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  • Objective The early diagnosis of Turner syndrome (TS) is often difficult because of the various clinical features. This study aimed to investigate clinical features and identify associated abnormalities in a group of patients with TS. Methods Retrospective data of presenting clinical features collected from the medical records of the 37 patients with TS. All patients were examined for associated clinical abnormalities. Results Mean age at diagnosis was 9.3±4.1 years. The main reason for referral was short stature and/or delayed puberty. All of the patients had at least one dysmorphic sign. Skeletal system abnormalities (57%) were the most common associated abnormality, which was followed by gastrointestinal system problems (40%). Cardiac defects occurred in 32%. Urinary system abnormalities occurred in 27%. Dermatological problems were detected in 32% of the patients. The pathology of the hearing was found in 19%. Autoimmune thyroid disease was detected in 24% of the patients, and celiac disease was detected in 5.4% of the patients. Conclusion Phenotypic variability often leads to a delay in the diagnosis of TS. Early diagnosis can initiate effective management in patients with TS.Objective Invasive fungal infections (IFI) are important and trending causes of mortality in patients with acute leukemia, especially during the remission induction. Methods In this study, 225 patients who were diagnosed with acute myeloid leukemia (AML) and undergoing intensive treatment for remission induction were enrolled in a retrospective manner. Results Within the whole group, which consisted of 225 patients, 90 patients received prophylactic antifungal treatment (PAT) (40%), while 135 patients did not (60%) receive. The mean cost of hospitalization was 9.151,6 (2.872,6-20.483,3) US dollars. Gender distribution and mean ages of groups were similar. One hundred fourteen patients not on PAT (84.4%) and five patients on PAT (5.5%) received intravenous antifungal treatment. Thirty-two of the patients who were not on PAT (23.7%) and 11 of the patients on PAT died during remission induction (12.22%). The mean day of the hospitalization was 22.61 days for the patients on PAT and 33.89 days for the patients who were not on PAT. In patients on PAT, the mean number of transfused platelet units was six (0-9), while 12.51 (4-43) units for patients who were not on PAT. Conclusion In our study, the oral suspension form of posaconazole was observed to be cost-effective to prevent IFI with a significant decrease in mortality during remission induction treatment.Objective The frequency of Cushing's disease (CD), ACTH-independent Cushing's syndrome (CS) and autonomous cortisol secretion (ACS) in patients with obesity is not well known. Therefore, in the present study, we aimed to assess the frequency of CD, CS and ACS among the patients with obesity. Methods This study included 813 patients (683 female, mean age 46.47±14.23 yr; mean body mass index (BMI) 37.31±6.50 kg/m2). Patients with obesity were classified further to stages 1, 2, and 3, according to BMI. All patients underwent a low dose dexamethasone suppression test (LDDST). The patients with CD, CS, and ACS and patients with simple obesity were compared concerning gender, age, type-2 diabetes, hypertension (HT) and hyperlipidemia (HL). Results Forty-four (5.4%) out of 813 patients were diagnosed as CD, CS or ACS. CD, CS, and ACS were diagnosed in four (0.4%), two (0.2%), and 33 (4%) patients, respectively. When patients with CD, CS and ACS were compared to the patients with simple obesity, older age at diagnosis, the presence of stage-1 obesity, the presence of HT, and uncontrolled type-2 diabetes were more frequent in patients with CD, CS and ACS (p=0.001, p=0.007, p=0.004, and p=0.0026, respectively). Conclusion The frequency of CD, CS, and ACS is high among patients with obesity. Screening for CD, CS, and ACS in patients with stage-I obesity who are older than 50 years of age with uncontrolled type-2 diabetes and HT may be a reasonable approach.Objective Coronavirus Disease 2019 (COVID-19), named the etiological agent of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has recently emerged in Wuhan City, Hubei Province, China, in December 2019. Kazakhstan's border proximity to China has led to preventive measures in the country since January. This study aims to evaluate the epidemiologic characters of the first recorded cases in Kazakhstan. Methods Here, we reviewed the preparedness of the infection control and prevention procedures in Kazakhstan and evaluated the epidemiological characters of confirmed cases in Kazakhstan. The data for COVID-19 cases recorded from March 13 to April 6, 2020, were obtained from the Sanitary Epidemiological Service. https://www.selleckchem.com/products/beta-glycerophosphate-sodium-salt-hydrate.html Age, gender and their living place were recorded. The severity of infection, geographical distribution, gender and age group of cases were analyzed. Results Four phases of preventive measures used in respiratory infections have been implemented in Kazakhstan since January 6, 2020. The first case was recorded on March 13. During the period of March 13 and April 06, 629 cases with COVID-19 were recorded in Kazakhstan. Of these, 45 patients recovered, six had resulted in death; 535 (85%) of cases were mild and/or asymptomatic, 72 (11.5%) - moderate, 22 (3.5%) - severe. Of these, 7.5% of the cases were registered as children and course was mild. Conclusion The cases are increasing in Kazakhstan as seen in other countries. Currently, the strict implication of respiratory infection control measurement in public and health care services are still very important.Objective Turkey is one of the latest countries that COVID-19 disease was reported, with the first case on March 11, 2020, and since then, Istanbul became the epicenter of the pandemic in Turkey. Here, we reveal sequences of the virus isolated from three different patients with various clinical presentations. Methods Nasopharyngeal swab specimens of the patients were tested positive for the COVID-19 by qRT-PCR. Viral RNA extraction was performed from the same swab samples. Amplicon based libraries were prepared and sequenced using the Illumina NextSeq platform. Raw sequencing data were processed for variant calling and generating near-complete genome sequences. All three genomes were evaluated and compared with other worldwide isolates. Results The patients showed various clinics (an asymptomatic patient, patient with mild disease, and with severe pulmonary infiltration). Amplicon-based next-generation sequencing approach successfully applied to generate near-complete genomes with an average depth of 2.616. All three viral genomes carried the D614G variant (G clade according to GISAID classification) with implications for the origin of a spread first through China to Europe then to Istanbul.
    Objective The early diagnosis of Turner syndrome (TS) is often difficult because of the various clinical features. This study aimed to investigate clinical features and identify associated abnormalities in a group of patients with TS. Methods Retrospective data of presenting clinical features collected from the medical records of the 37 patients with TS. All patients were examined for associated clinical abnormalities. Results Mean age at diagnosis was 9.3±4.1 years. The main reason for referral was short stature and/or delayed puberty. All of the patients had at least one dysmorphic sign. Skeletal system abnormalities (57%) were the most common associated abnormality, which was followed by gastrointestinal system problems (40%). Cardiac defects occurred in 32%. Urinary system abnormalities occurred in 27%. Dermatological problems were detected in 32% of the patients. The pathology of the hearing was found in 19%. Autoimmune thyroid disease was detected in 24% of the patients, and celiac disease was detected in 5.4% of the patients. Conclusion Phenotypic variability often leads to a delay in the diagnosis of TS. Early diagnosis can initiate effective management in patients with TS.Objective Invasive fungal infections (IFI) are important and trending causes of mortality in patients with acute leukemia, especially during the remission induction. Methods In this study, 225 patients who were diagnosed with acute myeloid leukemia (AML) and undergoing intensive treatment for remission induction were enrolled in a retrospective manner. Results Within the whole group, which consisted of 225 patients, 90 patients received prophylactic antifungal treatment (PAT) (40%), while 135 patients did not (60%) receive. The mean cost of hospitalization was 9.151,6 (2.872,6-20.483,3) US dollars. Gender distribution and mean ages of groups were similar. One hundred fourteen patients not on PAT (84.4%) and five patients on PAT (5.5%) received intravenous antifungal treatment. Thirty-two of the patients who were not on PAT (23.7%) and 11 of the patients on PAT died during remission induction (12.22%). The mean day of the hospitalization was 22.61 days for the patients on PAT and 33.89 days for the patients who were not on PAT. In patients on PAT, the mean number of transfused platelet units was six (0-9), while 12.51 (4-43) units for patients who were not on PAT. Conclusion In our study, the oral suspension form of posaconazole was observed to be cost-effective to prevent IFI with a significant decrease in mortality during remission induction treatment.Objective The frequency of Cushing's disease (CD), ACTH-independent Cushing's syndrome (CS) and autonomous cortisol secretion (ACS) in patients with obesity is not well known. Therefore, in the present study, we aimed to assess the frequency of CD, CS and ACS among the patients with obesity. Methods This study included 813 patients (683 female, mean age 46.47±14.23 yr; mean body mass index (BMI) 37.31±6.50 kg/m2). Patients with obesity were classified further to stages 1, 2, and 3, according to BMI. All patients underwent a low dose dexamethasone suppression test (LDDST). The patients with CD, CS, and ACS and patients with simple obesity were compared concerning gender, age, type-2 diabetes, hypertension (HT) and hyperlipidemia (HL). Results Forty-four (5.4%) out of 813 patients were diagnosed as CD, CS or ACS. CD, CS, and ACS were diagnosed in four (0.4%), two (0.2%), and 33 (4%) patients, respectively. When patients with CD, CS and ACS were compared to the patients with simple obesity, older age at diagnosis, the presence of stage-1 obesity, the presence of HT, and uncontrolled type-2 diabetes were more frequent in patients with CD, CS and ACS (p=0.001, p=0.007, p=0.004, and p=0.0026, respectively). Conclusion The frequency of CD, CS, and ACS is high among patients with obesity. Screening for CD, CS, and ACS in patients with stage-I obesity who are older than 50 years of age with uncontrolled type-2 diabetes and HT may be a reasonable approach.Objective Coronavirus Disease 2019 (COVID-19), named the etiological agent of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) has recently emerged in Wuhan City, Hubei Province, China, in December 2019. Kazakhstan's border proximity to China has led to preventive measures in the country since January. This study aims to evaluate the epidemiologic characters of the first recorded cases in Kazakhstan. Methods Here, we reviewed the preparedness of the infection control and prevention procedures in Kazakhstan and evaluated the epidemiological characters of confirmed cases in Kazakhstan. The data for COVID-19 cases recorded from March 13 to April 6, 2020, were obtained from the Sanitary Epidemiological Service. https://www.selleckchem.com/products/beta-glycerophosphate-sodium-salt-hydrate.html Age, gender and their living place were recorded. The severity of infection, geographical distribution, gender and age group of cases were analyzed. Results Four phases of preventive measures used in respiratory infections have been implemented in Kazakhstan since January 6, 2020. The first case was recorded on March 13. During the period of March 13 and April 06, 629 cases with COVID-19 were recorded in Kazakhstan. Of these, 45 patients recovered, six had resulted in death; 535 (85%) of cases were mild and/or asymptomatic, 72 (11.5%) - moderate, 22 (3.5%) - severe. Of these, 7.5% of the cases were registered as children and course was mild. Conclusion The cases are increasing in Kazakhstan as seen in other countries. Currently, the strict implication of respiratory infection control measurement in public and health care services are still very important.Objective Turkey is one of the latest countries that COVID-19 disease was reported, with the first case on March 11, 2020, and since then, Istanbul became the epicenter of the pandemic in Turkey. Here, we reveal sequences of the virus isolated from three different patients with various clinical presentations. Methods Nasopharyngeal swab specimens of the patients were tested positive for the COVID-19 by qRT-PCR. Viral RNA extraction was performed from the same swab samples. Amplicon based libraries were prepared and sequenced using the Illumina NextSeq platform. Raw sequencing data were processed for variant calling and generating near-complete genome sequences. All three genomes were evaluated and compared with other worldwide isolates. Results The patients showed various clinics (an asymptomatic patient, patient with mild disease, and with severe pulmonary infiltration). Amplicon-based next-generation sequencing approach successfully applied to generate near-complete genomes with an average depth of 2.616. All three viral genomes carried the D614G variant (G clade according to GISAID classification) with implications for the origin of a spread first through China to Europe then to Istanbul.
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  • RESULTS There were 16 active compounds of Christina Loosestrife and 11 nephrolithiasis-associated targets that were obtained. Functional enrichment analysis showed that Christina Loosestrife might exert its therapeutic effects by regulating pathways that included purine salvage, interleukin-4 (IL-4) and IL-13 signaling, and neutrophil degranulation. CONCLUSIONS Network pharmacology analysis of the herbal extract, Christina Loosestrife, identified multiple active compounds, targets, and pathways involved in the effects on nephrolithiasis.BACKGROUND Gout is a metabolic disease characterized by deposition of monosodium urate (MSU) crystals called tophi. The typical location of tophi is in the joint and will chronically damage the joint. However, there is a rare atypical dermatologic manifestation of tophi that occur extensively in the skin. CASE REPORT A 46-year-old male presented with acute pain in multiple joints. He had a history of gouty arthritis with recurrence attacks, in the past 2 years ago. Over time, he had gradual eruption of multiple tophi and multiple yellowish nodules under his skin which sometimes would ulcerate. Laboratory value showed creatinine 2.3 mg/dL and uric acid 11.5 mg/dL. Ultrasound of the kidney showed nephrocalcinosis appearance. Urate crystal was identified in skin biopsy of the nodules. We diagnosed the patient with chronic tophaceous gout with extensive cutaneous involvement. Given the renal impairment, we gave methylprednisolone 3 doses of 8 mg for 5 days then tapered off, colchicine 0.5 mg every other day and allopurinol 1 dose of 100 mg. The patient had dramatic improvement of his pain and is now being followed up regularly. CONCLUSIONS We describe a rare and severe extensive cutaneous manifestation in a chronic tophaceous gout patient.As the incidence of diabetes and cardiovascular comorbidities continues to rise, driven by increased prevalence of obesity and an aging population, so does the demand for percutaneous coronary intervention (PCI) to restore cardiac blood flow. Renin-angiotensin-aldosterone system (RAAS) inhibitors are commonly prescribed to hypertensive diabetic patients to prevent diabetic nephropathy. However, evidence suggests that angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs) may increase the risk of contrast-induced acute kidney injury (CIAKI) following coronary angiography (CAG) and PCI. We therefore conducted a retrospective, multicenter study applying the propensity score matching method to evaluate the impact of RAAS inhibition on CIAKI in diabetic patients undergoing CAG/PCI. Among 2240 subjects that met the inclusion criteria, 704 patients in the ACEIs/ARBs group were successfully matched to eligible control patients. The incidence of CIAKI (serum creatinine increase ≥0.5 mg/dl or ≥25% from baseline within 72 h post-CAG/PCI) was significantly higher in the ACEIs/ARBs group than in the control group (26.6% vs. 16.2%, P less then 0.001). However, control patients showed increased risk of overall adverse cardiovascular events (4.1% vs. 1.8% for ACEIs/ARBs; P=0.016). These data indicate that RAAS inhibition increases the risk of CIAKI in diabetic patients, but confers protection against early cardiovascular events.A simple environmentally friendly microwave-assisted protocol was developed for the synthesis of 3,5-bis(styryl)pyrazoles 2a-l, allowing their rapid generation and screening for anti-proliferative activity in the PC3 prostate cancer cell line. Two analogues (2a and 2l) had GI50 values in the low micromolar range and so were selected for further biological evaluation (apoptosis and cell cycle analysis, and effects on tubulin and microtubules). 3,5-Bis[(1E)-2(2,6-dichlorophenyl)ethenyl]-1H-pyrazole 2l induces cell death in PC3 cells even after the removal of the compound. The compound binds to tubulin (Kd 0.4±0.1 μM), inhibits tubulin polymerization in vitro (with no effect on the polymerization of bacterial cell division protein FtsZ, a homolog of tubulin). In addition, pyrazole 2l is competitive with paclitaxel for binding to tubulin but not with vinblastine, crocin, or colchicine. Treatment with pyrazole 2l results in microtubule depolymerization in PC3 cells; these 3,5-bis(styryl)pyrazoles thus warrant furtental Therapeutics.Kv11.1 (hERG) channels play a critical role in repolarization of cardiomyocytes during the cardiac action potential (AP). Drug mediated Kv11.1 blockade results in AP prolongation, which poses an increased risk of sudden cardiac death. Many drugs, like pentamidine, interfere with normal Kv11.1 forward trafficking and thus reduce functional Kv11.1 channel densities. Although class III antiarrhythmics, e.g. dofetilide, rescue congenital and acquired forward trafficking defects, this is of little use due to their simultaneous acute channel blocking effect. We aimed to test the ability of a combination of dofetilide plus LUF7244, a Kv11.1 allosteric modulator/activator, to rescue Kv11.1 trafficking and produce functional Kv11.1 current. LUF7244 treatment by itself did not disturb or rescue WT or G601S Kv11.1 trafficking as shown by western blot and immunofluorescence microcopy analysis. Pentamidine-decreased maturation of WT Kv11.1 levels was rescued by 10 μM dofetilide or 10 μM dofetilide + 5 μM LUF7244. In trafficking defective G601S Kv11.1 cells, dofetilide (10 μM) or dofetilide+LUF7244 (10+5 μM) restored Kv11.1 trafficking also, as demonstrated by western blot and immunofluorescence microscopy. https://www.selleckchem.com/products/ff-10101.html LUF7244 (10 μM) increased IKv11.1 despite the presence of dofetilide (1 μM) in WT Kv11.1 cells. In G601S expressing cells, long-term treatment (24-48 h) with LUF7244 (10 μM) and dofetilide (1 μM) increased IKv11.1 compared to non-treated, or acutely treated cells. We conclude that dofetilide plus LUF7244 rescues Kv11.1 trafficking and produces functional IKv11.1. Thus, combined administration of LUF7244 and an IKV11.1 trafficking corrector could serve as a new pharmacological therapy of both congenital and drug-induced Kv11.1 trafficking defects. SIGNIFICANCE STATEMENT LUF7244, a negative allosteric modulator/activator, in combination with dofetilide corrected both congenital and acquired Kv11.1 trafficking defects resulting in functional Kv11.1 current. The American Society for Pharmacology and Experimental Therapeutics.
    RESULTS There were 16 active compounds of Christina Loosestrife and 11 nephrolithiasis-associated targets that were obtained. Functional enrichment analysis showed that Christina Loosestrife might exert its therapeutic effects by regulating pathways that included purine salvage, interleukin-4 (IL-4) and IL-13 signaling, and neutrophil degranulation. CONCLUSIONS Network pharmacology analysis of the herbal extract, Christina Loosestrife, identified multiple active compounds, targets, and pathways involved in the effects on nephrolithiasis.BACKGROUND Gout is a metabolic disease characterized by deposition of monosodium urate (MSU) crystals called tophi. The typical location of tophi is in the joint and will chronically damage the joint. However, there is a rare atypical dermatologic manifestation of tophi that occur extensively in the skin. CASE REPORT A 46-year-old male presented with acute pain in multiple joints. He had a history of gouty arthritis with recurrence attacks, in the past 2 years ago. Over time, he had gradual eruption of multiple tophi and multiple yellowish nodules under his skin which sometimes would ulcerate. Laboratory value showed creatinine 2.3 mg/dL and uric acid 11.5 mg/dL. Ultrasound of the kidney showed nephrocalcinosis appearance. Urate crystal was identified in skin biopsy of the nodules. We diagnosed the patient with chronic tophaceous gout with extensive cutaneous involvement. Given the renal impairment, we gave methylprednisolone 3 doses of 8 mg for 5 days then tapered off, colchicine 0.5 mg every other day and allopurinol 1 dose of 100 mg. The patient had dramatic improvement of his pain and is now being followed up regularly. CONCLUSIONS We describe a rare and severe extensive cutaneous manifestation in a chronic tophaceous gout patient.As the incidence of diabetes and cardiovascular comorbidities continues to rise, driven by increased prevalence of obesity and an aging population, so does the demand for percutaneous coronary intervention (PCI) to restore cardiac blood flow. Renin-angiotensin-aldosterone system (RAAS) inhibitors are commonly prescribed to hypertensive diabetic patients to prevent diabetic nephropathy. However, evidence suggests that angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs) may increase the risk of contrast-induced acute kidney injury (CIAKI) following coronary angiography (CAG) and PCI. We therefore conducted a retrospective, multicenter study applying the propensity score matching method to evaluate the impact of RAAS inhibition on CIAKI in diabetic patients undergoing CAG/PCI. Among 2240 subjects that met the inclusion criteria, 704 patients in the ACEIs/ARBs group were successfully matched to eligible control patients. The incidence of CIAKI (serum creatinine increase ≥0.5 mg/dl or ≥25% from baseline within 72 h post-CAG/PCI) was significantly higher in the ACEIs/ARBs group than in the control group (26.6% vs. 16.2%, P less then 0.001). However, control patients showed increased risk of overall adverse cardiovascular events (4.1% vs. 1.8% for ACEIs/ARBs; P=0.016). These data indicate that RAAS inhibition increases the risk of CIAKI in diabetic patients, but confers protection against early cardiovascular events.A simple environmentally friendly microwave-assisted protocol was developed for the synthesis of 3,5-bis(styryl)pyrazoles 2a-l, allowing their rapid generation and screening for anti-proliferative activity in the PC3 prostate cancer cell line. Two analogues (2a and 2l) had GI50 values in the low micromolar range and so were selected for further biological evaluation (apoptosis and cell cycle analysis, and effects on tubulin and microtubules). 3,5-Bis[(1E)-2(2,6-dichlorophenyl)ethenyl]-1H-pyrazole 2l induces cell death in PC3 cells even after the removal of the compound. The compound binds to tubulin (Kd 0.4±0.1 μM), inhibits tubulin polymerization in vitro (with no effect on the polymerization of bacterial cell division protein FtsZ, a homolog of tubulin). In addition, pyrazole 2l is competitive with paclitaxel for binding to tubulin but not with vinblastine, crocin, or colchicine. Treatment with pyrazole 2l results in microtubule depolymerization in PC3 cells; these 3,5-bis(styryl)pyrazoles thus warrant furtental Therapeutics.Kv11.1 (hERG) channels play a critical role in repolarization of cardiomyocytes during the cardiac action potential (AP). Drug mediated Kv11.1 blockade results in AP prolongation, which poses an increased risk of sudden cardiac death. Many drugs, like pentamidine, interfere with normal Kv11.1 forward trafficking and thus reduce functional Kv11.1 channel densities. Although class III antiarrhythmics, e.g. dofetilide, rescue congenital and acquired forward trafficking defects, this is of little use due to their simultaneous acute channel blocking effect. We aimed to test the ability of a combination of dofetilide plus LUF7244, a Kv11.1 allosteric modulator/activator, to rescue Kv11.1 trafficking and produce functional Kv11.1 current. LUF7244 treatment by itself did not disturb or rescue WT or G601S Kv11.1 trafficking as shown by western blot and immunofluorescence microcopy analysis. Pentamidine-decreased maturation of WT Kv11.1 levels was rescued by 10 μM dofetilide or 10 μM dofetilide + 5 μM LUF7244. In trafficking defective G601S Kv11.1 cells, dofetilide (10 μM) or dofetilide+LUF7244 (10+5 μM) restored Kv11.1 trafficking also, as demonstrated by western blot and immunofluorescence microscopy. https://www.selleckchem.com/products/ff-10101.html LUF7244 (10 μM) increased IKv11.1 despite the presence of dofetilide (1 μM) in WT Kv11.1 cells. In G601S expressing cells, long-term treatment (24-48 h) with LUF7244 (10 μM) and dofetilide (1 μM) increased IKv11.1 compared to non-treated, or acutely treated cells. We conclude that dofetilide plus LUF7244 rescues Kv11.1 trafficking and produces functional IKv11.1. Thus, combined administration of LUF7244 and an IKV11.1 trafficking corrector could serve as a new pharmacological therapy of both congenital and drug-induced Kv11.1 trafficking defects. SIGNIFICANCE STATEMENT LUF7244, a negative allosteric modulator/activator, in combination with dofetilide corrected both congenital and acquired Kv11.1 trafficking defects resulting in functional Kv11.1 current. The American Society for Pharmacology and Experimental Therapeutics.
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  • INTRODUCTION Phase I and II trials provide the initial human safety and tolerability data for new drugs. However, the methods for presenting toxicity data are not standardized. Clinicians often first encounter these data at professional conferences. We sought to characterize how the burden of adverse events (AE) is reported at the largest professional conference in clinical oncology. METHODS We collected toxicity data from all lung cancer-associated phase I and II trial presentations and posters at the American Society for Clinical Oncology annual meetings 2017-2019. We captured AE features including the minimum incidence utilized for reporting; whether AEs shown were treatment-emergent or treatment-related, grouped by organ system or separated by individual descriptors; whether combined or separated across dose levels when a dose escalation component was included; and whether dose-limiting toxicities, serious AE, dose reduction rules and denominators for laboratory tests were described. RESULTS 209 trials were analyzed. There was wide variability in toxicity reporting practices. Six different thresholds for reporting AE of any grade were used. Treatment-related AEs were reported twice as frequently as treatment-emergent AEs. Toxicities were as likely to be reported across dose level as by dose level. Terms such as dose-limiting toxicity and serious AE were rarely defined. Dose reduction rules and denominators for laboratory tests were never defined. CONCLUSION Standardization of methods for reporting toxicities could improve the quality and ease of comparability of data on adverse effects in early phase therapeutic trials. A minimal AE data disclosure template is proposed. The coronavirus disease 2019 (Covid-19) outbreak is evolving rapidly worldwide. The Lung is the target organ of the primary infection and patient whit lung cancer seems to have a poor prognosis. This is the first reported investigation on a possible role of IL 17 target therapy in Lung Cancer patients with concomitant Sars-CoV2 infection. BACKGROUND Acquired resistance to osimertinib mediated by EGFR cis-C797S is now a growing challenge. No effective treatment strategy is currently available to overcome cis-C797S-mediated resistance. METHODS In this retrospective cohort study, 15 patients with advanced lung adenocarcinoma were identified with EGFR-activating mutation/T790M/cis-C797S after osimertinib progression by targeted next-generation sequencing. Five patients received combined therapy of brigatinib and cetuximab, and ten patients received cisplatin-based doublet chemotherapy. RESULTS Among the five EGFR 19del/T790M/cis-C797S-positive patients who received brigatinib and cetuximab combination therapy, three patients achieved partial response (PR) and two had stable disease (SD), resulting in an objective response rate (ORR) of 60% and disease control rate (DCR) of 100%. Meanwhile, among the ten EGFR 19del or L858R/T790M/cis-C797S-positive patients who received chemotherapy, only one patient achieved PR, five had SD, and four did not benefit from chemotherapy, resulting in ORR and DCR of 10% and 60%, respectively. The median progression-free survival (PFS) of patients who received combined targeted therapy was 14 months, and 3 months for those treated with chemotherapy. No grade III-IV adverse events were observed in all the patients. CONCLUSION Our retrospective study provides clinical evidence that combined targeted therapy of brigatinib and cetuximab could provide benefit and may potentially be an effective treatment strategy to improve survival outcomes of patients who acquired EGFR T790M/cis-C797S-mediated resistance to osimertinib. Clinical Named Entity Recognition (CNER) is a critical task which aims to identify and classify clinical terms in electronic medical records. In recent years, deep neural networks have achieved significant success in CNER. However, these methods require high-quality and large-scale labeled clinical data, which is challenging and expensive to obtain, especially data on Chinese clinical records. To tackle the Chinese CNER task, we pre-train BERT model on the unlabeled Chinese clinical records, which can leverage the unlabeled domain-specific knowledge. Different layers such as Long Short-Term Memory (LSTM) and Conditional Random Field (CRF) are used to extract the text features and decode the predicted tags respectively. In addition, we propose a new strategy to incorporate dictionary features into the model. Radical features of Chinese characters are used to improve the model performance as well. To the best of our knowledge, our ensemble model outperforms the state of the art models which achieves 89.56% strict F1 score on the CCKS-2018 dataset and 91.60% F1 score on CCKS-2017 dataset. INTRODUCTION Initial Phase III clinical studies with polidocanol endovenous microfoam (PEM) have demonstrated safety and efficacy in the treatment of superficial venous reflux. In those studies, the primary outcome requirement was to assess improvement in symptoms related to superficial venous disease. The goal of this study was to evaluate the efficacy of PEM technology in routine clinical practice, specifically closure rates following treatment. METHODS This was an observational study during which data were prospectively collected from two vein centers using an electronic database. Patients with CEAP Class 2 or higher and symptomatic superficial axial reflux (great saphenous vein, anterior accessory saphenous vein and small saphenous vein) were included and followed prospectively. PEM was used to treat the saphenous vein and the varicosities. CEAP classification was used to classify chronic venous disease, and the venous clinical severity score (VCSS) was applied to measure the severity of disease. Pain and discomfort were assessed with a visual analogue scale and residual veins by physical examination. RESULTS PEM was used to treat superficial reflux in 60 patients. CEAP distribution was C2 in 32 patients, C3 in 14, C4 in 10 and C5 in 4 patients. The average pre-treatment VCSS was 7.3. Saphenous vein diameter was 6.5 mm and the average length was 31 cm. The average volume of PEM used to treat the saphenous veins was 9.3 cc. Closure rate at 3 months was 93% (54/58) and 93% (51/55) at 6 months. VCSS improved from 7.3 to 1.4. Complications included one deep vein thrombosis (1.7%), 5 patients (8.3%) with thrombophlebitis and 4 patients (6.6%) with skin pigmentation. https://www.selleckchem.com/products/mevastatin.html CONCLUSION PEM is safe and effective for the treatment of saphenous reflux and varicosities. Early closure rates using PEM are maintained at 6 months and are comparable to results reported with non-thermal non-tumescent and thermal tumescent technologies.
    INTRODUCTION Phase I and II trials provide the initial human safety and tolerability data for new drugs. However, the methods for presenting toxicity data are not standardized. Clinicians often first encounter these data at professional conferences. We sought to characterize how the burden of adverse events (AE) is reported at the largest professional conference in clinical oncology. METHODS We collected toxicity data from all lung cancer-associated phase I and II trial presentations and posters at the American Society for Clinical Oncology annual meetings 2017-2019. We captured AE features including the minimum incidence utilized for reporting; whether AEs shown were treatment-emergent or treatment-related, grouped by organ system or separated by individual descriptors; whether combined or separated across dose levels when a dose escalation component was included; and whether dose-limiting toxicities, serious AE, dose reduction rules and denominators for laboratory tests were described. RESULTS 209 trials were analyzed. There was wide variability in toxicity reporting practices. Six different thresholds for reporting AE of any grade were used. Treatment-related AEs were reported twice as frequently as treatment-emergent AEs. Toxicities were as likely to be reported across dose level as by dose level. Terms such as dose-limiting toxicity and serious AE were rarely defined. Dose reduction rules and denominators for laboratory tests were never defined. CONCLUSION Standardization of methods for reporting toxicities could improve the quality and ease of comparability of data on adverse effects in early phase therapeutic trials. A minimal AE data disclosure template is proposed. The coronavirus disease 2019 (Covid-19) outbreak is evolving rapidly worldwide. The Lung is the target organ of the primary infection and patient whit lung cancer seems to have a poor prognosis. This is the first reported investigation on a possible role of IL 17 target therapy in Lung Cancer patients with concomitant Sars-CoV2 infection. BACKGROUND Acquired resistance to osimertinib mediated by EGFR cis-C797S is now a growing challenge. No effective treatment strategy is currently available to overcome cis-C797S-mediated resistance. METHODS In this retrospective cohort study, 15 patients with advanced lung adenocarcinoma were identified with EGFR-activating mutation/T790M/cis-C797S after osimertinib progression by targeted next-generation sequencing. Five patients received combined therapy of brigatinib and cetuximab, and ten patients received cisplatin-based doublet chemotherapy. RESULTS Among the five EGFR 19del/T790M/cis-C797S-positive patients who received brigatinib and cetuximab combination therapy, three patients achieved partial response (PR) and two had stable disease (SD), resulting in an objective response rate (ORR) of 60% and disease control rate (DCR) of 100%. Meanwhile, among the ten EGFR 19del or L858R/T790M/cis-C797S-positive patients who received chemotherapy, only one patient achieved PR, five had SD, and four did not benefit from chemotherapy, resulting in ORR and DCR of 10% and 60%, respectively. The median progression-free survival (PFS) of patients who received combined targeted therapy was 14 months, and 3 months for those treated with chemotherapy. No grade III-IV adverse events were observed in all the patients. CONCLUSION Our retrospective study provides clinical evidence that combined targeted therapy of brigatinib and cetuximab could provide benefit and may potentially be an effective treatment strategy to improve survival outcomes of patients who acquired EGFR T790M/cis-C797S-mediated resistance to osimertinib. Clinical Named Entity Recognition (CNER) is a critical task which aims to identify and classify clinical terms in electronic medical records. In recent years, deep neural networks have achieved significant success in CNER. However, these methods require high-quality and large-scale labeled clinical data, which is challenging and expensive to obtain, especially data on Chinese clinical records. To tackle the Chinese CNER task, we pre-train BERT model on the unlabeled Chinese clinical records, which can leverage the unlabeled domain-specific knowledge. Different layers such as Long Short-Term Memory (LSTM) and Conditional Random Field (CRF) are used to extract the text features and decode the predicted tags respectively. In addition, we propose a new strategy to incorporate dictionary features into the model. Radical features of Chinese characters are used to improve the model performance as well. To the best of our knowledge, our ensemble model outperforms the state of the art models which achieves 89.56% strict F1 score on the CCKS-2018 dataset and 91.60% F1 score on CCKS-2017 dataset. INTRODUCTION Initial Phase III clinical studies with polidocanol endovenous microfoam (PEM) have demonstrated safety and efficacy in the treatment of superficial venous reflux. In those studies, the primary outcome requirement was to assess improvement in symptoms related to superficial venous disease. The goal of this study was to evaluate the efficacy of PEM technology in routine clinical practice, specifically closure rates following treatment. METHODS This was an observational study during which data were prospectively collected from two vein centers using an electronic database. Patients with CEAP Class 2 or higher and symptomatic superficial axial reflux (great saphenous vein, anterior accessory saphenous vein and small saphenous vein) were included and followed prospectively. PEM was used to treat the saphenous vein and the varicosities. CEAP classification was used to classify chronic venous disease, and the venous clinical severity score (VCSS) was applied to measure the severity of disease. Pain and discomfort were assessed with a visual analogue scale and residual veins by physical examination. RESULTS PEM was used to treat superficial reflux in 60 patients. CEAP distribution was C2 in 32 patients, C3 in 14, C4 in 10 and C5 in 4 patients. The average pre-treatment VCSS was 7.3. Saphenous vein diameter was 6.5 mm and the average length was 31 cm. The average volume of PEM used to treat the saphenous veins was 9.3 cc. Closure rate at 3 months was 93% (54/58) and 93% (51/55) at 6 months. VCSS improved from 7.3 to 1.4. Complications included one deep vein thrombosis (1.7%), 5 patients (8.3%) with thrombophlebitis and 4 patients (6.6%) with skin pigmentation. https://www.selleckchem.com/products/mevastatin.html CONCLUSION PEM is safe and effective for the treatment of saphenous reflux and varicosities. Early closure rates using PEM are maintained at 6 months and are comparable to results reported with non-thermal non-tumescent and thermal tumescent technologies.
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  • By examining seasonal changes in volatiles using gas chromatography-mass spectrometry, we found that the secretion of three C12 and C14 aldehydes with a fruity and floral scent significantly increased during the breeding season in a testosterone-dependent manner. Females sniffed for longer at biologically relevant concentrations of two of the aldehydes (12-methyltridecanal and tetradecanal) and were attracted to a mixture of these plus the third aldehyde, dodecanal. Our results suggest that these aldehydes are putative lemur pheromones involved in the attractiveness of males to females during the breeding season. Ferroptosis is an iron-dependent cell-death modality driven by oxidative phospholipid damage. In contrast to apoptosis, which enables organisms to eliminate targeted cells purposefully at specific times, ferroptosis appears to be a vulnerability of cells that otherwise use high levels of polyunsaturated lipids to their advantage. Cells in this high polyunsaturated lipid state generally have safeguards that mitigate ferroptotic risk. Since its recognition, ferroptosis has been implicated in degenerative diseases in tissues including kidney and brain, and is a targetable vulnerability in multiple cancers-each likely characterized by the high polyunsaturated lipid state with insufficient or overwhelmed ferroptotic safeguards. In this Perspective, we present progress toward defining the essential roles and key mediators of lipid peroxidation and ferroptosis in disease contexts. Moreover, we discuss gaps in our understanding of ferroptosis and list key challenges that have thus far limited the full potential of targeting ferroptosis for improving human health. In the last decade, the role of apoptosis in the pathophysiology of acute kidney injury (AKI) and AKI to chronic kidney disease (CKD) progression has been revisited as our understanding of ferroptosis and necroptosis has emerged. A growing body of evidence, reviewed here, ascribes a central pathophysiological role for ferroptosis and necroptosis to AKI, nephron loss, and acute tubular necrosis. We will introduce concepts to the non-cell-autonomous manner of kidney tubular injury during ferroptosis, a phenomenon that we refer to as a "wave of death." We hypothesize that necroptosis might initiate cell death propagation through ferroptosis. The remaining necrotic debris requires effective removal processes to prevent a secondary inflammatory response, referred to as necroinflammation. Open questions include the differences in the immunogenicity of ferroptosis and necroptosis, and the specificity of necrostatins and ferrostatins to therapeutically target these processes to prevent AKI-to-CKD progression and end-stage renal disease. Microbial contamination of polymer surfaces has become a significant challenge in domestic, industrial, and biomedical applications. Recent progress in our understanding of how topographical features of different length scales can be used to effectively and selectively control the attachment and proliferation of different cell types has provided an alternative strategy for imparting antibacterial activity to these surfaces. https://www.selleckchem.com/products/IC-87114.html Among the well-recognized engineered models of antibacterial surface topographies, self-organized wrinkles have shown particular promise with respect to their antimicrobial characteristics. Here, we critically review the mechanisms by which wrinkles form on the surface of different types of polymer material and how they interact with various biomolecules and cell types. We also discuss the feasibility of using this antimicrobial strategy in real-life biomedical applications. Chemical manufacturing involves carbon sources releasing CO2 into the atmosphere. By contrast, seaweeds are carbon sinks that can absorb released CO2 and therefore have great potential for use as feedstocks in sustainable chemical manufacturing. In particular, seaweeds could contribute to mitigating vast amounts of global CO2 emissions. Accordingly, seaweeds could be an excellent candidate biomaterial for sustainable production of hydroxymethylfurfural (HMF), called a 'sleeping giant' platform chemical due to its wide versatility in chemical manufacturing. HMF is produced through sugar dehydration mechanisms, and seaweed storage glucans comprised of glucose can be appropriate feeding substrates for its production. This opinion article introduces a new opportunity for sustainable production of HMF using storage glucan-rich seaweeds. Microbial production of medium-chain fatty acids (MCFAs) is challenging, as they are rare metabolites and toxic to cells. Recently, Zhu et al. performed multidimensional engineering in Saccharomyces cerevisiae, including engineering fatty acid synthases and improving cellular tolerance to MCFAs, to build an efficient MCFA cell factory. We discuss options to reform the EU genetically modified organism (GMO) regulatory framework, make risk assessment and decision-making more consistent with scientific principles, and lay the groundwork for international coherence. In this third of three articles, we focus on labeling and coexistence as well as discuss the political reality and potential ways forward. Cancer-associated fibroblasts (CAFs) are an integral component of the tumor microenvironment and have both tumor-promoting and tumor-suppressive functions. This SnapShot summarizes the origins of CAFs, their diverse functions, and how this relates to heterogeneity within the population. The suitability of targeting CAFs therapeutically is also discussed. Single-cell RNA sequencing (scRNA-seq) is a powerful tool for defining cellular diversity in tumors, but its application toward dissecting mechanisms underlying immune-modulating therapies is scarce. We performed scRNA-seq analyses on immune and stromal populations from colorectal cancer patients, identifying specific macrophage and conventional dendritic cell (cDC) subsets as key mediators of cellular cross-talk in the tumor microenvironment. Defining comparable myeloid populations in mouse tumors enabled characterization of their response to myeloid-targeted immunotherapy. Treatment with anti-CSF1R preferentially depleted macrophages with an inflammatory signature but spared macrophage populations that in mouse and human expresses pro-angiogenic/tumorigenic genes. Treatment with a CD40 agonist antibody preferentially activated a cDC population and increased Bhlhe40+ Th1-like cells and CD8+ memory T cells. Our comprehensive analysis of key myeloid subsets in human and mouse identifies critical cellular interactions regulating tumor immunity and defines mechanisms underlying myeloid-targeted immunotherapies currently undergoing clinical testing.
    By examining seasonal changes in volatiles using gas chromatography-mass spectrometry, we found that the secretion of three C12 and C14 aldehydes with a fruity and floral scent significantly increased during the breeding season in a testosterone-dependent manner. Females sniffed for longer at biologically relevant concentrations of two of the aldehydes (12-methyltridecanal and tetradecanal) and were attracted to a mixture of these plus the third aldehyde, dodecanal. Our results suggest that these aldehydes are putative lemur pheromones involved in the attractiveness of males to females during the breeding season. Ferroptosis is an iron-dependent cell-death modality driven by oxidative phospholipid damage. In contrast to apoptosis, which enables organisms to eliminate targeted cells purposefully at specific times, ferroptosis appears to be a vulnerability of cells that otherwise use high levels of polyunsaturated lipids to their advantage. Cells in this high polyunsaturated lipid state generally have safeguards that mitigate ferroptotic risk. Since its recognition, ferroptosis has been implicated in degenerative diseases in tissues including kidney and brain, and is a targetable vulnerability in multiple cancers-each likely characterized by the high polyunsaturated lipid state with insufficient or overwhelmed ferroptotic safeguards. In this Perspective, we present progress toward defining the essential roles and key mediators of lipid peroxidation and ferroptosis in disease contexts. Moreover, we discuss gaps in our understanding of ferroptosis and list key challenges that have thus far limited the full potential of targeting ferroptosis for improving human health. In the last decade, the role of apoptosis in the pathophysiology of acute kidney injury (AKI) and AKI to chronic kidney disease (CKD) progression has been revisited as our understanding of ferroptosis and necroptosis has emerged. A growing body of evidence, reviewed here, ascribes a central pathophysiological role for ferroptosis and necroptosis to AKI, nephron loss, and acute tubular necrosis. We will introduce concepts to the non-cell-autonomous manner of kidney tubular injury during ferroptosis, a phenomenon that we refer to as a "wave of death." We hypothesize that necroptosis might initiate cell death propagation through ferroptosis. The remaining necrotic debris requires effective removal processes to prevent a secondary inflammatory response, referred to as necroinflammation. Open questions include the differences in the immunogenicity of ferroptosis and necroptosis, and the specificity of necrostatins and ferrostatins to therapeutically target these processes to prevent AKI-to-CKD progression and end-stage renal disease. Microbial contamination of polymer surfaces has become a significant challenge in domestic, industrial, and biomedical applications. Recent progress in our understanding of how topographical features of different length scales can be used to effectively and selectively control the attachment and proliferation of different cell types has provided an alternative strategy for imparting antibacterial activity to these surfaces. https://www.selleckchem.com/products/IC-87114.html Among the well-recognized engineered models of antibacterial surface topographies, self-organized wrinkles have shown particular promise with respect to their antimicrobial characteristics. Here, we critically review the mechanisms by which wrinkles form on the surface of different types of polymer material and how they interact with various biomolecules and cell types. We also discuss the feasibility of using this antimicrobial strategy in real-life biomedical applications. Chemical manufacturing involves carbon sources releasing CO2 into the atmosphere. By contrast, seaweeds are carbon sinks that can absorb released CO2 and therefore have great potential for use as feedstocks in sustainable chemical manufacturing. In particular, seaweeds could contribute to mitigating vast amounts of global CO2 emissions. Accordingly, seaweeds could be an excellent candidate biomaterial for sustainable production of hydroxymethylfurfural (HMF), called a 'sleeping giant' platform chemical due to its wide versatility in chemical manufacturing. HMF is produced through sugar dehydration mechanisms, and seaweed storage glucans comprised of glucose can be appropriate feeding substrates for its production. This opinion article introduces a new opportunity for sustainable production of HMF using storage glucan-rich seaweeds. Microbial production of medium-chain fatty acids (MCFAs) is challenging, as they are rare metabolites and toxic to cells. Recently, Zhu et al. performed multidimensional engineering in Saccharomyces cerevisiae, including engineering fatty acid synthases and improving cellular tolerance to MCFAs, to build an efficient MCFA cell factory. We discuss options to reform the EU genetically modified organism (GMO) regulatory framework, make risk assessment and decision-making more consistent with scientific principles, and lay the groundwork for international coherence. In this third of three articles, we focus on labeling and coexistence as well as discuss the political reality and potential ways forward. Cancer-associated fibroblasts (CAFs) are an integral component of the tumor microenvironment and have both tumor-promoting and tumor-suppressive functions. This SnapShot summarizes the origins of CAFs, their diverse functions, and how this relates to heterogeneity within the population. The suitability of targeting CAFs therapeutically is also discussed. Single-cell RNA sequencing (scRNA-seq) is a powerful tool for defining cellular diversity in tumors, but its application toward dissecting mechanisms underlying immune-modulating therapies is scarce. We performed scRNA-seq analyses on immune and stromal populations from colorectal cancer patients, identifying specific macrophage and conventional dendritic cell (cDC) subsets as key mediators of cellular cross-talk in the tumor microenvironment. Defining comparable myeloid populations in mouse tumors enabled characterization of their response to myeloid-targeted immunotherapy. Treatment with anti-CSF1R preferentially depleted macrophages with an inflammatory signature but spared macrophage populations that in mouse and human expresses pro-angiogenic/tumorigenic genes. Treatment with a CD40 agonist antibody preferentially activated a cDC population and increased Bhlhe40+ Th1-like cells and CD8+ memory T cells. Our comprehensive analysis of key myeloid subsets in human and mouse identifies critical cellular interactions regulating tumor immunity and defines mechanisms underlying myeloid-targeted immunotherapies currently undergoing clinical testing.
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  • Surabaya River is one of the lower tributary of the Brantas, which is included as the top 20 plastic polluted rivers worldwide. The main function of Surabaya River is for raw water source for Surabaya City. Besides, this river is used for domestic and industrial waste discharges, and for irrigation. This study aimed to investigate the distribution of microplastics (MPs/MP) and its characteristics in three stratified depths (surface, middle, and bottom) of the river. This study was conducted in eight sampling sites, which were located in the Lower Brantas and the Surabaya Rivers. The MP abundance in the surface, middle, and bottom of the river ranged 1.47-43.11; 0.76-12.56; and 1.43-34.63 particles/m3, respectively. The highest average of MP abundance was 21.16 particles/m3 at the lower end of the river. The MP particles tend to be mainly distributed in the surface than in the other depth levels. The MP particles in each depth were generally dominated by film shaped large MP of 1-5 mm size, and transparent in color. Three main polymer types of the MPs were low density polyethylene, polypropylene, and polyethylene. Due to their small size, nanoplastics (NPLs) possess specific properties which can potentiate their toxicity towards aquatic organisms. As primary producers, microalgae are at the base of aquatic food chains, thus negative impacts of NPLs will likely lead to disturbances in ecosystem productivity. The majority of data available on the toxicity of NPLs is limited to polystyrene and green microalgae, leaving a significant lack of knowledge on impacts of other polymer types across different taxonomic groups. So, the main objective of this study was to evaluate the cell responses of the red microalgae Rhodomonas baltica to plain and carboxylated poly(methyl methacrylate) NPLs (PMMA and PMMA-COOH, 50 nm). Results showed different NPL behaviour in media over time, with PMMA forming micro-scale aggregates and PMMA-COOH maintaining its nominal size range. PMMA caused a higher impact in cellular and physiological parameters than PMMA-COOH, even though a decrease in algal growth was only seen for the later. Overall, PMMA caused a significant decrease in cell viability followed by an increase in cell size and complexity, overproduction of pigments, loss of membrane integrity, hyperpolarization of the mitochondrial membrane, increased production of ROS and LPO, decrease in DNA content and reduced photosynthetic capacity. Conversely, a decrease in algal growth for PMMA-COOH was connected to an impairment in cell cycle and consequent decrease in cell viability, metabolic activity and photosynthetic performance, with negligible effects in ROS formation and pigments content. This study provided a first insight into the mechanistic understanding of the toxic impacts of PMMA and PMMA-COOH NPLs in red microalgae. Results obtained suggest an interaction between both NPLs and R. baltica cell surface that is dependent on particle behaviour and surface chemistry. Future experiments focusing on the in-depth characterization of the mode of action of these particles are recommended. Accurate exposure estimate of the air pollutant PM2.5 is required to evaluate its health impacts in epidemiological studies, due to its adverse effects on human's respiratory and cardiovascular systems. However, traditional personal sampling is time and cost consuming. Thus, modeling techniques are needed to accurately predict the personal exposure level to PM2.5. In this study, a total of 117 older adults over 60 were recruited in Tianjin, a heavily polluted city in northern China, for indoor, outdoor and personal PM2.5 sampling. Eighteen variables which may increase the exposure level of older adults were recorded for artificial neural network (ANN) simulation. Four modeling techniques, including time-integrated activity modeling, Monte Carlo simulation, ANN modeling, and combined use of principal component analysis (PCA) and ANN model, were used to evaluate their ability for predicting real exposure values of PM2.5. The results of traditional time-weighted activity modeling showed the lowest correlation with measured values with R2 of 0.57 and 0.42 in winter and summer, respectively. For Monte Carlo simulation, high correlation was obtained (R2 of 0.93 and 0.92 in winter and summer, respectively) between percentiles of the predicted and the real exposure values. Compared with the simple ANN models, the combined use of PCA and ANN produced the most accurate results with R2 of 0.99 and RMSE lower than 15. Since the information of the input variables for the PCA-ANN model can be obtained from the questionnaire and fixed air quality monitoring sites, this technique shows a great potential in predicting personal exposure level to the air pollutant because no additional concentration measurement is needed. Rigorous air pollution managements since 2013 resulted in decreasing trend in fine particulate matter (PM2.5) in China. Regional air pollution prevention measures were extra implemented in the "2 + 26" region since 2017. However, haze pollution dramatically rebounded in the winter of 2018. Both of the observed analyses and the numerical results (basing on a global 3-D chemical transport model) demonstrated that, although intensified prevention measures existed, atmospheric circulation and local meteorological conditions still significantly influenced the variation in haze pollution. The simulated PM2.5 concentrations (with fixed emissions) driven by meteorology in 2018 were 12-15% higher than those with atmospheric circulations in 2017 both under a low and a high emission level, close to the observed 10% PM2.5 rebound. In 2018, positive sea ice anomalies around Beaufort Sea and "triple pattern" anomalies of sea surface temperature in the North Pacific and North Atlantic enhanced the anomalous anticyclonic circulations over the air-polluted region, and thus resulted in minimum surface wind speed during 1979-2018 and 16.8% shallower boundary layer than those in 2017. In the stagnated air of winter 2018, the transported dispersion of pollutant particles was weakened, however more secondary aerosols were produced by enhanced chemical reactions, which jointly contributed to the PM2.5 rebound in 2018. https://www.selleckchem.com/
    Surabaya River is one of the lower tributary of the Brantas, which is included as the top 20 plastic polluted rivers worldwide. The main function of Surabaya River is for raw water source for Surabaya City. Besides, this river is used for domestic and industrial waste discharges, and for irrigation. This study aimed to investigate the distribution of microplastics (MPs/MP) and its characteristics in three stratified depths (surface, middle, and bottom) of the river. This study was conducted in eight sampling sites, which were located in the Lower Brantas and the Surabaya Rivers. The MP abundance in the surface, middle, and bottom of the river ranged 1.47-43.11; 0.76-12.56; and 1.43-34.63 particles/m3, respectively. The highest average of MP abundance was 21.16 particles/m3 at the lower end of the river. The MP particles tend to be mainly distributed in the surface than in the other depth levels. The MP particles in each depth were generally dominated by film shaped large MP of 1-5 mm size, and transparent in color. Three main polymer types of the MPs were low density polyethylene, polypropylene, and polyethylene. Due to their small size, nanoplastics (NPLs) possess specific properties which can potentiate their toxicity towards aquatic organisms. As primary producers, microalgae are at the base of aquatic food chains, thus negative impacts of NPLs will likely lead to disturbances in ecosystem productivity. The majority of data available on the toxicity of NPLs is limited to polystyrene and green microalgae, leaving a significant lack of knowledge on impacts of other polymer types across different taxonomic groups. So, the main objective of this study was to evaluate the cell responses of the red microalgae Rhodomonas baltica to plain and carboxylated poly(methyl methacrylate) NPLs (PMMA and PMMA-COOH, 50 nm). Results showed different NPL behaviour in media over time, with PMMA forming micro-scale aggregates and PMMA-COOH maintaining its nominal size range. PMMA caused a higher impact in cellular and physiological parameters than PMMA-COOH, even though a decrease in algal growth was only seen for the later. Overall, PMMA caused a significant decrease in cell viability followed by an increase in cell size and complexity, overproduction of pigments, loss of membrane integrity, hyperpolarization of the mitochondrial membrane, increased production of ROS and LPO, decrease in DNA content and reduced photosynthetic capacity. Conversely, a decrease in algal growth for PMMA-COOH was connected to an impairment in cell cycle and consequent decrease in cell viability, metabolic activity and photosynthetic performance, with negligible effects in ROS formation and pigments content. This study provided a first insight into the mechanistic understanding of the toxic impacts of PMMA and PMMA-COOH NPLs in red microalgae. Results obtained suggest an interaction between both NPLs and R. baltica cell surface that is dependent on particle behaviour and surface chemistry. Future experiments focusing on the in-depth characterization of the mode of action of these particles are recommended. Accurate exposure estimate of the air pollutant PM2.5 is required to evaluate its health impacts in epidemiological studies, due to its adverse effects on human's respiratory and cardiovascular systems. However, traditional personal sampling is time and cost consuming. Thus, modeling techniques are needed to accurately predict the personal exposure level to PM2.5. In this study, a total of 117 older adults over 60 were recruited in Tianjin, a heavily polluted city in northern China, for indoor, outdoor and personal PM2.5 sampling. Eighteen variables which may increase the exposure level of older adults were recorded for artificial neural network (ANN) simulation. Four modeling techniques, including time-integrated activity modeling, Monte Carlo simulation, ANN modeling, and combined use of principal component analysis (PCA) and ANN model, were used to evaluate their ability for predicting real exposure values of PM2.5. The results of traditional time-weighted activity modeling showed the lowest correlation with measured values with R2 of 0.57 and 0.42 in winter and summer, respectively. For Monte Carlo simulation, high correlation was obtained (R2 of 0.93 and 0.92 in winter and summer, respectively) between percentiles of the predicted and the real exposure values. Compared with the simple ANN models, the combined use of PCA and ANN produced the most accurate results with R2 of 0.99 and RMSE lower than 15. Since the information of the input variables for the PCA-ANN model can be obtained from the questionnaire and fixed air quality monitoring sites, this technique shows a great potential in predicting personal exposure level to the air pollutant because no additional concentration measurement is needed. Rigorous air pollution managements since 2013 resulted in decreasing trend in fine particulate matter (PM2.5) in China. Regional air pollution prevention measures were extra implemented in the "2 + 26" region since 2017. However, haze pollution dramatically rebounded in the winter of 2018. Both of the observed analyses and the numerical results (basing on a global 3-D chemical transport model) demonstrated that, although intensified prevention measures existed, atmospheric circulation and local meteorological conditions still significantly influenced the variation in haze pollution. The simulated PM2.5 concentrations (with fixed emissions) driven by meteorology in 2018 were 12-15% higher than those with atmospheric circulations in 2017 both under a low and a high emission level, close to the observed 10% PM2.5 rebound. In 2018, positive sea ice anomalies around Beaufort Sea and "triple pattern" anomalies of sea surface temperature in the North Pacific and North Atlantic enhanced the anomalous anticyclonic circulations over the air-polluted region, and thus resulted in minimum surface wind speed during 1979-2018 and 16.8% shallower boundary layer than those in 2017. In the stagnated air of winter 2018, the transported dispersion of pollutant particles was weakened, however more secondary aerosols were produced by enhanced chemical reactions, which jointly contributed to the PM2.5 rebound in 2018. https://www.selleckchem.com/
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  • Methprimer predicted that IGF2-AS promoter had CpG islands and dense CG sites. Increased methylation at CpG islands present in IGF2-AS gene promoter was observed in EPL villi. CONCLUSION An increase in methylation of IGF2-AS likely leads to its downregulation in chorionic villi of EPL. The findings suggest that a deficiency of IGF2-AS in the villi is associated with human EPL. V.OBJECTIVE Preeclampsia (PE) and Metabolic syndrome (MetS) are multifactorial conditions and are major causes of maternal and neonatal morbidity and mortality worldwide. Both conditions are pro-inflammatory and can be causative factor for vascular damage. Anti-inflammatory mediators such as Resolvin also called resolution-phase interaction products may help to reduce the effect. Therefore, this study aimed to measure the serum Resolvin level in mild pre-eclamptic women with and without metabolic syndrome. MATERIAL AND METHODS A total of 293 pregnant females were recruited in this case control study. They were grouped as Group A [pre-eclamptic patients with MetS (n = 140)] and Group B [pre-eclamptic patients without MetS (n = 153)]. Preeclampsia was diagnosed according to the ACOG criteria and metabolic syndrome according the NCEP-ATP III guidelines. Anthropometric data, lipid profile, Resolvin, VEGFR and PlGF levels were tested as per manufacturer's guidelines. Data was analyzed by using SPSS version 23. In all instances, a p value of less then 0.05 was considered significant. RESULTS All females were aged matched so no difference was observed in any group. Blood pressure and triglyceride levels were significantly higher in Group A; whereas VEGFR and PlGF were lower as compared to Group B. Higher Resolvin levels were observed in Group A subjects as compared to Group B [105.19 ± 42.29 pg/ml; 46.74 ± 20.16 pg/ml; p  less then  0.01 respectively]. Resolvin levels were found to have a weak correlation with BMI (r = 0.264; p = 0.11), while a positive strong correlation with systolic BP (r = 0.722; p  less then  0.001), diastolic BP (r = 0.664; p  less then  0.001) and a negative correlation with VEGFR (r = -0.639; p  less then  0.01) and PlGF (r = -0.523; p  less then  0.01). CONCLUSION Higher resolvin levels were observed in PE subjects with metabolic syndrome and showed a significant strong positive correlation with blood pressure. Further longitudinal studies are required to identify the causal link. V.Electrical injuries can occur in pregnant women but currently their incidence is not completely known. Notwithstanding, those represent clinical important events such maternal and fetal death, which can be avoided if properly managed. The objective of this paper is to describe the results of electrical injury (high and low voltage), in pregnant women in scientific reports. A systematic search was performed with keywords "electrical injuries", "lightning injuries", "lightning strike", "pregnant women" and "pregnancy", using the databases MedLine, Scielo, Lilacs, Clinical key, Web of Science, Scopus, Springer, Science Direct, Embase and Medic Latina. Filters like language, time, design and availability of text were not used. Descriptive analyses were carried out for variables such as maternal-fetal consequences, voltage and type of exposure, based on the reports identified. From the total 74 cases identified, 71.1% survived after the exposition. From the total live-births 28.6% did not show any alteration, 7.1% presented maceration and burns, while 64.3% had another outcome. Electric injury leads to fetal compromise and death in exposed pregnant women, mainly in the first hours after the injury. However, monitoring should be continued for the risk of complications such as placenta abruption, oligohydramnios and fetal distress. It is possible an underreporting of these events. V.Accurate psychiatric diagnosis is critical for both sound clinical interventions and valid research methodology. Over the years, attempts to improve diagnostic reliability and accuracy led to the development of more explicit operationalized diagnostic criteria, starting with DSM-III, and subsequently fully structured and semistructured diagnostic interviews.1 As diagnostic assessment changed and with advances in technology, the use of computers soon developed in parallel to improve the reliability and validity of psychiatric diagnosis. As far **** as 1968, computers were used to help clinicians formulate psychiatric diagnoses, by helping them process clinical information according to diagnostic algorithms.2 Since that time, there has been an exponential rise in the use of technology in clinical research and practice. Indeed, computers have been used both to transition diagnostic interviews from paper-and-pencil format to instruments that are clinician-administered via an electronic platform and to create self-report versions of clinician-administered diagnostic interviews. We will discuss each of these in turn. The pathogenesis of diabetic kidney disease is a complex process caused by both glucotoxicity and lipotoxicity due to lipid accumulation. In cases of diabetic animals, lipid deposition is found in both tubular and glomerular portions of the kidneys, which are the major sites of diabetic nephropathy lesions. The aim of this review was to provide insights into the mechanisms that lead to the development of renal lipid accumulation and the effects of renal lipotoxicity in the diabetic condition. An increased number of lipogenic genes and a decreased number of lipid oxidation genes are also detected in diabetic kidneys, both of which lead to lipid accumulation. The induction of oxidative stress, inflammation, fibrosis and apoptosis caused by lipid accumulation and lipid metabolites is called lipotoxicity. Renal lipotoxicity due to derangement in lipid metabolism may be a pathogenic mechanism leading to diabetic nephropathy and renal dysfunction. BACKGROUND The hexosamine biosynthesis pathway (HBP) is hypothesized to mediate many of the adverse effects of hyperglycemia. We have shown previously that increased flux through this pathway leads to induction of the growth factor transforming growth factor-α (TGF-α) and to insulin resistance in cultured cells and transgenic ****. TGF-β is regulated by glucose and is involved in the development of diabetic nephropathy. We therefore hypothesized that the HBP was involved in the regulation of TGF-β by glucose in rat vascular and kidney cells. https://www.selleckchem.com/products/ff-10101.html METHODS A plasmid containing the promoter region of TGF-β1 cloned upstream of the firefly luciferase gene was electroporated into rat aortic smooth muscle, mesangial, and proximal tubule cells. Luciferase activity was measured in cellular extracts from cells cultured in varying concentrations of glucose and glucosamine. RESULTS Glucose treatment of all cultured cells led to a time- and dose-dependent stimulation in TGF-β1 transcriptional activity, with high (20 mM) glucose causing a 1.
    Methprimer predicted that IGF2-AS promoter had CpG islands and dense CG sites. Increased methylation at CpG islands present in IGF2-AS gene promoter was observed in EPL villi. CONCLUSION An increase in methylation of IGF2-AS likely leads to its downregulation in chorionic villi of EPL. The findings suggest that a deficiency of IGF2-AS in the villi is associated with human EPL. V.OBJECTIVE Preeclampsia (PE) and Metabolic syndrome (MetS) are multifactorial conditions and are major causes of maternal and neonatal morbidity and mortality worldwide. Both conditions are pro-inflammatory and can be causative factor for vascular damage. Anti-inflammatory mediators such as Resolvin also called resolution-phase interaction products may help to reduce the effect. Therefore, this study aimed to measure the serum Resolvin level in mild pre-eclamptic women with and without metabolic syndrome. MATERIAL AND METHODS A total of 293 pregnant females were recruited in this case control study. They were grouped as Group A [pre-eclamptic patients with MetS (n = 140)] and Group B [pre-eclamptic patients without MetS (n = 153)]. Preeclampsia was diagnosed according to the ACOG criteria and metabolic syndrome according the NCEP-ATP III guidelines. Anthropometric data, lipid profile, Resolvin, VEGFR and PlGF levels were tested as per manufacturer's guidelines. Data was analyzed by using SPSS version 23. In all instances, a p value of less then 0.05 was considered significant. RESULTS All females were aged matched so no difference was observed in any group. Blood pressure and triglyceride levels were significantly higher in Group A; whereas VEGFR and PlGF were lower as compared to Group B. Higher Resolvin levels were observed in Group A subjects as compared to Group B [105.19 ± 42.29 pg/ml; 46.74 ± 20.16 pg/ml; p  less then  0.01 respectively]. Resolvin levels were found to have a weak correlation with BMI (r = 0.264; p = 0.11), while a positive strong correlation with systolic BP (r = 0.722; p  less then  0.001), diastolic BP (r = 0.664; p  less then  0.001) and a negative correlation with VEGFR (r = -0.639; p  less then  0.01) and PlGF (r = -0.523; p  less then  0.01). CONCLUSION Higher resolvin levels were observed in PE subjects with metabolic syndrome and showed a significant strong positive correlation with blood pressure. Further longitudinal studies are required to identify the causal link. V.Electrical injuries can occur in pregnant women but currently their incidence is not completely known. Notwithstanding, those represent clinical important events such maternal and fetal death, which can be avoided if properly managed. The objective of this paper is to describe the results of electrical injury (high and low voltage), in pregnant women in scientific reports. A systematic search was performed with keywords "electrical injuries", "lightning injuries", "lightning strike", "pregnant women" and "pregnancy", using the databases MedLine, Scielo, Lilacs, Clinical key, Web of Science, Scopus, Springer, Science Direct, Embase and Medic Latina. Filters like language, time, design and availability of text were not used. Descriptive analyses were carried out for variables such as maternal-fetal consequences, voltage and type of exposure, based on the reports identified. From the total 74 cases identified, 71.1% survived after the exposition. From the total live-births 28.6% did not show any alteration, 7.1% presented maceration and burns, while 64.3% had another outcome. Electric injury leads to fetal compromise and death in exposed pregnant women, mainly in the first hours after the injury. However, monitoring should be continued for the risk of complications such as placenta abruption, oligohydramnios and fetal distress. It is possible an underreporting of these events. V.Accurate psychiatric diagnosis is critical for both sound clinical interventions and valid research methodology. Over the years, attempts to improve diagnostic reliability and accuracy led to the development of more explicit operationalized diagnostic criteria, starting with DSM-III, and subsequently fully structured and semistructured diagnostic interviews.1 As diagnostic assessment changed and with advances in technology, the use of computers soon developed in parallel to improve the reliability and validity of psychiatric diagnosis. As far back as 1968, computers were used to help clinicians formulate psychiatric diagnoses, by helping them process clinical information according to diagnostic algorithms.2 Since that time, there has been an exponential rise in the use of technology in clinical research and practice. Indeed, computers have been used both to transition diagnostic interviews from paper-and-pencil format to instruments that are clinician-administered via an electronic platform and to create self-report versions of clinician-administered diagnostic interviews. We will discuss each of these in turn. The pathogenesis of diabetic kidney disease is a complex process caused by both glucotoxicity and lipotoxicity due to lipid accumulation. In cases of diabetic animals, lipid deposition is found in both tubular and glomerular portions of the kidneys, which are the major sites of diabetic nephropathy lesions. The aim of this review was to provide insights into the mechanisms that lead to the development of renal lipid accumulation and the effects of renal lipotoxicity in the diabetic condition. An increased number of lipogenic genes and a decreased number of lipid oxidation genes are also detected in diabetic kidneys, both of which lead to lipid accumulation. The induction of oxidative stress, inflammation, fibrosis and apoptosis caused by lipid accumulation and lipid metabolites is called lipotoxicity. Renal lipotoxicity due to derangement in lipid metabolism may be a pathogenic mechanism leading to diabetic nephropathy and renal dysfunction. BACKGROUND The hexosamine biosynthesis pathway (HBP) is hypothesized to mediate many of the adverse effects of hyperglycemia. We have shown previously that increased flux through this pathway leads to induction of the growth factor transforming growth factor-α (TGF-α) and to insulin resistance in cultured cells and transgenic mice. TGF-β is regulated by glucose and is involved in the development of diabetic nephropathy. We therefore hypothesized that the HBP was involved in the regulation of TGF-β by glucose in rat vascular and kidney cells. https://www.selleckchem.com/products/ff-10101.html METHODS A plasmid containing the promoter region of TGF-β1 cloned upstream of the firefly luciferase gene was electroporated into rat aortic smooth muscle, mesangial, and proximal tubule cells. Luciferase activity was measured in cellular extracts from cells cultured in varying concentrations of glucose and glucosamine. RESULTS Glucose treatment of all cultured cells led to a time- and dose-dependent stimulation in TGF-β1 transcriptional activity, with high (20 mM) glucose causing a 1.
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  • In this study, we performed a single-centered study of 307 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infected patients. It was found that co-infection of SARS-CoV-2 and influenza virus was common during COVID-19 outbreak. And patients coinfected with SARS-CoV-2 and influenza B virus have a higher risk of developing poor outcomes so a detection of both viruses was recommended during COVID-19 outbreak.Post-stroke fatigue (PSF) is prevalent among stroke patients, but its mechanisms are poorly understood. Many patients with PSF experience cognitive difficulties, but studies aiming to identify cognitive correlates of PSF have been largely inconclusive. With the aim of characterizing the relationship between subjective fatigue and attentional function, we collected behavioral data using the attention network test (ANT) and self-reported fatigue scores using the fatigue severity scale (FSS) from 53 stroke patients. In order to evaluate the utility and added value of computational modeling for delineating specific underpinnings of response time (RT) distributions we fitted a hierarchical drift diffusion model (hDDM) to the ANT data. Results revealed a relationship between fatigue and RT distributions. Specifically, there was a positive interaction between FSS score and elapsed time on RT. Group analyses suggested that patients without PSF increased speed during the course of the session, while patients with PSF did not show any changes. In line with the conventional analyses based on observed RT, the best fitting hDD model identified an interaction between elapsed time and fatigue on non-decision time, suggesting an increase in time needed for stimulus encoding and response execution rather than cognitive information processing and evidence accumulation. These novel results demonstrate the significance of considering the sustained nature of effort when defining the cognitive phenotype of PSF, intuitively indicating that the cognitive phenotype of fatigue entails an increased vulnerability to sustained effort, and suggest that the use of computational approaches offers a further characterization of specific processes underlying behavioral differences.We thank Dr. Sundaram for their interest in our recent article, "Endoscopic treatment of proton pump inhibitor-refractory gastroesophageal reflux disease with anti-reflux mucosectomy Experience of 109 cases" 1 ⁾. At first, the number of patients showing response to AET was about 74% (20/27). Dr. Sundaram mentioned about the learning curve for the procedure. In our hospital, the operator of ARMS is an expert endoscopist, who has been performing EMR-C, ESD and POEM.Transferring bioprocesses from lab to industrial scale without loss of performance is key for the successful implementation of novel production approaches. Because mixing and mass transfer is usually hampered in large scale, cells experience heterogeneities eventually causing deteriorated yields, that is, reduced titers, productivities, and sugar-to-product conversions. https://www.selleckchem.com/products/cd437.html Accordingly, reliable and easy-to-implement tools for a priori prediction of large-scale performance based on dry and wet-lab tests are heavily needed. This study makes use of computational fluid dynamic simulations of a multiphase multi-impeller stirred tank in pilot scale. So-called lifelines, records of 120,000 Corynebacterium glutamicum cells experiencing fluctuating environmental conditions, were identified and used to properly design wet-lab scale-down (SD) devices. Physical parameters such as power input, gas hold up, k L a , and mixing time showed good agreement with experimental measurements. Analyzing the late fed-batch cultivation revealed that the complex double gradient of glucose and oxygen can be translated into a wet-lab SD setup with only few compartments. Most remarkably, the comparison of different mesh sizes outlined that even the coarsest approach with a mesh density of 1.12 × 10 5 # / m 3 was sufficient to properly predict physical and biological readouts. Accordingly, the approach offers the potential for the thorough analysis of realistic industrial case scenarios.Recently, spinal epidural neurostimulation is being considered for rehabilitation of persons suffering from partial spinal-cord injury. The neurostimulator must be programmed by a neurosurgeon, yet little work has been done to develop rigorous methods for optimally programming the device. We propose an adaptive design to efficiently optimize programming of the neurostimulator based on specified interim evaluations of patient reported preferences. Preferences for the eligible device configurations are estimated after each interim analysis through a conditionally autoregressive model that assumes preference for one configuration is related to preferences for neighboring configurations. Using the adaptively updated preferences, a group of configurations is programmed into the device for the patient to evaluate during the next follow-up period. This selection is based on a balance of device exploration and preference maximization. We repeat this process until a specified stopping rule or the calibration end is reached. We show simulation studies to evaluate the overall quality of the adaptive calibration for various configuration selection strategies and the effects of stopping it early.The outbreak of SARS-CoV-2 has become a pandemic with significant mortality. Published studies described clinical characteristics of the disease contain small cohorts from individual centers or larger series consisting of mixed series from multiple different hospitals. We report here analyses of mortality and disease severity among 402 patients from a single hospital. The cohort includes 297 patients with confirmed and 105 with clinical diagnosis. The latter group consists of cases with inconclusive nucleic acid test but meeting the criteria for clinical diagnosis. Data are compared between sexes and among different age groups. The overall case fatality is 5.2%. However, age at 70 years or older is associated with a significantly higher mortality (17.8%) and higher rate of severe and critical illness (57.5%). Case fatality is 8% in patients 50 years of age or older, and 1.2% in those younger than 50 years. In addition, case fatality is 7.6% in male patients, as opposed to 2.9% in females, demonstrating a clear sex difference.
    In this study, we performed a single-centered study of 307 severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infected patients. It was found that co-infection of SARS-CoV-2 and influenza virus was common during COVID-19 outbreak. And patients coinfected with SARS-CoV-2 and influenza B virus have a higher risk of developing poor outcomes so a detection of both viruses was recommended during COVID-19 outbreak.Post-stroke fatigue (PSF) is prevalent among stroke patients, but its mechanisms are poorly understood. Many patients with PSF experience cognitive difficulties, but studies aiming to identify cognitive correlates of PSF have been largely inconclusive. With the aim of characterizing the relationship between subjective fatigue and attentional function, we collected behavioral data using the attention network test (ANT) and self-reported fatigue scores using the fatigue severity scale (FSS) from 53 stroke patients. In order to evaluate the utility and added value of computational modeling for delineating specific underpinnings of response time (RT) distributions we fitted a hierarchical drift diffusion model (hDDM) to the ANT data. Results revealed a relationship between fatigue and RT distributions. Specifically, there was a positive interaction between FSS score and elapsed time on RT. Group analyses suggested that patients without PSF increased speed during the course of the session, while patients with PSF did not show any changes. In line with the conventional analyses based on observed RT, the best fitting hDD model identified an interaction between elapsed time and fatigue on non-decision time, suggesting an increase in time needed for stimulus encoding and response execution rather than cognitive information processing and evidence accumulation. These novel results demonstrate the significance of considering the sustained nature of effort when defining the cognitive phenotype of PSF, intuitively indicating that the cognitive phenotype of fatigue entails an increased vulnerability to sustained effort, and suggest that the use of computational approaches offers a further characterization of specific processes underlying behavioral differences.We thank Dr. Sundaram for their interest in our recent article, "Endoscopic treatment of proton pump inhibitor-refractory gastroesophageal reflux disease with anti-reflux mucosectomy Experience of 109 cases" 1 ⁾. At first, the number of patients showing response to AET was about 74% (20/27). Dr. Sundaram mentioned about the learning curve for the procedure. In our hospital, the operator of ARMS is an expert endoscopist, who has been performing EMR-C, ESD and POEM.Transferring bioprocesses from lab to industrial scale without loss of performance is key for the successful implementation of novel production approaches. Because mixing and mass transfer is usually hampered in large scale, cells experience heterogeneities eventually causing deteriorated yields, that is, reduced titers, productivities, and sugar-to-product conversions. https://www.selleckchem.com/products/cd437.html Accordingly, reliable and easy-to-implement tools for a priori prediction of large-scale performance based on dry and wet-lab tests are heavily needed. This study makes use of computational fluid dynamic simulations of a multiphase multi-impeller stirred tank in pilot scale. So-called lifelines, records of 120,000 Corynebacterium glutamicum cells experiencing fluctuating environmental conditions, were identified and used to properly design wet-lab scale-down (SD) devices. Physical parameters such as power input, gas hold up, k L a , and mixing time showed good agreement with experimental measurements. Analyzing the late fed-batch cultivation revealed that the complex double gradient of glucose and oxygen can be translated into a wet-lab SD setup with only few compartments. Most remarkably, the comparison of different mesh sizes outlined that even the coarsest approach with a mesh density of 1.12 × 10 5 # / m 3 was sufficient to properly predict physical and biological readouts. Accordingly, the approach offers the potential for the thorough analysis of realistic industrial case scenarios.Recently, spinal epidural neurostimulation is being considered for rehabilitation of persons suffering from partial spinal-cord injury. The neurostimulator must be programmed by a neurosurgeon, yet little work has been done to develop rigorous methods for optimally programming the device. We propose an adaptive design to efficiently optimize programming of the neurostimulator based on specified interim evaluations of patient reported preferences. Preferences for the eligible device configurations are estimated after each interim analysis through a conditionally autoregressive model that assumes preference for one configuration is related to preferences for neighboring configurations. Using the adaptively updated preferences, a group of configurations is programmed into the device for the patient to evaluate during the next follow-up period. This selection is based on a balance of device exploration and preference maximization. We repeat this process until a specified stopping rule or the calibration end is reached. We show simulation studies to evaluate the overall quality of the adaptive calibration for various configuration selection strategies and the effects of stopping it early.The outbreak of SARS-CoV-2 has become a pandemic with significant mortality. Published studies described clinical characteristics of the disease contain small cohorts from individual centers or larger series consisting of mixed series from multiple different hospitals. We report here analyses of mortality and disease severity among 402 patients from a single hospital. The cohort includes 297 patients with confirmed and 105 with clinical diagnosis. The latter group consists of cases with inconclusive nucleic acid test but meeting the criteria for clinical diagnosis. Data are compared between sexes and among different age groups. The overall case fatality is 5.2%. However, age at 70 years or older is associated with a significantly higher mortality (17.8%) and higher rate of severe and critical illness (57.5%). Case fatality is 8% in patients 50 years of age or older, and 1.2% in those younger than 50 years. In addition, case fatality is 7.6% in male patients, as opposed to 2.9% in females, demonstrating a clear sex difference.
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  • Inorganic carbon exists in various dissolved, gaseous and solid phase forms in natural waters and soils. It is important to accurately measure and model these forms to understand system responses to global climate change. The carbonate system can, in theory, be fully constrained and modelled by measuring at least two of out of the following four parameters partial pressure (pCO2), total alkalinity (TA), pH and dissolved inorganic carbon (DIC) but this has not been demonstrated in soils. In this study, this "internal consistency" of the soil carbonate system was examined by predicting pH of soil extracts from laboratory measurement of TA through alkalinity titration for solutions in which pCO2 was fixed through equilibrating the soil solution with air with a known pCO2. This predicted pH (pHCO2) was compared with pH measured on the same soil extracts using spectrophotometric and glass electrode methods (pHspec and pHelec). Discrepancy between measured and calculated pH was within 0.00-0.1 pH unit for most samples. However, more deviation was observed for those sample with low alkalinity (≤ 0.5 meq L-1). This is likely attributable to an effect of dissolved organic matter, which can contribute alkalinity not considered in the thermodynamic carbonate model calculations; further research is required to resolve this problem. The effects of increasing soil pCO2 was modelled to illustrate how internally consistent models can be used to predict risks of pH declines and carbonate mineral dissolution in some soils.We studied Finnish 18-year-old males attending obligatory military call-up assessments in 1999 (n = 2340) and 2009 (n = 4309) on time-trend changes in psychosocial well-being, psychopathology, substance use, suicidality, bullying, and sense of coherence. Subjects filled in questionnaires, including the Young Adult Self-Report (YASR) for psychopathology and the Orientation to Life Questionnaire (SOC-13) for sense of coherence. The prevalence of minor mental health problems in the last 6 months decreased from 22.3% in 1999 to 18.6% in 2009 (OR 0.8, 95% CI 0.7-0.9), whereas severe mental health problems remained stable. Suicidal thoughts decreased from 5.7 to 3.7% (OR 0.6, 95% CI 0.5-0.8). https://www.selleckchem.com/products/gilteritinib-asp2215.html The use of illicit drugs decreased from 6.0 to 4.7% (OR 0.8, 95% CI 0.6-0.95), but being drunk at least once a week increased from 10.3 to 13.4% (OR 1.3, 95% CI 1.0-1.5). Attention problems increased in YASR syndrome domains (mean score 2.9 vs 3.2, p  less then  0.001) and so did somatic complains (mean score 1.7 vs 1.9, p = 0.005). The SOC-13 scores remained stable. The percentage of males who had studied during the past 6 months increased from 91.4 to 93.4% (OR 1.3, 95% CI 1.1-1.6), while being employed decreased from 64.9 to 49.4% (OR 0.5, 95% CI 0.5-0.6). The positive findings included reductions in the prevalence of suicidal thoughts and the use of illicit drugs, but being drunk at least once a week increased. Self-reported somatic problems and attention problems increased. Despite changes in society and family structures, there were only minor overall changes in psychopathology.Adolescence is a vulnerable period for psychological distress. This study aimed to comprehensively investigate the distribution of major stress-causing factors and their correlates in a large population of adolescents. A computerized self-report questionnaire was completed by 291,110 participating adolescents over a 4-year period using a cross-sectional study design. The questionnaire included items assessing demographic variables, major stressors, severity of perceived stress, and mental health outcomes such as depressed mood, suicidal ideation, and attempts. Among the major stressors, schoolwork/career was the most predominant (54.7%). However, the odds ratios for depressed mood and suicidal ideation were the highest in the stressor of conflict with peers (OR = 1.97 for depressed mood and OR = 2.00 for suicidal ideation), followed by family circumstances (OR = 1.77 and 1.94 for depressed mood and suicidal ideation, respectively). Conversely, schoolwork/career presented significantly lower odds ratios of 0.87 and 0.87 for depressed mood and suicidal ideation, respectively. This study provides important information on psychological distress related to adolescents' mental health. Although school/career was the most prevalent source of psychological stress, the odds ratios for negative health outcomes of adolescents were higher in interpersonal problems such as conflicts with parents and peers and family circumstances. The present findings might help parents and clinicians understand the psychological distress of adolescents and improve their mental health.Since the publication of the article, the authors found a small problem with Fig. 7e. Unfortunately, Fig. 7e did not contain the correct images. The correct images are shown below and do not change the conclusions.The relationship between high-risk-human-papillomavirus (HR-HPV) viral loads and residual/recurrence lesion is uncertain. This study aimed to evaluate the clinical value of HR-HPV viral loads to predict the residual/recurrence lesions among women with high-grade squamous lesions or worse (≥ HSIL) after surgery. Finally, 301 women who underwent primary screening of cervical cancer using polymerase-chain-reaction-(PCR)-reverse-dot-blot-(RDB) human papillomavirus (HPV) genotyping and cytology assays were enrolled. They received surgery and took HR-HPV viral loads with a BioPerfectus Multiplex Real-Time PCR assay. Colposcopy biopsies were performed in patients with HPV-16/18(+) and/or TCT ≥ ASCUS with HR-HPV(+). The risk of HR-HPV viral loads and potentials factors for residual/recurrence lesions were analyzed and the optimal cut-off values of HR-HPV viral loads were calculated. The significant differences were found in residual/recurrence lesions among patients with different ages, margin status, cytology and HR-HPV at 6 months (all P  less then  0.05). Interestingly, HPV viral loads were observed significant differences in the group of residual lesions, not recurrence group. Furthermore, except for HPV-31/33, the viral loads of HP-16/52/58 were significant differences in residual lesions. The cut-off level of HR-HPV viral loads was 5.22 copies/10,000 cells, providing viable triage for the risk of residual lesions. Compared with different follow-up methods, the HR-HPV viral loads ≥ 5.22copies/10,000 cells (HR 3.39, 95% CI 1.57-7.35) had a higher risk for developing residual lesions. HR-HPV viral loads can be a reliable predictor of residual lesions. Furthermore, women with viral loads ≥ 5.22 copies/10,000 cells may have higher risk for residual disease and should be give a more aggressive treatment and follow-up strategy.
    Inorganic carbon exists in various dissolved, gaseous and solid phase forms in natural waters and soils. It is important to accurately measure and model these forms to understand system responses to global climate change. The carbonate system can, in theory, be fully constrained and modelled by measuring at least two of out of the following four parameters partial pressure (pCO2), total alkalinity (TA), pH and dissolved inorganic carbon (DIC) but this has not been demonstrated in soils. In this study, this "internal consistency" of the soil carbonate system was examined by predicting pH of soil extracts from laboratory measurement of TA through alkalinity titration for solutions in which pCO2 was fixed through equilibrating the soil solution with air with a known pCO2. This predicted pH (pHCO2) was compared with pH measured on the same soil extracts using spectrophotometric and glass electrode methods (pHspec and pHelec). Discrepancy between measured and calculated pH was within 0.00-0.1 pH unit for most samples. However, more deviation was observed for those sample with low alkalinity (≤ 0.5 meq L-1). This is likely attributable to an effect of dissolved organic matter, which can contribute alkalinity not considered in the thermodynamic carbonate model calculations; further research is required to resolve this problem. The effects of increasing soil pCO2 was modelled to illustrate how internally consistent models can be used to predict risks of pH declines and carbonate mineral dissolution in some soils.We studied Finnish 18-year-old males attending obligatory military call-up assessments in 1999 (n = 2340) and 2009 (n = 4309) on time-trend changes in psychosocial well-being, psychopathology, substance use, suicidality, bullying, and sense of coherence. Subjects filled in questionnaires, including the Young Adult Self-Report (YASR) for psychopathology and the Orientation to Life Questionnaire (SOC-13) for sense of coherence. The prevalence of minor mental health problems in the last 6 months decreased from 22.3% in 1999 to 18.6% in 2009 (OR 0.8, 95% CI 0.7-0.9), whereas severe mental health problems remained stable. Suicidal thoughts decreased from 5.7 to 3.7% (OR 0.6, 95% CI 0.5-0.8). https://www.selleckchem.com/products/gilteritinib-asp2215.html The use of illicit drugs decreased from 6.0 to 4.7% (OR 0.8, 95% CI 0.6-0.95), but being drunk at least once a week increased from 10.3 to 13.4% (OR 1.3, 95% CI 1.0-1.5). Attention problems increased in YASR syndrome domains (mean score 2.9 vs 3.2, p  less then  0.001) and so did somatic complains (mean score 1.7 vs 1.9, p = 0.005). The SOC-13 scores remained stable. The percentage of males who had studied during the past 6 months increased from 91.4 to 93.4% (OR 1.3, 95% CI 1.1-1.6), while being employed decreased from 64.9 to 49.4% (OR 0.5, 95% CI 0.5-0.6). The positive findings included reductions in the prevalence of suicidal thoughts and the use of illicit drugs, but being drunk at least once a week increased. Self-reported somatic problems and attention problems increased. Despite changes in society and family structures, there were only minor overall changes in psychopathology.Adolescence is a vulnerable period for psychological distress. This study aimed to comprehensively investigate the distribution of major stress-causing factors and their correlates in a large population of adolescents. A computerized self-report questionnaire was completed by 291,110 participating adolescents over a 4-year period using a cross-sectional study design. The questionnaire included items assessing demographic variables, major stressors, severity of perceived stress, and mental health outcomes such as depressed mood, suicidal ideation, and attempts. Among the major stressors, schoolwork/career was the most predominant (54.7%). However, the odds ratios for depressed mood and suicidal ideation were the highest in the stressor of conflict with peers (OR = 1.97 for depressed mood and OR = 2.00 for suicidal ideation), followed by family circumstances (OR = 1.77 and 1.94 for depressed mood and suicidal ideation, respectively). Conversely, schoolwork/career presented significantly lower odds ratios of 0.87 and 0.87 for depressed mood and suicidal ideation, respectively. This study provides important information on psychological distress related to adolescents' mental health. Although school/career was the most prevalent source of psychological stress, the odds ratios for negative health outcomes of adolescents were higher in interpersonal problems such as conflicts with parents and peers and family circumstances. The present findings might help parents and clinicians understand the psychological distress of adolescents and improve their mental health.Since the publication of the article, the authors found a small problem with Fig. 7e. Unfortunately, Fig. 7e did not contain the correct images. The correct images are shown below and do not change the conclusions.The relationship between high-risk-human-papillomavirus (HR-HPV) viral loads and residual/recurrence lesion is uncertain. This study aimed to evaluate the clinical value of HR-HPV viral loads to predict the residual/recurrence lesions among women with high-grade squamous lesions or worse (≥ HSIL) after surgery. Finally, 301 women who underwent primary screening of cervical cancer using polymerase-chain-reaction-(PCR)-reverse-dot-blot-(RDB) human papillomavirus (HPV) genotyping and cytology assays were enrolled. They received surgery and took HR-HPV viral loads with a BioPerfectus Multiplex Real-Time PCR assay. Colposcopy biopsies were performed in patients with HPV-16/18(+) and/or TCT ≥ ASCUS with HR-HPV(+). The risk of HR-HPV viral loads and potentials factors for residual/recurrence lesions were analyzed and the optimal cut-off values of HR-HPV viral loads were calculated. The significant differences were found in residual/recurrence lesions among patients with different ages, margin status, cytology and HR-HPV at 6 months (all P  less then  0.05). Interestingly, HPV viral loads were observed significant differences in the group of residual lesions, not recurrence group. Furthermore, except for HPV-31/33, the viral loads of HP-16/52/58 were significant differences in residual lesions. The cut-off level of HR-HPV viral loads was 5.22 copies/10,000 cells, providing viable triage for the risk of residual lesions. Compared with different follow-up methods, the HR-HPV viral loads ≥ 5.22copies/10,000 cells (HR 3.39, 95% CI 1.57-7.35) had a higher risk for developing residual lesions. HR-HPV viral loads can be a reliable predictor of residual lesions. Furthermore, women with viral loads ≥ 5.22 copies/10,000 cells may have higher risk for residual disease and should be give a more aggressive treatment and follow-up strategy.
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  • Objectives To examine how 'gendered ways of thinking' relate to role models in medical education. Methods This study employed an explorative, qualitative, and cross-sectional design. A total of 57 interviews were held with medical students (28 interviews) and with faculty members (29 interviews) at a Swedish medical school. Participants were asked to describe their role models and the attributes that made certain individuals role models. Data were analysed using an inductive approach in three separate steps that explored the relationship between role models and gender. Results Males do not generally consider female doctors as role models, and male role models are generally viewed as more admirable than female role models. This was shown in all steps of the analysis and most prominently in how male role models were described as qualitatively more admirable than female role models. Male role models are thus more common (for male and female students) and described as more admirable. The results point to the persistence of 'gendered ways of thinking' that subtly shape medical students. Conclusions Gendering role models is disadvantageous to female doctors in several ways, so the results have implications for women's career paths and opportunities. The results can thus form a basis for discussing and teaching the importance of gender in role modelling and in medical education in general.Background and aims This prospective study aimed to assess pressure pain thresholds (PPTs) by pressure algometry and the correlation to postoperative pain in children undergoing orthopaedic surgery. We hypothesized, that the PPTs would decline immediately after elective orthopaedic surgery and return to baseline values at follow-up. Methods Thirty children aged 6-16 years were included. PPTs and intensity of pain (Numerical Rating Scale, NRS) were assessed 3-6 weeks before surgery (baseline), 1-2 h before surgery (Day 0), the first postoperative day (Day 1) and 6-12 weeks after surgery (Follow-up). Results A significant difference of PPTs between the four assessments was seen using the Friedman test for detecting differences across multiple tests and Wilcoxon signed-rank test with a Bonferroni adjustment. The changes in PPTs between baseline (PPTcrus = 248 kPa, PPTthenar = 195 kPa) and day 1 (PPTcrus = 146 kPa, PPTthenar = 161 kPa) showed a decline of PPTs as hypothesized (Zcrus = 2.373, p = 0.018; Zthenar = operative pain medication might play a role in the perception of pain and need further investigation.The microbiota and microbiome and disruption of the gut-brain axis were linked to various metabolic, immunological, physiological, neurodevelopmental, and neuropsychiatric diseases. After a brief review of the relevant literature, we present our hypothesis that intestinal serotonin, produced by intestinal enterochromaffin cells, picked up and stored by circulating platelets, participates and has an important role in the regulation of membrane permeability in the intestine, brain, and other organs. In addition, intestinal serotonin may act as a hormone-like continuous regulatory signal for the whole body, including the brain. This regulatory signal function is mediated by platelets and is primarily dependent on and reflects the intestine's actual health condition. This hypothesis may partially explain why gut dysbiosis could be linked to various human pathological conditions as well as neurodevelopmental and neuropsychiatric disorders.Background The aim of this study was to compare Philips and TomTec two-dimensional speckle tracking echocardiography (2D-STE) software measurements of strain and dyssynchrony values in healthy fetuses. https://www.selleckchem.com/products/Vorinostat-saha.html Methods This was an explorative observational study in which the echocardiographic data of 93 healthy fetuses between the 20th and 38th week of gestation were determined from a four-chamber view using 2D speckle tracking. The global and segmental longitudinal strain values of both ventricles, inter-ventricular and left intra-ventricular dyssynchrony were analyzed using QLab version 10.8 (Philips Medical Systems, Andover, MA, USA) and TomTec-Arena version 2.30 (TomTec, Unterschleißheim, Germany). Results TomTec showed persistently lower values for all of the assessed strain and dyssynchrony variables. For all variables, the bias between vendors tended to increase with gestational age, though not to a significant extent. Left ventricular dyssynchrony and longitudinal strain within the mid segment of the septum correlated best between vendors; however, the limits of agreement were wide in both cases. None of the variables assessed in the two-chamber view compared well between QLAB and TomTec. Conclusion Speckle tracking software cannot be used interchangeably between vendors. Further investigations are necessary to standardize fetal 2D-STE.Objective The present study aimed at determining predictors of sleep behaviour change among dental students using the multi-theory model (MTM) of health behaviour change in India. Methods This study was conducted among 535 students of a dental college in India. Predictors of sleep behaviour change were assessed using a validated 30-item questionnaire. Theoretical predictors of sleep behaviour were modelled using multiple linear regression. Results The response rate was 95.10%. A total of 449 of 535 students filled in the form, out of which 127 (28.30%) were inadequate sleepers. Inadequate sleep behaviour showed a strong preponderance within the male population (81.9%). The percentage of inadequate sleepers was highest in second year undergraduates and those obtaining between 60 and 69.9% marks in previous exams. For the initiation model, the standardised regression coefficients (β) for the three constructs - participatory dialogue, behavioural confidence and change in physical environment were 0.050 [p = 0.579, 95% (confidence interval)CI -0.039 to 0.070], 0.213 (p = 0.019, 95% CI 0.029-0.320) and 0.062 (p = 0.496, 95% CI -0.073 to 0.149), respectively. For the sustenance model, β for emotional transformation, practice for change and changes in social environment was 0.192 (p = 0.047, 95% CI 0.002-0.250), 0.175 (p = 0.091, 95% CI -0.024 to 0.318) and 0.046 (p = 0.623, 95% CI -0.094 to 0.157), respectively. Conclusion Improving behavioural confidence and bringing about emotional transformation were significant predictors for a reduction in inadequate sleep behaviour in dental students. Working on these predictors may improve sleep behaviours in dental students.
    Objectives To examine how 'gendered ways of thinking' relate to role models in medical education. Methods This study employed an explorative, qualitative, and cross-sectional design. A total of 57 interviews were held with medical students (28 interviews) and with faculty members (29 interviews) at a Swedish medical school. Participants were asked to describe their role models and the attributes that made certain individuals role models. Data were analysed using an inductive approach in three separate steps that explored the relationship between role models and gender. Results Males do not generally consider female doctors as role models, and male role models are generally viewed as more admirable than female role models. This was shown in all steps of the analysis and most prominently in how male role models were described as qualitatively more admirable than female role models. Male role models are thus more common (for male and female students) and described as more admirable. The results point to the persistence of 'gendered ways of thinking' that subtly shape medical students. Conclusions Gendering role models is disadvantageous to female doctors in several ways, so the results have implications for women's career paths and opportunities. The results can thus form a basis for discussing and teaching the importance of gender in role modelling and in medical education in general.Background and aims This prospective study aimed to assess pressure pain thresholds (PPTs) by pressure algometry and the correlation to postoperative pain in children undergoing orthopaedic surgery. We hypothesized, that the PPTs would decline immediately after elective orthopaedic surgery and return to baseline values at follow-up. Methods Thirty children aged 6-16 years were included. PPTs and intensity of pain (Numerical Rating Scale, NRS) were assessed 3-6 weeks before surgery (baseline), 1-2 h before surgery (Day 0), the first postoperative day (Day 1) and 6-12 weeks after surgery (Follow-up). Results A significant difference of PPTs between the four assessments was seen using the Friedman test for detecting differences across multiple tests and Wilcoxon signed-rank test with a Bonferroni adjustment. The changes in PPTs between baseline (PPTcrus = 248 kPa, PPTthenar = 195 kPa) and day 1 (PPTcrus = 146 kPa, PPTthenar = 161 kPa) showed a decline of PPTs as hypothesized (Zcrus = 2.373, p = 0.018; Zthenar = operative pain medication might play a role in the perception of pain and need further investigation.The microbiota and microbiome and disruption of the gut-brain axis were linked to various metabolic, immunological, physiological, neurodevelopmental, and neuropsychiatric diseases. After a brief review of the relevant literature, we present our hypothesis that intestinal serotonin, produced by intestinal enterochromaffin cells, picked up and stored by circulating platelets, participates and has an important role in the regulation of membrane permeability in the intestine, brain, and other organs. In addition, intestinal serotonin may act as a hormone-like continuous regulatory signal for the whole body, including the brain. This regulatory signal function is mediated by platelets and is primarily dependent on and reflects the intestine's actual health condition. This hypothesis may partially explain why gut dysbiosis could be linked to various human pathological conditions as well as neurodevelopmental and neuropsychiatric disorders.Background The aim of this study was to compare Philips and TomTec two-dimensional speckle tracking echocardiography (2D-STE) software measurements of strain and dyssynchrony values in healthy fetuses. https://www.selleckchem.com/products/Vorinostat-saha.html Methods This was an explorative observational study in which the echocardiographic data of 93 healthy fetuses between the 20th and 38th week of gestation were determined from a four-chamber view using 2D speckle tracking. The global and segmental longitudinal strain values of both ventricles, inter-ventricular and left intra-ventricular dyssynchrony were analyzed using QLab version 10.8 (Philips Medical Systems, Andover, MA, USA) and TomTec-Arena version 2.30 (TomTec, Unterschleißheim, Germany). Results TomTec showed persistently lower values for all of the assessed strain and dyssynchrony variables. For all variables, the bias between vendors tended to increase with gestational age, though not to a significant extent. Left ventricular dyssynchrony and longitudinal strain within the mid segment of the septum correlated best between vendors; however, the limits of agreement were wide in both cases. None of the variables assessed in the two-chamber view compared well between QLAB and TomTec. Conclusion Speckle tracking software cannot be used interchangeably between vendors. Further investigations are necessary to standardize fetal 2D-STE.Objective The present study aimed at determining predictors of sleep behaviour change among dental students using the multi-theory model (MTM) of health behaviour change in India. Methods This study was conducted among 535 students of a dental college in India. Predictors of sleep behaviour change were assessed using a validated 30-item questionnaire. Theoretical predictors of sleep behaviour were modelled using multiple linear regression. Results The response rate was 95.10%. A total of 449 of 535 students filled in the form, out of which 127 (28.30%) were inadequate sleepers. Inadequate sleep behaviour showed a strong preponderance within the male population (81.9%). The percentage of inadequate sleepers was highest in second year undergraduates and those obtaining between 60 and 69.9% marks in previous exams. For the initiation model, the standardised regression coefficients (β) for the three constructs - participatory dialogue, behavioural confidence and change in physical environment were 0.050 [p = 0.579, 95% (confidence interval)CI -0.039 to 0.070], 0.213 (p = 0.019, 95% CI 0.029-0.320) and 0.062 (p = 0.496, 95% CI -0.073 to 0.149), respectively. For the sustenance model, β for emotional transformation, practice for change and changes in social environment was 0.192 (p = 0.047, 95% CI 0.002-0.250), 0.175 (p = 0.091, 95% CI -0.024 to 0.318) and 0.046 (p = 0.623, 95% CI -0.094 to 0.157), respectively. Conclusion Improving behavioural confidence and bringing about emotional transformation were significant predictors for a reduction in inadequate sleep behaviour in dental students. Working on these predictors may improve sleep behaviours in dental students.
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