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http://dx.doi.org/10.3746/jkfn.2002.31.6.1107

Effects of Pear Phenolic Compound on the STZ-treated Mice for Induction of Diabetes  

김정상 (동신대학교 한의과대학)
나창수 (동신대학교 한의과대학)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.31, no.6, 2002 , pp. 1107-1111 More about this Journal
Abstract
This study has been carried out to investigate the effects of the Phenolic compound on the hyperglycemic mice induced with strentozotocin (STZ). The effects of the phenolic compound were assayed by the changes of the blood glucose creatinine and blood urea nitrogen (BUN ) levels, and insulin-immunohistochemical staining and electron microscopical observation for $\beta$ -cells of the Langerhan's islet, under the same experimental conditions. For this purpose male mice were fed with phenolic compound (PA group, IS mg/kg/day; PB group, 90 mg/kg/day)in their diet while the control group received the same commercial diet, for 6 weeks. The blood glucose contents was examined by tail vein blood once a week for 6 weeks. Samples of the pancreas removed after that period were processed for the immunohistochemical identification of $\beta$ -cells as well as for measuring ultrastructural changes of $\beta$-cells. The levels of serum glucose were decreased significantly (p<0.05) on the PB group compared with the control and PA group. The blood BUN and creatinine levels are slightly decreased in the phenolic compound feeding groups compared with control group. The $\beta$-cells on Langerhnan's islet were destructed by administration of STZ, so that a few of insulin-positive cells were observed in the control group. A lot of insulin-positive cells were observed in the PB group compared with the control group. According to the electron microscopical observation $\beta$-cells are recovered from the damage in the PA group. The $\beta$-cell contained a lot of electron dense and pale granules compared with control group. These results suggest that administration of the pear phenolic compound to the mice helped recovery from the damage induced by STZ.
Keywords
pear phenolic compound; diabetes; insulin-immunostain; Langerhans islet;
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