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Doctor insights on: Trisomy Chromosome 21

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What are the chromosome defects affecting chromosome 10, 13 and trisomy 21?

What are the chromosome defects affecting chromosome 10, 13 and trisomy 21?

Many: There are numerous disorders that can happen with abnormalities of chromosomes 10 and 13. Too many to list here. Trisomy 21 means the person has an extra chromosome 21 and this is more commonly known as Down's syndrome. There are many possible phenotypic findings with this disorder, again too many to list here including physical characteristics, heart , hearing, vision, skeletal, developmental.... ...Read more

Trisomy (Definition)

Ordinary chromosomal traits require a pair of chromosomes to determine the traits. Occasionally, as a mistake in cellular division, there is a tripling of one of the chromosomes. When these occur, they usually cause unpleasant, and sometimes deadly conditions in the inheritor of these traits (e.g. Down's). Many we do not know about as they are ...Read more


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Is it more lethal to have a trisomy of autosomes or of sex chromosomes?

Is it more lethal to have a trisomy of autosomes or of sex chromosomes?

Autosomes: All but trisomy 21 will kill one before or soon after birth. People who I know suspect I have XYY; this, XXY, and XXX are famously survivable and some say XYY and XXY offer plusses. ...Read more

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Are chromosomal abnormalities, such as trisomy, confined to certain parts of the body?

Are chromosomal abnormalities, such as trisomy, confined to certain parts of the body?

Usually: The vast majority of trisomy patients will have the trisomy in every cell of their body. There is a small percentage that will be what is called a mosaic, where the trisomy effects a fraction of the cells. In theory the trisomy starts in one group of cells and continues to all that develop after the change, but another normal line also produces normal tissues. The amount affects the outcome. ...Read more

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Can you tell me how can the chromosomal conditions , trisomy x, xyy syndrome and turner syndrome differ?

Can you tell me how can the chromosomal conditions , trisomy x, xyy syndrome and turner syndrome differ?

Good online sites: Xxx and xyy have relatively little impact on those who have them and are usually incidental findings -- this is actually true despite the hoopla over xyy. I have three physician colleagues who have turner's xo and do fine. http://ghr.nlm.nih.gov/ is really good (thanks uncle sam). ...Read more

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Chromosomes,POC/Fetal loss.Each metaphase was trisomy 14.Results:47,XX,+14. Is any tretmant for that?Who having abnormal Chromosomes me or my husband

Chromosomes,POC/Fetal loss.Each metaphase was trisomy 14.Results:47,XX,+14. Is any tretmant for that?Who having abnormal Chromosomes me or my husband

Testing: You and your husband can undergo genetic testing to see if either of you are a carrier of any genetic mutations that are likely to be passed on during conception. This is a blood test for both of you. In most cases the parents are not carriers and the genetic mutation that occurred during conception was spontaneous and not likely to recur. ...Read more

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27 years couple miscarried second times.biopsy=trisomy 12,47 chromosomes.chance of happening again?how to treat?why it happens?tell me briefly plz

27 years couple miscarried second times.biopsy=trisomy 12,47 chromosomes.chance of happening again?how to treat?why it happens?tell me briefly plz

This is a random: occurrence which can happen to anyone. How soujld get genetic counseling. How may ask for fetal blood analysis in a future pregnancy at 2 to 10 weeks with results in 3 to y days, so you will uno has to work the entire pregnancy. Hour deserved this information. How may call the genetic counselor listed on the chromosomal report for a full discussion, but an in-person consult is best.. ...Read more

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Can comprehensive chromosome screening (CCS) in IVF screen for (1) partial trisomy, (2) unbalanced translocation, and (3) balanced translocation? Does testing parental karyotyping before CCS help?

Can comprehensive chromosome screening (CCS) in IVF screen for (1) partial  trisomy, (2) unbalanced translocation, and (3) balanced translocation? Does testing parental karyotyping before CCS help?

Test for Aneuploidy: Aneuploidy is the term used to describe any embryo with either too many or too few chromosomes. It is the cause of greater than 60% of miscarriages, as well as the most likely reason that patients do not get pregnant from an IVF cycle. The purpose of CCS is to analyze, select and transfer only embryos that do not have abnormalities in their number of chromosomes. A genetic consult is needed; ...Read more

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Hx of 4 diagnosed chromosomal pregnancies in a row trisomy 22, 18, 13 & mono 21. I'm 39 yrs old. Is there hope of a normal pregnancy using my own eggs?

Hx of 4 diagnosed chromosomal pregnancies in a row trisomy 22, 18, 13 & mono 21. I'm 39 yrs old. Is there hope of a normal pregnancy using my own eggs?

Hope yes, but..: Remember, the ancient greeks said that hope was the last evil in pandora's box.. Your history sounds horrible and I am very sorry. There is always a chance of normal pregnancy with your own eggs, however i would recommend genetic counseling and ivf with preimplantation genetic diagnosis in your case (or donor eggs). Take Folic Acid 1-5 mg daily and best of luck! ...Read more

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What is another name for trisomy 21?

What is another name for trisomy 21?

Down Syndrome: This syndrome was named for j langdon down, a physician who ran a foundling hospital in britain many years ago. He wrote up one of the first recognized descriptions of the common features of the syndrome published in a medical journal. ...Read more