:: Volume 17, Issue 4 (10-2012) ::
__Armaghane Danesh__ 2012, 17(4): 289-298 Back to browse issues page
Effect Of Aqueous And Hydroalcoholic Extract Of Beberis Vulgaris On Insulin Secretion From Islets Of Langerhans Isolated From Male Mice
A Ahangarpour, M Eskandari *1, A Vaezlari, M Hashemi tabar
1- , mehdiesk@zums.ac.ir
Abstract:   (3899 Views)
Background & Aim: considering the use of Beberis vulgaris in traditional medicine as a blood sugar depressant, in this study, the effect of Beberis vulgaris extracts were investigated on the level of insulin secretion from islets isolated of langerhans in male mice. Methods: This experimental study was carried out on 90 adult male mice, NMARI strains weighing 20-25 g. Pancreatic islets from normal mice were isolated by collagenase digestion method. Then the aqueous and hydro-alcoholic extract of Beberis vulgaris at 0.05, 0.1, and 1 mg/ml concentrations and glyburide at 1 and 10 μM concentrations were applied on islets isolated in three different concentration of glucose solution (2.8, 5.6 and 16.7 mM). Insulin secretion from hand-picked islets were evaluated in the static incubation system. The level of Insulin secretion was measured by the ELISA insulin kit. Data were analyzed with variance analysis. Results: Insulin secretion was significantly increased at 16.7 mM glucose concentration in comparison with 2.8 and 5.6 mM glucose concentration (p<0.05). Incubation of pancreatic islets isolated at 2.8 and 5.6 mM glucose concentration and low concentrations of extract (0.05 and 0.1mg/ml) significantly increased the insulin secretion (p<0.05). Glyburide at 10 μM concentration was more effective than aqueous and hydro alcoholic extract of Beberis vulgaris at 16.7 mM glucose. Conclusion: The present study supported the anti-diabetic effect of Beberis vulgaris extracts in vitro with low glucose concentration and it suggests that one of the anti diabetic mechanisms of this plant is via pancreatic islets.
Keywords: Beberis Vulgaris, Langerhans, Diabetes
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Type of Study: Research | Subject: Special
Received: 2015/04/19 | Accepted: 2015/04/19 | Published: 2015/04/19

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Volume 17, Issue 4 (10-2012) Back to browse issues page