Question 1

what is the difference between angelman syndrome and prader-willi syndrome?

Accepted Answer

Angelman vs. Prader: Prader-Willi and Angelman syndromes are the two  genetic disorders of the 15q11 chromosomal region. People with Prader-Willi inherited the abnormal chromosome from father, while those with Angelman syndrome inherited from mother.

Question 2

what are the tests for prader-willi syndrome?

Accepted Answer

See below:: High resolution chromosomal analysis; fish (stands for fluorescence in situ hybridization, often done at the same time as a chromosome analysis); and new molecular tests: dna methylation test (confirms or rules out pws as a diagnosis, with over 99% accuracy);dna polymorphism studies (done to detect upd-uniparental disomy, requires blood samples from both parents and child for best accuracy).

Question 3

how do you diagnose prader willi syndrome?

Accepted Answer

Dysmorphic features: Children with prader-willie syndrome have dysmorphic features and are hypotonic at birth. Initially have poor weight gain and later on develop obesity ' short stature, hypogonadism and developmntal delay.

Question 4

what is the definition or description of: prader willi syndrome?

Accepted Answer

PWS: Genetic multisystem disorder characterized during infancy by lethargy, diminished muscle tone, feeding difficulties, poor weight gain and growth hormone deficiency. In childhood, features of this disorder include short stature, small genitals and an excessive appetite because affected individuals do not feel satisfied after completing a meal (satiety), leading to obesity and other disorders.

Question 5

can you tell on a karyotype if someone has prader-willi syndrome?

Accepted Answer

Sometimes: Prader-willi syndrome can be caused by a deletion in chromosome 15 that is visible on routine cytogenetic analysis. Other patents have a submicroscopic deletion that is only visible by fish analysis or cgh microarray. Still others have the syndrome because of uniparental disomy detectable by a methylation study.

Question 6

is there neonatal testing for prader-willi syndrome?

Accepted Answer

Yes: The test for prader-willi is from blood, doing chromosomes with fish for the specific deletion of 15 (60-70% of cases) or looking at dna methylation that shows altered imprinting of the prader-willi/angelman region on chromosome 15 (~30% of cases). Neonatal symptoms include significant low muscle tone (hypotonia), often with need for feeding tubes, hard to distinguish from neuromuscular disorders.

Question 7

tips on prevention to prader-willi syndrome?

Accepted Answer

No prevention : Unfortunately there are no ways to prevent prader-willi syndrome.  This is a genetic syndrome with an abnormality on the 15th chromosome.  If there is a concern for future children, genetic consultation will be a must.

Question 8

best treatment for someone who has prader-willi syndrome?

Accepted Answer

Supportive: Growth hormone, a structured environment, airway pressure for the sleep apnea. Sooner or later, we'll find the hormonal basis of the food cravings and be able to fix it. Good luck.

Question 9

how much does treatment help for someone who has prader-willi syndrome?

Accepted Answer

PRADER-WILLI: Sx are failure to thrive, hypotonia, uncontrollable hyperphagia, obesity, short stature with androgen deficiency.Cryptorchidism is corrected early, androgen replacement by injections are done  for delayed puberty. Treatments are all directed to restore hypogonadism.

Question 10

is prader willi syndrome hereditary?

Accepted Answer

Yes and no: Prader-willi syndrome involves early low tone with later overeating and obesity since the person is never full. It is genetic, with ~70% of cases having deletion (missing part) of chromosome 15 and the others having altered parental patterning (genomic imprinting). Although always due to a genetic change, it is rarely inherited and has a low recurrence risk for parents of an affected child.

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

Doctor answers about:

Prader willi angelman syndrome test

A member asked:

What is the difference between angelman syndrome and prader-willi syndrome?

A member asked:

What are the tests for prader-willi syndrome?

A member asked:

How do you diagnose prader willi syndrome?

A member asked:

What is the definition or description of: prader willi syndrome?

A member asked:

Can you tell on a karyotype if someone has prader-willi syndrome?

A member asked:

Is there neonatal testing for prader-willi syndrome?

A member asked:

Tips on prevention to prader-willi syndrome?

A member asked:

Best treatment for someone who has prader-willi syndrome?

A member asked:

How much does treatment help for someone who has prader-willi syndrome?

A member asked:

Is prader willi syndrome hereditary?

HealthTap Online Primary Care Doctors Accepting New Patients

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?