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Document ID (ISN)103489
CIS number 04-381
ISSN - Serial title 0019-8366 - Industrial Health
Year 2004
Convention or series no.
Author(s) Yamauchi H.
Title Effects of night work on urinary excretion rates of 6-sulfatoxymelatonin, norepinephrine and estriol in pregnant women
Bibliographic information Apr. 2004, Vol.42, No.2, p.268-276. Illus. 39 ref.
Abstract The objective of this study was to assess the effects of night work on the biological functions of pregnant women. Three pregnant and six non-pregnant nurses working in shifts cooperated for the study. Urine samples were collected during the day shift, the night shift and the days off. Urinary concentrations of 6-sulfatoxymelatonin and norepinephrine were measured by enzyme-linked immunosorbent assay and estriol by radioimmunoassay. Excretion profiles of urinary 6-sulfatoxymelatonin in the pregnant and the non-pregnant women were altered on the night shift, which could be caused by the disturbance in the circadian rhythms of melatonin secretion. Among the pregnant women, urinary norepinephrine levels during the night work were considerably higher, while the effect of night work on urinary estriol level of the pregnant women remained uncertain.
Descriptors (primary) hormones; shift work; expectant mothers; nursing personnel; night work
Descriptors (secondary) urinary excretion; determination in urine; circadian rhythm; norepinephrine excretion
Document type D - Periodical articles
Country / State or ProvinceJapan
Subject(s) Ergonomics and work organization
Broad subject area(s) Industries and occupations
Browse category(ies) Health care services