Results: 231

Scanning electron microscopy of granuloma annulare

An. bras. dermatol; 93 (5), 2018
Abstract: Light microscopy of granuloma annulare shows mucin deposition with lympho-histiocytic infiltrate. We describe the ultrastructural three-dimensional aspects of a typical case of granuloma with characteristic histopathological findings. At the ultrastructural level, affected collagen bundles and ...

Comparative study of fibrosis induced by Marlex®, Parietex Composite®, Vicryl® and Ultrapro® meshes1

Acta cir. bras; 33 (9), 2018
Abstract Purpose: To evaluate the fibrosis induced by four different meshes: Marlex®, Parietex Composite®, Vicryl® and Ultrapro®. Methods: Histological cutouts of abdominal wall were analyzed with polarized light 28 days after the meshes implants and colorized by picrosirius to identify the inten...

Tissue microarray technology and collagen evaluation to analyze surgical trauma performed with usual blade or ultrasonic harmonic scalpels in rats

Acta cir. bras; 33 (9), 2018
Abstract Purpose: To compare wound healing performed with cold blade (CSB) and ultrasonic harmonic scalpel (UHS) in the abdominal aponeurosis of rats. Methods: Eighty Wistar rats divided into two groups and underwent midline incision in the linea alba with cold blade and harmonic ultrasonic scalpel. ...

Aplicação de membranas de colágeno contendo ácido úsnico incorporado em lipossomas no processo de cicatrização de queimaduras em áreas especiais

Rev. bras. queimaduras; 17 (2), 2018
Objetivo: Verificar a cicatrização de queimaduras em áreas especiais através da aplicação da membrana bioativa de colágeno contendo ácido úsnico incorporado em lipossomas. Método: Trata-se de um estudo de intervenção, descritivo e de campo, de comparação intraindividual, com abordagem quant...

Pro - inflammatory cytokines and metalloproteinase activation in polypropylene mesh implant in rat subcutaneous tissue

Int. braz. j. urol; 44 (4), 2018
ABSTRACT Aims and Objectives: Polypropylene meshes have been increasingly adopted for correction of pelvic organ prolapse due to its lower recurrence rate when compared to surgeries without meshes. The study of the interaction of these materials with the host tissue may contribute to the development of ...

Rectal application of argan oil improves healing of colorectal anastomosis in rats

Acta cir. bras; 33 (7), 2018
Abstract Purpose: To investigate the possible effects of argan oil on the healing of colorectal anastomoses. Methods: I n Group 1 (sham), laparotomy was performed and the colon was mobilized. In the control (Group 2) and argan oil (Group 3) groups, colonic resection and anastomosis were applied. To th...

Low intensity training provokes adaptations on muscle fibrosis of a muscular dystrophy model

Int. j. morphol; 36 (2), 2018
Duchenne muscular dystrophy (DMD) is a genetic neuromuscular disorder with progressive clinical signs until death, around the second decade of life. Mdx is the most used animal model to pre-clinical studies of DMD. Parameters of exercise on this muscular disease are still unknown. This research aimed to ...

Evaluation of dermal collagen stained with picrosirius red and examined under polarized light microscopy

An. bras. dermatol; 93 (3), 2018
Abstract: The special picrosirius red staining highlights the natural birefringence of collagen fibers when exposed to polarized light. The results from birefringence allow to evaluate the organization of the collagen fibers in the tissues. The authors intend to elucidate all steps to obtain and capture ...

Effects of the application of the amniotic membrane in the healing process of skin wounds in rats

Acta cir. bras; 33 (2), 2018
Abstract Purpose: To evaluate the efficacy of the application of the human amniotic membrane (HAM) on the inflammatory process, fibroblast proliferation, formation of collagenand reduction of skin wound areas in rats. Methods: Thirty six rats were submitted to a surgical injury induction and divided ...

Valor pronóstico de los niveles de propéptido N-terminal del procolágeno tipos I y III asociados al remodelamiento ventricular en pacientes con insuficiencia cardiaca crónica

Rev. colomb. cardiol; 25 (1), 2018
Resumen Introducción: La insuficiencia cardiaca constituye el estadio final de muchas cardiopatias. Aunque los cambios en la composición de la matriz extracelular relacionados con el proceso de remodelamiento ventricular han sido descritos, ni la evolución ni el impacto clínico de la fibrogénesis ...