Genetic tests for Alzheimer's disease: Types and more

Although genetic testing for genes associated with Alzheimer's disease is available, healthcare professionals do not routinely use these tests when diagnosing this condition.
Genetic tests to identify genes associated with Alzheimer's cannot guarantee whether a person will develop the condition. Instead, they may reveal that a person has an increased risk of Alzheimer's.
According to the United Kingdom's Alzheimer's Society, genetic testing may be suitable when it seems likely that the condition is due to a single-gene change. For example, if there is a clear family history of the condition.
However, various factors can contribute to Alzheimer's disease. A negative test result for associated genes does not guarantee that a person will not develop Alzheimer's disease.
A 2023 article highlights the following types of genetic tests for Alzheimer's disease:
Predictive and pharmacogenetic tests are only available in research or clinical settings. However, susceptibility tests may be available directly to consumers. People typically buy these tests and carry them out without medical supervision.
Some people may find direct-to-consumer tests quicker and more convenient than carrying out the tests in a clinical setting. Although some people may feel peace of mind with a home test, the results also risk causing distress.
Additionally, working with a healthcare professional can help a person better understand the results of their test. They can also provide information about lowering the risk of the disease and what treatment options are available if the person starts showing symptoms.
Anyone interested in genetic testing for Alzheimer's disease can speak with a healthcare professional for more information, whether they want to know more about the types available or want help understanding the results of a home test.

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