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Personalized genetic tests in Gynecology

Since the completion of sequencing of the human genome in 2001, advances in genetic technologies have led to identification of various gene variations that are associated with complex diseases. The consequent effect has been popularization of individual genetic testing in attempts to quantify future risks of certain diseases. But ample controversy still exists in scientific corridors about the usefulness of personalized genetic tests in a public health setting.

A genetic test examines the DNA of a person's cells. Genetic testing can identify abnormal genes to help determine what genetic traits individuals inherit from their parents, including risks of developing certain diseases. In addition genetic-errors, called mutations,may predispose individuals to certain diseases.

Some genetic tests are routinely offered in gynecology. Couples with specific genetically inherited diseases may be offered testing to determine the likelihood of passing the disease to their children.

And in pregnancy, testing is available to determine if the unborn baby has a genetic disorder such as Downs Syndrome. Other tests are also available to determine if a woman carries a genetic mutation that increases the risk of developing some diseases, such as breast or ovarian cancers.

Testing can also be done to identify genetic changes that may affect how drugs or other treatments work, in attempts to cure certain diseases.But the decision to have pre-emptive genetic testing should not be taken casually. The best approach is usually to undergo some genetic counseling prior to any testing. This should be done by a geneticist (an expert in genetic diseases), but your gynecologist can also provide some counseling.

Your family history profile may give clues about the possibility of an inheritable gynecological disease, further justifying testing.

Issues that arise after genetic testing may not always be easy to deal with. What do you do if you test positive for the risk of a serious disease? Specific interventions may not always be available, while other interventions may do unintended harm. Confidentiality must always be maintained, and there are laws against discrimination in employment or insurance. Positive results may necessitate testing other family members, which may not always be easy to handle especially in young families.

Majority of gynecological cancers are not caused by inherited genes. But if a disproportionate number of family members are affected, especially at young ages, genetic testing may be justified. If you test positive for a known disease causing gene, you may consider various interventions to reduce your futurerisk of developing the disease. You should be referred to a specialist skilled in interpretation of genetic testing and risk assessment for the specific disease.Interventions range from lifestyle modifications to individualized screening programs; while in some cases undergoing preventive surgery may be suggested.

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