Objective To study the role of dependence of stromal cell derived factor‐1(SDF‐1) on myocardial infarction an‐giogenesis and function recovery .Methods The rats were randomly divided into the test group (65 cases) and the treatment group (64 cases) ,in which 5 rats in the test group were randomly killed on 1 ,2 ,4 ,7 ,14 ,28 d before and after myocardial infarction(infarc‐tion group) and the SDF‐1 protein level was detected .At the same time the sham operation group(5 cases) was set up;64 rats in the treatment group were randomly divided into four groups ,16 cases in each group ,which were infarction+SDF‐1 group ,infarct+anti‐SDF‐1 group ,infarct+normal saline group and normal+normal saline group .After the corresponding processing in each group ,the SDF‐1 levels after myocardial infarction ,MSCs homing amount ,neovascularization density ,EF and FS levels were compared among various groups .Results The SDF‐1 level after 1-7 d in the infarction group was significantly higher than that in the sham opera‐tion group ,and reached a peak level ,then decreased gradually and restored to normal on 14 d ,the difference was statistically signifi‐cant (P<0 .05) .The MSCs homing amount and neovascularization density level in the SDF‐1 treatment groups were significantly higher than those in other groups ,which in the infarction+anti‐SDF‐1 group were significantly lower than those in the infarction+normal saline group ,the differences were statistically significant (all P<0 .05) .The cardiac function improvement situation in the infarction +SDF‐1 group was significantly better than that in other groups ,the difference was statistically significant (P<0 .05) . Conclusion SDF‐1 can promote angiogenesis in myocardial infarction ,also improve the heart function .

This article aims at discussing the situation and future of traditional Chinese medical theory. By comparing the differences of the concept and knowledge about mind between traditional Chinese medicine (TCM) and western medicine, the debate about the source and destination of "brain governing mind" and "heart governing mind" were analyzed and the meaning of mind was thoroughly explained. It is concluded that in the theory of TCM mind is the essence of life. To develop the theory of TCM, the eoncept of TCM terminology should be understood thoroughly; it should be neither misused nor applied mechanically. Only having a good and correct beginning, can the development of TCM theory and its guidance in clinic be achieved.

Objective To prepare chitosan (CS)-compound Yizhihao-nanoparticles (NP) and to investigate its antibacterial activity. Methods CS NPs were formed by the incorporation of CS and Na3PO4. CS-compound Yizhihao NPs were prepared by ion-cross-linking. The particle sizes and surface charges of CS NPs were determined by Malvern Zetasizer 1000-HAS and atomic force microscope (AFM), respectively. The antibacterial acitivity of CS-compound Yizhihao-NPs was studied in vitro and compared with that of compound Yizhihao powder. Results Malvern Zetasizer 1000-HAS and AFM demonstrated that the diameter of CS-compound Yizhihao NPs was (137.00±14.28)nm and CS NPs had (16.90±1.32)mV positive surface charges. The minimal inhibitory concentrations (MIC) of CS-compound Yizhihao NPs on Staphylococcus aureus,Pneumococcus,β-hemolytic streptococcus, and Escherichia coli were 1:32,1:32,1:16,and 1:2,respectively. The minimal bactericidal concentrations (MBC) of CS-compound Yizhihao-NPs on Staphylococcus aureus,Pneumococcus,β-hemolytic streptococcus, and Escherichia coli were 1:16,1:16,1:8, and 1:2,respectively. The antibacterial efficacy of CS-compound Yizhihao-NPs to Staphylococcus aureus,Pneumococcus,and β-hemolytic streptococcus had been improved significantly (P<0.05). Conclusion CS-compound Yizhihao-nanoparticles have obvious antibacterial activity to the Staphylococcus aureus,Pneumococcus,and β-hemolytic streptococcus,which lays the experimental foundation for new preparation of traditional Chinese medicine in future research.

Objective:To detect expression level of miR-410 in patients with systemic lupus erythematosus (SLE),and to expose the role of miR-410 and its target genes by bioinformatics methods.Methods:Expression level of miR-410 were detected by quantitative RT-PCR in peripheral blood mononuclear cells of SLE patients,and miR-410 sequence,its target genes and Genecards database were analyzed,and analysis of GO enrichment and KEGG Pathway was further performed.Results:miR-410 expression was significantly reduced in SLE patients,and its nucleotide sequence was highly conserved among species.These genes that were predicted to be regulated by miR-410 and associated with LE pathogenesis,included FASLG,CSF2,IFNAR2,MAPK1,PLCG2,IL4 and other genes.Analysis of GO enrichment revealed that miR-410's target genes were involved in cell growth,proliferation,programmed cell death,cell differentiation,immune system development and other biological activities.Analysis of KEGG Pathway showed that the target genes of miR-410 were significantly enriched in a series of signaling pathways including pathways in cancer,cytokine-cytokine receptor interaction,glioma,melanoma,TGF-β and JAK-STAT signaling pathway.Conclusion:miR-410 maybe directly regulate its target molecules,mediate various signal pathway networks,thus participate in the occurrence and development of SLE.

Objective: The scavenging capacity of free radicals by enzymes-hydrolyzed wheat bran (EHWB) and its protection against DNA damage were studied in vitro. Method: EHWB, prepared by hydrolyzing de-starched wheat bran using enzymes from Aspergillus niger fermentation, was used to test its scavenging capacity of free radicals and protection against DNA damage caused by hydroxyl free radical in vitro. Results: The capacity of scavenging free radicals by EHWB was shown, and EHWB could protect DNA damage caused by hydroxyl radicals. Conclusion: EHWB has higher free radicals scavenging capacity.

0.05). Conclusion The quality of life of SARS patients was not high one month after discharged. The patients needed the further rehabilitation treatment including restoration of function and appropriate psychological treatment.

To separate the overlapped protein spots in two-dimensional gel electrophoresis (2-DE) images, we proposed an auto-separating algorithm based on valley characteristics. Firstly, the marker-controlled watershed algorithm was used to detect the initial outlines of the object regions. Secondly, medial axis transform and hierarchical branch pruning method were applied to the main skeletons of the object regions, and each main skeleton was fitted into line segments to describe the overlap directions. Then, the 3-dimensional model of the object region was scanned on the normal planes of the line segments to find the valley locations. And finally, a validation model was adopted to construct separation lines. The experiments on 2 real scanned 2-DE images showed that the true overlap separate (TOSs) were 78.95% and 85.71%, respectively. The results indicated that the proposed algorithm was better than the existing algorithms and could be used in engineering practice.
Algorithms ; Electrophoresis, Gel, Two-Dimensional ; Proteins ; chemistry

Objective To understand the origin and variation of the hemagglutinin gene of isolates viruses from 3 novel influenza A( H1N1 ) deaths in Changsha ( A/Hunan Kaifu/SWL4142/2009 ( H1N1 ) , A/Hunan Changsha/SWL4346/2009 ( H1 N1 ) and A/Hunan Furong/SWL4224/2009( H1N1 )). Methods The nasopharyngeal swab specimens from the 3 novel influenza A( H1N1 ) deaths in Changsha were tested by RT-PCR and influenza viruses were isolated simultaneously. With the sequencing primers recommended by World Health Organization (WHO), the HA gene of sequences of 3 novel influenza A( H1N1 ) deaths were tested by CEQTM 8000 Genetic Analysis System, through dye terminator cycle sequencing. The sequencing results were submitted to GenBank, then the results were analyzed for amino acid alignment and phylogenetic tree analysis with ClustalX and Mega4.1 software. Results All the nucleotide homologies of HA gene sequences in A/Hunan Kaifu/SWL4142/2009 ( H1N1 ), A/Hunan Changsha/SWL4346/2009 ( H1N1 ) and A/Hunan Furong/SWL4224/2009( H1N1 ) are 99% as compared with the novel influenza A( H1N1 ) virus strains of A/NewYork/3502/2009 ( H1N1 ), A/Shanghai/71T/2009 ( H1N1 ) and A/Chita/01/2009 ( H1N1 )The nucleotide homology of the 3 HA gene sequences are more than 99. 5% the same compared with the novel influenza A( H1N1 ) virus strain ( A/Sichuan/1/2009( H1N1 ) ) in China. Phylogenetic tree analysis reveals that 2009 novel influenza A(H1N1 ) viruses including 3 HA gene sequences of A/Hunan Kaifu/SWL4142/2009 ( H1 N1 ), A/Hunan Changsha/SWL4346/2009 ( H1N1 ), A/Hunan Furong/SWL4224/2009( H1N1 ) had a close evolutionary relationship with the swine H1 virus isolates in North America ( A/Swine/Indiana/P12439/00), but a distant evolutionary relationship with those human seasonal A( H1 N1 ) influenza virus and avian. After comparing with genes of A/Swine/Indiana/P12439/00, we found that the HA gene sequences of the 3 viruses isolated had 28,30 and 27 amino acids with mutation respectively, but only one (R53K) amino acids mutation at 21 important antigenic sites in the 3 viruses isolated. Multiple alignment of 364 HA genes sequences of novel influenza A ( H1N1 ) viruses in the world showed they had 119 nonconserved amino acids, 5 non-conserved position at important antigenic sites. Conclusions The HA gene sequences from 3 viruses isolated in this study and other influenza A ( H1N1 ) viruses might originate from swine A( H1N1 ) in North America by variation. The 3 HA gene sequences of viruses isolated have high homology as compared with the novel influenza A ( H1N1 ) virus strains worldwide, and the 3 HA gene sequences of viruses isolated are in stable condition as the vast majority of novel influenza A( H1N1 ) virus strains in the world.

Objective:To reveal the behavior characteristics of health delivery system(HDS) and the dynamical mechanism by which HDS promoting population health,so as to provide theoretical and methodological evidences for the decision-making of national macro health system.Methods: The macro model of HDS was constructed by using the theory of complex system and the method of system dynamics.Results: The principle of "high coverage and reasonable quality" was put forward as developmental strategy of national health service.The improvement of population health was taken as the system objective of HDS;meanwhile,HDS was community-centered and city-country integrative.The macro model of HDS was constructed based on the above objectives.Conclusion: Modeling based on system dynamics is effective to reveal the complexity of health delivery system.The HDS complex system model constructed in this article can be used to analyze and interpret the behavior characteristics of HDS and the dynamic mechanism by which HDS promoting population health.

Objective To investigate the adsorption function of macroporous adsorption resins for the separation and purification of the effective components in Plumula Nelumbinis. Methods AKS-W, AB-8, and H214 resins were systematically studied for their adsorption capability, and the contents of the liensinine, isoliensinine, and neferine were determined by HPLC. Results AKS-W Resin had a preferable adsorptive and separateive effect for the effective components in Plumula Nelumbinis. The products containing 10.2% liensinine, 6.7% isoliensinine, and 11.9% neferine could be obtained. Conclusion Macro-porous-type and non-polar adsorption resin AKS-W is an ideal adsorbent for the extraction of the effective components in Plumula Nelumbinis.