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Equivalent antiinflammatory doses of steroids including betamethasone, methylprednisolone and dexamethasone were administered in the neonatal period in a rat model. In situ cell death in hippocampus quantified by Terminal Deoxynucleated Transferase Nick-End Labeling and on ratio of brain to body weight was investigated. Apoptotic index (AI) was significantly higher in methylprednisolone, and high...
Wnt signaling has been implicated in the regulation of limb mesenchymal chondrogenesis. In this study, we have analyzed the molecular mechanism of Wnt-7a inhibition of chondrogenic differentiation by examining the involvement of mitogen-activated protein kinase (MAPK) pathways, i.e., Erk and p38. The combination of Wnt-7a misexpression and Erk inhibition partially recovers Wnt-7a inhibition of chondrogenic...
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