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Bipolar disorder and epilepsy could be linked

Bipolar disorder and epilepsy could be linked

t1larg.US.highest.bipolar.ratesmedwireNews: A preliminary study adds to evidence that bipolar disorder and epilepsy may be different expressions of common pathways.

In a convenience sample of hospital visitors, researchers found that epilepsy was significantly more common among first-degree relatives of patients with bipolar disorder than among controls. Likewise, the rate of bipolar disorder was significantly increased among relatives of epilepsy patients.

This implies “genetic or/and environmental relationships between the two disorders”, say study author Mohammed Jidda (University of Maiduguri, Nigeria) and co-workers in the Journal of Affective Disorders.

The team recruited 60 first-degree relatives of epilepsy patients, and asked them to complete the Mood Disorder Questionnaire. Based on the responses, 14.5% had bipolar disorder, compared with just 2.1% of 50 control hospital visitors who did not have a first-degree relative with bipolar disorder or epilepsy.

In addition, 15.2% of 40 first-degree relatives of bipolar disorder patients had epilepsy, assessed by applying International League Against Epilepsy criteria to the participants’ responses to a predesigned questionnaire. By contrast, just 2.0% of the control group were judged to have epilepsy.

The researchers caution that, although the findings are in line with other studies, their research was preliminary and hospital-based, and did not account for many potentially confounding environmental factors and behaviours.

They conclude: “Large family studies of multiple first-degree relatives of bipolar disorder and epilepsy (prelude to twin or/and gene studies) should be conducted to confirm the etiological overlap between the two disorders, resulting from a shared genetic susceptibility.”


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  1. I have epilepsy and would really like to learn more about this. I am 54 and started having seizures when I was 7.

  2. i suffer from both disorders

  3. I have both !! It would help to learn and know more!!

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