Double main teaching model can be applied in the teaching of pharmacology. To be spe-cific,for complex and difficult theory,we applied 'transmission-acceptancee' teaching method while for simple and easy theory,we used 'discovery' teaching method. Compared with the traditional teaching mod-el, double main teaching model improved teaching results and enhanced students' enthusiasm for learn-ing,their autonomous learning ability and cooperative ability. On the other hand,there still existed some prob-lems. We should keep on making great efforts to achieve better teaching results.

Objective To understand the pregnancy outcomes and risk factors in pregnant women infected with Toxoplasma gondii. Methods Toxoplasma IgM and IgG antibodies in sera from 2 740 cases of pregnant women were detected by using enzyme-linked immunosorbent assay(ELISA)in Zhuozhou Municipal Maternal and Child Health Care Center from 2010 to 2013,and the pregnancy outcomes were followed up. The risk factors for Toxoplasma infection were investigated with questionnaires. Results Among the 2 740 cases of pregnant women,195 cases were found with antibodies to T. gondii(7.12%),and among them,44 cas-es were IgM positive(22.56%),and 151 cases were IgG positive(77.44%). There were 41 cases with adverse pregnancy out-comes among the 195 cases(21.02%),including 32 cases of IgM positive(78.05%)and 9 cases of IgG positive(21.95%). There were 6 cases of adverse pregnancy outcomes in uninfected pregnant women(2.86%). The difference between the two groups was statistically significant(P<0.05). The close contact with animals,eating raw meat,eating chafing dish or barbeque,and eating raw meat stuffing were important risk factors in pregnant women infected with T. gondii(compared with the uninfected group,P<0.01). Conclusion The Toxoplasma infection may lead to adverse pregnancy outcomes,therefore,to develop good habits of life and health is an effective way to avoid adverse pregnancy outcomes.

Objective To observe the effect of micro-pulse laser in the treatment of acute central serous chorioretinopathy (CSC).Methods 105 cases (114 eyes) with clinically diagnosed acute CSC were included in the study,including 78 males (86 eyes) and 27 females (28 eyes) with an average age of (40.40±7.80) years,and mean duration of 26 days.All patients were examined for best corrected visual acuity (BCVA),slit lamp microscope and pre-lens,direct ophthalmoscopy,color fundus photography,fluorescein angiography combined with indocyanine green angiography (ICGA),and micro-perimetry.Patients were randomly divided into micro-pulse laser treatment group (treatment group,61 eyes) and control group (51 eyes).The age (Z ＝-0.374),gender ratio (x2=0.010),disease duration (Z=-0.525),BCVA (t=1.885),foveal thickness (CFT) (t=-1.754) and macular light sensitivity (t=1.255) were similar between the two groups.The micro-pluse laser treatment was performed with an 810 nm infrared diode laser at the active leakage site on retinal pigment epithelium guided by ICGA.The exposure time was 0.2 s,effective working time was 15％,the laser spot diameter was 100 μm,and the distance between 2 spots was 100 μm.The control group received pseudo-treatment using the same laser parameters.After 2 weeks,1month,3 months and 6 months of treatment,all patients were examined with BCVA,ocular fundus,optical coherence tomography and micro-perimetry.These parameters were compared between the 2 groups.Results The subretinal fluid of 39 eyes in the micro-pulse laser group and that of 3 eyes in the control group were absorbed completely.The cure rates in the micro-pulse laser group (61.9％) was higher than that in the control group (x2 =38.015,P＜0.01).In the micro-pulse laser group,the mean BCVA was 67.81±11.70 at baseline,which increased significantly to 75±9.91,76.78± 9.43,78.56 ± 8.57 and 78.52 ± 8.60 at 2 weeks,1 month,3 months and 6 months after treatment respectively.In the control group,that was 63.86±10.35,64.20±11.43,63.90±10.88,64.55±11.04,64.10±11.12 at baseline,2 weeks,1 month,3 months,6 months post-treatment respectively.The mean post treatment BCVA at each time point were significantly higher in the micro-pulse laser group than that in the control group (P＜ 0.01).The mean CFT was (380.94 ± 50.73) μm at baseline,which reduced to (268.44±44.20),(242.78±41.31),(235.46±38.44),(235.56±38.71) μm at 2 weeks,1 month,3 months and 6 months post-treatment respectively in the nmicro-pulse laser group.In the control group,that was (397.98±52.61),(334.55±59.15),(316.16±55.25),(314.47±53.27),(321.51±55.74) μm at baseline,2 weeks,1 month,3 months,6 months post-treatment respectively.The mean post-treatment CFT at each time point in the micro-pulse laser group were decreased significantly compared to that in the control group (P＜0.01).The mean central retinal sensitivity was (15.03 ± 2.00) dB at baseline,which enhanced to (17.06 ± 1.71),(17.37 ± 1.61),(17.56 ± 1.58),(17.48 ± 1.53) dB at 2 weeks,1 month,3 months and 6 months post-treatment respectively in the micro-pulse laser group.In the control group,that was (14.54±2.22),(14.80±2.16),(14.88±2.09),(14.82±2.07),(14.69±2.11) dB at baseline,2 weeks,1 month,3 months and 6 months post-treatment respectively.The mean central retinal sensitivity at each time point of post-treatment in the micro-pulse laser group were enhanced significantly compared to that in the controlled group(P＜0.01).Conclusion In the treatment of acute CSC,micro-pulse laser can improve BCVA,reduce the mean CFT and improve the mean central retinal sensitivity.It is an effective and safe method to treat acute CSC.

Objective To investigate the effects of salvianolic Acid A and B(Sal A,Sal B)on acute myocardial ischemia of rats.Method The rat model with acute myocardial ischemia was established by coronary ligation and intravenous injection of posterior pituitary.The effect of Sal A 10,5,2.5 mg/kg and Sal B 10 mg/kg on the electrocardiogram of different time points,serum creatine kinase(CK),lactate dehydrogenase(LDH)and myocardial infarction area were observed.Results To the rat model was established by coronary ligation,Sal A 10,5,2.5 mg/kg and Sal B 10 mg/kg could lower the ST-segment elevation,reduce infarct size and serum CPK,LDH.The effect of Sal A 10,5 mg/kg was significantly higher than that of Sal B.The role of Sal A 2.5 mg/kg was equivalent to Sal B 10 mg/kg.To the rat model was established by intravenous injection of posterior pituitary,Sal A 10,5,2.5 mg/kg and Sal B 10 mg/kg could lower the ST-segment elevation.The effect of Sal A 10,5 mg/kg was significantly higher than that of Sal B.The role of Sal A 2.5 mg/kg and sal B 10 mg/kg had no significant difference.Conclusion Treatment with Sal A 10,5 mg/kg was more effective in the rat models with acute myocardial ischemia than Sal B 10 mg/kg.Sal A 2.5 mg/kg improved acute myocardial ischemia in rats was equivalent to Sal B 10 mg/kg.

【Objective】To observe therapeutic effect of Guishen Pill(GP) combined with acupuncture(AP) for male immune infertility(MII) and to investigate influence on acid phosphatase(ACP) in seminal plasma.【Methods】One hundred and five MII patients were equally randomized into three groups.Group A received GP combined AP,group B received GP and group C received prednisone.The therapeutic effect was evaluated in the three groups after treatment,and the changes of ACP were observed before and after treatment.【Results】The total effective rate was 91.43%,88.57% and 68.57%,and the cure rate was 45.71%,22.86% and 11.43% in groups A,B and C respectively.The difference of total effective rate was significant in groups A and B as compared with that in group C(P

0 05). However, the gray of G cells were significantly enhanced( ?

Objective To study the genome dynamics of Y. pestis and look for the relationship between its genome microevolution and niche adaption.Methods The DNA microarray combined with PCR was used to perform comparative genomic analysis of natural populations of Y.pestis.Results It was revealed that considerable genome dynamics of Y. pestis were the result of gene acquisition and loss in genome. We established a genomotyping system to group homologous isolates of Y. pestis, drew an outline of parallel microevolution of the Y. pestis genome, and established the link between the bacterial niche adaptation and genome microevolution.Conclusion The transmission, colonization and expansion of Y. pestis in natural foci are the results of its parallel, directional and gradual adaptation to the complex interactions among the environment, the hosts, and the pathogen itself.

Objective To identify the DNA tag sequences with the purpose of rapid and specific characterization of Y. pestis. Methods DNA microarray hybridization combined with PCR was used to perform genomic comparison between strains of Y. pestis and Y. pseudotuberculosis in order to screen and identify Y. pestis-specific genes. Results Twenty eight signature genes of Y. pestis were discovered. Three pairs of Y. pestis-specific primers were designed according to tag genes and proved to amplify the specific sequences of the target bacterium, showing no cross-reaction with the closely related Y. pseudotuberculosis and a large collection of genomic DNAs from other organisms. Conclusion DNA tag sequence is an ideal target for the rapid detection and identification of Y. pestis by PCR method.

Objective To investigate the effect of cytochrome P_ 450 2A6 (CYP2A6) genetic polymorphisms on serum concentration of sodium valproate. Methods A total of 98 epileptic patients receiving sodium valproate after a period of more than 5 half-time were recruited. The genotypes of CYP2A6 of the patients were detected by nested-primer polymerase chain reaction (PCR) to examine the alleles CYP2A6*1 and CYP2A6*4. Fluorescence polarization immunoassay (FPIA) was used to measure the serum concentration of sodium valproate. Results Of the 98 cases, 73 (74.5%) were wild genotypes, 24 (24.5%) were CYP2A6*1/*4 genotypes and 1(1.0%) was CYP2A6*4/*4 genotype. According to the genotypes of CYP2A6 the patients were divided into two groups,one was group A (CYP2A6*1/*1) and the other was group B (CYP2A6*1/*4 or *4/*4). The mean value of the serum concentration of sodium valproate of the patients in group A(4.1393?0.2793) was higher than that in group B(3.3486?0.3919) with a statistical significance (P

Objective To observe the baseline characteristics and visual outcomes after two years follow-up of exudative age-related macular degeneration (AMD) patients treated with ranibizumb. Methods Forty-four eyes of 44 patients with exudative AMD were enrolled into this retrospective study, 19 were men and 25 were women. The mean age was 78 years (range 64–92 years). All patients were underwent best corrected visual acuity (BCVA, Early Treatment of Diabetic Retinopathy Study), fundus color photography, fundus fluorescein angiography (FFA), indocyanine green angiography (ICGA) and optical coherence tomography (OCT). The mean BCVA was (50.36±14.43) letters, the mean central foveal thickness (CFT) was (291.95± 82.19)μm, and the fluorescence leakage area of choroidal neovascularization (CNV) was (7.61±5.84) mm2. All patients received three initial intravitreous injection of ranibizumb (IVR) and were retreated with monthly IVR when needed. The mean follow up time was 25.6 months (range 24–29 months). On 1, 2, 3, 6, 12, 18 and 24 months after treatment, BCVA and OCT were repeated. On 3, 6, 12, 18 and 24 months after treatment, FFA and ICGA were repeated. The change of BCVA, CFT and fluorescence leakage area of CNV were observed. The association of baseline characteristics and two year visual outcomes were analyzed. Results On 1, 2, 3, 6, 12, 18 and 24 months after treatment, the BCVA were improved significantly (t=?1.89,?3.51,?4.61,?4.04,?5.77,?4.69;P<0.05), the CFT were decreased significantly (t=1.51, 2.30, 3.40, 3.28, 3.54, 3.88, 3.73;P<0.05). On 3, 6, 12, 18 and 24 months after treatment, the fluorescence leakage area of CNV were reduced significantly (t=2.12, 2.90, 3.51, 4.12, 4.06;P<0.05). The lower baseline BCVA, the more improved after treatment. The BCVA improvement degree has a negative relationship with baseline BCVA and fluorescence leakage area of CNV (r=0.505,?0.550;P<0.05), but no correlation with baseline CFT (r=0.210, P>0.05). Conclusion Two year visual outcomes of exudative AMD patients treated with ranibizumb is negative correlated with baseline BCVA and fluorescence leakage area of CNV, but not correlated with baseline CFT.