Study on maternal immune responses to syncytiotrophoblast by analyzing Epstein-Barr virus-transformed B lymphocytes

Fujino, Takashi; Shiokawa, H.; Takesako, S.; Iwamoto, Ichizo; Shiraogawa, K.; Watanabe, Tsuguo; Nagata, Y.; Sonoda, Shunro

doi:10.1016/0165-0378(89)90314-8

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“…Latent EBV infection has been linked to the development of diseases as such as B‐cell and T‐cell/natural killer cell lymphoproliferative disease 6–8 . It has been shown in vitro that EBV‐transformed B‐lymphocytes from puerperal women produce IgM that react against trophoblast cells 38 and may thus influence placental function. EBV‐induced gene 3, which is expressed in trophoblasts, is likely to be an important immunomodulator 10 .…”

Section: Discussionmentioning

confidence: 99%

Epstein–Barr virus infection during pregnancy and the risk of adverse pregnancy outcome

Eskild

Bruu

Stray‐Pedersen

et al. 2005

BJOG

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Objectives To study the association between Epstein -Barr virus (EBV) antibody status in early pregnancy and pregnancy outcomes including fetal death, length of gestation and fetal weight and length at birth. Design Nested control study.Setting Population based health registers.Population The source population comprised 35,940 pregnant women. Cases were all (280) women with fetal death and a random sample of 940 women with a live born child. Method Information on pregnancy outcome was obtained from the Norwegian Medical Birth Registry. Serum samples from the first trimester were tested for EBV antibodies. In women seronegative for EBV, further serum from late pregnancy was analysed to detect seroconversion. Main outcome measures Vital status, length of gestation, weight and length at birth.Results There was no association between EBV antibody status and fetal death. Women with significant EBV reactivation had a significantly shorter duration of pregnancy, and associated lighter babies, compared with women without significant reactivation (stillborn: 176 vs 197 days, P ¼ 0.16, and live born: 271 vs 279 days, P ¼ 0.03, respectively). Conclusion Significant reactivation of EBV infection during pregnancy may influence pregnancy duration.

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Section: Discussionmentioning

confidence: 99%