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1%) of the early deaths, whereas multi-organ dysfunction syndrome/sepsis had the highest ratio (69.7%) in the late deaths. Statistically AR-42 were found in time distribution according to the mechanism of injury and cause of death (p less then 0.001). CONCLUSION The distribution of overall timing of death was shown to follow a bimodal pattern rather than a trimodal model in Korea. Based on our findings, a suitable and modified trauma system must be developed. © Copyright Yonsei University College of Medicine 2020.PURPOSE Metabolic syndrome (MetS) is a major public health problem related to increased risks of cardiovascular disease and type 2 diabetes. We investigated whether recommended levels of leisure time physical activity (LTPA) decrease the risk of MetS in a community-based prospective cohort study (Ansung and Ansan cohort). MATERIALS AND METHODS A total of 3910 adults (1890 men, 2020 women) without MetS examined in 2001-2002 (baseline) were included in this study and followed up from 2013 to 2014. We measured LTPA energy expenditure using the standard metabolic equivalent value [metabolic equivalent of task (MET)-h/wk]. Individuals were categorized into five groups (physically inactive, 0.1 to less then 7.5, 7.5 to less then 15.0, 15.0 to less then 22.5, 22.5 to less then 40.0, and ≥40.0 MET-h/wk). RESULTS The mean follow-up period was 11.8 years. Among the cohort, 482 men (25.5%) and 541 women (26.8%) were diagnosed with newly developed MetS. Multivariate logistic analysis revealed a 4.4% lower MetS risk among those performing two to three times the recommended minimum of 7.5 MET-h/wk [multivariate relative risk (RR), 0.956; 95% confidence interval (CI), 0.654-1.398] and a 21.9% lower risk among those performing three to four times the physical activity minimum (multivariate RR, 0.781; 95% CI, 0.574-1.063). This association was only significant in females performing three to four times the minimum (crude RR, 0.655; 95% CI, 0.432-0.994). CONCLUSION We noted that physical activity at more than 2 times the recommended minimum prevents MetS. Healthcare professionals should encourage inactive adults to be physically active during their leisure time to take advantage of its health benefits. © Copyright Yonsei University College of Medicine 2020.PURPOSE The goal of this study was to explore the effects of hsa-let-7g on cell proliferation and apoptosis, and elucidate its role in lung cancer development. MATERIALS AND METHODS The expression levels of has-let-7g and HOXB1 in tissues and cells were measured by qRT-PCR. An inhibitor of hsa-let-7g or one targeting a control messenger RNA were transfected into A549 and H1944 lung cancer cells, and the effects of hsa-let-7g dysregulation on cell viability and apoptosis were analyzed using CCK-8 and apoptosis detection assays. HOXB1 was confirmed as the target gene of hsa-let-7g, based on luciferase reporter assay results. The relationship between hsa-let-7g and HOXB1 was confirmed by co-transfection of inhibitors of hsa-let-7g and HOXB1 followed by Western blot, CCK-8, and apoptosis detection assays. RESULTS We observed high expression of hsa-let-7g in lung cancer tissues compared to the corresponding normal tissues, and generally higher expression of hsa-let-7g in patients with advanced tumor classification. The results of CCK-8 and apoptosis detection experiments showed that the inhibition of hsa-let-7g significantly inhibited proliferation of A549 and H1944 cells, but also promoted apoptosis. HOXB1 is a specific target of hsa-let-7g, and downregulation of HOXB1 in lung cancer cells reversed the suppressive effects caused by knocking down hsa-let-7g. CONCLUSION These data collectively suggest that the expression of hsa-let-7g inhibits lung cancer cells apoptosis and promotes proliferation by down-regulating HOXB1. The results from this study demonstrate the potential of hsa-let-7g/HOXB1 axis as a therapeutic target for the treatment of lung cancer. © Copyright Yonsei University College of Medicine 2020.Kinematically aligned total knee arthroplasty (TKA) is a new alignment technique. Kinematic alignment corrects arthritic deformity to the patient's constitutional alignment in order to position the femoral and tibial components, as well as to restore the knee's natural tibial-femoral articular surface, alignment, and natural laxity. Kinematic knee motion moves around a single flexion-extension axis of the distal femur, passing through the center of cylindrically shaped posterior femoral condyles. Since it can be difficult to locate cylindrical axis with conventional instrument, patient-specific instrument (PSI) is used to align the kinematic axes. #link# PSI was recently introduced as a new technology with the goal of improving the accuracy of operative technique, avoiding practical issues related to the complexity of navigation and robotic system, such as the costs and higher number of personnel required. There are several limitations to implement the kinematically aligned TKA with the implant for mechanical alignment. Therefore, it is important to design an implant with the optimal shape for restoring natural knee kinematics that might improve patient-reported satisfaction and function. © Copyright Yonsei University College of Medicine 2020.AIM To examine the effects of a simplified reablement program on physical function and quality of life in hospitalized older patients. METHODS The randomized controlled trial enrolled 114 older patients aged ≥65 years who, 2 weeks before admission, had been able to walk independently. Patients randomized to the reablement group received supervision and assistance to carry out the simplified reablement program 30 min daily during their hospital stay. Patients in the reminding group received only oral encouragement to continue the reablement program for 30 min daily. The control group received only usual care that included medical intervention consistent with the patient's diagnosis. The main outcome was improvement in physical function, including the modified version of the Katz Activities of Daily Living (ADL) score, Timed Up and Go test (TUG) and Hand Grip Strength (HGS). Secondary outcomes included the EuroQoL 5 Dimension (EQ-5D) Questionnaire and Visual Analog Scale (VAS). RESULTS The intervention had no significant effect on the Katz ADL score.
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