نتایج جستجو برای: skeletal muscle mass
تعداد نتایج: 820087 فیلتر نتایج به سال:
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is closely correlated with abnormal accumulation of visceral fat, but the role of skeletal muscle remains unclear. The aim of this study was to elucidate the role of skeletal muscle in development of NAFLD. METHODS Among 11,116 subjects (6,242 males), we examined the effects of skeletal muscle mass and visceral fat area (VFA, by bioelectric ...
[Purpose] This study aimed 1) to assess whether a prediction model for whole body skeletal muscle mass that is based on a sedentary population is applicable to young male athletes, and 2) to develop a new skeletal muscle mass prediction model for young male athletes. [Subjects and Methods] The skeletal muscle mass of 61 male athletes was measured using magnetic resonance imaging (MRI) and estim...
Maintaining skeletal muscle mass is essential for general health and prevention of disease progression in various neuromuscular conditions. Currently, no treatments are available to prevent progressive loss of muscle mass in any of these conditions. Hibernating mammals are protected from muscle atrophy despite prolonged periods of immobilization and starvation. Here, we describe a mechanism und...
BACKGROUND Control of skeletal muscle mass and force production is a complex physiological process involving numerous regulatory systems. Agents that increase skeletal muscle cAMP levels have been shown to modulate skeletal muscle mass and force production. The dopamine 1 receptor and its closely related homolog, the dopamine 5 receptor, are G-protein coupled receptors that are expressed in ske...
Two receptors activated by the corticotropin-releasing factor (CRF) family of peptides have been identified, the CRF 1 receptor (CRF1R) and the CRF 2 receptor (CRF2R). Of these, the CRF2R is expressed in skeletal muscle. To understand the role of the CRF2R in skeletal muscle, we utilized CRFR knockout mice and CRF2R-selective agonists to modulate nerve damage and corticosteroid- and disuse-indu...
Lower skeletal muscle mass in male transgenic mice with muscle-specific overexpression of myostatin.
Mutations in the myostatin gene are associated with hypermuscularity, suggesting that myostatin inhibits skeletal muscle growth. We postulated that increased tissue-specific expression of myostatin protein in skeletal muscle would induce muscle loss. To investigate this hypothesis, we generated transgenic mice that overexpress myostatin protein selectively in the skeletal muscle, with or withou...
FOXO1, a member of the FOXO forkhead type transcription factors, is markedly up-regulated in skeletal muscle in energy-deprived states such as fasting and severe diabetes, but its functions in skeletal muscle have remained poorly understood. In this study, we created transgenic mice specifically overexpressing FOXO1 in skeletal muscle. These mice weighed less than the wild-type control mice, ha...
There has been renewed interest in examining the relationship between specific components of energy expenditure and the overall influence on energy intake (EI). The purpose of this cross-sectional analysis was to determine the strongest metabolic and anthropometric predictors of EI. It was hypothesized that resting metabolic rate (RMR) and skeletal muscle mass would be the strongest predictors ...
The common sites of distant metastatic spread head and neck malignant tumor are lungs, liver, bones. Skeletal muscles metastases extremely rare. We present a case 61-year-old man who was previously treated with radical chemo radiotherapy for hypopharyngeal squamous cell carcinoma, stage T4bN2cM0. During surveillance follow up 21 months post treatment, he developed right proximal arm mass. There...
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