Modification of triacylglycerides and apoprotein B in rats fed diets containing whole milk, skim milk and milk proteins

Article Abstract:

The role of whole milk's protein fraction in triglyceride metabolism was studied in rats using milk-based diets and milk protein fraction. Five groups of rats were fed five different milk preparations. Blood and tissue components were then extracted and analyzed for lipid components. Rats fed with whole milk showed less plasma lipoproteins, liver cholesterol levels and along with whey protein isolate, lower very low density lipoprotein. Low and high density lipoproteins are however increased. Thus whole milk affects plasma and hepatic lipids in rats and further studies on the complex mechanisms was recommended.

Food and nutrition, Blood lipids, Rats, Milk proteins

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Postprandial lipid response following a high fat meal in rats adapted to dietary fiber

Article Abstract:

The influence of rats' adaptation to three different fiber sources on serum lipoprotein and apolipoprotein levels after being fed a high fat meal was studied. The influence of dietary fiber adaptation on intestinal distribution of mRNA abundance for apolipoprotein B and A-IV, which participate in intestinal lipid absorption, was also investigated. Results indicate that chronic fiber intake is less effective in changing acute plasma triglyceride response to a high-fat meal than addition of a fiber supplement to the meal.

Apolipoproteins, Triglycerides, Lipemia

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Replacement of digestible wheat starch by resistant cornstarch alters splanchnic metabolism in rats

Article Abstract:

It is hypothesized that fuel storage and breakdown mechanisms may differ with diet. The effect of a highly-digestible wheat starch (DS) diet or an amylase-resistant cornstarch (RS) diet on splanchnic metabolism in rats was investigated. Major substrates absorbed were glucose for the DS diet and glucose and volatile fatty acids (VFA) for the RS diet. The substitution of VFA for a large part of absorbed glucose seems to extend the time for fuel absorption and stabilizes glucose metabolism during the light: dark cycle.

Lipid metabolism, Glucose metabolism, Fatty acid metabolism

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