Researchers have known for some time that sperm can deteriorate as men age. These changes can affect various aspects, ...

A test deployed in many fertility clinics to assess the viability of embryos for use in IVF is likely to overestimate the ...

Human embryos formed with in vitro fertilisation can develop genetic abnormalities in the time between genetic testing and ...

Three copies of chromosome 21 cause Down syndrome (DS), and roughly half of children born each year in the United States with ...

Researchers are studying development of human pre-implantation embryos in an effort to improve success of embryo growth and development.

Seattle biotech company Phase Genomics announced Wednesday that it received two National Institutes of Health (NIH) grants totaling $3.9 million. The funding, which runs for three years, will help pay ...

As the human genome gradually yields up its secrets, scientists are finding some genetic events, such as rearrangements in chromosomes, are less random than they had previously thought. Originating as ...

IN 1961 Oikawa and Blizzard 1 described an eleven-year-old phenotypic male with bilateral undescended testes, clinical features of Turner's syndrome, a positive buccal smear and absence of a Y ...

Mother’s Day is a happy day for millions, but for those who have experienced a miscarriage, the day can be devastating. As many as one in four recognized pregnancies result in miscarriage. Pregnancy ...

A syndrome in male cats analogous to chromatin-positive Klinefelter's syndrome in human males has been demonstrated. The physical characteristics which suggested an abnormality of chromosome number in ...