Objective To investigate the changes of cardiac function at pre -and post -treatment in preterm infants with patent ductus arteriosus (PDA)in order to guide drug treatment.Methods Totally 84 preterm infants with PDA admitted to Neonatal Intensive Care Unit of Xuzhou Hospital Affiliated to Medical College of Southeast University from July 201 2 to June 201 4 were divided into 4 groups according to treatment drug:Ibuprofen group (27 cases),Indo-methacin group (24 cases),control group (1 1 cases),and Paracetamol group (22 cases).Patients were also divided into symptomatic PDA group (38 cases)and asymptomatic PDA group (46 cases)according to severity;PDA closed group (69 cases)and PDA unclosed group (1 5 cases)according to sequel.The level of plasma brain natriuretic pep-tide (BNP),cardiac troponin I (cTnI),correct QT intervals dispersion (QTcd)were monitored pre -and post -treat-ment.Data were analyzed by using SPSS 1 9.0 software.Results Three cardiac markers at post -treatment were of no significant difference among 4 treatment drugs.The changes of the cTnI and QTcd at pre -and post -treatment were of no significance.The level of BNP in symptomatic PDA group was significantly higher than that in asymptomatic PDA group at pre -treatment [(378 ±94)ng/L vs (1 47 ±75)ng/L,t =2.584,P =0.01 4].In the symptomatic PDA group,the level of BNP at post -treatment [(1 82 ±81 )ng/L]was significantly decreased than that at per -treatment (t =2.741 ,P =0.009).In the asymptomatic PDA group,there was no significant difference between the pre - and post -treatment [(1 21 ±61 )ng/L]in the level of BNP (t =1 .254,P =0.207).There was no significant difference in the level of BNP at per -treatment between PDA closed group and PDA unclosed group [(274 ±91 )ng/L vs (289 ± 87)ng/L,t =-0.874,P =0.391 ].In PDA closed group,the level of BNP at post -treatment [(1 21 ±74)ng/L] was significantly decreased compared with that at per -treatment (t =3.580,P =0.000).In PDA unclosed group, there was no significant difference between the pre - and post -treatment [(245 ±74)ng/L]in the level of BNP (t =0.854,P =0.392).Conclusion Early medication intervention for symptomatic PDA of preterm infants is benefi-cial for the closure of PDA and for attenuating negative effects on cardiac function of PDA.

Objective To study the effect of three different modes of non-invasive positive pressure ventilation on cardiac indices of premature infants with respiratory distress syndrome (RDS).Method From January 2014 to October 2015,preterm infants who had RDS received intubation-pulmonary surfactantextubation in the neonatal intensive care unit of the Hospital were randomly assigned (by random number table) to three groups based on the primary mode of ventilation:nasal continuous positive airway pressure (NCPAP),bi-level positive airway pressure (BiPAP),and synchronized bi-level positive airway pressure (SBiPAP).The mean airway pressure (MAP) were about 6 cmH2O in the three groups.The level of plasma B-type natriuretic peptide (BNP),cardiac troponin Ⅰ (cTnI),and correct QT intervals dispersion (QTcd) were monitored before and 42-54 h after non-invasive ventilation.Result There were 173 cases in our study,59 of which in NCPAP group,56 in BiPAP group,and 58 in SBiPAP group.The plasma BNP level at 42-54 h after non-invasive ventilation in the three groups were all higher than that before non-invasive ventilation [NCPAP group:(247.9 ± 137.9) ng/L vs.(182.5 ± 1 10.7) ng/L,P =0.007;BiPAP group:(258.5 ± 131.2) ng/L vs.(182.6 ± 105.0) ng/L,P ＜ 0.001;and SBiPAP group:(260.9 ± 159.7) ng/L vs.(177.5 ± 101.5) ng/L,P =0.002].After 42-54 h non-invasive ventilation,there were no significant changes of plasma cTnI level and QTcd in all the three groups (all P ＞ 0.05).The level of plasma BNP,cTnI,and QTcd among the three groups before and after 42-54 h non-invasive ventilation all showed no significant differences statistically (all P ＞ 0.05).Conclusion Longer duration (42-54 h) of non-invasive positive pressure ventilation (MAP:6 cmH2O) in preterm infants with RDS may lead to increased plasma BNP level,and may affect their cardiac function.However,it may not lead to serious myocardial damage and abnormality of ventricular repolarization.There were no significant differences in cardiac indices of premature infant with RDS among NCPAP,BiPAP,and SBiPAP group with the same MAP.

Objective To reveal the self-management status of patients with hypertension in community, and to analyze the influencing factors of self-management behavior so as to provide theoretical basis for the formation and maintenance of self-management. Methods With the method of stratified random cluster sampling, 559 patients with hypertension were selected from twelve communities in six urban districts of Wuhan completed the questionnaire survey to analyze the demographic characteristics, executive condition of self-management behavior and related psychological behavior with hypertension patients. Results The average age was (61.2 ± 8.4) years. The rate of measuring blood pressure regularly was 38.39%, rate of regular medication was 63.83%, rate of low salt diet was 37.72%, and the rate of regular exercise was 50.45%. The score of self-management was 0.60 ± 0.21. Self efficacy was the influencing factor of self-management score (β=0.042 1,P<0.01). Conclusion Self assessed efficacy is closely related to self-management. Intervention should be guided by psychological behavior theory, and emphasized on psychological aspect.

Objective To investigate the predictive values of Kwon's score,Chumbler's score,Age,Atrial Fibrillation,Dysphagia,Sex,Stroke Severity (A2DS2) score,the Preventive ANtibacterial THERapy in Acute Ischemic Stroke (PANTHERIS) score,Acute Ischemic Stroke-Associated Pneumonia Score (AIS-APS),and prestroke Independence,Sex,Age,NIHSS (ISAN) score for stroke-associated pneumonia (SAP) in patients with acute ischemic stroke.Methods The patients with acute ischemic stroke were enrolled retrospectively.They were grouped according to whether to be complicated with SAP or not.The demography and baseline characteristics were compared between the SAP group and the non-SAP group.Multivariate logistic regression analysis was used to identify the independent risk factors for SAP.Receiver operating characteristic (ROC) curves were used to compare the predictive values of the 6 kinds of scores for SAP.Results A total of 1 427 patients with acute ischemic stroke were enrolled.Three hundred ninety-five patients (27.7％) complicated with SAP within 7 d after onset.There were significant differences in age,gender,past history (pneumonia,atrial fibrillation,smoking),laboratory tests (white blood cell count ＞11 × 109/L,baseline blood glucose ≥ 11.1 mmol/L),Oxfordshire Community Stroke Project (OCSP) classification,falling at the time of onset,dysphagia,mechanical ventilation and the modifiel Rankin Scale (mRS) score before onset,baseline Glasgow Coma Scale (GCS) score,baseline National Institutes of Health Stroke Scale (NIHSS) score and 6 scores between the SAP group and the non-SAP group (all P ＜ 0.05).Multivariate logistic regression analysis showed that age (odds ratio [OR] 1.034,95％ confidence interval [CI] 1.019-1.049;P=0.001),white cell count ＞ 11 × 109/L (OR 4.386,95％CI 2.763-6.905;P=0.001),baseline blood glucose ≥ 11.1 mmol/L (OR 1.933,95 ％ CI 1.305-2.864;P =0.001),dysphagia (OR 7.839,95％ CI 4.892-12.563;P =0.001),baseline NIHSS (OR 1.120,95％ CI 1.077-1.165;P =0.001),and baseline GCS score (OR 1.132,95％ CI 1.019-1.257;P =0.021) were the independent risk factors for SAP.The areas under the ROC curves of SAP predicted by the Chumbler's,AIS-APS,A2DS2,ISAN,Kwon's and PANTHERIS scores were 0.830 (95％ CI 0.805-0.855),0.827 (95％ CI 0.802-0.852),0.818 (95％ CI 0.792-0.845),0.788 (95％ CI 0.762-0.814),0.774 (95％CI 0.774-0.803),and 0.727 (95％ CI 0.695-0.758),respectively.There were no significant differences in the area under ROC curves of Chumbler's,A2DS2 and AIS-APS scores between the pairwise comparisons.There were significant differences in the area under ROC curves of the Chumbler's,A2DS2,AIS-APS and ISAN scores between the pairwise comparisons (AIS-APS compared with ISAN:P =0.001;the rests P ＜ 0.001).Conclusions The accuracies of predicting SAP with the Chumbler's,AIS-APS and A2DS2 scores are superior to the ISAN,Known's and PANTHERIS scores,and have higher clinical application value.

Objective:To assess the effects of noninvasive positive pressure ventilation on premature infants' cardiac function using Tei index combined with corrected QT dispersion (QTcd) and B- type natriuretic peptide (BNP).Methods:This prospective study involved premature infants from 28 to 32 weeks of gestational age diagnosed with respiratory distress syndrome (RDS) and treated with noninvasive positive pressure ventilation in the Neonatal Intensive Care Unit of Xuzhou Central Hospital from December 2017 to December 2020. According to the mean airway pressure (MAP) during noninvasive positive pressure ventilation, the patients were divided into the low-pressure group (≤6 cmH 2O, 1 cmH 2O=0.098 kPa), medium-pressure group (>6-<9 cmH 2O), and high-pressure group (≥9 cmH 2O). The right ventricular Tei index, QTcd, and blood BNP were monitored during the first 2 h of noninvasive positive pressure ventilation and 12 h after continuous ventilation with stable MAP. Chi-square test, one-way analysis of variance, paired t-test, and Pearson product-moment correlation coefficient were adopted for statistical analysis. Results:Totally 178 premature infants were enrolled, including 75 in the low-pressure, 62 in the medium-pressure, and 41 in the high-pressure group. After continuous ventilation with stable MAP for 12 h, the right ventricle Tei index and QTcd in the high-pressure group were higher than those in the medium- and low-pressure group [Tei index: (0.38±0.05) vs (0.33±0.04) and (0.33±0.04), F=29.18; QTcd: (27.6±4.2) vs (22.8±4.4) and (22.2±4.2) ms, F=23.26, all P<0.001], and the comparison between the medium- and the low-pressure group did not differ significantly. No significant difference was observed in blood BNP levels among the three groups ( F=1.33, P=0.267). The right ventricle Tei index and QTcd increased in the high-pressure group after continuous ventilation with stable MAP for 12 h as compared with those within the first 2 h of noninvasive positive pressure ventilation [Tei index: (0.38±0.05) vs (0.34±0.04), t=－6.61; QTcd: (27.6±4.2) vs (23.4±4.4) ms, t=－5.06, all P<0.001]. However, the figures did not change significantly in the medium- or the low-pressure group (all P>0.05). There were no significant changes in blood BNP in the three groups (all P>0.05). The right ventricle Tei index and QTcd were moderately positively correlated with MAP ( r=0.56 and 0.50, both P<0.001). Conclusions:For the premature infants with RDS, noninvasive positive pressure ventilation has no significant effect on the cardiac function when MAP is less than 9 cmH 2O, but would have a certain effect on the right ventricular function when used at higher pressure (MAP≥9 cmH 2O) and for longer time (>12 h).

ObjectiveTo determine the association between air pollutants （PM_2.5， PM₁₀， SO₂， NO₂） and death from respiratory diseases in Wuhan. MethodsDaily air pollutants， meteorological data and mortality from respiratory disease between 2014 and 2019 were collected for a descriptive analysis. A time series semi-parametric generalized additive model （GAM） was used to determine the exposure-effect relationship between atmospheric pollutants and daily mortality from respiratory diseases，and the excess risk （ER） was used to quantify the effects of air pollutants on death from respiratory diseases. ResultsThere was significant effect of PM_2.5， PM₁₀， SO₂ and NO₂ on respiratory diseases mortality. In the period with strongest effect， the ER of death from respiratory diseases were 2.803%（95%CI：2.151%‒3.460%）， 1.878%（95%CI：1.477%‒2.281%）， 10.210%（95%CI：7.922%‒12.549%）， 4.564%（95%CI：3.530%‒5.608%）， along with an incremental 10 μg·m^-3 of PM_2.5，PM₁₀，SO₂ and NO₂， respectively. Furthermore， females were more sensitive to PM_2.5， SO₂ and NO₂， while males were more sensitive to PM₁₀. Residents aged less than 65 years were more sensitive to PM_2.5 and NO₂， and those older than 65 years were more sensitive to PM₁₀ and SO₂. ConclusionAir pollutants （PM_2.5， PM₁₀， SO₂， and NO₂） in Wuhan are associated with the death from respiratory diseases. Therefore， at-risk groups should be considered for formulating local policies against air pollution.

Objective: The incidence and mortality of gallbladder cancer from Chinese cancer registries in 2014 were analyzed to describe the prevalence of gallbladder cancer in China. Methods: Incidence and mortality data of gallbladder cancer in 2014 derived from registration data in 2017, collected by the National Central Cancer Registry (NCCR). Qualified data from 339 cancer registries were calculated after evaluating. According to the national population data of 2014, the gallbladder cancer incidence and mortality of China in 2014 were stratified by the area, gender and age.The age composition of standard population of Chinese census in 2000 and Segi′s population were used for age-standardizes incidence and mortality in China and worldwide. Results: 339 cancer registries cover a total of 288 243 347 population including 146 203 891 males and 142 039 456 females (144 061 915 in urban and 144 181 432 in rural areas). The mortality to incidence ratio of gallbladder cancer was 0.74. The morphologically verified cases (MV%) and death certificate-only cases (DCO%) were 48.38% and 2.66%, respectively. Unclear diagnosis cases (UB%) was 0.48%. The crude incidence of gallbladder cancer in China in 2014 was 3.82/100 000, which accounted for 1.37% of new cancer cases (4.48/100 000 in urban areas and 3.01/100 000 in rural areas, 3.59/100 000 for male and 4.05/100 000 for female). Age-standardized incidence rates by Chinese standard population (ASR China) and world standard population (ASR world) were 2.38/100 000 and 2.37/100 000, respectively, and the cumulative incidence rate (0-74 age years old) was 0.27%.Besides, the crude mortality of gallbladder cancer was 2.86/100 000 (3.47/100 000 in urban areas and 2.12/100 000 in rural areas, 2.59/100 000 for male and 3.14/100 000 for female). Age-standardized mortality rates by ASR China and ASR world were 1.72/100 000 and 1.71/100 000, with a cumulative mortality rate (0-74 age years old) of 0.19%. Conclusion The incidence and mortality of gallbladder cancer were significantly different between the city and country, while not obviously different between the female and male.

Objective To establish the method for extracting exogenous short DNA fragments of Schistosoma japonicum from urine samples, and to evaluate the efficiency of this method for extraction from urine samples treated with various methods. Methods The S. japonicum SjG28 gene fragment was selected as a target sequence, and the 81 bp short DNA fragment was amplified on the target sequence using PCR assay. Following characterization using sequencing, the short DNA fragment was added into the urine samples as an exogenous short DNA fragment. Primers and probes were designed with SjG28 as a target gene, to establish the real-time fluorescent quantitative PCR (qPCR) assay. The sensitivity of this qPCR assay was evaluated with exogenous short DNA fragments that were diluted at a 1:10 dilution ratio as the DNA template, and the specificity of the qPCR assay was evaluated with the genomic DNA of S. mansoni, S. haematobium, Babesia, Ancyiostoma duodenaie, Cionorchis sinensis, and Paragonimus westermani as DNA templates. Exogenous short DNA fragments were added into artificial and healthy volunteers’ urine samples, followed by pH adjustment, centrifugation and concentration, and the efficiency of extracting exogenous short DNA fragments from urine samples was compared with the QIAmp Viral RNA Mini Kit (Qiagen kit) and BIOG cfDNA easy kit (BIOG kit). Results An 81 bp small DNA fragment of S. japonicum was successfully prepared, and the lowest detection limit of the established qPCR assay was 100 copies/μL of the 81 bp small DNA fragment of S. japonicum. If the genomic DNA of S. japonicum, S. mansoni, S. haematobium, Babesia, A. duodenaie, C. sinensis, and P. westermani served as DNA templates, the qPCR assay only detected fluorescent signals with S. japonicum genomic DNA as the DNA template. If the pH values of artificial urine samples were adjusted to 5, 6, 7 and 8, the recovery rates were (49.12 ± 2.09)%, (84.52 ± 4.96)%, (89.38 ± 3.32)% and (87.82 ± 3.90)% for extracting the exogenous short DNA fragment of S. japonicum with the Qiagen kit, and were (2.30 ± 0.07)%, (8.11% ± 0.26)%, (13.35 ± 0.61)% and (20.82 ± 0.68)% with the BIOG kit, respectively (t = 38.702, 26.955, 39.042 and 29.571; all P values < 0.01). If the Qiagen kit was used for extracting the exogenous short DNA fragment from artificial urine samples, the lowest recovery rate was seen from urine samples with a pH value of 5 (all P values < 0.05), and there were no significant differences in the recovery rate from urine samples with pH values of 6, 7 and 8 (all P values > 0.05). Following centrifugation of artificial [(64.30 ± 1.00)% vs. (58.87 ± 0.26)%; t = 12.033, P < 0.05] and healthy volunteers’ urine samples [(31 165 ± 1 017) copies/μL vs. (28 471 ± 818) copies/μL; t = 23.164, P < 0.05]. In addition, concentration of artificial urine samples with the 10 kDa Centrifugal Filter and concentration of healthy volunteers’ urine samples with the 100 kDa Centrifugal Filter were both effective to increase the recovery of the Qiagen kit for extracting the exogenous short DNA fragment of S. japonicum (both P values < 0.01). Conclusions A method for extracting exogenous short DNA fragments of S. japonicum from urine samples has been successfully established, and the Qiagen kit has a high extraction efficiency. Adjustment of urine pH to 6 to 8 and concentration of healthy volunteers’ urine samples with the 100 kDa Centrifugal Filter are both effective to increase the efficiency of extracting exogenous short DNA fragments of S. japonicum.