Problem
Cytomegalovirus (CMV) infection was previously reported in pregnancy complications. However, its seroprevalence and associated Toll-like receptor (TLR) expression in early onset preeclampsia (EOPE) with Hemolysis, Elevated Liver enzyme and Low Platelets syndrome (HELLPs) are unexplored.
Method of study
A case-control study was performed to examine maternal CMV antibodies, neutrophil Toll like receptor (TLR)-2 and -4 expression as well as the cytokine profile in EOPE with HELLPs (EOPE-HELLPs) (n=10), late onset preeclampsia (LOPE) (n=20), normal pregnancy (n=60), and non-pregnancy (n=20) controls.
Results
EOPE-HELLPs had significantly increased CMV IgG sero-positivity, up-regulated TLR-2/-4 mRNA expression, elevated serum IL-6 and TNF-α, and reduced IL-10 compared with matched normal and non-pregnancy controls. No significant difference was observed between LOPE and normal pregnancy controls.
Conclusion
We observed a significant association of CMV infection and innate immune response in EOPE-HELLPs. Our data suggest CMV infection may be a risk factor for this disorder.