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Expression of Mutan...
Expression of Mutant Huntingtin in Leptin Receptor-Expressing Neurons Does Not Control the Metabolic and Psychiatric Phenotype of the BACHD Mouse.
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- Hult Lundh, Sofia (författare)
- Lund University,Lunds universitet,Translationell neuroendokrinologi,Forskargrupper vid Lunds universitet,Translational Neuroendocrinology,Lund University Research Groups
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- Soylu, Rana (författare)
- Lund University,Lunds universitet,Translationell neuroendokrinologi,Forskargrupper vid Lunds universitet,Translational Neuroendocrinology,Lund University Research Groups
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- Petersén, Åsa (författare)
- Lund University,Lunds universitet,Translationell neuroendokrinologi,Forskargrupper vid Lunds universitet,Translational Neuroendocrinology,Lund University Research Groups
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(creator_code:org_t)
- 2012-12-10
- 2012
- Engelska.
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Ingår i: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 7:12
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Abstract
Ämnesord
Stäng
- Metabolic and psychiatric disturbances occur early on in the clinical manifestation of Huntington's disease (HD), a neurodegenerative disorder caused by an expanded CAG repeat in the huntingtin (HTT) gene. Hypothalamus has emerged as an important site of pathology and alterations in this area and its neuroendocrine circuits may play a role in causing early non-motor symptoms and signs in HD. Leptin is a hormone that controls energy homeostasis by signaling through leptin receptors in the hypothalamus. Disturbed leptin action is implicated in both obesity and depression and altered circulating levels of leptin have been reported in both clinical HD and rodent models of the disease. Pathological leptin signaling may therefore be involved in causing the metabolic and psychiatric disturbances of HD. Here we tested the hypothesis that expression of mutant HTT in leptin receptor carrying neurons plays a role in the development of the non-motor phenotype in the BACHD mouse model. Our results show that inactivation of mutant HTT in leptin receptor-expressing neurons in the BACHD mouse using cross-breeding based on a cre-loxP system did not have an effect on the metabolic phenotype or anxiety-like behavior. The data suggest that mutant HTT disrupts critical hypothalamic pathways by other mechanisms than interfering with intracellular leptin signaling.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
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- ref (ämneskategori)
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