Hyoscine butylbromide for colorectal polyp detection: prospective, randomized, placebo-controlled trial.

Objectives:: The removal of pre-malignant colorectal lesions prevents cancer. Hyoscine has been proposed as a means of improving diagnosis by reducing colonic movements. The aim of this study was to analyze whether this anti-spasmodic enhances the detection of pre-malignant colorectal lesions.

Transection of the hepatic parenchyma associated or not with the contralateral portal vein branch ligature and its effect in liver regeneration.

Objective: To analyze the influence of portal vein ligation in hepatic regeneration by immunohistochemical criteria.

Methods: Ten pigs divided into two groups of five animals underwent hepatectomy in two stages, and the groups were differentiated by ligation or not of the left portal vein tributary, which is responsible for vascularization of the left lateral and medial lobes of the pig liver. Five days after the procedure, the animals underwent liver biopsies for further analysis of histological and immunohistochemical with marker Ki67.

Histological evaluation of capsules formed by silicon implants coated with polyurethane foam and with a textured surface in rats.

Purpose:: To assess the capsules formed by silicone implants coated with polyurethane foam and with a textured surface.

Methods:: Sixty-four Wistar albinus rats were divided into two groups of 32 each using polyurethane foam and textured surface. The capsules around the implants were analyzed for 30, 50, 70 and 90 days.