Challenging the previous theory that claims the higher number of sperms is the key of the fertility in male, a new research says that not just the counting but the length of the sperms also matter for enhancing the chances of fertilization.
According to James Mossmon, the lead researcher, Brown University, Rhode Island the chances of fertilization improves when the semen containing strong and higher numbers of sperms having similar length of tails as they can swim better in team and fertilized egg easily.
The findings add to our understanding of why some couples struggle to have children.
Couples are recommended to visit doctors if they have not conceived after one year of trying, or sooner if the woman is aged over 35.
For the study, researchers from Brown University in Rhode Island examined the semen of 103 men attending an infertility clinic at Sheffield Teaching Hospital NHS Foundation Trust.
They found that the wider the variation of sperm length in samples, the lower the concentration of motile sperm. The variation in tail length was found to be the most crucial factor.
"Sperm length measurements may provide a useful insight into testis function and the efficiency of spermatogenesis (sperm cell development)," the scientists said.
It is another piece in the jigsaw that explains why only one percent of the 300million sperm released by a man during sex manages to reach their partner's uterus, while just a few dozen reach the egg.
The findings are published in the journal Human Reproduction.
--With IANS Inputs--
null
|
|
Comments:
