The Protective Effect of Aloe Vera on Histological Structure of Endocrine Portion of Pancreas Gland in the Diabetic Rat
Since aloe vera plant has many medical benefits, the present study aimed to investigate the protective effects of Aloe vera gel on the pancreatic islets and beta cells.
This experimental study consisted of 50 mature male rats aged 2-3 months and weighed 200-250 g, who were randomly divided into five groups (n=10). Group I (control) did not receive any treatments, and group II were diabetized via Streptozotocin (IP) in 65 mg/kg, whose blood sample was taken after one week. Rats with blood glucose more than 250 mg/dL were considered as diabetic. Group III diabetic rats received the Aloe vera gel daily with dosage of 400 mg/kg, and group IV diabetic rats received insulin in 10 units/rat. Group V involved healthy rats which received only Aloe vera gel. After the last Aloe vera gel administration, blood glucose and body weight of all groups were measured on 15th and 30th days. Animals were euthanized with ether. Then tissues samples were collected from pancreas gland and fixed in 10% neutral buffered formalin solution. The 5-6 µ sections were made by paraffin embedding method and stained using haematoxylin-eosin (H&E) and Aldehyde fuchsin stains. Ultimately, the histomorphometrical parameters were evaluated.
The mean number and size of pancreatic islets and beta cells of Langerhans islets decreased significantly in the diabetic group compared to the control group. The number of beta cells and diameter of langerhans islets increased significantly in the rats treated by Aloe vera gel in comparison to diabetic group at the end of 15th and 30th days.
Applying Aloe vera gel seems to improve the renewal and restoration of langerhans islets and beta cells of pancreas gland in the diabetic rat.
Journal of Shaeed Sdoughi University of Medical Sciences Yazd, Volume:23 Issue:10, 2016
969 - 979  
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