부산대학교 도서관

Background: Inflammation plays a major part in brain ischemia. Propolis is a polyphenol-rich hive product with a set of pharmaceutical properties. Objectives: This research aims to investigate the impact of water extracts of brown propolis (WEPs) on stroke outcomes and inflammatory responses in a rat model of permanent middle cerebral artery occlusion (MCAO). Materials & Methods: This experimental study was conducted in Rafsanjan, Iran, in 2017. WEPs were experimentally prepared from two regions in Iran. Gas chromatography-mass spectrometry and Folin-Ciocalteu assays were used to determine chemical portrayal and the total polyphenol content, respectively. A total of 66 male adult mice were divided randomly into the surgical sham, control (vehicle-treated), and four WEPs-treated animal groups. WEPs-treated groups received doses of 100 and 200 (mg/kg, IP) four times, and their behavioral tests, brain edema, infarct volume, and tumor necrosis factor-alpha (TNF-a) level were evaluated. Results: The samples were not significantly different in terms of the concentration of the total polyphenol content. Compared to the control, WEPs led to a substantial decrease in the TNF-a level (P<0.05) as well as a subsequent reduction in the brain edema and infarct volume (P<0.001) in all treatment groups. Furthermore, there was a significant improvement in neurological deficits and sensory-motor impairments level (P<0.05). Conclusion: According to the study findings, WEPs reduce brain ischemia damage, perhaps by exerting a neuroprotective effect on stroke-induced neuroinflammatory responses. [ABSTRACT FROM AUTHOR]