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Study shows hibernating bears conserve more muscle strength than humans on bed rest do
04-24-2007 · EurekAlert!A new study from the May/June 2007 issue of Physiological and Biochemical Zoology quantifiably measures the loss of strength and endurance in black bears during long periods of hibernation. T.D. Lohuis (Alaska Department of Fish and Game) and his coauthors find that black bears in hibernation lose about one-half as much skeletal muscle strength as do humans confined to bed rest for similar periods of time.
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Keywords: study, shows, hibernating, bears, conserve, muscle, strength, humans, bed, rest, show, bear, human
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Smooth muscle cells (SMCs) are a crucial component of many parts of the body, including blood vessels. A new study shows that fully functional SMCs can be generated from multipotent adult progenitor cells (MAPCs) from rat, mouse, pig and human bone marrow using only the soluble factor TGF-beta or TGF-beta and PDGFB. SMCs generated this way could provide a source of SMCs for engineering tissues, for example new blood vessels for use in bypass surgery.
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- Common virus may contribute to obesity in some people, new study shows
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- Study reveals how the brain generates the human tendency for optimism
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Findings from one of the largest HIV/AIDS therapy studies show that a specific strategy of interrupting antiretroviral therapy more than doubles the risk of AIDS or death from any cause. Researchers affiliated with the Mailman School of Public Health led a large multi-center international study, known as Strategies for Management of Anti-Retroviral Therapies, or SMART, comparing two treatment strategies for people with human immunodeficiency virus. Findings demonstrate the value of continuous antiretroviral therapy.
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