Objective: To investigate the effect of neoadjuvant chemotherapy (NACT) on microvessel density (MVD)/ lymphatic microvessel density (LMVD) in locally advanced uterine cervical cancer and its clinical impact. Methods: Seventy patients with IB2-IIB cervical cancer were recruited, and the surgical specimens of cervical cancer tissues were collected. The MVD and LMVD of cervical cancer were examined by immunohistochemistry, and the relationship between clinical response of NACT and the clinicopathological characteristics was analyzed. Results: The levels of MVD and LMVD in cervical cancer tissues were significantly higher than those in the normal cervical tissues (P<0.001; P=0.028). The MVD was related to the depth of cancer invasion (P=0.039), and the LMVD was related to the level of serum squamous cell carcinoma antigen (SCCAg) and the lymph node metastasis (P=0.017; P=0.049). The level of MVD was significantly decreased after NACT as compared with that before NACT (P=0.019). As compared with the levels of MVD and LMVD before NACT, these levels were both decreased after NACT (P=0.019; P=0.176). The overall response rate of NACT was 70.0% (49/70), and the complete response rate was 21.4% (15/70). Multivariate analysis displayed that the depth of cancer invasion was an independent factor related to the response of NACT (P=0.018, odds ratio = 0.169). Conclusion: NACT can be helpful to reduce the level of MVD and the volume of tumor in locally advanced cervical cancer. Copyright© 2011 by TUMOR.

OBJECTIVE:To provide reference for medication consultation Wechat platform in the hospital. METHODS:The medication consultation Wechat platform of our hospital was introduced,including main method,content and effect. The consulting pharmacist team was set up,and Wechat public number was applied and operated experimentally;information pharmacist was re-sponsible for its daily maintenance. We released pharmacy news,accumulated consumers and expanded influence through other me-dia at regular intervals. RESULTS & CONCLUSIONS:According to the medical practice,two modules“medication consultation”and“pharmacy news”were set up. From Dec. 2014 to Jul. 30th 2015,medication consultation system had accumulated 1 121 con-sumers,with an increase of 5 to 8 ones everyday;average number of consultation records was 10 everyday;we also had published 22 batch of medication news(79 messages),including 31 original messages and 3 video messages. Several messages gained much attention from network media and offline media. As new pharmaceutical care mode,Wechat platform contribute to realize a individ-ual,convenient and mobile medication consultation service,medication health science popularization,and improves medication compliance of patients and the awareness of medication safety in field of pharmaceutical administration Wechat platform,so as to improve pharmaceutical care effect of“taking patients as the center”and promote the propaganda of hospital brand. Thus it has a good prospect of application and popularization.

BACKGROUND: Motion artifacts and magnetic susceptibility artifacts have serious impacts on magnetic resonance (MR) image quality. Periodically rotated overlapping parallel lines with enhanced reconstruction (Propeller) technique, collecting data spirally using radial blades by filling pattern, greatly reduce or eliminate these artifacts.OBJECTIVE: To discuss the clinical application of MR Propeller technique in eliminating the artifacts of brain images.DESIGN, TIME AND SETTING: The comparative observation was performed at Kunming General Hospital of Chengdu Military Area Command of Chinese PLA from July 2006 to April 2007.PARTICIPANTS: Twenty-one cases showed dysphoria or unable to control oneself in the routine cranial MRI examination, and 5 presented artifacts because of magnetic-susceptibility.METHODS: Twenty-one cases, who had dysphoria and could not control themselves in routine cranial MRI examination, underwent Propeller T2 weighted imaging (WI), and the images were compared with routine T2 fast-recovery fast spin echo sequence; 5 cases, who had artifacts because of magnetic-susceptibility, received Propeller diffusion weighted imaging (DWI), and the images were compared with routine DWI.MAIN OUTCOME MEASURES: The changes of motion artifacts and magnetic susceptibility artifacts resulted from Propeller technique.RESULTS: The artifacts caused by motion in 21 cases were significantly reduced or eliminated by Propeller T2WI scanning, and those caused by magnetic susceptibility in the other 5 cases were also significantly eliminated by Propeller DWI. Satisfactory MR images were obtained.CONCLUSION: Propeller T2WI or DWI technique can obviously reduce or eliminate the artifacts caused by motion or magnetic-susceptibility, and can significantly improve the image quality for clinical diagnosis.

Objective To investigate the feasibility of VTQ value of spleen in noninvasive assessment of staging of liver fibrosis in patients with hepatitis B.Methods VTQ values of spleen were measured in 56 patients with hepatitis B by using ARFI technique and liver biopsy was performed.The patients were then grouped according to the stages of liver fibrosis stage.The results were analyzed by the intergroup comparison,Pearson Correlation analysis,and receiver operating characteristic curve (ROC curve).Results There was positive association of the VTQ value with the stages of liver fibrosis,whose correlation coefficient was 0.83 (P ＜ 0.05);There was no significant difference between the spleen VTQ value and the liver fibrosis S1 and SO (P ＞ 0.05),whereas there were significant differences among other groups (P ＜ 0.05).The area under the ROC curve was 0.95,the cut-off value was 2.79m/s,and the specificity and sensitivity were 81.8％ and 91.7％ respectively.Conclusions The VTQ value measured by ARFI technique has a better value in noninvasive diagnosis of stages of hepatitis B liver fibrosis.

Designing of natural product-like compounds using natural products as template structures is an important strategy for the discovery of new drugs. Gambogic acid (GA), which is a Garcinia natural product with a unique caged xanthone scaffold, inhibits potent antitumor activity both in vitro and in vivo. This review summarized the researches on the identification of the antitumor pharmacophore of GA, and the design, structural optimization and structure-activity relationship (SAR) of natural product-like caged xanthones based on it.
Antineoplastic Agents ; chemical synthesis ; chemistry ; pharmacology ; Biological Products ; chemical synthesis ; chemistry ; isolation & purification ; pharmacology ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Drug Screening Assays, Antitumor ; Garcinia ; chemistry ; Humans ; Molecular Structure ; Structure-Activity Relationship ; Xanthones ; chemical synthesis ; chemistry ; isolation & purification ; pharmacology

Objective:To design and construct the replication-deficient recombinant adenovirus Ad-siCTGF which can silence the expression of connective tissue growth factor (CTGF) by RNA interference and verified its function. Methods:A specific sequence, which was verified to be able to silence CTGF gene with high efficiency, was cloned into pSES-HUS vector to produce the shuttle plasmid pSES-siCTGF. The plasmid after Pme Ⅰ linearization was cotransduced with pAdEasy into BJ5183 E.coli strains to construct recombinant vector Ad-siCTGF. After linearization treatment with Pac Ⅰ enzyme digestion Ad-siCTGF was transfected into HEK293 cells via liposome mediation. The recombinant adenovirus was packaged. The titer of the Ad-siCTGF was increased after three times of cross-infection. 4T1 cells were infected with the adenovirus. The silencing efficiency was tested by real-time fluorescence quantitative (RFQ)-PCR and Western blotting.Results:Pac Ⅰ enzyme digestion electrophoresis indentified that recombinant adenovirus was successfully constructed. The titer of the recombinant adenovirus Ad-siCTGF was 2.6×10~(10) pfu/mL after amplification and purification. The CTGF mRNA and protein expression in 4T1 cells were decreased by 36.27% and 31.56%, respectively, compared with the control groups.Conclusion:The recombinant adenovirus which can silence the expression of CTGF was successfully constructed. It laid a good foundation for further investigation of the action mechanism of CTGF in tumor cells.

OBJETCTIVE:To establish a method for the content determination of ethacridine lactate in Compound ethacridine ointment. METHODS:HPLC was performed on the column of Agilent ZORBAX SB-C18 with mobile phase of 0.1% Octanesulfon-ic acid sodium solution-acetonitrile(70∶30,V/V)at a flow rate of 1.0 ml/min,the detection wavelength was 270 nm,the column temperature was 30℃,and the injection volume was 10 μl. RESULTS:The linear range of ethacridine lactate was 10.002-50.010μg/ml(r=0.999 9);RSDs of precision,stability and reproducibility tests were less than 1%;recovery was 98.96%-100.36%(RSD=0.49%,n=9). CONCLUSIONS:The method is simple,accurate and reproducible,and can be used for content determina-tion of ethacridine lactate in Compound ethacridine ointment.

BackgroundGlaucoma associates with apoptosis of retinal ganglion cells ( RGCs).Research showed that ciliary neurotrophic factor (CNTF) can repair optic nerve trauma,but it has not reported whether CNTF has a protective effect on glaucomatous optic neuropathy.ObjectiveThis experimental study was to explore the protective effect of CNTF on RGCs in rat eyes with acute ocular hypertension.MethodsOcular acute hypertension models were induced in bilateral eyes of 24 clean Wistar rats by forced perfusion of a balanced salt solution into the anterior chamber.Two days before molding,0.5 μg recombinant human CNTF (5 μl) was injected intravitreously in the left eyes,and 5 mmol/L sodium phosphate solution (5 μl) was injected in the same way as the control group.Three other Wistar rats were used as the normal control group.The animals were sacrificed by excessive anesthesia and the retinal sections were prepared 1,3,7,14 days after molding.The morphology of the retina was examined and RGCs counting was performed by hematoxylin & eosin staining and observed under a light microscope.The expression of glutamic acid in RGCs was assessed by immunochemistry.ResultsRegular retinal structure with clearly defined cell layers were observed in normal control rats.Changes in vacuoles in RGCs were seen in the model control group.The number of degenerative RGCs decreased in the CNTF group.Compared with the model control group,number of normal RGCs increased from 1 day to 14 days after molding with a significant difference between the two groups (all P=0.000).Immunochemistry assay showed that the numbers of positive cells for glutamic acid were 5.50±1.04 and 6.00±1.41 for the average of 3 fields at 3 days or 7 days in the CNTF group,and those in the model control group were 9.00±2.91 and 10.83 ± 1.94,respectively,showing significant differences between them ( all P =0.000 ).However,no comparable differences were found in the numbers of positive cells for glutamic acid at 1 day and 14 days between the two groups( P=0.578,0.180).ConclusionsCNTF down-regulates the expression of glutamic acid in RGCs and offers neuroprotection for RGCs in an acute glaucoma rat model.

Objective To inquire and compare the value of 4 proteins in the cerebrospinal fluid (CSF) for early diagnosis of Creutzfeldt-Jakob disease (CJD).Methods The CSF samples were obtained from 14 CJD patients in the early stage,t-tan,t-tan,t-tau/t-tau,S-100?,14-3-3 and 14-3-2 protein had been examined and compared with other dementia (OD) and none dementia (ND) as controls by capture assay and ELISA.Results (1)t-tan protein: the concentration in CJD ,OD and ND is 8295,300 and 161 pg/ml respectively,t-tau/t-tau ratio is 0.0092,0.2258 and 0.2471 respectively.(2) S-100? protein: the concentration in CJD,OD and ND is 1.576,0.639 and 0.239 ng/ml respectively.(3) 14-3-3 protein:the concentration in CJD,OD and ND is 40.00,2.65 and 3.10 ng/ml respectively.(4) 14-3-2 protein: the concentration in CJD,OD and ND is 48.43,14.00 and 20.50 ng/ml respectively.(5) At the cut-off point 500 pg/ml for t-tan,sensitivity for diagnosis of CJD is 84.6% and specificity is 87.6% ,t-tan has no diagnostic value to CJD.(6) At 1.626 ng/ml for S-100?,the sensitivity is 92.3% and specificity is 83.8%.(7) At 9 ng/ml for 14-3-3 protein,the sensitivity is 86.7% and specificity is 86.4%.(8) At a level of24 ng/ml for 14-3-2 protein,the sensitivity for diagnosis of CJD is 78.6% and specificity is 77.3%. Conclusion It is the CSF detection of neuroproteins that have great valuble significance in diagnosis for sporadic CJD in the early stage.

Objective To construct an RNAi lentiviral vector targeting rat CD86 gene and detect its effect of gene silencing in dendritic cells. Methods The effective sequence of siRNA targeting rat CD86 gene was confirmed in our previous work. DNA oligo containing short hairpin frame was synthesized and re-annealed, and then cloned into pGCL-GFP lentivind expression vector. PCR and sequencing analysis were made for verifying the positive clones. The virus packaging plasmids were transfected into 293T cells to har-vest shRNA lentivirus. After infection in dendritic cells, real-time PCR and Western blot were performed to determine the expression level of CD86 at mRNA and protein of NC( negative control virus). Results PCR and sequencing analysis revealed that shRNA plasmid was correctly constructed. Virus with a titer of 2×108 TU/ml was successfully packaged. CD86 expression in dendritic cells can be knockdown at both mRNA and protein level by virus infection as characterized by 90.6% decrease of mRNA and significant inhibition of protein compared with NC. Conclusion The recombinant lentiviral shRNA expressing vector targeting rat CD86 gene has been successfully constructed and packaged. CD86 mRNA and protein can be effectively down-regulated in dendritic cells.