RESUMO
Background: Breast cancer is the main cause of death among women between 40 and 55 years old, in whom the hereditary cases are common. Therefore, the molecular diagnosis of germ line mutations involved in breast cancer susceptibility is relevant. BRCA1 and BRCA2 have been described as the two major genes involved in familial breast/ovarian cancer. We are performing a screening of BRCA1 and BRCA2 genes, in a group of 50 high risk Chilean families for breast/ovarian cancer. We have detected a mutation, 3936 C>T, that leads to a truncated protein, in two affected women from one of the families in study. Aim: To report the results of the screening for 3936 C>T in healthy relatives of index women. Material and me-thods: The molecular diagnosis of this mutation was offered to the healthy members of this family, and 17 relatives accepted to be tested. The region of the BRCA1 gene that includes the 3936 C>T mutation, was analyzed through PCR amplification, digestion with restriction enzyme BstNI, and direct sequencing. Results: 3936 C>T DNA mutation was present in 8 relatives. Conclusions: Considering the high risk of having a mutation in the BRCA1 gene, specially in pre-menopausal women, the molecualr diagnosis, genetic and clinical counseling are highly relevant. In Chile the molecualr diagnosis is still not widely applied.
Assuntos
Humanos , Feminino , Adulto , Neoplasias da Mama , Genes BRCA1 , Neoplasias da MamaRESUMO
Se estudiaron 55 episodios de Status Epilepticus en 50 niños menores de 14 años, hospitalizados entre enero de 1983 y diciembre de 1986, considerando factores etiológicos y desencadenantes, características clínicas y la evolución a corto y mediano plazo. La mortalidads y secuelas atribuíbles al status son reducidas en nuestra serie, lo que se atribuye a un tratamiento oportuno y adecuado de los episodios junto a una duración no muy prolongada de éstos. El pronóstico en cuanto a limitaciones físicas e intelectuales y nuevas crisis, estuvo condicionado al factor etiológico y desencadenante, además del estado neurológico previo al Status. El mejor pronóstico correspondió a aquellos pacientes previamente sanos y en los que no hubo factor desencadenante o etiológico identificable. Finalmente se estableció una relación entre los hallazgos electroencefalográficos y la evolución posterior del paciente