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Researchers do know from twin studies that genetics plays a role in personality disorders. Environmental factors, such as childhood abuse, neglect and separation from caregivers, as well as brain abnormalities, emotion regulation, impulsivity, aggression and serotonin levels all play a role.ecause many personality domains are heritable, borderline personality disorder may be a result of a genotype interacting with adverse environmental factors. This would in turn lead to the expression of borderline symptoms or other dysfunctional personality traits.
GeneDx specializes in genetic testing for rare hereditary disorders. Our mission is to make clinical testing available to people with rare genetic conditions and their families. Most of our tests include full gene analysis by DNA sequencing, the gold standard of genetic testing. We invite you to explore our site, where you will find comprehensive information and all of our paperwork. Please note that GeneDx does not provide Direct-to-Consumer testing.