Histological, histochemical and immunohistological comparative study between Ranitidine and Rebamipide in Gastric Mucosal protection after Dexamethasone induced injury in adult male albino rats

Background: Gastritis can be caused by many factors, one of them is drugs, and among these drugs is dexamethasone that has many uses in medicine. Dexamethasone prevent synthesis of gastric mucous barrier by surface epithelial cells, so the stomach wall will be injured by digestive enzymes and stomach HCl. Treatment of gastritis can be done by antisecretory drugs like H2 receptors blocker as ranitidine or by drugs that stimulate prostaglandins synthesize by surface epithelial cells of gastric mucosa to form the mucous barrier like rebamipide

Aim of the work: Comparison between ranitidine and rebamipide to detect which mechanism is better in gastric mucosal protection after dexamethasone administration

Material and methods: Twenty male albino rats were included in this study, they were divided into four groups, control group, dexamethasone administrated group, dexamethasone and ranitidine administrated group, dexamethasone and rebamipide administrated group, each group contained five rats. The examined samples were stained with hematoxylin and eosin stain, PAS and Alcian blue stains and TdT reaction, all of the results were statistically analyzed

Results: The result showed improvement of the gastric mucosa by using both of ranitidine and rebamipide as protective agents against injury induced by dexamethasone but the improvement was better in the group that was administrated rebamipide as indicated by better number of healthy cells, low numbers of damaged cells and better formed mucous barrier

Conclusion: The drug that stimulates mucous barrier formation is better than antisecretory drug in gastric mucosa protection

Facial measurements of Assiut children aged 6-11 years

The aim of the present study is to investigate changes in the facial measurements of Assiut children at the selected ages. A total of 300 healthy child aged 6-11 years old participated in the study; they were taken from primary schools in Assiut City. Children were divided into 6 age groups; each age group included 50 children [25 boys and 25 girls]. Each child was subjected to the following measurements: facial height, upper facial height, lower facial height, upper facial width, lower facial width, maxillary facial depth and mandibular facial depth.. Results reveal that all facial parameters of boys are significantly higher than that of girls at all ages, but girls tend to grow faster than boys. It is also evident that most of facial parameters are correlated with each other. The pattern of facial growth of children in Assiut City indicates leptoprosopic [narrow] face type