نتایج جستجو برای: nitrogen balance

تعداد نتایج: 256975  

Journal: :Clinical journal of the American Society of Nephrology : CJASN 2015
I David Weiner William E Mitch Jeff M Sands

Renal nitrogen metabolism primarily involves urea and ammonia metabolism, and is essential to normal health. Urea is the largest circulating pool of nitrogen, excluding nitrogen in circulating proteins, and its production changes in parallel to the degradation of dietary and endogenous proteins. In addition to serving as a way to excrete nitrogen, urea transport, mediated through specific urea ...

Journal: :The American journal of clinical nutrition 2011
Kevin E Yarasheski Carmen Castaneda-Sceppa Jiaxiu He Miwa Kawakubo Shalender Bhasin Ellen F Binder E Todd Schroeder Ronenn Roubenoff Stan P Azen Fred R Sattler

BACKGROUND Acute deviations in protein intake before the quantification of protein kinetics in older humans may explain the controversy over the effects of older age on muscle protein synthesis and proteolysis rates. OBJECTIVE We hypothesized that an acute decrease in protein intake from the habitual intake is associated with lower muscle protein synthesis and higher proteolysis rates, wherea...

Journal: :British Journal of Nutrition 1964

Journal: :Proceedings of the New Zealand Grassland Association 1982

Journal: :Annals of Clinical Biochemistry: International Journal of Laboratory Medicine 1990

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