Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
1992-3-4
pubmed:abstractText
An identical extra derivative chromosome resulting from a translocation between the long arm of chromosome 1 and the short arm of chromosome 9, +der(1q9p), has been observed in three patients with a myeloproliferative disorder. Two patients had polycythemia vera in transformation (erythroleukemia in one patient and refractory anemia in the second), whereas the third patient had myelofibrosis which later evolved into acute myelomonocytic leukemia. The two patients who developed overt leukemia did not receive any previous cytotoxic treatment. Non-isotopic in situ hybridization was performed in two patients, allowing for the localization of the breakpoints in 1q12 and 9q12. A similar rearrangement has been previously described in patients with polycythemia vera, either at diagnosis or in advanced stages of the disease. These data suggest that this chromosome abnormality may be consistently associated with myeloproliferative disorders showing a high propensity to transformation, which is not treatment related, and the finding of the +der(1q9p) may represent a poor prognostic sign when observed in the chronic phase.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0887-6924
pubmed:author
pubmed:issnType
Print
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1059-63
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Extra translocation +der(1q9p) is a prognostic indicator in myeloproliferative disorders.
pubmed:affiliation
Dipartimento di Scienze Biomediche e Oncologia Umana, Sezione Clinica, University of Torino, Italy.
pubmed:publicationType
Journal Article, Review, Case Reports, Research Support, Non-U.S. Gov't