Abstract
Induce infection-associated cytokines intrauterine secretion of prostaglandins and term labor? Concentrations of Il-6, Il-1 beta, TNF-alpha, PGF2 and PGF2 alpha were determined in cervical secretions and amniotic fluid during spontaneous term labor. The supernatant of amnion-, chorion-, decidua- and trophoblast cells, cultured after elective cesarean section or spontaneous delivery, was analysed for cytokine- and prostaglandin activity. Term labor always is associated with intrauterine cytokine- and prostaglandin release. Increased production of cytokines and prostaglandins in case of normal term labor only was found by fetal trophoblast cells. Signal for parturition is of trophoblast and therefore of fetal origin.
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