Journal
NEUROSCIENCE LETTERS
Volume 411, Issue 2, Pages 98-103Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neulet.2006.10.039
Keywords
metformin; dimethylbiguanide; biguanides; Huntington's disease; huntingtin; neurodegeneration
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Funding
- NINDS NIH HHS [NS41003] Funding Source: Medline
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Huntington's disease (HD) is a hereditary neurodegenerative disease that leads to striatal degeneration and a severe movement disorder. We used a transgenic mouse model of HD (the R6/2 line with similar to 150 glutamine repeats) to test a new therapy for this disease. We treated HD mice with metformin, a widely used anti-diabetes drug, in the drinking water (0, 2 or 5 mg/ml) starting at 5 weeks of age. Metformin treatment significantly prolonged the survival time of male HD mice at the 2 mg/ml dose (20.1% increase in lifespan) without affecting fasting blood glucose levels. This dose of metformin also decreased hind limb clasping time in 11-week-old mice. The higher dose did not prolong survival, and neither dose of metformin was effective in female HD mice. Collectively, our results suggest that metformin may be worth further investigation in additional HD models. (c) 2006 Published by Elsevier Ireland Ltd.
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