美国罗切斯特大学医学中心Maiken Nedergaard、丹麦哥本哈根大学Yuki Mori等研究人员合作发现，脑脊液涌入导致急性缺血性组织肿胀。该研究于2020年1月30日在线发表于国际一流学术期刊《科学》。

Title: Cerebrospinal fluid influx drives acute ischemic tissue swelling

Author: Humberto Mestre, Ting Du, Amanda M. Sweeney, Guojun Liu, Andrew J. Samson, Weiguo Peng, Kristian Nygaard Mortensen, Frederik Filip Stger, Peter A.R. Bork, Logan Bashford, Edna R. Toro, Jeffrey Tithof, Douglas H. Kelley, John H. Thomas, Poul G. Hjorth, Erik A. Martens, Rupal I. Mehta, Orestes Solis, Pablo Blinder, David Kleinfeld, Hajime Hirase, Yuki Mori, Maiken Nedergaard

Issue&Volume: 2020/01/30

Abstract: AbstractStroke affects millions each year. Post-stroke brain edema predicts the severity of eventual stroke damage, yet our concept of how edema develops is incomplete and treatment options remain limited. In early stages, fluid accumulation occurs owing to a net gain of ions, widely thought to enter from the vascular compartment. Here we used magnetic resonance imaging, radiolabeled tracers, and multiphoton imaging in rodents, to show instead that cerebrospinal fluid surrounding the brain enters the tissue within minutes of an ischemic insult along perivascular flow channels. This process was initiated by ischemic spreading depolarizations along with subsequent vasoconstriction, which in turn enlarged the perivascular spaces and doubled glymphatic inflow speeds. Thus, our understanding of post-stroke edema needs to be revised and these findings could provide a conceptual basis for development of alternative treatment strategies.

DOI: 10.1126/science.aax7171

Source: https://science.sciencemag.org/content/early/2020/01/29/science.aax7171