About: Genetics of post-traumatic stress disorder

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The genetic influences of post-traumatic stress disorder are not understood well due to the limitations of any genetic study of mental illness; in that, it cannot be ethically induced in selected groups. Because of this, all studies must use naturally occurring groups with genetic similarities and differences, thus the amount of data is limited. However, genetics play some role in the development of PTSD. Approximately 30% of the variance in PTSD is caused by genetics alone. For twin pairs exposed to combat in Vietnam, having a monozygotic (identical) twin with PTSD was associated with an increased risk of the co-twin's having PTSD compared to twins that were dizygotic (non-identical twins).

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  • The genetic influences of post-traumatic stress disorder are not understood well due to the limitations of any genetic study of mental illness; in that, it cannot be ethically induced in selected groups. Because of this, all studies must use naturally occurring groups with genetic similarities and differences, thus the amount of data is limited. However, genetics play some role in the development of PTSD. Approximately 30% of the variance in PTSD is caused by genetics alone. For twin pairs exposed to combat in Vietnam, having a monozygotic (identical) twin with PTSD was associated with an increased risk of the co-twin's having PTSD compared to twins that were dizygotic (non-identical twins). (en)
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  • The genetic influences of post-traumatic stress disorder are not understood well due to the limitations of any genetic study of mental illness; in that, it cannot be ethically induced in selected groups. Because of this, all studies must use naturally occurring groups with genetic similarities and differences, thus the amount of data is limited. However, genetics play some role in the development of PTSD. Approximately 30% of the variance in PTSD is caused by genetics alone. For twin pairs exposed to combat in Vietnam, having a monozygotic (identical) twin with PTSD was associated with an increased risk of the co-twin's having PTSD compared to twins that were dizygotic (non-identical twins). (en)
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  • Genetics of post-traumatic stress disorder (en)
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