Objective To investigate the effect of amyloid on the expression of kinesin superfamily(KIFs) genes in cortex of Wistar rats. Methods The animal model of Alzheimer's disease was prepared by injection of amyloid into brain ventricle of rats.The learning impairments were verified by water maze test.The levels of mRNA for six kinesin superfamily genes,kinesin,KIFlb,KIFlc,KIF3a,KIF3c,and KIF4,in cortex of rats,were estimated by real-time RT-PCR. Results Two weeks after amyloid injection,the rats showed significant learning impairments.In cortex,the expression of KIF genes was increased after amyloid injection.Conclusion\ The increase of KIF gene may be an evidence for the excitotoxity of amyloid to neurons.

The human sphincter of Oddi has been known for more than a century.The sphincter regulates periodic discharge of bile and pancreatic juice and their directional flow.Research on the sphincter is still inadequate,especially on how to accurately evaluate its function,dysfunction and effective treatment.In recent years,advances in anatomy,regulation and improvements in investigation have deepened our understanding of diagnosis and treatment of sphincter of Oddi dysfunction. This paper summarizes the new developments in this field.

Objective To explore the clinical effect of hemodialysis combined with hemoperfusion in treatment of secondary hyperparathyroidism. Methods 32 patients with secondary hyperparathyroidism were selected and randomly divided into two groups:the observation group(16 cases) and the control group(16 cases). The patients in the observation group were treated with hemodialysis combined with hemoperfusion, and in the control group, the patients were treated with conventional hemodialysis. Then the levels of serum phosphorus, serum calcium, serum intact parathyroid hormone(iPTH) and skin itching,and weakness and so on were compared. Results After treatment,the level of iPTH in the observation group decreased significantly(P ＜ 0.05) ,but in control group it decreased not obviously, and compared with it before treatment there was no significant difference. After treatment, in the two groups the level of serum phosphorus was significantly lower(P ＜0.05) ,and the level of serum calcium was significantly higher (P ＜ 0.05), and the level of serum phosphorus and iPTH had significant differences between the two groups (P ＜0. 05) ,while no significant difference in serum calcium. In the observation group,skin itching,muscle weakness and other symptoms were improved significantly compared with those in the control group (P ＜ 0.05). Conclusion Hemodialysis combined with hemoperfusion in treatment of secondary hyperparathyroidism was very effective.

Objectives To provide outline for the Research & Development department of hospitals making research strategy by analyzing the quantity of publications and their cited status for the top 20 hospitals in SCI and MEDLINE, and the top 100 hospitals in domestic publications in 2008. Methods The number of publications and their cited times for the first 20 hospitals in SCI and MEDLINE, and the top 100hospitals in domestic publications in 2008 were analyzed with bibliometric analysis. Results Compared with 2007, the increased number and ratio of publications in SCI and MEDLINE for the top 20 hospitals were 1050, 51.19% and 658, 15.04%, respectively; for top 100 hospitals, the average decreased number of domestic publications was 2.08, and the number of cited publications was increased 202.52 and the increased ratio was 13.51%. Conclusions The SCI publications from top 20 hospitals increase sharply, the increase of the MEDLINE articles from the top 20 hospitals is slowly. The negative growth is showed in the number of domestic articles for the top 100 hospitals. In addition, the increase of cited articles is slowly and disproportion.

Objective To explore the expression of cell apoptosis regulatory elements in esophageal canceration course. Methods 60 specimens of esophageal carcinoma and corresponding adjacent no cancerous tissue were detected quantitatively by propidium iodide(PI) stain and indirect immunofluorescence of fluorescein isothiocyanate(FITC) using flow cytometry(FCM) equipment. Results Expression of bcl-2 and c-FLIP in esophageal carcinoma was significantly higher, and Fadd, Caspase-8 and Caspase-3 were significantly lower than that in adjacent tissues (P <0.01). There was positive correlation between Fadd and Caspase-8 gene (P <0.01 or P <0.05). The expression of Fadd was positively correlated to Caspase-8. Comparing with normal epithelium and dysplasia tissue, DNA content and heteroploid cells were increased significantly in esophageal carcinoma. Conclusion During the esophageal canceration course, expressions of relevant cell apoptosis regulatory elements were abnormal. DNA content and heteroploid cells were increased significantly in esophageal carcinoma.

Objective To investigate the authors, the institution and endemic distribution of these authors of Chinese Journal of Orthopaedics, and understand the current situation and problems in the field of Orthopaedics. Methods The authors, the co-authors and the core authors of papers published in Chinese Journal of Orthopedics from 2005 to 2009 were quantitatively analyzed using literature search through CMCI.The distribution of institution, region and highly quantitative organization were also analyzed. Results The 1182 papers were published by the Journal within 5 years. There were 1108 papers with one or more co-authors; the cooperative rate and degree were 93.74% and 5.02, respectively. 74 papers were written by single author, which accounted for 6.26% of all papers. 615 authors (75.18% of all first authors) published only one paper. There were 295 (24.96%) papers from 67 (8.19%) core authors. 601 (50.85%) papers were from 20 high-productivity institutes. The top three high-productivity institutes were Tianjin hospital, Beijing Jishuitan hospital and Nanjing Drum Tower hospital of Nanjing University Medical School. The number of papers were 89 (7.53%), 75 (6.35%) and 43 (3.64%), respectively. The number of papers from the teaching hospital,provincial or municipal hospitals, military hospitals were 722 (61.08%), 226 (19.12%) and 157 (13.28%),respectively. According to the distribution of Province, Beijing was the first of place with 264 (22.34%) papers, followed by Shanghai by 160 (13.54%) papers and Tianjin by 136 (11.51%) papers. The distribution range of the authors has been expanded to five countries. Conclusion The influence of the Chinese Journal of Orthopaedics has greatly increased. Authors of the Chinese Journal of Orthopaedics have a highly cooperative rate. There is a group of active and talented core authors who has a great influence on the journal. But the number of core authors and the papers published by core authors need to be expanded.

Objective To investigate the moderator of children' s perceptions quality of parental involvement on parenting style and children' s sport expectancy-value beliefs.Methods 595 students of grade 2 to 6 from five elementary schools were chosen and analyzed.Data were analyzed by SPSS16.0 software packet using independent sample t test,One-Way ANOVA,correlation analysis and hierarchical regression statistical analysis of regulation.Results Children' s expectancy beliefs was predicted by authoritarian and behavior encouragement(β=0.076,t =2.35,P=0.019 ;β =0.111,t =3.748,P =0.000).Children' s value beliefs was predicted by affect -warmed and behavior encouragement (β =0.070,t =2.883,P =0.004 ;β =0.070,t =2.745,P =0.006).Children' s sport behavior was predicted by trust-encouragement(β=0.294,t=3.193,P=0.001).The prediction of expectancy beliefs was significant positive by the interaction between indulgence and time involvement (β=0.078,t =2.065,P =0.039).The prediction of expectancy beliefs was significant negative by the interaction between authoritarian and time involvement(β=-0.084,t =-2.454,P=0.014).The prediction of expectancy beliefs was borderline significant positive by the interaction between neglecting and equipment provision(β=0.073,t =1.94,P =0.053).Conclusion Different parenting styles are significant predicators of children sport involvement.Children' s perceptions quality of parental involvement play an important role on parenting style and children' s sport expectancy-value beliefs.

In mice, adriamycin (l7.5mg/kg, ip ) produced heart peroxida-tion abnormality including increased TBA value & decreased gluta-thione peroxidase activity, respectively. But the change of former was not parallel to the latter. The drug also produced early pathological change of the heart i.e. more D-PAS positiveness. The results suggested that the early heart pathological change produced by adriamycin may be related to increased accumulation of pero-xi dative products.

Extensive use of tributyltin (TBT) has caused serious environmental pollution, which is harmful to human and other organisms. As a cytotoxic chemical, an important mode for TBT effects on the cells is to induce apoptosis. The present paper mainly reviewed the mechanism by which TBT induces apoptosis at low concentration.

Kawasaki disease is a systemic inflammatory disease of small and medium vessels in children under 5 years of age, which is also one of the most common causes of acquired heart disease in children.Stem cells are a kind of multipotential cells with the ability of self-renewal, self-replication and multi-differentiation.They are important biomaterials in modern regenerative medicine and tissue engineering.So far, substantial studies have found that stem cells such as endothelial progenitor cells, induced multifunctional stem cells, adipose-derived stem cells and so on are involved in the regulation of the pathogenesis of Kawasaki disease and play an important role in anti-inflammation and protection of the vascular endothelial cell damage.The potential of stem cells is gradually being developed and applied to the diagnosis and treatment of Kawasaki disease.However, the pathogenesis and treatment of stem cells in Kawasaki disease are not fully understood, and more basic and clinical trials are still needed.