Abstract
Cervical specimens were obtained by needle biopsy in connection with caesarean section at term pregnancy. The preparations were superfused in an organ chamber and contractions were registered isometrically. Prostaglandin (PG) E2 and F2 alpha inhibited spontaneous contractions. The stimulatory action of noradrenaline was not influenced by PGF2 alpha but was reduced by PGE2 whereas both PGs abolished the excitatory effect of oxytocin.
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