Objective: To observe the effect of ω-3 fish oil emulsion on the experimental severe acute pancreatitis(SAP)through the morphologic alteration of pancreas,the level of serum amylase(AMS)and the functions of liver and kidney,and explore its possible mechanism. Methods: Rat model of SAP was produced by injecting 5% Sodium Cholate(1 ml/kg)into the biliopancreatic duct.Male Sprague-Dawley rats were randomly divided into 4 groups: normal group(n=6),fish oil emulsion treatment group(FOG,n=18),soybean oil emulsion treatment group(SOG,n=18) and normal sodium treatment group(NSG,n=18).Then fish oil emulsion(FO,10 ml/kg);soybean oil emulsion(SO,10 ml/kg)and normal sodium(NS,10 ml/kg)were intravenously injected respectively 120 minutes.The pancreatitis were confirmed by levels of serum AMS and histopathologic score.ALT,AST,BUN and Cr were tested 24 hours after the treatments.Expressions of IL-1β and IL-10 were tested by ELISA.The activated NF-kappa B was examined in the pancreases. Results: Lower level of serum AMS(P<0.05)and lower histopathology score(P<0.05) appeared in FOG.Compared with NS,FO decreased the levels of serum ALT and BUN significantly (P<0.05).FO significantly attenuated the expression of IL-1β (P<0.05).FO downregulated the activity of NF-kappa B efficiently.Conclusions: By down-regulating the levels of IL-1β together with up-regulating the level of IL-10,FO reduces inflammatory damage at the beginning of AP.

Objective:To explore the curative effect of acupuncture combined with huanglian wendan decoction on the mild cognitive impairment after stroke.Methods:100 patients with mild cognitive impairment after stroke were enrolled in our hospital from June 2013 to August 2016 and randomly divided into two groups.The control group (n=50) accepted nimodipine,and the study group (n=50)accepted huanglian wendan decoction combined with acupuncture treatment based on the control group.The MMSE and MSSS scores were evaluated and compared,and the improvement of cognitive dysfunction and nervous dysfunction,quality of life were compared and analyzed.Results:After treatment,the MMSE,ADL scores of patients were remarkably decreased compared with those before treatment (P＜0.05),and the decreasing degree of study group was significantly higher than those of the control group (P＜0.05).The MSSS,MBI scores of both groups were significantly increased compared with those before treatment (P＜0.05),and the increasing degree of study group was significantly higher than those of the control group (P＜0.05).The effective rates of improvement in cognitive dysfunction and nervous dysfunction,quality of life of study group were significantly higher than those of the control group (P＜0.05).Conclusions:Huanglian wendan decoction combined with acupuncture treatment was effective for the mild cognitive impairment after stroke and could improve the quality of life.

objective To understand the status of Oncomelania hupensis snail distribution and diffusion in main drainages of Hexi Reservoir and evaluate the snail control effect of the schistosomiasis control engineering of Hexi Reservoir. Methods The O. hupensis snails were investigated by using the straw curtain method and fishing net method in different areas of the main drainages of Hexi Reservoir and the results were analyzed. Results A total of 1 800 straw curtains were used and 37 snails were found in Naxi stream. Totally 5 870 kg floats were salved and no snails were found. Conclusion The schistosomiasis con?trol engineering of Hexi Reservoir is effective in the prevention of the snail diffusion but there are still snails in the upstream. Therefore the snail surveillance and control need to be strengthened.

Objective To observe the expressions of interferon gamma (IFN-γ) and IFN-γ-inducible protein 10 (IP-10) at different stages of chronic hepatitis B virus (HBV) infection,and to investigate the relationship between IP-10 with hepatic inflammation activity and hepatitis aggravation.Methods Fifteen chronic hepatitis B (CHB) patients,15 asymptomatic HBV carriers (AsC) and 15 chronic severe hepatitis B (CSHB) patients were enrolled in the study from January 2010 to December 2011 in the Third Hospital of Hebei Medical University.The liver samples were collected by percutaneous needle biopsy or from liver transplantation.The IFN-γ and IP-10 mRNA expressions were measured by quantitative real-time polymerase chain reaction (PCR).Localization and hemi-quantitative analysis of IFN-γand IP-10 proteins were performed by immunohistochemistry staining.Concentrations of serum IFN-γ and IP-10 were quantified by enzyme linked immunosorbent assay (ELISA).HBV markers and liver function were also evaluated for each patient.Results Serum IFN-y and IP-10 concentrations increased significantly in CHB [(415.27±145.52) ng/L and (6.98± 1.12) ng/L,respectively] and CSHB [(658.33 ± 213.52) ng/L and (10.78 ± 1.19) ng/L,respectively] patients compared with AsC [(142.09 ± 47.64) ng/L and (2.4 7 ± 0.60) ng/L,respectively] patients,and were highest in CSHB patients (F=43.48,256.98 ;both P＜0.05).Meanwhile,intrahepatic IFN-γ and IP-10 mRNA and protein expressions paralleled with IFN-γ and IP-10 concentrations in the serum,which was highest in CSHB patients,followed by CHB and AsC patients (F＝693.85,210.21,433.05,214.46; all P＜0.05).Furthermore,Spearman linear correlation analysis showed that serum IP-10 level was positively correlated with both hepatic inflammation activity and serum IFN-γ concentration in CHB and CSHB patients (r =0.76 and r 0.77,respectively;both P ＜ 0.05).Conclusions IP-10,one important immunologic marker of regulating anti HBV activation,indicates progression from immune tolerance phase to immune clearance phase.Furthermore,it may affect the degree of inflammation and hepatitis aggravation.

Objective To understand the changes of schistosomiasis epidemic situation,so as to provide the evidence for for?mulating schistosomiasis control strategy in the Hexi reservoir area. Methods From 2012 to 2015,Xinyuan Village,Meishan Town in the north entrance of Hexi reservoir was selected as a monitoring site. According to the requirements of the monitoring program of schistosomiasis surveillance in Zhejiang Province,the Schistosoma japonicum infection was investigated by using the serological screening(IHA),and the basic situation of the surveillance site was also investigated. Results From 2012 to 2015,167 environments(21.68 hm2)were surveyed,and 2 slices(0.1 hm2)were found with Oncomelania hupensis snails. The detection rate of frames with snails was 0.12%,and the living snail density was 0.0192 snails per 0.1 m2. Totally 374 snails were dissected and no schistosome infected snails were found. A total of 970 local residents and 8 748 mobile people were investigated with the serological tests,and no schistosome infected people were found. In addition,3 085 cattle were investigated and no in?fected ones were found. Conclusion The schistosomiasis epidemic situation is stable in the Hexi reservoir area,but we still should strengthen the monitoring of imported source of infection and snail status,and increase the efforts of environmental trans?formation.

Objective:To explore the application value of FilmArray detection in children with acute lower respiratory tract infection and conduct economics analysis.Methods:From December 1, 2016 to November 30, 2017, 1 380 patients were enrolled in our study.Some children(FilmArray group) were tested for respiratory pathogens with FilmArray, while others (control group) were tested by 7-box antigen test of respiratory virus, gold colloid test of influenza and mycoplasma antibody.Those with underlying diseases were excluded.A total of 160 cases in the FilmArray group and 160 cases in the control group were obtained with tendency score matching method.The physical examination of pathogens, clinical indicators, usage of anti-infective drugs and hospitalization related costs were compared.Results:The positive rate of FilmArray test was significantly higher than that in control group (86.88% vs. 45.91%). The most common pathogens detected by FilmArray were adenovirus(39 cases), rhinovirus(34 cases), and parainfluenza virus(30 cases). In the FilmArray group, nine cases were positive for botulinum pertussis, accounting for 5.6% of the total.The hospitalization time of FilmArray group was shorter than that in control group [(8.89±6.23 days vs.(11.51±14.43)days]. In FilmArray group, the antibiotics were used for a shorter time, and 18 children did not use antibiotics during hospitalization.Compared with the control group, the hospitalization cost had no significant difference in the FilmArray group, but the antibiotic cost was less, as well as hospitalization time was shorter.The average hospitalization cost saved by using the FilmArray test was nearly 2 000 yuan per person. Conclusion:The application of FilmArray detection in children with acute lower respiratory tract infection can quickly and accurately identify a various infections of virus, bacteria and atypical pathogen, which guides using anti-infective drugs more reasonably.The application of FilmArray detection shortens the average hospitalization days of children, increases the utilization efficiency of medical resources, and reduces the medical cost and indirect economic loss of children’s families, which has certain economics significance.

Objective:To explore the value of detecting pneumocystis carini(PC)rapidly in immunocompromised patients by loop mediated isothermal amplification(LAMP).Methods:Respiratory tract specimens of immunocompromised children suspected of pneumocystis carinii pneumonia(PCP) at Shanghai Children′s Medical Center, School of Medicine, Shanghai Jiao Tong University were collected from May 2020 to May 2021.PCR and LAMP methods were used to detect PC.Firstly, LAMP primers of PC were synthetized according to the conserved region of PC gene, and the LAMP reaction system and reaction conditions were optimized to evaluate the sensitivity and specificity.Then, the results of pathogens were compared with those of PCR detection.Results:The established LAMP detection technology for PC had high specificity and super sensitivity.The detection results could be obtained within 1 hour.In 12 clinical samples, 10 cases were positive and 2 cases were negative, the coincidence rate of LAMP and PCR technique was 100%.Conclusion:LAMP can detect PC more rapidly and sensitively than PCR, and it can provide a good support for clinical rapid diagnosis of PCP.

Objective: To describe the association of different sleep characteristics and cardiometabolic risk among college students, so as to provide reference for health promotion of college students. Methods: By random cluster sampling method, a questionnaire survey and physical examination including blood pressure, waist circumference and blood lipid indicators, which were conducted in April and May of 2019 among a total of 1 179 college students from the first grade in two universities in Hefei City of Anhui Province and Shangrao City of Jiangxi Province. A total of 729 college students with valid questionnaires were included into analysis. The Pittsburgh Sleep Quality Index (PSQI) and Insomnia Severity Index (ISI) were used to investigate sleep behavior, and the Morning And Evening Questionnaire-5 (MEQ-5) was used to investigate sleep characteristics. The cardiometabolic risk score was derived using the sum of the standardized sex specific Z scores of waist circumference, mean arterial pressure, HDL cholesterol (multiplied by -1), triglycerides, and insulin resistance index. The rank sum tests were used to compare differences in cardiometabolic risk scores across demographic characteristics. Generalized linear models were used to compare the association of different sleep characteristics with cardiometabolic risk scores among college students. Results: The average cardiovascular metabolic risk score of college students was -0.32(-2.03, 1.58). There were statistically significant differences in cardiovascular metabolic risk scores among college students in variables such as smoking, health status, and physical activity levels ( t/F=-3.41, 12.88, 51.07, P <0.01). The results of the generalized linear model showed that nighttime preference ( B=1.89, 95%CI =1.02-3.49), insomnia symptoms ( B=3.25, 95%CI =1.79-5.90), and short or long sleep duration ( B=1.92, 95%CI =1.21-3.05) were positively correlated with the cardiovascular metabolic risk score of college students ( P <0.05). Conclusions Poor sleep patterns among college students are positively correlated with the risk of cardiovascular metabolism. The sleep behavior of college students should be actively changed to reduce the risk of cardiovascular disease.

Objective:To investigate the pathogens and drug resistance of bacterial enteritis in children, analyze the clinical characteristics of bacterial enteritis in children, and provide basis for clinical diagnosis and treatment.Methods:The fecal culture strain and drug sensitivity of patients with bacterial enteritis admitted to our hospital from January 2016 to December 2020 were analyzed and summarized, and the clinical characteristics of patients who were infected by Salmonella and Escherichia coli were compared.Results:There were a total of 173 patients, aged from 21 days to 15 years, with a median age of 2.00(1.10, 3.54)years.Bacterial enteritis was most likely to occur in summer and autumn, and the incidence rate was 40.5% and 29.5%, respectively.One hundreds and seventy-three strains of bacteria were cultured in feces, including 148 strains of Salmonella(85.5%), 18 strains of Escherichia coli(10.4%), five strains of Staphylococcus aureus and two strains of Shigella.One hundreds and one of 141 patients who were infected with Salmonella were detected for leukocytes of in feces(71.6%), and four of 16 patients with Escherichia coli were detected for leukocytes(25.0%). The difference was significant( χ2=14.1, P<0.001). Eighty-eight of 113 patients(77.9%) who were infected by Salmonella with increased CRP(CRP>8 mg/L)and the proportion in Escherichia coli infection cases was 6/13(46.2%). There was significant difference( χ2=4.63, P=0.03). The drug sensitivity of Salmonella and Escherichia coli was summarized.There was no carbapenem resistant strain cultured; The sensitivity to piperacillin/tazobactam and cefoperazone/sulbactam was higher than 85%; The sensitivity to cefepime, ceftazidimeand ceftriaxone was higher than 75%; The sensitivity to ampicillin was lower than 30%, and the sensitivity to quinolones was between 20%-40%. Conclusion:Children aged 1-3 years are prone to bacterial enteritis in summer and autumn.The most common pathogens causing bacterial enteritis are Salmonella and Escherichia coli.White blood cells are more easily detected in feces of patients with Salmonella infection, and the increase rate of C-reactive protein in peripheral blood is higher.Patients with bacterial enteritis are recommended to use the third-generation cephalosporins and aforementioned antibiotics and piperacillin/tazobactam for empirical treatment.The sensitivity to quinolones is reduced, and may not be suitable for clinical application.