OsteonecrosisMaxillary FracturesNecrosisTumor Necrosis Factor-alphaReceptors, Tumor Necrosis FactorReceptors, Tumor Necrosis Factor, Type IIFat NecrosisFemur Head NecrosisKidney Papillary NecrosisKidney Cortex NecrosisCytokinesKidney Tubular Necrosis, AcuteInterleukin-1ApoptosisTumor Necrosis FactorsCells, CulturedLipopolysaccharidesNF-kappa BInterleukin-6RNA, Messenger