Electrocardiography ; Humans ; Takotsubo Cardiomyopathy ; Ventricular Dysfunction, Left

Drug-Eluting Stents ; adverse effects ; Humans ; Middle Aged ; Myocardial Infarction ; etiology ; Sirolimus ; administration & dosage ; Thrombosis ; etiology

At present, zebrafish has played an increasingly important role in models for human development and diseases and several areas of life sciences.As a newly laboratory animal resource, standardization research has become the technical bottleneck to be solved and an inevitable trend.In this review, we summarized the research history and character-istics of zebrafish and the status of quality standardization.We also discussed the main problem facing by the standardiza-tion research of zebrafish as a newly laboratory animal.We hope that the data can provide useful reference for the develop-ment of zebrafish quality standardization research.

Objective:To summarize the experiences of the surgical treatment of tumors in the posterior part of the third ventricle and pineal region. Methods: Twenty-seven patients with tumors in this region treated microsurgically from 1990 to 2000 were analyzed. The surgical indications, approaches, and operative key points were discussed. The prognostic factors were also analyzed. Results:Tumors were removed totally in 11 patients, removed subtotally in 7 and removed partially in 5. Biopsy and ventriculo-peritoneal shunt was performed in 4 patients. Of 17 patients in follow-up, 13 patients survived longer than 5 years. Conclusions: Most tumors in the posterior part of the third ventricle and pineal region can be surgically removed.Sufficient specimen obtained in the operation can confirm pathologic property of the tumor,guiding next chemotherapy and radiotherapy.

Adolescent ; C-Reactive Protein ; metabolism ; Cell Aggregation ; Child ; Child, Preschool ; Cytodiagnosis ; methods ; Female ; Humans ; Infant ; Leukocytes ; cytology ; Male ; Meningitis, Bacterial ; blood ; cerebrospinal fluid ; diagnosis ; Meningitis, Viral ; blood ; cerebrospinal fluid ; diagnosis ; Sensitivity and Specificity

Objective To establish a gata4 gene knockout zebrafish model of congenital heart disease, and construct transcription activator-like effector nuclease ( TALEN) vectors targeting gata4 gene.Method We construct TALEN vectors targeting zabrafish gata4 gene using unit assembly method and the in vitro-transcribed TALEN mRNAs were microinjected into one-cell stage zebrafish embryos.The efficiency of TALEN was identified by injected embryos, and mutations of zebrafish were screened and confirmed the different types through PCR and enzyme digestion.Results We successfully constructed correct targeting vectors by enzyme digestion and sequencing, and the gene knockout efficiency was 35.18%.We screened the mutant zebrafish and confirmed different types of gata4 gene mutations.Conclusions A gata4 knockout zebrafish model is successfully established, it can provide a good animal model for further research of congenital heart diseases.

Objective To evaluate the effects of pacing in right ventricular septum (RVS) on hemodynamics among atrioventricular sequential dual chamber pacing Methods Twenty patients with high grade or complete atrioventricular block received permanent dual chamber pacemaker ( DDD ),were randomized into right ventricular septum pacing group (RVS)and right ventricular apex pacing group (RVA)according to the ventricular leads position.The QRS duration of the ECG,the left ventricular ejection (LVEF),the interventricular mechanical delay( IVMD )and the plasma levels of brain natriuretic peptide (BNP)were compared before and after operations.Results Compared with the preoperation,the mean QRS duration ( ( 187.00 ± 15.67 ) ms and (94.00 ±9.17 ) ms),the IV MD ( (43.20 ± 6.79 ) ms and ( 15.00 ± 4.08 ) ms ),the level of BNP ( ( 89.70 ± 8.30) ng/L and (40.00 ± 4.73 ) ng/L) increased( P ＜ 0.05 ) and LVEF decreased significantly ( (53.70 ± 1.34) % and (58.60 ±1.65 )% ,P ＜ 0.05 ) in RVA group,but didn't change in RVS group (P ＞ 0.05 ).After three months following up,the mean QRS duration and the IVMD in RVS group( (119.00 ±7.38 )ms,(19.00 ±4.59)ms) were shorter than that of RVA group( ( 187.00 ± 15.67) ms,(43.20 ± 6.79) ms) ( P ＜ 0.05 ),the LVEF was higher and the plasma level of BNP was lower than that of RVA group ( (57.00 ± 2.00) % and ( 53.70 ± 1.34) %,(44.20 ± 9.18 ) ng/Land ( 89.70 ±8.30) ng/L,P ＜0.05).Conclusions The RVS pacing could keep the normal ventricular activation sequence and biventricular contraction synchrony farthest without side effects on hemodynamics in comparison with the RVA pacing.The RVS pacing is more approaching physiological rhythm than the RVA pacing.

Objective To investigate the electrocardiographic characteristics and assess the efficiency of ra-diofrequency catheter ablation(RFCA) in ventricular arrhythmia arising from the aortic sinus of Valsalva. Methods Eighteen patients(6 males and 12 females)were selected to undergo RFCA for ventficular arrhythmia originating from the left aortic sinus of Valsava. All of them were symptomatic,but without evidence of structural heart disease. Activation mapping was performed in the endocardium of the aortic sinus of Valsalva,then ablation was performed at the site with the earliest ventricular wave in endocardium electrograms. At the same time, coronary and aortic angiog-raphy were performed to assess the anatomic relationship between the ventricular tachycardia (VT)/ventricular pre-mature contraction (VPC) origin and coronary arteries and aortic valve before the RF energy delivery. Results Eighteen patients were successfully managed, with no major complications related to the procedure. VT eliminated and VPC counts on 24-hour ECG monitoring decreased significantly after the ablation[18 474(12 399,26 812)/24h vs 4 (1,7)/24 h, Wilcoxon signed-rank test, P<0.05]. During a follow-up period of 6 monthes, there was no recur-rence. Conclusions Ventricular arrhythmia arising from the aortic sinus of Valsalva has specific electrocardiograph-ic characteristics, and it can be successfully and safely treated under the guidance of activation mapping.

Burn patients often suffer from different degrees of dysfunction, such as residual burn wounds, formation of hyperplastic scar, scar itching, cardiopulmonary dysfunction, limitation of motion, and psychological disorders, which exert severe impact on their daily life. This article reviews various rehabilitation treatments for dysfunction after burn injury to promote rehabilitation of burn patients.
Burns ; physiopathology ; rehabilitation ; China ; Humans ; Rehabilitation ; methods

OBJECTIVETo observe anti-cancer effects of Jianpi Jiedu Recipe (JJR) on liver cancer (LC) rats with Pi deficiency syndrome (PDS) and its relation with the third complementary-determining region gene spectratyping of TCRVβ-chain (TCRVβCDR3).

METHODSRats were divided into 8 groups according to random digit table, i.e., the blank control group (normal), the PDS group, the LC model group, the LC-PDS group, high, middle, and low dose JJR groups (75.00, 37.50, 18.75 g/kg, respectively by gastrogavage, once per day), the thymus pentapeptide group (5 mg/kg, intramuscular injection, twice per week), 8 in each group. Rats in the normal group were administered with physiological saline by gastrogavage once per day. PDS rat model was prepared by bitter-cold purgation. LC model was prepared by orthotopic transplantation method. Twenty gene subfamilies of TCRβCDR3 in the thymus, liver, and LC tissues were detected by Gene Scan.

RESULTSHigh and middle dose JJR could postpone the growth of LC volume (P < 0.05), with equivalent liver index and thymus index to those of the normal group (P > 0.05). In thymus and liver tissue of the normal group, the number of clones (20 and 19), gene fragment number (220 and 113), Quasi-Gaussian distribution ratio of TCRVβCDR3 gene repertoire (100.0% and 42.1%), and fragment fluorescence peak area (6,539 ± 2,325 and 1,238 ± 439) were at the highest level among the 8 groups. TCRVβCDR3 expressions in thymus and liver tissue of high and middle dose JJR groups were approximate to those of the normal group. They were in the middle of the thymus pentapeptide group, the PDS group, the LC model group, and poorest in the LC-PDS group. TCRVβCDR3 in liver tissue expressed the best in the thymus pentapeptide group.

CONCLUSIONJJR might inhibit the growth of LC cells, and its mechanism might be related to enhancing TCRVβCDR3 spectratype expression.

Animals ; Complementarity Determining Regions ; genetics ; Drugs, Chinese Herbal ; pharmacology ; Gene Expression Regulation, Neoplastic ; Genes, T-Cell Receptor beta ; Liver Neoplasms ; drug therapy ; genetics ; Random Allocation ; Rats