Objectively measured sedentary behavior (SB) on weekdays and weekends has been mainly assessed in white-collar workers, while data in blue-collar workers are sparse. Therefore, this study presented the difference in accelerometer-measured SB levels between weekdays and weekends, stratified by white- and blue-collar occupations.
This study was a sub-analysis of accelerometer data from 73 workers (31 blue-collar and 42 white-collar) at a Japanese manufacturing plant. SB was defined as ≤1.5 metabolic equivalents estimated using an accelerometer, and compared between weekdays and weekends by using mixed models adjusted for confounders. The proportion of workers who sat for ≤8h/day on weekdays and weekends were compared using McNemar's test.
In white-collar workers, SB time on weekdays was significantly longer than that on weekends (598 vs 479min/day, P<.001). In blue-collar workers, there was no significant difference in SB time between weekdays and weekends (462 vs 485min/day, P=.43). The proportion of workers who achieved the recommended SB levels (≤8h) was only 4.8% for white-collar workers on weekdays and 54.8% on weekends (P=.04), while that of blue-collar workers was 45.2% and 58.1% respectively (P>.99).
White-collar workers were exposed to significantly longer SB time on weekdays than on weekends, which was not the case in blue-collar workers. It may be rather challenging for white-collar workers to limit their SB time to the level recommended by the latest guidelines for better health, especially on weekdays.
White-collar workers were exposed to significantly longer SB time on weekdays than on weekends, which was not the case in blue-collar workers. It may be rather challenging for white-collar workers to limit their SB time to the level recommended by the latest guidelines for better health, especially on weekdays.Laparoscopic cholecystectomy remains the standard treatment for acute cholecystitis (AC) although it is always not suitable for patients who are poor candidates for surgery. Recently, endoscopic gallbladder (GB) drainage was found to be a potentially revolutionary alternative for cholecystectomy for the control of symptoms, definitive treatment, or bridging therapy until surgery is possible. Two endoscopic methods have been established using either the trans-mural or trans-papillary drainage approach. Endoscopic ultrasound-guided GB drainage (EUS-GBD; trans-mural approach) is a novel technique that allows stent placement between the GB and duodenum or stomach via fistula track, effectively enabling GB drainage. For endoscopic trans-papillary GB drainage (ETGBD; trans-papillary approach), attempts of selective cannulation to the cystic duct should be made to place the stent in the same manner as an endoscopic retrograde cholangiopancreatography. In comparison, EUS-GBD has higher clinical success and lower recurrence rates than ETGBD due to the use of larger-caliber stents, which allow for effective drainage when performed by skilled practitioners at high-volume centers. Advantages of ETGBD over EUS-GBD include more affordable costs and physiologic drainage, which preserves naive anatomy for possible future cholecystectomy. Although the field of endoscopic treatment for AC is rapidly advancing, important questions regarding which method improves clinical outcomes and safety more effectively remain unaddressed. Herein, the current status of endoscopic treatment for AC, including a technical review on clinical outcomes, adverse events, and advantages and disadvantages of each technique are reviewed, as well as other future prospects.Impaired mitochondrial fusion, due in part to decreased mitofusin 2 (Mfn2) expression, contributes to unrestricted cell proliferation and apoptosis-resistance in hyperproliferative diseases like pulmonary arterial hypertension (PAH) and non-small cell lung cancer (NSCLC). We hypothesized that Mfn2 levels are reduced due to increased proteasomal degradation of Mfn2 triggered by its phosphorylation at serine 442 (S442) and investigated the potential kinase mediators. Mfn2 expression was decreased and Mfn2 S442 phosphorylation was increased in pulmonary artery smooth muscle cells from PAH patients and in NSCLC cells. Mfn2 phosphorylation was mediated by PINK1 and protein kinase A (PKA), although only PINK1 expression was increased in these diseases. We designed a S442 phosphorylation deficient Mfn2 construct (PD-Mfn2) and a S442 constitutively phosphorylated Mfn2 construct (CP-Mfn2). The effects of these modified Mfn2 constructs on Mfn2 expression and biological function were compared with those of the wildtype Mfn2 construct (WT-Mfn2). WT-Mfn2 increased Mfn2 expression and mitochondrial fusion in both PAH and NSCLC cells resulting in increased apoptosis and decreased cell proliferation. Compared to WT-Mfn2, PD-Mfn2 caused greater Mfn2 expression, suppression of proliferation, apoptosis induction, and cell cycle arrest. Conversely, CP-Mfn2 caused only a small increase in Mfn2 expression and did not restore mitochondrial fusion, inhibit cell proliferation, or induce apoptosis. Silencing PINK1 or PKA, or proteasome blockade using MG132, increased Mfn2 expression, enhanced mitochondrial fusion and induced apoptosis. In a xenotransplantation NSCLC model, PD-Mfn2 gene therapy caused greater tumor regression than did therapy with WT-Mfn2. Mfn2 deficiency in PAH and NSCLC reflects proteasomal degradation triggered by Mfn2-S442 phosphorylation by PINK1 and/or PKA. Inhibiting Mfn2 phosphorylation has potential therapeutic benefit in PAH and lung cancer.The stretch-shortening cycle (SSC) assists in effective force attenuation upon landing and augments force generation at take-off during a drop vertical jump (DVJ). General performance outcomes such as jump height or peak measures have been used to assess SSC function in youth populations; however, these discrete metrics fail to provide insight into temporal jump-landing characteristics. This study assessed DVJ force-time profiles in 1013 middle and high-school female athletes (n = 279 prepubertal, n = 401 pubertal, and n = 333 postpubertal). Maturity status was determined using the Pubertal Maturation Observation Scale. https://www.selleckchem.com/products/im156.html Ground reaction force data were analyzed to extract a range of variables to characterize force-time profiles. SSC function was categorized as poor, moderate, or good dependent on the presence of an impact peak and spring-like behavior. No differences in jump height or ground contact time were observed between maturity groups (p > 0.05). Significant differences in absolute peak landing and take-off force were evident between all maturational statuses (p less then 0.
Objectively measured sedentary behavior (SB) on weekdays and weekends has been mainly assessed in white-collar workers, while data in blue-collar workers are sparse. Therefore, this study presented the difference in accelerometer-measured SB levels between weekdays and weekends, stratified by white- and blue-collar occupations.
This study was a sub-analysis of accelerometer data from 73 workers (31 blue-collar and 42 white-collar) at a Japanese manufacturing plant. SB was defined as ≤1.5 metabolic equivalents estimated using an accelerometer, and compared between weekdays and weekends by using mixed models adjusted for confounders. The proportion of workers who sat for ≤8h/day on weekdays and weekends were compared using McNemar's test.
In white-collar workers, SB time on weekdays was significantly longer than that on weekends (598 vs 479min/day, P<.001). In blue-collar workers, there was no significant difference in SB time between weekdays and weekends (462 vs 485min/day, P=.43). The proportion of workers who achieved the recommended SB levels (≤8h) was only 4.8% for white-collar workers on weekdays and 54.8% on weekends (P=.04), while that of blue-collar workers was 45.2% and 58.1% respectively (P>.99).
White-collar workers were exposed to significantly longer SB time on weekdays than on weekends, which was not the case in blue-collar workers. It may be rather challenging for white-collar workers to limit their SB time to the level recommended by the latest guidelines for better health, especially on weekdays.
White-collar workers were exposed to significantly longer SB time on weekdays than on weekends, which was not the case in blue-collar workers. It may be rather challenging for white-collar workers to limit their SB time to the level recommended by the latest guidelines for better health, especially on weekdays.Laparoscopic cholecystectomy remains the standard treatment for acute cholecystitis (AC) although it is always not suitable for patients who are poor candidates for surgery. Recently, endoscopic gallbladder (GB) drainage was found to be a potentially revolutionary alternative for cholecystectomy for the control of symptoms, definitive treatment, or bridging therapy until surgery is possible. Two endoscopic methods have been established using either the trans-mural or trans-papillary drainage approach. Endoscopic ultrasound-guided GB drainage (EUS-GBD; trans-mural approach) is a novel technique that allows stent placement between the GB and duodenum or stomach via fistula track, effectively enabling GB drainage. For endoscopic trans-papillary GB drainage (ETGBD; trans-papillary approach), attempts of selective cannulation to the cystic duct should be made to place the stent in the same manner as an endoscopic retrograde cholangiopancreatography. In comparison, EUS-GBD has higher clinical success and lower recurrence rates than ETGBD due to the use of larger-caliber stents, which allow for effective drainage when performed by skilled practitioners at high-volume centers. Advantages of ETGBD over EUS-GBD include more affordable costs and physiologic drainage, which preserves naive anatomy for possible future cholecystectomy. Although the field of endoscopic treatment for AC is rapidly advancing, important questions regarding which method improves clinical outcomes and safety more effectively remain unaddressed. Herein, the current status of endoscopic treatment for AC, including a technical review on clinical outcomes, adverse events, and advantages and disadvantages of each technique are reviewed, as well as other future prospects.Impaired mitochondrial fusion, due in part to decreased mitofusin 2 (Mfn2) expression, contributes to unrestricted cell proliferation and apoptosis-resistance in hyperproliferative diseases like pulmonary arterial hypertension (PAH) and non-small cell lung cancer (NSCLC). We hypothesized that Mfn2 levels are reduced due to increased proteasomal degradation of Mfn2 triggered by its phosphorylation at serine 442 (S442) and investigated the potential kinase mediators. Mfn2 expression was decreased and Mfn2 S442 phosphorylation was increased in pulmonary artery smooth muscle cells from PAH patients and in NSCLC cells. Mfn2 phosphorylation was mediated by PINK1 and protein kinase A (PKA), although only PINK1 expression was increased in these diseases. We designed a S442 phosphorylation deficient Mfn2 construct (PD-Mfn2) and a S442 constitutively phosphorylated Mfn2 construct (CP-Mfn2). The effects of these modified Mfn2 constructs on Mfn2 expression and biological function were compared with those of the wildtype Mfn2 construct (WT-Mfn2). WT-Mfn2 increased Mfn2 expression and mitochondrial fusion in both PAH and NSCLC cells resulting in increased apoptosis and decreased cell proliferation. Compared to WT-Mfn2, PD-Mfn2 caused greater Mfn2 expression, suppression of proliferation, apoptosis induction, and cell cycle arrest. Conversely, CP-Mfn2 caused only a small increase in Mfn2 expression and did not restore mitochondrial fusion, inhibit cell proliferation, or induce apoptosis. Silencing PINK1 or PKA, or proteasome blockade using MG132, increased Mfn2 expression, enhanced mitochondrial fusion and induced apoptosis. In a xenotransplantation NSCLC model, PD-Mfn2 gene therapy caused greater tumor regression than did therapy with WT-Mfn2. Mfn2 deficiency in PAH and NSCLC reflects proteasomal degradation triggered by Mfn2-S442 phosphorylation by PINK1 and/or PKA. Inhibiting Mfn2 phosphorylation has potential therapeutic benefit in PAH and lung cancer.The stretch-shortening cycle (SSC) assists in effective force attenuation upon landing and augments force generation at take-off during a drop vertical jump (DVJ). General performance outcomes such as jump height or peak measures have been used to assess SSC function in youth populations; however, these discrete metrics fail to provide insight into temporal jump-landing characteristics. This study assessed DVJ force-time profiles in 1013 middle and high-school female athletes (n = 279 prepubertal, n = 401 pubertal, and n = 333 postpubertal). Maturity status was determined using the Pubertal Maturation Observation Scale. https://www.selleckchem.com/products/im156.html Ground reaction force data were analyzed to extract a range of variables to characterize force-time profiles. SSC function was categorized as poor, moderate, or good dependent on the presence of an impact peak and spring-like behavior. No differences in jump height or ground contact time were observed between maturity groups (p > 0.05). Significant differences in absolute peak landing and take-off force were evident between all maturational statuses (p less then 0.
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