The vast majority of glucocorticoid activity in most mammals is from cortisol, also known as hydrocortisone. Corticosterone, the major glucocorticoid in rodents, is another glucocorticoid.
Men who test negative for a known breast cancer gene abnormality have the same very low risk of developing breast cancer as men in the general population. Whether you are a woman or a man, testing negative also means that you could not have passed the genetic abnormality on to your children.
Prenatal genetic testing refers to tests that are done during pregnancy to either screen for (see below) or diagnose a birth defect. The goal of prenatal genetic testing is to provide expectant parents with information to make informed choices and decisions.