Increased levels of the soluble receptor of Interleukin-6 in patients with preeclampsia compared to normotensive pregnant women
DOI:
https://doi.org/10.15448/1980-6108.2013.4.14862Keywords:
Preeclampsia, Cytokine, Interleukin-6, Receptors, InflammationAbstract
AIMS: To compare Interleukin-6 soluble receptor (IL-6sR) plasmatic levels between normotensive pregnant controls and preeclamptic women. METHODS: Maternal blood samples were collected before delivery from 21 patients with preeclampsia and 39 normotensive pregnant controls. Samples were stored at -80°C until laboratory assay. IL-6sR was measured by ELISA enzyme immunoassay. To compare groups Student's t test was used. Results with P less than 0.05 were considered significant. RESULTS: Data from preeclampsia and normotensive pregnant controls were respectively: maternal age 22.3±4.8 vs 26.0±3.7 years (P=0.06); gestational age 32.7±5.8 vs 40.1±0.8 weeks (P=0.01); systolic blood pressure 143.0±2.2 vs 118.8±3.1 mmHg (P=0.01); diastolic blood pressure 112.5±4.0 vs 77.2±10.2 mmHg (P=0.01); uric acid 5.87±1.10 vs 4.57±0.12 mg/dL (P=0.02); creatinine 0.82±0.12 vs 0.73±0.09 mg/dL (P=0.01); birth weight 2130.7±839.3 vs 3555.0±261.0 g (P=0.01); placental weight 621.3±167.0 vs 796.3±154.2 g (P=0,05). Proteinuria over creatininuria ratio in the preeclampsia group was 2.40±1.31. The concentration of IL-6sR (ng/dL) was 28.7±10.8 in preeclampsia vs 16.5±6.4 in normotensive pregnant controls (P=0.01). CONCLUSIONS: These results show an increased plasma levels of IL-6sRin patients with preeclampsia compared to normotensive pregnant women. More studies are necessary to clarify the pathophysiology of this entity, including the analysis of other cytokines linked to this receptor, due to the fact that they can be the key for the systemic inflammatory response that occurs in these patients and therefore for their treatment.Downloads
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