Sentences with phrase «of abnormal sperm»

Fertility problems: Men with hypothyroidism have a higher rate of abnormal sperm and reduced sperm motility.

Non-obstructive azoospermia refers to no sperm in the semen because of abnormal sperm production.

Smoking and chewing tobacco can lower sperm count and increase the number of abnormal sperm a man produces, while heavy drinking can also damage sperm quality.

Men with higher levels of DDE — a breakdown product of the pesticide DDT — and polychlorinated biphenyls (PCBs), which were used in transistors and electronics, at 14 years old had higher rates of abnormal sperm.

«The testes have a built - in cleaning system, so to speak, that gets rid of the abnormal sperm,» Tash says.

Not exact matches

We know that abnormal sperm cause the majority of male infertility problems.

But it also might be chromosome number two, and so if you have an abnormal amount of chromosome number two, and then the sperm comes in and meets it you either have only one or you might have three.

When vom Saal exposed male mice to a tiny amount of BPA during their fetal development, they grew abnormal prostates and damaged testes and had lower sperm production.

Previous research suggests sperm with an abnormal amount of chromosomes may lead to failed pregnancies and birth defects.

The latest study of a new at - home test kit, published today in Science Translational Medicine, found that even untrained users were able to measure sperm count and concentration as well as motility (the percentage of actively moving sperm), detecting abnormal semen with 97 percent accuracy compared with traditional lab testing.

The introduction of ICSI in 1992 revolutionized the treatment of couples with male factor infertility (infertility due to abnormal semen characteristics, abnormal sperm function, or surgical sterilization), and made paternity possible for a large proportion of men with no measurable sperm count.

Overall, the smartphone - based device was able to detect abnormal semen samples based on WHO thresholds on sperm concentration and motility (sperm concentration < 15million sperm / ml and / or sperm motility < 40 %) with an accuracy of 98 percent.

One must have had an abnormal egg or sperm that retained two copies of its chromosomes instead of the usual single set that is in such germ cells, Lyko explains.

The team found that, on average, 48 % of the sperm of endangered species was abnormal, compared with 30 % in non-endangered species.

These genes likely came from the gametes — the eggs or sperm — and can be used to predict whether an embryo is chromosomally normal or abnormal at the earliest stage of human development.

«We treated couples where the husband had very abnormal sperm, so it is not so surprising that in their sons the quality of their sperm had an impact on them,» explained lead researcher Dr. Andre Van Steirteghem, an emeritus professor at Vrije Universiteit in Brussels.

A study was made where researchers were feeding lab mice trans - fat acids and the results showed that the mice had lowered levels of testosterone, and not only that, they had abnormal sperm morphology.

Higher levels of dietary folate in men have been related to the presence of fewer abnormal sperm than in those men with a low intake of folate.

Follicle Stimulating Hormone (FSH)-- FSH stimulates the production of eggs and sperm and is often measured to evaluate infertility, abnormal menstruation, and is an indicator of menopause.

According to a new report released by the Environmental Working Group (EWG), commissioned by the Campaign for Safe Cosmetics, seventeen name brand perfume products were found to contain a «complex cocktail of natural essences and synthetic chemicals - often petrochemicals,» including diethyl phthalate, a chemical linked to sperm damage in adult men and abnormal development of reproductive organs in baby boys.