Year: 1987 Source: Nature, v.325, no.26, (February 1987), p.755 SIEC No: 19880097

Manic depressive illness (bipolar affective disorder) is relatively common, affecting between 0.5 & 1.0% of the general population. A gene predisposing to manic depression has been found close to the 2 DNA marker genes on chromosome 11. Although researchers do not consider these markers useful for screening, they feel their discovery may lead to further insights into depressive illnesses. (NBB)