The impact of COVID-19 infection on the cytokine profile of pregnant women: A prospective case-control study
Highlights
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COVID-19 infection seems to have an impact on the cytokine profile of pregnant women varying according to pregnancy trimesters and cytokine levels seem to be correlated with disease severity.
Abstract
Objective
To compare the levels of various cytokines between pregnant women with confirmed coronavirus disease (COVID-19) infection and pregnant women without any defined risk factor.
Materials and Methods
Pregnant women with confirmed COVID-19 infection (study group)(n = 90) were prospectively compared to a gestational age-matched control group of pregnant women without any defined risk factors (n = 90). Demographic features, clinical characteristics, laboratory parameters, interferon-gamma (IFN γ), interleukin (IL-2), IL-6, IL-10, and IL-17 levels were compared between the groups. Additionally, a correlation analysis was performed in the study group for the assessment of IFN γ, IL-2, IL-6, IL-10, and IL-17 levels with disease severity and CRP levels.
Results
Study group had significantly higher pregnancy complication rate, erythrocyte sedimentation rate, C-reactive protein, procalcitonin, ferritin, D-dimer, lactate dehydrogenase, IFN γ, and IL-6 values (p < 0.05). On the other hand, the control group had significantly higher hemoglobin, leukocyte, platelet, lymphocyte, IL-2, IL-10, and IL-17 values (p < 0.05). Statistically significant differences were found between the groups for IFN γ, IL-2, IL-10, and IL-17 values between the trimesters (p < 0.05). Statistically significant positive correlations were found for IFN γ and IL-6 with disease severity (r = 0.41 and p < 0.001 for IFN γ and r = 0.58 and p < 0.001 for IL-6). On the other hand, a moderate negative correlation for IL-2 and a weak negative correlation for IL-10 were present (r = -0.62 and p < 0.001 for IL-2 and r = -0.19 and p = 0.01 for IL-10). A statistically significant positive moderate correlation was found between IL-6 and CRP (r = 0.40 and p < 0.001)
Conclusion
COVID-19 infection seems to have an impact on the cytokine profile of pregnant women varying according to pregnancy trimesters and cytokine levels seem to be correlated with disease severity.