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Emerging role of endothelial and inflammatory markers in preeclampsia
Menha Swellam1, Nervana Samy, Susan Abdl Wahab
1Department of Biochemistry, Genetic Engineering and Biotechnology Research Division, National Research Center, Dokki, Giza, Egypt. menha_m_swellam@yahoo.com
Insights
This study found that combining thrombomodulin (TM), plasminogen activator inhibitor-1 (PAI-1), C-reactive protein (CRP), and interleukin-6 (IL-6) offers a sensitive diagnostic approach for pre-eclampsia (PE). Specifically, PAI-1 combined with CRP demonstrated superior sensitivity and specificity for PE detection.
Area of Science:
- Biochemistry
- Immunology
- Obstetrics
Background:
- Pre-eclampsia (PE) involves endothelial dysfunction and heightened inflammation.
- Accurate diagnostic markers are crucial for managing PE.
Purpose of the Study:
- To evaluate the diagnostic utility of thrombomodulin (TM), plasminogen activator inhibitor-1 (PAI-1), C-reactive protein (CRP), and interleukin-6 (IL-6) in pre-eclampsia.
- To assess these markers individually and in combination for pre-eclampsia detection.
Main Methods:
- Retrospective analysis of 185 women (80 with PE, 55 normotensive pregnant, 50 healthy non-pregnant).
- Plasma levels of TM, PAI-1, CRP, and IL-6 measured via enzyme-linked immunosorbent assays.
Main Results:
- All markers showed significantly higher levels and positivity rates in the PE group (P < 0.0001).
- PAI-1 exhibited the highest individual sensitivity (98%).
- Combining markers achieved 100% sensitivity, with PAI-1 and CRP combination showing 83% specificity.
Conclusions:
- Endothelial and inflammatory markers are sensitive indicators for pre-eclampsia diagnosis.
- The combination of PAI-1 and CRP presents a promising, highly sensitive, and specific method for pre-eclampsia detection.
Objectives:
Endothelial disturbance and excess inflammatory response are pathogenic mechanisms in pre-eclampsia (PE). Authors determine the clinical diagnostic role for thrombomodulin (TM), plasminogen activator inhibitor-1 (PAI-1) as endothelial markers and C-reactive protein (CRP), and interlukin-6 (IL-6) as inflammatory markers when tested independently or in combinations.
Materials And Methods:
We conducted a retrospective study in a cohort of 185 women grouped as 80 women with PE, 55 normotensive pregnant and 50 healthy non-pregnant. Plasma levels of TM, PAI-1, CRP and IL-6 were examined using enzyme linked immunosorbent assays.
Results:
Median levels and the positivity rates for the investigated markers were higher in PE as compared to the other groups (P < 0.0001). Using linear regression analysis, the investigated markers were significantly correlated regarding healthy non-pregnant vs PE or normotensive pregnant vs PE. The sensitivity of PAI-1 was the highest (98%) among the tested biomarkers. Combination between the investigated markers revealed absolute sensitivity (100%) and reliable specificity especially when PAI-1 was combined with CRP at 83% specificity.
Conclusions:
Investigated endothelial and inflammatory markers revealed sensitive diagnostic test for PE. However, coupled combination between PAI-1 with CRP showed superior both sensitivity and specificity which represent a promising new approach for detection of PE.
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