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提取物通过增强大鼠体内Nrf2表达减轻毒液诱导的毒性、组织病理学损伤和炎症。

Extract Extenuates Venom-Induced Toxicities, Histopathological Impairments and Inflammation via Enhancement of Nrf2 Expression in Rats.

作者信息

Adeyi Akindele O, Adeyemi Sodiq O, Effiong Enoh-Obong P, Ajisebiola Babafemi S, Adeyi Olubisi E, James Adewale S

机构信息

Animal Physiology Unit, Department of Zoology, University of Ibadan, Ibadan P.M.B. 200284, Oyo State, Nigeria.

Department of Zoology, Osun State University, Oshogbo P.M.B. 230212, Osun State, Nigeria.

出版信息

Pathophysiology. 2021 Mar 5;28(1):98-115. doi: 10.3390/pathophysiology28010009.

Abstract

snakebite causes more fatalities than all other African snake species combined. reportedly possesses an antivenom property. Therefore, we evaluated the effectiveness of ethanol extract (MOE) against (EOV) toxicities. Thirty male rats were grouped as follows ( = 5): Group 1 (normal control received saline), groups 2 to 6 were administered intraperitoneally, 0.22 mg/kg (LD50) of EOV. Group 2 was left untreated while group 3 to 6 were treated post-envenoming with 0.2 mL of polyvalent antivenom, 200, 400, and 600 mg/kg of MOE respectively. MOE significantly ( < 0.05) normalized the altered haematological indices and blood electrolytes profiles. MOE attenuated venom-induced cellular dysfunctions, characterized by a significant increase in NRF2, and concomitant downregulation of increased antioxidant enzymes (SOD and CAT) activities in the serum and heart of the treated rats. MOE normalized the elevated TNF-α and IL-1β in serum and heart tissues. Furthermore, the IgG titre value was significantly ( < 0.5) higher in the envenomed untreated group compared to the MOE-treated groups. Hemorrhagic, hemolytic and coagulant activities of the venom were strongly inhibited by the MOE dose, dependently. Lesions noticed on tissues of vital organs of untreated rats were abolished by MOE. Our findings substantiate the effectiveness of MOE as a potential remedy against EOV toxicities.

摘要

蛇咬伤造成的死亡人数比非洲所有其他蛇类造成的死亡人数总和还多。据报道具有抗蛇毒特性。因此,我们评估了乙醇提取物(MOE)对(EOV)毒性的有效性。将30只雄性大鼠分组如下(每组 = 5):第1组(正常对照组接受生理盐水),第2至6组腹腔注射0.22 mg/kg(半数致死量)的EOV。第2组不进行治疗,而第3至6组在注射毒液后分别用0.2 mL多价抗蛇毒血清、200、400和600 mg/kg的MOE进行治疗。MOE显著(< 0.05)使改变的血液学指标和血液电解质谱恢复正常。MOE减轻了毒液诱导的细胞功能障碍,其特征是NRF2显著增加,同时治疗大鼠血清和心脏中抗氧化酶(超氧化物歧化酶和过氧化氢酶)活性增加的情况下调。MOE使血清和心脏组织中升高的肿瘤坏死因子-α和白细胞介素-1β恢复正常。此外,与MOE治疗组相比,未治疗的中毒组的IgG滴度值显著(< 0.5)更高。MOE剂量依赖性地强烈抑制了毒液的出血、溶血和凝血活性。MOE消除了未治疗大鼠重要器官组织上发现的病变。我们的研究结果证实了MOE作为对抗EOV毒性的潜在药物的有效性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/accf/8830474/076c92c1961c/pathophysiology-28-00009-g001.jpg

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