Oct 10, 1997

Parathyroid hormone-related protein levels in maternal and cord blood

American Journal of Obstetrics and Gynecology
Y HirotaI Miyakawa


Our purpose was to determine the plasma levels of parathyroid hormone-related protein in normal pregnant women in each trimester, at 1 month post partum in women using different feeding methods, and in umbilical venous blood. We studied 40 healthy nonpregnant women, 90 healthy pregnant women (30 in the each trimester), and 140 postpartum women (breast-feeding 74, mixed feeding 33, bottle feeding 33). We also measured the parathyroid hormone-related protein level in umbilical venous blood in 24 women. The means and SDs of the plasma parathyroid hormone-related protein level were 1.04 +/- 0.11 pmol/L (0.81 to 1.26 pmol/L) in nonpregnant women, 1.06 +/- 0.19 pmol/L (0.69 to 1.48 pmol/L) in pregnant women in the first trimester, 1.10 +/- 0.19 pmol/L (0.80 to 1.50 pmol/L) in pregnant women in the second trimester, and 1.17 +/- 0.16 pmol/L (0.86 to 1.57 pmol/L) in pregnant women in the third trimester. At postpartum month 1 the plasma level of parathyroid hormone-related protein was 1.25 +/- 0.23 pmol/L (0.83 to 2.01 pmol/L) in breast-feeding women, 1.17 +/- 0.16 pmol/L (0.84 to 1.53 pmol/L) in mixed-feeding women, and 1.03 +/- 0.16 pmol/L (0.74 to 1.43 pmol/L) in bottle-feeding women. The umbilical venous blood level of parathyroid ...Continue Reading

  • References17
  • Citations14


Mentioned in this Paper

Parathyroid Hormone Peptide (1-34)
Prevalence Studies
Venous Blood Substance
Umbilicus (Anatomy)
Portion of Venous Blood
Parathyroid hormone-related protein
Gene Products, Protein
Bottle Feeding
Parathyroid Hormone-related Protein Measurement
Pregnancy Trimester, Third

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