News tagged with genetic testing

Related topics: genetic variation , patients , ovarian cancer , breast cancer , genetic information

Study identifies genetic change in autism-related gene

A new study from Bradley Hospital has identified a genetic change in a recently identified autism-associated gene, which may provide further insight into the causes of autism. The study, now published online in the Journal of ...

Aug 28, 2014
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New DNA test for diagnosing diseases linked to childhood blindness

Researchers in the United Kingdom have demonstrated that advanced DNA testing for congenital cataracts can quickly and accurately diagnose a number of rare diseases marked by childhood blindness, according to a study published online today in Ophthalmology, the journal of the American Academy o ...

Aug 21, 2014
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Online avatar helps demystify breast cancer risk

(Medical Xpress)—About one in eight American women will be diagnosed with breast cancer during her lifetime – more than 200,000 this year alone. A simple blood test can determine if a woman faces increased ...

May 30, 2014
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Genetic testing

Genetic testing allows the genetic diagnosis of vulnerabilities to inherit diseases, and can also be used to determine a person's ancestry. Normally, every person carries two copies of every gene, one inherited from their mother, one inherited from their father. The human genome is believed to contain around 20,000 - 25,000 genes. In addition to studying chromosomes to the level of individual genes, genetic testing in a broader sense includes biochemical tests for the possible presence of genetic diseases, or mutant forms of genes associated with increased risk of developing genetic disorders. Genetic testing identifies changes in chromosomes, genes, or proteins. Most of the time, testing is used to find changes that are associated with inherited disorders. The results of a genetic test can confirm or rule out a suspected genetic condition or help determine a person's chance of developing or passing on a genetic disorder. Several hundred genetic tests are currently in use, and more are being developed.

Since genetic testing may open up ethical or psychological problems, genetic testing is often accompanied by genetic counseling.

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