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Environ Toxicol Pharmacol ; 8(4): 261-266, 2000 Jun 01.
Article in English | MEDLINE | ID: mdl-10996546

ABSTRACT

We have studied the effects of dipyridamole treatment on chick plasma and lipoprotein composition in postprandial and fasting (12 h) conditions. Plasma cholesterol levels were higher in fasted than in fed chicks, whereas triglycerides declined during starvation. Dipyridamole treatment reduced plasma cholesterol content, mainly of the free cholesterol fraction. In postprandial conditions, total cholesterol content of high and low density lipoproteins decreased in a similar proportion to that observed in plasma. However, cholesterol and other chemical constituents of intermediate and very low density lipoproteins were more drastically reduced by dipyridamole than in plasma. Total amounts of these lipoprotein fractions were also reduced about 50%. The effects of dipyridamole in fasted animals were not significant. To our knowledge, this is one of the first reports about the response of lipoprotein cholesterol to dipyridamole treatment. A strong decrease was also found in the arachidonic acid content of plasma phospholipids and cholesterol esters fractions.

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