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Doctor insights on: Y Chromosome Microdeletion

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Will stop smoking improve sperm quality for 36yo male with noa due to y chromosome azfc microdeletion? Plan for 2nd icsi.

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

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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

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What Are the effects of Inversion on Y chromosome on the individual and his children?

What Are the effects of Inversion on Y chromosome on the individual and his children?

Y inversion: Review of literature J Hered 1982 May - June: Inverted Y chromosome does not impede the production of normal sperm and does not predispose to non-disjunction of other chromosomes in the progeny. Complicated subject. Consult genetic expert. ...Read more

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What are men like if extra y chromosome?

What are men like if 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

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Does X chromosome sperm live longer than Y chromosome sperm? If so what is the lifespan difference?

Does X chromosome sperm live longer than Y chromosome sperm? If so what is the lifespan difference?

No evidence: There is no difference in the lifespan of different sexed sperm. The Y chromosome is trivially lighter than the X chromosome sperm which might help explain the fact that more males are conceived than females. ...Read more

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How is it possible for a blood test find a male "y" chromosome in a females blood after she got a kidney transplant?

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

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How we can improve Y chromosomes in semen?

How we can improve Y chromosomes in semen?

Not possible: This is something that you cannot alter or control. By the nature of sperm formation, the number of sperm cells carrying Y chromosomes is for all purposes equal to the number of sperm cells carrying X chromosomes. ...Read more

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What are some x and y chromosomal disorders?

What are some x and y chromosomal disorders?

A few: These are uncommon. You can have extra y chromosomes termed klinefelter's syndrome and you can have only one x termed turner's syndrome. One y only, is lethal. Extra x chromosomes can occur but usually are normal. ...Read more

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How many chromosome defects cause retardation?

Hundreds at least: We only know about a few hundred, probably thousands possible as each human is unique as are their choomasome array. ...Read more

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Where does the duplication of chromosomes occur?

In the gamete: Duplication of chromosomes occurs in the gametes. The gametes are the cells responsible for creation of the egg in women or sperm in men. The process is called meiosis. Duplication of chromosomes actually occurs in two separate phases of meiosis. ...Read more

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What happens if you are missing a sex chromosome?

What happens if you are missing a sex chromosome?

Causes a syndrome: Or infertility. Lack of an x chromosome in a female fetus usually results in a miscarriage, howevr some survive till birth and have turner syndrome. Lack of an x chromosome in males is associated with infertility. ...Read more

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What conditions are associated with chromosome #17?

What conditions are associated with chromosome #17?

A bunch: On the medium-sized chromosome 17, there are about 1000 genes, many of which can become broken and cause disease, including neurofibromatosis type 1, charcot-marie-tooth, li-fraumini syndrome, miller-dieker lissencephaly, fronto-temporal dementia, familial mediterranean fever, and many others. The genetics home reference has more info and good links <a href="http://ghr.Nlm.Nih.Gov/chromosome/17" r. ...Read more

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Which diseases and disabilities are linked to chromosome 17?

Which diseases and disabilities are linked to chromosome 17?

Unusual question: why do you want to know? Are you writing a homework assignment or has someone told you that you or someone you know has an abnormal chromosome 17? The answers come from the cytogeneticist who analyzed the chromosomes==not from a list of over a thousand genetic loci which might have mutations. ...Read more

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Is it true that man in even age produces more x chromosome than y?

Is it true that man in even age produces more x chromosome than y?

Unclear question: Are; you asking if more x than y chromosomes are produced for instance in sperm. Males have one x and one y while females have two x's therefore overall about 75% of chromosomes are x. However these are almost evenly divided in reproduction so that there are approximately the same number of males as females (actually about 108 males per 100 females). If you had something else in mind, re-ask. ...Read more