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L. 通过抗氧化、抗炎和抗分泌活性促进对啮齿动物的胃保护作用。

L. Promotes Gastroprotection in Rodents via Antioxidant, Anti-Inflammatory, and Antisecretory Activities.

作者信息

Vecchia Cristian A D, Locateli Gelvani, Serpa Patricia Z, Bianchin Gomes Denise, Ernetti Jackeline, Miorando Daniela, Zanatta Maria Eduarda D C, Kaio Silva Nunes Ruan, Wildner Silvana M, Gutiérrez Max V, Vilegas Wagner, Somensi Lincon B, Silva Luisa M, Roman Junior Walter A

机构信息

Postgraduate Program in Health Sciences, Community University of Chapeco Region, 89809-900 Chapecó, SC, Brazil.

Pharmacognosy Laboratory, Community University of Chapecó Region, 89809-900 Chapecó, SC, Brazil.

出版信息

Evid Based Complement Alternat Med. 2022 Aug 23;2022:7413231. doi: 10.1155/2022/7413231. eCollection 2022.

Abstract

L. is an edible and medicinal plant used to treat stomachache and gastric ailments around the world. Thus, this study aimed to determine the gastroprotective mode of action of hydroalcoholic extract of . (HES). Mice were treated with HES before induction of gastric ulceration by ethanol/HCl. The area and histological appearance of ulcers were quantified, and mucus was measured histochemically. The effects of HES on inflammatory and oxidative markers were assessed in the ulcerated tissue. In addition, we investigated the gastric acid antisecretory activity of HES in pylorus-ligated rats. Chemical analyses of HES and its antioxidant activity were also performed . The HES (30 or 300 mg/kg) reduced the ulceration by 71.5 and 76.2%, respectively, compared with vehicle ( < 0.001), and the histological analysis confirmed the macroscopic results with elevation in mucin levels by 361.4 and 477.5%, respectively, compared with vehicle ( < 0.001). Moreover, the gastroprotection was accompanied by increases in GSH levels and in SOD, CAT, and GST activities; in parallel to a reduction in MPO activity and TNF levels. Furthermore, HES reduced the total acidity, and pepsin activity of the gastric juice of rats by 61 and 63%, respectively, compared to the vehicle. Phytochemical analysis indicated that luteolin-7---D-glucoside is the main active compound annotated in HES. Was also found that HES scavenged the DPPH radical with an IC of 15.41 g/mL. In conclusion, the gastroprotective effects of HES involve reductions in oxidative stress and inflammatory injury, in conjunction with an increase in mucus layer and inhibition of gastric secretion. This study advances in elucidating the modes of the antiulcer potential of . and contributes to the prospection of new gastroprotective molecules.

摘要

L. 是一种可食用的药用植物,在世界各地用于治疗胃痛和胃部疾病。因此,本研究旨在确定L. 的水醇提取物(HES)的胃保护作用机制。在通过乙醇/盐酸诱导胃溃疡之前,用HES处理小鼠。对溃疡的面积和组织学外观进行量化,并通过组织化学方法测量黏液。在溃疡组织中评估HES对炎症和氧化标志物的影响。此外,我们研究了HES对幽门结扎大鼠胃酸分泌的抑制活性。还对HES进行了化学分析及其抗氧化活性测定。与赋形剂相比,HES(30或300 mg/kg)分别使溃疡减少了71.5%和76.2%(P<0.001),组织学分析证实了宏观结果,与赋形剂相比,黏液水平分别升高了361.4%和477.5%(P<0.001)。此外,胃保护作用伴随着谷胱甘肽(GSH)水平以及超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和谷胱甘肽-S-转移酶(GST)活性的增加;同时髓过氧化物酶(MPO)活性和肿瘤坏死因子(TNF)水平降低。此外,与赋形剂相比,HES使大鼠胃液的总酸度和胃蛋白酶活性分别降低了61%和63%。植物化学分析表明,木犀草素-7-O-D-葡萄糖苷是HES中注释的主要活性化合物。还发现HES清除DPPH自由基的半数抑制浓度(IC)为15.41 μg/mL。总之,HES的胃保护作用包括减轻氧化应激和炎症损伤,同时增加黏液层并抑制胃酸分泌。本研究在阐明L. 的抗溃疡潜力机制方面取得了进展,并有助于新的胃保护分子的勘探。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a696/9427263/01c7982ed235/ECAM2022-7413231.001.jpg

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