2009
DOI: 10.1093/sleep/32.8.993
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Localized Loss of Hypocretin (Orexin) Cells in Narcolepsy Without Cataplexy

Abstract: Narcolepsy without cataplexy can be caused by a partial loss of hypocretin cells.

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Cited by 223 publications
(122 citation statements)
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“…However, NwoC is more variable with regards to Hcrt. Post-mortem studies have shown that NwoC is accompanied by only a partial loss of Hcrt neurons (Thannickal et al 2009). We sought to determine whether Lhx9 knockout mice also have abnormal sleep physiology.…”
Section: Loss Of Lhx9 Leads To a Profound Perturbation Of Sleep Behaviormentioning
confidence: 99%
“…However, NwoC is more variable with regards to Hcrt. Post-mortem studies have shown that NwoC is accompanied by only a partial loss of Hcrt neurons (Thannickal et al 2009). We sought to determine whether Lhx9 knockout mice also have abnormal sleep physiology.…”
Section: Loss Of Lhx9 Leads To a Profound Perturbation Of Sleep Behaviormentioning
confidence: 99%
“…25 Type 1 and type 2 hypocretins are excitatory neurotransmitter peptides produced exclusively by these hypothalamic cells. The hypocretin system has two subpopulations of receptors (hypocretin-1 and hypocretin-2) with distinct affinities for the hypocretin peptides.…”
Section: Ethiopathogenesis Of Narcolepsy 1) Dysfunction Of the Hypothmentioning
confidence: 99%
“…The neuronal loss in narcoleptic individuals with cataplexy is selective, affecting only hypocretinergic cells and sparing the adjacent neighboring neurons that contain melanin concentrating hormone (MCH), which co-localize with hypocretinergic cells. 25 2) Narcolepsy-cataplexy and hypocretins Hypocretin deficiency engenders a state of disorganization and instability of sleep and wakefulness states. Excessive sleepiness, intrusions of sleep into wakefulness and of wakefulness during sleep (nocturnal sleep and naps), fragmented sleep, and innumerable transitions between sleep-wake-sleep have been reported.…”
Section: Ethiopathogenesis Of Narcolepsy 1) Dysfunction Of the Hypothmentioning
confidence: 99%
“…Разнообразие клинической картины течения нарколепсии связывают с функциональной неод-нородностью популяции гипоталамических орек-син-содержащих нейронов [25]. В ряде работ продемонстрирована функциональная дискрет-ность популяции орексин-содержащих нейронов гипоталамуса.…”
Section: Introductionunclassified
“…Потеря орексин-содержащих нейронов в гипо-таламусе при нарколепсии без катаплексических приступов ограничивалась ядрами PH и lateral hypothalamus (LH). При нарколепсии с ката-плексией потеря клеток наблюдалась в ядрах anterior hypothalamus (AH), dorsal hypothalamus (DH), DMH, PH и LH [25]. Установлено, что ка-таплексия как важный симптом встречается, по разным данным, у 20-50% больных нарколепсией [31].…”
Section: Introductionunclassified