Tumor necrosis factor-α in pregnancies associated with preeclampsia or small-for-gestational-age newborns

Eyal Schiff, Steven A. Friedman, Peter Baumann, Baha M. Sibai, Roberto Romero

Research output: Contribution to journalArticlepeer-review

Abstract

OBJECTIVE: Our purpose was to determine the presence and concentration of tumor necrosis factor-α in maternal and fetal plasma in pregnancies associated with preeclampsia and small-for-gestational-age newborns. STUDY DESIGN: Maternal and fetal plasma tumor necrosis factor-α concentrations were measured in nonpregnant women (n = 12), women with normal pregnancies (n = 24), and women with pregnancies associated with severe preeclampsia (n = 23), small-for-gestational-age newborns (n = 14), or both preeclampsia and small-for-gestational-age newborns (n = 12). Tumor necrosis factor-α was measured with a sensitive and specific enzyme immunoassay. RESULTS: Tumor necrosis factor-α was detected in 89% of the samples studied. Concentrations ranged from <1.5 to 30 pg/ml. Similar levels were found in women with severe preeclampsia with or without small-for-gestational-age newborns, women who were delivered vaginally or abdominally in the control group, and nonpregnant women. Maternal and fetal tumor necrosis factor-a in the group with idiopathic small-for-gestational-age newborns were in general lower than those of all other groups. The route of delivery did not affect tumor necrosis factor-α concentrations in both the maternal and fetal plasma. There was a significant correlation between fetal venous and arterial plasma concentrations (r = 0.51, p = 0.01). CONCLUSIONS: Our study is the first to demonstrate a decrease in maternal and fetal plasma concentrations of tumor necrosis factor-α in pregnancies associated with idiopathic small-for-gestational-age newborns. This reduction may have endocrinologic importance or may reflect widespread paracrine and autocrine events. On the other hand, our findings do not support a fundamental endocrine role of tumor necrosis factor-α in preeclampsia. (AM J OBSTET GYNECOL 1994;170:1224-9.)

Original languageEnglish
Pages (from-to)1224-1229
Number of pages6
JournalAmerican Journal of Obstetrics and Gynecology
Volume170
Issue number5
DOIs
StatePublished - 1994

Keywords

  • Preeclampsia
  • small for gestational age
  • tumor necrosis factor-α

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