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Moreover, the slope of the regression line was less than 0.5 in all ND genes among orders, indicating natural selection might have played the dominant role whereas mutation pressure had played a minor role in shaping CUB of ND genes across orders.
Heart failure can reflect impaired contractile function at the myofilament level. In healthy hearts, myofilaments become more sensitive to Ca
as cells are stretched. This represents a fundamental property of the myocardium that contributes to the Frank-Starling response, although the molecular mechanisms underlying the effect remain unclear. Mavacamten, which binds to myosin, is under investigation as a potential therapy for heart disease. We investigated how mavacamten affects the sarcomere-length dependence of Ca
-sensitive isometric contraction to determine how mavacamten might modulate the Frank-Starling mechanism.
Multicellular preparations from the left ventricular-free wall of hearts from organ donors were chemically permeabilized and Ca
activated in the presence or absence of 0.5-μM mavacamten at 1.9 or 2.3-μm sarcomere length (37°C). Isometric force and frequency-dependent viscoelastic myocardial stiffness measurements were made.
At both sarcomere lengths, mavacamten reduced maximal forcepies for cardiomyopathies.
Frailty is defined as a syndrome of increased vulnerability due to both age and disease that leads to an inability to cope with acute stressors. There has been growing interest in the surgical and emergency medicine literature in the potential use of Point-of-Care ultrasonic (PoCUS) measures of muscle mass to assess frailty in older adults. Our study examined the association between a simple ultrasonic measure of muscle thickness (MT, vastus medialis muscle thickness) and commonly used frailty measures (Cardiovascular Health Study, CHS; Rockwood Clinical Frailty Scale, RCFS) in older adults.
Participants were recruited sequentially from ambulatory geriatric medicine clinics in an academic medical centre (Vancouver General Hospital, Vancouver, Canada). Each subject had MT measured by PoCUS, as well as the CHS index and Rockwood Clinical Frailty Scale.
150 older adults (age ≥ 65; mean age 80.0 ± 0.5years, 66 women, 84 men) were recruited. In our final parsimonious models, MT showed a weak inverse association with the CHS index (Standardized β = -0.180 ± 0.080, R
= 0.06, p = 0.027) and no association with the RCFS (p = 0.776). Within the CHS index, most of the association was due to grip strength in men (Standardized β = -0.326 ± 0.099, R
= 0.26, p = 0.001).
Frailty is a multifactorial syndrome, and caution must be used in trying to screen for this condition with a single ultrasonic measure. Further work might indicate associations with a more restricted syndrome, such as sarcopenia.
Frailty is a multifactorial syndrome, and caution must be used in trying to screen for this condition with a single ultrasonic measure. Further work might indicate associations with a more restricted syndrome, such as sarcopenia.Phthalate esters (PAEs) are endocrine disrupters and can disrupt the functioning of different hormones, causing adverse effects on human health. Due to the potential exposure to phthalates in office rooms, their concentrations in the air of these premises after their renovation and furnishing were determined. The aim of the study was to determine the content of these compounds in the gas phase and adsorbed on the particles. Thus, the combined sampler with filters and adsorption tube was used for air sampling. Samples were analyzed by GC-MS. The gas fraction was dominated by dimethyl phthalate (DMP), diethyl phthalate (DEP), and the inhalable fraction by dibutyl phthalate (DBP) and 2-(diethylhexyl) phthalate (DEHP). The total concentration of phthalates in the respirable fraction in the furnished rooms was as **** as 92% of the phthalates determined in the inhalable fraction. In the rooms immediately after renovation and those arranged and used by employees for 7 months, their concentration in the respirable fraction did not exceed 25% of the phthalates in the inhalable fraction. Phthalate concentration in the renovated rooms after 7 months of their usage dropped by 84% in relation to PAEs concentration in newly arranged rooms and by 68% in relation to the phthalate concentration in empty rooms.Metal contamination is a threat to estuarine environments. They can accumulate in the food chain and cause toxic effects on aquatic organisms and human health. This study evaluated the concentrations of metals (Cd, Cr, Cu, Fe, Ni, Pb, and Zn) in aquatic organisms of Antonina Bay (southern Brazil) to analyze whether the metal concentrations were in accordance with Brazilian food legislation and estimate the human risk of local seafood consumption. All analyzed organisms (Centropomus parallelus, Mugil curema, Genidens genidens, Crassostrea brasiliana, and Xiphopenaeus kroyeri) showed traces of metals in their tissues with different metal concentrations among species. https://www.selleckchem.com/products/rituximab.html Metal concentrations were generally higher in oyster C. brasiliana, and biomagnification was not observed. Cr and Zn concentrations were above the limits established by legislation for all species in at least one sample. The concentrations of the other metals were within permitted levels. However, concentrations of Cd, Cr, Fe, and Zn posed a human consumption risk. In general, the C. brasiliana oyster presented the highest risk for human consumption, probably due to its filtering habit. Thus, the results indicated that metal concentrations in the tissues of the Antonina Bay seafood can pose a risk to human health, and this chronic exposure to metals also can cause toxic effects on local aquatic biota.This study utilized the Pooled Mean Group estimator to investigate the effect of renewable energy consumption, electricity consumption, economic growth, institutional quality, and globalization on carbon dioxide emission with an updated dataset for 10 economies for the time period from 1985 to 2018. Results of Harris-Tzavalis's test and Levin-Lin-Chu's test show that the utilized regressand and regressors are stationary at I(0) and I(I) that conform that the pooled mean group estimator panel ARDL can be utilized. Results of Kao and Pedroni cointegration tests show that cointegration exists amongst the variables. Empirical results of pooled mean group (PMG) revealed that renewable energy consumption helps to diminish the environmental degradation while foreign direct investment, electricity consumption, and economic growth and institutional quality positively affect the degradation of the environment. The findings show that globalization in the long run adversely and significantly influences the environmental degradation; globalization reduces the environmental degradation in the long run while in the short run, globalization positively and significantly influences the environmental degradation.
Moreover, the slope of the regression line was less than 0.5 in all ND genes among orders, indicating natural selection might have played the dominant role whereas mutation pressure had played a minor role in shaping CUB of ND genes across orders. Heart failure can reflect impaired contractile function at the myofilament level. In healthy hearts, myofilaments become more sensitive to Ca as cells are stretched. This represents a fundamental property of the myocardium that contributes to the Frank-Starling response, although the molecular mechanisms underlying the effect remain unclear. Mavacamten, which binds to myosin, is under investigation as a potential therapy for heart disease. We investigated how mavacamten affects the sarcomere-length dependence of Ca -sensitive isometric contraction to determine how mavacamten might modulate the Frank-Starling mechanism. Multicellular preparations from the left ventricular-free wall of hearts from organ donors were chemically permeabilized and Ca activated in the presence or absence of 0.5-μM mavacamten at 1.9 or 2.3-μm sarcomere length (37°C). Isometric force and frequency-dependent viscoelastic myocardial stiffness measurements were made. At both sarcomere lengths, mavacamten reduced maximal forcepies for cardiomyopathies. Frailty is defined as a syndrome of increased vulnerability due to both age and disease that leads to an inability to cope with acute stressors. There has been growing interest in the surgical and emergency medicine literature in the potential use of Point-of-Care ultrasonic (PoCUS) measures of muscle mass to assess frailty in older adults. Our study examined the association between a simple ultrasonic measure of muscle thickness (MT, vastus medialis muscle thickness) and commonly used frailty measures (Cardiovascular Health Study, CHS; Rockwood Clinical Frailty Scale, RCFS) in older adults. Participants were recruited sequentially from ambulatory geriatric medicine clinics in an academic medical centre (Vancouver General Hospital, Vancouver, Canada). Each subject had MT measured by PoCUS, as well as the CHS index and Rockwood Clinical Frailty Scale. 150 older adults (age ≥ 65; mean age 80.0 ± 0.5years, 66 women, 84 men) were recruited. In our final parsimonious models, MT showed a weak inverse association with the CHS index (Standardized β = -0.180 ± 0.080, R = 0.06, p = 0.027) and no association with the RCFS (p = 0.776). Within the CHS index, most of the association was due to grip strength in men (Standardized β = -0.326 ± 0.099, R = 0.26, p = 0.001). Frailty is a multifactorial syndrome, and caution must be used in trying to screen for this condition with a single ultrasonic measure. Further work might indicate associations with a more restricted syndrome, such as sarcopenia. Frailty is a multifactorial syndrome, and caution must be used in trying to screen for this condition with a single ultrasonic measure. Further work might indicate associations with a more restricted syndrome, such as sarcopenia.Phthalate esters (PAEs) are endocrine disrupters and can disrupt the functioning of different hormones, causing adverse effects on human health. Due to the potential exposure to phthalates in office rooms, their concentrations in the air of these premises after their renovation and furnishing were determined. The aim of the study was to determine the content of these compounds in the gas phase and adsorbed on the particles. Thus, the combined sampler with filters and adsorption tube was used for air sampling. Samples were analyzed by GC-MS. The gas fraction was dominated by dimethyl phthalate (DMP), diethyl phthalate (DEP), and the inhalable fraction by dibutyl phthalate (DBP) and 2-(diethylhexyl) phthalate (DEHP). The total concentration of phthalates in the respirable fraction in the furnished rooms was as much as 92% of the phthalates determined in the inhalable fraction. In the rooms immediately after renovation and those arranged and used by employees for 7 months, their concentration in the respirable fraction did not exceed 25% of the phthalates in the inhalable fraction. Phthalate concentration in the renovated rooms after 7 months of their usage dropped by 84% in relation to PAEs concentration in newly arranged rooms and by 68% in relation to the phthalate concentration in empty rooms.Metal contamination is a threat to estuarine environments. They can accumulate in the food chain and cause toxic effects on aquatic organisms and human health. This study evaluated the concentrations of metals (Cd, Cr, Cu, Fe, Ni, Pb, and Zn) in aquatic organisms of Antonina Bay (southern Brazil) to analyze whether the metal concentrations were in accordance with Brazilian food legislation and estimate the human risk of local seafood consumption. All analyzed organisms (Centropomus parallelus, Mugil curema, Genidens genidens, Crassostrea brasiliana, and Xiphopenaeus kroyeri) showed traces of metals in their tissues with different metal concentrations among species. https://www.selleckchem.com/products/rituximab.html Metal concentrations were generally higher in oyster C. brasiliana, and biomagnification was not observed. Cr and Zn concentrations were above the limits established by legislation for all species in at least one sample. The concentrations of the other metals were within permitted levels. However, concentrations of Cd, Cr, Fe, and Zn posed a human consumption risk. In general, the C. brasiliana oyster presented the highest risk for human consumption, probably due to its filtering habit. Thus, the results indicated that metal concentrations in the tissues of the Antonina Bay seafood can pose a risk to human health, and this chronic exposure to metals also can cause toxic effects on local aquatic biota.This study utilized the Pooled Mean Group estimator to investigate the effect of renewable energy consumption, electricity consumption, economic growth, institutional quality, and globalization on carbon dioxide emission with an updated dataset for 10 economies for the time period from 1985 to 2018. Results of Harris-Tzavalis's test and Levin-Lin-Chu's test show that the utilized regressand and regressors are stationary at I(0) and I(I) that conform that the pooled mean group estimator panel ARDL can be utilized. Results of Kao and Pedroni cointegration tests show that cointegration exists amongst the variables. Empirical results of pooled mean group (PMG) revealed that renewable energy consumption helps to diminish the environmental degradation while foreign direct investment, electricity consumption, and economic growth and institutional quality positively affect the degradation of the environment. The findings show that globalization in the long run adversely and significantly influences the environmental degradation; globalization reduces the environmental degradation in the long run while in the short run, globalization positively and significantly influences the environmental degradation.0 Commentarios 0 Acciones 1 Views 0 Vista previaPlease log in to like, share and comment! -
Therefore, the final diagnosis was pre-fibrotic primary myelofibrosis according to the 2016 WHO classification, Dynamic International Prognostic Scoring System (DIPSS) plus 2 (intermediate-2).
To our knowledge, we report uncommon case of primary myelofibrosis associated with extra-medullary myeloid proliferation of the right periadrenal tissue.
To our knowledge, we report uncommon case of primary myelofibrosis associated with extra-medullary myeloid proliferation of the right periadrenal tissue.
Gastric cancer in pregnancy is a very rare case with an incidence of 0.016% and is mostly detected in a locally advanced or advanced stage due to misinterpretation of non-specific signs and symptoms. Management of gastric cancer in pregnancy should emphasize mother and fetal survival. Currently, there is no diagnostic and management guidance for gastric cancer in pregnancy. The purpose of this study is to ascertain how to diagnose and manage gastric cancer in pregnancy.
This study is an evidence-based case report performed in Digestive Division of Department of Surgery in Cipto Mangunkusumo hospital in September-October 2017. Literature search on databases such as Cochrane, PubMed, ScienceDirect, and Scholar Google used keywords like "gastric cancer" AND "pregnant" OR "pregnancy" with inclusion criteria which are systematic review, randomized-clinical trial (RCT), cohort study, case report, or case series, performed in human and published in the last 10 years in English language. Critical appraisal is done according to Oxford Centre For Evidence-Based Medicine 2011. This work is reported in line with the SCARE criteria.
There are 9 case-report studies and 1 case-control study. Radiology examination includes endoscopy, MRI, and CT scan. Management is given according to cancer stage which is; surgery, surgery with adjuvant therapy, and palliative chemotherapy.
Radiology examinations with a lower risk of adverse effects are endoscopy and MRI. CT scan may be performed when the benefits exceed the risk. Surgery and chemoradiation have the lowest rate of adverse effects when done in the second and third trimester.
Radiology examinations with a lower risk of adverse effects are endoscopy and MRI. CT scan may be performed when the benefits exceed the risk. Surgery and chemoradiation have the lowest rate of adverse effects when done in the second and third trimester.
Gastric pseudotumors are rare entities whose clinical presentation resembles typical gastric neoplasias, often making them unrecognized unless other causes are considered.
We present a case report of a patient that debuts with dysphagia, with an abdominal computed axial tomography (CAT) scan revealing a mass at the gastro-esophageal junction suggestive of malignant origin, with studies revealing it to be Immunoglobulin G4-related (IgG4).
The diagnosis and identification of IgG4-related gastric pseudotumors is very complicated, often and most commonly an incidental diagnosis upon histologic analysis, as is the situation in this case.
Understanding its clinical course and early diagnosis can reduce unwarranted surgical intervention in some patients with IgG4-related disease.
Understanding its clinical course and early diagnosis can reduce unwarranted surgical intervention in some patients with IgG4-related disease.
Patients with osteochondromatosis have a higher risk of malignant transformation into secondary chondrosarcoma. https://www.selleckchem.com/products/atuzabrutinib.html Chondrosarcoma at the pelvic region tends to present late and therefore pose a significant challenge for orthopedic surgeons because of the large tumor size, local extension, and complex anatomy with proximity to major neurovascular structure, intestinal and urinary tract.
A 44-year-old male presented the chief complaint of 15 years growing lumps on his left buttock and right groin, presenting with pain. Plain radiography revealed popcorn calcification at the left iliac wing and right superior pubic rami. Multiple exostoses were also visible. MRI showed a larger tumor diameter at the left iliac wing by 33 cm and right pubic rami by 13 cm. The histopathological result from the biopsy suggested low-grade chondrosarcoma.
The patient underwent pelvic resection type I and III in two-stage surgery. About one month after the first surgery, there was a postoperative infection. Debridement and antibiotic therapy resulted in a desirable functional outcome with an MSTS score 27 and no local recurrence sign during a one-year follow-up.
Low-grade chondrosarcomas are not sensitive to radiation and chemotherapy; wide surgical resection is the mainstay of treatment. Chondrosarcoma at the iliac wing can be treated by pelvic resection type I, and further reconstruction needed to prevent pelvic tilting. Chondrosarcoma at pubic rami can be treated by pelvic resection type III.
Proper patient selections, preoperative planning, and wide surgical margins with reconstruction provide desirable local control and clinical outcomes following pelvic resection.
Proper patient selections, preoperative planning, and wide surgical margins with reconstruction provide desirable local control and clinical outcomes following pelvic resection.
Rhabdomyosarcoma (RMS) arises from mesenchymal cells committed to skeletal muscle. It is the most frequent soft-tissue sarcoma in children and makes up 5% of all pediatric malignant tumors. In this population, there are two main histological forms, which are the embryonal or the alveolar RMS. The retro auricular location is extremely rare. We present 2 cases of children with left retro-auricular RMS occurring at a very early stage of post natal development.
Two children were included in the RMS 2005 Protocol. The first child, aged 5-days, was managed by surgical resection in two steps after a previous incomplete resection which was followed by 8 chemotherapy cycle. The second, aged 3-days, was managed by surgical resection of the tumor bed, completed by 8 chemotherapy cycle. On regular follow up for over 6 years after the diagnosis, both patients are free of recurrence.
RMS is a fast-growing malignant and aggressive tumor originating from skeletal muscle. It occurs in the first decade of life and is associated with genetic conditions.
Therefore, the final diagnosis was pre-fibrotic primary myelofibrosis according to the 2016 WHO classification, Dynamic International Prognostic Scoring System (DIPSS) plus 2 (intermediate-2). To our knowledge, we report uncommon case of primary myelofibrosis associated with extra-medullary myeloid proliferation of the right periadrenal tissue. To our knowledge, we report uncommon case of primary myelofibrosis associated with extra-medullary myeloid proliferation of the right periadrenal tissue. Gastric cancer in pregnancy is a very rare case with an incidence of 0.016% and is mostly detected in a locally advanced or advanced stage due to misinterpretation of non-specific signs and symptoms. Management of gastric cancer in pregnancy should emphasize mother and fetal survival. Currently, there is no diagnostic and management guidance for gastric cancer in pregnancy. The purpose of this study is to ascertain how to diagnose and manage gastric cancer in pregnancy. This study is an evidence-based case report performed in Digestive Division of Department of Surgery in Cipto Mangunkusumo hospital in September-October 2017. Literature search on databases such as Cochrane, PubMed, ScienceDirect, and Scholar Google used keywords like "gastric cancer" AND "pregnant" OR "pregnancy" with inclusion criteria which are systematic review, randomized-clinical trial (RCT), cohort study, case report, or case series, performed in human and published in the last 10 years in English language. Critical appraisal is done according to Oxford Centre For Evidence-Based Medicine 2011. This work is reported in line with the SCARE criteria. There are 9 case-report studies and 1 case-control study. Radiology examination includes endoscopy, MRI, and CT scan. Management is given according to cancer stage which is; surgery, surgery with adjuvant therapy, and palliative chemotherapy. Radiology examinations with a lower risk of adverse effects are endoscopy and MRI. CT scan may be performed when the benefits exceed the risk. Surgery and chemoradiation have the lowest rate of adverse effects when done in the second and third trimester. Radiology examinations with a lower risk of adverse effects are endoscopy and MRI. CT scan may be performed when the benefits exceed the risk. Surgery and chemoradiation have the lowest rate of adverse effects when done in the second and third trimester. Gastric pseudotumors are rare entities whose clinical presentation resembles typical gastric neoplasias, often making them unrecognized unless other causes are considered. We present a case report of a patient that debuts with dysphagia, with an abdominal computed axial tomography (CAT) scan revealing a mass at the gastro-esophageal junction suggestive of malignant origin, with studies revealing it to be Immunoglobulin G4-related (IgG4). The diagnosis and identification of IgG4-related gastric pseudotumors is very complicated, often and most commonly an incidental diagnosis upon histologic analysis, as is the situation in this case. Understanding its clinical course and early diagnosis can reduce unwarranted surgical intervention in some patients with IgG4-related disease. Understanding its clinical course and early diagnosis can reduce unwarranted surgical intervention in some patients with IgG4-related disease. Patients with osteochondromatosis have a higher risk of malignant transformation into secondary chondrosarcoma. https://www.selleckchem.com/products/atuzabrutinib.html Chondrosarcoma at the pelvic region tends to present late and therefore pose a significant challenge for orthopedic surgeons because of the large tumor size, local extension, and complex anatomy with proximity to major neurovascular structure, intestinal and urinary tract. A 44-year-old male presented the chief complaint of 15 years growing lumps on his left buttock and right groin, presenting with pain. Plain radiography revealed popcorn calcification at the left iliac wing and right superior pubic rami. Multiple exostoses were also visible. MRI showed a larger tumor diameter at the left iliac wing by 33 cm and right pubic rami by 13 cm. The histopathological result from the biopsy suggested low-grade chondrosarcoma. The patient underwent pelvic resection type I and III in two-stage surgery. About one month after the first surgery, there was a postoperative infection. Debridement and antibiotic therapy resulted in a desirable functional outcome with an MSTS score 27 and no local recurrence sign during a one-year follow-up. Low-grade chondrosarcomas are not sensitive to radiation and chemotherapy; wide surgical resection is the mainstay of treatment. Chondrosarcoma at the iliac wing can be treated by pelvic resection type I, and further reconstruction needed to prevent pelvic tilting. Chondrosarcoma at pubic rami can be treated by pelvic resection type III. Proper patient selections, preoperative planning, and wide surgical margins with reconstruction provide desirable local control and clinical outcomes following pelvic resection. Proper patient selections, preoperative planning, and wide surgical margins with reconstruction provide desirable local control and clinical outcomes following pelvic resection. Rhabdomyosarcoma (RMS) arises from mesenchymal cells committed to skeletal muscle. It is the most frequent soft-tissue sarcoma in children and makes up 5% of all pediatric malignant tumors. In this population, there are two main histological forms, which are the embryonal or the alveolar RMS. The retro auricular location is extremely rare. We present 2 cases of children with left retro-auricular RMS occurring at a very early stage of post natal development. Two children were included in the RMS 2005 Protocol. The first child, aged 5-days, was managed by surgical resection in two steps after a previous incomplete resection which was followed by 8 chemotherapy cycle. The second, aged 3-days, was managed by surgical resection of the tumor bed, completed by 8 chemotherapy cycle. On regular follow up for over 6 years after the diagnosis, both patients are free of recurrence. RMS is a fast-growing malignant and aggressive tumor originating from skeletal muscle. It occurs in the first decade of life and is associated with genetic conditions.0 Commentarios 0 Acciones 1 Views 0 Vista previa -
Therefore, the final diagnosis was pre-fibrotic primary myelofibrosis according to the 2016 WHO classification, Dynamic International Prognostic Scoring System (DIPSS) plus 2 (intermediate-2).
To our knowledge, we report uncommon case of primary myelofibrosis associated with extra-medullary myeloid proliferation of the right periadrenal tissue.
To our knowledge, we report uncommon case of primary myelofibrosis associated with extra-medullary myeloid proliferation of the right periadrenal tissue.
Gastric cancer in pregnancy is a very rare case with an incidence of 0.016% and is mostly detected in a locally advanced or advanced stage due to misinterpretation of non-specific signs and symptoms. Management of gastric cancer in pregnancy should emphasize mother and fetal survival. Currently, there is no diagnostic and management guidance for gastric cancer in pregnancy. The purpose of this study is to ascertain how to diagnose and manage gastric cancer in pregnancy.
This study is an evidence-based case report performed in Digestive Division of Department of Surgery in Cipto Mangunkusumo hospital in September-October 2017. Literature search on databases such as Cochrane, PubMed, ScienceDirect, and Scholar Google used keywords like "gastric cancer" AND "pregnant" OR "pregnancy" with inclusion criteria which are systematic review, randomized-clinical trial (RCT), cohort study, case report, or case series, performed in human and published in the last 10 years in English language. Critical appraisal is done according to Oxford Centre For Evidence-Based Medicine 2011. This work is reported in line with the SCARE criteria.
There are 9 case-report studies and 1 case-control study. Radiology examination includes endoscopy, MRI, and CT scan. Management is given according to cancer stage which is; surgery, surgery with adjuvant therapy, and palliative chemotherapy.
Radiology examinations with a lower risk of adverse effects are endoscopy and MRI. CT scan may be performed when the benefits exceed the risk. Surgery and chemoradiation have the lowest rate of adverse effects when done in the second and third trimester.
Radiology examinations with a lower risk of adverse effects are endoscopy and MRI. CT scan may be performed when the benefits exceed the risk. Surgery and chemoradiation have the lowest rate of adverse effects when done in the second and third trimester.
Gastric pseudotumors are rare entities whose clinical presentation resembles typical gastric neoplasias, often making them unrecognized unless other causes are considered.
We present a case report of a patient that debuts with dysphagia, with an abdominal computed axial tomography (CAT) scan revealing a mass at the gastro-esophageal junction suggestive of malignant origin, with studies revealing it to be Immunoglobulin G4-related (IgG4).
The diagnosis and identification of IgG4-related gastric pseudotumors is very complicated, often and most commonly an incidental diagnosis upon histologic analysis, as is the situation in this case.
Understanding its clinical course and early diagnosis can reduce unwarranted surgical intervention in some patients with IgG4-related disease.
Understanding its clinical course and early diagnosis can reduce unwarranted surgical intervention in some patients with IgG4-related disease.
Patients with osteochondromatosis have a higher risk of malignant transformation into secondary chondrosarcoma. https://www.selleckchem.com/products/atuzabrutinib.html Chondrosarcoma at the pelvic region tends to present late and therefore pose a significant challenge for orthopedic surgeons because of the large tumor size, local extension, and complex anatomy with proximity to major neurovascular structure, intestinal and urinary tract.
A 44-year-old male presented the chief complaint of 15 years growing lumps on his left buttock and right groin, presenting with pain. Plain radiography revealed popcorn calcification at the left iliac wing and right superior pubic rami. Multiple exostoses were also visible. MRI showed a larger tumor diameter at the left iliac wing by 33 cm and right pubic rami by 13 cm. The histopathological result from the biopsy suggested low-grade chondrosarcoma.
The patient underwent pelvic resection type I and III in two-stage surgery. About one month after the first surgery, there was a postoperative infection. Debridement and antibiotic therapy resulted in a desirable functional outcome with an MSTS score 27 and no local recurrence sign during a one-year follow-up.
Low-grade chondrosarcomas are not sensitive to radiation and chemotherapy; wide surgical resection is the mainstay of treatment. Chondrosarcoma at the iliac wing can be treated by pelvic resection type I, and further reconstruction needed to prevent pelvic tilting. Chondrosarcoma at pubic rami can be treated by pelvic resection type III.
Proper patient selections, preoperative planning, and wide surgical margins with reconstruction provide desirable local control and clinical outcomes following pelvic resection.
Proper patient selections, preoperative planning, and wide surgical margins with reconstruction provide desirable local control and clinical outcomes following pelvic resection.
Rhabdomyosarcoma (RMS) arises from mesenchymal cells committed to skeletal muscle. It is the most frequent soft-tissue sarcoma in children and makes up 5% of all pediatric malignant tumors. In this population, there are two main histological forms, which are the embryonal or the alveolar RMS. The retro auricular location is extremely rare. We present 2 cases of children with left retro-auricular RMS occurring at a very early stage of post natal development.
Two children were included in the RMS 2005 Protocol. The first child, aged 5-days, was managed by surgical resection in two steps after a previous incomplete resection which was followed by 8 chemotherapy cycle. The second, aged 3-days, was managed by surgical resection of the tumor bed, completed by 8 chemotherapy cycle. On regular follow up for over 6 years after the diagnosis, both patients are free of recurrence.
RMS is a fast-growing malignant and aggressive tumor originating from skeletal muscle. It occurs in the first decade of life and is associated with genetic conditions.
Therefore, the final diagnosis was pre-fibrotic primary myelofibrosis according to the 2016 WHO classification, Dynamic International Prognostic Scoring System (DIPSS) plus 2 (intermediate-2). To our knowledge, we report uncommon case of primary myelofibrosis associated with extra-medullary myeloid proliferation of the right periadrenal tissue. To our knowledge, we report uncommon case of primary myelofibrosis associated with extra-medullary myeloid proliferation of the right periadrenal tissue. Gastric cancer in pregnancy is a very rare case with an incidence of 0.016% and is mostly detected in a locally advanced or advanced stage due to misinterpretation of non-specific signs and symptoms. Management of gastric cancer in pregnancy should emphasize mother and fetal survival. Currently, there is no diagnostic and management guidance for gastric cancer in pregnancy. The purpose of this study is to ascertain how to diagnose and manage gastric cancer in pregnancy. This study is an evidence-based case report performed in Digestive Division of Department of Surgery in Cipto Mangunkusumo hospital in September-October 2017. Literature search on databases such as Cochrane, PubMed, ScienceDirect, and Scholar Google used keywords like "gastric cancer" AND "pregnant" OR "pregnancy" with inclusion criteria which are systematic review, randomized-clinical trial (RCT), cohort study, case report, or case series, performed in human and published in the last 10 years in English language. Critical appraisal is done according to Oxford Centre For Evidence-Based Medicine 2011. This work is reported in line with the SCARE criteria. There are 9 case-report studies and 1 case-control study. Radiology examination includes endoscopy, MRI, and CT scan. Management is given according to cancer stage which is; surgery, surgery with adjuvant therapy, and palliative chemotherapy. Radiology examinations with a lower risk of adverse effects are endoscopy and MRI. CT scan may be performed when the benefits exceed the risk. Surgery and chemoradiation have the lowest rate of adverse effects when done in the second and third trimester. Radiology examinations with a lower risk of adverse effects are endoscopy and MRI. CT scan may be performed when the benefits exceed the risk. Surgery and chemoradiation have the lowest rate of adverse effects when done in the second and third trimester. Gastric pseudotumors are rare entities whose clinical presentation resembles typical gastric neoplasias, often making them unrecognized unless other causes are considered. We present a case report of a patient that debuts with dysphagia, with an abdominal computed axial tomography (CAT) scan revealing a mass at the gastro-esophageal junction suggestive of malignant origin, with studies revealing it to be Immunoglobulin G4-related (IgG4). The diagnosis and identification of IgG4-related gastric pseudotumors is very complicated, often and most commonly an incidental diagnosis upon histologic analysis, as is the situation in this case. Understanding its clinical course and early diagnosis can reduce unwarranted surgical intervention in some patients with IgG4-related disease. Understanding its clinical course and early diagnosis can reduce unwarranted surgical intervention in some patients with IgG4-related disease. Patients with osteochondromatosis have a higher risk of malignant transformation into secondary chondrosarcoma. https://www.selleckchem.com/products/atuzabrutinib.html Chondrosarcoma at the pelvic region tends to present late and therefore pose a significant challenge for orthopedic surgeons because of the large tumor size, local extension, and complex anatomy with proximity to major neurovascular structure, intestinal and urinary tract. A 44-year-old male presented the chief complaint of 15 years growing lumps on his left buttock and right groin, presenting with pain. Plain radiography revealed popcorn calcification at the left iliac wing and right superior pubic rami. Multiple exostoses were also visible. MRI showed a larger tumor diameter at the left iliac wing by 33 cm and right pubic rami by 13 cm. The histopathological result from the biopsy suggested low-grade chondrosarcoma. The patient underwent pelvic resection type I and III in two-stage surgery. About one month after the first surgery, there was a postoperative infection. Debridement and antibiotic therapy resulted in a desirable functional outcome with an MSTS score 27 and no local recurrence sign during a one-year follow-up. Low-grade chondrosarcomas are not sensitive to radiation and chemotherapy; wide surgical resection is the mainstay of treatment. Chondrosarcoma at the iliac wing can be treated by pelvic resection type I, and further reconstruction needed to prevent pelvic tilting. Chondrosarcoma at pubic rami can be treated by pelvic resection type III. Proper patient selections, preoperative planning, and wide surgical margins with reconstruction provide desirable local control and clinical outcomes following pelvic resection. Proper patient selections, preoperative planning, and wide surgical margins with reconstruction provide desirable local control and clinical outcomes following pelvic resection. Rhabdomyosarcoma (RMS) arises from mesenchymal cells committed to skeletal muscle. It is the most frequent soft-tissue sarcoma in children and makes up 5% of all pediatric malignant tumors. In this population, there are two main histological forms, which are the embryonal or the alveolar RMS. The retro auricular location is extremely rare. We present 2 cases of children with left retro-auricular RMS occurring at a very early stage of post natal development. Two children were included in the RMS 2005 Protocol. The first child, aged 5-days, was managed by surgical resection in two steps after a previous incomplete resection which was followed by 8 chemotherapy cycle. The second, aged 3-days, was managed by surgical resection of the tumor bed, completed by 8 chemotherapy cycle. On regular follow up for over 6 years after the diagnosis, both patients are free of recurrence. RMS is a fast-growing malignant and aggressive tumor originating from skeletal muscle. It occurs in the first decade of life and is associated with genetic conditions.0 Commentarios 0 Acciones 1 Views 0 Vista previa -
Perfluoroalkyl substances (PFASs) persist and are ubiquitous in the environment. The origins of PFAS toxicity and how they specifically affect the functions of proteins remain unclear. Herein, we report that PFASs can strongly inhibit the activity of human carbonic anhydrases (hCAs), which are ubiquitous enzymes that catalyze the hydration of CO2, are abundant in the blood and organs of mammals, and involved in pH regulation, ion homeostasis, and biosynthesis. The interactions between PFASs and hCAs were investigated using stopped-flow kinetic enzyme-inhibition measurements, native mass spectrometry (MS), and ligand-docking simulations. Narrow-bore emitters in native MS with inner diameters of ∼300 nm were used to directly and simultaneously measure the dissociation constants of 11 PFASs to an enzyme, which was not possible using conventional emitters. The data from native MS and stopped-flow measurements were in excellent agreement. Of 15 PFASs investigated, eight can inhibit at least one of four hCA isozymes (I, II, IX, and XII) with submicromolar inhibition constants, including perfluorooctanoic acid, perfluorooctanesulfonamide, and perfluorooctanesulfonic acid. Some PFASs, including those with both short and long perfluoromethylene chains, can effectively inhibit at least one hCA isozyme with low nanomolar inhibition constants.Developing effective and nonprecious electrocatalysts is an indispensable requirement for boosting the efficiency of water splitting to obtain clean and sustainable fuels. Herein, we reported a feasible strategy for preparing a trimetallic (NiCoFe) superior electrocatalyst with novel open-cage/3D frame-like structure for oxygen evolution reaction (OER). It is prepared by consequence thermal treatments of CoFe Prussian blue analog frame/cage-like structure under Argon (CoFeA-TT) atmosphere, and then electrodeposition of Nickel-Cobalt Sulfide nanosheets as shell layer on it. The electrochemical measurements demonstrated that the deposition of NiCoS on CoFeA-TT (NiCo-S@CoFeA-TT) has the best catalytic performance and can drive the benchmark current density of 10 mA cm-2 at a low overpotential of 268 mV with a Tafel slope of 62 mV dec-1 and an excellent long term catalytic stability in alkaline medium. Its outstanding electrocatalytic performances are benefited from frame/cage-like structures, highly exposed active sites, accelerated mass and electron transport, and synergistic effect of multiple hybrid components. The NiCo-S@CoFeA-TT showed to act better than most advanced nonprecious catalysts and noble commercial RuO2 catalyst. This work exhibited an effective and efficient approach to design three-dimensional porous architecture catalysts for the energy-relevant electro-catalysis reaction.Developing high-efficiency and cost-effective electrocatalysts for the oxygen evolution reaction (OER) is crucial for various energy conversion systems. https://www.selleckchem.com/products/rgt-018.html Herein, N/S co-doped C encapsulated hollow NiCo2O4/NiO hexagonal rods (HNHR@N/S-C) as the electrocatalysts for OER have been successfully prepared with rational control of structure and composition. Experimental and theoretical results have highlighted that the NiCo2O4/NiO heterojunction in the obtained electrocatalyst can provide abundant active Ni and Co sites for the OER, leading to the highly enhanced OER performance. Moreover, attributed to the hierarchical hollow structure, which can provide a large surface area, and the improved electric conductivity with a coating of the N/S co-doped carbon layer, which can facilitate charge transport during the catalytic processes, a remarkable OER activity over HNHR@N/S-C with a low overpotential (η) of 285 mV (at j = 10 mA cm-2) and a Tafel slope of 53.0 mV decade-1 has been achieved, which is comparable to that of the noble metal catalyst IrO2. Because of the protection of the N/S doped C layer coating, HNHR@N/S-C can also maintain the current density of 10 mA cm-2 for at least 12 h in alkaline media without obvious losses of activity.Photodynamic therapy (PDT) possesses two pathways depending on the type of high-toxicity reactive oxygen species (ROS), superoxide anion radical (O2·-) and hydroxyl radical (·OH) generated through Type I and singlet oxygen (1O2) generated through Type II, inducing cancer cell apoptosis. However, the low efficiency of ROS generation and poor biocompatibility are the limitations of the traditional photosensitizers for PDT. Herein, inspired by photochemical reactions of titanium dioxide and porphyrin-based metal-organic frameworks, we developed a nanoplatform by covering ultrasmall titanium dioxide nanoparticles on a heterodimer made up of upconversion nanoparticles and metal-organic frameworks, realizing a multimode PDT through Type I and Type II mechanisms. Once irradiated by a near-infrared light, upconversion nanoparticles could generate ultraviolet and visible lights, which were not only able to stimulate different photochemical reactions of titanium dioxide and porphyrin but also accomplish deep penetration photodynamic therapy. Our photosensitive agent exhibited good biocompatibility and an effective multimode PDT performance, which could meet the needs of different situations of photodynamic therapy in the future.Three new quaternary Zintl phases with the "9-4-9" formula, Ae9Mn4-xAlxSb9 (Ae = Ca, Yb, Eu), have been synthesized using Pb as the metal flux, and their crystal structures have been established by single-crystal X-ray diffraction. Both Ca9Mn2.91(4)Al1.09Sb9 and Yb9Mn3.59(6)Al0.41Sb9 are isostructural with Ca9Mn4Bi9, and they crystallize in the orthorhombic space group Pbam with unit cell dimensions of a = 12.4571(8), 12.2884(16) Å, b = 22.1352(16), 22.024(3) Å, and c = 4.6012(3), 4.6187(6) Å, respectively. Their anionic structures can be viewed as infinite ribbons based on corner-shared tetrahedrons. Also, Eu9Mn2.87(4)Al1.13Sb9 has the space group Cmca and a = 9.4883(7) Å, b = 23.6895(18) Å, and c = 24.4845(19) Å. The structural relationships between Ca9Mn2.91(4)Al1.09Sb9 and Eu9Mn2.87(4)Al1.13Sb9 are compared and discussed as well. The successful Al3+ substitution provides additional electrons to the compounds to achieve structural stability. Magnetic susceptibility and electrical resistivity measurements, performed on single crystals of Eu9Mn2.
Perfluoroalkyl substances (PFASs) persist and are ubiquitous in the environment. The origins of PFAS toxicity and how they specifically affect the functions of proteins remain unclear. Herein, we report that PFASs can strongly inhibit the activity of human carbonic anhydrases (hCAs), which are ubiquitous enzymes that catalyze the hydration of CO2, are abundant in the blood and organs of mammals, and involved in pH regulation, ion homeostasis, and biosynthesis. The interactions between PFASs and hCAs were investigated using stopped-flow kinetic enzyme-inhibition measurements, native mass spectrometry (MS), and ligand-docking simulations. Narrow-bore emitters in native MS with inner diameters of ∼300 nm were used to directly and simultaneously measure the dissociation constants of 11 PFASs to an enzyme, which was not possible using conventional emitters. The data from native MS and stopped-flow measurements were in excellent agreement. Of 15 PFASs investigated, eight can inhibit at least one of four hCA isozymes (I, II, IX, and XII) with submicromolar inhibition constants, including perfluorooctanoic acid, perfluorooctanesulfonamide, and perfluorooctanesulfonic acid. Some PFASs, including those with both short and long perfluoromethylene chains, can effectively inhibit at least one hCA isozyme with low nanomolar inhibition constants.Developing effective and nonprecious electrocatalysts is an indispensable requirement for boosting the efficiency of water splitting to obtain clean and sustainable fuels. Herein, we reported a feasible strategy for preparing a trimetallic (NiCoFe) superior electrocatalyst with novel open-cage/3D frame-like structure for oxygen evolution reaction (OER). It is prepared by consequence thermal treatments of CoFe Prussian blue analog frame/cage-like structure under Argon (CoFeA-TT) atmosphere, and then electrodeposition of Nickel-Cobalt Sulfide nanosheets as shell layer on it. The electrochemical measurements demonstrated that the deposition of NiCoS on CoFeA-TT (NiCo-S@CoFeA-TT) has the best catalytic performance and can drive the benchmark current density of 10 mA cm-2 at a low overpotential of 268 mV with a Tafel slope of 62 mV dec-1 and an excellent long term catalytic stability in alkaline medium. Its outstanding electrocatalytic performances are benefited from frame/cage-like structures, highly exposed active sites, accelerated mass and electron transport, and synergistic effect of multiple hybrid components. The NiCo-S@CoFeA-TT showed to act better than most advanced nonprecious catalysts and noble commercial RuO2 catalyst. This work exhibited an effective and efficient approach to design three-dimensional porous architecture catalysts for the energy-relevant electro-catalysis reaction.Developing high-efficiency and cost-effective electrocatalysts for the oxygen evolution reaction (OER) is crucial for various energy conversion systems. https://www.selleckchem.com/products/rgt-018.html Herein, N/S co-doped C encapsulated hollow NiCo2O4/NiO hexagonal rods (HNHR@N/S-C) as the electrocatalysts for OER have been successfully prepared with rational control of structure and composition. Experimental and theoretical results have highlighted that the NiCo2O4/NiO heterojunction in the obtained electrocatalyst can provide abundant active Ni and Co sites for the OER, leading to the highly enhanced OER performance. Moreover, attributed to the hierarchical hollow structure, which can provide a large surface area, and the improved electric conductivity with a coating of the N/S co-doped carbon layer, which can facilitate charge transport during the catalytic processes, a remarkable OER activity over HNHR@N/S-C with a low overpotential (η) of 285 mV (at j = 10 mA cm-2) and a Tafel slope of 53.0 mV decade-1 has been achieved, which is comparable to that of the noble metal catalyst IrO2. Because of the protection of the N/S doped C layer coating, HNHR@N/S-C can also maintain the current density of 10 mA cm-2 for at least 12 h in alkaline media without obvious losses of activity.Photodynamic therapy (PDT) possesses two pathways depending on the type of high-toxicity reactive oxygen species (ROS), superoxide anion radical (O2·-) and hydroxyl radical (·OH) generated through Type I and singlet oxygen (1O2) generated through Type II, inducing cancer cell apoptosis. However, the low efficiency of ROS generation and poor biocompatibility are the limitations of the traditional photosensitizers for PDT. Herein, inspired by photochemical reactions of titanium dioxide and porphyrin-based metal-organic frameworks, we developed a nanoplatform by covering ultrasmall titanium dioxide nanoparticles on a heterodimer made up of upconversion nanoparticles and metal-organic frameworks, realizing a multimode PDT through Type I and Type II mechanisms. Once irradiated by a near-infrared light, upconversion nanoparticles could generate ultraviolet and visible lights, which were not only able to stimulate different photochemical reactions of titanium dioxide and porphyrin but also accomplish deep penetration photodynamic therapy. Our photosensitive agent exhibited good biocompatibility and an effective multimode PDT performance, which could meet the needs of different situations of photodynamic therapy in the future.Three new quaternary Zintl phases with the "9-4-9" formula, Ae9Mn4-xAlxSb9 (Ae = Ca, Yb, Eu), have been synthesized using Pb as the metal flux, and their crystal structures have been established by single-crystal X-ray diffraction. Both Ca9Mn2.91(4)Al1.09Sb9 and Yb9Mn3.59(6)Al0.41Sb9 are isostructural with Ca9Mn4Bi9, and they crystallize in the orthorhombic space group Pbam with unit cell dimensions of a = 12.4571(8), 12.2884(16) Å, b = 22.1352(16), 22.024(3) Å, and c = 4.6012(3), 4.6187(6) Å, respectively. Their anionic structures can be viewed as infinite ribbons based on corner-shared tetrahedrons. Also, Eu9Mn2.87(4)Al1.13Sb9 has the space group Cmca and a = 9.4883(7) Å, b = 23.6895(18) Å, and c = 24.4845(19) Å. The structural relationships between Ca9Mn2.91(4)Al1.09Sb9 and Eu9Mn2.87(4)Al1.13Sb9 are compared and discussed as well. The successful Al3+ substitution provides additional electrons to the compounds to achieve structural stability. Magnetic susceptibility and electrical resistivity measurements, performed on single crystals of Eu9Mn2.0 Commentarios 0 Acciones 1 Views 0 Vista previa -
Natalizumab is approved for multiple sclerosis treatment at a dose of 300 mg every 4 weeks. Extended-interval dosing of natalizumab has been proposed as a strategy to mitigate the risk of progressive multifocal leukoencephalopathy, but the efficacy of extended-interval dosing is not established. Previous models suggesting lower efficacy when initiating natalizumab treatment with extended-interval dosing rather than every-4-week dosing are inconsistent with reports from clinical observations and real-world studies conducted in patient populations switching to extended-interval dosing after a period of receiving natalizumab every 4 weeks. Here, the efficacy of natalizumab extended-interval dosing was modeled specifically in patients switching from every-4-week dosing to extended-interval dosing. Published population pharmacokinetic/pharmacodynamic models were used to simulate the distribution of alpha-4 integrin saturations for different body weight categories and dosing intervals (every 5, 6, 7, 8, 10, or 12 weeks). Generalized estimating equations relating alpha-4 integrin saturation to probability of multiple sclerosis lesion or relapse were derived from RESTORE trial data, which included patients (n = 175) who discontinued natalizumab after being treated every 4 weeks for ≥1 year and had no relapses in the year before discontinuation. The model-based simulations described indicate that every-5-week or every-6-week dosing is likely to maintain the efficacy of natalizumab, particularly at body weights less then 80 kg, in patients who switch after a period of stability on every-4-week dosing. The efficacy of natalizumab decreases as dosing intervals and body weight increase. Partial model validation was achieved in that observed outcomes in an independent clinical study were similar to those predicted by the models.
Ultra-high-field 7-Tesla (7T) magnetic resonance imaging (MRI) offers increased signal-to-noise and contrast-to-noise ratios, which may improve visualization of cortical malformations. We aim to assess the clinical value of in vivo structural 7T MRI and its post-processing for the noninvasive identification of epileptic brain lesions in patients with pharmacoresistant epilepsy and nonlesional 3T MRI who are undergoing presurgical evaluation.
Sixty-seven patients were included who had nonlesional 3T MRI by official radiology report. Epilepsy protocols were used for the 3T and 7T acquisitions. Post-processing of the 7T T1-weighted magnetization-prepared two rapid acquisition gradient echoes sequence was performed using the morphometric analysis program (MAP) with comparison to a normal database consisting of 50 healthy controls. Review of 7T was performed by an experienced board-certified neuroradiologist and at the multimodal patient management conference. The clinical significance of 7T findings was assessed based on intracranial electroencephalography (ICEEG) ictal onset, surgery, postoperative seizure outcomes, and histopathology.
Unaided visual review of 7T detected previously unappreciated subtle lesions in 22% (15/67). When aided by 7T MAP, the total yield increased to 43% (29/67). The location of the 7T-identified lesion was identical to or contained within the ICEEG ictal onset in 13 of 16 (81%). Complete resection of the 7T-identified lesion was associated with seizure freedom (P=.03). Histopathology of the 7T-identified lesions encountered mainly focal cortical dysplasia (FCD). 7T MAP yielded 25% more lesions (6/24) than 3T MAP, and showed improved conspicuity in 46% (11/24).
Our data suggest a major benefit of 7T with post-processing for detecting subtle FCD lesions for patients with pharmacoresistant epilepsy and nonlesional 3T MRI.
Our data suggest a major benefit of 7T with post-processing for detecting subtle FCD lesions for patients with pharmacoresistant epilepsy and nonlesional 3T MRI.
Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder typically diagnosed after the second year of life; however, differences in brain structure and function associated with ASD have been ascertained in early infancy. Identifying behavioural markers of ASD risk in early infancy has the potential to facilitate early detection and intervention.
We examined associations between infant behaviour and adolescent behaviours associated with ASD.
Analyses leveraged data available on 370 participants from the New Bedford Cohort, a sociodemographically diverse prospective birth cohort of children born from 1993 to 1998 to mothers residing near the New Bedford Harbor Superfund site in Massachusetts. Longitudinal assessments were used to examine the associations between behaviours when children were approximately 2weeks old (measured by the Neonatal Behavioral Assessment Scale [NBAS]), and subsequent maladaptive behaviours associated with ASD at approximately 15years old [measured by the Behavior AssessmenThe NBAS is an established and accessible instrument that assesses a broad range of behaviours in very young infants, and may be a useful tool for newborn assessments of developmental risk, including risk of ASD-associated behaviours.
Sleep-related hypermotor epilepsy (SHE) is a focal epilepsy characterized by seizures occurring mostly during sleep, ranging from brief seizures with paroxysmal arousals (SPAs) to hyperkinetic seizures and ambulatory behaviors. SPAs are brief and stereotypic seizures representing the beginning of a major seizure. Distinguishing SPAs from disorders of arousal (DOAs) and their briefest episodes called simple arousal movements (SAMs) is difficult. https://www.selleckchem.com/products/bevacizumab.html We performed a characterization of SPAs and SAMs to identify video-polysomnographic (VPSG) features that can contribute to the diagnosis of SHE or DOA.
Fifteen SHE, 30 DOA adult patients, and 15 healthy subjects underwent full-night VPSG. Two neurologist experts in sleep disorders and epilepsy classified all the sleep-related movements and episodes recorded. For each SPAs and SAMs, sleep stage at onset, duration, limb involvement, progression, and semiology have been identified.
A total of 121 SPAs were recorded, emerging mostly during stage 1-2 non-rapid eye movement (NREM) sleep (median duration 5seconds).
Natalizumab is approved for multiple sclerosis treatment at a dose of 300 mg every 4 weeks. Extended-interval dosing of natalizumab has been proposed as a strategy to mitigate the risk of progressive multifocal leukoencephalopathy, but the efficacy of extended-interval dosing is not established. Previous models suggesting lower efficacy when initiating natalizumab treatment with extended-interval dosing rather than every-4-week dosing are inconsistent with reports from clinical observations and real-world studies conducted in patient populations switching to extended-interval dosing after a period of receiving natalizumab every 4 weeks. Here, the efficacy of natalizumab extended-interval dosing was modeled specifically in patients switching from every-4-week dosing to extended-interval dosing. Published population pharmacokinetic/pharmacodynamic models were used to simulate the distribution of alpha-4 integrin saturations for different body weight categories and dosing intervals (every 5, 6, 7, 8, 10, or 12 weeks). Generalized estimating equations relating alpha-4 integrin saturation to probability of multiple sclerosis lesion or relapse were derived from RESTORE trial data, which included patients (n = 175) who discontinued natalizumab after being treated every 4 weeks for ≥1 year and had no relapses in the year before discontinuation. The model-based simulations described indicate that every-5-week or every-6-week dosing is likely to maintain the efficacy of natalizumab, particularly at body weights less then 80 kg, in patients who switch after a period of stability on every-4-week dosing. The efficacy of natalizumab decreases as dosing intervals and body weight increase. Partial model validation was achieved in that observed outcomes in an independent clinical study were similar to those predicted by the models. Ultra-high-field 7-Tesla (7T) magnetic resonance imaging (MRI) offers increased signal-to-noise and contrast-to-noise ratios, which may improve visualization of cortical malformations. We aim to assess the clinical value of in vivo structural 7T MRI and its post-processing for the noninvasive identification of epileptic brain lesions in patients with pharmacoresistant epilepsy and nonlesional 3T MRI who are undergoing presurgical evaluation. Sixty-seven patients were included who had nonlesional 3T MRI by official radiology report. Epilepsy protocols were used for the 3T and 7T acquisitions. Post-processing of the 7T T1-weighted magnetization-prepared two rapid acquisition gradient echoes sequence was performed using the morphometric analysis program (MAP) with comparison to a normal database consisting of 50 healthy controls. Review of 7T was performed by an experienced board-certified neuroradiologist and at the multimodal patient management conference. The clinical significance of 7T findings was assessed based on intracranial electroencephalography (ICEEG) ictal onset, surgery, postoperative seizure outcomes, and histopathology. Unaided visual review of 7T detected previously unappreciated subtle lesions in 22% (15/67). When aided by 7T MAP, the total yield increased to 43% (29/67). The location of the 7T-identified lesion was identical to or contained within the ICEEG ictal onset in 13 of 16 (81%). Complete resection of the 7T-identified lesion was associated with seizure freedom (P=.03). Histopathology of the 7T-identified lesions encountered mainly focal cortical dysplasia (FCD). 7T MAP yielded 25% more lesions (6/24) than 3T MAP, and showed improved conspicuity in 46% (11/24). Our data suggest a major benefit of 7T with post-processing for detecting subtle FCD lesions for patients with pharmacoresistant epilepsy and nonlesional 3T MRI. Our data suggest a major benefit of 7T with post-processing for detecting subtle FCD lesions for patients with pharmacoresistant epilepsy and nonlesional 3T MRI. Autism Spectrum Disorder (ASD) is a neurodevelopmental disorder typically diagnosed after the second year of life; however, differences in brain structure and function associated with ASD have been ascertained in early infancy. Identifying behavioural markers of ASD risk in early infancy has the potential to facilitate early detection and intervention. We examined associations between infant behaviour and adolescent behaviours associated with ASD. Analyses leveraged data available on 370 participants from the New Bedford Cohort, a sociodemographically diverse prospective birth cohort of children born from 1993 to 1998 to mothers residing near the New Bedford Harbor Superfund site in Massachusetts. Longitudinal assessments were used to examine the associations between behaviours when children were approximately 2weeks old (measured by the Neonatal Behavioral Assessment Scale [NBAS]), and subsequent maladaptive behaviours associated with ASD at approximately 15years old [measured by the Behavior AssessmenThe NBAS is an established and accessible instrument that assesses a broad range of behaviours in very young infants, and may be a useful tool for newborn assessments of developmental risk, including risk of ASD-associated behaviours. Sleep-related hypermotor epilepsy (SHE) is a focal epilepsy characterized by seizures occurring mostly during sleep, ranging from brief seizures with paroxysmal arousals (SPAs) to hyperkinetic seizures and ambulatory behaviors. SPAs are brief and stereotypic seizures representing the beginning of a major seizure. Distinguishing SPAs from disorders of arousal (DOAs) and their briefest episodes called simple arousal movements (SAMs) is difficult. https://www.selleckchem.com/products/bevacizumab.html We performed a characterization of SPAs and SAMs to identify video-polysomnographic (VPSG) features that can contribute to the diagnosis of SHE or DOA. Fifteen SHE, 30 DOA adult patients, and 15 healthy subjects underwent full-night VPSG. Two neurologist experts in sleep disorders and epilepsy classified all the sleep-related movements and episodes recorded. For each SPAs and SAMs, sleep stage at onset, duration, limb involvement, progression, and semiology have been identified. A total of 121 SPAs were recorded, emerging mostly during stage 1-2 non-rapid eye movement (NREM) sleep (median duration 5seconds).0 Commentarios 0 Acciones 1 Views 0 Vista previa -
Coronavirus disease 2019 (COVID-19) is a disruptive event devastating to the workplace and the global community. Drawing on terror management theory, we develop and test a model that explains how COVID-19-triggered mortality salience influences employees' state anxiety and their responses at and outside work. We conducted an experience sampling method study using employees from an information technology firm in China when COVID-19 was surging there and two experiments using employees from a variety of industries in the United States when it became a new epicenter of the global outbreak. Results from 3 studies largely supported our theoretical hypotheses. Specifically, our research showed that mortality salience concerning COVID-19 was positively related to employees' state anxiety (general anxiety in Study 1 and Study 2 and death-specific anxiety in Study 3). Our studies also found that servant leadership is particularly crucial in guiding employees with state anxiety associated with COVID-19 mortality salience to be engaged in their jobs and to contribute more to the broader community. Our findings offer timely, valuable implications for theory and practice. (PsycInfo Database Record (c) 2020 APA, all rights reserved).Although leaders' daily work is inherently relational, it is possible that leaders can feel lonely and isolated from followers. Integrating theoretical ideas from regulatory loop models of loneliness with evolutionary perspectives of loneliness, we posit that daily leader loneliness (i.e., feelings of isolation stemming from one's followers) may prompt harmful self-perpetuating as well as beneficial self-correcting cycles of loneliness at work via different rumination processes. We expect that leader loneliness will relate to 2 forms of rumination after work-maladaptive affect-focused rumination and adaptive problem-solving pondering. We expect that each form of rumination will hinder or facilitate next-day work engagement and helping, which will then matter for subsequent leader loneliness. In a 10-day experience sampling investigation of 86 leaders, we found that daily leader loneliness exhibits a self-perpetuating pattern via affect-focused rumination because this type of rumination reduces next-day work engagement and helping. At the same time, daily leader loneliness exhibits a self-correcting pattern via problem-solving pondering, as this type of forward-thinking rumination facilitates work engagement and helping the next day. https://www.selleckchem.com/products/beta-aminopropionitrile.html Furthermore, leader self-efficacy enhances the extent to which problem-solving pondering occurs when leaders feel lonely. In a supplemental experience sampling study with leaders and followers, we further show that daily leader loneliness is negatively related to followers' perceptions of leader effectiveness above and beyond more generalized loneliness. In summary, our work sheds theoretical and empirical light on the complex nature of leader loneliness. (PsycInfo Database Record (c) 2020 APA, all rights reserved).Counterproductive work behavior (CWB) is a topic of considerable importance for organizational scholars and practitioners. Yet, despite a wide-ranging consensus that negative affect (NA) is a precursor to CWB, there is surprisingly little consensus as to whether CWB enactment will subsequently lead to lower or higher levels of NA. That is, scholars disagree as to whether CWB has a reparative (negative) or generative (positive) effect on subsequent NA. We submit that both perspectives have validity, and thus the question should not be whether CWB is associated with lower or higher subsequent levels of NA, but rather for whom. This article is dedicated to answering this question. Drawing from the behavioral concordance model, we position empathy as a moderator of this relationship, such that CWB will be reparative for those with lower levels of empathy and generative for those with higher levels of empathy. Findings across 3 experience-sampling studies support our hypotheses and highlight a number of interesting directions for future research. (PsycInfo Database Record (c) 2020 APA, all rights reserved).Adapting to task changes in work settings frequently calls not only for shifting one's thoughts and behaviors to the new demands, but also for dealing with outdated knowledge and skills. This article focuses on the role of control strategies in task adaptation and reports two experimental studies using an air traffic control simulation task. In both studies (N = 66 and 105 with k = 1,320 and 1,680 observations, respectively), all participants first learned and performed an initial version of the task then received instruction about control strategies, performed an altered version of the task with new execution rules, and finally worked on a memory test. Participants were instructed to either deliberately forget the old rules, remember the old rules, or simply learn the new task (Study 2 only). Results from discontinuous growth curve modeling revealed that the directed forgetting in both studies and the control group in Study 2 showed higher performance in the simulation after the change relative to their performance before the change (transition adaptation). There were no relearning differences between the groups suggesting that these differences persisted throughout the task. However, the memory test at the end of the study revealed that the directed forgetting groups and the learning control group remembered less outdated task execution rules in the memory test after the simulation than the remembering group. The findings suggest that different types of cognitive strategies have costs and benefits. Conceptual and practical implications of these findings are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).In this article, we aim to address 2 important questions (a) Are women less likely than men to occupy network brokerage positions? And if so, (b) what mechanisms may explain their fewer brokerage roles? Study 1, a meta-analysis examining gender differences in network brokerage, analyzed a cumulative sample of 15,743 individuals (69 independent samples) to show that women were less likely to be brokers in both instrumental and expressive networks, which partly explained their lower career success. Study 2, a follow-up study with 2 independent samples of new employees (n = 150 and 245, respectively), examined both structural opportunity (job-based opportunity and workplace discrimination) and individual agency (proactive networking) as potential mechanisms underlying the relationship between gender and network brokerage. Results of these 2 samples consistently show that proactive networking mediated gender's effect on network brokerage that was measured 6 months after the new employees entered their organizations.
Coronavirus disease 2019 (COVID-19) is a disruptive event devastating to the workplace and the global community. Drawing on terror management theory, we develop and test a model that explains how COVID-19-triggered mortality salience influences employees' state anxiety and their responses at and outside work. We conducted an experience sampling method study using employees from an information technology firm in China when COVID-19 was surging there and two experiments using employees from a variety of industries in the United States when it became a new epicenter of the global outbreak. Results from 3 studies largely supported our theoretical hypotheses. Specifically, our research showed that mortality salience concerning COVID-19 was positively related to employees' state anxiety (general anxiety in Study 1 and Study 2 and death-specific anxiety in Study 3). Our studies also found that servant leadership is particularly crucial in guiding employees with state anxiety associated with COVID-19 mortality salience to be engaged in their jobs and to contribute more to the broader community. Our findings offer timely, valuable implications for theory and practice. (PsycInfo Database Record (c) 2020 APA, all rights reserved).Although leaders' daily work is inherently relational, it is possible that leaders can feel lonely and isolated from followers. Integrating theoretical ideas from regulatory loop models of loneliness with evolutionary perspectives of loneliness, we posit that daily leader loneliness (i.e., feelings of isolation stemming from one's followers) may prompt harmful self-perpetuating as well as beneficial self-correcting cycles of loneliness at work via different rumination processes. We expect that leader loneliness will relate to 2 forms of rumination after work-maladaptive affect-focused rumination and adaptive problem-solving pondering. We expect that each form of rumination will hinder or facilitate next-day work engagement and helping, which will then matter for subsequent leader loneliness. In a 10-day experience sampling investigation of 86 leaders, we found that daily leader loneliness exhibits a self-perpetuating pattern via affect-focused rumination because this type of rumination reduces next-day work engagement and helping. At the same time, daily leader loneliness exhibits a self-correcting pattern via problem-solving pondering, as this type of forward-thinking rumination facilitates work engagement and helping the next day. https://www.selleckchem.com/products/beta-aminopropionitrile.html Furthermore, leader self-efficacy enhances the extent to which problem-solving pondering occurs when leaders feel lonely. In a supplemental experience sampling study with leaders and followers, we further show that daily leader loneliness is negatively related to followers' perceptions of leader effectiveness above and beyond more generalized loneliness. In summary, our work sheds theoretical and empirical light on the complex nature of leader loneliness. (PsycInfo Database Record (c) 2020 APA, all rights reserved).Counterproductive work behavior (CWB) is a topic of considerable importance for organizational scholars and practitioners. Yet, despite a wide-ranging consensus that negative affect (NA) is a precursor to CWB, there is surprisingly little consensus as to whether CWB enactment will subsequently lead to lower or higher levels of NA. That is, scholars disagree as to whether CWB has a reparative (negative) or generative (positive) effect on subsequent NA. We submit that both perspectives have validity, and thus the question should not be whether CWB is associated with lower or higher subsequent levels of NA, but rather for whom. This article is dedicated to answering this question. Drawing from the behavioral concordance model, we position empathy as a moderator of this relationship, such that CWB will be reparative for those with lower levels of empathy and generative for those with higher levels of empathy. Findings across 3 experience-sampling studies support our hypotheses and highlight a number of interesting directions for future research. (PsycInfo Database Record (c) 2020 APA, all rights reserved).Adapting to task changes in work settings frequently calls not only for shifting one's thoughts and behaviors to the new demands, but also for dealing with outdated knowledge and skills. This article focuses on the role of control strategies in task adaptation and reports two experimental studies using an air traffic control simulation task. In both studies (N = 66 and 105 with k = 1,320 and 1,680 observations, respectively), all participants first learned and performed an initial version of the task then received instruction about control strategies, performed an altered version of the task with new execution rules, and finally worked on a memory test. Participants were instructed to either deliberately forget the old rules, remember the old rules, or simply learn the new task (Study 2 only). Results from discontinuous growth curve modeling revealed that the directed forgetting in both studies and the control group in Study 2 showed higher performance in the simulation after the change relative to their performance before the change (transition adaptation). There were no relearning differences between the groups suggesting that these differences persisted throughout the task. However, the memory test at the end of the study revealed that the directed forgetting groups and the learning control group remembered less outdated task execution rules in the memory test after the simulation than the remembering group. The findings suggest that different types of cognitive strategies have costs and benefits. Conceptual and practical implications of these findings are discussed. (PsycInfo Database Record (c) 2020 APA, all rights reserved).In this article, we aim to address 2 important questions (a) Are women less likely than men to occupy network brokerage positions? And if so, (b) what mechanisms may explain their fewer brokerage roles? Study 1, a meta-analysis examining gender differences in network brokerage, analyzed a cumulative sample of 15,743 individuals (69 independent samples) to show that women were less likely to be brokers in both instrumental and expressive networks, which partly explained their lower career success. Study 2, a follow-up study with 2 independent samples of new employees (n = 150 and 245, respectively), examined both structural opportunity (job-based opportunity and workplace discrimination) and individual agency (proactive networking) as potential mechanisms underlying the relationship between gender and network brokerage. Results of these 2 samples consistently show that proactive networking mediated gender's effect on network brokerage that was measured 6 months after the new employees entered their organizations.0 Commentarios 0 Acciones 1 Views 0 Vista previa -
Malnutrition in medical and surgical inpatients is an on-going problem. More-2-Eat (M2E) Phase 1 demonstrated that improved detection and treatment of hospital malnutrition could be embedded into routine practice using an intensive researcher-facilitated implementation process. Yet, spreading and sustaining new practices in diverse hospital cultures with minimal researcher support is unknown.
To demonstrate that a scalable model of implementation can increase three key nutrition practices (admission screening; Subjective Global Assessment (SGA); and medication pass (MedPass) of oral nutritional supplement) in diverse acute care hospitals to detect and treat malnutrition in medical and surgical patients.
Ten hospitals participated in this pretest post-test time series implementation study from across Canada, including 21 medical or surgical units (Phase 1 original units (n=4), Phase 1 hospital new units (n=9), Phase 2 new hospitals and units (n=8)). The scalable implementation model included training cha periods (7%-13% of all patients p<0.007). Other care practices significantly increased (e.g. volunteer mealtime assistance).
Nutrition-care activities significantly increased in diverse hospital units with this scalable model. This heralds the transition from implementation research to sustained changes in routine practice. Screening, SGA, and MedPass can all be implemented, improve nutrition care for all patients, spread within an organization, and for the most part, sustained (and in the case of original Phase 1 units, for over 3 years) with champion leadership.
Nutrition-care activities significantly increased in diverse hospital units with this scalable model. This heralds the transition from implementation research to sustained changes in routine practice. Screening, SGA, and MedPass can all be implemented, improve nutrition care for all patients, spread within an organization, and for the most part, sustained (and in the case of original Phase 1 units, for over 3 years) with champion leadership.Clay sand casting generates a large amount of foundry dust (FD), and the presence of coal powder in the FD makes it difficult to recycle and utilize. The landfill of the FD creates a serious environmental pollution and wastes a valuable resource. To improve the above situation, the FD was analyzed and characterized by X-ray fluorescence spectrometer (XRF), X-ray diffraction (XRD) and electron probe microanalyzer (EPMA). An ultrasonic-assisted flotation process was developed for the comprehensive utilization of the FD, and the effects of ultrasonic time on the flotation performance and flotation kinetics were investigated. In addition, the two-stage flotation of the FD was conducted. Obtained results showed that the FD mainly consisted of coal powder and clay minerals, and the coal powder was covered by clay minerals. The separation efficiency of the coal powder and clay minerals can be significantly enhanced by ultrasonic pretreatment, and the optimal ultrasonic time was 30 min. The flotation kinetics analysis results indicated that the first-order model with rectangular distribution was more reasonable for the data fitting of the ultrasonic-assisted flotation. Furthermore, the concentrate and tailings obtained by the two-stage flotation had achieved an acceptable result, favoring the comprehensive utilization of the FD.Little information is available regarding the kinetics, products, and pathways of simultaneous SMX degradation and Cd(II) immobilization from wastewater. In this study, a novel bacterium (Achromobacter sp. L3) with SMX degradation and Cd(II) immobilization capabilities was isolated. The boundary conditions of SMX degradation were as follows initial pH 6-8, temperature 25-30 °C, and SMX concentration 10-40 mg/L-1. The boundary conditions of Cd(II) immobilization were as follows initial pH 7-9, temperature 25-35 °C, and SMX concentration 10-30 mg/L-1. The maximum SMX degradation and Cd(II) removal were 91.98% and 100%, respectively. The SMX degradation and Cd(II) immobilization data fitted well with the pseudo-first-order kinetic model, indicating that the two pollutants conform to the same degradation rule. Moreover, the microbial degradation, sediment adsorption, and intermediates identified in the experiments were used to explore the mechanisms of SMX and Cd(II) removal. These results indicate that microbial removal and sediment adsorption play equally important roles in Cd(II) immobilization; however, microbial degradation plays a decisive role in SMX degradation. Furthermore, the relationship between aerobic denitrification, SMX degradation, and Cd(II) immobilization was proposed. These results may provide valuable insights for treatment of wastewater polluted by antibiotics and heavy metals.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has spread worldwide from epicenter of Wuhan, China since December 2019. The aim of our study was to describe the clinical characteristics and outcome of hospitalized patients with SARS-CoV-2 pneumonia at the Toulouse university hospital, France.
We selected the patients included from March 7, 2020 to April 20, 2020 in the retrolective Covid-clinic-Toul cohort that follows all hospitalized patients with SARS-CoV-2 infection at the Toulouse Hospital. Cases were confirmed by real-time reverse transcriptase polymerase chain reaction. We report demographics, clinical, biological and radiological features, as well as unfavorable outcome at Day 14 after admission (admission in an intensive care unit, mechanical ventilation, death).
Among 263 hospitalized patients, the median age was 65 years and 155 (58.9%) were males. Two hundred and twenty-seven patients (86.3%) had at least one comorbidity. The median time from first symptom to hospital admission was 7.0 days (interquartile range 4-10). On day 14 after admission, 111 patients (42.2%) had been transferred to intensive care unit (ICU), including 50 (19.0%) on Day 1; 61 (23.1%) needed mechanical ventilation and 19 patients (7.2%) had died. https://www.selleckchem.com/products/ipilimumab.html Patients admitted to ICU at Day 1 of admission (n=50) were more frequently men (66.0% vs 57.3%), smokers (25.0% vs 7.1%), with obesity (42.0% vs 24.7%) and had a higher mean level of C-reactive protein (median 110.9mg/L vs 46.2mg/L).
This cohort provides epidemiological data on SARS-CoV-2 in hospitalized patients in a University hospital in the South of France.
This cohort provides epidemiological data on SARS-CoV-2 in hospitalized patients in a University hospital in the South of France.
Malnutrition in medical and surgical inpatients is an on-going problem. More-2-Eat (M2E) Phase 1 demonstrated that improved detection and treatment of hospital malnutrition could be embedded into routine practice using an intensive researcher-facilitated implementation process. Yet, spreading and sustaining new practices in diverse hospital cultures with minimal researcher support is unknown. To demonstrate that a scalable model of implementation can increase three key nutrition practices (admission screening; Subjective Global Assessment (SGA); and medication pass (MedPass) of oral nutritional supplement) in diverse acute care hospitals to detect and treat malnutrition in medical and surgical patients. Ten hospitals participated in this pretest post-test time series implementation study from across Canada, including 21 medical or surgical units (Phase 1 original units (n=4), Phase 1 hospital new units (n=9), Phase 2 new hospitals and units (n=8)). The scalable implementation model included training cha periods (7%-13% of all patients p<0.007). Other care practices significantly increased (e.g. volunteer mealtime assistance). Nutrition-care activities significantly increased in diverse hospital units with this scalable model. This heralds the transition from implementation research to sustained changes in routine practice. Screening, SGA, and MedPass can all be implemented, improve nutrition care for all patients, spread within an organization, and for the most part, sustained (and in the case of original Phase 1 units, for over 3 years) with champion leadership. Nutrition-care activities significantly increased in diverse hospital units with this scalable model. This heralds the transition from implementation research to sustained changes in routine practice. Screening, SGA, and MedPass can all be implemented, improve nutrition care for all patients, spread within an organization, and for the most part, sustained (and in the case of original Phase 1 units, for over 3 years) with champion leadership.Clay sand casting generates a large amount of foundry dust (FD), and the presence of coal powder in the FD makes it difficult to recycle and utilize. The landfill of the FD creates a serious environmental pollution and wastes a valuable resource. To improve the above situation, the FD was analyzed and characterized by X-ray fluorescence spectrometer (XRF), X-ray diffraction (XRD) and electron probe microanalyzer (EPMA). An ultrasonic-assisted flotation process was developed for the comprehensive utilization of the FD, and the effects of ultrasonic time on the flotation performance and flotation kinetics were investigated. In addition, the two-stage flotation of the FD was conducted. Obtained results showed that the FD mainly consisted of coal powder and clay minerals, and the coal powder was covered by clay minerals. The separation efficiency of the coal powder and clay minerals can be significantly enhanced by ultrasonic pretreatment, and the optimal ultrasonic time was 30 min. The flotation kinetics analysis results indicated that the first-order model with rectangular distribution was more reasonable for the data fitting of the ultrasonic-assisted flotation. Furthermore, the concentrate and tailings obtained by the two-stage flotation had achieved an acceptable result, favoring the comprehensive utilization of the FD.Little information is available regarding the kinetics, products, and pathways of simultaneous SMX degradation and Cd(II) immobilization from wastewater. In this study, a novel bacterium (Achromobacter sp. L3) with SMX degradation and Cd(II) immobilization capabilities was isolated. The boundary conditions of SMX degradation were as follows initial pH 6-8, temperature 25-30 °C, and SMX concentration 10-40 mg/L-1. The boundary conditions of Cd(II) immobilization were as follows initial pH 7-9, temperature 25-35 °C, and SMX concentration 10-30 mg/L-1. The maximum SMX degradation and Cd(II) removal were 91.98% and 100%, respectively. The SMX degradation and Cd(II) immobilization data fitted well with the pseudo-first-order kinetic model, indicating that the two pollutants conform to the same degradation rule. Moreover, the microbial degradation, sediment adsorption, and intermediates identified in the experiments were used to explore the mechanisms of SMX and Cd(II) removal. These results indicate that microbial removal and sediment adsorption play equally important roles in Cd(II) immobilization; however, microbial degradation plays a decisive role in SMX degradation. Furthermore, the relationship between aerobic denitrification, SMX degradation, and Cd(II) immobilization was proposed. These results may provide valuable insights for treatment of wastewater polluted by antibiotics and heavy metals. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection has spread worldwide from epicenter of Wuhan, China since December 2019. The aim of our study was to describe the clinical characteristics and outcome of hospitalized patients with SARS-CoV-2 pneumonia at the Toulouse university hospital, France. We selected the patients included from March 7, 2020 to April 20, 2020 in the retrolective Covid-clinic-Toul cohort that follows all hospitalized patients with SARS-CoV-2 infection at the Toulouse Hospital. Cases were confirmed by real-time reverse transcriptase polymerase chain reaction. We report demographics, clinical, biological and radiological features, as well as unfavorable outcome at Day 14 after admission (admission in an intensive care unit, mechanical ventilation, death). Among 263 hospitalized patients, the median age was 65 years and 155 (58.9%) were males. Two hundred and twenty-seven patients (86.3%) had at least one comorbidity. The median time from first symptom to hospital admission was 7.0 days (interquartile range 4-10). On day 14 after admission, 111 patients (42.2%) had been transferred to intensive care unit (ICU), including 50 (19.0%) on Day 1; 61 (23.1%) needed mechanical ventilation and 19 patients (7.2%) had died. https://www.selleckchem.com/products/ipilimumab.html Patients admitted to ICU at Day 1 of admission (n=50) were more frequently men (66.0% vs 57.3%), smokers (25.0% vs 7.1%), with obesity (42.0% vs 24.7%) and had a higher mean level of C-reactive protein (median 110.9mg/L vs 46.2mg/L). This cohort provides epidemiological data on SARS-CoV-2 in hospitalized patients in a University hospital in the South of France. This cohort provides epidemiological data on SARS-CoV-2 in hospitalized patients in a University hospital in the South of France.0 Commentarios 0 Acciones 1 Views 0 Vista previa -
Health facilities should emphasize teaching mothers about home based diarrheal management.
Inadequate personal and environmental hygiene are the major cause of diarrheal disease, which is common among children under five years of age. Diarrhea is not fatal by itself, but it causes dehydration, which can ultimately result in child mortality if not treated. Fortunately, dehydration can be managed at home, which is an opportunity for nurses and health professionals to address this public health problem.
Inadequate personal and environmental hygiene are the major cause of diarrheal disease, which is common among children under five years of age. Diarrhea is not fatal by itself, but it causes dehydration, which can ultimately result in child mortality if not treated. Fortunately, dehydration can be managed at home, which is an opportunity for nurses and health professionals to address this public health problem.
Time-to-surgery in geriatric hip fractures remains of interest. The majority of the literature reports a significantly decreased mortality rate after early surgery. Nevertheless, there are some studies presenting no effect of time-to-surgery on mortality. https://www.selleckchem.com/products/bupivacaine.html The body of literature addressing the effect of an orthogeriatric co-management is growing. Here we investigate the effect of time-to-surgery on in-house mortality in a group of patients treated under the best possible conditions in certified orthogeriatric treatment units.
We conducted a retrospective cohort registry analysis from prospectively collected data of the AltersTraumaRegister DGU®. Data were analyzed univariably, and the association of early surgery with in-house mortality was assessed with multivariable logistic regression while controlling for specified patient characteristics. Additionally, propensity score matching for time-to-surgery was applied to examine its effect on the in-house mortality rate.
A total of 15,099 patients met the in pre-surgery interval, justified by an orthogeriatric treatment team, will not be detrimental to the affected patients.
Our results suggest that for those patients, who were treated in an orthogeriatric co-management under the best possible conditions, there are no significant differences regarding in-house mortality rate between the time-to-surgery intervals of 24 and 48 h or slightly above. This and the comparatively small number of patients who underwent surgery after 24 h show that an extension of the pre-surgery interval, justified by an orthogeriatric treatment team, will not be detrimental to the affected patients.COVID-19 has had profound management implications for orthopaedic management due to balancing patient outcomes with clinical safety and limited resources. The BOAST guidelines on outpatient orthopaedic fracture management took a pragmatic approach. At Great Western Hospital, Swindon, a closed loop audit was performed looking at a selection of these guidelines, to assess if our initial changes were sufficient and what could be improved.
An audit was designed around fracture immobilisation, type of initial fracture clinic assessment, default virtual follow up clinic and late imaging. Interventions were implemented and re-audited.
Initially 223 patients were identified over 4 weeks. Of these, 100% had removable casts and 99% did not have late imaging. 96% of patients were initially assessed virtually or had initial orthopaedic approval to be seen in face to face clinic. 97% had virtual follow up or had documented reasons why not. The 26 patients who were initially seen face to face were put through a simulated virtual fracture clinic. 22 appointments and 13 Xray attendances could have been avoided. We implemented a change of requiring all patients to be assessed at consultant level before having a face to face appointment. The re-audit showed over 99% achievement in all areas.
Virtual fracture clinics, both triaging new patients and follow-up clinics have dramatically changed our outpatient management, helping the most appropriate patients to be seen face to face. Despite their limitations, they have been well tolerated by patients and improved patient safety and treatment.
Virtual fracture clinics, both triaging new patients and follow-up clinics have dramatically changed our outpatient management, helping the most appropriate patients to be seen face to face. Despite their limitations, they have been well tolerated by patients and improved patient safety and treatment.
Scapular body fractures represent less than 1% of all skeletal fractures. Operative criteria and risk factors for scapular fracture instability are well defined. Non-operative management of scapular body fractures show satisfactory results but with shortening and medialization of the scapular body. The aim of this study is to evaluate if surgical treatment will result in an improved quality of life and shoulder function compared to non-operative treatment on patients suffering from a scapular body fracture.
From a total of 381 retrospectively identified scapular body fractures, we included 45 patients. The enrolled patients were divided into two groups the surgical treatment (ST, n=20) group and the non-operative treatment (NOT, n=25) group. The Non-Union Scoring System (NUSS) was used to assess bone healing on radiographs. The functional evaluation of the two groups during the follow-up were performed using the Constant Shoulder Score (CSS) and the Quick Disabilities of the Arm, Shoulder and Hand Score (QuickDASH). Complications, reoperation rates, and time until bony union were also documented. The minimum follow-up for this study was designated as 12 months.
The ST group had better mean CSS and QuickDASH scores compared to the NOT group at 1, 3 and 6 months of follow-up. No statistically significant difference was detected at 12 months follow-up. ST group also demonstrated improved results in time until bone union, reduction of rehabilitation time, complications and return to work rates.
This study suggests that surgical treatment for extraarticular scapular fractures can achieve better short-term functional outcomes (3 to 6 months) compared to conservative treatment.
This study suggests that surgical treatment for extraarticular scapular fractures can achieve better short-term functional outcomes (3 to 6 months) compared to conservative treatment.
Health facilities should emphasize teaching mothers about home based diarrheal management. Inadequate personal and environmental hygiene are the major cause of diarrheal disease, which is common among children under five years of age. Diarrhea is not fatal by itself, but it causes dehydration, which can ultimately result in child mortality if not treated. Fortunately, dehydration can be managed at home, which is an opportunity for nurses and health professionals to address this public health problem. Inadequate personal and environmental hygiene are the major cause of diarrheal disease, which is common among children under five years of age. Diarrhea is not fatal by itself, but it causes dehydration, which can ultimately result in child mortality if not treated. Fortunately, dehydration can be managed at home, which is an opportunity for nurses and health professionals to address this public health problem. Time-to-surgery in geriatric hip fractures remains of interest. The majority of the literature reports a significantly decreased mortality rate after early surgery. Nevertheless, there are some studies presenting no effect of time-to-surgery on mortality. https://www.selleckchem.com/products/bupivacaine.html The body of literature addressing the effect of an orthogeriatric co-management is growing. Here we investigate the effect of time-to-surgery on in-house mortality in a group of patients treated under the best possible conditions in certified orthogeriatric treatment units. We conducted a retrospective cohort registry analysis from prospectively collected data of the AltersTraumaRegister DGU®. Data were analyzed univariably, and the association of early surgery with in-house mortality was assessed with multivariable logistic regression while controlling for specified patient characteristics. Additionally, propensity score matching for time-to-surgery was applied to examine its effect on the in-house mortality rate. A total of 15,099 patients met the in pre-surgery interval, justified by an orthogeriatric treatment team, will not be detrimental to the affected patients. Our results suggest that for those patients, who were treated in an orthogeriatric co-management under the best possible conditions, there are no significant differences regarding in-house mortality rate between the time-to-surgery intervals of 24 and 48 h or slightly above. This and the comparatively small number of patients who underwent surgery after 24 h show that an extension of the pre-surgery interval, justified by an orthogeriatric treatment team, will not be detrimental to the affected patients.COVID-19 has had profound management implications for orthopaedic management due to balancing patient outcomes with clinical safety and limited resources. The BOAST guidelines on outpatient orthopaedic fracture management took a pragmatic approach. At Great Western Hospital, Swindon, a closed loop audit was performed looking at a selection of these guidelines, to assess if our initial changes were sufficient and what could be improved. An audit was designed around fracture immobilisation, type of initial fracture clinic assessment, default virtual follow up clinic and late imaging. Interventions were implemented and re-audited. Initially 223 patients were identified over 4 weeks. Of these, 100% had removable casts and 99% did not have late imaging. 96% of patients were initially assessed virtually or had initial orthopaedic approval to be seen in face to face clinic. 97% had virtual follow up or had documented reasons why not. The 26 patients who were initially seen face to face were put through a simulated virtual fracture clinic. 22 appointments and 13 Xray attendances could have been avoided. We implemented a change of requiring all patients to be assessed at consultant level before having a face to face appointment. The re-audit showed over 99% achievement in all areas. Virtual fracture clinics, both triaging new patients and follow-up clinics have dramatically changed our outpatient management, helping the most appropriate patients to be seen face to face. Despite their limitations, they have been well tolerated by patients and improved patient safety and treatment. Virtual fracture clinics, both triaging new patients and follow-up clinics have dramatically changed our outpatient management, helping the most appropriate patients to be seen face to face. Despite their limitations, they have been well tolerated by patients and improved patient safety and treatment. Scapular body fractures represent less than 1% of all skeletal fractures. Operative criteria and risk factors for scapular fracture instability are well defined. Non-operative management of scapular body fractures show satisfactory results but with shortening and medialization of the scapular body. The aim of this study is to evaluate if surgical treatment will result in an improved quality of life and shoulder function compared to non-operative treatment on patients suffering from a scapular body fracture. From a total of 381 retrospectively identified scapular body fractures, we included 45 patients. The enrolled patients were divided into two groups the surgical treatment (ST, n=20) group and the non-operative treatment (NOT, n=25) group. The Non-Union Scoring System (NUSS) was used to assess bone healing on radiographs. The functional evaluation of the two groups during the follow-up were performed using the Constant Shoulder Score (CSS) and the Quick Disabilities of the Arm, Shoulder and Hand Score (QuickDASH). Complications, reoperation rates, and time until bony union were also documented. The minimum follow-up for this study was designated as 12 months. The ST group had better mean CSS and QuickDASH scores compared to the NOT group at 1, 3 and 6 months of follow-up. No statistically significant difference was detected at 12 months follow-up. ST group also demonstrated improved results in time until bone union, reduction of rehabilitation time, complications and return to work rates. This study suggests that surgical treatment for extraarticular scapular fractures can achieve better short-term functional outcomes (3 to 6 months) compared to conservative treatment. This study suggests that surgical treatment for extraarticular scapular fractures can achieve better short-term functional outcomes (3 to 6 months) compared to conservative treatment.0 Commentarios 0 Acciones 2 Views 0 Vista previa -
Moyamoya disease (MMD), a rare cause of pediatric stroke, is a cerebrovascular occlusive disorder resulting from progressive stenosis of the distal intracranial carotid arteries and their proximal branches. In response to brain ischemia, there is the development of basal collateral vessels, which gives rise to the characteristic angiographic appearance of moyamoya (puff of smoke). If left untreated, the disease can result in overwhelming permanent neurological and cognitive deficits. Whereas MMD refers to the idiopathic form, moyamoya syndrome refers to the condition in which children with moyamoya also have a recognized clinical disorder. The classic pediatric presentation in moyamoya is recurrent transient ischemic attacks (TIAs) and/or completed/repeated ischemic strokes. Surgical revascularization, including direct and indirect techniques, remains the mainstay of treatment and has been shown to improve long-term outcome in children with MMD. Various risk factors identified for perioperative complications are as follows history of TIAs, severity of disease, intraoperative hypotension, hypercapnia and hypovolemia, and substantial reduction in hematocrit intraoperatively. Thus, providing perianesthetic care to pediatric patients undergoing revascularization procedure for MMD is like walking a tightrope, and we present two such cases handled successfully. Copyright © 2020 Brain Circulation.INTRODUCTION The goal of this study was to assess if a neurological disorder ultrasound workshop for the first-year medical students significantly enhanced the students' ability to retain and apply concepts related to neuroanatomy and neurophysiology. MATERIALS AND METHODS We performed a prospective study to evaluate student performance before and after an optional ultrasound workshop. Data were collected through a within-population pretest-posttest design. Purposive sampling was used to recruit first-year medical students for this study. The six stations were transcranial doppler ultrasound, ocular ultrasound, ultrasound-guided external ventricular drain placement, high-intensity focused ultrasound for brain lesions, carotid artery scan with ultrasound, and ultrasound-guided central line placement. We used a pre-post workshop survey to identify opinions and perceptions about ultrasound and a pre-post workshop test to assess knowledge about neuroanatomy, neurophysiology, and related ultrasound topics. RESULTS Twenty-two 22 first-year medical students consented to participate in this study. The Wilcoxon signed-rank test showed a statistically significant difference in pre- and posttest scores, suggesting that participants demonstrated higher levels of medical knowledge related to neurological physiology, anatomy, and ultrasound after participating in the workshop. The analysis of the pre-post survey showed participants attributed greater value to ultrasound as a useful tool for their future medical practice after participation in the event (Z = -2.45, P = 0.014). CONCLUSIONS There is value in integrating experiences with ultrasound into the neurological disorder block of medical school. Future studies, with a larger sample size, are needed to further explore the efficacy of this workshop in enhancing knowledge retention. Copyright © 2020 Brain Circulation.OBJECTIVE Incomplete circle of Willis (***) configuration is an important risk factor for cerebrovascular pathology, namely aneurysm formation and ischemic stroke. This study was performed to characterize *** variation using digital subtraction angiography and to identify demographic and physiologic features that may influence the risk of having an incomplete *** configuration. MATERIALS AND METHODS A retrospective review of 274 patients who underwent cerebral angiography by a single surgeon for any indication was conducted. Each *** branch was graded as normal, hypoplastic, or aplastic. https://www.selleckchem.com/products/cetuximab.html Univariate and multivariate regression analyses were conducted to assess the impact of age, gender, race, and certain comorbidities on *** configuration. RESULTS A complete *** was identified in 37.23% of patients. In univariate analysis, patients less then 40 years old were more likely to have a complete *** (odds ratio [OR] 4.973, 95% confidence interval [CI] 2.610-9.476, P less then 0.001) as were patients less then 70 years old (OR 2.849, 95% CI 1.131-7.194, P less then 0.05). Univariate analysis on demographic factors and comorbidities revealed *** completeness to decrease with hypertension (OR 0.575, 95% CI 0.347-0.951, P = 0.031) and diabetes mellitus (OR 0.368, 95% CI 0.180-0.754, P = 0.006). Multivariable logistic regression analysis used to assess the impact of age on *** completeness showed age to be an independent predictor of complete ***, with an inverse correlation between increasing age and *** completeness (OR 0.955, 95% CI 0.937-0.973, P less then 0.001) after controlling for potential confounders including hypertension and diabetes mellitus. CONCLUSIONS *** configuration shows considerable variation with age; however, further investigation is required to elucidate the full impact of other demographic and vascular risk factors on *** anatomy. Copyright © 2020 Brain Circulation.INTRODUCTION Diabetes complications in Sudan were increasing at an alarming rate. The aim of this study was to assess the prevalence of stroke among Sudanese individuals with diabetes. METHODOLOGY This cross-sectional study recruited 283 individuals with diabetes from three diabetes centers in Sudan. Data were collected using a standardized pretested questionnaire, and data were analyzed using Chi-square and logistic regression analysis. RESULTS The average age of participants was 51 (±12 standard deviation) and 35% were aged between 51 and 60 years. Females were 66.8%, and most of the participants (73.9%) were from urban areas and 66.1% received formal education between primary school and university. Body mass index (BMI) classification showed that 34.3% were obese, 31.8% overweight, and 30.4% normal BMI. Diabetes for 1-5 years were observed in 71.7% and for more than 10 years (12%). The majority, i.e., 94.3% had type 2 diabetes mellitus while only 5.7% had type 1. Only one-third of the participants were able to achieve glycosylated hemoglobin (HbA1c) target for diabetes control.
Moyamoya disease (MMD), a rare cause of pediatric stroke, is a cerebrovascular occlusive disorder resulting from progressive stenosis of the distal intracranial carotid arteries and their proximal branches. In response to brain ischemia, there is the development of basal collateral vessels, which gives rise to the characteristic angiographic appearance of moyamoya (puff of smoke). If left untreated, the disease can result in overwhelming permanent neurological and cognitive deficits. Whereas MMD refers to the idiopathic form, moyamoya syndrome refers to the condition in which children with moyamoya also have a recognized clinical disorder. The classic pediatric presentation in moyamoya is recurrent transient ischemic attacks (TIAs) and/or completed/repeated ischemic strokes. Surgical revascularization, including direct and indirect techniques, remains the mainstay of treatment and has been shown to improve long-term outcome in children with MMD. Various risk factors identified for perioperative complications are as follows history of TIAs, severity of disease, intraoperative hypotension, hypercapnia and hypovolemia, and substantial reduction in hematocrit intraoperatively. Thus, providing perianesthetic care to pediatric patients undergoing revascularization procedure for MMD is like walking a tightrope, and we present two such cases handled successfully. Copyright © 2020 Brain Circulation.INTRODUCTION The goal of this study was to assess if a neurological disorder ultrasound workshop for the first-year medical students significantly enhanced the students' ability to retain and apply concepts related to neuroanatomy and neurophysiology. MATERIALS AND METHODS We performed a prospective study to evaluate student performance before and after an optional ultrasound workshop. Data were collected through a within-population pretest-posttest design. Purposive sampling was used to recruit first-year medical students for this study. The six stations were transcranial doppler ultrasound, ocular ultrasound, ultrasound-guided external ventricular drain placement, high-intensity focused ultrasound for brain lesions, carotid artery scan with ultrasound, and ultrasound-guided central line placement. We used a pre-post workshop survey to identify opinions and perceptions about ultrasound and a pre-post workshop test to assess knowledge about neuroanatomy, neurophysiology, and related ultrasound topics. RESULTS Twenty-two 22 first-year medical students consented to participate in this study. The Wilcoxon signed-rank test showed a statistically significant difference in pre- and posttest scores, suggesting that participants demonstrated higher levels of medical knowledge related to neurological physiology, anatomy, and ultrasound after participating in the workshop. The analysis of the pre-post survey showed participants attributed greater value to ultrasound as a useful tool for their future medical practice after participation in the event (Z = -2.45, P = 0.014). CONCLUSIONS There is value in integrating experiences with ultrasound into the neurological disorder block of medical school. Future studies, with a larger sample size, are needed to further explore the efficacy of this workshop in enhancing knowledge retention. Copyright © 2020 Brain Circulation.OBJECTIVE Incomplete circle of Willis (CoW) configuration is an important risk factor for cerebrovascular pathology, namely aneurysm formation and ischemic stroke. This study was performed to characterize CoW variation using digital subtraction angiography and to identify demographic and physiologic features that may influence the risk of having an incomplete CoW configuration. MATERIALS AND METHODS A retrospective review of 274 patients who underwent cerebral angiography by a single surgeon for any indication was conducted. Each CoW branch was graded as normal, hypoplastic, or aplastic. https://www.selleckchem.com/products/cetuximab.html Univariate and multivariate regression analyses were conducted to assess the impact of age, gender, race, and certain comorbidities on CoW configuration. RESULTS A complete CoW was identified in 37.23% of patients. In univariate analysis, patients less then 40 years old were more likely to have a complete CoW (odds ratio [OR] 4.973, 95% confidence interval [CI] 2.610-9.476, P less then 0.001) as were patients less then 70 years old (OR 2.849, 95% CI 1.131-7.194, P less then 0.05). Univariate analysis on demographic factors and comorbidities revealed CoW completeness to decrease with hypertension (OR 0.575, 95% CI 0.347-0.951, P = 0.031) and diabetes mellitus (OR 0.368, 95% CI 0.180-0.754, P = 0.006). Multivariable logistic regression analysis used to assess the impact of age on CoW completeness showed age to be an independent predictor of complete CoW, with an inverse correlation between increasing age and CoW completeness (OR 0.955, 95% CI 0.937-0.973, P less then 0.001) after controlling for potential confounders including hypertension and diabetes mellitus. CONCLUSIONS CoW configuration shows considerable variation with age; however, further investigation is required to elucidate the full impact of other demographic and vascular risk factors on CoW anatomy. Copyright © 2020 Brain Circulation.INTRODUCTION Diabetes complications in Sudan were increasing at an alarming rate. The aim of this study was to assess the prevalence of stroke among Sudanese individuals with diabetes. METHODOLOGY This cross-sectional study recruited 283 individuals with diabetes from three diabetes centers in Sudan. Data were collected using a standardized pretested questionnaire, and data were analyzed using Chi-square and logistic regression analysis. RESULTS The average age of participants was 51 (±12 standard deviation) and 35% were aged between 51 and 60 years. Females were 66.8%, and most of the participants (73.9%) were from urban areas and 66.1% received formal education between primary school and university. Body mass index (BMI) classification showed that 34.3% were obese, 31.8% overweight, and 30.4% normal BMI. Diabetes for 1-5 years were observed in 71.7% and for more than 10 years (12%). The majority, i.e., 94.3% had type 2 diabetes mellitus while only 5.7% had type 1. Only one-third of the participants were able to achieve glycosylated hemoglobin (HbA1c) target for diabetes control.0 Commentarios 0 Acciones 7 Views 0 Vista previa -
Trials evaluating the combinatorial effect of immune checkpoint inhibitors and anti-RANKL treatment in double-positive (RANK+/ERBB2+) patients are encouraging.The spacecraft tracking telemetering and command (TT&C) system plays an essential role in celestial and terrestrial networks, requiring relative ranging and communication, particularly in satellite formation flying networks and distributed spacecraft networks. To achieve precious ranging and high-data-rate communication in a Master/Slave satellite architecture, an integrated communication-ranging system (ICRS) is introduced. ICRS is based on the inter-satellite spread spectrum ranging and spread/non-spread spectrum communication modulated by unbalanced quadrature phase shift keying (UQPSK). In both uplink and downlink, the in-phase (I) branches and the quadrature (Q) branches undertake the tasks of ranging and communication, respectively. In addition, a global navigation satellite system (GNSS) like signal is adopted in I branches for the sake of better ranging accuracy, and binary phase shift keying (BPSK) modulation is employed in Q branches for a higher data rate. Therefore, the key point of the ICRS design is the power resource allocation between two branches via the selection of a suitable power distribution factor (PWDF). Simulation results demonstrate the good performance of the proposed approach in ranging error and bit error rate (BER). In addition, a reasonable PWDF is recommended. Furthermore, the influence of clock offset is also taken into consideration.Impetigo (school sores), a superficial skin infection commonly seen in children, is caused by the gram-positive bacteria Staphylococcus aureus and/or Streptococcus pyogenes. Antibiotic treatments, often topical, are used as the first-line therapy for impetigo. The efficacy of potential new antimicrobial compounds is first tested in in vitro studies and, if effective, followed by in vivo studies using animal models and/or humans. Animal models are critical means for investigating potential therapeutics and characterizing their safety profile prior to human trials. Although several reviews of animal models for skin infections have been published, there is a lack of a comprehensive review of animal models simulating impetigo for the selection of therapeutic drug candidates. This review critically examines the existing animal models for impetigo and their feasibility for testing the in vivo efficacy of topical treatments for impetigo and other superficial bacterial skin infections.Macronutrients represent risk factors for hyperlipidemia or diabetes. Lipid alterations and type 2 diabetes mellitus are global health problems. Overexpression of sterol regulatory element-binding factor (Srebf2) in transgenic animals is linked to elevated cholesterol levels and diabetes development. We investigated the impact of increased Srebf2 locus expression and the effects of control and high-fat, high-sucrose (HFHS) diets on body weight, glucose and lipid metabolisms in transgenic **** (S-****). Wild type (WT) and S-**** were fed with both diets for 16 weeks. Plasma glucose, insulin and lipids were assessed (n = 25). Immunostainings were performed in liver, pancreas and fat (N = 10). Expression of Ldlr and Hmgcr in liver was performed by RT-PCR (N = 8). Control diet S-**** showed reduced weight, insulin, total and HDL cholesterol and triglycerides (TG). HFHS diet widened differences in weight, total and HDL cholesterol, insulin and HOMA index but increased TG in S-****. In S-****, adipocyte size was lower while HFHS diet produced lower increase, pancreatic β-cell mass was lower with both diets and Srebf2, Ldlr and Hmgcr mRNA levels were higher while HFHS diet produced a rise in Srebf2 and Hmgcr levels. Srebf2 complete gene overexpression seems to have beneficial effects on metabolic parameters and to protect against HFHS diet effects.A series of silica-supported polymeric ionic liquid (PIL)-based stationary phases derived from a vinylic L-valine ionic liquid monomer and divinylbenzene (DVB) as the crosslinking agent have been prepared and studied as gas chromatographic stationary phases. These coated gas chromatographic columns exhibited good thermal stabilities (230-300 °C) and high efficiencies (1700-2700 plates/m), and were characterized using a linear solvation parameter model in order to understand the effects of the amount of DVB on the features of the resulting composite systems. Their retention behavior and separation efficiencies were demonstrated using the Grob test. By tuning the crosslinking degree for the IL-derived stationary phase, the separation selectivity and resolution of different compounds were improved. The different retention behaviors observed for many analytes indicate that these stationary phases may be applicable as new types of GC stationary phases.Background Patients on total parenteral nutrition (TPN) are at risk of developing central line-associated infections. Specifically, Staphylococcus aureus bacteremia (SAB) is feared for its high complication rates. This prospective cohort study compares characteristics, clinical course and outcome of SAB in patients with and without TPN support. Methods Clinical and microbiological data from all patients with positive blood cultures for S. aureus from two facilities, including our referral center for TPN support, were retrieved (period 2013-2020). Primary outcome was overall mortality, and included survival analysis using a multivariate Cox regression model. Secondary outcomes comprised a comparison of clinical characteristics and outcomes between both patient groups and analysis of factors associated with complicated outcome (e.g., endocarditis, deep-seated foci, relapse and death) in patients on TPN specifically. Results A total of 620 SAB cases were analyzed, of which 53 cases received TPN at the moment the blood culture was taken. https://www.selleckchem.com/products/protac-tubulin-degrader-1.html Patients in the TPN group were more frequently female, younger and had less comorbidity (p less then 0.001). In-hospital death and overall mortality were significantly lower in TPN patients (4% vs. 18%, p = 0.004 and 10% vs. 34%, p less then 0.001, respectively). Positive follow-up blood cultures, delayed onset of therapy and previous catheter problems were associated with a higher incidence of complicated SAB outcome in patients on TPN. Conclusion Our data show that patients on TPN have a milder course of SAB with lower mortality rates compared to non-TPN SAB patients.
Trials evaluating the combinatorial effect of immune checkpoint inhibitors and anti-RANKL treatment in double-positive (RANK+/ERBB2+) patients are encouraging.The spacecraft tracking telemetering and command (TT&C) system plays an essential role in celestial and terrestrial networks, requiring relative ranging and communication, particularly in satellite formation flying networks and distributed spacecraft networks. To achieve precious ranging and high-data-rate communication in a Master/Slave satellite architecture, an integrated communication-ranging system (ICRS) is introduced. ICRS is based on the inter-satellite spread spectrum ranging and spread/non-spread spectrum communication modulated by unbalanced quadrature phase shift keying (UQPSK). In both uplink and downlink, the in-phase (I) branches and the quadrature (Q) branches undertake the tasks of ranging and communication, respectively. In addition, a global navigation satellite system (GNSS) like signal is adopted in I branches for the sake of better ranging accuracy, and binary phase shift keying (BPSK) modulation is employed in Q branches for a higher data rate. Therefore, the key point of the ICRS design is the power resource allocation between two branches via the selection of a suitable power distribution factor (PWDF). Simulation results demonstrate the good performance of the proposed approach in ranging error and bit error rate (BER). In addition, a reasonable PWDF is recommended. Furthermore, the influence of clock offset is also taken into consideration.Impetigo (school sores), a superficial skin infection commonly seen in children, is caused by the gram-positive bacteria Staphylococcus aureus and/or Streptococcus pyogenes. Antibiotic treatments, often topical, are used as the first-line therapy for impetigo. The efficacy of potential new antimicrobial compounds is first tested in in vitro studies and, if effective, followed by in vivo studies using animal models and/or humans. Animal models are critical means for investigating potential therapeutics and characterizing their safety profile prior to human trials. Although several reviews of animal models for skin infections have been published, there is a lack of a comprehensive review of animal models simulating impetigo for the selection of therapeutic drug candidates. This review critically examines the existing animal models for impetigo and their feasibility for testing the in vivo efficacy of topical treatments for impetigo and other superficial bacterial skin infections.Macronutrients represent risk factors for hyperlipidemia or diabetes. Lipid alterations and type 2 diabetes mellitus are global health problems. Overexpression of sterol regulatory element-binding factor (Srebf2) in transgenic animals is linked to elevated cholesterol levels and diabetes development. We investigated the impact of increased Srebf2 locus expression and the effects of control and high-fat, high-sucrose (HFHS) diets on body weight, glucose and lipid metabolisms in transgenic mice (S-mice). Wild type (WT) and S-mice were fed with both diets for 16 weeks. Plasma glucose, insulin and lipids were assessed (n = 25). Immunostainings were performed in liver, pancreas and fat (N = 10). Expression of Ldlr and Hmgcr in liver was performed by RT-PCR (N = 8). Control diet S-mice showed reduced weight, insulin, total and HDL cholesterol and triglycerides (TG). HFHS diet widened differences in weight, total and HDL cholesterol, insulin and HOMA index but increased TG in S-mice. In S-mice, adipocyte size was lower while HFHS diet produced lower increase, pancreatic β-cell mass was lower with both diets and Srebf2, Ldlr and Hmgcr mRNA levels were higher while HFHS diet produced a rise in Srebf2 and Hmgcr levels. Srebf2 complete gene overexpression seems to have beneficial effects on metabolic parameters and to protect against HFHS diet effects.A series of silica-supported polymeric ionic liquid (PIL)-based stationary phases derived from a vinylic L-valine ionic liquid monomer and divinylbenzene (DVB) as the crosslinking agent have been prepared and studied as gas chromatographic stationary phases. These coated gas chromatographic columns exhibited good thermal stabilities (230-300 °C) and high efficiencies (1700-2700 plates/m), and were characterized using a linear solvation parameter model in order to understand the effects of the amount of DVB on the features of the resulting composite systems. Their retention behavior and separation efficiencies were demonstrated using the Grob test. By tuning the crosslinking degree for the IL-derived stationary phase, the separation selectivity and resolution of different compounds were improved. The different retention behaviors observed for many analytes indicate that these stationary phases may be applicable as new types of GC stationary phases.Background Patients on total parenteral nutrition (TPN) are at risk of developing central line-associated infections. Specifically, Staphylococcus aureus bacteremia (SAB) is feared for its high complication rates. This prospective cohort study compares characteristics, clinical course and outcome of SAB in patients with and without TPN support. Methods Clinical and microbiological data from all patients with positive blood cultures for S. aureus from two facilities, including our referral center for TPN support, were retrieved (period 2013-2020). Primary outcome was overall mortality, and included survival analysis using a multivariate Cox regression model. Secondary outcomes comprised a comparison of clinical characteristics and outcomes between both patient groups and analysis of factors associated with complicated outcome (e.g., endocarditis, deep-seated foci, relapse and death) in patients on TPN specifically. Results A total of 620 SAB cases were analyzed, of which 53 cases received TPN at the moment the blood culture was taken. https://www.selleckchem.com/products/protac-tubulin-degrader-1.html Patients in the TPN group were more frequently female, younger and had less comorbidity (p less then 0.001). In-hospital death and overall mortality were significantly lower in TPN patients (4% vs. 18%, p = 0.004 and 10% vs. 34%, p less then 0.001, respectively). Positive follow-up blood cultures, delayed onset of therapy and previous catheter problems were associated with a higher incidence of complicated SAB outcome in patients on TPN. Conclusion Our data show that patients on TPN have a milder course of SAB with lower mortality rates compared to non-TPN SAB patients.0 Commentarios 0 Acciones 15 Views 0 Vista previa
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