2013
DOI: 10.1002/ana.24019
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Increase of histaminergic tuberomammillary neurons in narcolepsy

Abstract: This surprising increase in histaminergic neurons in narcolepsy may be a compensatory response to loss of excitatory drive from the orexin neurons and may contribute to some of the symptoms of narcolepsy such as preserved consciousness during cataplexy and fragmented nighttime sleep. In addition, this finding may have therapeutic implications, as medications that enhance histamine signaling are now under development.

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Cited by 129 publications
(111 citation statements)
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“…Different compensatory mechanisms for the loss of function of hypocretin -such as increase in histamine neurons -are probably also involved [18][19][20][21]. Furthermore, we have recently found that narcolepsy patients have autoantibodies that stain distinct cell populations in rat brain, namely melanin-concentrating hormone (MCH), proopiomelanocortin (POMC), and neuropeptide glutamic acidisoleucine/alpha-melanocyte-stimulating hormone (NEI/αMSH) [22].…”
Section: Introductionmentioning
confidence: 99%
“…Different compensatory mechanisms for the loss of function of hypocretin -such as increase in histamine neurons -are probably also involved [18][19][20][21]. Furthermore, we have recently found that narcolepsy patients have autoantibodies that stain distinct cell populations in rat brain, namely melanin-concentrating hormone (MCH), proopiomelanocortin (POMC), and neuropeptide glutamic acidisoleucine/alpha-melanocyte-stimulating hormone (NEI/αMSH) [22].…”
Section: Introductionmentioning
confidence: 99%
“…In addition, the HA system may also be affected in narcolepsy, as HA levels in the CSF may be low in patients with narcolepsy and primary hypersomnia [34]. Two independent groups recently reported an increased number of HA cells in the TMN in post-mortem cases of human narcolepsy, possibly due to a compensatory response to HCT loss and/or related to the process itself causing human narcolepsy [35,36].…”
Section: Neurological Disorders Of Arousalmentioning
confidence: 99%
“…Кроме того, помимо патологических измене-ний, наблюдающихся в орексин-содержащих ней-ронах гипоталамуса, при нарколепсии обнаруже-ны изменения функции других активирующих систем, синтезирующих нейромедиаторы гиста-мин [33] и галанин [34]. Пониженный уровень ги-стамина в спинномозговой жидкости у пациентов с нарколепсией коррелирует с иммуногистохими-чески визуализируемым увеличением количества гистамин-содержащих нейронов, локализованных в тубермамиллярных ядрах гипоталамуса (TMN), что может свидетельствовать о нарушении балан-са синтеза и утилизации ýтого нейромедиатора.…”
Section: Introductionunclassified
“…Gavrilov et al (2013) высказывали пред-положение о компенсаторной роли установлен-ных изменений в ответ на потерю активирующих сигналов, посылаемых орексин-содержащими 10 нейронами. Эти же изменения, в свою очередь, могут вносить свой вклад в клиническую карти-ну нарколепсии.…”
unclassified