The associations with the MAOA and serotonin transporter loci are consistent with previous data suggesting associations with susceptibility to bipolar affective disorder.Am.J. Med.Genet.(Neuropsychiatr.Genet.)96:36-42, 2000
Associations of bipolar affective disorder in pooled male and female groups were found with the MAOA microsatellite in both the Caucasian (P < 0.02) and the Japanese (P < 0.02) meta-analyses.
These data do not support the association of MAO-A or B with bipolar affective disorder but do demonstrate that undetected population stratification can be an important source of bias in case-control studies.