Objective To summarize the perioperative nursing of modified maze procedure using bipolar radiofrequency ablation accompanied with valve replacement for the surgical treatment of heart valve diseases complicated with permanent atrial fibrillation (AF).Methods A total of 55 patients with permanent AF and heart valves diseases were undergone surgical treatment from June 2010 to February 2013 in the Second Affiliated Hospital of Anhui Medical University.Preoperative psychological care and health education were given to patients.The Medtronic Cardioblate 68000 flush bipolar radiofrequency ablation system was applied to all patients.After valve replacement surgery in addition to routine care,rhythm and heart rate monitoring were paid attention to,maintenance of cardiac function,observation of drainage,maintenance of electrolyte balance,observation of pacemaker,observation of amiodarone medication and nursing,as well as health guidance and psychological care were implemented.Results The surgery of 55 patients was successfully completed.The day after surgery,atrial fibrillation in 48 cases turned into sinus rhythm.In all patients,2 of them had suffered Ⅲ degree atrioventricular block after surgery and permanent pacemakers were applicated.There were no cardiac perforation and non-hospital mortality.The average length of stay was(12.5±2.1) d.The mean follow-up was(8.6±3.0) months.87.3％ of patients maintained sinus rhythm,9.1％ in AF rhythm,3.6％ in paced rhythm.Conclusions Modified maze procedure using bipolar radiofrequency ablation is a simple,safe and effective surgical procedure for the treatment of permanent atrial fibrillation.High quality of perioperative nursing is to improve the success rate of surgery and the key to reduce mortality.

Background Leber hereditary optic neuropathy (LHON) is a maternally inherited disorder characterized by a bilateral acute or subacute painless central visual loss in young adults,predominately in males.So far no one theory can completely explain all clinical manifestations of LHON.Objective This study was to investigate whether there is a linkage between X-chromosomal and mitochondrial mutation in the inheritance of a Chinese LHON pedigree with only male patients.Methods This study was approved by Ethic Committee of Affiliated First Hospital of Zhengzhou University and followed by Declaration of Helsinki.A Chinese LHON pedigree was included in Anyang city from January 2008 to August 2016.Periphery blood of 5-10 ml was collected from 4 sufferers,13 maternal members and 10 non-maternal members for DNA extraction and PCR sequencing.The gene scanning and genotyping analysis were performed by ABI-PRISM 3100 genetic analyzer and Genotyper 3.7 software,and linkage analysis was carried out with Linkage software for the calculation of logarithm of odds (LOD).Mitochondrial DNA (mtDNA) sequence,fluorescence-based Genescan for X-chromosomal sequence were analyzed in the propositus and haplotype was evaluated.Results A total of 5 generations and 71 families were included in the pedigree,with 6 male sufferers,30 maternal members and 41 non-maternal members.The visual acuity was ≤0.10,and the central visual field defection,the optic nerve flushing was found in the acute phase,different levels of the optic nerve fibers atrophy were found in the chronic phase;visual evoked potential (VEP) amplitude was low and peak latency were found in the male patients,and no any ocular abnormality was seen in the maternal members,meeting a maternally inherited characteristics,with the penetranee of 20％.The three primnary mutations were not been found in this family bv PCR sequencing,mtDNA sequencing appeared 31 variation of loci in the proband,including a known G3635A mutation,as well as an unknown ND5 A12340G missense mutation and ND4 T11809C synonymous mutation as well as 28 polymorphism of locus,and the proband was mitochondrial haplotype F1.The maternal families were mutation carriers of G3635A and AI2340G loci,while the same mutation was not found in the normal family members and 107 controls.The maximum two point parametric LOD score was 1.46(θ=0.0) for marker DXS1060,1oeated at Xp22.3,and the two-point and multipoint non-parametric linkage analysis were significant (all at P＞0.05).Conclusions The ND5 A12340G and ND1 G3635A mutations coexist in this LHON family,and the ND5 A12340G mutation is a newly reported mutation.There is no evidence for an X-linked modifiers loci in this Chinese LHON family.

Objective To establish a method for the determination of organochlorine and organophosphorus pesticides residues in vegetables.Methods The heavy-caliber capillary gas chromatography and the program control temperature were used to separate and determine the residuals of the pesticides.Results As for the organophosphorus pesticides, the detection limits were 0.004-0.008 mg/kg;The linear range was 0.5-5.0 ?g/ml;The correlation coefficients were 0.996 5-0.999 0;The rates of recovery were 88.47%-96.51%;Relative standard deviations were 2.98%-5.16% .As for the organochlorine pesticides, the detection limits were 0.0007-0.001 mg/kg;The linear range was 0.002-0.2 ?g/ml;The correlation coefficients were 0.999 4-0.9997;The rates of recovery were 86.51%-98.45%;Relative standard deviations were 2.47%-5.32%.Conclusion This method may efficiently separate and determine the organochlorine and organophosphorus pesticides residues in vegetables with good sensibility and accuracy.

By using thrombolysis therapy,34 patients suffering from actue myocardial infarction were treated .And by comparing chromium,cobalt,nickel,vanadium and molybdenum contents in serum of 34 patients suffering from acute myocardial infarction with that of contrast group and the contents between before-treatment and after-treatment,following results were revealed;treatment before chromium,cobalt,nickel,vanadium and molybdenum contents in serum of the patients were low and there is great difference between the patients and control groups(P0 05).

Objective To study the role of the chimeric hsp70/CD80 DNA vaccine for treatment for TB. Methods C57BL/6N mice challenged with H37Rv were immunized with the chimeric hsp70/CD80 DNA vaccine, hsp70 DNA vaccine and BCG in order to compare the therapeutic role of these vaccines. Results The levels of interferon ? (IFN-?) in the serum of mice in hsp70/CD80 group (1336.98?129.64) pg/ml was significantly higher than in group BCG (121.54?56.39) pg/ml, pcDNA3 (192.00?64.36) pg/ml and pcDNA3 hsp70 (542.33?99.77) pg/ml. The growth of Mycobacterium tuberculosis in live and spleen were inhibited significantly in hsp70/CD80 vaccinated mice. Conclusions The chimeric hsp70/CD80 DNA vaccine was more efficient than BCG and hsp70 DNA vaccine alone in treating TB.

Objective To assess the feasibility of K value of dynamic contrast enhanced MRI (DCE-MRI) in evaluation of anti-angiogenic effects on nude mice with orthotopic transplantation tumor model of gastric cancer.Methods Nude mice with orthotopic transplantation tumor model of gastric cancer were randomly assigned to two groups:Treatment group (n =15),mice were given apatinib intragastrically for 18 days (100 mg/kg),and control group (n=15),mice were given ddH2O2 in the same manner.After 18 days,DCE-MRI was performed and K value was measured.Then the tumors were dissected from the adjacent tissues in order to detect the microvessel density (MVD) and vascular endothelial growth factor (VEGF) expression levels.MVD and VEGF expression level were compared between treatment group and the control group.Results MVD (x2 =4.89,P＜0.05) and VEGF expression level (x2 =8.69,P＜0.01) of treatment group were much lower than those of control groups.The Kt value of treatment group was significantly lower than that of control groups ([0.63±0.05]/min vs [1.66±0.23]/min,t=17.05,P＜0.01).Conclusion The value of k in DCE-MRI can be utilized to assess the effects of apatinib on nude mice with orthotopic transplantation model of gastric cancer.

Objective To investigate the possible effects on radiosensitivity in human umbilical vein endothelial cells after transfection of pcDNA3.1+Ape1 plasmid. Methods The expressing vector pcDNA3.1+ Ape1, the control vector pcDNA3.1+or non-transfection cells was irradiated by 2, 4, 6, and 8 Gy photon beam at 48 h post-transfection. The value of initial and residual Oliver tail moment (OTM) under the alkaline single cell gelelectrophoresis assay and the colony forming test were utilized as the markers for the evaluaton of cells intrinsic radiosensitivity. The effect on radiosensitivity in human umbilical vein endothelial cells after transfection of the expressing vector pcDNA3.1+Ape1 was analyzed according to the radio-dose, compared to the empty vecor control and non-transfection cells. Results The initial and residual OTM value of endothelial cells transfected by 3 μg pcDNA3.1+Ape1 plasmid was lower significantly than ones of endothelial cells untransfected at 2 Gy irradiation (P<0.01), but was no significant difference at 8 Gy (P>0.05), and SF2 was higher remarkably in transfected cells than one in untransfected cells (P<0.05), but SF4, SF6 and SF8 were no significant differences (all of P>0.05). Conclusions The transfection of pcDNA3.1+Ape1 plasmid could enhance radioresistance of endothelial cells to the low-dose irradiation.

This study developed a novel approach of targeting malignant glioma with pMAGE-A1(278-286)-specific cytotoxic T lymphocytes (CTLs) induced from the peripheral blood mononuclear cells of healthy donors by multiple stimulations with human leukocyte antigen (HLA)-A2-restricted pMAGE-A1(278-286) peptide-pulsed dentritic cells. Cytotoxic assays were performed by the colorimetric CytoTox 96 assay to analyze cytotoxic activity of the induced CTLs against various target cells. The induced CTLs showed approximately 45% specific lysis against T2pMAGE-A1(278-286) (pMAGE-A1(278-286) peptide pulsed T2 cells) and U251 (HLA-A2(+), MAGE-A1(+)) at an effector:target ratio of 40:1, and approximately 5% cytolysis against T2pHIV, A172 (HLA-A2(-), MAGE-A1(+)), K562 and T2 cells without being pulsed with peptide at any effector:target ratio. The specific killing activity of the induced CTLs against T2pMAGE-A1(278-286) and U251 was much more obvious than in any other control group (P<0.05). The cytotoxic activity against the T2pMAGE-A1(278-286) and U251 was significantly eliminated by anti-HLA class I mAb W6/32. These results suggest that pMAGE-A1(278-286) epitope may serve as a surrogate tumor antigen target of specific immunotherapy for treating HLA-A2 patients with malignant glioma.

Objective To investigate the effect of angiotensin-(1-7) on the expression of cellular c-fos in angiotensin II -induced proliferative glomerular mesangial cells (GMC). Methods GMC were treated with angiotensin II and different dose of angiotensin-(1-7). GMC number were evaluated by crystal violet staining and the expression of c-foe were detected by western blot. Results Angiotensin-(1-7) inhibit angiotensin II -induced GMC proliferation as well as the expression c-foe in a concentration dependent manner. Conclusion c-fos is involved in the inhibiting effects of angiotensin-(1-7) on angiotensin II -induced GMC proliferation.

OBJECTIVE:To provide a reference for reducing adverse events due to off-label use of drugs and promoting ratio-nal use of intravenous drugs in Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine. METHODS:The pre-scriptions of intravenous drugs in 42 wards of our hospital from Jul. 2013 to Jun. 2014 were reviewed,and then off-label use of drugs were analyzed,where statistics was made mainly to drug overdose,the use of drugs at the concentration beyond the standards (including concentrations too high and too low) and associated conditions. RESULTS:There were 622 irrational prescriptions,in-cluding 60 concerning off-label use of drugs,accounting for 9.6% of irrational prescriptions,in which 40 were involved with the concentration which was too high,accounting for the highest percentage(66.7% of prescriptions related to off-label use of drugs), 17 were related to drug overdose(28.3% thereof),and 3 were in relation to the concentration which was too low(5.0% thereof). CONCLUSIONS:Pharmacy intravenous admixture service may,through the communication between the pharmacist and the doc-tor,refuse to make up the above-mentioned prescription which was found to be irrational(including that involving in off-label use of drugs)or make up such prescription after it is modified according to the requirements as specified in the label to reduce the occur-rence of off-label use of drugs so as to promote rational drug use.