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International Journal of Medical Research & Health Sciences
Year : 2016, Volume : 5, Issue : 1
First page : ( 1) Last page : ( 6)
Online ISSN : 2319-5886.
Article DOI : 10.5958/2319-5886.2016.00001.1

Seminal plasma levels of lead and mercury in infertile males in Benin city, Nigeria

Emokpae MA1,*, Christian Adobor1, Ibadin K2

1Department of Medical Laboratory Science, School of Basic Medical Sciences, University of Benin

2Human Reproduction and Research programme Unit, University of Benin Teaching Hospital, Benin City, Nigeria

*Corresponding author: Dr Mathias Abiodun Emokpae, Department of Medical Laboratory Science, School of Basic Medical Sciences, College of Medical Sciences, University of Benin, Benin City, Nigeria. Email: biodunemokpae@yahoo.com

Online published on 1 February, 2016.

Abstract

Background/objectives

Studies on environmental exposure to toxic metals and their effects on male reproductive function are scare in our setting. This study evaluates the levels of lead and mercury in seminal plasma of infertile males who are non-occupationally exposed in Benin City, Nigeria and to determine the relationship between seminal quality and these toxic metals.

Materials and Methods

A total of 80 subjects participated in this study which includes 60 infertile males on routine visit to the infertility clinics in Benin City and 20 fertile males as controls. The concentration of lead in seminal plasma was assayed by atomic absorption spectrophotometer while the concentration of mercury was measured using inductively coupled plasma Mass spectrometry. Semen analyses were performed using standard techniques as recommended by World Health Organization.

Results

Mean seminal plasma lead and mercury levels were significantly higher (p<0.001) in infertile males compared with controls. Mercury and lead correlated negatively (p<0.001) with sperm count, progressive motility, total motility and morphology but not with semen volume. There was no significant correlation between toxic metals and sperm indices in fertile males (controls).

Conclusion

The levels of the studied toxic metals were higher in seminal plasma of infertile males and appear to have adverse effect on seminal indices in non-occupationally exposed males.

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Keywords

Lead, mercury, male infertility, sperm quality, environmental exposure.

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