Association between seminal plasma copper and magnesium levels with oxidative stress in Iraqi infertile men

ABSTRACT

To study the association between copper, magnesium and malondialdehyde levels in seminal plasma of oligozoospermic, azoospermic in relation to normozoospermic men. The present study was conducted at the Chemistry and Biochemistry department, College of Medicine, Al-Nahrain University, Baghdad-Iraq during September 2007 to February 2008 after obtaining approval from the research and ethics committee and obtaining written consent, 78 infertile men [age range 33.01 +/- 4.20 years] were recruited at the institute of embryo research and infertility treatment, Al-Kadhimiya teaching hospital, Iraq and were categorized according to their seminal fluid parameters to oligozoospermia [n=43] and azoospermia [n=35]. 41 fertile men [age range 30.29 +/- 2.30 years] were selected as controls. Seminal plasma copper and magnesium were measured by atomic absorption spectrophotometry. Malondialdehyde was measured calorimetrically using thiobarbituric acid assay which detects thiobarbituric acid reactive substances. Seminal plasma copper level was decreased significantly [p=0.000] in the azoospermic group compared to the control group. Whereas, the level decreased non-significantly in the oligozoospermic group. Seminal plasma magnesium levels were decreased significantly [p=0.000] in all the infertility groups studied. On the other hand, malondialdehyde levels which is an end product of lipid peroxidation were significantly elevated [p=0.000] in all the infertility groups studied. Copper and magnesium work in different ways in order to maintain normal environment for spermatozoa for normal fertilization to occur