Article: mtDNA, sperm motility linked.

INCREASED SPERM mitochondrial DNA (mtDNA) copy number and poor mtDNA integrity are associated with low sperm motility, according to a study. The finding could lead to new ways to treat male infertility.

"Mitochondrial DNA copy number or integrity might be a good diagnostic tool in that it could explain male infertility, such as abnormal sperm function," said lead investigator Gyunjee Song, PhD, a research fellow at the University of Rochester in New York. "It is easy to measure and could be an important diagnostic tool, although much work needs to be done."

The integrity of sperm nuclear DNA in recent years has emerged as an important diagnostic marker ...

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