mast cells are related to certain gastrointestinal complaints. mast cell density has not been studied in cardio-esophageal region to the best of our knowledge. in this study we wanted to obtain an estimate of mast cell density in this region and compare it with mast cell density in antrum. from april 2007 till march 2010, we chose children (<14 years old) who underwent upper endoscopy and from ...

Background and objective:Gingival bleeding reduction in smokers has been associated with decreased blood vessel density. The mechanism of suppressive effect of cigarette smoking on blood vessel density is not precisely defined. The aim of this study was to evaluate the impact of smoking on angiogenesis by assessing mast cells density and VEGF expression in chronic peri...

background: squamous cell carcinoma (scc) is the most common malignancy in oral cavity. angiogenesis is essential for the development and progression of scc. recently, some studies have reported that mast cells may play a role in tumor progression via promoting angiognesis. since the results of various studies on the role of mast cells in tumor progression is not uniform, the aim of this study ...

abstract background and aims. reliable immunohistochemical assays to evaluate the definitive role of mast cells and angiogenesis in the pathogenesis of oral reactive lesions are generally not available. the purpose of the present study was to compare mast cell count (mcc) and microvessel density (mvd) between oral reactive lesions and evaluation of the correlation between mcc and mvd in these l...

abstract background numerous disorders can cause recurrent abdominal pain. many of these cases underwent endoscopy and clinician encounters patients with history of recurrent abdominal pain and normal endoscopy. we evaluated these biopsies with regard to their eosinophils and mast cell densities to find out a potential relationship between recurrent abdominal pain with eosinophils and mast cell...

Abstract Background Numerous disorders can cause recurrent abdominal pain. Many of these cases underwent endoscopy and clinician encounters patients with history of recurrent abdominal pain and normal endoscopy. We evaluated these biopsies with regard to their eosinophils and mast cell densities to find out a potential relationship between recurrent abdominal pain with eosinophils and mast ce...

increased number of mast cells at the site of infection is widely regarded as important host defense against parasites. the kinetics of mucosal mast cells and connective tissue mast cells responses were studied in the intestines of 68 female cflp mice infected with 100 schistosoma mansoni cercariae. the number of mucosal mast cells and the connective tissue mast cells increased from week 3 and ...

Mast cells in rat hearts were studied quantitatively during normal postnatal growth and in two types of cardiac hypertrophy. Normally, cardiac mast cell density in 11-12-day-old animals is very low, but increases markedly in the following 2-3 weeks to its highest values, with a subsequent decline toward adult values. At the peak of mast cell density, the percentage of mast cells in close proxim...