['To determine whether genetic variability in the intron 1 region of the gamma 2 actin gene (enteric type) contributes to the development of obstetric complications.', 'The study involved 57 obstetric cholestasis and 133 preeclampsia patients and a control group of 115 healthy women in whom polymerase chain reaction detection of insertion-deletion polymorphism in the gamma 2 actin gene was investigated. Chi(2) analysis was used to assess genotype and allele frequency differences between the study groups.', 'The distribution of I and D alleles was equal in obstetric cholestasis (p = 0.652), preeclampsia (p = 0.609) and control groups. None of the gamma 2 actin gene genotypes were significantly overrepresented in obstetric cholestasis (p = 0.540) or preeclampsia (p = 0.680) groups compared to the control group.'] Is gamma 2 actin gene ( enteric type ) polymorphism associated with obstetric cholestasis or preeclampsia?