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© Research
Publication : Neurobiology of disease

Early changes in the hypothalamic region in prodromal Huntington disease revealed by MRI analysis

Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Neurobiology of disease - 02 Aug 2010

Soneson C, Fontes M, Zhou Y, Denisov V, Paulsen JS, Kirik D, Petersén A,

Link to Pubmed [PMID] – 20682340

Neurobiol. Dis. 2010 Dec;40(3):531-43

Huntington disease (HD) is a fatal neurodegenerative disorder caused by an expanded CAG repeat. Its length can be used to estimate the time of clinical diagnosis, which is defined by overt motor symptoms. Non-motor symptoms begin before motor onset, and involve changes in hypothalamus-regulated functions such as sleep, emotion and metabolism. Therefore we hypothesized that hypothalamic changes occur already prior to the clinical diagnosis. We performed voxel-based morphometry and logistic regression analyses of cross-sectional MR images from 220 HD gene carriers and 75 controls in the Predict-HD study. We show that changes in the hypothalamic region are detectable before clinical diagnosis and that its grey matter contents alone are sufficient to distinguish HD gene carriers from control cases. In conclusion, our study shows, for the first time, that alterations in grey matter contents in the hypothalamic region occur at least a decade before clinical diagnosis in HD using MRI.

http://www.ncbi.nlm.nih.gov/pubmed/20682340