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Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
Genetic variants in MTNR1B affecting insulin secretion
Karsten Müssig1, Harald Staiger, Fausto Machicao
1Division of Endocrinology, Diabetology, Angiology, Nephrology, and Clinical Chemistry, Department of Internal Medicine, Eberhard Karls University, Member of the German Centre for Diabetes Research (DZD), 72076 Tübingen, Germany.
The global rise in type 2 diabetes is linked to genetic factors and lifestyle. Melatonin system alterations, particularly involving melatonin receptors, may significantly increase diabetes risk by affecting pancreatic beta-cell function.
Area of Science:
- Endocrinology
- Metabolic Diseases
- Genetics
Background:
- Type 2 diabetes mellitus (T2DM) incidence has risen globally.
- Pathophysiology involves pancreatic beta-cell dysfunction and insulin resistance.
- Genetic predisposition combined with environmental factors like diet and inactivity are key risk factors.
Purpose of the Study:
- To review the contribution of melatonin system alterations to T2DM risk.
- To highlight the role of melatonin receptors in pancreatic beta-cell function.
Main Methods:
- Review of existing literature on melatonin, glucose homeostasis, and T2DM.
- Analysis of genome-wide association studies identifying T2DM risk genes.
- Focus on MTNR1B gene and its receptor's role.
Main Results:
- Genome-wide studies reveal novel T2DM risk genes, many impacting beta-cell function.
- The MTNR1B gene, encoding a melatonin receptor, is identified as a T2DM risk gene.
- Previous studies indicate melatonin system influences glucose regulation.
Conclusions:
- Alterations in the melatonin system may increase T2DM risk.
- Melatonin receptors play a crucial role in pancreatic beta-cell function and glucose homeostasis.
- Understanding the melatonin system's impact offers new insights into T2DM pathophysiology.
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