Objective To observe the influences of Shenzhi Huoxue capsule to prognosis of patients with hypertensive intracerebral hemorrhage after hard channel puncture and drainage.MethodsTo divide 106 patients with hypertensive intracerebral hemorrhage from May 2013 to April 2015 into two groups.The observation group with 53 cases received Shenzhi Huoxue capsule after hard channel puncture and drainage, the control group did not receive Shenzhi Huoxue capsule.To observe the complications rate, the number of deaths during hospitalization, the number of persons with disabilities after treatment, GOS score, BI index, SSS score and NCSE score of two groups.Results(During treatment, the infection, liver and renal dysfunction and rebleeding rates of observation group were lower than control group, and the infection ratio was significant (P<0.05).(During treatment, the proportion of deaths of observation group was 18.87%,lower than control group with 26.42%, but the differences were not statistically significant.The proportion of disabilities of observation group was 26.42%,lower than control group with 45.28%, and the differences were statistically significant (P<0.05).After treatment, GOS score and BI index of two groups were higher than before treatment(P<0.05).GOS score and BI index of the observation group were (12.85±0.81,83.95±4.37)score, higher than the control group with (10.05±0.73,74.95±4.06)score, and the differences all were statistically significant (P<0.05).After treatment, the SSS score and NCSE score of two groups were higher than before treatment(P<0.05),the SSS score and NCSE score of observation group were (47.10±4.18,66.72±3.99)score, higher than the control group with (38.42±3.05,59.34±3.45)score, and the differences were statistically significant (P<0.05).ConclusionAdding Shenzhi Huoxue capsule to patients with hypertensive intracerebral hemorrhage after hard channel puncture and drainage can reduce the number of persons with disabilities and improve life self-care ability and cognitive ability.

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Objective To analyze and compare the essential oil ofZiziphora clinopodioides Lam. from different regions in Xinjiang by infrared spectroscopy;To provide a reference for its identification and quality control.Methods Characteristic absorption peaks ofZiziphora clinopodioides Lam. essential oil from 18 regions in Xinjiang Uygur autonomous region were identified, compared and analyzed according to peaks’ shapes, positions and intensities by infrared spectroscopy, second derivative infrared spectroscopy and clustering analysis.Results Differences exist in the characteristic absorption peaks according to peaks’ shapes, positions and intensities. And then the samples from 18 regions can be divided into four categories.Conclusion This method was direct, simple, fast and convenient. Combining with clustering analysis, It could provide a reliable evidence for identification and quality control ofZiziphora clinopodioides Lam..

Objective To establish an HPLC method for the content determination of gallic acid and kaempferol-3-O-rutinoside inNymphaea candida Presl..MethodsThe separation was carried out on a Wondasil C18 column (250 mm×4.6 mm, 5μm). The mobile phase was methanol-0.1% acetic acid solution, with gradient elution;the flow rate was 1.0 mL/min;the detection wavelength was set at 270 nm;the column temperature was 30℃.Results The linear ranges of gallic acid and kaempferol-3-O-rutinoside were 0.065-0.585μg (r=0.999 1), 0.133-1.197μg (r=0.999 5), respectively. The average recoveries of gallic acid and kaempferol-3-O-rutinoside were 102.71%, 102.08%, with RSD of 1.97%, 0.46%, respectively.Conclusion This method was rapid, accurate, and reliable. It can be used for the determination of allic acid and kaempferol-3-O-rutinoside in Nymphaea candidaPresl..

OBJECTIVE:To establish physiological pharmacokinetic (PBPK) model of cefdinir in healthy volunteers,and to predict pharmacokinetic process of cefdinir in volunteers after oral administration. METHODS:Using“toubao dini”“cefdinir”“logP”“pKa”as keywords,related literatures about physico-chemical constants of cefdinir were retrieved from CNKI,ScienceDi-rect,PubMed and other databases;according to related guidelines and preliminary clinical trial plan of FDA,GastroPlusTM 8.6 soft-ware was used to establish PBPK model of oral administration of cefdinir;the effectiveness of the model was evaluated by multiple error. The model was used to simulate the absorption of cefdinir in the gastrointestinal tracts. The bioequivalence of test preparation and reference preparation were evaluated through single and population(n=500)simulation tests using cmax and AUC0-∞ of cefdinir reference preparation (capsule and granular formulation) as factors when release rate t85%=15 min (i.e. accumulatively released 85% within 15 min). RESULTS:The blood concentration-time curves of cefdinir predicted by PBPK model fitted well with mea-sured value(R2≥0.95);the pharmacokinetic parameters(cmax,tmax,AUC0-∞)were close to measured results,and the multiple er-rors were less than 2. After oral administration,cefdinir was mainly absorbed by the intestinal tract (45.6%),especially by seg-ment 1 of jejunum(14.8%);the absorption amount was significantly lower than the release amount of absorption site,and reached the maximal value(about 40%)within 4 h. The results of single simulation test showed that there was no statistical significance in cmax and AUC0-∞ between cefdinir test and reference preparations (P>0.05). The results of population simulation test showed that the relative bioavailability of cefdinir test particle and test capsule respectively were 99.01%-102.99% and 97.60%-105.90%;90%CI of cmax and AUC0-∞ values were within 80%-125% of reference preparation. CONCLUSIONS:The PBPK model is accurate and reliable in this study,can provide reference for pharmacokinetic study and bioequivalence evaluation of cefdinir preparations. Test preparation and reference preparation are equivalent.

Objective:To establish an LC–MS/MS method for the determination of the active metabolite(SN-38) and secondary metabolite(SN-38G) of irinotecan in rat liver microsomes incubation system, and optimize the incubation conditions. Methods:Meth-anol was selected to precipitate protein in the samples, and then the concentrations were analyzed by LC–MS/MS. All the separation was carried out on a ZORBAX Eclipse XDB-C18 column(2. 1 mm × 50 mm, 3. 5 μm) with the mobile phase of acetonitrile – water (containing 0. 1% formic acid) (23 :77) at a flow rate of 0. 3 ml·min-1. The mass spectrometer was operated with multiple reac-tions monitoring ( MRM) using electrospray ionization ( ESI) . The incubation conditions were optimized by single factor design. Re-sults:SN-38 and SN-38G showed a good linearity ( r≥0. 9972) respectively within the range of 2. 3-920 ng·ml-1 and 2. 5-1000 ng ·ml-1. The intra-and inter-day RSD was below 14. 6%(n=6). The average recovery was within the range of 74. 1%-123. 4% with RSD below 13. 5% (n=6). The optimal incubation conditions were as follows:the concentration of liver microsomal protein was 0. 3 mg·ml-1 and the incubation time was 30 min. Conclusion:The method is rapid, sensitive and accurate in the quantification of SN-38 and SN-38G in the incubation system,which provides methodological basis for the activity determination of UGT1A1 enzyme in vitro.

Objective:To evaluate the safety of cardiac catheterization intervention therapy and transthoracic small incision surgery in the occlusion bydomestic occluder under echocardiography guiding in patients with atrial septal defect (ASD).Methods:A total of 1 080 patients with ASD in the occlusion by domestic occluder were analyzed retrospectively,and the interventional treatment were performed in 734 cases through cardiac catheterization intervention therapy and 346 cases through transthoracic small incision surgery.The patients undergone cardiac catheterization intervention therapy were guided under the digital substraction angiography (DSA) and were monitored by transthoracic echocardiography (TTE) in the whole interventional process,and the efficacy was evaluated with TTE.The occlusion of transthoracic small incision surgery was guided under the transesophageal echocardiography (TEE),which was used to monitor the position of occluder and evaluate the efficacy immediately.Results:Two kinds of intervention in the occlusion by domestic occluder had achieved satisfactory results in patients with ASD.There was no statistically difference in the longest size of ASD between the 2 intervention methods,while there were statistically differences in the ratio between ASD longest diameter and atrial septal length,and the size of the occlusion,and the disparity between the size of the occluder and ASD longest diameter (D value),respectively (all P＜0.05).When the size of arithmetic mean of the ASD was ＜30 mm,the success rate of the 2 methods was both 100％.When the size of arithmetic mean of the ASD was ≥ 30 mm,the success rate was 100％ in the transthoracic small incision surgery and 50％ in the cardiac catheterization intervention therapy.Conclusion:Domestic occluder is safe.Compared with the imported one,its cost is lower.When the size of the defects is same,the occlusion is smaller in the transthoracic small incision surgery compared with that in the cardiac catheterization intervention therapy.When the size of arithmetic mean of the ASD is ≥ 30 mm,the success rate of the transthoracic small incision surgery is higher compared with the cardiac catheterization intervention therapy.When the cardiac catheterization intervention therapy fails,the transthoracic small incision surgery may be a better choice.

Objective:To investigate the diagnostic value of diffusion weighted imaging and 1H magnetic resonance spectroscopy for the neonatal hypoxic ischemic encephalopathy (HIE).Methods:37 cases of patients with neonatal hypoxic ischemic encephalopathy admitted in our hospital were selected as the study group,another 40 healthy neonates were selected as the control group,both groups of neonates underwent diffusion-weighted imaging and 1H magnetic resonance spectroscopy,ordinary MR1 and diffusion weighted imaging findings of neonates in the study group were observed,the neonatal cerebral metabolic compounds relative concentration were observed and compared between two groups.Results:The detection rate of diffusion-weighted imaging was significantly higher compared with the ordinary MRI (P＜0.05).The relative ratio of brain metabolic compounds NAA/Cr of study group were obviously lower than those of the control group,while the Cho/Cr,MI/Cr,Glu-Glr/Cr,Lac/Cr were significantly higher (P＜0.05).Conclusion:Diffusion weighted imaging combined with 1H magnetic resonance spectroscopy could improve the diagnostic accuracy of neonatal hypoxic ischemic encephalopathy,the analysis of the concentrations of brain metabolic compounds could contribute to evaluate the severity of HIE.

Objective:To investigate the effect of P2X4R silencing on 6-hydroxydopamine (6-OHDA) induced Parkinson's disease (PD) cell model and its mechanism. Methods:(1) According to the 6-OHDA concentrations, the SH-SY5Y cells were divided into 0 μmol/L 6-OHDA group, 50 μmol/L 6-OHDA group, 100 μmol/L 6-OHDA group, and 150 μmol/L 6-OHDA group. CCK-8 was used to detect the cell survival rate, Western blotting was used to detect the P2X4R protein expression, and real time quantitative RT-PCR was used to detect the P2X4R mRNA expression. The optimal concentration of 6-OHDA was selected to induce PD cell model. (2) SH-SY5Y cells at logarithmic phase were transfected with P2X4R siRNA lentiviral plasmids of different sequences (P2X4R-siRNA540, P2X4R-siRNA792, and P2X4R-siRNA1401) and nonsense sequence normal control plasmid (NC-siRNA), respectively (P2X4R-siRNA540 group, P2X4R-siRNA792 group, P2X4R-siRNA1401 group, and NC-siRNA group); the P2X4R mRNA and protein expressions were detected by real time quantitative RT-PCR and Western blotting, and the P2X4R siRNA sequence with the best silencing effect was screened to establish P2X4R silencing cell line. (3) The PD cells induced by the optimal concentration of 6-OHDA were transfected by P2X4R-siRNA enjoying the best silencing effect, NC-siRNA, and P2X4R antagonist CORM-2 (PD+P2X4R-siRNA group, PD+NC-siRNA group, and PD+CORM-2 group); CCK-8 and flow cytometry were used to detect the survival rate and apoptosis rate of cells in each group, and Western blotting was used to detect the protein expressions of connexin (PANX1), toll-like receptor (TLR)-2, Caspase-3 and cleaved Caspase-3. (4) The PANX1 or TLR-2 over-expression plasmids (pCMV3-PANX1 and pCMV3-TLR2), and negative control plasmid (pCMV3-NCV) were transfected into cells from the PD+P2X4R-siRNA group (PD+P2X4R-siRNA+pCMV3-PANX1 group, PD+P2X4R-siRNA+pCMV3-TLR2 group, and PD+P2X4R-siRNA+pCMV3-NCV group); CCK-8 and flow cytometry were used to detect the survival rate and apoptosis rate of cells in each group; Western blotting was used to detect the TLR-2, Caspase-3 and cleaved Caspase-3 protein expressions. Results:(1) As compared with that in the 0 μmol/L 6-OHDA group, the cell survival rate in 50, 100, and 150 μmol/L 6-OHDA groups was significantly decreased in a dose-dependent manner, and the P2X4R protein and mRNA expression levels were significantly increased in a dose-dependent manner ( P<0.05); among them, 100 mol/L 6-OHDA was the most suitable concentration to induce PD cell model. (2) As compared with those in the NC-siRNA group, the P2X4R mRNA and protein expressions in P2X4R-siRNA540 group, P2X4R-siRNA792 group, and P2X4R-siRNA1401 group were significantly decreased ( P<0.05); P2X4R mRNA and protein expressions were the lowest in the P2X4R-siRNA540 group. (3) As compared with PD+NC-siRNA group, the PD+P2X4R-siRNA group and PD+CORM-2 group had significantly increased survival rate, significantly decreased apoptosis rate, and statistically decreased Caspase-3, cleaved Caspase-3, PANX1 and TLR-2 protein expression levels ( P<0.05). (4) As compared with PD+P2X4R-siRNA+pCMV3-NCV group, the TLR2 protein expression in PD+P2X4R-siRNA+pCMV3-PANX1 group was significantly lower ( P<0.05); as compared with PD+P2X4R-siRNA+pCMV3-NCV group, PD+P2X4R-siRNA+pCMV3-TLR2 group had significantly increased cell survival rate, significantly decreased apoptosis rate, and significantly decreased Caspase-3 and cleaved Caspase-3 protein expressions ( P<0.05). Conclusion:P2X4R silencing can significantly improve the survival rate of PD cell model induced by 6-OHDA, reduce apoptosis and expressions of apoptosis related proteins (Caspase-3 and cleaved Caspase-3), and play a neuroprotective role, whose mechanism may be related to PANX1/TLR-2 signal pathway.

Objective This paper aimed to discuss the construction strategy to promote research integrity in medical science from the perspective of hospital research administrators,and to provide theoretical basis for fulfilling the national strategic requirement of implementing "Scientific research integrity construction ".Methods Analyze and summarize the connotation,manifestations,causes and countermeasures of research integrity and research misconduct.Results The misconduct in medical scientific research occurred in various aspects,including scientific research projects,research papers,scientific achievements and other different stages.Behind reasons include weak sense of research integrity,lack of moral integrity education and training,improper academic evaluation system,lack of sound supervision,reward and punishment mechanism,etc.Conclusions A lot of strategies could adopted to promote the construction of research integrity and development of medical scientific research,for instance,strengthening scientific research integrity education,establishing a multi-dimensional evaluation system,improving the supervision,reward and punishment mechanism of scientific research integrity,as well as promote a better scientific research atmosphere.