Diabetes Research

Diabetes mellitus is a metabolic condition characterized by an inability to regulate blood glucose levels. It is caused by either defects in insulin production and secretion (Type I) or defects in insulin signaling (Type II). As of 2000 at least 2.8% of the worlds population suffer from diabetes.

Diabetes Research Product Areas

Type I Diabetes

Type I diabetes, previously known as insulin-dependent or juvenile diabetes, is usually due to autoimmune attack of β-islet cells in the pancreas. It can also be idiopathic and there is increasing evidence of a viral etiology. The normal function of β-islet cells is to produce insulin in response to elevated blood glucose, which in turn promotes the conversion of glucose into glycogen polymers for storage. Destruction of β-islet cells prevents insulin production and subsequently manifests as hyperglycemia.

Genetic susceptibility genes for type I diabetes have been identified and include IDDM1, which codes for a MCH II complex that is displayed on the surface of β-islet cells. Certain polymorphisms of this gene result in the display of improper antigens on the surface of β-cells, leading to their targeting for destruction by T-cells.

Type II Diabetes

Type II diabetes, previously known as non-insulin-dependent or obesity-related diabetes, is characterized by insulin resistance and a loss of insulin sensitivity. Insulin levels may be increased (hyperinsulinemia) or decreased (hypoinsulinemia). Other factors that contribute include decreased activity of glucose transporters, increased hepatic glucose production and delayed β-cell sensitivity to hyperglycemia. The etiology of type II diabetes is unknown, but it is associated with obesity (particularly central obesity), sedentary lifestyle, high sugar diet, total body irradiation (a cancer treatment), hypertension and increasing age.

Pharmacological Interventions

First line treatment for type I diabetes is insulin replacement therapy. Type II diabetes is initially treated by attempts to maintain glycemic control with diet modifications. Pharmacological interventions, such as metformin, are used later. Diabetic complications are prevalent and uncontrolled so there is intense interest in developing pharmacological agents that allow better management of this condition. Novel antidiabetic treatments include fibroblast growth factor-21 analogs, renal sodium-glucose transporter inhibitors, free fatty acid receptor ligands, dipeptidyl peptidase IV (DPP-IV) inhibitors and more.

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Appetite Modulation

Written by S. Tucci et al

Peptides Involved in Appetite Modulation Scientific Review

Our Peptides Involved in Appetite Modulation review gives an overview of the peptides implicated in appetite regulation and energy homeostasis. View PDF today.

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Gut Hormones and the Regulation of Appetite

Written by V.J. Taylor et al

Gut Hormones Life Science Poster

Our Gut Hormones and the Regulation of Appetite poster gives an overview of the neuropeptide modulators and gut hormones that influence appetite. Request copy today.

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Insulin Pathway

Insulin Signaling Pathway

Signals through the insulin pathway are fundamental for the regulation of intracellular glucose levels. View pathway or download PDF today.

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One Day Symposium

Bio-Techne Symposium 2017

Epigenetic Regulation of Stem Cell Differentiation

March 1, 2017

Amsterdam, The Netherlands