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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1994-5-12
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pubmed:abstractText |
High-molecular-mass alkaline phosphatase (H-Mr AP) was detected in sera from children with solid tumors without liver metastases. H-Mr AP activities were determined by a liquid chromatographic and an electrophoretic method. In 5 out of 10 cases with solid tumors--Ewing sarcoma (n = 2), neuroblastoma (n = 2), and rhabdoid tumor (n = 1)--H-Mr AP activities ranged from 3.1-40.4 U/L and 3.1-16% of total serum AP activity. In sera of patients with leukemia (n = 18) H-Mr AP was not detectable. After the treatment of the sera with papain and phosphatidylinositol-specific phospholipase C, which release membrane-associated AP from membrane particles, H-Mr AP was no longer detectable. These results indicate that H-Mr AP in the sera of patients with solid tumors may derive from increasing cell shedding of the tumor cells with elevated levels of membrane fragments in serum, which is a well known phenomenon in liver tumors. H-Mr AP was not more detectable in the serum after successful tumor treatment. These data suggest that H-Mr AP was produced by the tumors and that this parameter may be a serological marker for some solid tumors even in the presence of normal total AP serum activity.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0300-8630
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
206
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
36-9
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pubmed:dateRevised |
2004-11-17
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pubmed:meshHeading |
pubmed-meshheading:8152205-Adolescent,
pubmed-meshheading:8152205-Alkaline Phosphatase,
pubmed-meshheading:8152205-Blood Protein Electrophoresis,
pubmed-meshheading:8152205-Child,
pubmed-meshheading:8152205-Child, Preschool,
pubmed-meshheading:8152205-Chromatography, High Pressure Liquid,
pubmed-meshheading:8152205-Female,
pubmed-meshheading:8152205-Humans,
pubmed-meshheading:8152205-Infant,
pubmed-meshheading:8152205-Isoenzymes,
pubmed-meshheading:8152205-Male,
pubmed-meshheading:8152205-Neoplasms,
pubmed-meshheading:8152205-Tumor Markers, Biological
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pubmed:articleTitle |
High-molecular-mass or macromolecular alkaline phosphatase in sera of children with solid tumors.
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pubmed:affiliation |
Children's Hospital University of Cologne, Erlangen-Nürnberg.
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pubmed:publicationType |
Journal Article
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