title: Intraischemic hypothermia during pretreatment with sublethal ischemia reduces the induction of ischemic tolerance in the gerbil hippocampus.
abstract: We examined whether mild brain hypothermia during pretreatment with sublethal 2-min ischemia affected the tolerance to subsequent lethal 5-min ischemia. The neuronal densities in the hippocampal CA1 sector of gerbils preconditioned at mild brain hypothermia (32% of normal) were significantly lower than those in gerbils preconditioned at brain normothermia (70% of normal). 72-kDa heat-shock protein immunoreactivity in the CA1 sector preconditioned at mild hypothermia was reduced. These results suggests that mild brain hypothermia during pretreatment with sublethal ischemia reduces the tolerance to subsequent lethal ischemia.
authors.affiliation: Department of Neurosurgery, National Defense Medical College, Saitama, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Wada
authors.forename: T
authors.initials: T
authors.lastname: Miyazawa
authors.forename: H
authors.initials: H
authors.lastname: Katoh
authors.forename: N
authors.initials: N
authors.lastname: Nomura
authors.forename: A
authors.initials: A
authors.lastname: Yano
authors.forename: K
authors.initials: K
authors.lastname: Shima
authors.forename: H
authors.initials: H
authors.lastname: Chigasaki
mesh_terms: D000818:Animals; D001831:Body Temperature; D002545:Brain Ischemia / Q000503:physiopathology*; D016923:Cell Death / Q000502:physiology; D005849:Gerbillinae; D050884:HSP72 Heat-Shock Proteins; D006360:Heat-Shock Proteins / Q000032:analysis / Q000378:metabolism; D006624:Hippocampus / Q000098:blood supply* / Q000166:cytology / Q000503:physiopathology*; D007035:Hypothermia / Q000503:physiopathology*; D007150:Immunohistochemistry; D008297:Male; D009474:Neurons / Q000737:chemistry / Q000378:metabolism / Q000502:physiology; D015398:Signal Transduction / Q000502:physiology
chemical_list: D050884:HSP72 Heat-Shock Proteins; D006360:Heat-Shock Proteins