Mitigation of lead neurotoxicity by the ethanolic extract of Laurus leaf in rats

被引:49
作者
Gazwi, Hanaa S. S. [1 ]
Yassien, Eman E. [1 ]
Hassan, Hanaa M. [1 ]
机构
[1] Minia Univ, Fac Agr, Dept Agr Chem, El Minia, Egypt
关键词
Laurus leaves; Total flavonoids; Total phenolic; LC-MS; Lead acetate; Acetylcholinesterase; OXIDATIVE STRESS; ANTIOXIDANT ACTIVITY; BRAIN; EXPOSURE; ANTIBACTERIAL; TOXICITY; LEAVES; LIVER;
D O I
10.1016/j.ecoenv.2020.110297
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The present study was conducted in order to assess the chemical composition of Laurus, its antioxidant activities, and benefit from the Laurus extract effect on neurotoxicity caused by lead acetate (Pb). Chemical profile was assayed by using liquid chromatography coupled with high-resolution mass spectrometry (LC-HR-MS). In this study, 40 male rats were divided into four groups (10 rats per each group): (1) control group, (2) Laurus group: rats treated with 250 mg/kg b. wt. of Laurus leaves extract, (3) Pb group: rats treated with 100 mg/kg b. wt. of lead acetate, (4) Pb + Laurus group: rats treated with 250 mg/kg b. wt. of Laurus leaves extract in addition to lead acetate for 30 days. At the end of experiment, some estimates were calculated from blood samples, brain tissue, and histological examination. The results showed that the extract is highly affluent in total flavonoids, total phenolic, and also has antioxidant activity. The LC-MS appeared a wide range of compounds in the extract. The oxidative stress resulted from exposure to lead acetate has been reported to cause reduction in body and brain weights, levels of RBCs, acetylcholinesterase (AChE), GSH, SOD, and CAT in addition to increase in levels of WBCs and MAD. Moreover, Laurus leaves extract notably lessened the biochemical changes caused by lead acetate in the blood, homogenate, and brain tissue (P < 0.05). The current study indicates the antioxidant activity of Laurus leaves extract and assumes that it has a defensive role against the oxidative damage caused by lead in a rat's brain.
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页数:8
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