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Levels of antibodies against cytomegalovirus and Chlamydophila pneumoniae are increased in early onset pre‐eclampsia

2003; Wiley; Volume: 110; Issue: 8 Linguagem: Inglês

10.1111/j.1471-0528.2003.02481.x

1471-0528

Peter von Dadelszen, Laura A. Magee, Mel Krajden, Kadria Alasaly, Vesna Popovska, Rajashree M. Devarakonda, Deborah Money, David M. Patrick, Robert C. Brunham,

Reproductive System and Pregnancy

The origins of pre-eclampsia/eclampsia lie in a mismatch between feto-placental demands and utero-placental supply, a situation that also arises in normotensive intrauterine growth restriction (IUGR). Could reactivated chronic infection be both a trigger for these differential maternal responses to the same underlying pathology and a link between pre-eclampsia and its attendant lifelong risks of atherosclerosis?Nested case-control study.Tertiary obstetric centre.Cases of pre-eclampsia, normotensive IUGR and controls.A nested case-control study of serum from a population-based bank was performed. Seroprevalence and levels of anti-cytomegalovirus (CMV) and Chlamydophila pneumoniae immunoglobulin G (IgG) were compared (non-parametrically) between women with early onset pre-eclampsia ( or =34 + 0 weeks of gestation, n = 29), normotensive IUGR (birthweight less than third centile, n = 33) and matched normal pregnancy (n = 113, up to 2 per case).There was a significant difference in both anti-CMV and Chl. pneumoniae antibodies between groups (Kruskal-Wallis test, P < 0.05). Women with early onset pre-eclampsia had higher anti-CMV levels (median: 79, 95% confidence interval [95% CI] = 47, 164) than women with late onset pre-eclampsia (26 [95% CI = 22, 82], P < 0.05), normotensive IUGR (40 [95% CI = 31, 72], P < 0.05) and normal pregnancy (49 [95% CI = 45, 70], P < 0.05). Women with normotensive IUGR had significantly lower anti-Chl. pneumoniae antibodies (0.10 [95% CI = 0.08, 0.38]) than did normal pregnancy controls (0.21 [95% CI = 0.20, 0.28], P <0.05).The anti-CMV and anti-Chl. pneumoniae antibodies were higher in early onset pre-eclampsia than in late onset pre-eclampsia, normotensive IUGR and normal pregnancy. This may provide a pathophysiological link between pre-eclampsia and the known increased risk for subsequent atherosclerosis.