Manifestation of oxidative stress during pregnancy in women with chronic diseases of hepatobiliary system against the background of reproductive losses
Keywordsextragenital pathology, pregnancy, chronic disease of hepatobiliary system, systemic metabolic disorder
In the early stages of gestation the changes in the lipid peroxidation can lead to violations of regulatory and protective functions of biomembranes in pregnant women. The objective: to study the changes in the concentration of intermediate and final products of LPO during the first trimester of gestation in patients with early miscarriage against the background of chronic diseases of the hepatobiliary system. Materials and methods. 118 pregnant women in the first trimester of gestation (7-10 weeks), aged 22 - 39 y. o. (mean age 29.4 ± 2.7 years) have been examined.64 women (54.2%) were diagnosed with a risk of miscarriage, and 17 patients were diagnosed with involuntary miscarriage within 10-12 days. All women were diagnosed with non-viral and non-alcoholic chronic HBS paathology: hepatic steatosis had 38 patients (32.2%), 80 patients (67.8%) had non-alcoholic steatohepatitis; in 97 patients (82.2%) chronic non-calculous cholecystitis was diagnosed. The state of lipid peroxidation was assessed by the content of malonic dialdehyde spectrophotometrically, as well as diene conjugates in the blood The indicator of erythrocyte peroxide hemolysis was examined by the level of erythrocyte peroxide resistance. Results. A significant increase in intermediate and final products of lipid peroxidation in pregnant women with an unfavorable premorbid background in the form of chronic diseases of the hepatobiliary system and a history of reproductive losses. A significant increase of MDA and DC concentration was found at the risk of premature termination of pregnancy. The degree of PLO processes activation makes these parameters integrative criteria for the detection of systemic metabolic disorders during gestation in women with GBS extragenital pathology. Conclusion. During physiological pregnancy there is an accumulation of metabolites of lipid peroxidation, which is associated with an increase in basic metabolism in women and an increase in oxygen consumption from the blood.
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