The Aim of this study is to determine the histological structure in wall layers large intestine guinea pig. cecum and colon was characterized by a delicate lining that moisturized mucus also gel by-product bacterial fermentation. This performed on ascending descending five health animals. composed four tunicae (mucosa, submucosa, muscularis serosa, tunica mucosa consist epithelium, lamina propr...

The aim of this study was to determine histological changes in rats’ oral mucosa at induced postmenopausal oestrogen decrease and after administration of raloxifene and 17β-oestradiol. Wistar female rats were ovariectomized and divided into experimental groups; basal – after ovariectomy without drugs BOV, taking raloxifene RA and oestradiol – OVH (10 rats per group). Additionally, 10 rats witho...

We examined the ability of the mucus layer adherent to isolated pieces of rabbit gastric mucosa to maintain a pH gradient across it. Using antimony microelectrodes, a stable pH gradient was detected from pH 2.31 +/- 0.04 on the luminal side to pH 7.26 +/- 0.15 (n = 22) on the epithelial side of the mucus layer. The gradient was maintained for at least 60 minutes. A metabolic inhibitor, potassiu...

BACKGROUND AND PURPOSE To our knowledge, sonographic findings in the neopharynx have not been well characterized. We describe our results and assess the role of sonography versus CT in patients who have undergone total laryngectomy. METHODS We examined 25 patients (24 men and one woman; 44-78 years old) who had had a total laryngectomy. Sonography (with a 10-MHz transducer) and contrast-enhan...

PURPOSE Several urethral conditions may require tissue substitution. One collagen-base biomaterial that recently emerged as an option is small intestinal submucosa (SIS). The aim of this study was to compare the results of SIS and buccal mucosa for urethral substitution in rabbits. MATERIALS AND METHODS Thirty-six North Folk male rabbits were randomized into three groups. In all animals, a 10...

background of the study: colorectal cancer (crc) which is the third most diagnosed cancer throughout the world is steadily rising in the asian countries with the incidence rates mimicking the western counterparts. the pre-neoplastic nature of the transitional mucosa (tm) adjoining crc lacks conclusive evidence so far. pertaining to this, the study of the mucus layer, the functional component of...

BACKGROUND Although various pancreaticojejunal duct-to-mucosa anastomosis methods have been developed to reduce the postoperative risks of pancreaticoduodenectomy, pancreatic fistula remains the most serious complication with a high incident rate. The aim of this study is to compare the safety and effectiveness of one-layer and two-layer duct-to-mucosa pancreaticojejunostomy in patients undergo...

AIMS To evaluate the changes in mucus gel layer thickness and prostaglandin E2 (PGE2) content caused by Helicobacter pylori infection in the antral mucosa of children: to assess whether decreased mucus gel thickness is related to PGE2 production. METHODS Antral biopsy specimens were taken at endoscopy from 153 children. H pylori gastritis was evident in 45 and normal mucosa in 59. The other 4...

background: the northern pike esox lucius is a fresh water species belonging to the esocidae family. it is a carnivorous fish which mostly feeds on invertebrates and fishes. the morphology of its intestine is very useful for understanding the fish’s digestive physiology, diagnosing some intestinal diseases and formulating suitable feeds. objectives: this study was designed to determine the anat...

A problem maxillofacial surgeons face is a lack of sufficient autogenous oral mucosa for reconstruction of the oral cavity. Split-thickness or oral mucosa grafts require more than one surgical procedure and can result in donor site morbidity. Skin has disadvantages of adnexal structures and a different keratinization pattern than oral mucosa. In this study, we successfully assembled, ex vivo, a...