A mother says her “gut instinct” told her something was wrong with her baby boy immediately after she gave birth — and doctors soon delivered a devastating diagnosis. Hannah Doyle’s son, Zander, was ...

Ideograms and partial karyotypes are shown. For the deletions, the arrows indicate a) the deletion of chromosome 15q11-13 associated with Prader-Willi and Angelman syndromes, and b) the deletion of ...

Some types of Prader-Willi syndrome (PWS) have more genes affected, causing greater symptom severity.Older age of the mother ...

Donna McDonald-McGinn, M.S., CGC, associate director of Clinical Genetics and program director of the "22q and You" Center at The Children's Hospital of Philadelphia, received the Angelo DiGeorge ...

Researchers have revealed a novel association between chromosome 18q deletion syndrome and late-onset combined immunodeficiency (LOCID). Their finding challenges the previously held notion that 18q ...

In a recent study posted to the medRxiv* preprint server, a group of researchers identified large deletions in individuals with unexplained hyperinsulinism (HI), thereby elucidating the potential ...

Translocations, in genetics, happen when chromosomes break and the pieces attach to other chromosomes. This mixing of genetic material has important results. The resultant chromosomes are lacking in ...

Large and rare duplications and deletions in a chromosome region known as 22q11.2 , which involves genes that regulate cardiac development, are linked to nonsyndromic bicuspid aortic valve disease, ...

Researchers at the Francis Crick Institute studying male mice engineered with different Y chromosome deletions have uncovered which genes on the mouse Y chromosome regulate the development of sperm ...