OBJECTIVE:To improve the quality standard of Naoliqing capsule. METHODS: The Sus scrofa domestica and Achyranthes bidentata in Naoliqing capsule were identified by TLC, and the content of oleanolic acid was determined by HPLC. RESULTS: The characteristic TLC spots of the Sus scrofa domestica and Achyranthes bidentata in Naoliqing capsule were detected. The linear range of oleanolic acid was 0.5～7.5 ?g(r=0.999 6) with an average recovery of 97.43%(RSD=1.94%,n=6). CONCLUSION: The results are conducive to the improvement of the quality standard of Naoliqing capsule.

Objective To establish a method for quality control of Jiangya Yishen Granula. Methods Spanishneedles Herb, Radix Polygoni Multiflori, Fruetus Corni, Radix Scrophulariae, Rhizoma Alismatis and Radix Cyathula were identified by TLC. A method of HPLC to determine 2,3,5,4’-tetrahydroxystilbene-2-0-?-D-glucosid, the main effective component from Radix Polygoni Multiflori, was developed. Results The studies on the quality control showed that the characteristics for identification by TLC were distinct. The quantification method had the linear range of 0.016 3～0.522 ?g (r=0.999 9). The average recovery rate was 99.7%, and its RSD was 0.51%. Conclusion The methods can be used for the quality control of the preparation.

Objective To investigate the effects of collagen concentration and pre-freezing temperature on structure and properties of the scaffold. Method A series of porous collagen scaffolds were fabricated with different collagen concentration and pre-freezing temperature by freezing-drying. The effective pore sizes and other properties of the porous scaffolds were evaluated and compared with each other. Chondrocytes of rabbit were separated and cultured on these scaffolds to evaluate their biocompatibility. Result The collagen scaffolds had interconnected pore ranging from 50 to 200 ?m in pore size. With increasing the collagen concentration density and tensile strength of the scaffolds increased, while pore size and degradation rate of the scaffolds decreased, as well as become less homogeneous. Reducing pre-freezing temperature resulted in smaller poresize and slower degradation rate of scaffolds. MTT analyses demonstrated that all the scaffolds availed to cell attachment and proliferation, while increasing collagen concentration and decreasing pre-freezing temperature evidently restrained chondrocytes attachment and proliferation. Conclusion The collagen concentration and pre-freezing temperature have crucial influence on the structure and properties of collagen scaffolds. The suitable collagen scaffolds were obtained by adjusting the collagen concentration and pre-freezing temperature. The bigger of the pore size was. The faster cell proliferation was achieved.

Objective To explore the regulatory effect of TAK 1 inhibitors on MAPK and NF-κB signaling pathway in diabetic rats and its renal protection mechanism .Methods A total of 48 rats accorded to the random number table method were divided into DN group , TAK1 group and control group ,each group with 16 rats,control group with normal fed , DN group and TAK1 group by the intraperitoneal injection of 1%50 mg/kg STZ DN model rat.8 rats were killed in each group at 4 weeks and 8 weeks respectively ,the pathological changes of renal tissue were observed ,serum TNF-α,MCP-1,IL-1βlevels were detected by enzyme linked immunosorbent assay ,p38MAPK,NF-κBp63 protein expression were detected by Western blotting ,p38MAPK、NF-κBp63 mRNA levels in renal tissue were detected by real time fluorescence quantitative PCR.Results At 4 weeks and 8 weeks, the body weight, blood glucose and UAER of DN group and TAKl group were significantly higher than those in control group (P <0.05).The body weight and UAER of DN group were significantly higher than those of TAK1 group (P <0.05).The serum TNF-α,MCP-1,IL-1βlevels in DN group and TAK1 group were significantly higher than those in control group (P <0.05),and DN group serum TNF-α,MCP-1,IL-1βlevels were significantly higher than those in TAK1 group (P <0.05).The expression levels of p38MAPK,NF-κBp63 protein and mRNA in DN group, TAK1 group were significantly higher than those in control group (P <0.05), and p38MAPK,NF-κBp63 protein and mRNA in DN group was significantly higher than that in TAK 1 group ( P <0.05 ) .Conclusions TAK1 induces inflammation by activating MAPK and NF-κB signaling pathways,and participates in diabetic renal injury . TAK1 inhibitors with anti-inflammatory effect by down regulate the expression of inflammatory factors .

Objective To know the usage situation of traditional Chinese medicine (TCM) injections;To improve the level of rational administration of TCM injections.Methods Totally 2686 medical records of inpatients from Aug. 2012 were randomly selected. Patient genders, ages, medication types, dosage and solvent, etc. were analyzed respectively.Results There are 38 varieties of traditional Chinese medicine injections in this survey. There are 22 varieties of traditional Chinese medicine injections involving the unreasonable usage in solvent, a total of 453 times. The total qualified rate was 80.59%. There are 9 varieties of traditional Chinese medicine injections involving the unreasonable dosage. The total qualified rate was 88.77%.Conclusion In order to guarantee the medication safety, the reasonable usage of TCM injections should be strengthened in the clinic, which can be realized by reading package inserts carefully, prescribing through syndrome differentiation.

BACKGROUND:Under mitomycin C treatment, feeder cells appear to have restricted proliferation, but they are stil able to secret different cytokines. Non-mesenchymal stem cells from the bone marrow and secreted factors in plasma maintain the micro-environment suitable for the growth of mesenchymal stem cells that can improve the yield of mesenchymal stem cells.
OBJECTIVE:To study the biological characteristics of C57 mouse bone marrow mesenchymal stem cells isolated using a whole bone marrow adherent culture technique.
METHODS:Using the whole bone marrow adherent culture technique, purified and amplified C57 mouse bone marrow mesenchymal stem cells were harvested. cellproliferation kinetics, immune cellsurface markers, multiple differentiation potential and cellcycle were detected.
RESULTS AND CONCLUSION:Using the whole bone marrow culture, mouse bone marrow mesenchymal stem cells were harvested and capable of adhering to the plastic culture vessel. The obtained cells expressed CD45, CD105 and Sca-1, but were negative for CD34, CD33 and C-kit. The doubling time was (57.11±1.5) hours. The cells could be induced to differentiate into osteoblasts, adipocytes and chondrocytes. The cellcycle analysis showed that 64%of cells were in G 0-G 1 phase. These indicates that C57 mouse bone marrow mesenchymal stem cells isolated using a whole bone marrow adherent culture technique have biological characteristics of mesenchymal stem cells.

Objective To investigate the risk factors for cerebral microbleeds (CMBs) and its correlation with the 24 h microalbuminuria (mALB) in patients with small artery occlusion (SAO).Methods The patients with SAO were enrolled.CMBs were detected with susceptibility-weighted imaging.The demographic and clinical characteristics and 24 h mALB of the patients were compared.Multivariate logistic regression analysis was used to identify the independent risk factors for CMB in patients with SAO.Spearman correlation analysis was used to investigate the correlation between the 24 h mALB and the degree of CMBs.Results A total of 90 patients with SAO were enrolled and 35 patients (38.89％) had CMBs.CMBs mainly distributed in basal ganglia/thalamus and infratentorial (62％) regions.The Age (70.8 ± 5.4 vs.67.3 ± 8.1; t =2.461,P =0.016),proportion of hypertension (80.0％ vs.52.7％ ;x2 =6.851,P =0.009),and 24 h mALB levels (16.257 ± 6.031 mg/24 h vs.11.910 ±5.458 mg/24 h; t =3.536,P =0.001) in the CBM group were significantly higher than those in the non-CMB group.Spearman rank correlation analysis showed that the 24 h mALB and the severity of CMB in patients with SAO showed a significant positive correlation (rs =0.795,P =0.000).The higher the 24 h mALB level was,the more severe the CMB degree would be.Multivariate logistic regression analysis showed that only 24 h mALB was the only independent risk factor for CMBs in patients with SAO (odds ratio,1.100,95％ confidence interval 1.031-1.176; P =0.002).Conclusions The 24 h mALB is an independent risk factor for CMB in patients with SAO.The 24 h mALB level is positively correlated with the severity of CMB,and it may be used as a marker for small vascular injury.

Objective To evaluate the effect of mini-abdominal incision for choledochoscopy via cystic duct in exploration of the common bile duct(CBD).Methods The right subcostal incision was 4-6 cm in length.Choledochoscopy via cystic duct stump for exploration and extraction of CBD stones was done in 135 cases.Results The CBD stone was removed in 109 of 135 patients(80.7%).The CBD exploration was negative in 26 cases(19.3%)and retained CBD stones occurred in 4 cases(3.0%).One case(0.7%)had intraoperative injury of common bile duct,2 cases(1.5%)had tear of cystic duct stump,and 2 cases(1.5%)had biliary leakage,all the 5 cases were recovered after treatment.Conclusions The mini-abdominal incision with choledochoscopy via cystic duct for exploration of the CBD is safe and feasible.

OBJECTIVE: To study optimal formulation process of Rutongning granule. METHODS: The ratio of main components to excipients was optimized with hygroscopicity,granulation and dissolubility index. RESULTS: The optimal ratio of extract powder to saccharose was 1 ∶ 1.5. The made granules were characterized with low hygroscopicity, high granulation,high dissolubility and low cost. And its critical relative humidity was 65%. CONCLUSION: The study provides theory evidence for formulation process of Rutongning granule and the control of production environment.

Objective To analyze the clinical features of patients with acute ST-elevation myocardial infarction treated with percutaneous coronary intervention (PCI) complicating to intraoperative reperfusion arrhythmias (RA).Methods A total of 175 patients with acute ST-elevation myocardial infarction were treated with PCI performed from January 2008 to September 2013.According to the occurrence of RA following PCI,the patients were divided into RA group and non-RA (NRA) group.Comparison of myocardial enzymes,peak troponin,the elevated ST segment returning back,length of hospital stay,incidence of adverse events such as cardiac death,shock,heart failure during hospitalization and within a month of postoperative period was carried out between groups,and the findings from echocardiography on the 30th day after PCI were also compared between two groups.Results PCI time window in RA group was significantly earlier than that of NRA group,and reperfusion arrhythmia was effectively controlled.Compared with NRA group,RA group had greater extent of ST segment normalized,and tbe incidence of adverse events was lower.On the 30th day after PCI,RA group had shorter duration of left ventricular diastole,and reduced left ventricular cavity dimensions and higher ejection fraction (LVEF) value.Conclusions Reperfusion arrhythmias occur immediately after PCI in patients with acute myocardial infarction,but as long as the PCI carried out timely,the prognosis is good.