Measurement of Serum Progesterone and Tissue PGE2 in 15-HPGD Hypomorphic Pregnancies
A, Serum progesterone concentration in hypomorphic and wild-type pregnancies displayed as a function of days before labor onset. Values are mean ± sem. *, P < 0.05; n = 3 for all, except n = 5 for hypomorphic pregnancies one half day before labor. B, PGE2 concentrations in the placenta. *, P < 0.05 compared with all other measures; n = 4. C, PGE2 concentration in ovary. *, P < 0.05; n = 4.