title: Effects of Tannic Acid on the Ischemic Brain Tissue of Rats.
abstract: Many studies of brain ischemia have shown the role played by massive ischemia-induced production of reactive oxygen species, the main mechanism of neuronal death. However, currently, there is no treatment choice to prevent cell death triggered by reactive oxygen species. In our study, we researched the effects of tannic acid, an antioxidant, on the ischemic tissue of rats with induced middle cerebral artery occlusion. The animals were divided into three groups of eight animals. The sham group were only administered 10 % ethanol intraperitoneally, the second group had middle cerebral artery occlusion induced and were given 10 % ethanol intraperitoneally, while the third group had middle cerebral artery occlusion with 10 mg/kg dose tannic acid dissolved in 10 % ethanol administered within half an hour intraperitoneally. The rats were sacrificed 24 h later, and brain tissue was examined biochemically and histopathologically. Biochemical evaluation of brain tissue found that comparing the ischemic group with no treatment with the tannic acid-treated ischemia group; the superoxide dismutase (SOD) levels were higher, malondialdehyde (MDA) levels were lower, and nuclear respiratory factor-1 (NRF-1) was higher in the tannic acid-treated group. Histopathological examination showed that the histopathological results of the tannic acid group were better than the group not given tannic acid. Biochemical and histopathological results showed that tannic acid administration had an antioxidant effect on the negative effects of ischemia in brain tissue.
authors.affiliation: Department of Neurology, Faculty of Medicine, Canakkale Onsekiz Mart University, Terzioğlu Kampüsü, Canakkale, Turkey, hmuratsen@gmail.com.
authors.forename: Halil Murat
authors.initials: HM
authors.lastname: Sen
authors.forename: Adile
authors.initials: A
authors.lastname: Ozkan
authors.forename: Mustafa
authors.initials: M
authors.lastname: Guven
authors.forename: Tarık
authors.initials: T
authors.lastname: Akman
authors.forename: Adem Bozkurt
authors.initials: AB
authors.lastname: Aras
authors.forename: Ibrahim
authors.initials: I
authors.lastname: Sehitoglu
authors.forename: Hasan
authors.initials: H
authors.lastname: Alacam
authors.forename: Coskun
authors.initials: C
authors.lastname: Silan
authors.forename: Murat
authors.initials: M
authors.lastname: Cosar
authors.forename: Handan Isın
authors.initials: HI
authors.lastname: Ozisik Karaman
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000494:pharmacology / Q000627:therapeutic use*; D001921:Brain / Q000187:drug effects* / Q000378:metabolism / Q000473:pathology; D002545:Brain Ischemia / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology; D008297:Male; D018384:Oxidative Stress / Q000187:drug effects / Q000502:physiology; D051381:Rats; D017207:Rats, Sprague-Dawley; D017382:Reactive Oxygen Species / Q000037:antagonists & inhibitors / Q000378:metabolism; D013634:Tannins / Q000494:pharmacology / Q000627:therapeutic use*
chemical_list: D000975:Antioxidants; D017382:Reactive Oxygen Species; D013634:Tannins