Abstract
Objectives: Fetal lung maturation in preterm infants with chorioamnionitis is known to be accelerated.
However, the molecular basis of this pathological acceleration has not been elucidated.
We investigated whether reactive oxygen species play a role in the acceleration of
fetal lung maturation. Study Design: On the 16th day of gestation, xanthine (1 mM) and xanthine oxidase solution (0.1–100 mU/ml) were injected into the intrauterine cavity of pregnant rats. On the 19th day
of gestation, we examined the expression of the mRNA of surfactant associated proteins
A, B and C (sp-A, sp-B and sp-C) by reverse transcription-polymerase chain reaction.
Results: sp-A, sp-B and sp-C mRNAs were observed in lung tissue from fetal rats stimulated
by xanthine–xanthine oxidase in contrast to the control. Conclusion: Reactive oxygen species in amniotic fluid might be an important factor in accelerated
fetal lung maturation associated with chorioamnionitis in the rat experimental model.
Keywords
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Article info
Publication history
Accepted:
June 8,
2000
Received in revised form:
May 16,
2000
Received:
September 15,
1999
Identification
Copyright
© 2001 Elsevier Science Ireland Ltd. Published by Elsevier Inc. All rights reserved.
