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  • BACKGROUND A graduating medical doctor is expected to be competent in physical examinations across all systems. The exploration of how gender affects the development of clinical skills has not been explored in an Arab context, despite cultural restrictions that make it more difficult for students and doctors to examine the opposite sex. METHODS A cross sectional survey was undertaken of graduating final year medical students in Northern Jordan. We asked about students' perceptions regarding factors that may impact the development of clinical skills potentially related to gender, and asked about the frequency of examinations performed during their training for intimate and general physical examinations on all patients, as well as patients of the opposite sex. We also asked about the students' confidence in performing the examinations (3-point Likert-scale). Comparison of male and female proportions was done using Chi square tests analysis. RESULTS One hundred eighty-eight final year students from 481 students ntimate clinical examinations at all. CONCLUSIONS In our context, clinical exposure to both intimate and general clinical examinations differs significantly between male and female students. A greater awareness and more research on the influence of gender on clinical skill attainment in conservative cultures is needed with appropriate adaption of clinical teaching. TRIAL REGISTRATION Non interventional thus not required.BACKGROUND Tendon-bone interface healing and ligamentization of the graft in anterior cruciate ligament (ACL) reconstruction with autografts are important factors affecting treatment outcome. This study aimed to investigate the effectiveness of a cylindrical titanium-web (TW) in tendon-bone interface healing and graft maturation in ACL reconstruction. METHODS Fourteen mature female CLAWN miniature ***** underwent bilateral ACL reconstructions with patellar tendon (PT) autografts. In one limb, the TW/tendon complex was placed into the proximal side of the tibial tunnel. Only the graft was transplanted into the tunnel in the control limb. The proximal side of the graft was sutured into the stump of the native ACL and the distal end was stapled to the tibia. The animals were euthanized at 4 and 15 weeks postoperatively, for histological and biochemical analyses. RESULTS Microscopic images in TW limbs showed that ingrowth of tendon-like tissue and mineralized bone tissue into the TW connected the bone and the tendon directly. In contrast, fibrous tissue intervened between the bone and tendon in the control limbs. https://www.selleckchem.com/products/unc1999.html The total amount of collagen cross-links (which defines the strength of collagen fibers) and the maturation of collagen cross-links in TW tendons were significantly higher (p  less then  0.05) than those of control limbs. There was no significant difference in the ratio of dihydroxy-lysinonorleucine to hydroxy-lysinonorleucine (an indicator of tissue specific collagen maturation) between TW tendons and that of the native PT. CONCLUSIONS TW promoted the maturation and formation of collagen cross-links in the grafted tendon while maintaining the cross-links pattern of native tendon collagen, and enabled direct binding of tendon to bone.BACKGROUND Associations between serum phosphorus level and the incidence of ischemic stroke are not clear. This study aimed to measure serum phosphorus, vitamin D3, and uric acid levels in ischemic stroke patients compared to a population without ischemic stroke. METHODS In this cross-sectional study, 133 patients admitted to a neurology ward with the diagnosis of ischemic stroke were compared with a control group comprising 133 age- and gender-matching individuals. The presence of ischemic stroke was confirmed by a neurologist based on clinical signs, symptoms, brain CT scan, and MRI. Blood samples were taken from all patients in the first 24 h of admission to measure serum phosphorus, vitamin D3, calcium, and uric acid levels. RESULTS According to the results of this study, uric acid medians in patients with stroke and controls were 4.9 [3.8-6.4] and 3.9 [3.5-4.9] mg/dL, respectively (p  less then  0.001). Median phosphorus and vitamin D levels were significantly lower in stroke patients than the controls (3.6 [3.02-4.21] vs. 4.2 [3.8-4.6]) and (15.1 [8.2-27.9] vs. 22.7 [10.4-39.2]), respectively. Multiple logistic regression analysis showed that the ischemic stroke was positively associated with the vitamin D level and negatively correlated with the uric acid level. The phosphorus level was not significantly predictive of ischemic stroke. CONCLUSION Lower serum levels of vitamin D3 and higher levels of uric acid were associated with ischemic stroke. There are still unknowns about the role of these indicators on ischemic stroke and it requires further studies.BACKGROUND The purse-string suture has been widely used for bleeding control after percutaneous interventions through arteriovenous fistula (AVF) and graft (AVG), and it requires suture removal the next day. This study aimed to introduce a simple method using a tourniquet to facilitate hemostasis following AVF or AVG sheath removal after percutaneous procedures. METHODS Data were retrospectively collected and included all the consecutive patients who received bleeding control with a tourniquet after percutaneous AVF or AVG interventions. Hemostasis was facilitated using the tourniquet technique after sheath removal. RESULTS A total of 1966 patients who received the tourniquet technique for bleeding control after percutaneous AVF or AVG interventions were included. Bleeding control was successfully achieved in all patients. Regarding complications, hematoma, thrombosis, and rebleeding occurred in 57 (2.9%), 11 (0.6%), and 8 (0.4%) patients, respectively. Neither pseudoaneurysm nor infection occurred in the patients. Age, gender, pre-existing diseases (including diabetes and hypertension), procedure count, sheath size, hemodialysis access type, and canalization route were similar between patients with and without complications. The primary patency rates at 6,12, 24, and 36 months were 85.0, 64.6, 53.8, and 41.6%, respectively. CONCLUSIONS The tourniquet technique is an effective and safe approach for facilitating hemostasis after catheter-based percutaneous interventions of hemodialysis accesses.
    BACKGROUND A graduating medical doctor is expected to be competent in physical examinations across all systems. The exploration of how gender affects the development of clinical skills has not been explored in an Arab context, despite cultural restrictions that make it more difficult for students and doctors to examine the opposite sex. METHODS A cross sectional survey was undertaken of graduating final year medical students in Northern Jordan. We asked about students' perceptions regarding factors that may impact the development of clinical skills potentially related to gender, and asked about the frequency of examinations performed during their training for intimate and general physical examinations on all patients, as well as patients of the opposite sex. We also asked about the students' confidence in performing the examinations (3-point Likert-scale). Comparison of male and female proportions was done using Chi square tests analysis. RESULTS One hundred eighty-eight final year students from 481 students ntimate clinical examinations at all. CONCLUSIONS In our context, clinical exposure to both intimate and general clinical examinations differs significantly between male and female students. A greater awareness and more research on the influence of gender on clinical skill attainment in conservative cultures is needed with appropriate adaption of clinical teaching. TRIAL REGISTRATION Non interventional thus not required.BACKGROUND Tendon-bone interface healing and ligamentization of the graft in anterior cruciate ligament (ACL) reconstruction with autografts are important factors affecting treatment outcome. This study aimed to investigate the effectiveness of a cylindrical titanium-web (TW) in tendon-bone interface healing and graft maturation in ACL reconstruction. METHODS Fourteen mature female CLAWN miniature swine underwent bilateral ACL reconstructions with patellar tendon (PT) autografts. In one limb, the TW/tendon complex was placed into the proximal side of the tibial tunnel. Only the graft was transplanted into the tunnel in the control limb. The proximal side of the graft was sutured into the stump of the native ACL and the distal end was stapled to the tibia. The animals were euthanized at 4 and 15 weeks postoperatively, for histological and biochemical analyses. RESULTS Microscopic images in TW limbs showed that ingrowth of tendon-like tissue and mineralized bone tissue into the TW connected the bone and the tendon directly. In contrast, fibrous tissue intervened between the bone and tendon in the control limbs. https://www.selleckchem.com/products/unc1999.html The total amount of collagen cross-links (which defines the strength of collagen fibers) and the maturation of collagen cross-links in TW tendons were significantly higher (p  less then  0.05) than those of control limbs. There was no significant difference in the ratio of dihydroxy-lysinonorleucine to hydroxy-lysinonorleucine (an indicator of tissue specific collagen maturation) between TW tendons and that of the native PT. CONCLUSIONS TW promoted the maturation and formation of collagen cross-links in the grafted tendon while maintaining the cross-links pattern of native tendon collagen, and enabled direct binding of tendon to bone.BACKGROUND Associations between serum phosphorus level and the incidence of ischemic stroke are not clear. This study aimed to measure serum phosphorus, vitamin D3, and uric acid levels in ischemic stroke patients compared to a population without ischemic stroke. METHODS In this cross-sectional study, 133 patients admitted to a neurology ward with the diagnosis of ischemic stroke were compared with a control group comprising 133 age- and gender-matching individuals. The presence of ischemic stroke was confirmed by a neurologist based on clinical signs, symptoms, brain CT scan, and MRI. Blood samples were taken from all patients in the first 24 h of admission to measure serum phosphorus, vitamin D3, calcium, and uric acid levels. RESULTS According to the results of this study, uric acid medians in patients with stroke and controls were 4.9 [3.8-6.4] and 3.9 [3.5-4.9] mg/dL, respectively (p  less then  0.001). Median phosphorus and vitamin D levels were significantly lower in stroke patients than the controls (3.6 [3.02-4.21] vs. 4.2 [3.8-4.6]) and (15.1 [8.2-27.9] vs. 22.7 [10.4-39.2]), respectively. Multiple logistic regression analysis showed that the ischemic stroke was positively associated with the vitamin D level and negatively correlated with the uric acid level. The phosphorus level was not significantly predictive of ischemic stroke. CONCLUSION Lower serum levels of vitamin D3 and higher levels of uric acid were associated with ischemic stroke. There are still unknowns about the role of these indicators on ischemic stroke and it requires further studies.BACKGROUND The purse-string suture has been widely used for bleeding control after percutaneous interventions through arteriovenous fistula (AVF) and graft (AVG), and it requires suture removal the next day. This study aimed to introduce a simple method using a tourniquet to facilitate hemostasis following AVF or AVG sheath removal after percutaneous procedures. METHODS Data were retrospectively collected and included all the consecutive patients who received bleeding control with a tourniquet after percutaneous AVF or AVG interventions. Hemostasis was facilitated using the tourniquet technique after sheath removal. RESULTS A total of 1966 patients who received the tourniquet technique for bleeding control after percutaneous AVF or AVG interventions were included. Bleeding control was successfully achieved in all patients. Regarding complications, hematoma, thrombosis, and rebleeding occurred in 57 (2.9%), 11 (0.6%), and 8 (0.4%) patients, respectively. Neither pseudoaneurysm nor infection occurred in the patients. Age, gender, pre-existing diseases (including diabetes and hypertension), procedure count, sheath size, hemodialysis access type, and canalization route were similar between patients with and without complications. The primary patency rates at 6,12, 24, and 36 months were 85.0, 64.6, 53.8, and 41.6%, respectively. CONCLUSIONS The tourniquet technique is an effective and safe approach for facilitating hemostasis after catheter-based percutaneous interventions of hemodialysis accesses.
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  • Evidence assessment Because of limited and inadequate evidence, the USPSTF concludes that the benefits and harms of primary care-based interventions to prevent illicit drug use in children, adolescents, and young adults are uncertain and that the evidence is insufficient to assess the balance of benefits and harms. More research is needed. Recommendation The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of primary care-based behavioral counseling interventions to prevent illicit drug use, including nonmedical use of prescription drugs, in children, adolescents, and young adults. (I statement).Importance Illicit and nonmedical (use in ways other than instructed) drug use is common in adolescents and young adults and increases the risk of harmful outcomes such as injuries, violence, and poorer academic performance. Objective To review the benefits and harms of interventions to prevent illicit and nonmedical drug use in children, adolescents, and young adults to inform the US Preventive Services Task Force. Data sources MEDLINE, PubMED, PsycINFO, and the Cochrane Central Register of Controlled Trials (January 1, 2013, to January 31, 2019 [children and adolescents]; January 1, 1992, to January 31, 2019 [young adults less then 25 years]); surveillance through March 20, 2020. Study selection Clinical trials of behavioral counseling interventions to prevent initiation of illicit and nonmedical drug use among young people. Data extraction and synthesis Critical appraisal was completed independently by 2 investigators. Data were extracted by 1 reviewer and checked by a second. Random-effects meta-analysiservention group (range, -11.5% to 14.8%). The remaining 3 trials provided a perinatal home-visiting intervention to pregnant Native American youth. One trial (n=322) found a reduction in illicit drug use at 38 months (eg, cannabis use in the previous month, 10.7% in the intervention group and 15.6% in the control group) but not at earlier follow-up assessments. Across all 29 trials, only 1 trial reported on harms and found no statistically significant group differences. Conclusions and relevance The evidence for behavioral counseling interventions to prevent initiation of illicit and nonmedical drug use among adolescents and young adults was inconsistent and imprecise, with some interventions associated with reduction in use and others associated with no benefit or increased use. Health, social, and legal outcomes were sparsely reported, and few showed improvements.Importance Abdominal aortic aneurysms affect more than 3% of US older adults. Objective To test whether doxycycline reduces the growth of abdominal aortic aneurysm over 2 years as measured by maximum transverse diameter. Design, setting, and participants Parallel, 2-group, randomized clinical trial that was conducted at 22 US clinical centers between May 2013 and January 2017, and enrolled patients 50 years or older with small (3.5-5.0 cm for men, 3.5-4.5 cm for women) infrarenal aneurysms. https://www.selleckchem.com/products/AZD6244.html The final date of follow-up was July 31, 2018. Interventions Patients were randomized to receive twice daily for 2 years doxycycline 100 mg orally (as capsules) (n = 133) or placebo (n = 128). Main outcomes and measures The primary outcome was change in abdominal aortic aneurysm maximum transverse diameter measured from CT images at baseline and follow-up at 2 years. Patients were assigned ranks based on the maximum transverse diameter (measured or imputed) of the aorta and also if they underwent aneurysm repair or died. T was 0.36 cm (95% CI, 0.31 to 0.40 cm) for 96 patients in the doxycycline group vs 0.36 cm (95% CI, 0.30 to 0.41 cm) for 101 patients in the placebo group (difference, 0.0; 95% CI, -0.07 to 0.07 cm; 2-sided P = .93). No patients were withdrawn from the study because of adverse effects. Joint pain occurred in 84 of 129 patients (65%) with doxycycline and 79 of 125 (63%) with placebo. Conclusions and relevance Among patients with small infrarenal abdominal aortic aneurysms, doxycycline compared with placebo did not significantly reduce aneurysm growth at 2 years. These findings do not support the use of doxycycline for reducing the growth of small abdominal aortic aneurysms. Trial registration ClinicalTrials.gov Identifier NCT01756833.Importance Deprescribing of antihypertensive medications is recommended for some older patients with polypharmacy and multimorbidity when the benefits of continued treatment may not outweigh the harms. Objective This study aimed to establish whether antihypertensive medication reduction is possible without significant changes in systolic blood pressure control or adverse events during 12-week follow-up. Design, setting, and participants The Optimising Treatment for Mild Systolic Hypertension in the Elderly (OPTIMISE) study was a randomized, unblinded, noninferiority trial conducted in 69 primary care sites in England. Participants, whose primary care physician considered them appropriate for medication reduction, were aged 80 years and older, had systolic blood pressure lower than 150 mm Hg, and were receiving at least 2 antihypertensive medications were included. Participants enrolled between April 2017 and September 2018 and underwent follow-up until January 2019. Interventions Participants were randomized o significant difference. Medication reduction was sustained in 187 (66.3%) participants at 12 weeks. Mean change in systolic blood pressure was 3.4 mm Hg (95% CI, 1.1 to 5.8 mm Hg) higher in the intervention group compared with the control group. Twelve (4.3%) participants in the intervention group and 7 (2.4%) in the control group reported at least 1 serious adverse event (adjusted RR, 1.72 [95% CI, 0.7 to 4.3]). Conclusions and relevance Among older patients treated with multiple antihypertensive medications, a strategy of medication reduction, compared with usual care, was noninferior with regard to systolic blood pressure control at 12 weeks. The findings suggest antihypertensive medication reduction in some older patients with hypertension is not associated with substantial change in blood pressure control, although further research is needed to understand long-term clinical outcomes. Trial registration EudraCT Identifier 2016-004236-38; ISRCTN identifier 97503221.
    Evidence assessment Because of limited and inadequate evidence, the USPSTF concludes that the benefits and harms of primary care-based interventions to prevent illicit drug use in children, adolescents, and young adults are uncertain and that the evidence is insufficient to assess the balance of benefits and harms. More research is needed. Recommendation The USPSTF concludes that the current evidence is insufficient to assess the balance of benefits and harms of primary care-based behavioral counseling interventions to prevent illicit drug use, including nonmedical use of prescription drugs, in children, adolescents, and young adults. (I statement).Importance Illicit and nonmedical (use in ways other than instructed) drug use is common in adolescents and young adults and increases the risk of harmful outcomes such as injuries, violence, and poorer academic performance. Objective To review the benefits and harms of interventions to prevent illicit and nonmedical drug use in children, adolescents, and young adults to inform the US Preventive Services Task Force. Data sources MEDLINE, PubMED, PsycINFO, and the Cochrane Central Register of Controlled Trials (January 1, 2013, to January 31, 2019 [children and adolescents]; January 1, 1992, to January 31, 2019 [young adults less then 25 years]); surveillance through March 20, 2020. Study selection Clinical trials of behavioral counseling interventions to prevent initiation of illicit and nonmedical drug use among young people. Data extraction and synthesis Critical appraisal was completed independently by 2 investigators. Data were extracted by 1 reviewer and checked by a second. Random-effects meta-analysiservention group (range, -11.5% to 14.8%). The remaining 3 trials provided a perinatal home-visiting intervention to pregnant Native American youth. One trial (n=322) found a reduction in illicit drug use at 38 months (eg, cannabis use in the previous month, 10.7% in the intervention group and 15.6% in the control group) but not at earlier follow-up assessments. Across all 29 trials, only 1 trial reported on harms and found no statistically significant group differences. Conclusions and relevance The evidence for behavioral counseling interventions to prevent initiation of illicit and nonmedical drug use among adolescents and young adults was inconsistent and imprecise, with some interventions associated with reduction in use and others associated with no benefit or increased use. Health, social, and legal outcomes were sparsely reported, and few showed improvements.Importance Abdominal aortic aneurysms affect more than 3% of US older adults. Objective To test whether doxycycline reduces the growth of abdominal aortic aneurysm over 2 years as measured by maximum transverse diameter. Design, setting, and participants Parallel, 2-group, randomized clinical trial that was conducted at 22 US clinical centers between May 2013 and January 2017, and enrolled patients 50 years or older with small (3.5-5.0 cm for men, 3.5-4.5 cm for women) infrarenal aneurysms. https://www.selleckchem.com/products/AZD6244.html The final date of follow-up was July 31, 2018. Interventions Patients were randomized to receive twice daily for 2 years doxycycline 100 mg orally (as capsules) (n = 133) or placebo (n = 128). Main outcomes and measures The primary outcome was change in abdominal aortic aneurysm maximum transverse diameter measured from CT images at baseline and follow-up at 2 years. Patients were assigned ranks based on the maximum transverse diameter (measured or imputed) of the aorta and also if they underwent aneurysm repair or died. T was 0.36 cm (95% CI, 0.31 to 0.40 cm) for 96 patients in the doxycycline group vs 0.36 cm (95% CI, 0.30 to 0.41 cm) for 101 patients in the placebo group (difference, 0.0; 95% CI, -0.07 to 0.07 cm; 2-sided P = .93). No patients were withdrawn from the study because of adverse effects. Joint pain occurred in 84 of 129 patients (65%) with doxycycline and 79 of 125 (63%) with placebo. Conclusions and relevance Among patients with small infrarenal abdominal aortic aneurysms, doxycycline compared with placebo did not significantly reduce aneurysm growth at 2 years. These findings do not support the use of doxycycline for reducing the growth of small abdominal aortic aneurysms. Trial registration ClinicalTrials.gov Identifier NCT01756833.Importance Deprescribing of antihypertensive medications is recommended for some older patients with polypharmacy and multimorbidity when the benefits of continued treatment may not outweigh the harms. Objective This study aimed to establish whether antihypertensive medication reduction is possible without significant changes in systolic blood pressure control or adverse events during 12-week follow-up. Design, setting, and participants The Optimising Treatment for Mild Systolic Hypertension in the Elderly (OPTIMISE) study was a randomized, unblinded, noninferiority trial conducted in 69 primary care sites in England. Participants, whose primary care physician considered them appropriate for medication reduction, were aged 80 years and older, had systolic blood pressure lower than 150 mm Hg, and were receiving at least 2 antihypertensive medications were included. Participants enrolled between April 2017 and September 2018 and underwent follow-up until January 2019. Interventions Participants were randomized o significant difference. Medication reduction was sustained in 187 (66.3%) participants at 12 weeks. Mean change in systolic blood pressure was 3.4 mm Hg (95% CI, 1.1 to 5.8 mm Hg) higher in the intervention group compared with the control group. Twelve (4.3%) participants in the intervention group and 7 (2.4%) in the control group reported at least 1 serious adverse event (adjusted RR, 1.72 [95% CI, 0.7 to 4.3]). Conclusions and relevance Among older patients treated with multiple antihypertensive medications, a strategy of medication reduction, compared with usual care, was noninferior with regard to systolic blood pressure control at 12 weeks. The findings suggest antihypertensive medication reduction in some older patients with hypertension is not associated with substantial change in blood pressure control, although further research is needed to understand long-term clinical outcomes. Trial registration EudraCT Identifier 2016-004236-38; ISRCTN identifier 97503221.
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  • Nephrotic syndrome (NS) is a glomerular disorder typically characterized by gross proteinuria, hypoalbuminemia, hyperlipidemia, and peripheral oedema. We report the case of a 2-year-old male toddler weighing 15 kg with a 1-week history of swelling around the eyes and both legs, and generalized body swelling. She had a history of fever, cough and decreased urine output. Examination revealed bilateral pedal oedema (pitting type). Laboratory investigations showed protein in urine, reduced serum albumin (2.0 g/dL) with elevated lipid levels. Although kidney biopsy could not be performed due to economic problem of the family, a diagnosis of idiopathic nephrotic syndrome (NS) was made based on clinical and laboratory findings. The patient was mainly treated with furosemide, prednisolone and enalapril. Urine I/O charting (Intake/Output chart for assessing fluid intake and ability to pass urine in adequate amounts) was done daily until optimal results were obtained.Background/objective Marked to abundant crystalluria may cause significant morbidity due to acute renal injury. Intravenous acyclovir administration may result in a pathologic crystalluria, especially in cases with increased renal concentration of the drug. It is important that clinical laboratory staff recognize and communicate the presence of abundant crystalluria to clinical staff to avoid irreversible kidney injury. Methods We report a case of crystalluria in a patient treated empirically with intravenous acyclovir for possible viral meningitis. Results Opaque "milky" urine was submitted for urine analysis which showed abundant long needle-shaped brightly birefringent crystals under polarized light microscopy and was diagnosed as acyclovir crystalluria. Conclusions Any case of moderate to abundant crystalluria should be reported in a timely manner to the clinical staff to facilitate treatment modification to reduce the risk of acute kidney injury. Laboratory staff should be aware and recognize acyclovir treatment as a possible cause of pathologic crystalluria.Introduction This survey aimed to assess the state-of-the-art of current practices on critical results reporting among Portuguese Clinical Pathology Laboratories. The results of the survey will set basis for future standardization and national guideline development. Materials and methods The survey was transmitted to 49 Clinical Pathology Laboratories among public hospitals inserted in the Portuguese National Health System. In 27 questions, laboratories were asked about their critical results procedures, critical results list, reporting and further education. Data were analyzed using Microsoft Excel v.2016 and MedCalc Statistical Software version 12.5.0.0 (Ostend, Belgium). Where applicable, the comparison of proportions was used to estimate the level of significance (P0.05). The majority of laboratories (60%) report critical results via telephone within 15 minutes. Critical results are usually reported by clinical pathologists to physicians. Twenty-five laboratories periodically reevaluate their critical results list. Conclusion Despite the fact that most of the Portuguese hospitals have a critical results policy, this survey showed high variability among the hospitals concerning critical results reporting practices and critical results list. This survey points out that nationally established procedures and guidelines are urgent step for critical results standardization.Introduction The Catalan Association of Clinical Laboratory Sciences (ACCLC) conducted a survey on the vast majority of hospital clinical laboratories in Catalonia. In order to establish a debate on the emergency laboratories and aspects related to the stat tests. Materials and methods An online survey was distributed by ACCLC to 69 hospital laboratories in Catalonia. A 30-question survey was designed with 9 different issues. The questionnaire examined general information regarding the hospital and laboratory model, stat laboratory workload, laboratory information system, quality control, critical values results, authorization/validation of results, laboratory report and human resources, among others. The results were reported in number of laboratories and in percentage (%). Results The total survey response rate was 59 %. 68.3 % stat laboratories biochemistry, haematology and microbiology departments were integrated. The majority (60.9%) of the stat tests were integrated in part with laboratory core. All laboratories employed laboratory information system and are using barcode system. In 75.6% of laboratories all requests were made electronically. 43.9% of laboratories did not give results in international system, only in conventional units. All laboratories participated in internal and external quality assessment programs. Internal quality controls are processed more than once a day in 80.5% of laboratories. The vast majority of laboratories reported critical results (97.6%). 75% of laboratories have a medical specialist (biochemistry or analysis). The average number of laboratory technicians was 4. Conclusions Our study highlighted the variation in how emergency laboratories and stat test are run across Catalonia.Introduction Lead poisoning is a common health problem in Nepal and there are a limited number of studies on blood lead levels in various population groups. https://www.selleckchem.com/products/bix-01294.html Rag-pickers are those people who visit from house to house to collect the materials that can be recycled and thus earn their livelihood. The present study was designed to evaluate blood lead level (BLL) and its relationship between hematological and biochemical parameters in rag-pickers working in Kathmandu. Methods An observational cross-sectional study among 50 ragpickers working in the selected area of Kathmandu was done in May 2019 after obtaining ethical approval from the Nepal health research council. Capillary and venous blood was drawn from each participant after written consent to measure the BLL, aspartate aminotransferase, alanine aminotransferase, total bilirubin, creatinine, glucose and to test for a complete blood count. Whole blood was also screened for the presence of hemoglobin variants in cases with abnormal red blood cell indices. Data was analyzed using SPSS (Version 20.
    Nephrotic syndrome (NS) is a glomerular disorder typically characterized by gross proteinuria, hypoalbuminemia, hyperlipidemia, and peripheral oedema. We report the case of a 2-year-old male toddler weighing 15 kg with a 1-week history of swelling around the eyes and both legs, and generalized body swelling. She had a history of fever, cough and decreased urine output. Examination revealed bilateral pedal oedema (pitting type). Laboratory investigations showed protein in urine, reduced serum albumin (2.0 g/dL) with elevated lipid levels. Although kidney biopsy could not be performed due to economic problem of the family, a diagnosis of idiopathic nephrotic syndrome (NS) was made based on clinical and laboratory findings. The patient was mainly treated with furosemide, prednisolone and enalapril. Urine I/O charting (Intake/Output chart for assessing fluid intake and ability to pass urine in adequate amounts) was done daily until optimal results were obtained.Background/objective Marked to abundant crystalluria may cause significant morbidity due to acute renal injury. Intravenous acyclovir administration may result in a pathologic crystalluria, especially in cases with increased renal concentration of the drug. It is important that clinical laboratory staff recognize and communicate the presence of abundant crystalluria to clinical staff to avoid irreversible kidney injury. Methods We report a case of crystalluria in a patient treated empirically with intravenous acyclovir for possible viral meningitis. Results Opaque "milky" urine was submitted for urine analysis which showed abundant long needle-shaped brightly birefringent crystals under polarized light microscopy and was diagnosed as acyclovir crystalluria. Conclusions Any case of moderate to abundant crystalluria should be reported in a timely manner to the clinical staff to facilitate treatment modification to reduce the risk of acute kidney injury. Laboratory staff should be aware and recognize acyclovir treatment as a possible cause of pathologic crystalluria.Introduction This survey aimed to assess the state-of-the-art of current practices on critical results reporting among Portuguese Clinical Pathology Laboratories. The results of the survey will set basis for future standardization and national guideline development. Materials and methods The survey was transmitted to 49 Clinical Pathology Laboratories among public hospitals inserted in the Portuguese National Health System. In 27 questions, laboratories were asked about their critical results procedures, critical results list, reporting and further education. Data were analyzed using Microsoft Excel v.2016 and MedCalc Statistical Software version 12.5.0.0 (Ostend, Belgium). Where applicable, the comparison of proportions was used to estimate the level of significance (P0.05). The majority of laboratories (60%) report critical results via telephone within 15 minutes. Critical results are usually reported by clinical pathologists to physicians. Twenty-five laboratories periodically reevaluate their critical results list. Conclusion Despite the fact that most of the Portuguese hospitals have a critical results policy, this survey showed high variability among the hospitals concerning critical results reporting practices and critical results list. This survey points out that nationally established procedures and guidelines are urgent step for critical results standardization.Introduction The Catalan Association of Clinical Laboratory Sciences (ACCLC) conducted a survey on the vast majority of hospital clinical laboratories in Catalonia. In order to establish a debate on the emergency laboratories and aspects related to the stat tests. Materials and methods An online survey was distributed by ACCLC to 69 hospital laboratories in Catalonia. A 30-question survey was designed with 9 different issues. The questionnaire examined general information regarding the hospital and laboratory model, stat laboratory workload, laboratory information system, quality control, critical values results, authorization/validation of results, laboratory report and human resources, among others. The results were reported in number of laboratories and in percentage (%). Results The total survey response rate was 59 %. 68.3 % stat laboratories biochemistry, haematology and microbiology departments were integrated. The majority (60.9%) of the stat tests were integrated in part with laboratory core. All laboratories employed laboratory information system and are using barcode system. In 75.6% of laboratories all requests were made electronically. 43.9% of laboratories did not give results in international system, only in conventional units. All laboratories participated in internal and external quality assessment programs. Internal quality controls are processed more than once a day in 80.5% of laboratories. The vast majority of laboratories reported critical results (97.6%). 75% of laboratories have a medical specialist (biochemistry or analysis). The average number of laboratory technicians was 4. Conclusions Our study highlighted the variation in how emergency laboratories and stat test are run across Catalonia.Introduction Lead poisoning is a common health problem in Nepal and there are a limited number of studies on blood lead levels in various population groups. https://www.selleckchem.com/products/bix-01294.html Rag-pickers are those people who visit from house to house to collect the materials that can be recycled and thus earn their livelihood. The present study was designed to evaluate blood lead level (BLL) and its relationship between hematological and biochemical parameters in rag-pickers working in Kathmandu. Methods An observational cross-sectional study among 50 ragpickers working in the selected area of Kathmandu was done in May 2019 after obtaining ethical approval from the Nepal health research council. Capillary and venous blood was drawn from each participant after written consent to measure the BLL, aspartate aminotransferase, alanine aminotransferase, total bilirubin, creatinine, glucose and to test for a complete blood count. Whole blood was also screened for the presence of hemoglobin variants in cases with abnormal red blood cell indices. Data was analyzed using SPSS (Version 20.
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  • BACKGROUND Erdheim-Chester disease (ECD) is a rare non-Langerhans cell histiocytosis. The BRAF inhibitor vemurafenib is approved by the U.S. Food and Drug Administration (FDA) for patients with ECD harboring a BRAF V600E mutation. Successful treatment has also been reported with MEK-targeted therapies, likely because of the fact that BRAF mutant-negative patients harbor MEK pathway alterations. In our Rare Tumor Clinic, we noted that these patients have frequent drug-related toxicity, consistent with previous reports indicating the need to markedly lower doses of interferon-alpha when that agent is used in these patients. PATIENTS AND METHODS We performed a review of ten patients with ECD seen at the Rare Tumor Clinic at University of California San Diego receiving 16 regimens of targeted BRAF, MEK, or combined therapies. https://www.selleckchem.com/products/H-89-dihydrochloride.html RESULTS The median age of the ten patients with ECD was 53 years (range, 29-77); seven were men. The median dose percentage (percent of FDA-approved dose) tolerated was 25% (range, 25%-50%). The most common clinically significant adverse effects resulting in dose adjustments of targeted therapies were rash, arthralgias, and uveitis. Renal toxicity and congestive heart failure were seen in one patient each. In spite of these issues, eight of ten patients (80%) achieved a partial remission on therapy. DISCUSSION Patients with ECD appear to require substantially reduced doses of BRAF and MEK inhibitors but are responsive to these lower doses. © 2019 The Authors. The Oncologist published by Wiley Periodicals, Inc. on behalf of AlphaMed Press.BACKGROUND Pancreatic neuroendocrine tumors (panNETs) are a rare group of tumors that make up 2%-3% of pancreatic tumors. Recommended treatment for panNETs generally consists of resection for symptomatic or large asymptomatic tumors; however, optimal management for localized disease is still controversial, with conflicting recommendations in established guidelines. Our study aim is to compare surgical intervention versus active surveillance in nonmetastatic panNETs by size of primary tumor. MATERIALS AND METHODS Using the National Cancer Database, we identified 2,004 patients diagnosed with localized well-differentiated, nonfunctional panNETs (NF-panNETs) between 2004 and 2015. Patients' clinicopathologic characteristics, treatment modalities, and overall survival (OS) were analyzed using frequency statistics, chi-square, and Kaplan-Meier curves. The objective of the study is to assess the outcome of surgical resection versus nonoperative management in patients with panNETs with different tumor sizes. RESULTS NF-panNETs. Data from the National Cancer Database were reviewed. This study's findings suggest that active surveillance is potentially a safe approach for NF-panNETs less then 1 cm. Larger tumors likely need active intervention. Independent prognostic factors include age at diagnosis, Charlson-Deyo comorbidity score, stage, tumor location, and surgical resection. These findings will help guide medical and surgical oncologists when formulating treatment plans for patients with small NF-panNETs. © AlphaMed Press 2019.Management of melanoma has been revolutionized by the use of immune checkpoint inhibitors. Immune system changes associated with aging may affect the efficacy of immune-based therapies. Using the National Cancer Database, we evaluated the impact of age on the receipt and efficacy of modern immunotherapies in patients with metastatic melanoma. We identified 11,944 patients from 2011-2015, of whom 25% received immunotherapy. Older (≥60 years), compared with younger, patients were less likely to receive immunotherapy (odds ratio, 0.69; 95% confidence interval [CI], 0.61-0.78; p less then .001). Immunotherapy was associated with a survival benefit in both younger and older patients ( less then 60 years hazard ratio [HR], 0.64; 95% CI, 0.57-0.72; p less then .001; ≥60 years HR, 0.55; 95% CI, 0.50-0.60; p less then .001). Importantly, there was a statistically significant interaction between age and survival with immunotherapy, where a greater benefit was observed for older patients (pinteraction = 0.013). Further work studying the age-related response to immunotherapy is warranted. © AlphaMed Press 2019.Chimeric antigen receptor (CAR)-engineered T-cell therapy is becoming one of the most promising approaches in the treatment of cancer. On June 28, 2018, the Committee for Advanced Therapies (CAT) and the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency adopted a positive opinion, recommending the granting of a marketing authorization for the medicinal product Kymriah for pediatric and young adult patients up to 25 years of age with B-cell acute lymphoblastic leukemia (ALL) that is refractory, in relapse after transplant, or in second or later relapse and for adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) after two or more lines of systemic therapy. Kymriah became one of the first European Union-approved CAR T therapies. The active substance of Kymriah is tisagenlecleucel, an autologous, immunocellular cancer therapy that involves reprogramming the patient's own T cells to identify and eliminate CD19-expressing cells. This is achieved by aCTICE Chimeric antigen receptor (CAR)-engineered T-cell therapy is becoming the most promising approach in cancer treatment, involving reprogramming the patient's own T cells with a CAR-encoding transgene to identify and eliminate cancer-specific surface antigen-expressing cells. On June 28, 2018, Kymriah became one of the first EMA approved CAR T therapies. CAR T technology seems highly promising for diseases with single genetic/protein alterations; however, for more complex diseases there will be challenges to target clonal variability within the tumor type or clonal evolution during disease progression. Products with a lesser toxicity profile or more risk-minimization tools are also anticipated. © AlphaMed Press 2019.BACKGROUND In the phase III MONARCH 2 study (NCT02107703), abemaciclib plus fulvestrant significantly improved progression-free survival (PFS) versus placebo plus fulvestrant in patients with hormone receptor-positive (HR+), HER2-negative advanced breast cancer (ABC). This study assessed patient-reported pain, global health-related quality of life (HRQoL), functioning, and symptoms. MATERIALS AND METHODS Abemaciclib or placebo (150 p.o. mg twice daily) plus fulvestrant (500 mg, per label) were randomly assigned (21). The modified Brief Pain Inventory, Short Form (mBPI-sf); European Organization for Research and Treatment of Cancer (EORTC) QoL Core 30 (QLQ-C30); and Breast Cancer Questionnaire (QLQ-BR23) assessed outcomes. Data were collected at baseline, cycle 2, every two cycles 3-13, thereafter at every three cycles, and 30 days postdiscontinuation. Longitudinal mixed regression and Cox proportional hazards models assessed postbaseline change and time to sustained deterioration (TTSD) by study arm. RESULTS On-treatment HRQoL scores were consistently maintained from baseline and similar between arms.
    BACKGROUND Erdheim-Chester disease (ECD) is a rare non-Langerhans cell histiocytosis. The BRAF inhibitor vemurafenib is approved by the U.S. Food and Drug Administration (FDA) for patients with ECD harboring a BRAF V600E mutation. Successful treatment has also been reported with MEK-targeted therapies, likely because of the fact that BRAF mutant-negative patients harbor MEK pathway alterations. In our Rare Tumor Clinic, we noted that these patients have frequent drug-related toxicity, consistent with previous reports indicating the need to markedly lower doses of interferon-alpha when that agent is used in these patients. PATIENTS AND METHODS We performed a review of ten patients with ECD seen at the Rare Tumor Clinic at University of California San Diego receiving 16 regimens of targeted BRAF, MEK, or combined therapies. https://www.selleckchem.com/products/H-89-dihydrochloride.html RESULTS The median age of the ten patients with ECD was 53 years (range, 29-77); seven were men. The median dose percentage (percent of FDA-approved dose) tolerated was 25% (range, 25%-50%). The most common clinically significant adverse effects resulting in dose adjustments of targeted therapies were rash, arthralgias, and uveitis. Renal toxicity and congestive heart failure were seen in one patient each. In spite of these issues, eight of ten patients (80%) achieved a partial remission on therapy. DISCUSSION Patients with ECD appear to require substantially reduced doses of BRAF and MEK inhibitors but are responsive to these lower doses. © 2019 The Authors. The Oncologist published by Wiley Periodicals, Inc. on behalf of AlphaMed Press.BACKGROUND Pancreatic neuroendocrine tumors (panNETs) are a rare group of tumors that make up 2%-3% of pancreatic tumors. Recommended treatment for panNETs generally consists of resection for symptomatic or large asymptomatic tumors; however, optimal management for localized disease is still controversial, with conflicting recommendations in established guidelines. Our study aim is to compare surgical intervention versus active surveillance in nonmetastatic panNETs by size of primary tumor. MATERIALS AND METHODS Using the National Cancer Database, we identified 2,004 patients diagnosed with localized well-differentiated, nonfunctional panNETs (NF-panNETs) between 2004 and 2015. Patients' clinicopathologic characteristics, treatment modalities, and overall survival (OS) were analyzed using frequency statistics, chi-square, and Kaplan-Meier curves. The objective of the study is to assess the outcome of surgical resection versus nonoperative management in patients with panNETs with different tumor sizes. RESULTS NF-panNETs. Data from the National Cancer Database were reviewed. This study's findings suggest that active surveillance is potentially a safe approach for NF-panNETs less then 1 cm. Larger tumors likely need active intervention. Independent prognostic factors include age at diagnosis, Charlson-Deyo comorbidity score, stage, tumor location, and surgical resection. These findings will help guide medical and surgical oncologists when formulating treatment plans for patients with small NF-panNETs. © AlphaMed Press 2019.Management of melanoma has been revolutionized by the use of immune checkpoint inhibitors. Immune system changes associated with aging may affect the efficacy of immune-based therapies. Using the National Cancer Database, we evaluated the impact of age on the receipt and efficacy of modern immunotherapies in patients with metastatic melanoma. We identified 11,944 patients from 2011-2015, of whom 25% received immunotherapy. Older (≥60 years), compared with younger, patients were less likely to receive immunotherapy (odds ratio, 0.69; 95% confidence interval [CI], 0.61-0.78; p less then .001). Immunotherapy was associated with a survival benefit in both younger and older patients ( less then 60 years hazard ratio [HR], 0.64; 95% CI, 0.57-0.72; p less then .001; ≥60 years HR, 0.55; 95% CI, 0.50-0.60; p less then .001). Importantly, there was a statistically significant interaction between age and survival with immunotherapy, where a greater benefit was observed for older patients (pinteraction = 0.013). Further work studying the age-related response to immunotherapy is warranted. © AlphaMed Press 2019.Chimeric antigen receptor (CAR)-engineered T-cell therapy is becoming one of the most promising approaches in the treatment of cancer. On June 28, 2018, the Committee for Advanced Therapies (CAT) and the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency adopted a positive opinion, recommending the granting of a marketing authorization for the medicinal product Kymriah for pediatric and young adult patients up to 25 years of age with B-cell acute lymphoblastic leukemia (ALL) that is refractory, in relapse after transplant, or in second or later relapse and for adult patients with relapsed or refractory diffuse large B-cell lymphoma (DLBCL) after two or more lines of systemic therapy. Kymriah became one of the first European Union-approved CAR T therapies. The active substance of Kymriah is tisagenlecleucel, an autologous, immunocellular cancer therapy that involves reprogramming the patient's own T cells to identify and eliminate CD19-expressing cells. This is achieved by aCTICE Chimeric antigen receptor (CAR)-engineered T-cell therapy is becoming the most promising approach in cancer treatment, involving reprogramming the patient's own T cells with a CAR-encoding transgene to identify and eliminate cancer-specific surface antigen-expressing cells. On June 28, 2018, Kymriah became one of the first EMA approved CAR T therapies. CAR T technology seems highly promising for diseases with single genetic/protein alterations; however, for more complex diseases there will be challenges to target clonal variability within the tumor type or clonal evolution during disease progression. Products with a lesser toxicity profile or more risk-minimization tools are also anticipated. © AlphaMed Press 2019.BACKGROUND In the phase III MONARCH 2 study (NCT02107703), abemaciclib plus fulvestrant significantly improved progression-free survival (PFS) versus placebo plus fulvestrant in patients with hormone receptor-positive (HR+), HER2-negative advanced breast cancer (ABC). This study assessed patient-reported pain, global health-related quality of life (HRQoL), functioning, and symptoms. MATERIALS AND METHODS Abemaciclib or placebo (150 p.o. mg twice daily) plus fulvestrant (500 mg, per label) were randomly assigned (21). The modified Brief Pain Inventory, Short Form (mBPI-sf); European Organization for Research and Treatment of Cancer (EORTC) QoL Core 30 (QLQ-C30); and Breast Cancer Questionnaire (QLQ-BR23) assessed outcomes. Data were collected at baseline, cycle 2, every two cycles 3-13, thereafter at every three cycles, and 30 days postdiscontinuation. Longitudinal mixed regression and Cox proportional hazards models assessed postbaseline change and time to sustained deterioration (TTSD) by study arm. RESULTS On-treatment HRQoL scores were consistently maintained from baseline and similar between arms.
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  • Functional thin films are commonly integrated in electronic devices as part of a multi-layer architecture. Metal/oxide/metal structures e.g. in resistive switching memory and piezoelectric microelectrochemical devices are relevant applications. The films are mostly fabricated from the vapour phase or by solution deposition. Processing conditions with a limited thermal budget typically yield nanocrystalline or amorphous layers. https://www.selleckchem.com/products/sto-609.html For these aperiodic materials, the structure is described in terms of the local atomic order on the length scale of a few chemical bonds up to several nanometres. Previous structural studies of the short-range order in thin films have addressed the simple case of single coatings on amorphous substrates. By contrast, this work demonstrates how to probe the local structure of two stacked functional layers by means of grazing incidence total X-ray scattering and pair distribution function (PDF) analysis. The key to separating the contributions of the individual thin films is the variation of the incidence angle below the critical angle of total external reflection, In this way, structural information was obtained for functional oxides on textured electrodes, i.e. PbZr0.53O0.47O3 on Pt[111] and HfO2 on TiN, as well as HfO2-TiOx bilayers. For these systems, the transformations from disordered phases into periodic structures via thermal teatment are described. These examples highlight the opportunity to develop a detailed understanding of structural evolution during the fabrication of real thin film devices using the PDF technique.Deep vein thrombosis (DVT) often occurs in the lower limb veins of bedridden patients and greatly reduces the quality of life. The altered blood flow in venous valves induced by the insufficient efficacy of the muscle pump is commonly considered as a main factor. However, it is still a great challenge to observe the altered blood flow in real time, and its role in the formation of thrombi is poorly understood. Here we make a microfluidic venous valve model with flexible leaflets in a deformable channel that can mimic the motion of valves and the compression of vessels by muscle contraction, and identify the stasis and intermittent reflux in the valve pocket generated by the muscle pump. A thrombus forms in the stasis flow, while the intermittent reflux removes the fibrin and inhibits the growth of the thrombus. A flexible microfluidic device that can mimic the motion of valves and the contraction of vessels would have wide applications in the research on cardiovascular diseases.Complex emulsions are used to fabricate new morphologies of multiple Janus droplets, evolving from non-engulfing to complete engulfing core/shell configuration. The produced droplets contain an aqueous phase of dextran (DEX) solution and an oil phase, which is mixed with ethoxylated trimethylolpropane triacrylate (ETPTA) and poly(ethylene glycol) diacrylate (PEGDA). The PEGDA in the oil phase is transferred into the aqueous phase to form complex morphologies due to the phase separation of PEGDA and DEX. The effects are investigated including the ratio of oil to aqueous phase, the content of initial PEGDA, DEX and surfactants, and the type of surfactants. DEX/PEGDA-ETPTA core/shell-single phase Janus droplets are formed with an increasing engulfed oil droplet into the aqueous droplet while the ratio of oil to aqueous phase increases or the initial PEGDA content increases. The high DEX content leads to the DEX-PEGDA-ETPTA doublet Janus. The use of surfactants polyglycerol polyricinoleate (PGPR) and Span 80 results in the formation of DEX/PEGDA/ETPTA single core/double shell and DEX/PEGDA-ETPTA core/shell-single phase Janus droplets, respectively. These complex emulsions are utilized to fabricate solid particles of complex shapes. This method contributes to new material design underpinned by mass transfer and phase separation, which can be extended to other complex emulsion systems.Carbon nanotubes (CNTs) exhibit outstanding electrical and mechanical properties, but these superior properties are often compromised as nanotubes are assembled into bulk structures, which limits the use of CNT assemblies. Despite **** work in this field, few studies have made in situ observations of the relationship between electrical conductivity and the amount of nanowelding within pristine CNT assemblies at the microscopic scale. Here, we report in situ transmission electron microscopy observations of electrical conductivity increase of CNT bundles. High-temperature Joule heating was applied to a CNT bundle to fuse adjacent carbon nanofibers with graphitic carbon bonds, as this causes the electrical conductivity of the CNT bundle to increase three orders of magnitude. Apart from the welding process of the cross-over CNT bundles, we further observed a new case of welding process of parallel CNT bundles. Here, we not only obtain the relationship between electrical conductivity of CNT bundles and their merging processes, but also show the effect of the relationship between electrical conductivity and Joule-heating induced temperature on CNT bundles, which follows the natural logarithm law. Improving effective inter-bonding between neighboring nanotubes would help facilitate large-scale development of high-performing, bulk-carbon-based materials from nanostructures in applications such as flexible devices, energy storage, and electrocatalysis.Energetically low-lying structural isomers of the ****-studied thiolate-protected gold cluster Au25(SR)18- are discovered from extensive (80 ns) molecular dynamics (MD) simulations using the reactive molecular force field ReaxFF and confirmed by density functional theory (DFT). A particularly interesting isomer is found, which is topologically connected to the known crystal structure by a low-barrier collective rotation of the icosahedral Au13 core. The isomerization takes place without breaking of any Au-S bonds. The predicted isomer is essentially iso-energetic with the known Au25(SR)18- structure, but has a distinctly different optical spectrum. It has a significantly larger collision cross-section as compared to that of the known structure, which suggests it could be detectable in gas phase ion-mobility mass spectrometry.
    Functional thin films are commonly integrated in electronic devices as part of a multi-layer architecture. Metal/oxide/metal structures e.g. in resistive switching memory and piezoelectric microelectrochemical devices are relevant applications. The films are mostly fabricated from the vapour phase or by solution deposition. Processing conditions with a limited thermal budget typically yield nanocrystalline or amorphous layers. https://www.selleckchem.com/products/sto-609.html For these aperiodic materials, the structure is described in terms of the local atomic order on the length scale of a few chemical bonds up to several nanometres. Previous structural studies of the short-range order in thin films have addressed the simple case of single coatings on amorphous substrates. By contrast, this work demonstrates how to probe the local structure of two stacked functional layers by means of grazing incidence total X-ray scattering and pair distribution function (PDF) analysis. The key to separating the contributions of the individual thin films is the variation of the incidence angle below the critical angle of total external reflection, In this way, structural information was obtained for functional oxides on textured electrodes, i.e. PbZr0.53O0.47O3 on Pt[111] and HfO2 on TiN, as well as HfO2-TiOx bilayers. For these systems, the transformations from disordered phases into periodic structures via thermal teatment are described. These examples highlight the opportunity to develop a detailed understanding of structural evolution during the fabrication of real thin film devices using the PDF technique.Deep vein thrombosis (DVT) often occurs in the lower limb veins of bedridden patients and greatly reduces the quality of life. The altered blood flow in venous valves induced by the insufficient efficacy of the muscle pump is commonly considered as a main factor. However, it is still a great challenge to observe the altered blood flow in real time, and its role in the formation of thrombi is poorly understood. Here we make a microfluidic venous valve model with flexible leaflets in a deformable channel that can mimic the motion of valves and the compression of vessels by muscle contraction, and identify the stasis and intermittent reflux in the valve pocket generated by the muscle pump. A thrombus forms in the stasis flow, while the intermittent reflux removes the fibrin and inhibits the growth of the thrombus. A flexible microfluidic device that can mimic the motion of valves and the contraction of vessels would have wide applications in the research on cardiovascular diseases.Complex emulsions are used to fabricate new morphologies of multiple Janus droplets, evolving from non-engulfing to complete engulfing core/shell configuration. The produced droplets contain an aqueous phase of dextran (DEX) solution and an oil phase, which is mixed with ethoxylated trimethylolpropane triacrylate (ETPTA) and poly(ethylene glycol) diacrylate (PEGDA). The PEGDA in the oil phase is transferred into the aqueous phase to form complex morphologies due to the phase separation of PEGDA and DEX. The effects are investigated including the ratio of oil to aqueous phase, the content of initial PEGDA, DEX and surfactants, and the type of surfactants. DEX/PEGDA-ETPTA core/shell-single phase Janus droplets are formed with an increasing engulfed oil droplet into the aqueous droplet while the ratio of oil to aqueous phase increases or the initial PEGDA content increases. The high DEX content leads to the DEX-PEGDA-ETPTA doublet Janus. The use of surfactants polyglycerol polyricinoleate (PGPR) and Span 80 results in the formation of DEX/PEGDA/ETPTA single core/double shell and DEX/PEGDA-ETPTA core/shell-single phase Janus droplets, respectively. These complex emulsions are utilized to fabricate solid particles of complex shapes. This method contributes to new material design underpinned by mass transfer and phase separation, which can be extended to other complex emulsion systems.Carbon nanotubes (CNTs) exhibit outstanding electrical and mechanical properties, but these superior properties are often compromised as nanotubes are assembled into bulk structures, which limits the use of CNT assemblies. Despite much work in this field, few studies have made in situ observations of the relationship between electrical conductivity and the amount of nanowelding within pristine CNT assemblies at the microscopic scale. Here, we report in situ transmission electron microscopy observations of electrical conductivity increase of CNT bundles. High-temperature Joule heating was applied to a CNT bundle to fuse adjacent carbon nanofibers with graphitic carbon bonds, as this causes the electrical conductivity of the CNT bundle to increase three orders of magnitude. Apart from the welding process of the cross-over CNT bundles, we further observed a new case of welding process of parallel CNT bundles. Here, we not only obtain the relationship between electrical conductivity of CNT bundles and their merging processes, but also show the effect of the relationship between electrical conductivity and Joule-heating induced temperature on CNT bundles, which follows the natural logarithm law. Improving effective inter-bonding between neighboring nanotubes would help facilitate large-scale development of high-performing, bulk-carbon-based materials from nanostructures in applications such as flexible devices, energy storage, and electrocatalysis.Energetically low-lying structural isomers of the much-studied thiolate-protected gold cluster Au25(SR)18- are discovered from extensive (80 ns) molecular dynamics (MD) simulations using the reactive molecular force field ReaxFF and confirmed by density functional theory (DFT). A particularly interesting isomer is found, which is topologically connected to the known crystal structure by a low-barrier collective rotation of the icosahedral Au13 core. The isomerization takes place without breaking of any Au-S bonds. The predicted isomer is essentially iso-energetic with the known Au25(SR)18- structure, but has a distinctly different optical spectrum. It has a significantly larger collision cross-section as compared to that of the known structure, which suggests it could be detectable in gas phase ion-mobility mass spectrometry.
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  • However, no hSTC-1 effect on 14C-lactate oxidation was found after increase in the intracellular cAMP. The findings also revealed that the renal cortex and medulla respond differently to hSTC-1, possibly due to the higher level of STC-1 gene expression in inner renal medulla than in renal cortex.Aims Osteoarthritis (OA) is a common degenerative joint disease characterized by cartilage degeneration and joint inflammation. As its pathogenesis remains unclear, there are no effective treatments established. https://www.selleckchem.com/products/AC-220.html Circular RNA (circRNA), microRNA (miRNA), and other noncoding RNAs participate in OA development; however, the effects and mechanisms of circRNA and miRNA in OA remain unknown. Main methods Cartilage miRNA was examined in patients with and without OA. Key findings CircRNA-9119 and phosphatase and tensin homolog (PTEN) expression decreased in OA-affected cartilage and interleukin (IL)-1β-induced chondrocytes, and miR-26a expression significantly decreased in normal cells and tissues. CircRNA-9119 overexpression restored chondrocyte growth, whereas IL-1β treatment impaired chondrocyte growth. Annexin V-FITC & PI flow cytometry and Bcl-2/Bax ratio measurement indicated that the apoptosis of IL-1β-treated articular chondrocytes was decreased by circRNA-9119 upregulation. Bioinformatic prediction and the dual-luciferase reporter assay indicated that circRNA-9119 served as a miR-26a sponge and that miR-26a targeted the 3'-UTR of PTEN. Transfection of chondrocytes with a circRNA-9119-overexpressing vector revealed downregulation of miR-26a expression. Furthermore, circRNA-9119 overexpression induced PTEN expression. In addition, a miR-26a mimic induced IL-1β-induced chondrocyte apoptosis, and circRNA-9119 overexpression inhibited IL-1β-induced chondrocyte apoptosis. Significance CircRNA-9119 is an important regulator of IL-1β-treated chondrocytes through the miR-26a/PTEN axis, possibly contributing to OA development.Aims Liver kinase B1 (LKB1) deficiency is associated with reduced expression of programmed death ligand 1 (PD-L1) and inferior clinical outcomes of PD-1/PD-L1 blockade in non-small cell lung cancer (NSCLC). This study aimed to investigate the mechanism by which LKB1 regulates PD-L1 expression and its role in programmed death 1 (PD-1) blockade therapy in NSCLC. Main methods The impact of LKB1 on PD-L1 was assessed by western blot, qRT-PCR and immunohistochemistry in NSCLC. Activators/inhibitors of AMPK and NRF2 were applied to explore the mechanisms underlying the regulation of PD-L1 by LKB1. Efficiency of combined application of metformin and PD-1 blockade was evaluated in immunocompetent C57BL/6 ****. Key findings A remarkable positive correlation between LKB1 and PD-L1 expression was demonstrated in NSCLC tissues. Knockdown of LKB1 decreased PD-L1 in TC-1 cells, whereas overexpression of LKB1 increased PD-L1 in A549 cells. We further characterized that AMPK mediated the upregulation of PD-L1 by LKB1. Inhibition of AMPK or NRF2 markedly reduced PD-L1 in LKB1-intact NSCLC cells. In contrast, activation of AMPK or NRF2 reversed PD-L1 expression in LKB1-deficient NSCLC cells. Combined administration of metformin and anti-PD-1 antibody efficiently inhibited the growth of LKB1-intact tumors, whereas no obvious suppression was observed in LKB1-deficient tumors. Significance These findings demonstrated that LKB1 upregulates PD-L1 expression in NSCLC by activating the AMPK and KEAP1/NRF2 signaling. Activation of LKB1-AMPK with metformin improves the therapeutic effect of PD-1 blockade in NSCLC with wild-type LKB1.Background Atherosclerosis as a progressive inflammatory disease is the main cause of Coronary Artery Disease (***). Multiple genetic and environmental factors are involved in susceptibility to atherosclerotic vascular diseases. FOXO1 gene acts as a key molecular proinflammatory transcription factor and the FBOX32 gene as an F-box protein plays pivotal roles in regulation of muscle atrophy and inhibition of the pathologic cardiac hypertrophy. MiR-27a has been reported to contribute to atherosclerosis prevention and the inflammatory processes of atherosclerosis. MicroRNA-23a has been found to promote atherosclerotic plaque progression and vulnerability. Hence, given the importance of these subjects, the present study was carried out to investigate the expression levels of the desired genes. Methodology In this case-control study, 82 patients with *** and 80 healthy controls were investigated. Expression levels of miRNAs -27a and 23a, FOXO1, Sirtuin 1 (SIRT1) in the Peripheral Blood Mononuclear Cells (PBMCs), serum concentration of IL6 and TNF-α of the studied subjects were evaluated using the real-time Polymerase Chain Reaction (PCR) technique. The correlation between the variables was also investigated. Results Results of the study demonstrated that expression of FOXO1, IL-6, TNF-α, miR-27a, and miR-23a increased in the PBMCs of the patients with *** and their expression levels were significantly correlated with the severity of stenosis. A significant decrease was observed in the expression of SIRT1 in the patients with *** compared to the healthy controls. Furthermore, the Receiver Operating Characteristic (ROC) curve was plotted to find the effectiveness of FOXO1 and miRNA-27a gene expression as a diagnostic marker for ***. Conclusions Findings of the study suggested that miRs-27a and FOXO1 genes have a potential role in the progression of atherosclerosis and mediate the molecular and genetic disturbances of the intracellular communication in the atherosclerosis.Background For adolescents, asthma management can be challenging during the transition to adulthood, and changes in healthcare and pharmacological treatment may occur. Objective To investigate asthma-related healthcare consumption and pharmacological dispensation during the transition process. Methods In a Swedish birth cohort study, questionnaire and clinical data from the 16- and 24-year follow-ups were linked to national and regional registries for asthma-related healthcare consumption and dispensed medications during an eight-year period four years before and after 18 years of age, respectively. Results In the study population (n = 1,808), 14% fulfilled the study definition of current asthma at the 16-, respective 24-year follow-up, and 8% (n = 147) had persistent asthma. Among them, register data showed that in the four-year period before their 18th birthday, 39% (58/147) had at least one consultation, similar with 37% (55/147) in the following four-year period. The mean number of consultations before 18 years was 1.
    However, no hSTC-1 effect on 14C-lactate oxidation was found after increase in the intracellular cAMP. The findings also revealed that the renal cortex and medulla respond differently to hSTC-1, possibly due to the higher level of STC-1 gene expression in inner renal medulla than in renal cortex.Aims Osteoarthritis (OA) is a common degenerative joint disease characterized by cartilage degeneration and joint inflammation. As its pathogenesis remains unclear, there are no effective treatments established. https://www.selleckchem.com/products/AC-220.html Circular RNA (circRNA), microRNA (miRNA), and other noncoding RNAs participate in OA development; however, the effects and mechanisms of circRNA and miRNA in OA remain unknown. Main methods Cartilage miRNA was examined in patients with and without OA. Key findings CircRNA-9119 and phosphatase and tensin homolog (PTEN) expression decreased in OA-affected cartilage and interleukin (IL)-1β-induced chondrocytes, and miR-26a expression significantly decreased in normal cells and tissues. CircRNA-9119 overexpression restored chondrocyte growth, whereas IL-1β treatment impaired chondrocyte growth. Annexin V-FITC & PI flow cytometry and Bcl-2/Bax ratio measurement indicated that the apoptosis of IL-1β-treated articular chondrocytes was decreased by circRNA-9119 upregulation. Bioinformatic prediction and the dual-luciferase reporter assay indicated that circRNA-9119 served as a miR-26a sponge and that miR-26a targeted the 3'-UTR of PTEN. Transfection of chondrocytes with a circRNA-9119-overexpressing vector revealed downregulation of miR-26a expression. Furthermore, circRNA-9119 overexpression induced PTEN expression. In addition, a miR-26a mimic induced IL-1β-induced chondrocyte apoptosis, and circRNA-9119 overexpression inhibited IL-1β-induced chondrocyte apoptosis. Significance CircRNA-9119 is an important regulator of IL-1β-treated chondrocytes through the miR-26a/PTEN axis, possibly contributing to OA development.Aims Liver kinase B1 (LKB1) deficiency is associated with reduced expression of programmed death ligand 1 (PD-L1) and inferior clinical outcomes of PD-1/PD-L1 blockade in non-small cell lung cancer (NSCLC). This study aimed to investigate the mechanism by which LKB1 regulates PD-L1 expression and its role in programmed death 1 (PD-1) blockade therapy in NSCLC. Main methods The impact of LKB1 on PD-L1 was assessed by western blot, qRT-PCR and immunohistochemistry in NSCLC. Activators/inhibitors of AMPK and NRF2 were applied to explore the mechanisms underlying the regulation of PD-L1 by LKB1. Efficiency of combined application of metformin and PD-1 blockade was evaluated in immunocompetent C57BL/6 mice. Key findings A remarkable positive correlation between LKB1 and PD-L1 expression was demonstrated in NSCLC tissues. Knockdown of LKB1 decreased PD-L1 in TC-1 cells, whereas overexpression of LKB1 increased PD-L1 in A549 cells. We further characterized that AMPK mediated the upregulation of PD-L1 by LKB1. Inhibition of AMPK or NRF2 markedly reduced PD-L1 in LKB1-intact NSCLC cells. In contrast, activation of AMPK or NRF2 reversed PD-L1 expression in LKB1-deficient NSCLC cells. Combined administration of metformin and anti-PD-1 antibody efficiently inhibited the growth of LKB1-intact tumors, whereas no obvious suppression was observed in LKB1-deficient tumors. Significance These findings demonstrated that LKB1 upregulates PD-L1 expression in NSCLC by activating the AMPK and KEAP1/NRF2 signaling. Activation of LKB1-AMPK with metformin improves the therapeutic effect of PD-1 blockade in NSCLC with wild-type LKB1.Background Atherosclerosis as a progressive inflammatory disease is the main cause of Coronary Artery Disease (CAD). Multiple genetic and environmental factors are involved in susceptibility to atherosclerotic vascular diseases. FOXO1 gene acts as a key molecular proinflammatory transcription factor and the FBOX32 gene as an F-box protein plays pivotal roles in regulation of muscle atrophy and inhibition of the pathologic cardiac hypertrophy. MiR-27a has been reported to contribute to atherosclerosis prevention and the inflammatory processes of atherosclerosis. MicroRNA-23a has been found to promote atherosclerotic plaque progression and vulnerability. Hence, given the importance of these subjects, the present study was carried out to investigate the expression levels of the desired genes. Methodology In this case-control study, 82 patients with CAD and 80 healthy controls were investigated. Expression levels of miRNAs -27a and 23a, FOXO1, Sirtuin 1 (SIRT1) in the Peripheral Blood Mononuclear Cells (PBMCs), serum concentration of IL6 and TNF-α of the studied subjects were evaluated using the real-time Polymerase Chain Reaction (PCR) technique. The correlation between the variables was also investigated. Results Results of the study demonstrated that expression of FOXO1, IL-6, TNF-α, miR-27a, and miR-23a increased in the PBMCs of the patients with CAD and their expression levels were significantly correlated with the severity of stenosis. A significant decrease was observed in the expression of SIRT1 in the patients with CAD compared to the healthy controls. Furthermore, the Receiver Operating Characteristic (ROC) curve was plotted to find the effectiveness of FOXO1 and miRNA-27a gene expression as a diagnostic marker for CAD. Conclusions Findings of the study suggested that miRs-27a and FOXO1 genes have a potential role in the progression of atherosclerosis and mediate the molecular and genetic disturbances of the intracellular communication in the atherosclerosis.Background For adolescents, asthma management can be challenging during the transition to adulthood, and changes in healthcare and pharmacological treatment may occur. Objective To investigate asthma-related healthcare consumption and pharmacological dispensation during the transition process. Methods In a Swedish birth cohort study, questionnaire and clinical data from the 16- and 24-year follow-ups were linked to national and regional registries for asthma-related healthcare consumption and dispensed medications during an eight-year period four years before and after 18 years of age, respectively. Results In the study population (n = 1,808), 14% fulfilled the study definition of current asthma at the 16-, respective 24-year follow-up, and 8% (n = 147) had persistent asthma. Among them, register data showed that in the four-year period before their 18th birthday, 39% (58/147) had at least one consultation, similar with 37% (55/147) in the following four-year period. The mean number of consultations before 18 years was 1.
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  • BACKGROUND Recently, the UK Armed Forces have revised the ground close combat role to include women. AIMS To assess the potential mental health impact of this initiative we examined gender differences in deployment patterns, work strain, occupational factors, mental health, alcohol use and help-seeking following operational deployment. METHODS The study was a secondary analysis of self-report survey data; 8799 men (88%) and 1185 women (12%) provided data. A sub-sample (47%, n = 4659) provided data concerning post-deployment help-seeking. The latter consisted of 408 women (8.8%) and 4251 men (91%). RESULTS With the exception of alcohol misuse, which was significantly lower for women, women reported significantly more common mental disorder symptoms, subjective depression and self-harm. Women were significantly more likely to seek help from healthcare providers. Men were significantly more likely to have deployed operationally and for longer cumulative periods. Subjective work strain, but not job control, was significantly lower for women whose military careers were significantly shorter. Post-traumatic stress disorder (PTSD) symptom intensity was similar to men. CONCLUSIONS With the exception of PTSD and alcohol misuse, UK military women experience more mental health-related problems than military men. This finding was not related to the more arduous aspects of military service as women served for shorter times, deployed less and for shorter cumulative periods and were less likely to report work-related stress. © The Author(s) 2020. Published by Oxford University Press on behalf of the Society of Occupational Medicine. All rights reserved. For Permissions, please email journals.permissions@oup.com.BACKGROUND Giardiasis is the most common intestinal parasitic disease of humans identified in the United States and an important waterborne disease. In the United States, giardiasis has been variably reportable since 1992 and was made a nationally notifiable disease in 2002. Our objective was to describe the epidemiology of US giardiasis cases from 1995-2016 using National Notifiable Disease Surveillance System data. METHODS Negative binomial regression models were used to compare incidence rates by age groups (0-4, 5-9, 10-19, 20-29, 30-39, 40-49, 50-64 and ≥65 years) during three time periods (1995-2001, 2002-2010 and 2011-2016). RESULTS From 1995-2016, the average number of reported cases were 19 781 per year (range 14 623-27 778 cases). The annual incidence of reported giardiasis in the US decreased across all age groups. This decrease differs by age group and sex and may reflect either changes in surveillance methods (for example changes to case definitions or reporting practices) or changes in exposure. Incidence rates in males and older age groups did not decrease to the same extent as rates in females and children. CONCLUSIONS Trends suggest that differences in exposures by sex and age group are important to the epidemiology of giardiasis. Further investigation into the risk factors of populations with higher rates of giardiasis will support prevention and control efforts. Published by Oxford University Press for the Infectious Diseases Society of America 2020. This work is written by (a) US Government employee(s) and is in the public domain in the US.OBJECTIVE To determine the factors that explain the levels of patient satisfaction and the role of geographical characteristics. DESIGN Questionnaires to patients of Primary Health Care (PHC) units in Portugal Mainland distributed to each unit according to their size; codes were distributed to guarantee single responses; the questionnaire was anonymous and confidential. SETTING Primary Health Care units in Portugal Mainland. PARTICIPANTS Primary health care patients. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Overall patient satisfaction. RESULTS The main results indicate that the most significant dimension explaining overall patient satisfaction index is the satisfaction regarding general practitioner (GP) care, and the two other most significant explanatory variables of satisfaction are to be enrolled in a GP list and education. The bigger is the size of a PHC unit the lower is satisfaction. In rural areas, the level of satisfaction is higher than in urban areas. Comparing to the Lisbon metropolitan area, all other regions show a higher satisfaction in access dimension. CONCLUSIONS These results contribute to the creation of strategic information relevant to the evaluation of the various models of Primary Health Care, to the commissioning and definition of health policies. © The Author(s) 2020. Published by Oxford University Press in association with the International Society for Quality in Health Care. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.AIMS Recent youth with Attention Deficit Hyperactivity Disorder (ADHD) noticed emotional dysregulation if they had Internet Gaming Disorder (IGD). This study aims to understand the treatment efficacy of Internet Gaming Disorder with Attention Deficit Hyperactivity Disorder and Emotional Dysregulaton. METHOD 101 ADHD youths were recruited. We used Chen Internet Addiction Scale (CIAS) and IGD criteria of DSM-5 to confirm IGD. The Swanson, Nolan, and Pelham, questionnaire Version IV (SNAP-IV) was used for symptoms of ADHD and oppositional defiant disorder (ODD). Disruptive mood Dysregulation Disorder was assessed by psychiatrist. RESULT There is a new phenomenon that emotional dysregulation frequently noticed on severely gaming addicted ADHD youth. Treatment efficacy of IGD is good when the underlying symptom of ADHD is controlled. Symptom scores of DMDD were significantly reduced by 71.9%, 74.8%, and 84.4% at week 2, 3, and 4, respectively (p ≤ 0.001) after adjusting baseline symptom severity. CONCLUSION Internet Gaming Disorder may strongly arouse emotional dysregulation. Future DSM criteria could consider these gaming addicted youth as a specific sub-class of ADHD. © The Author(s) 2020. Published by Oxford University Press on behalf of CINP.STUDY OBJECTIVES To evaluate functional connectivity and topological properties of brain networks, and to investigate the association between brain topological properties and neuropsychiatric behaviors in adolescent narcolepsy. https://www.selleckchem.com/products/tmp269.html METHODS Resting-state functional magnetic resonance imaging and neuropsychological assessment were applied in 26 adolescent narcolepsy patients and 30 healthy controls. Functional magnetic resonance imaging data were analyzed in 3 ways group independent component analysis and a graph theoretical method were applied to evaluate topological properties within the whole brain. Lastly, network-based statistics was utilized for group comparisons in region-to-region connectivity. The relationship between topological properties and neuropsychiatric behaviors was analyzed with correlation analyses. RESULTS In addition to sleepiness, depressive symptoms and impulsivity were detected in adolescent narcolepsy. In adolescent narcolepsy, functional connectivity was decreased between regions of the limbic system and the default mode network, and increased in the visual network.
    BACKGROUND Recently, the UK Armed Forces have revised the ground close combat role to include women. AIMS To assess the potential mental health impact of this initiative we examined gender differences in deployment patterns, work strain, occupational factors, mental health, alcohol use and help-seeking following operational deployment. METHODS The study was a secondary analysis of self-report survey data; 8799 men (88%) and 1185 women (12%) provided data. A sub-sample (47%, n = 4659) provided data concerning post-deployment help-seeking. The latter consisted of 408 women (8.8%) and 4251 men (91%). RESULTS With the exception of alcohol misuse, which was significantly lower for women, women reported significantly more common mental disorder symptoms, subjective depression and self-harm. Women were significantly more likely to seek help from healthcare providers. Men were significantly more likely to have deployed operationally and for longer cumulative periods. Subjective work strain, but not job control, was significantly lower for women whose military careers were significantly shorter. Post-traumatic stress disorder (PTSD) symptom intensity was similar to men. CONCLUSIONS With the exception of PTSD and alcohol misuse, UK military women experience more mental health-related problems than military men. This finding was not related to the more arduous aspects of military service as women served for shorter times, deployed less and for shorter cumulative periods and were less likely to report work-related stress. © The Author(s) 2020. Published by Oxford University Press on behalf of the Society of Occupational Medicine. All rights reserved. For Permissions, please email journals.permissions@oup.com.BACKGROUND Giardiasis is the most common intestinal parasitic disease of humans identified in the United States and an important waterborne disease. In the United States, giardiasis has been variably reportable since 1992 and was made a nationally notifiable disease in 2002. Our objective was to describe the epidemiology of US giardiasis cases from 1995-2016 using National Notifiable Disease Surveillance System data. METHODS Negative binomial regression models were used to compare incidence rates by age groups (0-4, 5-9, 10-19, 20-29, 30-39, 40-49, 50-64 and ≥65 years) during three time periods (1995-2001, 2002-2010 and 2011-2016). RESULTS From 1995-2016, the average number of reported cases were 19 781 per year (range 14 623-27 778 cases). The annual incidence of reported giardiasis in the US decreased across all age groups. This decrease differs by age group and sex and may reflect either changes in surveillance methods (for example changes to case definitions or reporting practices) or changes in exposure. Incidence rates in males and older age groups did not decrease to the same extent as rates in females and children. CONCLUSIONS Trends suggest that differences in exposures by sex and age group are important to the epidemiology of giardiasis. Further investigation into the risk factors of populations with higher rates of giardiasis will support prevention and control efforts. Published by Oxford University Press for the Infectious Diseases Society of America 2020. This work is written by (a) US Government employee(s) and is in the public domain in the US.OBJECTIVE To determine the factors that explain the levels of patient satisfaction and the role of geographical characteristics. DESIGN Questionnaires to patients of Primary Health Care (PHC) units in Portugal Mainland distributed to each unit according to their size; codes were distributed to guarantee single responses; the questionnaire was anonymous and confidential. SETTING Primary Health Care units in Portugal Mainland. PARTICIPANTS Primary health care patients. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Overall patient satisfaction. RESULTS The main results indicate that the most significant dimension explaining overall patient satisfaction index is the satisfaction regarding general practitioner (GP) care, and the two other most significant explanatory variables of satisfaction are to be enrolled in a GP list and education. The bigger is the size of a PHC unit the lower is satisfaction. In rural areas, the level of satisfaction is higher than in urban areas. Comparing to the Lisbon metropolitan area, all other regions show a higher satisfaction in access dimension. CONCLUSIONS These results contribute to the creation of strategic information relevant to the evaluation of the various models of Primary Health Care, to the commissioning and definition of health policies. © The Author(s) 2020. Published by Oxford University Press in association with the International Society for Quality in Health Care. All rights reserved. For permissions, please e-mail journals.permissions@oup.com.AIMS Recent youth with Attention Deficit Hyperactivity Disorder (ADHD) noticed emotional dysregulation if they had Internet Gaming Disorder (IGD). This study aims to understand the treatment efficacy of Internet Gaming Disorder with Attention Deficit Hyperactivity Disorder and Emotional Dysregulaton. METHOD 101 ADHD youths were recruited. We used Chen Internet Addiction Scale (CIAS) and IGD criteria of DSM-5 to confirm IGD. The Swanson, Nolan, and Pelham, questionnaire Version IV (SNAP-IV) was used for symptoms of ADHD and oppositional defiant disorder (ODD). Disruptive mood Dysregulation Disorder was assessed by psychiatrist. RESULT There is a new phenomenon that emotional dysregulation frequently noticed on severely gaming addicted ADHD youth. Treatment efficacy of IGD is good when the underlying symptom of ADHD is controlled. Symptom scores of DMDD were significantly reduced by 71.9%, 74.8%, and 84.4% at week 2, 3, and 4, respectively (p ≤ 0.001) after adjusting baseline symptom severity. CONCLUSION Internet Gaming Disorder may strongly arouse emotional dysregulation. Future DSM criteria could consider these gaming addicted youth as a specific sub-class of ADHD. © The Author(s) 2020. Published by Oxford University Press on behalf of CINP.STUDY OBJECTIVES To evaluate functional connectivity and topological properties of brain networks, and to investigate the association between brain topological properties and neuropsychiatric behaviors in adolescent narcolepsy. https://www.selleckchem.com/products/tmp269.html METHODS Resting-state functional magnetic resonance imaging and neuropsychological assessment were applied in 26 adolescent narcolepsy patients and 30 healthy controls. Functional magnetic resonance imaging data were analyzed in 3 ways group independent component analysis and a graph theoretical method were applied to evaluate topological properties within the whole brain. Lastly, network-based statistics was utilized for group comparisons in region-to-region connectivity. The relationship between topological properties and neuropsychiatric behaviors was analyzed with correlation analyses. RESULTS In addition to sleepiness, depressive symptoms and impulsivity were detected in adolescent narcolepsy. In adolescent narcolepsy, functional connectivity was decreased between regions of the limbic system and the default mode network, and increased in the visual network.
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  • Since the fuzzy local information C-means (FLICM) segmentation algorithm cannot take into account the impact of different features on clustering segmentation results, a local fuzzy clustering segmentation algorithm based on a feature selection Gaussian mixture model was proposed. First, the constraints of the membership degree on the spatial distance were added to the local information function. Second, the feature saliency was introduced into the objective function. By using the Lagrange multiplier method, the optimal expression of the objective function was solved. Neighborhood weighting information was added to the iteration expression of the classification membership degree to obtain a local feature selection based on feature selection. Each of the improved FLICM algorithm, the fuzzy C-means with spatial constraints (FCM_S) algorithm, and the original FLICM algorithm were then used to cluster and segment the interference images of Gaussian noise, salt-and-pepper noise, multiplicative noise, and mixed noise. The performances of the peak signal-to-noise ratio and error rate of the segmentation results were compared with each other. At the same time, the iteration time and number of iterations used to converge the objective function of the algorithm were compared. In summary, the improved algorithm significantly improved the ability of image noise suppression under strong noise interference, improved the efficiency of operation, facilitated remote sensing image capture under strong noise interference, and promoted the development of a robust anti-noise fuzzy clustering algorithm.We collated publicly available single-cell expression profiles of circulating tumor cells (CTCs) and showed that CTCs across cancers lie on a near-perfect continuum of epithelial to mesenchymal (EMT) transition. Integrative analysis of CTC transcriptomes also highlighted the inverse gene expression pattern between PD-L1 and MHC, which is implicated in cancer immunotherapy. We used the CTCs expression profiles in tandem with publicly available peripheral blood mononuclear cell (PBMC) transcriptomes to train a classifier that accurately recognizes CTCs of diverse phenotype. Further, we used this classifier to validate circulating breast tumor cells captured using a newly developed microfluidic system for label-free enrichment of CTCs.Resveratrol (3,5,4'-trihydroxystilbene) is a natural phytoalexin that accumulates in several vegetables and fruits like nuts, grapes, apples, red fruits, black olives, capers, red rice as well as red wines. Being both an extremely reactive molecule and capable to interact with cytoplasmic and nuclear proteins in human cells, resveratrol has been studied over the years as complementary and alternative medicine (CAM) for the therapy of cancer, metabolic and cardiovascular diseases like myocardial ischemia, myocarditis, cardiac hypertrophy and heart failure. This review will describe the main biological targets, cardiovascular outcomes, physico-chemical and pharmacokinetic properties of resveratrol in preclinical and clinical models implementing its potential use in cancer patients.BACKGROUND To deal with complexity in cancer care, computerized clinical decision support systems (CDSSs) are developed to support quality of care and improve decision-making. We performed a systematic review to explore the value of CDSSs using automated clinical guidelines, Artificial Intelligence, datamining or statistical methods (higher level CDSSs) on the quality of care in oncology. MATERIALS AND METHODS The search strategy combined synonyms for 'CDSS' and 'cancer.' Pubmed, Embase, The Cochrane Library, Institute of Electrical and Electronics Engineers, Association of Computing Machinery digital library and Web of Science were systematically searched from January 2000 to December 2019. Included studies evaluated the impact of higher level CDSSs on process outcomes, guideline adherence and clinical outcomes. RESULTS 11,397 studies were selected for screening, after which 61 full-text articles were assessed for eligibility. Finally, nine studies were included in the final analysis with a total population size of 7985 patients. Types of cancer included breast cancer (63.1%), lung cancer (27.8%), prostate cancer (4.1%), colorectal cancer (3.1%) and other cancer types (1.9%). The included studies demonstrated significant improvements of higher level CDSSs on process outcomes and guideline adherence across diverse settings in oncology. No significant differences were reported for clinical outcomes. CONCLUSION Higher level CDSSs seem to improve process outcomes and guidelines adherence but not clinical outcomes. It should be noticed that the included studies primarily focused on breast and lung cancer. To further explore the impact of higher level CDSSs on quality of care, high-quality research is required.In this work, we have used low-molecular-weight (PEG12-b-PCL6, PEG12-b-PCL9 or PEG16-b-PLA38; MW, 1.25-3.45 kDa) biodegradable block co-polymers to construct nano- and micron-scaled hybrid (polymer/lipid) vesicles, by solvent dispersion and electroformation methods, respectively. The hybrid vesicles exhibit physical properties (size, bilayer thickness and small molecule encapsulation) of a vesicular boundary, confirmed by cryogenic transmission electron microscopy, calcein leakage assay and dynamic light scattering. Importantly, we find that these low MW polymers, on their own, do not self-assemble into polymersomes at nano and micron scales. Using giant unilamellar vesicles (GUVs) model, their surface topographies are homogeneous, independent of cholesterol, suggesting more energetically favorable mixing of lipid and polymer. https://www.selleckchem.com/products/sto-609.html Despite this mixed topography with a bilayer thickness similar to that of a lipid bilayer, variation in surface topology is demonstrated using the interfacial sensitive phospholipase A2 (sPLA2). The biodegradable hybrid vesicles are less sensitive to the phospholipase digestion, reminiscent of PEGylated vesicles, and the degree of sensitivity is polymer-dependent, implying that the nano-scale surface topology can further be tuned by its chemical composition. Our results reveal and emphasize the role of phospholipids in promoting low MW polymers for spontaneous vesicular self-assembly, generating a functional hybrid lipid-polymer interface.
    Since the fuzzy local information C-means (FLICM) segmentation algorithm cannot take into account the impact of different features on clustering segmentation results, a local fuzzy clustering segmentation algorithm based on a feature selection Gaussian mixture model was proposed. First, the constraints of the membership degree on the spatial distance were added to the local information function. Second, the feature saliency was introduced into the objective function. By using the Lagrange multiplier method, the optimal expression of the objective function was solved. Neighborhood weighting information was added to the iteration expression of the classification membership degree to obtain a local feature selection based on feature selection. Each of the improved FLICM algorithm, the fuzzy C-means with spatial constraints (FCM_S) algorithm, and the original FLICM algorithm were then used to cluster and segment the interference images of Gaussian noise, salt-and-pepper noise, multiplicative noise, and mixed noise. The performances of the peak signal-to-noise ratio and error rate of the segmentation results were compared with each other. At the same time, the iteration time and number of iterations used to converge the objective function of the algorithm were compared. In summary, the improved algorithm significantly improved the ability of image noise suppression under strong noise interference, improved the efficiency of operation, facilitated remote sensing image capture under strong noise interference, and promoted the development of a robust anti-noise fuzzy clustering algorithm.We collated publicly available single-cell expression profiles of circulating tumor cells (CTCs) and showed that CTCs across cancers lie on a near-perfect continuum of epithelial to mesenchymal (EMT) transition. Integrative analysis of CTC transcriptomes also highlighted the inverse gene expression pattern between PD-L1 and MHC, which is implicated in cancer immunotherapy. We used the CTCs expression profiles in tandem with publicly available peripheral blood mononuclear cell (PBMC) transcriptomes to train a classifier that accurately recognizes CTCs of diverse phenotype. Further, we used this classifier to validate circulating breast tumor cells captured using a newly developed microfluidic system for label-free enrichment of CTCs.Resveratrol (3,5,4'-trihydroxystilbene) is a natural phytoalexin that accumulates in several vegetables and fruits like nuts, grapes, apples, red fruits, black olives, capers, red rice as well as red wines. Being both an extremely reactive molecule and capable to interact with cytoplasmic and nuclear proteins in human cells, resveratrol has been studied over the years as complementary and alternative medicine (CAM) for the therapy of cancer, metabolic and cardiovascular diseases like myocardial ischemia, myocarditis, cardiac hypertrophy and heart failure. This review will describe the main biological targets, cardiovascular outcomes, physico-chemical and pharmacokinetic properties of resveratrol in preclinical and clinical models implementing its potential use in cancer patients.BACKGROUND To deal with complexity in cancer care, computerized clinical decision support systems (CDSSs) are developed to support quality of care and improve decision-making. We performed a systematic review to explore the value of CDSSs using automated clinical guidelines, Artificial Intelligence, datamining or statistical methods (higher level CDSSs) on the quality of care in oncology. MATERIALS AND METHODS The search strategy combined synonyms for 'CDSS' and 'cancer.' Pubmed, Embase, The Cochrane Library, Institute of Electrical and Electronics Engineers, Association of Computing Machinery digital library and Web of Science were systematically searched from January 2000 to December 2019. Included studies evaluated the impact of higher level CDSSs on process outcomes, guideline adherence and clinical outcomes. RESULTS 11,397 studies were selected for screening, after which 61 full-text articles were assessed for eligibility. Finally, nine studies were included in the final analysis with a total population size of 7985 patients. Types of cancer included breast cancer (63.1%), lung cancer (27.8%), prostate cancer (4.1%), colorectal cancer (3.1%) and other cancer types (1.9%). The included studies demonstrated significant improvements of higher level CDSSs on process outcomes and guideline adherence across diverse settings in oncology. No significant differences were reported for clinical outcomes. CONCLUSION Higher level CDSSs seem to improve process outcomes and guidelines adherence but not clinical outcomes. It should be noticed that the included studies primarily focused on breast and lung cancer. To further explore the impact of higher level CDSSs on quality of care, high-quality research is required.In this work, we have used low-molecular-weight (PEG12-b-PCL6, PEG12-b-PCL9 or PEG16-b-PLA38; MW, 1.25-3.45 kDa) biodegradable block co-polymers to construct nano- and micron-scaled hybrid (polymer/lipid) vesicles, by solvent dispersion and electroformation methods, respectively. The hybrid vesicles exhibit physical properties (size, bilayer thickness and small molecule encapsulation) of a vesicular boundary, confirmed by cryogenic transmission electron microscopy, calcein leakage assay and dynamic light scattering. Importantly, we find that these low MW polymers, on their own, do not self-assemble into polymersomes at nano and micron scales. Using giant unilamellar vesicles (GUVs) model, their surface topographies are homogeneous, independent of cholesterol, suggesting more energetically favorable mixing of lipid and polymer. https://www.selleckchem.com/products/sto-609.html Despite this mixed topography with a bilayer thickness similar to that of a lipid bilayer, variation in surface topology is demonstrated using the interfacial sensitive phospholipase A2 (sPLA2). The biodegradable hybrid vesicles are less sensitive to the phospholipase digestion, reminiscent of PEGylated vesicles, and the degree of sensitivity is polymer-dependent, implying that the nano-scale surface topology can further be tuned by its chemical composition. Our results reveal and emphasize the role of phospholipids in promoting low MW polymers for spontaneous vesicular self-assembly, generating a functional hybrid lipid-polymer interface.
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  • Patients whom developed ileus showed increased abundance of Bacteroides spp., Parabacteroides spp., and Ruminococcus spp., bacteria that are associated with promoting intestinal inflammation. There were no differences in the microbiome in patients that developed surgical site infections or anastomotic leaks. CONCLUSIONS In this pilot study, patients that develop postoperative ileus harbor a specific gut microbiome during the perioperative period. These findings demonstrate that the preoperative bacterial composition may predispose patients to the development of ileus and that perioperative manipulation of the gut bacteria may provide a novel method to promote normal return of bowel function.INTRODUCTION Obese patients with congestive heart failure (CHF) are often denied access to heart transplantation until they obtain significant weight loss to achieve a certain BMI threshold, often less than 35 kg/m2. It is unknown whether the rapid weight loss associated with bariatric surgery leads to improved waitlist placement, and as such improved survival for morbidly obese patients with CHF. METHODS A decision analytic Markov state transition model was created to simulate the life of morbidly obese patients with CHF who were deemed ineligible to be waitlisted for heart transplantation unless they achieved a BMI less than 35 kg/m2. Life expectancy following medical weight management (MWM), Roux-en-Y gastric bypass (RYGB), and sleeve gastrectomy (SG) was estimated. Base case patients were defined as having a pre-intervention BMI of 45 kg/m2. Sensitivity analysis of initial BMI was performed. Markov parameters were extracted from literature review. RESULTS RYGB improved survival compared with both SG and MWM. RYGB patients had higher rates of transplantation, leading to improved mean long-term survival. Base case patients who underwent RYGB gained 2.1 additional years of life compared with patient's who underwent SG and 7.4 additional years of life compared with MWM. SG patients gained 5.3 years of life compared with MWM. CONCLUSIONS When strict waitlist criteria were applied, bariatric surgery improved access to heart transplantation and thereby increased long-term survival compared with MWM. Morbidly obese CHF patients who anticipate need for heart transplantation should be encouraged to pursue surgical weight management strategies, necessitating discussion between bariatric surgeons, cardiologists, and cardiac surgeons for appropriate perioperative risk management.PURPOSE This study aims to determine whether the combination of visiting frequency of the family caregiver and frailty status has an additive effect on the incidence of dependency among hospitalized older patients. METHODS We analyzed the prospective cohort data of hospitalized older patients (65 years and older) with internal medical problems. The main outcome showed patients' dependency from admission to a month after discharge. We investigated the visiting frequency of family caregivers and the frailty status and categorized respondents into 4 groups group 1, visiting frequency 3-7 times a week and non-frailty; group 2, visiting frequency 0-2 times a week and non-frailty; group 3, visiting frequency 3-7 times a week and frailty; or group 4, visiting frequency 0-2 times a week and frailty. We used the Cox proportional hazards regression to estimate the hazard ratios (HR) and confidence intervals (95% CI) of relationships between the combination of visiting frequency and frailty status, and dependency. RESULTS A total of 182 participants who completed the follow-up were analyzed. During the follow-up period, 45 participants (24.7%) showed some dependency. The hazards regression showed that the low visiting frequency group with presence of frailty had the most increased dependency, compared to other groups (adjusted HR 8.61 [95% CI 3.38-21.98]). CONCLUSIONS The coexistence of low visiting frequency and the presence of frailty influenced dependency more strongly than each factor alone. https://www.selleckchem.com/products/Imatinib-Mesylate.html These findings suggest that the combination of visiting frequency and frailty status is a useful predictor for future dependency.PURPOSE OF REVIEW Biologic bone graft materials continue to be an important component of various spinal fusion procedures. Given the known risks and morbidity of harvesting iliac crest bone graft, the historical gold standard for spinal fusion, these biologic materials serve the purpose of improving both the efficacy and safety of spinal fusion procedures. Recent advances in biomedical and materials sciences have enabled the design of many novel materials that have shown promise as effective bone graft materials. This review will discuss current research pertaining to several of these materials, including functionalized peptide amphiphiles and other nanocomposites, novel demineralized bone matrix applications, 3D-printed materials, and Hyperelastic Bone®, among others. RECENT FINDINGS Recent investigation has demonstrated that novel technologies, including nanotechnology and 3D printing, can be used to produce biomaterials with significant osteogenic potential. Notably, peptide amphiphile nanomaterials functionalized to bind BMP-2 have demonstrated significant bone regenerative capacity in a pre-clinical rodent posterolateral lumbar fusion (PLF) model. Additionally, 3D-printed Hyperelastic Bone® has demonstrated promising bone regenerative capacity in several in vivo animal models. Composite materials such as TrioMatrix® (demineralized bone matrix, hydroxyapatite, and nanofiber-based collagen scaffold) have also demonstrated significant osteogenic potential in both in vitro and in vivo settings. Advances in materials science and engineering have allowed for the design and implementation of several novel biologic materials, including nanocomposites, 3D-printed materials, and various biologic composites. These materials provide significant bone regenerative capacity and have the potential to be alternatives to other bone graft materials, such as autograft and BMP-2, which have known complications.PURPOSE OF REVIEW There has been a marked increase in the number of ulnar collateral ligament reconstructions performed annually and an associated increase in the amount of recent literature published. It is paramount that surgeons remain up to date on the current literature, as modern indications and surgical techniques continue to improve clinical outcomes. RECENT FINDINGS Our understanding of ulnar collateral ligament (UCL) injuries, treatment indications, and surgical techniques for UCL reconstruction continues to evolve. Despite the rapidly increasing amount of published literature on the topic, a clear and concise surgical algorithm is lacking. Studies have suggested a trend towards improved clinical outcomes and decreased complications with various modifications in UCL reconstruction techniques. Current sport-specific outcome studies have reported conflicting results regarding the effect of UCL reconstruction on an athlete's performance upon returning to sport. With the rising incidence of UCL reconstruction and growing media attention, UCL injuries, reconstruction techniques, and return to sport following UCL surgery are timely topics of interest to clinicians and overhead throwing athletes.
    Patients whom developed ileus showed increased abundance of Bacteroides spp., Parabacteroides spp., and Ruminococcus spp., bacteria that are associated with promoting intestinal inflammation. There were no differences in the microbiome in patients that developed surgical site infections or anastomotic leaks. CONCLUSIONS In this pilot study, patients that develop postoperative ileus harbor a specific gut microbiome during the perioperative period. These findings demonstrate that the preoperative bacterial composition may predispose patients to the development of ileus and that perioperative manipulation of the gut bacteria may provide a novel method to promote normal return of bowel function.INTRODUCTION Obese patients with congestive heart failure (CHF) are often denied access to heart transplantation until they obtain significant weight loss to achieve a certain BMI threshold, often less than 35 kg/m2. It is unknown whether the rapid weight loss associated with bariatric surgery leads to improved waitlist placement, and as such improved survival for morbidly obese patients with CHF. METHODS A decision analytic Markov state transition model was created to simulate the life of morbidly obese patients with CHF who were deemed ineligible to be waitlisted for heart transplantation unless they achieved a BMI less than 35 kg/m2. Life expectancy following medical weight management (MWM), Roux-en-Y gastric bypass (RYGB), and sleeve gastrectomy (SG) was estimated. Base case patients were defined as having a pre-intervention BMI of 45 kg/m2. Sensitivity analysis of initial BMI was performed. Markov parameters were extracted from literature review. RESULTS RYGB improved survival compared with both SG and MWM. RYGB patients had higher rates of transplantation, leading to improved mean long-term survival. Base case patients who underwent RYGB gained 2.1 additional years of life compared with patient's who underwent SG and 7.4 additional years of life compared with MWM. SG patients gained 5.3 years of life compared with MWM. CONCLUSIONS When strict waitlist criteria were applied, bariatric surgery improved access to heart transplantation and thereby increased long-term survival compared with MWM. Morbidly obese CHF patients who anticipate need for heart transplantation should be encouraged to pursue surgical weight management strategies, necessitating discussion between bariatric surgeons, cardiologists, and cardiac surgeons for appropriate perioperative risk management.PURPOSE This study aims to determine whether the combination of visiting frequency of the family caregiver and frailty status has an additive effect on the incidence of dependency among hospitalized older patients. METHODS We analyzed the prospective cohort data of hospitalized older patients (65 years and older) with internal medical problems. The main outcome showed patients' dependency from admission to a month after discharge. We investigated the visiting frequency of family caregivers and the frailty status and categorized respondents into 4 groups group 1, visiting frequency 3-7 times a week and non-frailty; group 2, visiting frequency 0-2 times a week and non-frailty; group 3, visiting frequency 3-7 times a week and frailty; or group 4, visiting frequency 0-2 times a week and frailty. We used the Cox proportional hazards regression to estimate the hazard ratios (HR) and confidence intervals (95% CI) of relationships between the combination of visiting frequency and frailty status, and dependency. RESULTS A total of 182 participants who completed the follow-up were analyzed. During the follow-up period, 45 participants (24.7%) showed some dependency. The hazards regression showed that the low visiting frequency group with presence of frailty had the most increased dependency, compared to other groups (adjusted HR 8.61 [95% CI 3.38-21.98]). CONCLUSIONS The coexistence of low visiting frequency and the presence of frailty influenced dependency more strongly than each factor alone. https://www.selleckchem.com/products/Imatinib-Mesylate.html These findings suggest that the combination of visiting frequency and frailty status is a useful predictor for future dependency.PURPOSE OF REVIEW Biologic bone graft materials continue to be an important component of various spinal fusion procedures. Given the known risks and morbidity of harvesting iliac crest bone graft, the historical gold standard for spinal fusion, these biologic materials serve the purpose of improving both the efficacy and safety of spinal fusion procedures. Recent advances in biomedical and materials sciences have enabled the design of many novel materials that have shown promise as effective bone graft materials. This review will discuss current research pertaining to several of these materials, including functionalized peptide amphiphiles and other nanocomposites, novel demineralized bone matrix applications, 3D-printed materials, and Hyperelastic Bone®, among others. RECENT FINDINGS Recent investigation has demonstrated that novel technologies, including nanotechnology and 3D printing, can be used to produce biomaterials with significant osteogenic potential. Notably, peptide amphiphile nanomaterials functionalized to bind BMP-2 have demonstrated significant bone regenerative capacity in a pre-clinical rodent posterolateral lumbar fusion (PLF) model. Additionally, 3D-printed Hyperelastic Bone® has demonstrated promising bone regenerative capacity in several in vivo animal models. Composite materials such as TrioMatrix® (demineralized bone matrix, hydroxyapatite, and nanofiber-based collagen scaffold) have also demonstrated significant osteogenic potential in both in vitro and in vivo settings. Advances in materials science and engineering have allowed for the design and implementation of several novel biologic materials, including nanocomposites, 3D-printed materials, and various biologic composites. These materials provide significant bone regenerative capacity and have the potential to be alternatives to other bone graft materials, such as autograft and BMP-2, which have known complications.PURPOSE OF REVIEW There has been a marked increase in the number of ulnar collateral ligament reconstructions performed annually and an associated increase in the amount of recent literature published. It is paramount that surgeons remain up to date on the current literature, as modern indications and surgical techniques continue to improve clinical outcomes. RECENT FINDINGS Our understanding of ulnar collateral ligament (UCL) injuries, treatment indications, and surgical techniques for UCL reconstruction continues to evolve. Despite the rapidly increasing amount of published literature on the topic, a clear and concise surgical algorithm is lacking. Studies have suggested a trend towards improved clinical outcomes and decreased complications with various modifications in UCL reconstruction techniques. Current sport-specific outcome studies have reported conflicting results regarding the effect of UCL reconstruction on an athlete's performance upon returning to sport. With the rising incidence of UCL reconstruction and growing media attention, UCL injuries, reconstruction techniques, and return to sport following UCL surgery are timely topics of interest to clinicians and overhead throwing athletes.
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