Narcolepsy and low CSF orexin (hypocretin) concentration after a diencephalic stroke NEUROLOGY Scammell, T. E., Nishino, S., Mignot, E., SAPER, C. B. 2001; 56 (12): 1751-1753

Abstract

Idiopathic narcolepsy usually results from a loss of the hypothalamic neuropeptide orexin (hypocretin), but the cause of secondary narcolepsy resulting from focal brain lesions is unknown. The authors describe a young man who developed narcolepsy after a large hypothalamic stroke. His lesion included much of the hypothalamic region in which orexin is produced, and his CSF concentration of orexin was low. The authors hypothesize that a loss of orexin neurons or their relevant targets may be the specific neuropathology causing this and many other cases of secondary narcolepsy.

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View details for PubMedID 11425947