Objective To investigate the retinal pigment epithelium cells(RPE) and makeit the base of clinical application for transplantation.Methods The cultured RPE cells labeled by BrdU was injected into the host's subretinal space by external transcleral.The structure and ultrastructure of the transplanted RPE cells were observed by microscope and transmission electron microscope.Results The transplanted cells had the normal structure as the host's cells.They attached to Bruch's membrane with basal infoldings and forming microvill on the surface of the cells.Conclusion The external transcleral is a practical method for RPE transplatation.The transplanted cells can vitalize and form some normal ultrastrcture.

Cardiopulmonary exercise test and electrocardiogram exercise test were performed in 68 patients with suspected coronary artery disease,the diagnostic value of two tests was compared with coronary angiography results as the gold standard.The results show that the sensitivity,specificity,positive predictive value and negative predictive value of electrocardiogram exercise test for coronary heart disease were 51.28％,68.97％,68.97％ and 51.28％ respectively; those for ratio of O2 pulse peak in cardiopulmonary exercise test were 51.28％,75.86％,74.07％ and 53.66％ respectively.It suggests that the results of cardiopulmonary exercise test may have the same value as electrocardiogram exercise test in diagnosis of coronary artery disease.

ObjectiveTo evaluate the accuracy of measurement of left ventricular(LV) volume and function in coronary heart disease(CHD) by real-time three-dimensional echocardiography(RT-3DE) using cardiac magnetic resonance imaging (CMRI).Methods LV end diastolic volume(EDV),LV end systolic volume(ESV) and LV ejection fraction(EF) were measured with RT-3DE in patients with CHD ( n =37) and in the control ( n =30).The results measured by RT 3DE were compared with those of CMRI.The diagnostic value of RT-3DE was evaluated using receiver operating characteristic(ROC) curve.Results Compared with that measured by CMRI,EDV,ESV and EF by RT 3DE( P ＞0.05) were almost similar as that in the control.Area under ROC curve of in EDV and ESV were 0.912 and 0.944 in the control.However,EDV determined by RT-3DE was smaller than that by CMRI( P ＜0.05) in CHD group.A difference (10.95 ± 31.26 ml) was existed in EDV between the two methods.ESV measured by RT-3DE was smaller than that calculated by CMRI( P ＞0.05) with a mean differance of (3.17 ± 16.42)ml in CHD group.EF by RT-3DE( P ＞0.05)was almost as same as that by CMRI in CHD group,with a mean difference of (1.54 ± 11.85)％.The area under ROC curve of EDV and ESV were 0.834 and 0.873 in CHD group and their diagnostic performance was moderate.ConclusionsMeasurment of LV volume and function by RT 3DE in control was more acurrate than that in CHD.In the cases of LV remodeling in patients with CHD,RT-3DE would underestimate the LV volume.

Objective To investigate the status of psychosomatic health on the aged in reservoir area of three gorges .Study men-tal sub-health population distribution and the related influencing factors of the aged .Methods 604 elderly of reservoir area of three gorges were investigated by using self-made general questionnaire ,Cornell Medical Index(CMI) ,Eysenck Personality Questionnaire-R Short Scale(EPQ-RSC) ,Social Support Rating Scale(SSRS) ,Activities of daily living (ADL) ,Memorial University of Newfound-land Scale of Happiness(MUNSH) .Results 14 .7% aged′s mental health was in the sub-healthy status .Older age ,low education level ,no spouse ,urban elderly people were higher in mental sub-healthy .There was significant difference between mental sub-healthy group and mental healthy group in the aspect of personality 、social support、subjective well-being、activities of daily living (P<0 .05) .Conclusion The elderly psychosomatic health status of the Three Gorges Reservoir area is good ,with low incidence of mental sub-health ,their psychosomatic health more affected by the state of mind .

Background Laser peripheral iridoplasty (LPI) is widely used in the treatment of glaucoma by flattening the iris and widening angle of anterior chamber (AA).However,no evidence suggests the optimal site of LPI in iris.Objective This study was to compare the therapeutic effects of LPI at different sites of iris for glaucoma.Methods Glaucoma models were established in the right eyes of 40 healthy adult male pigment rabbits by intrachamber injection of 0.1 ml compound carbomer solution with 0.3％ carbomer and 0.025％ dexamethasone.The models were randomly divided into model control group,corneoscleral limbus group,one spot from corneoscleral limbus group and two spots from corneoscleral limbus group.LPI was performed at corresponding site of iris by 532 nm argon laser with the spot diameter 500 μm,energy 300 mW,exposure time 0.3 seconds and laser number 24 spots,and the rabbits in the model control group did not receive LPI.Intraocular pressure (IOP),coefficient of outflow facility (C value) were measured and calculated with Schi(o)tz tonometer before LPI and 2,4,7,14 and 30 days after LPI,and anterior chamber depth (ACD),AA,anterior chamber angle opening distance within 500 μm radius from scleral spur (AOD500) were measured with ultrasound biomicroscope (UBM).The eyeballs were extracted 30 days after LPI,and the chamber angle were observed under the optical microscope after hematoxylin and eosin staining.The use and care of the animals complied with the Guide for the Care and Use of Laboratory Animals of the National Institutes of Health.Results UBM showed that compared with the model control group,the anterior chamber angle was evidently widened in all the LPI groups,with the best effectiveness in the one spot from corneoscleral limbus group and the worst one in the two spots from corneoscleral limbus group.Compared with the model control group,the IOP was evidently reduced,and C values,AA and AOD500 were significantly increased in the corneoscleral limbus group,one spot from corneoscleral limbus group and two spots from corneoscleral limbus group after LPI,showing significant differences among the four groups (IOP:Fgroup =16.848,P ＜ 0.01;C value:Fgroup =9.629,P ＜ 0.01;AA:Fgroup =62.336,P＜0.01;AOD500:Fgroup =77.779,P ＜ 0.01).IOP was reduced and C value,AA and AOD500 were increased in 2,4,7,14 and 30 days after LPI as compared with before LPI,with significant differences over time (IOP:Ftime =3.041,P =0.011;C value:Ftime =4.311,P＜0.01;AA:Ftime =14.627,P＜0.01;AOD500:Ftime =20.378,P＜0.01).Compared with the model control group,the ACD was significantly increased in the corneoscleral limbus group and one spot from corneoscleral limbus group,and that in the two spots from corneoscleral limbus group was significantly reduced,and the ACD was insignificantly increased over time after LPI (Fgroup =18.017,P＜0.01;Ftime =0.022,P =1.000).Hematoxylin and eosin staining showed that the trabecular meshwork and adhesion of tissure were reopened and the anterior chamber angle was widened after LPI.Conclusions LPI can widen anterior chamber angle and lower the IOP.The best therapeutic outcome for glaucoma is displayed when LPI is performed at the iris site corresponding to one spot from the corneoscleral limbus.

Objective To explore mental health status of rural elderly and itassociated factors of mental health in Chongqing . Methods Totally 990 rural community residents aged 60 years or more were selected by multi-stage stratified random sampling and investigate with self-designed screening inventory to pick out suspect psychosis ,then diagnose according to DSM-Ⅳ and CCMD-3 . For no psychosis ,investigated with symptom self-assessment scale(SCL-90) ,newfoundland happiness scale ,social support rating scale ,eysenck personality questionnaire short form scale (China) .Results (1) In 990 the elderly ,the screening positive rate was 24 .04% (238/990) ,prevalence rate was 19 .43% (193/990) .Diagnosis were mental disorders caused by acohol(11 .4% ) ,mental dis-orders due to physical dysfuction (5 .96% ) ,mood disorders and other psychiatric disorders (2 .12% ) .(2)17 .17% (124/722) rural elderly had psychological problems in 799 non-mental health elderty ,in which the screening positive rate and total scores of SCL-90 in family group were significant higher than the institute group screening positive rate (screening positive 20 .24% vs .3 .73% ,χ2 =20 .90 ,P=0 .000 ;total scores(109 .14 ± 11 .77)vs .(100 .59 ± 7 .87) ,t= -8 .01 ,P= 0 .000) .(3)According to the total score of SCL-90 ,those female ,without spouse ,negative life events ,live alone ,with chronic disease ,with little income had worse mental health(P<0 .05) .(4)Total score of SCL-90 in rural elderly was significant negatively correlated with total score of happiness ,posi-tive emotions ,positive experience ,all dimensions of social support and internal and external .the score was significant positively cor-related with negative emotions ,negative experience ,neuroticism ,psychoticism ,the differences were statistically significant ( P<0 .05) .(5)Negative emotional ,mental quality ,chronic diseases ,endowment way ,marital status ,whether to live alone ,total score of social support ,neurotic entered the regression equation ,determination coefficient R2 =0 .346 .Conclusion More than 1/3 of the ru-ral elderly with mental health problems ,the pension way was the most obvious impact .prevention and treatment of alcohol-induced mental disorders ,changes in pension mode was still the focus of rural elderly mental health work .

Objective To evaluate the efficacy and tolerability of zonisamide (ZNS) as add-on therapy in patients with refractory partial seizures.Methods In this Chinese muiticenter, double-blind, randomized, placebo-contrclled trial, ZNS was compared with placebo add-on therapy in 217 patients (intent-to treat (ITT) population) with uncontrolled partial-onset seizures.All patients entered a 3-month baseline period followed by a 4-week titration interval and a 12-week maintenance period.The starting dose of ZNS group was 100 mg/d, increased by 100 mg/d every week and reached the goal of 400 mg/d.The main outcome was measured by the median of the percentage of decreased seizure frequency.The secondary ouwomes points included the percentage of patients who had seizure attacks decreased by more than 50%,and adverse events.Results The median of the percentage of decreased seizure frequency in ZNS group was 33.33%, and the placebo group was 0.Thirty-eight patients (34.23%) experienced more than 50% reduction in the seizure frequency in ZNS group, compared with 19.81% of patients (21 cases) in the placebo group (χ2 =5.7159,P =0.0168) ; Moreover, 13 (11.71%) patients in ZNS group and 5 patients in placebo group were seizure free, 25 patients in ZNS group and 16 patients in placebo group who had seizure attacks decreased by more than 50%.The availability rate in ZNS group was higher than placebo group (34.23% vs 19.81%, U=2.4701, P=0.0135).The most common adverse events in ZNS group were drowsiness, fatigue, decreased appetite, gastrointestinal complaints, insomnia and constipation.Conclusion Zonisamide treatment was generally well tolerated and was associated with significant reductions in seizure frequency as adjunctive treatment for partial-onset seizures.

One strain F05 which had better antagonism for American ginseng rust rot was obtained from continuous cropping ground, and its fermentation had been preliminarily studied, more over the research can further determine the optimum composition. The single factor and uniform design were used to optimize the formulation medium. The identified formulation was powder of cornstalks 3.7206%, (NH4)2HPO4 0.5312%, MgSO4 0.0355%, K2HPO4 0.0400%. The bacteria number was 1.57 x 10(9) per milliliter culture solution.
Actinobacteria ; chemistry ; isolation & purification ; metabolism ; Culture Media ; chemistry ; metabolism ; Fermentation ; Panax ; microbiology ; Plant Diseases ; microbiology

UNLABELLEDOBJECTIVE To evaluate the aesthetic effect of restorations with custom pressable metal ceramic abutments for defective soft and hard tissue in the maxillary anterior zone.

METHODSFifty-two patients with missing anterior teeth in the maxillar were selected, who had problems such as exposure of abutment metal, excessively large angle deviation, excessively long ceramic crown and missing gingival papilla, affecting the aesthetic effect of implant denture. Custom pressable metal ceramic abutments were made on the conventional castable metal abutment surface and restored with all-ceramic crowns to overcome the blackness at the implant neck.

RESULTSClinical evaluation for aesthetic effects 3 and 6 months after the restorations were placed. In 63 restorations of 52 patients, the blackness at the implant neck were eliminated and the aesthetic effect were ideal. The gingival was in healthy condition, showing no further gingival retreat or inflammation around the implant denture.

CONCLUSIONCustom pressable metal ceramic abutments can effectively improve the aesthetic appearance of the implant denture in maxillary anterior zone.

Objective: To investigate the clinical application and effect evaluation of failure mode and effect analysis (FMEA) in the optimization of vascular recanalization in patients with ST-segment elevation myocardial infarction (STEMI). Methods: A total of 389 STEMI patients admitted to the emergency department of the Fifth Central Hospital in Tianjin from January 2014 to January 2015 were served as the control group, and 398 STEMI patients admitted to the chest pain center of the Fifth Central Hospital in Tianjin from January 2016 to October 2017 were served as the experimental group. In the control group, routine emergency treatment was used. At the same time, the intervention room was 24-hour prepared for emergency vascular recanalization. The experimental group used FMEA. Through the usage of FMEA, the main factors those caused the delay in revascularization treatment were determined, and the revascularization process was optimized for these influencing factors, thereby shortening the "criminal" blood vessel opening time of patients. The door-to-balloon dilatation time (D-to-B time), troponin testing time, placement time of the catheterization room, initiation of the catheterization room to balloon dilatation time, and preoperative and 1 week postoperative N-terminal pro-brain natriuretic peptide (NT-proBNP) levels, heart function parameters [left ventricular ejection fraction (LVEF), left ventricular short axis shortening rate (FS), left ventricular end-systolic diameter (LVESD), and left ventricular end-diastolic diameter (LVEDD)] within 1 week, 3 months and 6 months after intervention, and the incidence of main cardiovascular adverse events within 1 month after intervention, hospital mortality, the length of hospital stay, and readmission within 1 year in the patients of two groups were recorded. Results: D-to-B time (minutes: 70.6±3.6 vs. 79.4±8.7), troponin testing time (minutes: 17.1±2.3 vs. 65.2±6.5), placement time of the catheterization room (minutes: 28.9±9.8 vs. 52.3±12.2) and activation of the catheterization room to balloon expansion time (minutes: 47.3±9.3 vs. 65.1±7.2) in the experimental group were significantly shorter than those in the control group (all P < 0.01). The NT-proBNP levels at 1 week after intervention in the two groups were lower than the preoperative levels, slightly lower in the experimental group, but the difference was not statistically significant. There was no significant difference in cardiac function at 1 week and 3 months after intervention between the two groups. The LVEF and FS at 6 months after intervention in the experimental group were significantly higher than those in the control group [LVEF: 0.622±0.054 vs. 0.584±0.076, FS: (38.1±4.3)% vs. (35.4±6.2)%, both P < 0.01], and LVESD and LVEDD were decreased significantly [LVESD (mm): 31.2±3.8 vs. 34.7±4.2, LVEDD (mm): 49.2±5.3 vs. 52.4±5.6, all P < 0.01]. The length of hospital stay in the experimental group was significantly shorter than that in the control group (days: 8.3±3.2 vs. 13.2±6.8, P < 0.01), the incidence of major cardiovascular adverse events within 1 month after intervention [13.6% (54/398) vs. 19.8% (77/389)], hospital mortality [1.8% (7/398) vs. 4.9% (19/389)], and readmission rate within 1 year [9.5% (38/398) vs. 14.5% (56/389)] in the experimental group were significantly lower than those in the control group (all P < 0.05). Conclusion The usage of FMEA to optimize the vascular recanalization procedure can shorten the emergency treatment time of STEMI patients, reduce the occurrence of adverse events, and improve the prognosis.