Our data demonstrate a slow reinnervation of most vascular targets following axotomy of the SCG with only minimal recovery of TH protein
in the SCG at 12 weeks following injury. (c) 2012 Elsevier B.V. All rights reserved.”
“Particles released from orthopedic implants attract immune host defense cells to the bone-implant interface and contribute to development of inflammation. The inflammatory microenvironment supports recruitment and differentiation GSK2879552 of osteoclasts, the primary culprit of osteolysis. Therefore, understanding the complex signals that contribute to osteoclastogenesis and osteolysis is a sensible approach to design strategies to inhibit bone loss. The signaling cascades that coordinate osteoclastogenesis have been widely investigated. These include MAP kinases,
Akt/PI3K pathway, NF-kappa B signal transduction pathway, and NFAT pathway. We have recently reported that polymethylmethacrylate (PMMA) particles activate the NFAT pathway in murine osteoclast precursors and that NFAT inhibitors dose-dependently block PMMA-induced osteoclastogenesis. In the current study, we examined the role of JNK and NFATc1 in mice in response to PMMA particles using murine calvaria click here model. We show that locally administered MAPK/JNK inhibitor SP600125 and calcineurin/NFAT inhibitor cyclosporine-A effectively blocked PMMA-induced osteolysis in murine calvaria. To buttress the clinical relevance of JNK/NFATc1-based regulation of PMMA-induced osteoclastogenesis, we evaluated the effect of PMMA using human macrophages. We demonstrate that
SP600125 and cyclosporine-A abolished particle-induced osteoclastogenesis in human osteoclast progenitors retrieved from patients undergoing total hip replacement. Thus JNK and NFATc1 appear to act as significant mediators learn more of orthopedic particle-induced osteolysis in humans. (c) 2012 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 31:67-72, 2012″
“Oilier’s disease is characterized by the hamartomatous proliferation of cartilage cells, producing masses termed chondromas A patient presented with Ollier’s disease which was found to be associated with diffuse gliomas Investigating this disease is crucial as there is a high risk of sarcomatous transformation of the skeletal lesions as well as an increased risk of developing extra-osseous malignancies”
“Low-flow disturbances are predicted to increase in frequency and intensity because of climate change and extensive human water withdrawal, but the effect of decreased flow on aquatic insect communities is not well understood. I explored the resistance of aquatic insects to reduced flow by creating an experimental low-flow disturbance that diverted similar to 40 to 80% of the water in 3 replicate streams for 2 summers.