Well known for their role in allergic disorders, mast cells (MCs) play a key role in homeostatic mechanisms and surveillance, recognizing and responding to different pathogens, and tissue injury, with an array of chemical mediators. After being recruited to connective tissues, resident MCs progenitors undergo further differentiation, under the influence of signals from surrounding microenvironm...

This study examined the healing of intrabony defects around 5 teeth treated with bioactive glass ceramic (PerioGlas). Healing was evaluated by clinical measurements, radiographic observation, and histologic analysis. The protocol included a presurgical phase of scaling and root planing therapy, with measurements obtained immediately prior to the surgical procedures and after 6 months of healing...

By fractionation of human liver tissue, nuclear, mitochondrial, and connective tissue antigens were prepared. According to the results of serological tests, in conditions associated with substantial damage to the hepatic parenchyma, antibodies reacting with the nuclear and mitochondrial antigens are produced that show practically no reaction with the connective tissue antigen. It is advisable t...

regarding to the important of pancreas in the body, this study was carried out on the histologic structure of pancreas of 6 pairs of iranian native turkeys of both sexes, age ranging from 26-30 weeks. routine histological techniques were used and stained by h&e; and masson’s trichrome, gomori’s method for reticulum, verhoeff’s, maldonado’s methods. the pancreas was covered with a thick dense co...