自固化磷酸钙充填根管的临床疗效观察

目的：探索自固化磷酸钙根管充填剂在根管治疗中的作用,观察其疗效。方法：选择做根管治疗的患牙120颗,随机分为2组,分别应用自固化磷酸钙根管充填剂和氧化锌西香西油碘仿糊剂加牙胶尖,进行根管充填治疗,随机观察12个月,结果：自固化磷酸钙根管充填剂治疗组根充后反应明显轻于化锌丁香油碘仿糊剂牙胶尖根充治疗组,临床治疗成功率高于氧化锌丁香油碘仿糊剂牙胶尖根管充填组（P＜0．05）。结果：自固化磷酸钙根管充填剂是一种良好的根充材料。     

Promising anti-growth effects of palladium(II) saccharinate complex of terpyridine by inducing apoptosis on transformed fibroblasts in vitro

Fibrosarcoma is one of the fatal cancer types and there is still not satisfactory success in its treatment despite new drugs. Therefore, the search for a new compound has been going on. It is currently known that some palladium-based anti-cancer compounds seem to have powerful apoptosis-inducing effects in cancer cells. For this purpose, a palladium(II)-saccharinate complex containing terpyridine which was synthesized by our research group was investigated in terms of its anti-tumor effects against mouse embryonic fibroblast NIH/3T3 (normal cell line) and rat embryonic fibroblast 5RP7 (H-ras transformed cell line) in vitro. The MTT and ATP viability assays were used to determine anti-growth/cytotoxic effects. Cytotoxic activity was confirmed by real time cytotoxicity analysis system. Flow cytometry analysis was further used to determine the mode of cell death (apoptosis/necrosis). Apoptosis was confirmed by triple-staining the cells with Hoechst 33342/PI/Calcein-AM triple and evaluated with fluorescence microscopy. It was found that the compound showed significant anti-growth activity by inducing apoptosis in a dose dependent manner. In conclusion, taking into account the cytotoxic activity of the compound at even relatively lower doses, in vivo experiments to elucidate its potential use for the treatment of fibrosarcoma are warranted.