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MELATONIN IN THE MATERNAL AND UMBILICAL CIRCULATIONS DURING HUMAN PARTURITION
Author(s) -
Mitchell M. D.,
Bibby J. G.,
Sayers Linda,
Anderson Anne B. M.,
Turnbull A. C.
Publication year - 1979
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.1979.tb10679.x
Subject(s) - melatonin , pregnancy , medicine , endocrinology , obstetrics , biology , genetics
Summary The concentration of melatonin in maternal peripheral plasma was measured during late pregnancy, term and pre‐term labour. There was a small increase in the mean concentration of melatonin during labour which was significant in term labour. Umbilical arterial and venous plasma, whether obtained at term, after spontaneous vaginal delivery or at Caesarean section, contained significantly greater concentrations of melatonin than maternal plasma. A significant arterio‐venous difference was demonstrated for both groups of umbilical samples with raised venous levels after spontaneous vaginal delivery but higher arterial levels at Caesarean section.