Immunohistochemical evaluation of CD117 in mast cell of aggressive periodontitis.

Context: Aggressive periodontitis is a type of inflammatory response in periodontal tissues that is differentiated from chronic by its earlier onset, its high rate of progression, subgingival microbial composition, the difference in the host's immune response, and family history of the disease. Mast cells live in tissues and contribute to the various allergic and inflammatory conditions, including periodontal diseases, through the release of cytokines, chemokines, and proteolytic enzymes. CD117, the receptor of the stem cell factor expressed by the mast cells, is the hallmark of mast cell development.

Expression of mast cell in aggressive periodontitis.

Background: Aggressive periodontitis is a progressive disease that can cause tooth loss within a short period of time. Mast cells are found in tissues with various allergic and inflammatory conditions including periodontal disease through the release of cytokines, chemokines, and proteolytic enzymes. Given the findings of some studies on the related role of mast cells, this study was conducted to determine the number of mast cells in aggressive periodontitis.

Expression of p63 and CD44 in oral squamous cell carcinoma and correlation with clinicopathological parameters.

Squamous cell carcinoma (SCC) is the sixth most frequent malignant tumor of the head and neck region. Despite advances in therapeutic options over the last decades, the rate of mortality and morbidity has not been improved markedly. A small subset of cells, cancer stem cells (CSCs), with self-renewal properties have become a major focus of current cancer research.

Effect of zinc sulfate on human primary enamel microhardness: an in vitro study.

Objective: The aim of this study was to assess the effect of zinc sulfate on microhardness of human primary enamel.

Method: Sixteen sound primary molars were sectioned mesiodistally. For each sample one of the sections was randomly immersed in artificial saliva (Biotene, USA) and the other was immersed in artificial saliva which was charged with 10 mg/5 mL concentration of zinc sulfate supplement (Razak Company, Iran) daily.

Isotretinoin as monotherapy for sebaceous hyperplasia.

Sebaceous hyperplasia is a common benign lesion composed of sebaceous glands. It is characterized as yellow or flesh-toned papules with central umbilication. The authors report the case of a 57-year-old Caucasian female with a longstanding history of sebaceous hyperplasia refractory to treatment on her face.