Common genetic variants affect the risk of abnormalities in chromosome number (a phenomenon known as aneuploidy), a major cause of pregnancy loss, according to a study published in Nature. The ...

Somewhere on the short arm of the ninth chromosome, there lies a locus, or loci, that can cause amyotrophic lateral sclerosis (ALS) or frontotemporal lobar dementia (FTLD). A portion of the petit (p) ...

Human egg cells are often prone to chromosomal errors. As women age, the error rate increases sharply — and can contribute to infertility, pregnancy loss, and ...

The improper segregation of chromosomes during cell division leads to abnormalities that disrupt the proper functioning of the cell. Cells with an abnormal number of chromosomes consequently activate ...

In my clinical practice, many women planning pregnancy ask whether age can affect the health of their baby. Over the last few decades, it has become common for women to start families later because of ...

I still recall my disappointment one day in 2015. I received the tumor DNA sequencing results for one of my patients, whose cancer had spread from her lungs to her brain. I saw not a single genetic ...