Source:http://linkedlifedata.com/resource/pubmed/id/16279017
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
2005-11-9
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pubmed:abstractText |
Serum PTH (7-84) is accumulated in patients with secondary hyperparathyroidism. It is also known that serum calcium (Ca) increases the generation of N-terminally truncated forms of parathyroid hormone (PTH). In this study, we examined whether accumulation of PTH (7-84) fraction is a parathyroid glandular origin or not by using primary cultured parathyroid cells from patients with primary and secondary hyperparathyroidism. The Bio-PTH/I-PTH ratio, indicating the ratio of PTH (1-84) to the sum of (1-84) PTH and N-terminally truncated fragment, was suppressed by increase in extracellular Ca2+ concentration for both cultured parathyroid cells prepared from parathyroid adenomas and uremia-associated secondary hyperparathyroidism. There is no difference between the ratios in primary and secondary hyperparathyroidism. These findings suggest that N-terminal truncation is regulated by extracellular Ca2+ concentration in parathyroid cells, but accumulation of PTH (7-84) fragments in patients with secondary hyperparathyroidism is mainly caused by uremia.
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pubmed:commentsCorrections | |
pubmed:language |
jpn
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0917-5857
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pubmed:author |
pubmed-author:ImanishiYasuoY,
pubmed-author:InabaMasaakiM,
pubmed-author:IshikawaTetsuroT,
pubmed-author:IshimuraEijiE,
pubmed-author:KawataTakehisaT,
pubmed-author:KobayashiKeisukeK,
pubmed-author:NishizawaYoshikiY,
pubmed-author:OkunoSenjiS,
pubmed-author:OnodaNaoyoshiN,
pubmed-author:TaharaHidekiH,
pubmed-author:TakemotoYoshiakiY
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pubmed:issnType |
Print
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pubmed:volume |
15 Suppl 1
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
98-100; discussion 100-1
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:16279017-Calcium,
pubmed-meshheading:16279017-Cells, Cultured,
pubmed-meshheading:16279017-Dose-Response Relationship, Drug,
pubmed-meshheading:16279017-Humans,
pubmed-meshheading:16279017-Hyperparathyroidism, Primary,
pubmed-meshheading:16279017-Hyperparathyroidism, Secondary,
pubmed-meshheading:16279017-Parathyroid Glands,
pubmed-meshheading:16279017-Parathyroid Hormone,
pubmed-meshheading:16279017-Peptide Fragments,
pubmed-meshheading:16279017-Uremia
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pubmed:year |
2005
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pubmed:articleTitle |
[Effect of calcium on N-terminal truncation of PTH in human parathyroid cells].
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pubmed:affiliation |
Department of Metabolism, Endocrinology and Molecular Medicine, Osaka City University Graduate School of Medicine.
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pubmed:publicationType |
Journal Article,
English Abstract
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