The Correlation Between Toll-Like Receptor-5 Gene Polymorphism with Serum Level of Toll–Like Receptor-5 and Interleukin-6 and Interleukin-12 Response to Toxoplasma Gondii in Pregnant Women

Abstract

Background: Toxoplasma gondii is an obligate intracellular parasite that can cause variable clinical symptoms or can even be asymptomatic in immunocompetent individuals. The parasite is known to cause congenital diseases, ocular, and miscarriage in pregnant women. Primary infections are dangerous in pregnant women, that occurring usually asymptomatically, especially in the first trimester. Different rates of pregnant women are infected with Toxoplasma gondii in different countries. Primary infections in pregnant women result in transmission of Toxoplasma. gondii through the placenta to the fetus and then in congenital infections, and it is not the only reason for miscarriage, the activity of Toll -like receptors in defense against Toxoplasma gondii infections was observed such as Toll-like receptor5 molecule, and some cytokines (such as IL-6, and IL-12 ), maybe lead to abortion. Several single-nucleotide polymorphisms (SNPs) residing in genes encoding these receptors were reported as significant genetic modifications of Toll- like receptors and correlated with miscarriage. Objectives : Study the correlation of TLR-5 gene polymorphism in pregnant women infected with toxoplasmosis, and study association of TLR-5 polymorphisms with the serum level of TLR-5 and cytokines (IL-6, IL-12) in pregnant women infected with toxoplasmosis. Methods: The present Case-control study was conducted on 100 women, of which fifty pregnant women seropositive (IgG, IgM) for Toxoplasma gondii (Group1), fifty pregnant women seronegative (IgG, IgM) for Toxoplasma gondii (Group2), as a control group, collected in the period from January 2021 to December 2021.