Supernumerary tooth is common,but symmetrical supernumerary tooth on both sides is rare.A case of symmetrical supernumer-ary tooth of maxillary posterior teeth area is reported in this paper.

Objective:To determine whether alpha-fetoprotein(AFP) messenger RNA(mRNA),a specifically hepatocyte-expressed gene,could be a marker of metastasis in hepatocellular carcinoma. Methods:Peripheral blood samples were obtained from 30 patients with hepatocellular carcinoma (HCC).A sensitive reverse transcription polymerase chain reaction( RT-PCR) technique was used to detect the human AFP mRNA in the blood.Results:Of the 30 HCC patients,14(46.7%) patients had positive AFP mRNA.The presence of AFP mRNA correlated with the TNM clinical stages,the size of tumor,extrahepatic metastasis or with portal vein carcinothrombosis(P0.05).Conclusion:The positive of AFP mRNA in the peripheral blood can indicate the presence of hematogenous metastasis in patients with HCC.

The external and internal characteristics of domestic master and doctorial papers on rheumatoid arthritis were analyzed by visualization analysis, which revealed the publication of and hotspots and frontiers in domestic master and doctorial papers on rheumatoid arthritis, and can thus provide reference for the development of medical information resources and recent advances in rheumatoid arthritis for the broad masses of scientific workers.

OBJECTIVE:To optimize the forming technology of Tongtong granules.METHODS:The category and ratio of the adjuvants were optimized taking moisture absorption percentage as index;the forming technology of Tongtong granules was optimized by orthogonal experiment with forming rate and moisture absorption percentage as indexes and with the ratio of extract to adjuvant,the concentration and amount of ethanol as factors.RESULTS:The optimal ratio of lactose to dextrin was 3:2.The optimal forming technology was as follows:the ratio of extract to adjuvant was 1:2;70%alcohol was used as the wetting agent with its amount at 12%(mL?g~(-1)).The Tongtong granules mobility enjoyed good flowability with a critical relative humidity of about 70%.CONCLUTION:The forming technology is feasible,stable,reasonable and reproducible and it serves as theoretic basis for industrial production.

OBJECTIVE:To observe the therapeutic effect of IF ?-2b plus compound glycyrrhizin on chronic hepatitis C. METHODS:56cases of chronic hepatitis C were divided into trial group(30cases)and control group(26cases).Trial group received IF ?-2b +compound glycyrrhizin and control group received IF ?-2b alone.The therapeutic course was24weeks in both groups.RESULTS:There was significant difference in recoversion rate of ALT between two groups either at the end of ther?apeutic course or24weeks after treatment(P

Cerebral amyloid angiopathy is closely associated with intracerebral hemorrhage. In recent years, a further understanding of etiology, pathogenesis, diagnosis and treatment on cerebral amyloid angiopathy-related intracerebral hemorrhage has been achieved.

Objective To investigate the relationship between the expressions of TMPRSS4 and clinical pathologi-cal parameters in gastric carcinoma. To explore its significance in judging the prognosis of patients. To analyze the expression of TMPRSS4 in the epithelial-mesenchymal transition. Methods The expressions of TMPRSS4, E-cad-herin and Vimentin were detected by immunohistochemistry ( SABC) in 100 cases of gastric carcinoma specimens and corresponding adjacent normal tissue. Results In gastric carcinoma, TMPRSS4, E-cadherin and Vimentin positive rate was 47%,45%,37%. In adjacent tissues,their positive rate was 9%,30%,4%. The differences be-tween tumor tissues and adjacent tissues had statistical significance ( P<0.05 ) . High expression of TMPRSS4 cor-related significantly with lymph node metastases and TNM stage (P<0.05), but not with gender, age, size, tumor histological type,depth of invasion (P>0.05). The 5-year survival rate of patients with high TMPRSS4 expression was significantly lower than that in patients with low expression. The high TMPRSS4 expression was significantly correlated in gastric carcinoma accompanied by low expression of E-cadherin (rs = -0.207,P=0.038) and high Vimentin expression (rs=0.233,P=0.020). Conclusion The expression of TMPRSS4 is closely related to the biological characteristics in gastric carcinoma,detection the expression of TMPRSS4 is valuable in predicting tumor prognosis,invasion and metastasis. TMPRSS4 may promote invasion, metastasis of human gastric carcinoma through epithelial-mesenchymal transition by reduce the expession of E-cadherin.

BACKGROUND: The wear resistance and hardness of artificial tooth would affect repairing effects in clinic. However, there is lack of professional standard for resin teeth in China.OBJECTIVE: To provide a theoretic foundation for the choosing of the resin teeth in clinic via comparing the wear resistance and hardness among 7 different resin teeth.DESIGN, TIME AND SETTING: A contrast observation. The experiment was performed at the laboratory of Mechanical Engineering College, Shanghai Jiao Tong University from November 2003 to May 2004.MATERIALS: A total of 7 kinds of different resin teeth were selected, namely, hard multi-layer synthetic resin teeth (A); multi-layer synthetic resin teeth (B); synthetic resin teeth (C); EMDURA resin teeth (D); three-layer synthetic resin teeth (E); optostar four-layer synthetic resin teeth (F); and Cosmo HXL (G).METHODS: The wear test was processed by a pin-plate wear machine. The result was measured by the weight loss through wearing and the surfaces of the wear scar were observed by a scanning electronic microscope (SEM); hardness was measured by Knoop hardness. Meanwhile, the relativity between the hardness and wear resistance of resin teeth was analyzed.MAIN OUTCOME MEASURES: The wear resistance and hardness of resin teeth.RESULTS: According to the weight loss and SEM examination, the wear resistance of the different resin teeth was D>A>G>E>B>F>C; and the hardness of different resin teeth was D>A>G>E>F>B>C. The correlation coefficient between the weight loss and hardness was -0.888 (P < 0.01).CONCLUSION: The variation of the wear resistance of the resin teeth may influenced by their different components, molecular weight and manufacturel methods. There are positive correlation between the hardness and wear resistance of resin teeth.

BACKGROUND:Nonunion is a common clinical problem of bone fracture. For decades, with the help of
internal/external fixation materials, popularization of microsurgical technique, innovation of bone graft materials, especial y molecular biology techniques, breakthrough progress has been made in the treatment of nonunion. OBJECTIVE:To summarize the research progress of treatment in nonunion and to provide better technology theory and choices of method for the treatment of nonunion in future.
METHODS:The PubMed database and CNKI database were retrieved by the first author for the articles related to reason and treatment method of nonunion published from January 1990 to May 2013. The key words were
“fracture nonunion, treatment, progress”. For the articles in the same field, those published recently or in authorized journals were selected.
RESULTS AND CONCLUSION:The repetitive and old articles were eliminated, and final y 48 articles were selected for further analysis. At present, two methods can be used in the treatment of nonunion, including
nonsurgical method and surgical method, the surgical method is utilized more frequently and more efficiency in clinic. Fracture healing is the complex process involving various aspects, and once the nonunion occurred,
different patients should be treated with different methods, and the combination of various surgical and
nonsurgical methods can be used if necessary to obtain satisfactory effect. But al the treatment methods should pay attention to soft tissue protection.