SciELO - Scientific Electronic Library Online

 
vol.29 número2Destete en una UCI polivalente. Incidencia y factores de riesgo de fracaso. Valoración de índices predictivosCohorte GEFA-HT-UY (GEnotipo, Fenotipo y Ambiente de la HiperTensión Arterial en UruguaY): Protocolo y primeros resultados índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Links relacionados

Compartir


Revista Médica del Uruguay

versión On-line ISSN 1688-0390

Resumen

MAZZEI, María Eugenia et al. Determinación de la mutación BRAF V600E en melanomas de pacientes uruguayos. Rev. Méd. Urug. [online]. 2013, vol.29, n.2, pp.97-102. ISSN 1688-0390.

Abstract Introduction: identifying genetic changes that occur in melanoma genesis has enabled the development of therapies that are specifically geared against such changes, what resulted in an increase of patients' survival for the first time in the history of systemic treatment of melanoma, in patients with advanced disease. The best results have been obtained with vemurafenib, a therapy that targets the BRAF protein and is only effective in the presence of the V600E mutation. Thus, its frequency in a certain population measures its potential impact in health figures. Objective: to evaluate the frequency of the V600E mutation in BRAF in melanomas of Uruguayan patients. Method: 28 samples of microdissected melanoma were studied and V600E mutation was tested through ASO-PCR (allele specific oligonucleotide - polymerase chain reaction). Results: we managed to amplify DNA in 27 out of the 28 samples and the mutation was identified in 21 of them (FR: 0.78). Discussion: previous works demonstrated a lower presence of melanomas that are carriers of the V600E mutation of BRAF (40%-60% in the Caucasian population and 25% in the Asian population) than what our study revealed. Our results, in spite of the need to include a larger number of patients, could partially be due to differences in the technique used and maybe as a consequence of a different proportion of patients with melanomas associated to the intermittent sun exposure.

Palabras clave : PROTO-ONCOGENE PROTEINS B-RAF; MUTATION; MELANOMA.

        · resumen en Español | Portugués     · texto en Español     · Español ( pdf )

 

Creative Commons License Todo el contenido de esta revista, excepto dónde está identificado, está bajo una Licencia Creative Commons