Altered Expression of Succinic Dehydrogenase in Asthenozoospermia Infertile Male
Article first published online: 17 SEP 2012
© 2012 John Wiley & Sons A/S
American Journal of Reproductive Immunology
Volume 68, Issue 6, pages 486–490, December 2012
How to Cite
Altered expression of succinic dehydrogenase in asthenozoospermia infertile male. Am J Reprod Immunol 2012, , , .
- Issue published online: 8 NOV 2012
- Article first published online: 17 SEP 2012
- Manuscript Accepted: 13 AUG 2012
- Manuscript Received: 21 MAY 2012
- Immunocytochemical detection;
- mitochondrial damage;
- TCA cycle
There is a possibility that mitochondrial respiration defects may contribute to asthenozoospermia.
Method of study
Immunocytochemical detection was used to localize succinic dehydrogenase (SDH) in the head and mid-piece of spermatozoa by fluorescent microscope.
The study revealed dispersed SDH activity in the semen of asthenozoospermic subjects in comparison with control semen samples. While the stain intensity varied from cell to cell in controls as well as in patients, it was predominantly localized within mid-piece of spermatozoa in healthy individuals. In contrast, in semen of infertile male, the diffused and dispersed SDH immunoreactivity was observed in head as well as in mid-piece region of spermatozoa.
Dispersed expression of mitochondrial SDH in head and mid-piece of spermatozoa of asthenozoospermia subjects indicates mitochondrial damage because of metabolic or genetic factors, affecting energy production and leading to disturbed sperm motility, which could be pathologically significant. Detailed mitochondrial SDH immunolocalization studies are warranted to establish a role of deranged tricarboxylic acid cycle in causation of male infertility.