Prioritization of skeletal muscle growth for emergence from hibernation
نویسندگان
چکیده
منابع مشابه
Prioritization of skeletal muscle growth for emergence from hibernation.
Mammalian hibernators provide an extreme example of naturally occurring challenges to muscle homeostasis. The annual hibernation cycle is characterized by shifts between summer euthermy with tissue anabolism and accumulation of body fat reserves, and winter heterothermy with fasting and tissue catabolism. The circannual patterns of skeletal muscle remodelling must accommodate extended inactivit...
متن کاملSkeletal muscle mass and composition during mammalian hibernation.
Hibernation is characterized by prolonged periods of inactivity with concomitantly low nutrient intake, conditions that would typically result in muscle atrophy combined with a loss of oxidative fibers. Yet, hibernators consistently emerge from winter with very little atrophy, frequently accompanied by a slight shift in fiber ratios to more oxidative fiber types. Preservation of muscle morpholo...
متن کاملRole of resistance training with the approach of blood flow restriction in skeletal muscle cell growth
Background: The aim of this study was to investigate the response of ERK1/2 protein and muscular morphological adaptations to a period of resistance training with local blood flow restriction. Materials and methods: Twenty healthy male Wistar rats without clinically evident disease (5 weeks old, 120±7 g weight) were divided into four equal groups: control, control with limited blood flow...
متن کاملSocial Effects on Emergence from Hibernation in Yellow-bellied Marmots
The date that yellow-bellied marmots (Marmota flaviventris) emerge at a site in Colorado has been used as evidence that climate is affecting hibernating species. Over 6 springs, and at 16 marmot groups, the date of 1st emergence of males, females, and the group as a whole was recorded. Emergence date of males was a function of the number of males in a group (a metric of reproductive competition...
متن کاملGrowth Factors for Skeletal Muscle Tissue Engineering.
Tissue-engineered skeletal muscle holds promise as a source of graft tissue for repair of volumetric muscle loss and as a model system for pharmaceutical testing. To reach this potential, engineered tissues must advance past the neonatal phenotype that characterizes the current state of the art. In this review, we describe native skeletal muscle development and identify important growth factors...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2014
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.109512