TY - JOUR
T1 - Steroid hormone levels in pregnancy and 1 year postpartum using isotope dilution tandem mass spectrometry
AU - Soldin, Offie P.
AU - Guo, Tiedong
AU - Weiderpass, Elisabete
AU - Tractenberg, Rochelle E.
AU - Hilakivi-Clarke, Leena
AU - Soldin, Steven J.
PY - 2005/9
Y1 - 2005/9
N2 - Objective: To establish normal, trimester-specific reference intervals for serum 17β-estradiol, progesterone (P), 17α-hydroxyprogesterone, cortisol, 11-deoxycortisol, androstenedione, DHEA, and DHEAS, measured simultaneously using isotope dilution tandem mass spectrometry. Design: Sequential cohort study. Patient(s): Healthy women undergoing a normal pregnancy (age, 25-38 years; mean, 30 years) attending a prenatal well clinic at gestation weeks 12, 22, and 32 and approximately 1 year postpartum. Main Outcome Measure(s): Trimester-specific reference intervals of endogenous steroid hormones analyzed using an isotope dilution tandem mass spectrometer equipped with an atmospheric pressure photoionization source with deuterium-labeled internal standards. Result(s): Serum estradiol, P, 17α- hydroxyprogesterone, and 11-deoxycortisol increased throughout pregnancy; cortisol increased up to the second trimester and then remained steady, while androstenedione increased by 80 percent by gestation week 12, then remained constant. Serum DHEA-S decreased by 50% by the third trimester. Conclusion(s): Trimester-specific reference intervals are reported for eight serum steroids. The ratios of individual serum hormone concentrations during pregnancy relative to their 1-year postpartum concentrations illustrate the expected normal trends of changes in hormone concentrations during pregnancy.
AB - Objective: To establish normal, trimester-specific reference intervals for serum 17β-estradiol, progesterone (P), 17α-hydroxyprogesterone, cortisol, 11-deoxycortisol, androstenedione, DHEA, and DHEAS, measured simultaneously using isotope dilution tandem mass spectrometry. Design: Sequential cohort study. Patient(s): Healthy women undergoing a normal pregnancy (age, 25-38 years; mean, 30 years) attending a prenatal well clinic at gestation weeks 12, 22, and 32 and approximately 1 year postpartum. Main Outcome Measure(s): Trimester-specific reference intervals of endogenous steroid hormones analyzed using an isotope dilution tandem mass spectrometer equipped with an atmospheric pressure photoionization source with deuterium-labeled internal standards. Result(s): Serum estradiol, P, 17α- hydroxyprogesterone, and 11-deoxycortisol increased throughout pregnancy; cortisol increased up to the second trimester and then remained steady, while androstenedione increased by 80 percent by gestation week 12, then remained constant. Serum DHEA-S decreased by 50% by the third trimester. Conclusion(s): Trimester-specific reference intervals are reported for eight serum steroids. The ratios of individual serum hormone concentrations during pregnancy relative to their 1-year postpartum concentrations illustrate the expected normal trends of changes in hormone concentrations during pregnancy.
KW - Androstenedione
KW - Cortisol
KW - DHEA
KW - DHEAS
KW - Estradiol
KW - Hormones
KW - Isotope dilution tandem mass spectrometry
KW - Progesterone
KW - Reference intervals
KW - Steroids
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U2 - 10.1016/j.fertnstert.2005.02.045
DO - 10.1016/j.fertnstert.2005.02.045
M3 - Article
C2 - 16169406
AN - SCOPUS:24944536730
VL - 84
SP - 701
EP - 710
JO - Fertility and Sterility
JF - Fertility and Sterility
SN - 0015-0282
IS - 3
ER -