Objective To explore the application of hysteroscopy in assisted reproduction. Methods A retrospective analysis was made on results of routine hysteroscopy in 150 cases of infertile women scheduled for assisted reproduction.Results Among the 150 cases,abnormal hysteroscopic findings were identified in 47 cases(31%),including endometrial polyps in 18 cases(12%),endometrial hyperplasia in 17 cases(11%),uterine deformity in 7 cases(5%),uterine adhesion and stenosis in 3 cases(2%),endometrial tuberculosis in 1 case(0.7%),and submucous myoma or adenomyoma in 1 case(0.7%).To think of hysteroscopic findings as the standard,the sensitivity,specificity,positive predicted rate,negative predicted rate,and accuracy were 66%(31/47),98%(101/103),94%(31/33),86%(101/117),and 88%(132/150) for transvaginal ultrasonography,respectively,and were 26%(12/47),100%(95/95),100%(12/12),73%(95/130),and 75%(107/142) for uterophotography,respectively.Conclusions Hysteroscopy is a simple and reliable way to explore the uterine cavity.It may be selected as a routine examination before assisted reproduction.

Humans ; Vision Disorders/etiology* ; Visual Acuity

Ten compounds were isolated from the artificially induced dragon's blood of Dracaena cambodiana by various column chromatographies on silica and sephadex LH-20 gel. Based on spectral analysis of NMR and MS, their structures were identified as 3, 4-dihydroxyallylbenzene (1), 3', 4', 5'-trimethoxycinnamylalcohol (2), pinoresinol (3), (2R)-7, 4'-dihydroxy-8-methylflavane (4), (2R)-7,4'-dihydroxy-5-methoxy-8-methylflavane(5),(2S)-7,3'-dihydroxy-4'-methoxy-8-methylflavane(6) ,(2S)-4',7-dihydroxy-6, 8-dimethylflavane(7), 4,2',4'-trihydroxychalcone(8), 4,4'-dihydroxy-2-methoxydihydrochalcon(9) and Cambodianin E (10). Antibacterial activity assay showed that compounds 1, 4 and 10 have inhibitory effect on Fusarium oxysporum f. sp. cuben, Fusarium oxysporum f. sp. niveum, Fusarium oxysporum f. sp. vasinfectum and Ralstonia solanacearum.
Antifungal Agents ; chemistry ; isolation & purification ; pharmacology ; Dracaena ; chemistry ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; pharmacology ; Fusarium ; drug effects ; Molecular Structure ; Plant Extracts ; chemistry ; isolation & purification ; pharmacology ; Spectrometry, Mass, Electrospray Ionization

Animals ; Electric Stimulation ; Hippocampus ; physiology ; Male ; Nerve Endings ; physiology ; Rats ; Rats, Sprague-Dawley ; Vagus Nerve ; physiology

Objective To evaluate the value of diagnostic negative MDCT cholangiopancreatography in patients with suspected obstructive biliary diseases by receiver operating characteristic(ROC)curve. Methods Dual-phases contrast-enhanced MDCT of the abdomen was performed in 30 patients.Multiplanar reformation,minimum intensity projection and volume rendering were generated using original data in vein phase.By double-blind method,the images were readed by two radiologists.ROC curves were analysed with software SPSS11.5,the different results of reading images between two radiologists was evaluated with Kappa test.Results The Az of the area under the ROC curve of MDCT cholangiopancreatography for the two observers was 0.968 and 0.962 respectively,it was more than 0.9,which showed that the value of diagnosing the suspected obstructive biliary diseases by negative MDCT cholangiopancreatography was good.Kappa index test was satisfactory.Conclusion Negative MDCT cholangiopancreatography may be a routine choice in diagnosing the suspected obstructive biliary diseases.

From the perspective of clinical doctors, in the teaching idea, national policy, school policies and different stages of clinicians cultivation , the article introduced the concept of translational medicine in the process of the clinical doctors tralning in the United States. It described US medical schools' (U.S. Virginia University School of medicine, for example) implementation ap-proach of translational medicine ideas in different stages, such as before entering school, during the period of school, practice exam and physician clinician tralning. It provided the reference for the de-velopment of translational medicine education in the process of China clinician education and tralning, including:medical students' integration into the related clinical research in preschool through volunteer service, the choice of multiple combination model of clinical science and basic research, interdisci-plinary examination of medical practitioners and the provisions of the research work in resident and specialist tralning stage.

Objective To develop a new designed Kirschner wires guider for patellar fracture,and to evaluate its clinic outcomes.Methods From October 2010 to November 2015,totally 72 patients with patellar fracture were detected for this study.Divided them into 3 groups, named as the second-generation guider group,the first-generation guider group and the control group.And then evaluated the clinic outcomes in treatment of patellar fracture of the 3 groups.Results The surgery time,accuracy of placement needle position of the second-generation guider group were better than the other two groups with significant statistical differences (P <0.01).And the clinic outcomes of the first-generation guider group were better than the control group,and the differences were statistically significant (P <0.05).Conclusion The second-generation Kirschner wires guider is reasonable in design and convenient for use.Moreover,it can improve the accuracy and quality of surgery,reduce the operation time,and enhance the clinical effects.

Objective To explore an effective way for medical students and young surgeons learning operative approach .Methods A total of 50 medical students and young surgeons in our hospital were detected for this study .They were randomly divided into the BOOK class (group A) and the 3D computer class (group B) to learn the course of anthropotomy.After learning each section, they were examined to-gether on fresh corpse , and the examined results of the two groups were compared and assessed .Results In the general surgery examina-tions, there was no difference in the examined results with no statistically significant difference (P>0.05).But in the orthopedics examina-tions, the difference of intra-group comparison both in group A and group B were of statistical significance (P<0.05), and the results of group B were better than group A with statistically significant difference (P<0.05).Conclusion For the general surgical approach learn-ing, both of the two methods could achieve good effect .For the orthopedics surgical approach learning ,it can receive better results through computer software ,but it still cannot achieve the ideal effect ,which indicates that the teaching through fresh corpse could not be replaced yet .

Objective To investigate the effect of reserpine,an efflux pumps inhibitor,on the activities of fluoroquinolones (FQNs) against Enterococci,and the distribution of efflux pump genes emeA and its correlation with the resistance of Enterococci.To elucidate the relationship between FQN resistance in Enterococci and active efflux.Methods One hundred isolates of enterococci were identified by VITEK microbe automatic system.The antibacterial agent susceptibility tests were performed by the disc diffusion method (K-B) in accordance with the CLSI standards.The minimum inhibitory concentration (MIC) of each FQN was tested by the agar dilution method,and the MIC changes were detected after adding reserpine.The distribution of emeA in 100 isolates of Enterococci was determined by PCR.Thex2 test was used to compare the differences of statistical results.Results After reserpine was used,three-FQN resistance in Enterococci was reduced.Ciprofloxacin,gatifloxacin and levofloxacin resistance was reduced from 42％ (42/100) to 28％ (28/100),from 30％ (30/100) to 17％ (17/100),and from 33％ (33/100) to 23％ (23/100),respectively.The positive rate of emeA gene in 100 strains of Enterococci was 55％ (55/100).There were 45 positive strains(72.6％) in 62 E.faecalis and 10 positive strains (26.4％) in 38 E.faecium.The positive rate of emeA gene in the resistant strains against ciprofloxacin,gatifloxacin and levofloxacin was 73.8％ (31/42),76.7％ (23/30),75.8％ (25/33),respectively,and the positive rate of emeA gene in the susceptible strains against above 3 antibacterials were 41.4％ (24/58),45.7％ (32/70),44.8％ (30/67).Efflux pump genes emeA in resistant strains is higher than the sensitive strains,with the statistically significant difference(x2 =13.02,8.13 and 8.57,P ＜ 0.005).Conclusions Reserpine could inhibit the active efflux of in FON Enterococci and reduce the MIC for drug-resistant strains in vitro.Multidrug-resistant efflux pump gene emeA was relevant to antimicrobial drug resistance in Enterococci.

Objective Preparation of a stable and reliable atrioventricular blockage ( AVB) animal model is of great im-portance to anti-arrhythmic drugs and biological engineering research .The aim of the article was to establish a rat model of AVB in-duced by chemical ablation, providing an effective animal model for the development of new drugs . Methods 60 adult SD rats were randomly divided into 4 groups(n=15): normal saline (NS) group, Verapmil (Ver) group, chemical ablation group 1 and chemical ablation group 2.0.9%NaCl (5 mg/kg) was injected into caudal vein of each rat in NS group .Verapmil (5 mg/kg) was injected into the caudal vein in Ver group.Anhydrous ethanol(50μL)was injected into atrioventricular groove area in chemical abla-tion group 1.Anhydrous ethanol(50μL) was injected into atrioventricular node area in chemical ablation group 2.The electrocardio-grams of the rats were examined by electrophysiological recorder.HE staining and Connexin 43 (CX43) immunohistochemical tech-nique were applied to atrioventricular junctions of the rats . Results A rat model of AVB was successfully established .Compared with NS group([45 ±2.24]per field of view), there was a significant decrease in the CX43 expressions of chemical ablation group 1 and group 2 ([15.20 ±2.23]per field of view, [22.10 ±4.70]per field of view)(P<0.05).Concerning NS group and Ver group, myocyte tissues of the atrioventricular nodal region were detected to remain in order without obvious changes and the expres-sion of CX43 immunoreactive protein was obvious under light microscope.As to chemical ablation group 1 and group 2, myocyte tissues were in degenerative necrosis and the expression of CX43 im-munoreactive protein was in lighter staining.Compared with Ver group, the incidence rate(73.3%, 60.6%) and the mortality rate (33.3%, 26.7%)of third-degree AVB decreased remarkably(P<0.05). Conclusion Chemical ablation can be induced to estab-lish a stable and reliable rat model of AVB , providing an effective
animal model for the research and development of new anti-arrhythmic drugs.