Altered lipid concentrations of liver, heart and plasma but not brain in HIV-1 transgenic rats

作者：Taha Ameer Y^*; Basselin Mireille; Ramadan Epolia; Modi Hiren R; Rapoport Stanley I; Cheon Yewon

来源：Prostaglandins, Leukotrienes and Essential Fatty Acids, 2012, 87(4-5): 91-101.

DOI：10.1016/j.plefa.2012.07.006

• HIV-1 transgenic rat
• Fatty acid
• Brain
• Liver
• Heart
• Plasma
• Arachidonic
• Docosahexaenoic
• Polyunsaturated fatty acids (PUFA)
• Concentration
• Composition
• Metabolism Virus

Disturbed lipid metabolism has been reported in antiretroviral-naive HIV-1-infected patients suggesting a direct effect of the virus on lipid metabolism. To test that the HIV-1 virus alone could alter lipid concentrations, we measured these concentrations in an HIV- 1 transgenic (Tg) rat model of human HIV-1 infection, which demonstrates peripheral and central pathology by 7-9 months of age. Concentrations were measured in high-energy microwaved heart, brain and liver from 7-9 month-old HIV-1 Tg and wildtype rats, and in plasma from non-microwaved rats. Plasma triglycerides and liver cholesteryl ester and total cholesterol concentrations were significantly higher in HIV-1 Tg rats than controls. Heart and plasma fatty acid concentrations reflected concentration differences in liver, which showed higher n-3 and n-6 polyunsaturated fatty acid (PUFA) concentrations in multiple lipid compartments. Fatty acid concentrations were increased or decreased in heart and liver phospholipid subfractions. Brain fatty acid concentrations differed significantly between the groups for minor fatty acids such as linoleic acid and n-3 docosapentaenoic acid. The profound changes in heart, plasma and liver lipid concentrations suggest a direct effect of chronic exposure to the HIV-1 virus on peripheral lipid (including PUFA) metabolism. Published by Elsevier Ltd.

• 出版日期2012-11