Doctor insights on:
Extra Y Chromosome
XYY: This syndrome is fairly well-known and one man in a thousand has it. Usually they escape detection as their intelligence matches the general population. They tend to be tall (which is fun) and get nasty acne (which is treatable). In my small series, parents write that they tend to speak later than other kids. The "natural criminal" stuff is media hype. ...Read more
Does X chromosome sperm live longer than Y chromosome sperm? If so what is the lifespan difference?
My husband has microdeletion y chromosome azfc (sy-239 and sy-242) at 50bp. Doctor said this is this is the cause of his azoosperm. Is this genetic?
How is it possible for a blood test find a male "y" chromosome in a females blood after she got a kidney transplant?
Microchimerism: The leukocytes in the transplanted kidney may enter the circulation of the recipient and stay there for years. If the donor was a male the circulating lymphocytes form the donor would carry a y chromosome. ...Read more
Will stop smoking improve sperm quality for 36yo male with noa due to y chromosome azfc microdeletion? Plan for 2nd icsi.
Not my table: This is a highly complex question, and should be best posed to both the geneticists and the reproductive endocrinologists who are likely already involved in your care. However, in general, cigarette smoke impairs sperm motiity and function, and stopping improves it. Whether it makes a difference with your genetic abnormality, I have no clue. ...Read more
Is it true that a lot of really beautiful, model type women are actually sterile because they have an extra chromosome?
No: There is no truth that beautiful women have chromosomal abnormalites more than the general population of women. ...Read more