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Antidiabetic Activities Analysis by Oral Glucose Tolerance Test in Rats  

Kang, Myung-Hwa (Dept. of Food Science and Nutrition, Hoseo University)
Choi, Mi-Kyeong (Dept. of Food and Nutrition, Kongju National University)
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Abstract
In this study, we conducted an oral glucose tolerance test (OGTT) so as to compare antidiabetic activities of general potatoes, purple-flesh potatoes, and potato pigments in rats at various concentration levels. After allowing the rats to abstain from food for 12 hours, 10%/20% general potato, purple-flesh potato, and potato extract was orally administered to rats at 100 and 500 mg/kg concentrations. The blood glucose level was measured after an hour. Then, immediately, 1.5 g/kg of sucrose was administered through the abdominal cavity and the blood glucose measured after 30, 60, 120, and 180 minutes. 20% purple-flesh potato group and 10% general potato group, both 100 and 500 mg/kg, showed a significant concentration-dependent decrease in blood glucose levels after 30 minutes. The 100 mg/kg potato pigment group also showed a statistically significant decrease after 30 minutes. In conclusion, administration of 10% general potato, 20% purple-flesh potato, and potato pigment can reduce blood glucose level in an OGTT using rats.
Keywords
OGTT; Potato; Antidiabetic Activities; Rats;
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1 Baynes JW, Thorpe SR (1996): The role of oxidative stress in diabetic complications. Current Opinionin Endocrine 3:277-284.   DOI   ScienceOn
2 Wolff SP (1993): Diabetes mellitus and free radicals. Br Med Bull 49:642-652.
3 Lazze M, Pizzala R, Savio M, Stivala L, Prosperi E, Bianchi L (2003): Anthocyanins protect against DNA damage induced by tert-butyl-hydroperoxide in rat smooth muscle and hepatoma cells. Mutat Res 53:103-115.
4 Lefevre M, Howard L, Most M, Ju Z, Delany J (2004): Microarray analysis of the effects of grape anthocyanins on hepatic gene expression in mice. FASEB J 18: 851.
5 Matsui T, Ebuchi S, Kobayashi M, Fukui K, Sugita K, Terahara N, Matsumoto K (2002): Anti-hyperglycemic effect of diacylated anthocyanin derived from Ipomoea batatas cultivar Ayamurasaki can be achieved through the $\alpha$-glucosidase inhibitory action. J Agric Food Chem 50:7244-7248.   DOI   ScienceOn
6 Brown CR (2005): Antioxidants in potato. Am J Potato Res 82:163-172.   DOI   ScienceOn
7 Hyon SH, Kim DH (2001): Long-term preservation of rat pancreatic islets under physiological conditions. J Biotechnol 85:241-246.   DOI   ScienceOn
8 Ahn KJ (2010): Westernization of Korean diabetes. Korean Clinical Diabetes 91-94.
9 Kahn CR (1985): The molecular mechanism of insulin action. Annu Rev Med 36:429-451.   DOI   ScienceOn
10 Acquaviva R, Russo A, Galvano F (2003): Cyanidin and cyaniding 3-O-beta-D-glucoside as DNA cleavage protectors and antioxidants. Cell Biol Toxicol 19: 243-252.   DOI
11 Baynes JW (1991): Role of oxidative stress in development of complications in diabetes. Diabetes 40(4): 405-412.   DOI   ScienceOn
12 Reeves PG, Nielsen FH, Fahey Jr GC (1993): AIN-93 purified diets for laboratory rodents: final report of the American institute of nutrition ad hoc writing committee on the reformulation of the AIN-76A rodent diet. J Nut 123:1939-1951.
13 Park YE, Cho JH, Cho HM, Yi JY, Seo HW, Chung MG (2009): A new potato cultivar "Hongyoung", with red skin and flesh color, and high concentrations of anthocyanins. Korean J Breed Sci 41:502-506.