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Melatonin protects uterus and oviduct exposed to nicotine in mice Cover

Melatonin protects uterus and oviduct exposed to nicotine in mice

Open Access
|Jul 2014

Abstract

Smoking is associated with higher infertility risk. The aim of this study was to evaluate protective effects of melatonin on the uterus and oviduct in mice exposed to nicotine. Adult female mice (n=32) were divided into four groups. Group A: control animals received normal saline, Group B: injected with nicotine 40 μg/kg, Group C: injected with melatonin 10 μg, Group D: injected with nicotine 40 μg/kg and melatonin 10 μg. All animals were treated over 15 days intraperitoneally. On the 16th day, animals in the estrus phase were dissected and their uterus and oviducts were removed. Immunohistochemistry was recruited for studying apoptosis and for detection of estrogen receptor (ER) alpha in luminal epithelium of the uterus and oviduct. Enzyme-linked immunosorbent assay was used for serum estradiol level determination. Nicotine in group B decreased estradiol level and ERalpha numbers both in the uterus and oviduct (p<0.05). Co-administration of melatonin-nicotine in Group D ameliorated the histology of the uterus and oviduct, increased ERalpha numbers and reduced apoptosis in the uterus and oviduct compared with the nicotine Group B (p<0.05). This study indicates that nicotine impairs the histology of the uterus and oviduct and co-administration of melatonin-nicotine ameliorates these findings, partly through alteration in ERalpha numbers and reduction of apoptosis

DOI: https://doi.org/10.2478/intox-2014-0007 | Journal eISSN: 1337-9569 | Journal ISSN: 1337-6853
Language: English
Page range: 41 - 46
Submitted on: Dec 13, 2013
Accepted on: Mar 28, 2014
Published on: Jul 16, 2014
Published by: Slovak Academy of Sciences, Institute of Experimental Pharmacology & Toxicology, Centre of Experimental Medicine
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2014 Seyedeh Nazanin Seyed Saadat, Fahimeh Mohammadghasemi, Sina Khajeh Jahromi, Mohammad Amin Homafar, Mostafa Haghiri, published by Slovak Academy of Sciences, Institute of Experimental Pharmacology & Toxicology, Centre of Experimental Medicine
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.