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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1993-8-13
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pubmed:abstractText |
Trisomy 12 is the most common cytogenetic abnormality in chronic lymphocytic leukaemia (CLL) and may be a prognostic indicator. In the present study, fluorescence in situ hybridization (FISH) is shown to be a method of choice for detection of trisomy 12 in interphase cells. Seventy-five cases of B-cell CLL were analysed with a chromosome 12 specific alpha satellite DNA probe and results compared with those from cytogenetic analysis. FISH showed the three hybridization spots characteristic of trisomy 12 in 32/75 patients (42.6%). Sixty-three patients were also studied by conventional cytogenetics: failure in 7 cases, normal karyotype in 28, trisomy 12 in 9 (14.3%) and in 19 cases abnormalities other than trisomy 12. In these same 63 patients, trisomy 12 was detected on 29 occasions by FISH (46%): in one case of failure by cytogenetic analysis, in 9 cases thought to have a normal karyotype, in 10 cases carrying abnormalities other than trisomy 12 and in all 9 cases showing trisomy 12 by conventional cytogenetic investigation. Correlation between trisomy 12 and the three stages of the Binet classification indicated an increasing proportion of trisomy 12 from stage A to stage C. It is concluded that fluorescence in situ hybridization is a powerful and sensitive technique for detection of trisomy 12 in CLL and although more cases will be required to confirm a correlation between the incidence of trisomy 12 and the stage of the disease, this link could be important from a prognostic point of view.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:author | |
pubmed:volume |
35
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
129-34
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pubmed:dateRevised |
2007-11-15
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pubmed:meshHeading |
pubmed-meshheading:8332448-Adult,
pubmed-meshheading:8332448-Aged,
pubmed-meshheading:8332448-Aged, 80 and over,
pubmed-meshheading:8332448-Chromosomes, Human, Pair 12,
pubmed-meshheading:8332448-Female,
pubmed-meshheading:8332448-Humans,
pubmed-meshheading:8332448-In Situ Hybridization, Fluorescence,
pubmed-meshheading:8332448-Incidence,
pubmed-meshheading:8332448-Interphase,
pubmed-meshheading:8332448-Karyotyping,
pubmed-meshheading:8332448-Leukemia, Lymphocytic, Chronic, B-Cell,
pubmed-meshheading:8332448-Male,
pubmed-meshheading:8332448-Middle Aged,
pubmed-meshheading:8332448-Trisomy
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pubmed:year |
1993
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pubmed:articleTitle |
Trisomy 12 in B-cell chronic lymphocytic leukemia: interphase study by in situ hybridization in 75 patients.
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pubmed:affiliation |
Département d'Hématologie, Hôpital Nord, Saint-Priest-en-Jarez, France.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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