Top
20
Doctor insights on: Usher Syndrome Genetics Birth Defects

Share
1

1
Is clinodactyly a genetic disorder, birth defect?

Is clinodactyly a genetic disorder, birth defect?

Yes, but .....: Clinodactyly is a curve of one or more fingers, which is pretty common, especially for the pinkies, and no big deal at all. Technically it's a minor birth defect and usually not a sign of any problem. But sometimes it's one component of a rare genetic syndrome, like wahab syndrome (http://omim.Org/entry/615170) or a more common one, like down syndrome. I have a little clinodactyly myself! ...Read more

Genetic (Definition)

From a medical standpoint, "genetic" refers to the potential heritability of various medical conditions. While some conditions are inevitable (at some point in one's life) as a consequence of simple genetic heritability (eg huntington's disease), a large number of medical conditions (including all behaviorial health disorders) are the expressed final pathway of a ...Read more


2

2
How is the genetic abnormality patau syndrome inherited?

How is the genetic abnormality patau syndrome inherited?

Non-disjunction.: The majority of cases of the lethal patau or trisomy 13 syndrome are caused by nondisjunction (47, +13) related to advanced maternal age. Robertsonian translocations of either parent can increase the risk for that couple, although most affected embryos die in utero. ...Read more

See 1 more doctor answer
3

3
What causes turner syndrome, noonan syndrome, & the rare klippel-fell syndrome? What happens during fetal development that causes these conditions?

What causes turner syndrome, noonan syndrome, & the rare klippel-fell syndrome? What happens during fetal development that causes these conditions?

A genetic accident: During formation of the egg or sperm can leave out an x chromosome in either one. A fetus whose genetic make-up includes the germ cell missing a chr. X has turner syndrome. One of 8 different genetic mutations is passed on to a fetus by 1 parent or happens spontaneously to cause noonan syndrome. 2 related genetic mutations are passed on to the fetus by 1 parent to cause klippel-feil syndrome. ...Read more

4

4
What chromosomal mutation results in alagille syndrome?

What chromosomal mutation results in alagille syndrome?

ALGS: Alagille syndrome (algs) is a complex multisystem disorder involving primarily the liver, heart, eyes, face, and skeleton. The two genes in which mutations are known to cause algs are jag1 and notch2. Mutations in jag1 are known to cause about 94%-96% of cases of algs. Mutations in notch2 are known to cause algs in 1%-2% of individuals. ...Read more

See 1 more doctor answer
5

5
Is turners syndrome a genetic disorder?

Is turners syndrome a genetic disorder?

Yes: Most females are born with 2 x chromosomes. Ts is a disorder resulting from missing one x chromosome or some part of it in the cells of the body. It is a disorder exclusive to females. Those with ts are born with it. Manifestations vary depending on the genetics. Small stature is one feature most girls have in common with each other. ...Read more

6

6
Could diet influence birth defects?

Could diet influence birth defects?

Yes: Insufficient folate (folic acid) in the mother's diet has been linked to neural tube birth defects. ...Read more

7

7
Are cerebral palsy, osteogenesis imperfecta or downs syndrome passed on to your children?

Are cerebral palsy, osteogenesis imperfecta or downs syndrome passed on to your children?

No,no,maybe: CP is an injury to the developing nervous system,it is not inherited. There are several forms of Osteogenisis imperfecta and their inherance varies.some do not survive infancy, some require an OI gene from both parents.Down syndrome males are usually sterile, females can reproduce and just under 50% of their babies would be DS. ...Read more

8

8
Is kabuki syndrome genetic?

Is kabuki syndrome genetic?

Kabuki syndrome: is a genetically inherited disorder. Here is a link for more information, resources and support: http://ghr.nlm.nih.gov/condition/kabuki-syndrome ...Read more

9

9
Is marfan's syndrome a genetic mutation?

Is marfan's syndrome a genetic mutation?

Yes: Yes it is a mutation in the fbn1 gene on chromosome 15. This gene is responsible for providing the instructions for making a protien called fibrillin which becomes part of microfibrils. Microfibrils are important for providing the strength and flexibility of connective tissue. Connective tissue provides strength and flexibility to bones, ligaments, muscles, blood vessels and heart values. ...Read more

See 1 more doctor answer
10

10
Can genetic testing prevent birth defects in pregnancy?

Can genetic testing prevent birth defects in pregnancy?

Nope.: Genetic prenatal testing can detect many chromosomal or microscopic dna defects - but it cannot prevent birth defects! 2-4% of all newborns will have a minor or major birth defect and the vast majority of those have unknown genetic underpinnings at this time, although many of us are working to change that. Take Folic Acid 1-5 mg daily to prevent 75-95% of major neural/cardiac fetal anomalies! ...Read more

See 2 more doctor answers
12

12
What birth defects accompany wilms' tumor?

What birth defects accompany wilms' tumor?

Many can: Wilms' tumor (a childhood kidney cancer) can be a part of other congenital syndromes such as wagr syndrome, denys-drash syndrome, and beckwith-wiedemann syndrome. Other accompanying birth defects can include lacking the colored part of the eye, ambiguous genitalia, intellectual disability, large birth size, large tongue, intestinal malformation, and large eyes. Wilms' tumor can also occur alone. ...Read more

See 1 more doctor answer
13

13
Is treacher collins syndrome a genetic disease?

Is treacher collins syndrome a genetic disease?

Yes: In some patients it is a new mutation, while in others it is passed down from a parent. ...Read more

See 1 more doctor answer
14

14
Can FAS (fetal alcohol syndrome) be inherited?

Can FAS (fetal alcohol syndrome) be inherited?

Yes and no.: The predisposition for alcoholism is inherited, however fetal alcohol syndrome only occurs when the fetus is exposed to maternally ingested alcohol during pregnancy and as such is not inherited, rather is a teratogen exposure that is entirely preventable. ...Read more

15

15
Is hemophilia linked to patau syndrome?

Is hemophilia linked to patau syndrome?

No, not linked.: Hemophilia a and hemophilia b are caused by mutations in genes f8 and f9, respectively, on the x chromosome. Patau syndrome results from trisomy 13 (the presence of an extra #13 chromosome). ...Read more

See 1 more doctor answer
16

16
What is the average lifespan of baby born with trisomy 13, patau syndrome?

What is the average lifespan of baby born with trisomy 13, patau syndrome?

Days/weeks.: Stillbirth (see picture) is very common. Of liveborns, 80% of affected infants die within the first month of life; only 5% survive the first six months. Severe intellectual disability, seizures, and failure to thrive are noticeable in survivors over 1 year of age. No interventions for fetal benefit are ethically justifiable during pregnancy (no cesarean section, no fetal monitoring indicated). ...Read more

17

17
Are congenital defects the same as birth defects?

Are congenital defects the same as birth defects?

Yes: Here is a primer on the terms congenital refers to being present at birth. Anomalies, abnormalities, defects are often used interchangeably. Not all are genetic or familial. Malformation and deformation mean different things. Malformation is an anomaly due to abnormal formation of a structure. Deformation is a change in a structure due to forces like pressure, eg, in cases of low amniotic fluid. ...Read more

See 4 more doctor answers
18

18
Do amniotic sac disorders cause birth defects?

Do amniotic sac disorders cause birth defects?

Amniotic Fluid: Best discussed with your ob. Too much or too little amniotic fluid is associated with abnormalities in development and pregnancy complications. Differences in the amount of fluid may be the cause or the result of the problem. ...Read more

See 1 more doctor answer
19

19
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

Dr. Nikolaos Zacharias
841 doctors shared insights

Congenital Abnormalities (Definition)

Abnormalites that are present at birth. Also known as birth defects. For example- cleft palate is a congenital abnormalities. Another example congenital heart disease is the presence of a ...Read more


Dr. Nikolaos Zacharias
478 doctors shared insights

Birth Defects (Definition)

A physical or biochemical abnormality that is present at birth- it may be inherited or ...Read more