Objective To determine the therapeutic efficacy of curcumine on inflammatory bowel disease(IBD)and its underlying mechanisms.Methods The rat ulcerative colitis model was developed by using 30 g/L dextran sulfate sodium.Twenty-four young rats were divided into 4 groups:normal group,model group,curcumin 100 mg/kg group(curcumin 100 group),and curcumin 300 mg/kg group(curcumin 300 group).Curcumin was given through gastric gavage once a day for 7 days.General condition,disease activity index(DAI)and histopathological score(HPS)were evaluated.The proportions of CD4+ CD25+ Foxp3+ regulatory T cells(Treg)and CD4+ IL-17+ helper T lymphocyte 17(Th17)in CD4+ T cells in rats,and spleen cells were calculated by using flow cytometry.Immunohistochemical method was performed to determine the level of SOCS3 in colon tissues.Results After curcumin administered through gastric gavage for 5 days,compared with the DAI in the model group[(7.50±0.32)scores],HPS in the curcumin 100 group[(4.00±1.10)scores] and the curcumin 300 group [(5.00±0.89)scores] significantly reduced,and the difference was significant(F=12.469,P<0.05).After curcumin administered through gastric gavage for 7 days,compared with the HPS in the model group[(2.69±0.70)scores],histological score in the curcumin 100 group[(1.94±0.68)scores],the curcumin 300 group [(2.00±0.63)scores] and the normal group[(0.50±0.05)scores] significantly reduced,and the difference was significant(F=33.282,P<0.05).Compared with the model group[(0.015 1±0.000 7)D],the expression of SOCS3 in the curcumin 100 group[(0.002 0±0.000 5)D],the curcumin 300 group [(0.002 6±0.006 0)D] and the normal group[(0.002 2±0.001 0)D] was significantly inhibited(F=382.270,P<0.05),but there was no difference among the former 3 groups(F=0.828,P>0.05).Compared with the model group[(6.5±1.5)％],the propotion of CD4+ CD25+ Foxp3+ Treg cells in CD4+ T cells in the curcumin 100 group[(9.9±1.0)％],the curcumin 300 group [(9.3±0.7)％] and the normal group[(9.6±1.1)％]was obviously upregulated(F=16.635,P<0.05),but there was no difference among the former 3 group(F=1.564,P>0.05).Compared with the model group[(3.5±1.4)％],the propotion of CD4+ IL-17+ Th17 cells in CD4+ T cells in the curcumin 100 group[(2.0±0.9)％],the curcumin 300 group [(1.2±0.6)％] and the normal group[(2.0±0.9)％] was downregulated(F=5.155,P<0.05),but there was no difference among the former 3 group(F=2.073,P>0.05).There was no obvious difference between the curcumin 100 group and the curcumin 300 group in these indicators respectively(all P>0.05).Conclusions Curcumin probably attenuates IBD severity,reduces inflammation and regulates the balance of Treg/Th17 through the inhibition of SOCS3 expression.

Objective To discuss the characteristics,diagnosis,mechanism and the prognosis of dilated cardiomyopathy (DCM) induced by accessory pathway (AP).Methods The clinical,electrophysiological and echocardiographic characteristics in four cases,who were diagnosed as AP-induced DCM in the Department of Pediatric Cardiology of Beijing Anzhen Hospital,Capital Medical University from Mar.2011 to Aug.2012,were analyzed before and after ablation.Results The electrocardiograms of the 4 patients all indicated type B ventricular preexcitation.The locations of the APs were the right-sided anteroseptum and the free wall.Dyschronous contractions between posterior wall of left ventricle and interventricular septum were demonstrated by M-Mode echo.The basal segments of the interventricular septum turned thin and moved similar to an aneurysm,with typical bulging during end-systole,which was observed in all cases by two-dimension echo.Dyschronous left ventricular contraction was shown by speckle tracing technique.All patients received successful radio frequency current ablations.Their physical activities and growth improved greatly in the 4 cases.The echocardiographic data demonstrated that their left ventricular contraction recovered to synchrony shortly after the ablation,left ventricular ejection fraction recovered to normal and left ventricular end diastolic diameter decreased to almost normal gradually during the follow-up.Conclusions Overt right-sided APs localized in anteroseptum or free wall may have adverse effects on ventricular wall motion and left ventricular function.They can even result in DCM.Dyssynchronous ventricular contraction induced by right-sided overt accessory pathway may be the vital mechanism.AP-induced DCM is an indication for ablation with good prognosis.

Objective To study the clinical characteristics and prognosis of children aged 5 or above with stage 3/4 neuroblastoma ( NB).Method Among 180 children with NB admitted from March 2007 to June 2015, 54 were aged 5 or above with stage 3 or 4.The clinical characteristics , therapeutic efficacy and prognosis of above 54 cases were analyzed.Results There were 36 boys and 18 girls with a male to female ratio of 2∶1.The most common of primary site was retroperitoneum (41/54, 75.5%), followed by mediastinum (10/54,18.5%), spine and pelvic cavity (3/545,6%).After treated by average 9 cycles of chemotherapy , 34 cases ( 63%) achieved complete remission ( CR ) , 13 ( 24.1%) achieved partial remission (PR), 5 (9.3%) presented disease progression (DP), and 2 died (3.7%).Patients were followed up for median 30 months ( 8 -99 months ) , 24 cases died and 30 survived with a overall survival (OS) rate of 55.6%.In 30 survival cases, there were 23 cases (76.7%) of event-free survival (EFS) ,and 6 cases (20.0%) of PR and 1 case (3.3%) of DP.There were significant differences in prognosis among patients with different responses to first therapy (χ2 =8.963, P =0.003 ).Among 20 children with stage 4 NB treated by autologous peripheral blood stem cell transplantation ( APBSCT ) , 13 cases died and 7 survived with an average survival time of (73.55 ±8.89)months.Among 29 cases without APBSCT, 11 cases died and 18 survived with an average survival time of(40.19 ±5.52)months.There was no significant difference in survival between APBSCT and no-APBSCT.Conclusion Children aged 5 or above with NB tend to have advanced stage , relapse and long treatment cycle , but the survival still can be improved with the appropriate treatment .

Objective To study on virulence characteristics and multilocus sequence type of Vibrio parahaemolyticus isolated from clinic in Beijing Tongren hospital.Methods Total 152 strains of Vibrio parahaemolyticus isolates were collected from diarrheal patients of outpatients in Beijing Tongren Hospital,Capital Medical University from 2009 to 2011.PCR was used to detect hemolysin gene thermo stable direct themolysin gene (tdh),TDH-related hemolysin gene (trh),type Ⅲ secretion system 2 (T3SS2α,T3SS2β)and systematic functional gene (toxRS/new,orf8) for pandemic 03∶ K6 clone and its derivatives.The genetic features of these strains were determined by multilocus sequence typing (MLST).Results 96％ (146/152) VP harbored tdh gene,2％ (3/152) VP harbored trh gene and 100％ (152/152) VP harbored T3SS2 gene.In this study there were 107 pandemic strains (both tdh and toxRS/new positive and trh negative),38 pathogenic strains (tdh positive and/or trh positive) and 6 nonpathogenic strains (both tdh and trh negative).All nonpathogenic strains harbored systematic functional gene (toxRS/new,orf8).Only one pathogenic strains harbored orf8 gene.One clone harbored all virulence gene.In this study there were 16 sequence types,and ST3 is the pandemic sequence type,including 113 strains,and four new sequence types were found.Conclusions In this study more than 90％ Vibrio haemolyticus harbored tdh gene and ST3 was the pandemic sequence type in Beijing.One can get bacterial pathogenic charateristic and population genetics information by virulence gene testing and MLST.

Objective To establish the rat model of collagen-induced arthritis and study the diagnostic value of MRI for early RA by comparing to pathological changes. Methods Thirty Wistar rats were randomly divided into normal groups and experimental groups.Fifteen rats of the experimental groups were immunized with type Ⅱ collagen and Freund's Adjuvant Incomplete. At the scheduled days, the selected rats of both experimental and normal groups underwent X-ray, 1.5T MR scan plus enhancement and histological analysis. Results Arthritis Index increased on the 14th day after immunization and reached the peak on the 28th day in the experimental group, the positivity of Anti-CⅡ antibody was significantly different from the normal group.The experiemental model was established in 93.33% of all rats. The enhanced MRI showed that 12 (12/15) rats presented with abnormal signs . The sensitivity of MRI was 85.71% and the specificity was 100%. There was no significant correlation could be found between MRI and histological changes X-ray revealed soft tissue swollen in 4 (4/15) rats, which showed that MRI had higher sensitivity in detecting abnormal signs of arthritis than X-ray. Conclusion MRI may be used in the early diagnosis of early RA.

Objective To investigate the spectrum,diagnosis,time of therapy and management of the congeni-tal heart disease(CHD)in patients with Down′s syndrome(DS).Methods A retrospective report was undertaken of 96 cases in children with DS accompanied by CHD in Department of Pediatric Cardiology,Beijing Anzhen Hospital Af-filiated to Capital Medical University.Data were collected and analyzed about their clinical characteristics,and types of cardiovascular abnormalities,and the important laboratory examinations such as echocardiography and catheterization as well as the procedures of diagnosis and treatments were summarized.Then the interventions,complications and prognosis of different patients were estimated.Results (1)Single congenital heart disease was found in 33 cases (34.38%),a-mong which ventricular septal defect was the most common (14 cases,14.58%),followed by atrioventricular septal de-fect and atrial septal defect (equally,7 cases,7.29%).Multi -cardiovascular abnormalities were discovered in 63 ca-ses,and patent ductus arteriosus turned out to be the most common (42 cases,66.67%).(2)Cat-heterization was car-ried out in 18 cases of serious pulmonary arterial hypertension,and 8 cases were proved resistant pulmonary arterial hy-pertension without operation opportunity.The other 8 cases were estimated as high pulmonary arterial hypertension and medical therapy was suggested before reassessment to reduce surgical risks.(3)Operations were undertaken in 61 ca-ses,among which percutaneous interventional occlusion was performed in 7 cases and surgical interventions were per-formed in 54 patients,in which perioperation complications and death were found in 5 cases and 4 cases,respectively. Conclusions Operation interventions are practicable and most cases recovered well with systematic examinations and assessment in patients with DS and cardiovascular malformations.Early diagnosis and timely interventions are highly suggested.Also close attentions should be paid to follow -up and re -estimation after medical therapy.

T,P=0.008; Genotype:P=0.031)of DISC1 gene were significantly associated with schizophrenia.The haplotypes constructed by these two markers were significantly associated with schizophrenia,such as AT(?2=7.065,P=0.008,OR=1.42,95%CI=1.10~1.83)and GA(?2=6.009,P=0.014,OR=0.80,95%CI=0.68~0.96).When the subjects examined with the positive and negative syndrome scale(PANSS),the risk haplotype AT was not significantly correlated with positive,negative,excitement,depression and cognitive impairment factors of PANSS. Conclusion:These findings provide further evidence for DISC1 as a predisposing gene involved in schizophrenia in the Chinese Han Population.However,no positive association is found between DISC1 polymorphisms with schizophrenia clinical symptoms.

Objective To analyze the clinical characteristics of childhood systemic lupus erythematosus (SLE) patients with severe gastrointestinal manifestations,especially cases with acute and severe abdominal pain,so as to improve the recognition of severe and acute gastrointestinal manifestations of SLE during pediatric diagnosis and treatment.Methods Medical records of 119 patients with SLE under the age 16 years old in Peking Union Medical College Hospital from Jan.2010 to Mar.2013 were reviewed and gastrointestinal manifestations were retrospectively analyzed.All patients were diagnosed as SLE according to 1997 American College of Rheumatology (ACR) revised classification criteria.Results Gastrointestinal involvement was recorded in 24 children (20.2％).The median (range) age at the time of initial gastrointestinal manifestations was (13.5 ± 2.0) years (6-15 years).The ratio of female to male was 1.0 ∶ 2.4.And in 4 cases,gastrointestinal manifestations occurred as the initial symptoms.Abdominal pain was the most frequent symptom,present in 13 patients (54.2％),11 cases (45.8％) had nausea and vomiting,4 cases (16.6％) had abdominal distension,and 3 cases (12.5％) had diarrhea.Abnormal liver function was found by lab test in 8 cases,without obvious symptoms or the proofs of any virus infection.Acute and severe abdominal pain was found in 9 cases,of whom 6 patients were diagnosed as intestinal pseudo-obstruction (2 cases with bilateral ureterohydronephrosis),1 case had acute peritonitis with surgery,1 case was diagnosed as protein losing enteropathy and 1 case had acute pancreatitis.Liver impairment also occurred in SLE.All cases got alleviated with the treatment of steroids and immunosuppressive drugs.Significant difference was found in the occurrence of hydroureter and hydronephrosis and albumin concentrations between SLE digestive and non-digestive system involvement children.However,there was no remarkable difference in the erythrocyte sedimentation rate,or the involvement of kidney and blood system and central nervous system between the 2 groups.Conclusions SLE is a common autoimmune disease in children involving multiple systems.The severity of gastrointestinal involvement is underestimated.Gastrointestinal manifestations can be initial symptoms of SLE.Intestinal pseudo-obstruction,protein losing enteropathy,and acute pancreatitis are uncommon but severe gastrointestinal manifestations of SLE patients should be fully recognized.It is vital for pediatric physicians to make early diagnosis and begin timely treatment on SLE with Corticosteroid and cyclophosphamide.

Objective:To discuss the effect of remnant cholesterol (RC) levels on carotid intima thickness (CIT) in patients with type 2 diabetes mellitus (T2DM) by ultra-high frequency ultrasound.Methods:A total of 60 patients with T2DM who received treatment in Henan Provincial People′s Hospital from May 2021 to July 2022 were prospectively recruited, and they were divided into a higher RC group (31 cases) and a lower RC group (29 cases) according to the RC levels. Thirty-one age, sex and body mass index(BMI)-matched healthy volunteers were selected as control group. Carotid CIT, carotid media thickness(CMT) and intima-media thickness(CIMT) were measured by 24 MHz ultra-high frequency ultrasound probe. The difference of general clinical data, laboratory indicators and CIMT, CIT, CMT among the three groups were compared, and the influencing factors of CIT in T2DM patients were explored by multivariate regression analysis.Results:①There were no statistical significances in gender, age, BMI, high-density lipoprotein cholesterol (HDL-C) and CMT among the three groups (all P>0.05). There were no statistical significances in duration of diabetes, fasting blood-glucose and glycated haemoglobin between the two subgroups of T2DM (all P>0.05). ②Compared with the control group, CIMT and CIT were thicker in the T2DM group (both P<0.05). ③CIT was thicker in the higher RC group than in the lower RC group ( P<0.05), while the difference of CIMT was not statistically significant the two groups ( P>0.05). ④Multivariate regression analysis showed that RC was the influence factor of CIT in patients with T2DM(β=0.610, P=0.005). Conclusions:CIT is significantly thicker in T2DM patients with higher RC than in those with lower RC, and RC is the influence factor of CIT, which suggests that more attention should be paid to the detection of RC in T2DM patients.

Objective: To analyze the ratio of pulmonary valve ring to aortic valve ring (GA ratio), and to explore the application value of GA ratio in predicting the need of transannular patch in the radical operation of children with tetralogy of Fallot (TOF). Methods: A retrospective analysis was performed in 355 children (182 males and 173 females) with TOF and underwent radical operation in the Pediatric Cardiac Center of Beijing Anzhen Hospital Affiliated to Capital Medical University from January 2016 to December 2017.They were divided into transannular patch group and non-transannular patch group.The values of pulmonary valve ring and aortic valve ring in two groups were collected, and the Z-score of pulmonary artery and GA ratio were calculated respectively for statistical analysis. Results: Among the 355 patients, 156 children (43.9%) required a transannular patch, and 199 patients (56.1%) did not receive transannular patch.The GA ratio and the Z-score of of pulmonary artery in the transannular patch group were lower than those in the non-transannular patch group [0.45±0.12 vs. 0.54±0.15, (-1.75±0.98) scores vs.(-0.86±1.39) scores], and the differences were statistically significant (t=5.29, 6.32, all P<0.01). Receiver operating characteristic curve analysis showed that in the case of the Z-score of pulmonary artery of -2 for the children received transannular patch, the area under the curve (AUC) was 0.702 (95%CI: 0.64-0.76), sensitivity was 69%, and specificity was 83%; in the case of the GA ratio of 0.58 for the children received transannular patch, the AUC was 0.712 (95%CI: 0.66-0.77), sensitivity was 70%, and specificity was 87%. Conclusions The GA ratio is a simple and effective predictor of transannular patch in the radical operation of TOF and can be applied in clinical practice.