alexa Histological Study on the Protective Effect of Green Tea Extract on the Liver of Rats Exposed to Ketamine
ISSN: 2157-7099

Journal of Cytology & Histology
Open Access

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Research Article

Histological Study on the Protective Effect of Green Tea Extract on the Liver of Rats Exposed to Ketamine

Lamiaa Ibrahim Abd El-Fattah and Dalia Ibrahim Ismail*

Department of Histology, Faculty of Medicine, Cairo University, Egypt

*Corresponding Author:
Dalia Ibrahim Ismail
Department of Histology
Faculty of Medicine
Cairo University, Egypt
Tel: 01005050870
E-mail: [email protected]

Received date: June 25, 2015 Accepted date: July 15, 2015 Published date: July 17, 2015

Citation:Abd El-Fattah LI, Ibrahim Ismail D (2015) Histological Study on the Protective Effect of Green Tea Extract on the Liver of Rats Exposed to Ketamine. J Cytol Histol 6:349. doi:10.4172/2157-7099.1000349

Copyright: ©2015 Abd El-Fattah LI, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Background: Green tea intake is accompanied with a lower incidence of cancer, cardiovascular disease, and neurodegenerative disorders; hence green tea extract is included in multivitamins and other dietary supplements.
Aim of the work: Studying the effect of ketamine administration on the liver of adult male albino rats and demonstrating the possible protective role of green tea extract.
Material and methods: Forty adult male albino rats were divided into four groups, ten rats each. Group I: control group. Group II: rats received green tea extract orally (50 mg/Kg/day) for five weeks. Group III: rats were injected intraperitoneally with ketamine (100 mg/kg/day) for two weeks. Group IV: rats received green tea extracts orally (50 mg/Kg/day) for three weeks, and then continued for further two weeks concomitantly with intraperitoneally injected ketamine (100 mg/kg/day). Serum levels of AST, ALT, GSH and MDA were measured. Liver sections were subjected to H & E, iNOS immunohistochemical stain, and toluidine blue stain and transmission electron microscopic examination. Followed by statistical analysis of biochemical and morphometric results.
Results: In group III, serum liver enzymes and oxidative stress indicators together with positive area of iNOS immunohistochemical stain were significantly increased as compared to control. In liver sections of ketamine treated group, hepatocytes showed signs of degeneration and multiple cytoplasmic vacuoles of variable sizes with dilated blood sinusoids. At ultrastructural level, nuclei with irregular outline, dilated and discontinued RER with empty spaces within the cytoplasm of hepatocytes were recorded. Interestingly, the picture was comparable to control with concomitant use of green tea extract.
Conclusion: Green tea extract has a hepato-protective effect in rats exposed to ketamine.


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