Based on the analysis of the common problems which exist in the military hospital medical cooperative projects, five countermeasures are put forward. Firstly, the basic principles for cooperation should be grasped accurately. Secondly, the management system should be perfected. Thirdly, the feasibility of the projects should be augmented enough. Fourthly, the clauses of the contracts should be checked strictly. Lastly, the supervision and management should be enhanced actively in the period of the cooperation.

Objective To observe the effects of different folate levels on inorganic arsenic-induced cytotoxicity and oxidative stress status. Methods Chang human hepatocytes were cultured with 20 ?mol/L sodium arsenite (NaAsO2) in medium containing 0 ?mol/L, 2.3 ?mol/L and 10 ?mol/L of folate, respectively. After 24 h of treatment with NaAsO2, cell viability was analyzed with 3- (4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method, apoptosis was assessed by Annexin V/PI double staining, levels of ROS were detected by 2’,7’-dichlorodihydrofluorescein diacetate (DCFH-DA) probe, and intracellular reduced glutathione (GSH) and malondialdehyde (MDA) content were determined by DTNB method and formation of thiobarbituric acid reactive substances, respectively. Results The decrease of cell viability and the increase of intracellular ROS and MDA induced by NaAsO2 were significantly exacerbated by folate deficiency but attenuated by folate supplement (P

Objective To investigate the present status of Chinese patent medicine with realgar (As2S2) and to research arsenic dissolution in different pH values. Methods Data on the amount of Chinese patent medicine with realgar, the content of realgar, the method of taking medicine and so on were collected from the Chinese traditional medicine protection and criterions issued by the Chinese Ministry of Health in 2005, and evaluated the using status of Chinese patent medicine with realgar. The realgar powder was dissolved in solutions at different pH values (1, 3, 5, 7, 9, 11) in 37℃ water for 4 h, respectively, then arsenic was determined with cold trap hydride generation atomic absorption spectrometry to calculate the amount of dissolved arsenic. Results One hundred and twenty-one (3.13%) realgar medicaments were recorded in a total of 3 860 various Chinese patent medicaments, including 74 medicaments with both realgar and cinnabar (HgS) . Of all medicaments with realgar, 97 medicaments (80.17%) were for oral application, 10 medicaments (8.26%) were for external application, and 14 medicaments (11.57%) were for both oral and external application. 45 medicaments with realgar (1.17%) could be used in children; 108 medicaments with realgar (89.26%) contained arsenic 15%; The relative amount of arsenic in medicaments with realgar was from 0.46% to 27.52%. Daily intake of arsenic was 500 mg for 11 medicaments (9.09%). Only inorganic arsenic (iAs) was detected when 1 mg realgar was dissolved in solution with pH values of 1, 3, 5, 7, 9, 11. The levels of dissolved iAs seemed increased with the pH values, which were 1.58 ?g, 1.24 ?g, 1.57 ?g, 1.62 ?g, 2.28 ?g and 4.76 ?g, respectively. Conclusion Considering the common use of realgar in Chinese patent medicine and the high level of arsenic in realgar, the potential danger can not be ignored. It is possible that arsenic in realgar may be much easier to be absorbed in intestine than in stomach.

This paper is devoted to discussing two research patterns of biological basis of traditional Chinese medicine syndrome and presenting a research strategy for data mining methods. It points out that data mining methods which are based on feature selection are better fit for investigating biological basis of traditional Chinese medicine syndrome. Based on such a discussion, the concept of "characteristic pattern" is proposed to bridge the gap between "golden index" and biological basis of traditional Chinese medicine syndrome. This paper presents a novel research avenue for investigating biological basis of traditional Chinese medicine syndrome.

Objective Chromatography fingerprint of Radix Codonopsis of different age from Shanxi province was studied to provide the reference for the science appraisal of intrinsic quality of Radix codonopsis. Method A RP-HPLC method was applied on GraceSmart-RP18 (250 mm?4.6 mm, 5 ?m) column with acetonitrile-0.1% acetic acid gradient elution as mobile phase, and the flow-rate was 0.6 mL/min. The detection wavelength was at 268 nm and the column temperature was at 30 ℃. Result Chromatography fingerprint of Radix Codonopsis can demonstrate obviously the difference and the similarity of Radix Codonopsis of different age. The RSD were lower than 3% in the precision, stability and the repetitiveness trial, and the codonopsis pilosula alkyne glucoside can be used as the reference to identify the active composition of Radix Codonopsis. Conclusion The method was simple, reproducible and reliable. The integrity of fingerprint can be used to supply the reference for the quality control of Radix Codonopsis from Shanxi provice.

Objective:To investigate the relationship between antibiotics use and antimicrobial resistance of Acinetobacter bauman-nii to provide reference for rational antibiotics use. Methods:The DDDs of antibiotics in the inpatients and the drug resistance rate of A. baumannii were analyzed in our hospital from 2010 to 2014. The relationship between the antibiotics use and the antimicrobial re-sistance of A. baumannii was analyzed by SPSS 19. 0. Results:From 2010 to 2014, the total DDDs of antimicrobials in our hospital were decreased year by year in the first three years, while increased significantly in the last two years. The total DDDs of cephalospo-rins always ranked the first and the DDDs of carbapenem were increased year by year. The resistance rate of Acinetobacter baumannii a-gainst multiple antibacterials was increased in varying degrees in the past five years. In addition to levofloxacin, cefoperazone/sulbac-tam and tigecycline, the resistance rate against the other antibacterials was increased up to 50% in 2014. The resistant rate of A. bau-mannii against ciprofloxacin, gentamycin, cefepime, imipenem and tazobactam/piperacillin presented a positive correlation with the DDDs of cephalosporins and quinolones(P<0. 05). The resistance rate of A. baumannii against cefepime, imipenem tazobactam/pip-eracillin and levofloxacin was also positively correlated with the DDDs of carbapenem(P<0. 05). Conclusion: Antibiotics consump-tion is related to drug resistance of A. baumannii,so it is necessary to strengthen the management of clinical antibiotics use to decrease the multidrug-resistant strains.

The physiological and bio-marker function of D-acidic amino acids is now becoming the hot topic on metabolomics study and new drug discovery. A fully automated two-dimensional high performance liquid chromatography (2D-HPLC) system was established by using monolithic ODS column as the first dimension column, acetonitrile-trifluoro acetic acid-water (9: 0. 05: 92, V/ V) as the mobile phase; micro Chiralpak QD-1-AX column as the enantiomer separation column, 10 mmol/ L citric acid in methanol-acetonitrile (50: 50, V/ V) as the mobile phase for the second dimension, 4-fluoro-7-nitro-2,1,3-benzoxadiazole (NBD-F) as the fluorometrical derivative reagent. The separation efficiency ( Rs > 2. 5), determination sensitivity ( LOD =1 fmol) of acidic amino acids enantiomers were higher than those of existing methods, and an online confirmation of the enantiomers amounts was also achieved using this system. The recoveries were around 97-104% , RSD values for intra-day and inter-day precision were less than 5% for the acidic amino acids enantiomers in the biological samples. Furthermore, by analyzing the aging model senescence accelerated mouse prone 1 (SAMP1) mice which have low immunocompetence, the amounts of D-aspartic acid in thymus and spleen were determined as (206±18) and (264±21) nmol/ g, respectively. It is the first time that an obvious trend of the increasement of D-aspartic acid (p<0. 01) was observed in thymus and spleen of SAMP1 mice compare to senescence accelerated mouse resistant 1 (SAMR1) mice.

Objective To provide a better reference for the quality control of Nujin Pian by establishing the method for the determination of paeonol in Nujin Pian by HPLC. Methods HPLC was used Agilent XDB C18 column (4.6 mm×150 mm, 4.6 μm), mobile phase was composed of methanol-water (45∶55). The flow rate was 1.0 mL/min with detection wavelength at 274 nm and column temperature at 40 ℃. Results The regression equation of paeonol was Y=7×107X-16 965, r 2=0.999 8 (n=6). The linear range of paeonol was 0.003 8-0.38 μg. The average recovery rate was 99.7%, and RSD was 1.56% (n=6). Conclusion The method is simple, fast and accurate with good reproducibility. It can provide reference for the quality control of Nujin Pian.

Objective:To analyze the genotypes of HCV RNA in alcoholic and nonalcoholic HCV patients and contrast the distribution of the genotypes between those,identifying whether alcoholic patients have a higher susceptibility to certain genotype than nonalcoholic patients.Meanwhile,to detect the level of IFN-? and TNF-? for gaining the mechanism of hepatic lesion in alcoholic HCV patients.Method:114 HCV patients,according to the history of alcohol abuse,were divided into the alcohol group and nonalcohol group.The genotypes of HCV RNA in the two groups were performed by gene chip technique.Liver biopsy was practiced in 30 patients to diagnose.Ficoll gradient centrifugation and ELISA were used for extraction of PBMC and detection of IFN-?and TNF-?,respectively.Result:The genotype 1b was greater than other genotypes in the two groups,and there was no statistical significance(Alcohol group was 60% and nonalcohol group was 43.75%,P=0.22).The serum titers of HCV RNA of alcohol group were(1 1100?14 174.3)?103copies/ml and the nonalcohol group were(3 927.8?4 549.6)?103copies/ml,and there was statistical significance between the two groups(P=0.025).Among 18 alcoholic patients of 30 patients practiced liver biopsy,their liver inflammation was higher than nonalcoholic patients.The level of TNF-?of the alcohol was higher than that of nonalcohol,there was statistical significance between the two groups(P=0.048) and no statistical significance between those of IFN-?.Conclusion:Alcohol can promote the copies of HCV RNA in HCV patients and aggravate liver injury,but can't add susceptibility to certain genotypes of HCV RNA.The liver inflammation of alcoholic patients is higher than that of nonalcoholic patients.TNF-?,which builds an important effect in alcoholic HCV patients,is one of the important mechanisms in the liver injury.

BACKGROUND: Acute graft versus host disease (aGVHD) is still one of the barriers of allogenic hemopoietic stem cell transplantation in clinic. It has been proven that transforming growth factor-beta1 (TGF-?1), tumor necrosis factor-? (TNF-?) and interferon-? (IFN-?) abnormal secretion may be essential factors for aGVHD. OBJECTIVE: To explore the role of interleukin-4 (IL-4) and IFN-?, marker factors of Th1 and Th2, in aGVHD mice model of allogenic hemopoietic stem cell transplantation. DESIGN, TIME AND SETTING: Randomized controlled in vivo transplantation was performed at Department of Animal, Beijing Stomatology Hospital and Department of Hematology, Beijing Friendship Hospital, Capital Medical University from August to October 2005. MATERIALS: Twenty clean-grade male C57BL/6(H-2b) mice as donors were selected for harvesting bone marrow cells and spleen lymphocyte; fifty BALB/c(H-2d) female mice as recipients were randomly divided into control group (n=10), bone marrow cell transplantation group (n=20) and combination transplantation group (n=20). METHODS: Bone marrow cell group was injected with 2.0?107 marrow cells through tail vein, and combination transplantation group was injected with bone marrow cells and spleen lymphocyte of C57BL/6(H-2b) mice. Both groups were exposed to 6MV-X radiation (9.0 Gy). MAIN OUTCOME MEASURES: Mice survival time; peripheral blood leucocyte count; cytokine levels in peripheral serum by ELASA; histopathological alterations by HE staining. RESULTS: Mice in marrow cell group died since the eighth day, while those in combination group since the fourth day. Kaplan-Meier exhibited P 0.05). Compared with marrow cell group, the levels of IL-4 were significantly decreased (P