Noradrenaline to Adrenaline Ratio in Amniotic Fluid as an Index of Fetal Maturity
- 1 January 1978
- journal article
- research article
- Published by SAGE Publications in Annals of Clinical Biochemistry: International Journal of Laboratory Medicine
- Vol. 15 (1-6) , 157-160
- https://doi.org/10.1177/000456327801500134
Abstract
Summary Amniotic fluid lecithin to sphingomyelin ratio (L/S) and adrenaline concentration, noradrenaline concentration, and noradrenaline to adrenaline ratio (NA/A) were measured in 50 normal women late in pregnancy. Between gestation weeks 37 and 43 the maturity-linked increase in L/S ratio was accompanied by similar increases in NA/A ratio and noradrenaline but by decreases in adrenaline concentration. Although the amniotic fluid NA/A ratio reflects fetal sympathetic nervous system development rather than pulmonary development as mirrored by the L/S ratio, a high correlation existed between log NA/A and L/S, indicating that the NA/A ratio could provide a further index of fetal maturity.This publication has 9 references indexed in Scilit:
- THE USE OF THE AMNIOTIC FLUID LECITH1N/SPHINGOMYELIN (L/S) RATIO, CREATININE CONCENTRATION AND NILE BLUE SULPHATE TESTS, INDIVIDUALLY AND IN COMBINATION, IN THE ASSESSMENT OF FETAL LUNG MATURITYBJOG: An International Journal of Obstetrics and Gynaecology, 1976
- THE BENEFITS AND RISKS OF AMNIOCENTESIS FOR THE ASSESSMENT OF FETAL LUNG MATURITYBJOG: An International Journal of Obstetrics and Gynaecology, 1975
- Measurement of Norepinephrine and Epinephrine in Small Volumes of Human Plasma by a Single Isotope Derivative Method: Response to the Upright PostureJournal of Clinical Endocrinology & Metabolism, 1974
- A COMPARISON BETWEEN THE LECITHIN‐SPHINGOMYELIN RATIO AND THE “SHAKE TEST” FOR THE ESTIMATION OF SURFACTANT IN AMNIOTIC FLUIDBJOG: An International Journal of Obstetrics and Gynaecology, 1973
- A simplified radiometric assay for plasma norepinephrine and epinephrineAnalytical Biochemistry, 1973
- Diagnosis of the respiratory distress syndrome by amniocentesisAmerican Journal of Obstetrics and Gynecology, 1971
- ADRENALINE, NORADRENALINE AND SEROTONIN ESTIMATIONS IN URINE AND AMNIOTIC FLUID DURING DELIVERYBJOG: An International Journal of Obstetrics and Gynaecology, 1961
- Renal function before birthProceedings of the Royal Society of London. B. Biological Sciences, 1953
- Über den Nachweis von Adrenalin in der Amnionflüssigkeit und in den Extrakten der Amnionmembranen in verschiedenen Abschnitten der SchwangerschaftArchiv für Gynäkologie, 1935