Whole Body Protein Oxidation Unaffected after a Protein Restricted Diet in Healthy Young Males

Protein oxidation may play a role in the balance between anabolism and catabolism. We assessed the effect of a protein restricted diet on protein oxidation as a possible reflection of whole body protein metabolism. Sixteen healthy males (23 ± 3 years) were instructed to use a 4-day isocaloric protein restricted diet (0.25 g protein/kg body weight/day). Their habitual dietary intake was assessed by a 4-day food diary. After an overnight fast, a 30 g 13C-milk protein test drink was administered,...
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C Protein Oxidation in Breath: Is It Relevant for the Whole Body Protein Status?

C Protein Oxidation in Breath - Is it Relevant for the Whole Body Protein StatusIntroduction: The kinetics of protein oxidation, monitored in breath, and its contribution to the whole body protein status is not well established. Objectives: To analyze protein oxidation in various metabolic conditions we developed/validated a 13C-protein oxidation breath test using low enriched milk proteins. Method/Design: 30 g of naturally labeled 13C-milk proteins were consumed by young healthy volunteers. Bre...
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Insulin sensitivity

INSULIN SENSITIVITY IN CALVES DECREASES SUBSTANTIALLY DURING THE FIRST 3 MONTHS OF LIFE AND IS UNAFFECTED BY WEANING OR FRUCTO-OLIGOSACCHARIDE SUPPLEMENTATION  AJ Pantophlet, MS Gilbert, J van den Borne, WJJ Gerrits, MG Priebe, ... Journal of Dairy Science   ABSTRACT Veal calves at the age of 4 to 6 mo often experience problems with glucosehomeostasis, as indicated by postprandial hyperglycemia, hyperinsulinemia, and insulinstrategy [eg, prolonged milk replacer (MR) feeding] contri...
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Lactose in milk replacer can partly be replaced by glucose, fructose, or glycerol without affecting insulin sensitivity in veal calves

AJ Pantophlet, MS Gilbert, JJGC van den Borne, WJJ Gerrits, H Roelofsen, MG Priebe, RJ VonkAbstract Calf milk replacer (MR) contains 40 to 50% lactose. Lactose strongly fluctuates in price and alternatives are desired. Also, problems with glucose homeostasis and insulin sensitivity (ie, high incidence of hyperglycemia and hyperinsulinemia) have been described for heavy veal calves (body weight> 100 kg). Replacement of lactose by other dietary substrates can be economically attractive,...
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