alexa Mitochondrial function in normal and diabetic beta-cells.
Infectious Diseases

Infectious Diseases

Journal of AIDS & Clinical Research

Author(s): Maechler P, Wollheim CB, Maechler P, Wollheim CB

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Abstract The aetiology of type 2, or non-insulin-dependent, diabetes mellitus has been characterized in only a limited number of cases. Among these, mitochondrial diabetes, a rare subform of the disease, is the consequence of pancreatic beta-cell dysfunction caused by mutations in mitochondrial DNA, which is distinct from the nuclear genome. The impact of such mutations on beta-cell function reflects the importance of mitochondria in the control of insulin secretion. The beta-cell mitochondria serve as fuel sensors, generating factors that couple nutrient metabolism to the exocytosis of insulin-containing vesicles. The latter process requires an increase in cytosolic Ca2+, which depends on ATP synthesized by the mitochondria. This organelle also generates other factors, of which glutamate has been proposed as a potential intracellular messenger. This article was published in Nature and referenced in Journal of AIDS & Clinical Research

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