Islets of Langerhans are a pancreatic endocrine compartment consisting of insulin-producing β cells together with several other hormone-producing cells. While some insulin-producing cells or immature pancreatic cells have been generated in vitro from ES and iPS cells, islets with proper functions and a three-dimensional (3D) structure have never been successfully produced. To test whether islet...

Abstract Reactive oxygen species and oxidative stress impair β-cell function and reduce insulin secretion. It has been shown that progesterone and cilostazol possess antioxidant properties. The present study was aimed to investigate in vitro pretreatment effect of progesterone and cilostazol on insulin secretion as well as their protective effects against hydrogen peroxide-induced oxidative str...

objectives: this study investigates the effects of hydro-alcoholic extract of prangos ferulacea (l.) lindle (p.f) on rats' pancreas structure changes and diabetic treatment after streptozotocin injection. materials and methods: in this research forty male wistar rats with body weights of 100±20 gram, were randomly divided into 5 groups with 8 rats per each group. diabetes was induced in ra...

regarding to the important of pancreas in the body, this study was carried out on the histologic structure of pancreas of 6 pairs of iranian native turkeys of both sexes, age ranging from 26-30 weeks. routine histological techniques were used and stained by h&e; and masson’s trichrome, gomori’s method for reticulum, verhoeff’s, maldonado’s methods. the pancreas was covered with a thick dense co...

OBJECTIVE To evaluate the antidiabetic effect of curcumin and its potential in amelioration of pancreatic islets against damage under diabetic condition. MATERIAL AND METHOD Diabetic mice were induced by injection of STZ (60 mg/kg body weight). Male mice were divided into 3 groups: group I was normal mice, group II was diabetic mice and group III diabetic mice were treated with curcumin (200 ...

Background: Data shows vanadium protects pancreatic beta cells (BC) from diabetic animals. Whether this effect is direct or through the relief of glucose toxicity is not clear. This study evaluated the potential effect of oral vanadyl sulfate (vanadium) on glycemic status and pancreatic BC of normal and diabetic rats. Methods: Rats were divided into five groups of normal and diabetic. Diabetes ...

background: data shows vanadium protects pancreatic beta cells (bc) from diabetic animals. whether this effect is direct or through the relief of glucose toxicity is not clear. this study evaluated the potential effect of oral vanadyl sulfate (vanadium) on glycemic status and pancreatic bc of normal and diabetic rats. methods: rats were divided into five groups of normal and diabetic. diabetes ...

Background and Objective: Oxidative stress induced by proinflammatory cytokines such as IL-1β plays a major role in β-cell destruction in diabetes type 1. Salvianolic acid B (Sal B) is a polyphenolic compound with antioxidant and protective effects. Thus, objective of this study was to assess the protection exerted by Sal B on isolated rat islets exposed to IL-1β and to investigate an underlyin...

introduction: vanadium salts have been suggested as a possible therapeutic agent for the treatment of diabetes. the aim of the present study was to clarify immunohistochemical changes that occur in the pancreatic beta ([pancreatic islet beta]) cells of vanadyl sulphate (vs) treated stz induced diabetic rats. materials and methods: male wistar rats were made diabetic with injecting a single intr...