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.
A false negative test indicates that you are NOT pregnant when, in fact, you are. This can lead to quite a bit of confusion and anxiety. To avoid this error, you must be aware of the possible causes for this result.