The Polarographic and voltammetric behavior of Cd (Ⅱ)-meso-tetrakis(p-sulfophenyl)prophyrin (TPPS4） complex was defined and the cyclic voltammetric peak was obtained at 1.200 V (vs. SCE) in 0.3 mol/L NaoH solution. The characteristics of the peak have been examined in detail and the experimental results prove that the peak has adsorption properties. In addition to the number of electrons transferred in the reaction and the complex ratio, the stability const ant (β=1.19×107) was calculated. The peak current was proportional to the concentration of Cd (Ⅱ) over the rang 3×10－7～1×10－5 mol/L and the limit of detection was 6×10－8 mol/L. Furthermore a possible mechanism was proposed for the reduction of the complex.

Objective A retrospective review of the use of delayed sterna closure (DSC) after pediatric cardiac operations.The purpose of this study is to access the morbidity of DSC and to analyze the risk factors that may predict the need for DSC.Methods Between January 2008 and December 2011,5 546 infants (2 843 males,2 703 females) underwent cardiac operations through midterm sternotomy in Shanghai Children' s Medical Center.Median age was 5 months(1 day to 11 months) and mean weight was 6.1 kg(2.0-12.5 kg).The pathologies included transposition of great artery(TGA),corctation of aorta (CoA),interruption of aortic arch (IAA),pulmonary atresia (PA),truncus arteriosus (Truncus),complete atrioventricular septal defect(CAVSD),total anormalous pulmonary vein connection (TAPVC),double outlet of right ventricle(DORV),tetralogy of Fallot(TOF),and ventricular septal defect(VSD),et al.All hospital records were reviewed and clinical data were studied and analyzed.Results A total of 313 patients had DSC (5.6％).There were 191 males and 122 females.The reasons for DSC are hemodynamic instability in 296,bleeding in 11,and ECMO(or VAD) in 6 patients.Two hundred and fiftyone (80.2％) patients were less than 5 kg,84 (26.8 ％) patients were neonates,and 125 (39.9％) patients aged between one and three months old.The incidences of DSC for these patients were 13.9％,34.4％,and 18.4％ respectively.The diagnosis of complex congenital heart defects had a high risk of DSC.The incidences of DSC for TGA,CoA,IAA,PA,Truncus,CAVSD,TAPVC,and DORV were 28.8％,17.8％,43.1％,9.0％,30.4％,6.5％,and 10.8％ respectively.The DSC patients had longer duration of CPB time(147 min versus 72 min) and clamping time(81 min versus 40 min).In 282 patients the sternums were closed 1-11 days after the initial operation.In 3 cases the trial of closure failed for the first time and succeeded a second time until several days later.Fouty-six patients died ultimately including 15 patients died after the closure of sternum with a total mortality of 14.7 ％.Surgical site infection occurred in 17 patients (5.4％),and surgical intervention were needed in 4 severe cases(1.3％).Conclusion Neonates,an age less than 3 months,weight less than 5 kg,long CPB time and clamping time,and the diagnosis of complex congenital heart defects were risk factors of the need for delayed sterna closure after pediatric cardiac operations.

Objective To studiy the surgical outcomes of children with congenital aortic stenosis (AS),and summarized the experience of surgical procedures.Methods From February 2006 to November 2011,a total of 49 consecutive children with AS underwent surgical treatments.Twenty-nine patients were male and 20 patients were female.The median age was 17 months (1 month to 14 years),and median weight was 15.6 kg (3.2-47.0 kg).Peak AS gradients was (74.9 ±20.4)mmHg (45-123 mm Hg) before surgery.Fourteen patients had isolated congenital AS,4 had combined moderate-to-severe aortic insufficiency (AI).Thirty-Three patients had associated cardiac anomalies,including ventricular septal defect,atrial septal defect,patent ductus ateriosus,coarctation of aorta,subaortic stenosis,and supravalvular mitral stenosis.Thirty-one patients underwent aortic valvotomy,9 valvuloplasty,2 Aortic valve replacement (AVR),1 Ross procedure,2 Ross-Konno procedure,and 4 Konno/AVR.Median follow-up was 20 months (2-55 months).Clinical and echocardiographic follow-up data were analyzed.Results There was 1 postoperative death who died of heart failure due to severe mitral valve insuffciency.Latest follow-up data showed that the survivals performed in satisfactory cardiac function.Left ventricular ejection fraction (LVEF)was 0.69 ±0.10,and fraction shortening (FS) was 0.38 ±0.09.Peak AS gradients decreased significantly after surgery to (38.6 ± 15.8) mm Hg (20-73 mm Hg),P ＜ 0.001.One patient needed reintervention because of severe recurrence of adhesion in the commissure 3 months after the previous surgery.Totally 31 patients underwent simple valvotomy procedure.Postoperative AI was none or trace in 5,mild in 20,and moderate in 6.Two surgical techniques were used to repair the aortic valve according to the anatomy of the valve and the cause of insufficiency,including commissuroplasty in 6 and pericarial casp extension in 3.Nine patients underwent valvuloplasty procedure,post-operative AI was none or trace in 3,mild in 5,and moderate in 1.We put more attention to the 7 patients who had moderate AI valvotomy or valvuloplasty,and the latest follow-up showed that these patients were in good condition and there was no deterioration the degree of AI.Conclusion Long-term outcomes show that aortic valvotomy and valvuloplasty are reliable and effective approaches for congenital AS in children.When moderate-to-severe AI exists,other procedures such as Ross,Ross-Konno,AVR,or Konno/AVR are preferred.

Objective To investigate the antibacterial activity of Schisandra to Acinetobacter baumannii including metallo-β-lac-tamase(MBL)-producing and non-MBL-producing stains in vitro.Methods 75 strains of Acinetobacter baumannii were preliminary screened for clinical isolates of MBL-producing strains,to which confirmatory tests of MBL producing were performed.Drug sensi-tivities of the Acinetobacter baumannii to 14 antibacterial drugs were tested.In vitro antibacterial tests was adopted to determine the MIC of schisandra to 75 strains of Acinetobacter baumannii(including MBL and non-MBL-producing Acinetobacter baumannii).Re-sults MBL confirmatory test showed that among the 50 strains selected 38 strains were positive accounted for 76% (38/50).Con-clusion Schisandra has some antibacterial effect on Acinetobacter baumannii especially MBL-producing Acinetobacter baumannii, and can be combined with western medicine in the treatment of Acinetobacter baumannii infection.

Abstract Socioeconomic status is an important factor affecting all-cause mortality. Income, education and occupation alone or in combination have been employed as a measure of socioeconomic status; however, the study results vary in measures. Material mechanism, lifestyle mechanism, psychological mechanism and community neighborhood mechanism have been accepted as the main intermediate mechanisms for the impact of socioeconomic status on all-cause mortality; however, the contribution of these mechanisms remains controversial. Based on the international and national publications pertaining to the association between socioeconomic status and all-cause mortality from 2012 to 2021, this review summarizes the relationship between socioeconomic status and all-cause mortality in different metrics and the intermediate mechanism of the impact of socioeconomic status on all-cause mortality, so as to provide insights for further studies.

Objective To optimize the pre-treatment method before detecting Helicobacter pylori ( H.pylori ) by matrix-assisted laser desorption ionization/time-of-flight mass spectrometry ( MALDI-TOF MS) and evaluate the ability of the Superspectra by MALDI-TOF MS for identifying clinical isolated H.pylori strains.Methods H.pylori were isolated from 469 biopsy samples of gastric mucosa collected from January 2015 to July 2016 in Huadong Hospital affiliated to Fudan University , 16 s rRNA sequencing were then performed to validate the strains.Then 91 isolated H.pylori strains were used for the subsequent MALDI-TOF analysis.The effect of pre-treatment of 50%isopropanol, formic acid and acetonitrile (1∶1), 70%formic acid were compared before H.pylori detecting by MALDI-TOF MS.40 out of 91 clinical H.pylori strains were detected by MALDI-TOF MS and the spectra were randomly assigned to 4 groups including 5, 10, 20, 30 spectra, each group had 3 repeats.Then 4 groups with different amount of spectra were used for creating Superspectra with SARAMIS Premium software , respectively.The remaining 51 H.pylori strains including 306 spectra were used for validating the identification rate of the Superspectra.Results With the use of 70%formic acid, the greater number of ion signals and higher relative intensity of the main peaks were observed than other pre-treatment reagents.The identification rate of Superspectra created by 30 strains group was the highest ( 90.2%).Among the 306 spectra, 46.1% of them achieved highly reliable identification , 22.2% achieved lower degree of reliable identification , and 31.7% of them achieved “no identification”.Conclusions The study optimized the pre-treatment method before H.pylori detecting by MALDI-TOF MS.The Superspectra was created with the good ability to rapidly identify clinical isolated H.pylori strains.

Aim To establish a simple, rapid and accurate electroanalytical method for water soluble porphyrin meso-tetrakis-(4-sulfonatophenyl) porphyrin (TPPS4);to clarify the reaction between water soluble porphyrins and bovine serum albumin (BSA);and to determine the interaction of TPPS4 with BSA in the absence of presence of cyclodextrins (CDs) , separately. Methods Three methods including LSV,UV spectroscopy and fluorescence spectroscopy bad been employed to the relevant experiments. The way of employing three methods at the same time could make the experiment results more reliable. Results In the supporting electrolyte of NaH2 PO4-Na2 HPO4 ( pH 7. 18 ), a sensitive reduction peak of TPPS4 was found by linear sweep voltammetry (LSV), the peak potential (Ep) was-0. 70 V (vs SCE). The relationship between the second derivative peak of LSV (ip") and the concentration of TPPS4 was linear from 1.0 × 10-7mol·L-1 to 1.0 × 10-5mol· L-1,the square of correlation coefficients (r2) were 0. 998 3 and 0. 999 3, respectively. The relative standard deviation (RSD) was 0. 56% ( n = 5 ). The mean recovery of TPPS4 was 99.59％. In NH4C1-NH3· H2O buffers (pH 9.05), it was proved that BSA and TPPS4 could interact with each other and form 1:1 TPPS4-BSA supramolecular system. Moreover, the interaction between TPPS4 and BSA had been investigated by adding cyclodextrins (CDs). The interaction of TPPS4 with BSA was facilitated both by hydroxypropyl-β-CD (HP-3-CD) and sulforbutylether-β-CD (SBE-3-CD). Conclusion An electroanalytical method for TPPS4 has been established by LSV. The porphyrin drugs included by CDs could react with protein existing inside the human body easier. The consequences of this article also show that CDs will play important role in controlling and releasing the porphyrin drugs.

Objective To review and summarize the experiences of mitral valve replacement in the children aged less than five years.Methods Twelve patients with moderate to severe mitral valve regurgitation (MR) or/and severe mitral valve stenosis (MS) were retrospectively study from January 2008 to December 2011,all of them suffered from severe heart failure and underwent mechanical mitral valve replacement.There were 9 males and 3 females.They aged from 4 to 58 months [mean (26.2 ± 18.1) months] and weighted from 5.6 to 13.0 kg [mean (9.6 ± 3.8) kg].Three patients underwent unsuccessful mitral valve repair before mitral valve replacement.17 to 23 mm aortic bileaflet mechanical prosthesis were reverse directional implanted in nine patients and 25 to 27 mm mitral bileaflet mechanical prosthesis were implanted in three patients.Results One patient died,the operative mortality rate was 8.3％.2 patients were complicated by cardiac arrhythmia and 2 patients complicated by mild hemolysis,all recovered after symptomatic treatment.The heart function of servived 11 patients improved significantly,none of them were complicated by haemorrhage or thromboembolic.Conclusion Severe mitral valve lesion injure heart function significantly for the young children and timely surgical intervention is the only option.Mitral valve replacement is the ultimate option for the patients failed in mitral valve annuloplasty.The introduction of aortic bileaflet mechanical prosthesis which smaller size is available and reverse directional implantation resolve the difficulty of prosthesis-patient mismatch essentially,most children with a small prosthesis has to redo mitral valve replacement with a larger size prosthesis.The compliance of permanent anticoagulation of young children is favourable and more intensively follow-up is essential to avoid the incidence of bleeding and thromboembolic.

Objective To explore risk factors of cardiac surgery in neonates with low body weight.Methods Retrospective analysis was made in neonates weighing less than 3 kg at surgery(n =192;group 1) and 3 to 6 kg(n =517;group 2),who had undergone open cardiac repairs from January 2006 to December 2015 at our institution.Patients were grouped according to the primary procedure performed and analyzed according to their weight at the time of surgical intervention.Patients were also analyzed according to preoperative risk scores.Univariate versus multivariate risk analysis was performed.Results Hospital early mortality in group 1 was 25.0％ (n =48) versus 14.5 ％ (n =75) in group 2 (P =0.001).Compared with group 2,neonates in group 1 had a significantly higher mortality for simple arterial switch procedure.Lower body weight remained strongly associated with mortality risk after stratifying the population by preoperative risk scores category levels 2.Within group 1,age,weight at surgery,preoperative risk score and type of procedure were not associated with significant differences in early mortality.Cardio-pulmonary bypass time,aortic cross-clamp time and the presence of a surgical complication were independent risk factors for early mortality in group 1.Conclusion Among neonates weighing less than 3.0kg who underwent open cardiac surgery,perioperative hemodynamic status,reflected by bypass time,cross-clamp time,and surgical complications,strongly influenced early mortality.In contrast,low body weight itself was not associated with early mortality.

Background and purpose:Epithelial ovarian cancer has the highest mortality rate of gynecologic cancers and overall survival rates have improved little in the last 20 to 30 years. CXXC ifnger protein 5 (CXXC5) plays an important role in AML (acute myeloid leukemia) and MDS (myelodysplasia). However, little is known about its clinical signiifcance and biological function in epithelial ovarian cancer. This study aimed to investigate the expression of the CXXC5 in ovarian cancer and the effect of the CXXC5 on ES-2 cell proliferation. Methods:①The alteration of CXXC5 in cancer genomics data of TCGA (Cancer Genome Atlas) was analyzed.②The CXXC5 protein in the tissue chips was detected containing 37 benign ovarian cyst and 173 malignant tumor samples. The relationship between the expression of the CXXC5 with the clinicopathological features of patients with ovarian cancer was analyzed by SPSS software;③The cells with the highest CXXC5 expression quantity from 5 ovarian cancer cells were selected by re-al-time quantitative PCR (qRT-PCR) and Western blot.④ES-2 cells with shRNA stable transfection were construted us-ing the strategy of lentivirus infection and analyzed cell proliferation by cell counting kit-8(CCK8). Results:①Through the TCGA database, CXXC5 ampliifcation was found in 7 of 563 cases.②The CXXC5 expression in ovarian malignant carcinoma (39.3%) was higher than that in benign ovarian cyst (13.5%, P=0.003), the histologic type was highly asso-ciated with CXXC5 (43%in serous, 22.9%in mucinous, 23.5%in endometrioid, 67%in clear cell, P=0.014) and there was a signiifcant correlation between CXXC5 and lymph node metastasis (positive vs negative, P=0.022).③The ES-2 cells with shRNA stable transfection had a growth disadvantage (P<0.05). Conclusion:The CXXC5 gene might have an advantage in proliferation of epithelial ovarian carcinoma and be expected to become the biomarker of poor prognosis.