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J Biochem Mol Toxicol. 2008 Jul-Aug;22(4):220-4. doi: 10.1002/jbt.20218.

Antihyperlipidemic effect of D-pinitol on streptozotocin-induced diabetic Wistar rats.

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1
Department of Biochemistry and Biotechnology, Annamalai University, Annamalai Nagar 608 002, Tamil Nadu, India.

Abstract

D-pinitol (3-O-methyl-chiroinositol), an active principle of the traditional antidiabetic plant, Bougainvillea spectabilis, is claimed to exert insulin-like effects. This study was undertaken to evaluate the effect of D-pinitol on lipids and lipoproteins in streptozotocin (STZ)-induced diabetic Wistar rats. Rats were made type II diabetic by single intraperitoneal injection of STZ at a dose of 40 mg/kg body weight. STZ-induced diabetic rats showed significant (p < 0.05) increase in the levels of blood glucose and total cholesterol, triglycerides, free fatty acids, and phospholipids in serum, liver, kidney, heart, and brain. The levels of low-density lipoprotein (LDL) and very low-density lipoprotein (VLDL) cholesterol were significantly increased, and the level of high-density lipoprotein (HDL) cholesterol was significantly decreased in diabetic rats Oral administration of D-pinitol to STZ-induced diabetic rats showed significant (p < 0.05) decrease in the levels of blood glucose and total cholesterol, triglycerides, free fatty acids, and phospholipids in serum, liver, kidney, heart, and brain. The D-pinitol also lowered significantly (p < 0.05) LDL and VLDL cholesterol levels and increased significantly (p < 0.05) HDL cholesterol levels in the serum of diabetic rats. Thus, the present study clearly showed the antihyperlipidemic effect of D-pinitol in STZ-induced type II diabetic rats.

PMID:
18752266
DOI:
10.1002/jbt.20218
[Indexed for MEDLINE]

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