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  Background: Considering some evidence on anti-diabetic potential of Allium ursinum (AU) , this study was conducted to evaluate the effect of oral administration of AU on contractile responsiveness of thoracic aorta in diabetic rats.

  Materials and Methods: In this experimental study, 40 male Wistar rats were divided into control, AU-treated control, diabetic, glibenclamide-treated, and AU-treated diabetic groups. For inducing diabetes, streptozotcin (STZ) was administered (60 mg/Kg). AU-treated group received AU mixed with standard pelleted food at a weight ratio of 1% for 2 months. Serum glucose level was measured at weeks 4 and 8. Eventually, contractile responsiveness of thoracic aortic rings to KCl and noradrenaline (NA) was evaluated .

  Results: Serum glucose level, at weeks 4 and 8, in the AU-treated diabetic group was significantly lower than that in the diabetics group (p<0.01 and p<0.005, respectively). In addition, the maximum thoracic aorta contractile responsiveness to NA in the AU-treated diabetic group was significantly less than the diabetic group (p<0.05) however, such a significant reduction was not observed for KCl.

Conclusion: Oral administration of AU for 2 months is of a moderate hypoglycemic effect and attenuates the contractile responsiveness of the vascular system in diabetic rats. Background: Considering some evidence on anti-diabetic potential of Allium ursinum (AU), this study was conducted to evaluate the effect of oral administration of AU on contractile responsiveness of thoracic aorta in diabetic rats. Materials and Methods: In this experimental study, 40 male Wistar rats were divided into control, AU-treated control, diabetic, glibenclamide-treated, and AU-treated diabetic groups. For inducing diabetes, streptozotcin (STZ) was administered (60 mg/Kg). AU-treated group received AU mixed with standard pelleted food at a weight ratio of 1% for 2 months. Serum glucose level was measured at weeks 4 and 8. Eventually, contractile responsiveness of thoracic aortic rings to KCl and noradrenaline (NA) was evaluated. Results: Serum glucose level, at weeks 4 and 8, in the AU-treated diabetic group was significantly lower than that in the diabetics group (p<0.01 and p<0.005, respectively). In addition, the maximum thoracic aorta contractile responsiveness to NA in the AU-treated diabetic group was significantly less than the diabetic group (p<0.05) however, such a significant reduction was not observed for KCl. Conclusion: Oral administration of AU for 2 months is of a moderate hypoglycemic effect and attenuates the contractile responsiveness of the vascular system in diabetic rats.

Keywords: Allium ursinum, Aorta, Contractile Response, Diabetes Mellitus

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