is rare to have an environment where the gap is completely reduced, another type of primary repair is gap repair. In this environment, a slight gap may be visible, but not enough for cartilage or woven bone formation; therefore repair is initiated by marrow cells of the bone and lamellar bone is laid down. However, the new bone is laid down perpendicular to the old bone, and therefore must be r...

helicobacter pylori was the main cause of gastric cancer (gc) in all over the world that results in intestinal- and diffuse-type carcinoma. infection by this bacterium remains chronic for a long time. in vitro studies have highlighted the role of stem cells in gc. h. pylori infection results in tissue injury and the adult/tissue stem cells subsequently start to replace the dead cells. the genet...

Human bone is susceptible to damage from infections, fractures, and diseases. They do, however, have an amazing ability repair themselves after being exposed such factors, which accomplished by a dynamic process of remodeling, maturation, differentiation, regulated resorption. Larger defects, on the other hand, cannot be fully restored because their sizes exceed capacity bones repair. In cases,...

Tendon-to-bone healing is typically poor, with a high rate of repair-site rupture. Bone loss after tendon-to-bone repair may contribute to poor outcomes. Therefore, we hypothesized that the local application of the osteogenic growth factor bone morphogenetic protein 2 (BMP-2) would promote bone formation, leading to improved repair-site mechanical properties. Intrasynovial canine flexor tendons...

The understanding of bone repair phenomena is a fundamental part of dentistry and maxillofacial surgery. Objective The present study aimed to evaluate the influence of buried magnetic field stimulation on bone repair in rat calvaria after reconstruction with autogenous bone grafts, synthetic powdered hydroxyapatite, or allogeneic cartilage grafts, with or without exposure to magnetic stimulatio...

conclusions the results of this study showed that the meticulous microsurgical nerve repair, which was performed using the vein tubulization induced significantly better sciatic nerve regeneration. however, the addition of bone marrow mesenchymal stem cell to vein conduit failed to promote any significant changes in regeneration outcome. results all animals tolerated the surgical procedures and...

distraction osteogenesis (do), firstly introduced to the medical world by russian scientist ilizarov for long bone lenghtening in orthopedics can be considered as an appropriate substitute in the treatment of maxillofacial deformities. natural events occuring during the repair of a fractured bone segment not only lead to the desired bone length but also prevent from the undesired disadvantages ...

introduction : surgical repair of cleft palate with a bony bridge may offer some distinct advantages including a lower rate of fistula formation. the goal of this study was to evaluate the feasibility of surgically inducing cleft palate and reconstruction of the cleft with the use of bone morphogenetic protein-2 (bmp-2) in sheep. materials and methods : in the control group (two sheep), the cle...