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Doctor insights on: Monosomy 18p Syndrome

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My pregnancy was terminated in 2nd month and karyotyping of foetus shows monosomy of chromosome 20.What are the chances of its recurrence.

My pregnancy was terminated in 2nd month and karyotyping of foetus shows monosomy of chromosome 20.What are the chances of its recurrence.

Unlikely : Based on your age it is unlikely. You are at higher risk than other women your age but yet it is still unlikely you would have another baby with the same genetic issue. ...Read more

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Is turner's syndrome dominant or recessive?

Is turner's syndrome dominant or recessive?

Neither: Turner syndrome is not caused by a variation of a gene, or a mutation of a gene. Therefore, Turner syndrome is neither dominant or recessive, but instead is a type of aneuploidy. Aneuploidy means there is an abnormal number of chromosomes. Turner syndrome's type of aneuploidy is "monosomy X", which means having only one X chromosome, and no Y nor a second X chromosome. ...Read more

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What's the most common chromosomal abnormality syndrome in humans?

What's the most common chromosomal abnormality syndrome in humans?

Down syndrome.: The most common chromosomal abnormality in a newborn population was trisomy 21 (down), with an incidence of 1 in 730 live births. Abnormalities of the sex chromosomes (eg, monosomy x or turner, xxy, xyy, xxx) and structural balanced rearrangements also occurred frequently. Trisomy 16 is the most common aneuploidy in abortuses. Trisomy 18 (edwards), and 13 (patau) are most common in stillborns. ...Read more

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What are common conditions resulting from nondisjunction (ex. Down syndrome)?

What are common conditions resulting from nondisjunction (ex. Down syndrome)?

See below: There are multiple more common nondisjunction syndromes like down's syndrome (trisomy 21) including: trisomies 18, 13, 8, 9, 16 and monosomies like: chromosome 7 or turner's syndrome - monosomy x. But nondisjunction can happen to any of the chromosomes. The most recognized are down's syndrome and turner's syndrome. Most others are not compatible with life. ...Read more

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If I am 23yo, why would my doctor tell me I have a high risk of having a Down syndrome baby?

Down's syndrome: Women at risk are usually much older than you. Ask your doctor if there is an indication of a chromosomal abnormality, such as having an extra piece of a 21 chromosome attached to another chromosome or a family history of young women in your family giving birth to children with down syndrome. Your doctor should be able to explain why he feels your are at risk. ...Read more

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How often is the testing for Down syndrome during pregnancy wrong?

How often is the testing for Down syndrome during pregnancy wrong?

Chromosome analysis : obtained by amniocentesis or Chorionic Villous Sampling is diagnostic for Trisomy 21, other trisomies & monosomies. It is offered if the calculated statistical risk of DS from screening by blood tests & fetal ultrasounds + maternal age at EDD & family history reaches a cut-off point, often 1:270. This calculated risk method has an 80% detection rate & a 5% false-positive rate. ...Read more

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Is there a syndrome that reverses aging?

Is there a syndrome that reverses aging?

Not aware.: Dorian gray syndrome: exists only in literature. All of the contrary, on progeria pts are children that accelerate the rate of aging and look and have the diseases of old people and die very young from diseases of the elderly. ...Read more

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I think I have wilson's syndrome, what do I do now?

No enough info: if you have a sibling who has been diagnosedwith this condition, you need an evaluation By a physician knowledgeable in this rare autosomal recessive disorder like a metabolic or boochemical geneticist. ...Read more

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What are the actual causes of this syndrome?

Need More Info: I need more information to understand your question. Please ask the question using specific information about the syndrome you are asking about. ...Read more

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