Bilateral fracture of the mandible in chronic lymphocytic leukaemia. Case report

The development of osteolytic bone lesions in patients with chronic lymphocytic leukaemia (CLL) is extremely rare and has not been reported to involve the mandible. A case of bilateral pathologic fracture of the mandible extensively involved with multiple bony deposits of CLL is reported.     

Tip-Edge Plus矫治器矫治慢性牙周炎致错(牙合)畸形的疗程观察

目的 比较3种矫治器矫治慢性牙周炎致前牙病理性移位患者的疗程.方法将60例慢性牙周炎致前牙病理性移位的患者分为3组(每组20个人),分别应用3种矫治技术进行矫治,并对3组患者的疗程进行统计学分析. 结果应用固定矫治器矫治,牙周状态评估指数为预后极佳;疗程在3组有显著性差异(F=130.67,P=0.0001), Tip-Edge Plus组疗程最短,平均缩短5.6个月,具有统计学意义.结论 Tip-Edge Plus矫治器矫治效果好,病程短,明显优于其它两种矫治器的矫治,更适合牙周炎致错(牙合)畸形的矫治.     

Effects of transforming growth factor beta1 (TGFbeta-1) and dentin non-collagenous proteins (DNCP) on human embryonic ectomesenchymal cells in a three-dimensional culture system

Cranial neural crest-derived ectomesenchymal cells represent a population of pluripotent stem cells giving rise to many of the various oro-facial and dental tissues. The factors determining the terminal fate of these cells are still unclear. The potentiality of human embryonic ectomesenchymal cells from the first branchial arch have been investigated when isolated and grown in a three-dimensional (3D)-collagen gel culture system in the presence of dentin matrix-derived non-collagenous proteins (DNCP) and TGFbeta-1. Functional differentiation of cells showing some characteristics of odontoblast-like cells could be observed when the cells were cultured with DNCP+TGFbeta-1 or DNCP, however, only cytological differentiation was observed during culture with TGFbeta-1 alone. The characteristics of these cells was assessed by morphological appearance, expression of the odontoblast phenotype marker dentin sialophosphoprotein (DSPP), increased alkaline phosphatase levels and formation of mineralised nodules in vitro. The results indicate that these embryonic cells from the first branchial arch are capable of responding to the inductive stimulus of DNCP or DNCP+TGFbeta-1 when isolated and grown in the 3D collagen gel culture system. The capacity of the isolated cells to differentiate into mineralizing cells showing some characteristics of odontoblast-like cells under these growth conditions highlights the potential of such approaches for tissue engineering strategies for hard-tissue regeneration after injury.     

口腔扁平苔藓与慢性胃炎关系的临床研究

目的 探讨口腔扁平苔蓟与慢性胃炎的关系。方法 对１２６例扁平苔蓟患者进行上消化道内镜检查与胃粘膜活检。结果 １２２例口腔扁平苔蓟患者有不同类型慢性胃炎，患病率为９６．８％，显著高于人群普查资料（Ｐ〈０．０１）；扁平苔蓟损害类型与胃炎的严重程度有关（Ｐ〈０．０１）；对口腔扁平苔蓟所伴发的慢性胃炎进行治疗后，口腔损害取得改善，总有效率８６．９％，优于氯喹、强的松等传统治疗方法。结论 口腔扁平苔蓟与慢性     

郑健应用四物消风饮加减治疗小儿慢性荨麻疹临床经验

小儿慢性荨麻疹主要是以风团、瘙痒、痒无定处,易反复发作且病程较长为主要临床表现,目前,现代医学以抗组胺药物为主要治疗方法,中医主要以养血祛风为治则,辅以清热、利湿、散寒等治法,郑健教授在临床上擅长用四物消风饮加减治疗小儿慢性荨麻疹,颇有成效。     

慢性不可预计温和应激大鼠microRNA差异表达谱分析

目的探讨慢性不可预计温和应激大鼠模型microRNA（miRNA）表达谱差异。方法采用慢性不可预计温和应激模型,将16只SD大鼠随机分为对照组和应激组,每组8只,对照组常规饲养,不予任何处理,应激组每天随机予1～2种温和刺激,共6周;造模结束后均采用旷场试验评价大鼠行为,安乐处死,取伏隔核低温保存。采用miRNA测序技术比较两组大鼠miRNA表达差异。结果与对照组比较,慢性不可预计温和应激大鼠有25个miRNA显著下调,2个miRNA显著上调。结论慢性不可预计温和应激可能使大鼠部分miRNA表达发生改变。