Allelic frequencies of six polymorphic markers for risk of prostate cancer
Braz. j. med. biol. res
; 35(2): 205-213, Feb. 2002. ilus, tab
Article
em En
| LILACS
| ID: lil-303554
Biblioteca responsável:
BR1.1
ABSTRACT
The aim of the present study was to evaluate the distribution of polymorphisms for the androgen receptor (AR) (CAG, StuI, GGN), SRD5A2 (Ala49Thr, Val89Leu) and CYP17 (MspA1) genes that are considered to be relevant for risk of prostate cancer. We studied 200 individuals from two cities in the State of Säo Paulo, by PCR, PCR-RFLP and ASOH techniques. The allelic frequencies of the autosomal markers and the StuI polymorphism of the AR gene were very similar to those described in most North American and European populations. In relation to the CAG and GGN number of repeats, the study subjects had smaller repeat lengths (mean of 20.65 and 22.38, respectively) than those described in North American, European and Chinese populations. In the present study, 30.5 percent of the individuals had less than 22 CAG repeats and 45.5 percent had less than 23 GGN repeats. When both repeat lengths are considered jointly, this Brazilian population is remarkably different from the others. Further studies on prostate cancer patients need to be conducted to assess the significance of these markers in the Brazilian population
Texto completo:
1
Índice:
LILACS
Assunto principal:
Polimorfismo Genético
/
Neoplasias da Próstata
/
Frequência do Gene
Tipo de estudo:
Etiology_studies
/
Risk_factors_studies
Limite:
Adult
/
Humans
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Male
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Braz. j. med. biol. res
Assunto da revista:
BIOLOGIA
/
MEDICINA
Ano de publicação:
2002
Tipo de documento:
Article
/
Project document