Oncology & Cancer

Q&A: Genetic abnormalities and cancer risk

My mom was diagnosed with breast cancer. During her care, she was found to have a BRCA2 mutation. Her doctor suggested that my brothers and I get tested for this mutation, too. I am a 26-year-old woman, and I am not sure ...

Health

Q&A: Family health history information

My grandmother died of breast cancer at 70. My first cousin was recently diagnosed at 35. And another cousin also had breast cancer a few years ago. A friend suggested that I undergo genetic counseling to determine my risk. ...

Diseases, Conditions, Syndromes

Self-collected saliva samples prove effective for diagnosing COVID-19

Researchers at Memorial Sloan Kettering Cancer Center (MSK) have found that SARS-CoV-2 genetic material can be reliably detected in self-collected saliva samples at a rate similar to that of nasopharyngeal and oropharyngeal ...

Genetics

The genetics of side-effects

Henk-Jan Guchelaar knows all too well the serious problems that the side-effects of medication can cause. As a professor of clinical pharmacy at the University of Leiden in the Netherlands, he has spent the last two decades ...

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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.

This text uses material from Wikipedia, licensed under CC BY-SA