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SOME PHYSIOLOGICAL ASPECTS OF ALPHA AMINO NITROGEN METABOLISM IN THE UTERUS OF THE PREGNANT AND NON‐PREGNANT EWE
Author(s) -
Curet Luis B.,
Crenshaw Carl,
Mann Leon,
Abrams R. H.,
Barron D. H.
Publication year - 1970
Publication title -
quarterly journal of experimental physiology and cognate medical sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 101
eISSN - 1469-445X
pISSN - 0033-5541
DOI - 10.1113/expphysiol.1970.sp002074
Subject(s) - uterus , gestation , alpha (finance) , amino acid , pregnancy , endocrinology , biology , medicine , chemistry , biochemistry , surgery , construct validity , patient satisfaction , genetics
Arterial and uterine venous concentrations of alpha amino nitrogen and uterine blood flow were repeatedly measured in twelve non‐pregnant and ten pregnant Dorset ewes. The arterial levels and uterine arteriovenous differences of alpha amino nitrogen were low early in gestation and gradually increased to approach non‐pregnant values towards the end of gestation. The uterine uptake of alpha amino nitrogen per kilogramme of uterine tissue behaved in a similar way but remained lower than the uptake per kilogramme of tissue by the non‐pregnant uterus. The data suggest that the removal of amino acids by the uterus is independent of the levels in the blood reaching the organ.