» Articles » PMID: 1635745

Oxygen Measurements in Endometrial and Trophoblastic Tissues During Early Pregnancy

Overview
Journal Obstet Gynecol
Date 1992 Aug 1
PMID 1635745
Citations 205
Authors
Affiliations
Soon will be listed here.
Abstract

Placental and endometrial partial pressures of oxygen (PO2) were measured using a polarographic oxygen electrode during the first trimester of pregnancy. Between 8-10 weeks' gestation, placental PO2 levels were significantly lower (P less than .001) than endometrial levels. A significant (P less than .001) increase was observed for placental PO2 values measured at 12-13 weeks compared with those obtained at 8-10 weeks. We suggest that the increase of placental PO2 at the end of the first trimester is related to the establishment of continuous maternal blood flow in the intervillous space.

Citing Articles

Placental Adaptation to Hypoxia: The Case of High-Altitude Pregnancies.

Ahrens S, Singer D Int J Environ Res Public Health. 2025; 22(2).

PMID: 40003440 PMC: 11855801. DOI: 10.3390/ijerph22020214.


Hypoxia and loss of expression prevents differentiation and contact inhibition in human trophoblast stem cells.

Cinkornpumin J, Kwon S, Prandstetter A, Maxian T, Sirois J, Goldberg J bioRxiv. 2024; .

PMID: 39314437 PMC: 11419009. DOI: 10.1101/2024.09.10.612343.


A Hypoxia-Decidual Macrophage Regulatory Axis in Normal Pregnancy and Spontaneous Miscarriage.

Huang X, Lin Z, Zheng Z, Shi J, Lu K, Wang J Int J Mol Sci. 2024; 25(17).

PMID: 39273657 PMC: 11395248. DOI: 10.3390/ijms25179710.


MCM proteins are up-regulated in placentas of women with reduced insulin sensitivity.

Bandres-Meriz J, Sanz-Cuadrado M, Hurtado de Mendoza I, Majali-Martinez A, Honeder S, Cindrova-Davies T Biosci Rep. 2024; 44(10).

PMID: 39268985 PMC: 11461181. DOI: 10.1042/BSR20240430.


Melatonin: the placental antioxidant and anti-inflammatory.

Joseph T, Schuch V, Hossack D, Chakraborty R, Johnson E Front Immunol. 2024; 15:1339304.

PMID: 38361952 PMC: 10867115. DOI: 10.3389/fimmu.2024.1339304.