Cytogenetic and immunogenetic analysis of recurrent pregnancy loss in women.

Karyotyping of 366 couples couples (732 individuals) with early recurrent pregnancy losses in anamnesis revealed chromosomal anomalies in 4.09% (30 cases)--within them 2.05% carry reciprocal translocations, in 0.82%--Robertsonian translocations, 0.55% carry numerical and structural gonosomal anomalies and in 0.27%--marker chromosome of unknown origin. The risk of early reproductive losses in women after excluding the cytogenetic component increases three fold if SNPs 1082GG, 592CC, 819CC of IL-10 gene and IFN-gamma +874AT or 874AA genotypes are present. ELISA-mediated detection of serum IL-10 and IFN-gamma showed a possibly significant increase of IFN-gamma in women with the history of early reproductive losses when compared to reproductively healthy women. We are proposing a complex cyto- and immunogenetic investigation in cases of early reproductive losses in women. One of the important issues of reproduction are the immunological mechanisms of pregnancy maintenance, where the disbalance in the genetically determined Th1- and Th2-cytokine levels may be one of the causes of early fetus elimination.