Loading and Skeletal Development and Maintenance
نویسندگان
چکیده
منابع مشابه
Loading and Skeletal Development and Maintenance
Mechanical loading is a major regulator of bone mass and geometry. The osteocytes network is considered the main sensor of loads, through the shear stress generated by strain induced fluid flow in the lacuno-canalicular system. Intracellular transduction implies several kinases and phosphorylation of the estrogen receptor. Several extra-cellular mediators, among which NO and prostaglandins are ...
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THE TRANSFORMING GROWTH FACTOR-β (TGF-β) FAMILY is critically involved in the development and maintenance of skeletal tissues. In searches for factors with potent cartilage and bone inductive activities, TGF-β was isolated as cartilage-inducing factor (Seyedin et al. 1987), whereas bone morphogenetic proteins (BMPs) were isolated as factors able to induce cartilage and bone formation (Urist 196...
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این پژوهش با هدف "بررسی وضعیت موجود آموزش عالی مجازی در ایران و راههای توسعه و ارتقای آن " و با روش توصیفی-تحلیلی و پیمایشی صورت پذیرفته است. بررسی اسنادو مدارک موجود در زمینه آموزش مجازی نشان داد تعداد دانشجویان و مقاطع تحصیلی و رشته محل های دوره های الکترونیکی چندان مطلوب نبوده و از نظر کیفی نیز وضعیت شاخص خدمات آموزشی اساتید و وضعیت شبکه اینترنت در محیط آموزش مجازی نامطلوب است.
Creatine supplementation: a comparison of loading and maintenance protocols on creatine uptake by human skeletal muscle.
The purposes of this investigation were first to determine the impact of 3 different creatine (Cr) loading procedures on skeletal muscle total Cr (TCr) accumulation and, second, to evaluate the effectiveness of 2 maintenance regimes on retaining intramuscular TCr stores, in the 6 weeks following a 5-day Cr loading program (20 g x day(-1). Eighteen physically active male subjects were divided in...
متن کاملSkeletal loading in animals.
A number of in vivo skeletal loading models have been developed to test specific hypotheses addressing the key mechanical and biochemical signals involved in bone's adaptive response to loading. Exercise protocols, osteotomy procedures, loading of surgically implanted pins, and force application through the soft tissues are common approaches to alter the mechanical environment of a bone. Althou...
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ژورنال
عنوان ژورنال: Journal of Osteoporosis
سال: 2011
ISSN: 2042-0064
DOI: 10.4061/2011/786752