Enhanced expression of chemotactic cytokines (aka chemokines) within pancreatic islets likely contributes to islet inflammation by regulating the recruitment and activation of various leukocyte populations, including macrophages, neutrophils, and T-lymphocytes. Because of the powerful actions of these chemokines, precise transcriptional control is required. In this review, we highlight what is ...

The voltage-gated potassium channels Kv2.1 and Kv2.2 are highly expressed in pancreatic islets, yet their contribution to islet hormone secretion is not fully understood. Here we investigate the role of Kv2 channels in pancreatic islets using a combination of genetic and pharmacologic approaches. Pancreatic β-cells from Kv2.1(-/-) mice possess reduced Kv current and display greater glucose-stim...

The aim of the present study was to test the possible presence and expression of islet neogenesis-associated protein (INGAP) in islet cells of normal adult hamsters. Pancreata from normal male Syrian hamsters were removed to perform the following studies. (i) Western blot analysis using the cytosolic fraction from homogenates of isolated islets, exocrine tIssue and whole pancreas, and rabbit IN...

histological and histochemical studies on the pancreas of goose (anser albifrons) were carried out using special staining and light microscope. the pancreas in goose is serous tubuloacinar gland having exocrine and endocrine part. smooth muscle fibres were absent in capsule of pancreas. acinar cells have bizonal shape. intralobular ducts, interlobular and main excretory ducts were present withi...

Creation of a bioartificial pancreas, including cell-engineered construct (CEC) formed from pancreatic islets (islets Langerhans) and biocompatible matrix mimicking the native microenvironment tissue, is one approaches to treatment type 1 diabetes mellitus (T1D). Objective: conduct preliminary in vivo studies functional efficacy intraperitoneal injection endocrine suspension rat an experimental...

Background and objectives: Melissa officinalis (MO) has shown antioxidant and anti-inflammatory properties and is traditionally believed to have anti-hyperglycemic effects. This study aims to evaluate the protective effects of MO on streptozotocin (STZ) induced pancreatic damage and thereupon diabetes in rats. Methods: STZ (60 mg/kg) was injected intraperitoneally to the rats in order to induc...

The present study aimed at establishing a new cryopreservation method for mouse pancreatic islets by vitrification using hollow fibers as a container. A unique feature of the hollow fiber vitrification (HFV) method is that this method achieves stable vitrification using a minimum volume of cryoprotectant (CPA) solution, thereby ensuring high viability of the islets. The cytotoxicity, optimum co...

Carlsson, Per-Ola, Astrid Nordin, and Fredrik Palm. pH is decreased in transplanted rat pancreatic islets. Am J Physiol Endocrinol Metab 284: E499–E504, 2003. First published November 5, 2002; 10.1152/ajpendo.00156.2002.—Recent studies of transplanted pancreatic islets have indicated incomplete revascularization. We investigated the pH, in relation to oxygen tension (PO2), in endogenous islets ...

Carlsson, Per-Ola, Astrid Nordin, and Fredrik Palm. pH is decreased in transplanted rat pancreatic islets. Am J Physiol Endocrinol Metab 284: E499–E504, 2003. First published November 5, 2002; 10.1152/ajpendo.00156.2002.—Recent studies of transplanted pancreatic islets have indicated incomplete revascularization. We investigated the pH, in relation to oxygen tension (PO2), in endogenous islets ...