{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T14:04:33Z","timestamp":1789653873699,"version":"4.0.0"},"reference-count":96,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T00:00:00Z","timestamp":1789603200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Immunol."],"abstract":"<jats:p>Subarachnoid hemorrhage (SAH) remains a devastating cerebrovascular emergency with high mortality and long-term neurological morbidity, yet the mechanisms driving secondary brain injury remain incompletely understood. The glymphatic system, a glial-dependent perivascular clearance pathway, promotes convective exchange of cerebrospinal fluid and interstitial fluid through aquaporin-4 water channels on astrocytic endfeet to remove neurotoxic solutes. Emerging evidence implicates glymphatic dysfunction as a key mediator of brain injury after SAH. This review synthesizes current knowledge on the anatomical and physiological foundations of the glymphatic system, examines the multifaceted mechanisms by which SAH disrupts this clearance network, and discusses the pathophysiological consequences linking glymphatic impairment to neurological outcomes. Understanding the glymphatic dimension of SAH pathophysiology may illuminate novel therapeutic targets and ultimately improve the clinical management of this devastating condition.<\/jats:p>","DOI":"10.3389\/fimmu.2026.1953626","type":"journal-article","created":{"date-parts":[[2026,9,17]],"date-time":"2026-09-17T13:33:31Z","timestamp":1789652011000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["The role of glymphatic system in brain injury after subarachnoid hemorrhage"],"prefix":"10.3389","volume":"17","author":[{"given":"Junli","family":"Peng","sequence":"first","affiliation":[{"name":"Department of Brain Diseases, Shuangfeng County Hospital of Traditional Chinese Medicine","place":["Loudi, Hunan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wanying","family":"Li","sequence":"additional","affiliation":[{"name":"Xiangya School of Medicine, Central South University","place":["Changsha, Hunan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qian","family":"Zhong","sequence":"additional","affiliation":[{"name":"School of Health Medicine, Kashgar Vocational and Technical College","place":["Xinjiang, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liwei","family":"Li","sequence":"additional","affiliation":[{"name":"School of Pharmacy, College of Medicine, Hunan Normal University","place":["Changsha, Hunan, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sufang","family":"Tang","sequence":"additional","affiliation":[{"name":"Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University","place":["Guangzhou, China"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yiheng","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Neurology, First Affiliated Hospital of Guangzhou Medical University","place":["Guangzhou, 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