نتایج جستجو برای: basement membrane
تعداد نتایج: 392646 فیلتر نتایج به سال:
Background & Aims : Hair follicle morphogenesis is controlled by complex reprocical ectodermal–mesenchymal interactions regulated by molecular mechanisms. In addition, glycoconjugates are known to be important for molecular interactions during developmental processes. The aim of this research was to study glcoconjugate terminal sugars distributions and changes during rat hair follicle morph...
We report a case of struma ovarii with hyperthyroidism and elevated serum concentrations of type IV collagen and laminin. Circulating levels of type IV collagen and laminin were measured using specific radioimmunoassays (RIAs) for 7S collagen and the P-1 fragment of laminin, and the basement membrane components in the tumor were investigated by immunohistochemical analysis. Strong immunohistoch...
Large gaps in basement membrane occur at sites of cell invasion and tissue remodelling in development and cancer. Though never followed directly in vivo, basement membrane dissolution or reduced synthesis have been postulated to create these gaps. Using landmark photobleaching and optical highlighting of laminin and type IV collagen, we find that a new mechanism, basement membrane sliding, unde...
introduction and objective: alport’s syndrome (hereditary nephritis with deafness) is a familial uncommon disease that ultra-structural studies are gold standard method of its diagnosis. materials and methods:we studied 26 iranian patients suspicious of alport’s syndrome by electron microscopy. we examined 19 men and 7 women (male to female ratio was 2.7) and the average age was 1.5 years (with...
Background and Aim: Microscopic differentiation between well differentiated squamous cell carcinoma and verrucous carcinoma is very difficult. As these lesions have different clinical course and treatment a reliable method to help distinguish between them is necessary. The basement membrane in oral verrucous carcinoma is generally intact whereas in oral squamous cell carcinoma is mostly discont...
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