6-sulfatoxymelatonin collected from infant diapers: feasibility and implications for urinary biochemical markers.
6-sulfatoxymelatonin collected from infant diapers: feasibility and implications for urinary biochemical markers.
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DOI:
10.1177/1099800409337330
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发表时间:
2010-01
影响因子:
2.5
通讯作者:
Thomas KA
中科院分区:
文献类型:
--
作者:
Thomas KA
The purpose of this study was to assess feasibility and acceptability of using a diaper pad for collection of in-home infant urinary samples and to test the accuracy of diaper pad extraction for 6-sulfatoxymelatonin and creatinine, which was used to correct assay results for urinary volume. To assess feasibility and acceptability, urine samples from 20 infants were collected over a 24-hour day using a cotton pad inserted in the diaper. The accuracy of diaper pad extraction was evaluated in the laboratory setting using urine samples collected from 11 adult volunteers and assayed using enzyme immunosorbent assay (EIA). Urine samples were divided, one aliquot was assayed without extraction and one aliquot was instilled into a diaper pad, extracted, and assayed. Mothers found diaper pad collection acceptable and easy to perform. Of 144 infant urinary samples obtained in the home environment, 59% were usable for assay purposes, the remaining either were contaminated with stool or were of insufficient volume. While creatinine values from diaper pad extracted and non-extracted samples were highly correlated (R2 = 0.947) those of creatinine corrected 6-sulfatoxymelatonin were not (R2 = 0.216). Diaper pad collection procedures altered 6-sulfatoxymelatonin values. Implications for measurement of urinary biochemical substances and statistical analysis are discussed.
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DOI:
10.1038/sj.jea.7500334
发表时间:
2004-09-01
期刊:
JOURNAL OF EXPOSURE ANALYSIS AND ENVIRONMENTAL EPIDEMIOLOGY
影响因子:
--
作者:
Hu, Y;Beach, J;Gardner, M
通讯作者:
Gardner, M
影响因子:
3.2
作者:
MATTHEWS, CD;GUERIN, MV;WANG, X
通讯作者:
WANG, X
影响因子:
5.2
作者:
Rao, S;Bhatt, J;Macfarlane, P
通讯作者:
Macfarlane, P
影响因子:
3.6
作者:
Heckmann, M;Hartmann, MF;Wudy, SA
通讯作者:
Wudy, SA
影响因子:
6.6
作者:
Dorey, Corine M.;Zimmermann, Michael B.
通讯作者:
Zimmermann, Michael B.