نتایج جستجو برای: healing fracture bone
تعداد نتایج: 427002 فیلتر نتایج به سال:
BACKGROUND Whether or not there is a relationship between the newly-discovered irisin hormone and bone healing is not yet known. The aim of this study was to investigate what effect irisin hormone has on the bone healing process. MATERIAL AND METHODS The study included 21 adult patients with a diagnosed fracture of the lower extremity (femur or tibia). Informed consent was obtained from all the...
INTRODUCTION Fracture healing and distraction osteogenesis (DO) are unique postnatal bone formation processes, and neovascularization is critically required for successful bone regeneration. We investigated endothelial progenitor cell (EPC) mobilization during bone regeneration, and the possible contribution of EPCs to increased vascularization and new bone formation, especially in DO. METHOD...
Osteoporotic fractures commonly occur in the elderly. Current studies regarding cell proliferation and apoptosis during osteoporotic fracture healing are limited. In this study, we established an osteoporotic fracture healing model. Bone loss and callus formation were monitored with DXA, cell proliferation was examined using immunohistochemistry with BrdU monoclonal antibody and apoptotic cells...
Over one million fractures occur per year in the US and are associated with impaired healing increasing patient morbidity, stress, and economic costs. Despite improvements in surgical technique, internal fixation, and understanding of biologics, fracture healing is delayed or impaired in up to 4% of all fractures. Complications due to impaired fracture healing present therapeutic challenges to ...
Simple bone cysts are nonsymptomatic lesions. They typically involve the medullary cavity, but they can also be found in nonlong bones such as the calcaneum. Their treatment remains controversial varying from observation and conservative healing to irritating injections or bone grafting. In the case of a pathologic fracture, surgical treatment seems most appropriate especially when the cyst is ...
BACKGROUND We performed a multicenter, open, randomized, clinical study of autologous cultured osteoblast injection for long-bone fracture, to evaluate the fracture healing acceleration effect and the safety of autologous cultured osteoblasts. METHODS Sixty-four patients with long-bone fractures were randomly divided into two groups, i.e. those who received autologous cultured osteoblast inje...
BACKGROUND An elevated serum concentration of homocysteine (hyperhomocysteinemia) has been shown to disturb fracture healing. As the essential amino acid, methionine, is a precursor of homocysteine, we aimed to investigate whether excess methionine intake affects bone repair. MATERIAL/METHODS We analyzed bone repair in 2 groups of mice. One group was fed a methionine-rich diet (n=13), and the...
Transient Receptor Potential Vanilloid 1-Immunoreactive Innervation Increases in Fractured Rat Femur
PURPOSE Pain from vertebral or femoral neck fractures is a particularly important problem in clinical orthopaedics. Transient receptor potential vanilloid 1 (TRPV1) is a ligand-gated nonselective cation channel, and there are recent reports on an association between bone pain and TRPV1. However, an increase in TRPV1 activity has not been reported following femoral fracture. MATERIALS AND METH...
conclusions epo injection into the site of tibiofibular fractures may possibly accelerate healing. background erythropoietin (epo), in addition to its function as an erythropoiesis regulator has a regenerative activity on some nonhematopoietic tissues. animal studies have suggested a role for erythropoietin in bone healing. objectives the present study aimed to evaluate the effects of local epo...
Genetic studies have identified a high bone mass of phenotype in both human and mouse when canonical Wnt signaling is increased. Secreted frizzled related protein 1 (sFRP1) is one of several Wnt antagonists and among the loss-of-function mouse models in which 32-week-old mice exhibit a high bone mass phenotype. Here we show that impact fracture healing is enhanced in this mouse model of increas...
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