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http://dx.doi.org/10.3746/jkfn.2004.33.8.1273

The Change of Tissue Lipid Levels and Fatty Acid Compositions by Alloxan-induced Diabetes in Rats  

Lee, Joon-Ho (Dept. of Consumers' Life Information, Chungnam National University)
Jun, In-Nyo (Dept. of Consumers' Life Information, Chungnam National University)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.33, no.8, 2004 , pp. 1273-1278 More about this Journal
Abstract
The change of tissue lipid levels and fatty acid compositions in alloxan-induced diabetes was studied in rats (SD, male) in order to examine the pathway of diabetic complications. Rats were injected with alloxan 20 mg/kg BW or 40 mg/kg BW to induce diabetes. In rats injected with alloxan (40 mg/kg BW), the body weight was significantly decreased, food intake and liver weight per 100 g (BW) were significantly increased, compared with other groups. The blood glucose levels were apparently elevated as about 2 times in rats injected with alloxan (40 mg/kg BW) than the other groups. The concentrations of serum total cholesterol, triglyceride and HDL-cholesterol were not significantly different among the groups. However, the levels of serum triglyceride tended to increase according to amount of alloxan injected. Liver cholesterol levels were significantly decreased in rats injected with alloxan (40 mg/kg BW) compared with other groups, but triglyceride levels of those were not significantly different among groups. Concerning the fatty acid compositions of serum, liver, kidney, spleen phosphatidylcholine, the percentage of linoleic acid in rats injected with alloxan (40 mg/kg BW) was significantly increased, while that of arachidonic acid was significantly decreased compared with the other groups. Therefore, the ratios of arachidonic/linoleic acid in tissue phosphatidylcholine tended to be low in rats injected with alloxan (40 mg/kg BW) and especially significant low levels were found in serum and spleen. Thus, it was suggested that insulin deficiency can affect on fatty acid biosynthesis and induce diabetic complications.
Keywords
diabetes; alloxan; fatty acid composition;
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