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Doctor insights on: Down Syndrome Lion

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Why is my baby down syndrome?

Why is my baby down syndrome?

Chromosome defect: Ds is one of the more common chromosome(c) defects that can survive pregnancy (many others miscarry).Eggs are supposed to have a single 21c & combine with the 21 from dads normal sperm.In ds the pair of moms 21c +dad's 21 creates a baby with the three 21c in all tissues.This extra material confuses the creation of body parts causing ds..Various prenatal tests can pick up signs early on. ...Read more

Dr. Kathryn Akin
641 doctors shared insights

Down Syndrome (Definition)

Down syndrome is the classic presentation clinically of the congenital malformation syndrome also known as Trisomy 21. Classic features may include simian creases, epicanthal folds, upslanting palpebral fissures, flat nasal bridge, hypertelorism, low set ears, endocardial cushion defects of the heart, atlanto-axial joint instability, blood ...Read more


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Why does Down syndrome happen?

Why does Down syndrome happen?

Mistake in chromosom: During the formation of normal eggs or sperm the chromosome(c) pairs are supposed to split leaving one of each in the egg/sperm.At conception the joining of egg/sperm brings together the pair & as tissue grows it has the proper number in each cell. With ds the egg has a pair of 21c and at conception a triple 21 is created. All cells derived after will have an extra 21 & become a ds child. ...Read more

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How can you inherit down syndrome?

Depends on parents: An unaffected mother or father could have a balanced(normal) set of chromasome material where a piece of one 21 chromasome is stuck on another.If the egg or sperm had the normal 21 and an extra 21piece hidden on another chromasome, they could pass it to the baby. It only takes an extra piece of 21 to cause ds.It is important to study ds to verify type, as translocation ds can recur each pregnany. ...Read more

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Down syndrome is autosomal dominat?

Down syndrome is autosomal dominat?

No autosomal: Down syndrome happens when an extra 21 chromosome is present in all the cells of the body. It happens before conception when the donor egg fails to shed one of its 21 chromosomes in the formation of the egg & the male 21 joins the female pair & creates an embryo with 3 number 21's. It has nothing to do with traits or mutations in the gene code. ...Read more

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What are the symptoms of down syndrome?

See below: Flat face, hypotonia, and intellectual disability. One third of patients develop congenital heart defect(s). ...Read more

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What are the problems of down syndrome?

Many: Increased incidence of congenital heart disease, gastrointestinal problems such as atresia and hirschsprung's, nutrition with gasroesophageal reflux and aspiration, hypo or hyperthyroidism, and neurologic; mental retardation, joint laxity and hypotonia. Some down syndrome have few problems, and some many problems. ...Read more

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How you tell if someone has down syndrome?

How you tell if someone has down syndrome?

Doc should recognise: Down syndrome is one of the most recognizable patterns of any chromosome defect ; one that most doctors can recognize. There are a variety of internet sites with lists of features. If you have concerns you should share them with your physician.A chromosome test can confirm or exclude the diagnosis. ...Read more

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What are the different causes down syndrome?

What are the different causes down syndrome?

Downs syndrome: Trisomy 21 when there is an extra chromosome at 21, mosaicism when some cells have trisomy and others not, robertson translocation [n which long arm of 21 chromosome is attached to another chromosome often chromosome 14. ...Read more

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Why is Down syndrome more maternally inherited?

It isn't...: Maternally inherited, unless the mother has down's syndrome. Inherited means it's passed from generation to generation. When down's occurs, the egg has two copies of chromosome 21 instead of the usual one copy, so when the egg is fertilized, it ends up with three copies instead of the usual two. This is a new event, not an inheritance. The risk of down's syndrome increases with maternal age. ...Read more

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