Artículos de revistas
N-ras Gene Point Mutations In Brazilian Acute Myelogenous Leukemia Patients Correlate With A Poor Prognosis.
Registro en:
Leukemia & Lymphoma. v. 24, n. 3-4, p. 309-17, 1997-Jan.
1042-8194
10.3109/10428199709039018
9156660
Autor
De Melo, M B
Lorand-Metze, I
Lima, C S
Saad, S T
Costa, F F
Institución
Resumen
The frequency of ras gene mutations varies from 11 to 27% in AML populations from the United States and Europe but it seems that there is no study regarding the frequency of mutated N-ras gene in patients with AML in South America. In order to study the frequency of N-ras gene mutations (exons 1 and 2) in Brazilian patients with AML and to evaluate the possible correlation between the presence of the mutation and clinical features, 40 patients were analyzed. N-ras mutations were identified in DNA samples from eight of 40 AML patients (20%). No significant correlation was found between N-ras mutation and age, sex, race, response to therapy, FAB subtype or occupational exposure. However, the overall survival and AML-free survival were significantly shorter in patients with N-ras mutations than in those without these abnormalities. 24 309-17