For many years physiological properties within the body that lead to or prevent ulceration of gastric and duodenal mucosa have been thought of as being 'aggressive' or 'defensive' in nature. Peptic ulcer has been assumed to develop when the summation of aggressive factors is greater than defensive, and a past concept has assumed that an increase in the latter or decrease in the former would lea...

BACKGROUND AND AIMS Histochemical analysis of the surface mucous gel layer of the human colon is difficult, as it dissolves in fixatives. This study was undertaken to explore the surface mucous gel layer on the normal mucosa and neoplastic tissues of the large intestine. In addition, the distribution of different mucins secreted from goblet cells was studied with a series of histochemical stain...

Recently, in our experiments, we used the shortcircuit current technique to study the kinetic constants for nutrient transporters in rat gastricintestinal tract and the thickness of the intestinal unstirred layer near the mucosa surface. It was shown that, during the process of aging, the number of nutrient monomer transporters in the small intestine increases twofold, whereas the affinity of t...

In this paper, we propose a new computer aided detection (CAD) technique to utilize both global and local shape information of the colon wall for detection of colonic polyps. Firstly, the whole colon wall is extracted by our mixture-based image segmentation method. This method uses partial volume percentages to represent the distribution of different materials in each voxel, so it provides the ...

introduction: there is no single test as a gold standard for the diagnosis of allergic rhinitis (ar). the aim of this study was to assess the usefulness and validity of nasal smear as a quick, easy and inexpensive diagnostic method for diagnosis of allergic rhinitis. materials and methods: this study was conducted in a university hospital setting. nasal smears were taken from 39 patients with a...

The histopathological diagnosis of squamous cell hyperplasia of the larynx is very subjective. Since morphometry is highly reproducible, this method was applied to routine processed slides of 45 such lesions to assess objectively the epithelial characteristics. In each case measurements of nuclei of 50 cells in the basal, intermediate, and superficial cell layers were carried out. The data were...

UNLABELLED High pressure of pharyngo-esophageal segment is the most important factor of impaired development of alaryngeal speech (esophageal speech, tracheoesophageal speech) after total laryngectomy. To prevent pharyngo-esophageal spasm in Department of Otolaryngology in Szczecin are used: pharyngoesophageal plastic surgery with interposition of vascular thyroid flap, two-layer (only mucosa) ...