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Diabetes in Friedreich Ataxia

Cnop, Miriam ; Mulder, Hindrik LU orcid and Igoillo-Esteve, Mariana (2013) In Journal of Neurochemistry 126. p.94-102
Abstract
Diabetes is a common metabolic disorder in patients with Friedreich ataxia. In this Supplement article, we review the clinical data on diabetes in Friedreich ataxia, and the experimental data from rodent and in vitro models of the disease. Increased body adiposity and insulin resistance are frequently present in Friedreich ataxia, but pancreatic cell dysfunction and death are a conditio sine qua non for the loss of glucose tolerance and development of diabetes. The loss of frataxin function in mitochondria accounts for these pathogenic processes in Friedreich ataxia. Mitochondria are essential for the sensing of nutrients by the cell and for the generation of signals that trigger and amplify insulin secretion, known as stimulus-secretion... (More)
Diabetes is a common metabolic disorder in patients with Friedreich ataxia. In this Supplement article, we review the clinical data on diabetes in Friedreich ataxia, and the experimental data from rodent and in vitro models of the disease. Increased body adiposity and insulin resistance are frequently present in Friedreich ataxia, but pancreatic cell dysfunction and death are a conditio sine qua non for the loss of glucose tolerance and development of diabetes. The loss of frataxin function in mitochondria accounts for these pathogenic processes in Friedreich ataxia. Mitochondria are essential for the sensing of nutrients by the cell and for the generation of signals that trigger and amplify insulin secretion, known as stimulus-secretion coupling. Moreover, in the intrinsic pathway of apoptosis, pro-apoptotic signals converge on mitochondria, resulting in mitochondrial Bax translocation, membrane permeabilization, cytochrome c release and caspase cleavage. How and at which level frataxin deficiency impacts on these processes in cells is only partially understood. A better understanding of the molecular mechanisms mediating cell demise in Friedreich ataxia will pave the way for new therapeutic approaches. (Less)
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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
apoptosis, diabetes, Friedreich ataxia, insulin, insulin resistance, pancreatic beta cell
in
Journal of Neurochemistry
volume
126
pages
94 - 102
publisher
Wiley-Blackwell
external identifiers
  • wos:000321892100010
  • scopus:84880361914
  • pmid:23859345
ISSN
1471-4159
DOI
10.1111/jnc.12216
language
English
LU publication?
yes
id
9e90618d-6eb9-4cf9-8e86-7df412717fa1 (old id 3973326)
date added to LUP
2016-04-01 14:43:11
date last changed
2022-03-29 22:25:15
@article{9e90618d-6eb9-4cf9-8e86-7df412717fa1,
  abstract     = {{Diabetes is a common metabolic disorder in patients with Friedreich ataxia. In this Supplement article, we review the clinical data on diabetes in Friedreich ataxia, and the experimental data from rodent and in vitro models of the disease. Increased body adiposity and insulin resistance are frequently present in Friedreich ataxia, but pancreatic cell dysfunction and death are a conditio sine qua non for the loss of glucose tolerance and development of diabetes. The loss of frataxin function in mitochondria accounts for these pathogenic processes in Friedreich ataxia. Mitochondria are essential for the sensing of nutrients by the cell and for the generation of signals that trigger and amplify insulin secretion, known as stimulus-secretion coupling. Moreover, in the intrinsic pathway of apoptosis, pro-apoptotic signals converge on mitochondria, resulting in mitochondrial Bax translocation, membrane permeabilization, cytochrome c release and caspase cleavage. How and at which level frataxin deficiency impacts on these processes in cells is only partially understood. A better understanding of the molecular mechanisms mediating cell demise in Friedreich ataxia will pave the way for new therapeutic approaches.}},
  author       = {{Cnop, Miriam and Mulder, Hindrik and Igoillo-Esteve, Mariana}},
  issn         = {{1471-4159}},
  keywords     = {{apoptosis; diabetes; Friedreich ataxia; insulin; insulin resistance; pancreatic beta cell}},
  language     = {{eng}},
  pages        = {{94--102}},
  publisher    = {{Wiley-Blackwell}},
  series       = {{Journal of Neurochemistry}},
  title        = {{Diabetes in Friedreich Ataxia}},
  url          = {{http://dx.doi.org/10.1111/jnc.12216}},
  doi          = {{10.1111/jnc.12216}},
  volume       = {{126}},
  year         = {{2013}},
}