Whole-body protein turnover in malnourished patients with child class B and C cirrhosis on diets low to high in protein energy

Nutrition
J B DichiR C Burini

Abstract

The purpose of this study was to determine the rate of whole-body protein turnover in moderately and severely alcoholic, malnourished, cirrhotic patients fed with different amounts of protein or energy. Six male patients (Child classes B and C) and four age- and sex-matched healthy control subjects were studied for 18 d in fasting and feeding states; a single oral dose of [(15)N]glycine was used as a tracer and urinary ammonia was the end product. The kinetic study showed that patients had higher protein catabolism while fasting (patients: 3.14 +/- 1.2 g of lean body mass/9 h; controls: 1.8 +/- 0.3 g of lean body mass/9 h; P < 0.02). Although not statistically significant, protein catabolism (grams of lean body mass/9 h) was lower with the hyperproteic/hyperenergetic diet when compared with fasting. Nitrogen retention was consistent with the lower protein-catabolism rate; a statistically significant increase in nitrogen balance was observed when patients were fed with the hyperproteic/hyperenergetic diet compared with fasting (4.3 +/- 3.2 g of nitrogen/d and -2.2 +/- 1.9 g of nitrogen/d, respectively; P < 0.01). These data indicate that Child class B and C cirrhotic patients are hypercatabolic and that long-term nutritional int...Continue Reading

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Citations

Nov 9, 2002·Alimentary Pharmacology & Therapeutics·J H HenriksenF Bendtsen
Mar 11, 2011·Isotopes in Environmental and Health Studies·Klaus D WutzkeGerrit Bruns
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