dear editor,   a 35-year-old man presented with severe headache and left sided hemiparesis since one day prior to admission. he reported frequent bouts of oral and genital aphthous ulcers, an attack of deep venous thrombosis of left lower extremity, one episode of right knee arthritis, and several attacks of headache, neck rigidity, and fever. he had been a victim of mustard-gas poisoning at th...

Breast cancer incidence increases during aging, yet the mechanism of age-associated mammary tumorigenesis is unclear. Mammary stem cells are believed to play an important role in breast tumorigenesis, but how their function changes with age is unknown. We compared mammary epithelial cells isolated from young and old mammary glands of different cohorts of C57BL6/J and BALB/c mice, and our findin...

Very little is known about the basal cells in the epididymal epithelium. Their function is unclear, although they are present in all mammalian epididymal studies. Thirty adult male albino rats were used in this study and were divided into 3 groups: group I (a control group; n =10), group II (injected with Indian ink; n = 10) and group III (exposed to ischemia reperfusion injury; n =10). The ani...

Background and Aim: Basal cell carcinoma (BCC) is considered to be the most common malignancy in humans and occurs primarily in the skin especially in the head and neck region. Considering the high recurrence rate of the tumor, finding a marker for prediction of recurrence is very important. Cancer stem cells are a small subpopulation in the tumors that are related to tumorigenesis and recurren...

in this research,for taxonomic studies and identification of the fungi associated with the powdery mildew(oidium euonymi- japonici) of buxus trees (euonymus japonica), the infected leaves were collected during autumn and winter 2012-2013 in gorgan (golestan province -iran). the samples after washing and surface sterilizing, were cultured on pda medium(with boxwood extract).then based on availab...

Objective: Many researchers have been more interested in inflammatory changes in tumor stroma recently. Recent studies have shown that mast cells are significantly increased in human skin basal cell carcinoma (BCC) and are associated with tumor aggressiveness. In this study, we compared the number of mast cell population expressing c-kit in the BCC samples and normal skin. We also evaluated the...