Effect of starvation on the local and systemic metabolic effects of the lambda-carrageenan wound.
The contribution that starvation makes to the altered glucose metabolism in injured rats was evaluated. Food intake, weight change, nitrogen balance, and muscle tissue concentrations of glycogen, glucose, and the glycolytic intermediates were determined in these animals. This study concluded that the wounded and pair fed control groups presented adequately represent the metabolic states associated with injury and semistarvation in experimental animals, decreased food intake plays a major role in the weight loss and nitrogen balance in this wound model, wounding overrides two of the controlling steps of glycolysis (hexokinase and phosphofructokinase) in skeletal muscle during starvation, the finding of similar pyruvate dehydrogenase activity after wounding and starvation as demonstrated by tissue lactate to pyruvate ratios and lactate and pyruvate concentrations suggest that lactate production in wounded tissue may not be simply a manifestation of an altered redox state secondary to anaerobic conditions.
D000818:Animals; D001786:Blood Glucose / Q000378:metabolism*; D001835:Body Weight; D002351:Carrageenan; D006019:Glycolysis; D007773:Lactates / Q000097:blood; D008297:Male; D008954:Models, Biological; D009132:Muscles / Q000378:metabolism; D009584:Nitrogen / Q000378:metabolism*; D051381:Rats; D011919:Rats, Inbred Strains; D012709:Serum Albumin / Q000378:metabolism; D013217:Starvation / Q000150:complications / Q000378:metabolism*; D014947:Wounds and Injuries / Q000150:complications / Q000378:metabolism*
D001786:Blood Glucose; D007773:Lactates; D012709:Serum Albumin; D002351:Carrageenan; D009584:Nitrogen