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  • Title: Placental expression and serum levels of cytokeratin-18 are increased in women with preeclampsia.
    Author: Hefler LA, Tempfer CB, Bancher-Todesca D, Schatten C, Husslein P, Heinze G, Gregg AR.
    Journal: J Soc Gynecol Investig; 2001; 8(3):169-73. PubMed ID: 11390252.
    Abstract:
    OBJECTIVE: To evaluate placental expression and serum cytokeratin-18 in women with preeclampsia. METHODS: Serum cytokeratin-18 was evaluated in 44 women with preeclampsia and 44 healthy pregnant women using an immunoradiometric assay. Placental expression of cytokeratin-18 was investigated in specimens from 23 women with preeclampsia and 20 healthy pregnant women by immunohistochemistry. RESULTS: Median serum cytokeratin-18 in women with preeclampsia and healthy pregnant women was 106.7 and 76.0 U/L, respectively (P =.02). Among women with preeclampsia, serum cytokeratin-18 was significantly associated with severity of disease (P =.001) and showed a sensitivity (standard error) and specificity (standard error) of 85% (7%) and 65% (12%), respectively. In placental specimens, the cytoplasm of the syncytiotrophoblast stained positive for cytokeratin-18 with strong and widespread staining in 83% and 45% of placental specimens of women with preeclampsia and healthy pregnant women, respectively (P =.01). CONCLUSION: Elevated serum cytokeratin-18 values are associated with disease severity in women with preeclampsia. Our data provide additional evidence that the placenta might be the source of the elevated serum cytokeratin-18 values in women with preeclampsia.
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