Entries in Male Infertility (2)


Will Eating Junk Food Make Men Infertile?

iStockphoto/Thinkstock(CAMBRIDGE, Mass.) -- Junk food adds weight, clogs arteries and, according to a new study, may make young men infertile.

The Sun reports a new joint study by researchers at Harvard University and the University of Murcia in Spain shows men who eat lots of junk food, particularly items containing trans fats, have poorer quality sperm.

The study examined sperm from hundreds of men between the ages of 18 and 22.  Men who ate a high proportion of junk food had poorer quality sperm than those guys with a healthy diet.

The study also found the sperm of men with junk food diets remained poor and were less likely to fertilize an egg, even if the subjects exercised and maintained a healthy weight.

Copyright 2011 ABC News Radio


New Genetic Cause of Male Infertility Identified

Stockbyte/Thinkstock(SACRAMENTO, Calif.) -- Human infertility affects about 14 percent of the world’s population. In about half of the cases, the cause lies with the male partner.  Although the culprit of male infertility is often a low sperm count, or abnormal sperm motility or morphology, researchers at the UC Davis School of Medicine identify a new cause in their paper published in Science Translational Medicine.  They say a genetic variation not uncommon in both European and Chinese men may also cause male infertility.  

Turns out that if men have a particular variant of a gene called DEFB126, their sperm have an 84 percent reduced ability to move through cervical mucus, thereby reducing their likelihood of ever reaching and fertilizing the egg.  The authors found that wives of men with this genetic variation were much less likely to become pregnant and were 30 percent less likely to actually give birth compared to wives of men without the genetic variation.

The author of an accompanying editorial writes that “if replicated in future studies, these findings promise to guide choices about the timing and type of assisted reproduction interventions, and further hint at the possibility of treating sperm from [men with this genetic variation] to promote fertility.”

Copyright 2011 ABC News Radio

ABC News Radio