Start Submission Become a Reviewer

Reading: Environmental and occupational exposures as a cause of male infertility: A caveat

Download

A- A+
dyslexia friendly

Papers

Environmental and occupational exposures as a cause of male infertility: A caveat

Authors:

G.U.S. Wijesekara ,

University of Sri Jayewardenepura, LK
About G.U.S.
Lecturer, Department of Health Science, Faculty of Medical Sciences
X close

D.M.S. Fernando,

University of Sri Jayewardenepura, LK
About D.M.S.
Professor, Department of Physiology, Faculty of Medical Sciences
X close

S. Wijerathna,

University of Colombo, LK
About S.
Professor, Department of Obstetrics and Gynaecology, Faculty of Medicine, University of Colombo.
X close

N. Bandara

University of Sri Jayewardenepura, LK
About N.
Professor, Department of Forestry and Environmental Science, Faculty of Applied Sciences
X close

Abstract

Objectives To determine the association between environmental and occupational exposures, semen parameters and lead (Pb) and cadmium (Cd) levels in seminal plasma of men investigated for infertility.

Methods Data were collected from 300 men investigated for infertility using an interviewer administered questionnaire. Seminal fluid analysis and classification was done according to WHO guidelines. Positive exposure was defined as environmental or occupational exposure to agro or industrial chemicals, heavy metals and living in areas within 50m of potential sources of pollution for three months or more. Seminal plasma lead and cadmium levels were estimated by graphite furnace atomic absorption spectrophotometry after digestion with nitric acid. The means of sperm parameters, Pb and Cd concentrations between exposed and non exposed groups were compared using t-test.

Results Mean age was 34.8 (95% CI 34.2-35.4) years BMI was 24.3 (95% CI 23.8-24.7) kg/m2 and duration of the infertility was 45.7 (41.7-49.6) months. In this study, 54.6% were exposed to toxins through environmental or occupational sources. All sperm parameters were lower in the exposed group when compared to the non exposed. Lead and cadmium were detected in 38.3% and 23% of men respectively. The distance from the source of possible environmental or occupational exposure was negatively correlated to seminal plasma Pb (r=0.06, p>0.05) and Cd (r=0.26, p<0.05) concentrations. In the exposed, mean lead concentration was 17.7 (95% CI 15.0-20.4) μg/dl and 13.5 (95% CI 11.2-15.7) μg/dl in non exposed and cadmium concentration in exposed was 1.2 (95% CI 1.1- 1.4) μg/dl and 1.1 (0.9-1.3) μg/dl in non-exposed.

Conclusions Environmental and occupational exposures were associated with reduced sperm count motility, viability, normal forms and detectable levels of lead and cadmium in seminal plasma.

Ceylon Medical Journal 2015; 60: 52-56

DOI: http://doi.org/10.4038/cmj.v60i2.7090
How to Cite: Wijesekara, G.U.S. et al., (2015). Environmental and occupational exposures as a cause of male infertility: A caveat. Ceylon Medical Journal. 60(2), pp.52–56. DOI: http://doi.org/10.4038/cmj.v60i2.7090
Published on 14 Jun 2015.
Peer Reviewed

Downloads

  • PDF (EN)

    comments powered by Disqus