{"title":"Effects of Traumatic Brain Injury on the Orexin/Hypocretin System.","authors":"Rebecca T Somach, Miranda M Lim, Akiva S Cohen","doi":"10.1089/neur.2024.0111","DOIUrl":null,"url":null,"abstract":"<p><p>Traumatic Brain Injuries (TBIs) are known to cause a myriad of symptoms in patients. One common symptom after injury is sleep disruptions. One neuropeptide system has been studied repeatedly as a potential cause of sleep disruptions after TBI- the orexin/hypocretin system. Orexin promotes wakefulness and arousal while disrupting the orexin system causes increased sleepiness and narcolepsy. Studies of TBI in human and animal subjects have shown that TBI affects the orexin system. This review serves as an overview of how TBI affects the orexin/hypocretin system, including structural and functional changes to the neurons after injury. This review is the first to include studies that examine how TBI affects orexin/hypocretin receptors. This review also examines how sex is accounted for in the studies of the orexin system after TBI.</p>","PeriodicalId":74300,"journal":{"name":"Neurotrauma reports","volume":"6 1","pages":"322-335"},"PeriodicalIF":1.8000,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12040569/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Neurotrauma reports","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1089/neur.2024.0111","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"CLINICAL NEUROLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Traumatic Brain Injuries (TBIs) are known to cause a myriad of symptoms in patients. One common symptom after injury is sleep disruptions. One neuropeptide system has been studied repeatedly as a potential cause of sleep disruptions after TBI- the orexin/hypocretin system. Orexin promotes wakefulness and arousal while disrupting the orexin system causes increased sleepiness and narcolepsy. Studies of TBI in human and animal subjects have shown that TBI affects the orexin system. This review serves as an overview of how TBI affects the orexin/hypocretin system, including structural and functional changes to the neurons after injury. This review is the first to include studies that examine how TBI affects orexin/hypocretin receptors. This review also examines how sex is accounted for in the studies of the orexin system after TBI.
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