This work aimed to immobilize the antibody anti-galectin-3 onto polysiloxane-polyvinyl alcohol (POS-PVA) support, to evaluate its capacity to capture the serum antigen galectin-3 and to quantify by ELISA the antigen levels in sera from patients with prostatic adenocarcinoma (PA) and benign prostatic hyperplasia (BPH) and healthy individuals. Also, for comparative effect, the galectin-3 expression in the prostate tissue through immunohistochemistry was evaluated. The optical density (galectin-3 level) values established for the sera from PA and BPH patients were lower compared with those found for the healthy individuals. Galectin-3 immunohistochemically showed a significant increase and reduction of the cytoplasmatic protein expression in BPH and PA, respectively, compared with the normal prostate. These results showed that POS-PVA disks could be used as solid phase to immobilize serum galectins and in immunoassays procedures for the correspondent IgG anti-galectins detection in human sera.

Primeira submissão em 29/06/06 Última submissão em 15/09/06 Aceito para publicação em 24/10/06 Publicado em 20/12/06

Avaliação digital comparativa da expressão tecidual da proteína cerbB-2 em mulheres portadoras de doenças tumorais da mama Comparative digital evaluation of tissue expression of the cerbB-2 protein in women with breast tumoral diseases

RESUMO: Objetivos: O presente estudo avaliou, através da imunohistoquímica e estudo histopatológico, as principais alterações na mucosa intestinal de pacientes acometidos pela retocolite ulcerativa crônica idiopática (RCUI) apenas tratada clinicamente (n=30) ou subseqüentemente tratada com Proctocolectomia total e construção de bolsa ileal (n=30