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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1980-11-20
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pubmed:abstractText |
Portions of pregnancy and midcycle urines were submitted to hot acid hydrolysis, extracted with benzene/ethyl acetate and the extracts washed with ascorbic acid buffer. From the remaining organic phase the catecholestrogens were removed with borate buffer and further purified on Sephadex LH-20 columns. After derivatisation 4-hydroxyestrone was separated from the isomeric 2-hydroxyestrone peak were identical with that of authentic 4-hydroxyestrone. After treatment of the extracts with sodium borohydride 4-hydroxyestradiol-17 beta was identified by GC-MS. By the addition of trace amounts of tritiated 4-hydroxyestrone a recovery of 40% was calculated. On the basis of this recovery and the peak heights of the gas chromatograms an excretion of 4 microgram (midcycle) and 40 microgram (pregnancy) of 4-hydroxyestrone/24 h was estimated.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/4-hydroxyestradiol-17 beta,
http://linkedlifedata.com/resource/pubmed/chemical/4-hydroxyestrone,
http://linkedlifedata.com/resource/pubmed/chemical/Estradiol,
http://linkedlifedata.com/resource/pubmed/chemical/Estrone,
http://linkedlifedata.com/resource/pubmed/chemical/Hydroxyestrones
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0039-128X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
36
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
73-9
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:7414657-Chromatography, Ion Exchange,
pubmed-meshheading:7414657-Estradiol,
pubmed-meshheading:7414657-Estrone,
pubmed-meshheading:7414657-Female,
pubmed-meshheading:7414657-Humans,
pubmed-meshheading:7414657-Hydroxyestrones,
pubmed-meshheading:7414657-Pregnancy,
pubmed-meshheading:7414657-Spectrum Analysis
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pubmed:year |
1980
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pubmed:articleTitle |
4-hydroxyestrone, isolation and identification in human urine.
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pubmed:publicationType |
Journal Article
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