ObjectiveTo observe the combined effect and safety of Sodium Ozagrel and Low Molecular Heparin in the treatment of progressive cerebral infraction.Methods80 patients with progressive cerebral infraction were divided into experiment group and control group with 40 patients in each group. Sodium Ozagrel and Clexane both were used in the experimental group, but only Sodium Ozagrel was used in the control group. Platelet packing fraction and 4 items of blood clotting were examined before and 14 d after treatment. Neurofunctional defect was evaluated at the same time in the 2 groups.ResultsPlatelet packing fractions were significantly different when examined before treatment and 14 d after treatment both in 2 groups (P<0.05), but no difference between the 2 groups. The value of APTT 14 d after treatment in the experimental group was significantly increased (P<0.05), while this was not observed in the control group. Total effective power in experimental group was 89.7%, which was much higher than that in control group (77.5%). Neurofunctional defect evaluation in experimental group was significantly improved after treatment(P<0.05) compared with that in control. ConclusionSodium Ozagrel combined with Clexane is more effective on progressive cerebral infraction.

Objective To study the effects of anti -cancer drug NSC319726 on the gene expression of ovarian cancer.Methods The data that NSC319726 acted on the ovarian cancer cell lines TOV112D was down-loaded from the GEO database and then the bioinformatical analysis was conducted .Results NSC319726 in-creased 246 genes including MMP3,CXCR4 et al and decreased 198 genes such as PBX1 in ovarian cancer cell lines.GO analysis indicated that six GO items were related to metabolism .Pathway analysis revealed that NSC319726 could affect the circadian clock and MMP signaling pathway .Conclusion NSC319726 could affect the expression of multiple functional genes in ovarian cancer cell lines and might be a potential drug targeting to the precursor-B cell acute lymphoblastic leukemia .Meanwhile , it should be noted that NSC 319726 may have effects on the tumor metastasis and human sleep .Therefore,further research needs to be conducted before the clinical use .

Intracerebral delivery of drugs for the treatment of central nervous system disorders is usually limited by the blood-brain barrier (BBB). Transdermal drug delivery systems (TDDS) have the advantage of improving patient compliance and avoiding first-pass effects compared to intravenous, oral and intranasal drug delivery, and are an emerging non-invasive drug delivery route that facilitates long-term drug delivery to patients. The discovery of direct subcutaneous targeting of lymphatic pathways to brain tissue has made TDDS a new brain-targeted drug delivery strategy. At the same time, the development of nano-delivery technology has further facilitated the application of TDDS for targeted drug delivery to the brain. This review summarizes the mechanism of transdermal drug delivery into the brain and the application of TDDS in the treatment of brain diseases, providing new ideas and methods for the treatment of central nervous system diseases.

An electrochemical aptasensor for Pb2+ was constructed based on the layer-by-layer assembly of graphene (GR) and anthraquinone -2-sulfonic acid sodium salt (AQMS) on the surface of Pb2+ aptamer. The mercapto-modified Pb2+ aptamer was first anchored on a gold electrode. Then the highly conductive material of GR was adsorbed on apt through the unique π-π stacking interaction, which was further used for the assembly and signal amplification of the electroactive AQMS. Upon interaction with Pb2+ ions, the apt on the aptasensor undergone conformational switch from a single-stranded form to the G-quadruplex structure, causing the GR assembled with AQMS releasing from the electrode surface into solution. As a result, the electrochemical signal of AQMS on the aptasensor was substantially reduced. Base on this concept, a useful platform for detection of Pb2+ ions was constructed. Under the optimal experimental conditions, the attenuation of peak currents (△Ipa ) showed linear relationship with the logarithm of Pb2+ concentrations (lgCPb2+) over the range from 5. 0×10-10 to 5. 0×10-8 mol/ L. The detection limit was estimated to be 6. 0×10-11 mol/ L.

Objective To investigate the effect of compound catechu anti-diarrhea ointment on the expression of aquaporin3 (AQP3) in the colonic tissues of diarrhea rat model, and the mechanism thereof. Methods Forty SD rats were randomly divided into four groups:blank control group, model control group, positive control group and compound catechu anti-diarrhea ointment group. Rats were given 6 g blank matrix cream in model control group, 2 mL suspension of berberine in positive control group and compound catechu anti-diarrhea ointment in compound catechu anti-diarrhea ointment group, two times/d for 7 d. The rat model of diarrhea was established by using senna intragastric administration. The water content of feces was measured. The expression of AQP3 in colonic tissues was detected by immunohistochemistry assay. Results The water contents of feces were significantly higher in model control group (64.09±0.41)%than those of other three groups (F=53.879,P＜0.05). There was no significant difference in the water content of feces between compound catechu anti-diar-rhea ointment group (48.83 ± 1.08)%and positive control group (46.87 ± 2.19)%. The AQP3-positive cells were mainly ex-pressed in the intestinal mucosa. The dyeing index was significantly lower in model control group (0.85±0.18) than that of other three groups (F=14.971,P＜0.05). There was no significant difference in the dyeing index between compound catechu anti-diarrhea ointment group (1.30±0.18) and positive control group (1.37±0.14). Conclusion Compound catechu anti-di-arrhea ointment can significantly reduce the water contents of feces, which may be related to the increased AQP 3 expression in colonic tissues.

To probe into the application of fuzzy cluster in analysis of therapeutic effects of electro-acupuncture at different parameters on adjuvant-induced arthritis (AA) in rats.

OBJECTIVE: To apply the real-time data collection and demonstration system for acupuncture manipulation to quantitative analysis of acupuncture manipulation for acupuncture teaching and research. METHODS: The real-time observation and analysis of parameter changes of acupuncture manipulation were implemented by this system. RESULTS: During the course of lifting and thrusting manipulation, the needle body moved in a uniform variable motion, and the action force was still kept while the arrival of Qi was achieved. During the course of twirling manipulation, the variations of twirling number and radian caused the changes of resistance moment, and this reaction was related to the body response. During the course of rotating and shaking manipulation, the radius for rotating and shaking was related to such factors as the force, the action point and the direction. CONCLUSION: The real-time data collection and demonstration system for acupuncture manipulation can provide a new experimental method for quantitative data analysis, standardized research and teaching demonstration of acupuncture.

Objective:To explore the feasibility of screening for major fetal heart disease by training sonographers in township or county level hospitals .Methods:Training of B ultrasound scan for congeni-tal heart defects was given to the sonographers from one county hospital , and thirteen township hospitals ( or the district hospitals ) , and training of fetal echocardiography was given to sonographers from four city/county hospitals.The trained sonographers who had passed the examinations and had obtained quali-fications after six months of independent practice began to screen fetal congenital heart defects .To evalu-ate the effectiveness , sensitivity and specificity of screening was calculated by using the diagnosis of ex-pert neonatal/fetal echocardiographers as the gold standard .Results: A total of 3 425 fetuses received one fetal B ultrasound screening , one fetal echocardiography and one neonatal echocardiography from April 1, 2004 to December 31, 2005.One hundred and sixty-five B ultrasound screening images (4.9%) from township hospitals and fifty-six fetal echocardiography images (1.7%) from county or city centers couldn ’ t be reviewed because of poor quality .The sensitivity of fetal B ultrasound screening in the township and county hospitals was 30%and 0, and the specificity 93.3%and 99.9%, respectively. Nine fetuses with a major congenital heart disease were eventually found by the trained sonographers , and two cases were misdiagnosed and two unnoticed .The total sensitivity and specificity of fetal echocardio-graphy were 81.8% and 99.9%, respectively.The sensitivity in the county and city hospitals was 66 .7% and 100%, respectively .The specificity in the county and city hospitals was 99 .9%and 100%, respectively .Conclusion: Under the current circumstances , township hospitals are unable to perform effective fetal cardiac screening .Screening on fetal congenital heart disease is suggested to be taken by trained sonographers in county and city level medical centers .

In the review of the literature on the quantitative study of the needling techniques, the authors believe that modern scientific technology plays an important role in the quantitative study of the needling techniques, submit the research methods and channels of the quantitative study of the needling techniques under the current condition, foresee its development prospects and emphasize the significance of the quantitative study of the needling technique in the teaching, clinical service and research process of acupuncture.

BACKGROUND:Lipopexia induced by glucocorticoid is fat precipitation in marrow due to abnormal lipomatabolism,or differentiation of cells resulting from hormone-affected bone marrow mesenchymal cells.The precise generating procedure remains unclear.OBJECTIVE:To Jnvastigate effects of vadous concentrations of dexamethasone on adipogenic differentiation of bone marrow mesenchymal cells.DESIGN,TIME AND SETTING:The observational study was performed at the Department of Biochemistry,China Medical University from January 2007 to January 2009.MATERIALS:A total of 80 Sprague-Dawley rats aged 3 or 4 weeks,weighing (110±10) g,of both genders,were used in this study.METHODS:Rat bone marrow mesenchymal cells were isolated and subcultured.Bone marrow masenchymal cells at the third passage were used as samples.MAIN OUTCOME MEASURES:Cellular morphologic changes after treatment of 10~(-7) mol/L dexamethasone were observed under an inverted microscope,as well as at 3,7,14 and 21 days under normal culture condition.Morphological changes of bone marrow mesenchymal cells were observed following alkaline phosphatase and Sudan Ⅲ staining.Alkaline phosphatase activity was measured using phenol reagent.Effects of dexamethasone on cell proliferation were measured using MTT assay.RESULTS:Following 24 hours of incubation,a few adherent cells were found in the bottom of the culture flask,showing spindle shape.With prolonged time,adherent cells became more,presenting radiated shape.Following passage,cells distributed uniformly,showing typical fibroblast-shape.Following dexamethasone stimulation,cells changed from spindle-shape into polygonal or irregular shape.In the late phase,with increased concentration and prolonged time,cell colonies disappeared;cells adhered,and died.In normal cultured cells,no or a few orange particles were found.In dexamethasone-cultured cells,with increased hormone concentration and prolonged time,Sundan Ⅲ stained particles increased.At 21 days,alkaline phosphatase activity under normal culture was separately 1.57-,4.49-and 5.0-fold of 10~(-8),10~(-7),10~(-6) mol/L dexamethasone group.At 7,14 and 21 days,alkaline phosphatase activity under normal culture was separately 2.93-,3.80-and 4.39-fold of 10~(-7) mol/L dexamethasone group (P ＜ 0.05).High concentration of dexamethasone had significant inhibitory effects on cell proliferation activity.Significant difference was detected as compared 10~(-7) mol/L and 10~(-6) mol/L to other groups (P ＜ 0.05).CONCLUSION:High-dose dexamethasone enhances adipogenic and suppresses osteoblastic differentiation of bone marrow mesenchymal cells.The effect will increase along with the increasing content and prolonged duration of demamethasone stimulation.