EICOSAPENTAENOIC ACID IN THE PERIPHERAL BLOOD OF PREGNANT WOMEN IN THE FIRST TRIMESTER WITH CYTOMEGALOVIRUS INFECTION DEPENDING ON THE SPECIFIC TITRE OF IgG ANTIBODIES TO CYTOMEGALOVIRUS

Author(s):  
Наталия Ишутина ◽  
Nataliya Ishutina ◽  
Ирина Андриевская ◽  
Irina Andrievskaya ◽  
Инна Довжикова ◽  
...  
2019 ◽  
Vol 4 (2) ◽  
pp. 16-22
Author(s):  
N. A. Ishutina ◽  
I. A. Andrievskaya ◽  
I. V. Dovzhikova ◽  
N. N. Dorofienko ◽  
N. N. Gorikov

Background. Reactivation of cytomegalovirus infection (CMV) during pregnancy is associated with manifestation of oxidative stress, both in the maternal peripheral blood and in the placental tissues. One of the effects of oxidative stress is a disturbance of the metabolism of fatty acids, which leads to the initiation of the apoptotic cascade, the death of trophoblast cells and, as a result, tissue or organ dysfunction, promoting to the development of a pathological condition. However, an analysis of the current literature indicates insufficient information on this problem in the villous chorion of the placenta in CMV infection.Aims. To study the relationship between the oxidative stress development and fatty acid imbalance in apoptosis of trophoblast cells during reactivation of CMV in the first trimester.Material and methods. We examined peripheral blood, urine, a homogenate of the villous chorions from 35 pregnant women with CMV reactivation within 9–11 weeks of pregnancy and from 30 pregnant women without CMV of the same gestation period. We studied levels of IgM and IgG for cytomegalovirus, low-avid IgG antibodies to cytomegalovirus (avidity index), phospholipase A2 content, fatty acid content, number of apoptotic trophoblast cells, fatty acid peroxide content and catalase activity. Sampling and analysis of material from pregnant women was conducted in 2016–2018.Results. The reactivation of CMV in the first trimester of pregnancy led to an increase content in the phospholipase A2 in villous chorion by 2.5 times, by 1.5 times of fatty acid peroxides, 1.5 times arachidonic acid, palmitic acid by 1.3 times, number of trophoblast cells in a state of apoptosis by 4.7 times and decrease catalase activity by 1.44 times.Conclusion. As a result of the study, cytomegalovirus-dependent induction of oxidative stress and imbalance of fatty acids triggering apoptosis of trophoblast cells was identified. Increased apoptosis initiates inflammation and destructive processes in the early placenta.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Estefania Aparicio ◽  
Carla Martín-Grau ◽  
Carmen Hernández-Martinez ◽  
Nuria Voltas ◽  
Josefa Canals ◽  
...  

Abstract Background During pregnancy a high amount of fatty acids (FA) is necessary to meet foetus demands, which vary during gestation. The present study describes the changes in maternal fatty acid concentrations during pregnancy in a sample of pregnant women. Methods This is a longitudinal study of 479 pregnant women who were monitored from the first trimester to third trimester of pregnancy. Data on maternal characteristics were recorded and a serum sample was collected in each trimester. The fatty acid profile (saturated (SFA: total, lauric acid, myristic acid, palmitic acid, stearic acid), monounsaturated (MUFA: total, palmitoleic acid, oleic acid) and polyunsaturated fatty acids (PUFA: total omega-6 (n-6), linoleic acid, dihomo-γ-linolenic acid, arachidonic acid (AA), total omega-3 (n-3), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA)) was analysed with a gas chromatography-mass spectrometry combination. Results From the first trimester to third trimester of pregnancy, a significant increase in total SFA, total MUFA and total n-6 PUFA was found. (p < 0.001). Nevertheless, the serum concentration of arachidonic acid (AA), eicosapentaenoic acid (EPA) and total n-3 PUFA decreased during gestation (p < 0.001). A statistically non-significant result was observed for the docosahexaenoic acid (DHA) serum concentration between the first and third trimesters of pregnancy. Significant correlations were observed between each total fatty acid concentrations of the first and third trimesters. Conclusion The circulating serum concentration of SFA, MUFA and n-6 PUFA increases during pregnancy, whereas essential fatty acids such as AA and EPA decrease, and DHA remains unchanged. Further research is necessary to understand the role played by FA throughout gestation.


Author(s):  
Инна Довжикова ◽  
Inna Dovzhikova ◽  
Михаил Луценко ◽  
Mikhail Lutsenko ◽  
Ксения Петрова ◽  
...  

The aim of the work is to assess the effects of cytomegalovirus infection on the 20α-hydroxysteroid dehydrogenase activity in the villous chorion syncytiotrophoblast in the first trimester of pregnancy. The materials for the study included 48 villous chorions samples taken during spontaneous abortions at 8th–10th weeks of gestation from women with reactivation of cytomegalovirus infection (the main group). The control group included 35 villous chorions samples from pregnant women with chronic cytomegalovirus infection in the latent stage taken at medical abortions at the same stage of gestation. The results of women’s examination were studied taken into account the activity of cytomegalovirus infection by immunoassay by detection of IgM antibodies or by 4 times and more increase of IgG antibody titers in the paired serums in dynamics in 10 days. The activity of 20α-hydroxysteroid dehydrogenase was assessed by the histochemical method. Quantitative evaluation of the reaction products was carried out on sections under the microscope MT (Japan) connected to software-hardware complex «SCION Corporation» (USA). At histochemical specimen of villous chorion of pregnant women who had a reactivation of cytomegalovirus infection during pregnancy (main group), there was a decrease of cytophotometric parameter of 20α-hydroxysteroid dehydrogenase activity till 30.1±2.12 pixels/μm2 (p<0.001) compared with the control group. The decrease in the reaction activity in syncytiotrophoblast indicated a decrease in the contents of 20α-dihydroprogesterone in placenta, which contributed, in our opinion, to spontaneous abortion.


Author(s):  
Наталия Ишутина ◽  
Nataliya Ishutina ◽  
Ирина Андриевская ◽  
Irina Andrievskaya

The aim is to study the features of changes of free-radical status, antioxidant protection and morphologic changes of erythrocytes of the peripheral blood of pregnant women of the first trimester with exacerbation of cytomegalovirus infection (CMVI). 35 pregnant women with exacerbation of CMVI in the first trimester of gestation (the main group) and 35 pregnant women without this pathology of the same age and term as the patients of the main group were examined. Erythrocytes of the venous blood stabilized by heparine as well as blood plasma became the material of the study. There has been studied the condition of lipid peroxidation (LP) by the contents of diene conjugates and active products reacting with thiobarbituric acid; the state of nonenzymatic antioxidant protection by the contents of α-tocopherol as well as of the enzyme of erythrocytes (superoxide dismutase); morphologic changes of erythrocytes. It was found out that the exacerbation of CMVI in the first trimester of pregnancy is associated with activation of LP processes which include modification of not only primary, reverse stages of this process – the increase of the concentration of diene conjugates (p<0.001), but they lead to an increased formation of secondary active products reacting with thiobarbituric acid (p<0.001), intensifying the destructive action on the membrane of erythrocytes. Primary and secondary products of LP against the decrease of concentration of erythrocyte superoxide dismutase (p<0.001) and α-tocopherol (p<0.001) are accumulated in increasing concentrations and become potential factors of erythrocytes damage causing their functional and metabolic inferiority. Metabolic disturbances and damages of cellular membranes lead to the increase of population of echinocytes, target-like and degenerative forms of erythrocytes, which can be accompanied by a high probability of intravascular hemolysis and contribute to the development of hemic hypoxia complicating the infectious process and the course of pregnancy. Within the present hyperoxidation and suppression of antioxidant protection that lead to the worsening of the rheology of blood, women with exacerbation of CMVI in the first trimester of pregnancy should be prescribed the medicine stabilizing the lipid exchange.


Author(s):  
N. A. Ishutina ◽  
I. А. Andrievskaya ◽  
I. V. Dovzhikova ◽  
N. N. Dorofienko

Introduction. It is now generally acknowledged that cytomegalovirus infection (CMVI) is one of the main causes of miscarriage. However, the mechanism of this effect has not been sufficiently studied. At the same time, the influence of acids of the ɷ-3 family and α-tocopherol (αTP) on the placentation process through a pro-angiogenic action is shown.Aim. To study the concentration of αTP and ɷ-3 family acids in the peripheral blood and establish their role in miscarriage in CMV-seropositive women with CMVI reactivation.Materials and methods. A case-control study included 64 women in the first trimester of pregnancy (7-10 weeks), of which 36 were CMV-seropositive with CMVI reactivation (main group) and 28 were CMV-seronegative (control group). CMVI was diagnosed by the determination of class M and G antibodies by ELISA, as well as CMV DNA detected by PCR. The concentration of ɷ-3 acids of the family (eicosapentaenoic – EPA, docosahexaenoic – DHA) in blood serum was studied by capillary gas-liquid chromatography (J.P.Carreau, J.P.Dubacq). The αTP concentration was determined by the fluorometric method (L.G.Hansen, W.I.Warwich).Results. In women of the main group, a significant (p<0.001) decrease in the concentration of αTP to 1.32±0.025 μg/mL was observed in the peripheral blood compared to the same indicator in the control group (1.49±0.029 μg/mL). At the same time, the levels of EPA and DHA were also statistically significant (p<0.001) lower than the same indicator in the control group and amounted to 1.09±0.012 and 6.09±0.015%, respectively (in the control, 1.29±0.071 and 8.80±0.071%, respectively). Conclusion. The obtained results of the study allow us to establish the important role of disorders in the content of α-TF, EPA and DHA in the pathogenesis of miscarriage during reactivation of CMVI in the early periods of gestation, which can serve as a basis for expanding diagnostic and therapeutic measures in this pathology of pregnant women.


2018 ◽  
pp. 71-77
Author(s):  
N. P. Bondarenko ◽  
W. P. Lakatoch ◽  
P. W. Lakatoch

The infectious process caused by parvovirus B19 should be considered as a stressor effect on the body, which can significantly modulate its reactivity. In 129 infected pregnant women and 16 women with physiological pregnancy in I, II and III trimesters, the parameters characterizing the functional state of neutrophils (Nph) and monocytes (Mc) of peripheral blood were investigated. In infected pregnant women was observed an increase of the number of phagocytic cells and an increase of the intra cellular oxygen-dependent metabolism of Nph and Mc. In this case, through out the course of pregnancy, a decrease in the absorption capacity of phagocytes was noted in infected patients. In the I–III trimesters of pregnancy in women with B19 infection, the spontaneous and induced NBT-tests of Nph and Mc peripheral blood were increased in comparison with the control, but a significant difference was established only for blood Nph in women of group I. The greatest deviations from the control indicators were recorded in the first trimester of pregnancy. More pronounced above changes of the functional state of Nph and Mc were determined in infected patients with clinical complications of pregnancy.


F1000Research ◽  
2019 ◽  
Vol 8 ◽  
pp. 1735
Author(s):  
Salih Elbushra ◽  
Mohammed Seed Ahmed ◽  
Albadawi Abdelbagi Talha ◽  
Tarig A. Gamar ◽  
Elhadi A. Ahmed

Background: Human cytomegalovirus (HCMV) is a major cause of congenital infections. It is more widespread in developing countries and communities with low socioeconomic status. The infection can cause pregnancy loss or spontaneous abortion. Tests are available for the detection of HCMV IgG and IgM antibodies. Many pregnant women in Blue Nile State, Sudan, have suffered from recurrent pregnancy loss, and currently there is no available data concerning the prevalence of HCMV in Blue Nile state. This study aimed to determine HCMV antibodies (IgG and IgM) among pregnant women, who had undergone abortion(s), attending El-Damazin Hospital for Obstetrics and Gynecology.   Methods: This was a descriptive, cross-sectional hospital-based study. 270 pregnant women, who had undergone abortion(s) and who attended El-Damazin Hospital for Obstetrics and Gynecology, were included in the study from September to December 2018. Personal and clinical data were collected directly from each participant into a predesigned questionnaire. Serum samples were separated and stored at -20˚C until used. Samples were analyzed for HCMV IgG and IgM using enzyme-linked immune-sorbent assay (ELISA). Results: Participants were categorized into three age groups: 15-25 years (33.7%; 91/270); 26-40 years (62.2%; 168/270); and >41 years (4.1%; 11/270). The majority of the participants had IgG antibodies to HCMV (74.8%; 202/270), while only 13.3% (36/270) had IgM antibodies to HCMV. Most abortion cases were documented in the first trimester (85.6%; 231/270) and this had a significant relationship with IgG level (P=0.003). Low socioeconomic status was recorded in 84.8% (229/270) of participants and showed significant correlation with IgG level (P=0.025), whereas illiteracy was reported in 41.9% (113/270) of participants and did not have a significant relationship.   Conclusions: Seroprevalence of HCMV in this study population was 74.8% for IgG antibodies. There was an association between HCMV IgG level and first trimester abortion and low socioeconomic status among the studied women.


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