title: Propofol reduces inflammatory reaction and ischemic brain damage in cerebral ischemia in rats.
abstract: Our previous studies demonstrated that inflammatory reaction and neuronal apoptosis are the most important pathological mechanisms in ischemia-induced brain damage. Propofol has been shown to attenuate ischemic brain damage via inhibiting neuronal apoptosis. The present study was performed to evaluate the effect of propofol on brain damage and inflammatory reaction in rats of focal cerebral ischemia. Sprague-Dawley rats underwent permanent middle cerebral artery occlusion, then received treatment with propofol (10 or 50 mg/kg) or vehicle after 2 h of ischemia. Neurological deficit scores, cerebral infarct size and morphological characteristic were measured 24 h after cerebral ischemia. The enzymatic activity of myeloperoxidase (MPO) was assessed 24 h after cerebral ischemia. Nuclear factor-kappa B (NF-κB) p65 expression in ischemic rat brain was detected by western blot. Cyclooxygenase-2 (COX-2) expression in ischemic rat brain was determined by immunohistochemistry. ELISA was performed to detect the serum concentration of tumor necrosis factor-α (TNF-α). Neurological deficit scores, cerebral infarct size and MPO activity were significantly reduced by propofol administration. Furthermore, expression of NF-κB, COX-2 and TNF-α were attenuated by propofol administration. Our results demonstrated that propofol (10 and 50 mg/kg) reduces inflammatory reaction and brain damage in focal cerebral ischemia in rats. Propofol exerts neuroprotection against ischemic brain damage, which might be associated with the attenuation of inflammatory reaction and the inhibition of inflammatory genes.
authors.affiliation: Department of Neurosurgery, Fujian Medical University Union Hospital, 29# Xinquan Road, Fuzhou, 350001, Fujian, China.
authors.forename: Song-sheng
authors.initials: SS
authors.lastname: Shi
authors.forename: Wei-zhong
authors.initials: WZ
authors.lastname: Yang
authors.forename: Ye
authors.initials: Y
authors.lastname: Chen
authors.forename: Jian-ping
authors.initials: JP
authors.lastname: Chen
authors.forename: Xian-kun
authors.initials: XK
authors.lastname: Tu
mesh_terms: D000818:Animals; D002545:Brain Ischemia / Q000188:drug therapy*; D002544:Cerebral Infarction / Q000473:pathology / Q000517:prevention & control; D051546:Cyclooxygenase 2 / Q000096:biosynthesis; D020244:Infarction, Middle Cerebral Artery / Q000473:pathology; D007249:Inflammation / Q000517:prevention & control*; D008297:Male; D016328:NF-kappa B / Q000378:metabolism; D018696:Neuroprotective Agents / Q000627:therapeutic use*; D009195:Peroxidase / Q000378:metabolism; D015742:Propofol / Q000627:therapeutic use*; D017207:Rats, Sprague-Dawley; D014409:Tumor Necrosis Factor-alpha / Q000378:metabolism
chemical_list: D016328:NF-kappa B; D018696:Neuroprotective Agents; D014409:Tumor Necrosis Factor-alpha; D009195:Peroxidase; D051546:Cyclooxygenase 2; D015742:Propofol