Objective To investigate the changes of cytokines in hand-foot-and-mouth disease( HFMD) patients.Methods Retrospective analysis was performed on the clinical data of 262 cases of HFMD.All 262 children with HFMD were divided into two groups:severe cases and non-severe cases.Five cytokines( IL-2,IL-6,IL-10,TNF-αand IFN-γ) simultaneously were detected by luminex multiplexed assays.Results There were 153 severe cases and 109 non-severe cases,The results showed that the levels of IL-2,IL-6,IL-10,TNF-αin severe cases were higher than non-severe cases,and the differences were significant (18.02 ng/L vs 22.71ng/L, 28.42 ng/L vs 53.76 ng/L,17.92 ng/L vs 42.37 ng/L,102.29 ng/L vs 207.99 ng/L,P<0.05 ) .No significant difference of IFN-γlevel was found between the two groups(325.51 vs 373.78 ng/L,P>0.05).In 40 critical cases,plasma levels of IL-2,IL-6,IL-10,TNF-α,and IFN-γwere significantly decreased after administration of intravenous immunoglobulin( P<0.05 ) .Conclusion Some cytokines increase in children with severe HFMD, indicating that inflammatory and anti-inflammatory reaction may play importent roles in the pathogenesis of se-vere HFMD.The findings suggest that intravenous immunoglobulin might play a therapeutic role in severe HFMD.

Objective To explore the diagnosis and treatment for ureterovesical junction (UVJ) stricture. Methods 18 cases of UVJ stricture were analysed retrospectively,of them unilateral stricture of UVJ in 11(left 5,right 6),bilateral stricture of UVJ in 7.The ureterovesicoplasty was performed in 7 cases.The procedure of passive dilation of the UVJ and placing a double-J stent under endoscopy were performed in 6 cases.The plasticity of UVJ with the mucosa of bladder were performed in 7 cases. Results All cases were followed up 2 months to 23 years and cure rate was 78%,the rate of improvement was 22%.67% of cure rate was achieved by stent placing.The renal function, hydronephrosis were obviously improved after operation and there were no vesicoureteral reflux. Conclusions The passive dilation of the ureter and then placing a double-J stent under endoscopy is a safe and effective measure.The ureterovesicoplasty and the procedure which plasticity of UVJ with the mucosa of bladder are the safe and effective methods.

Objective:To analyze the epidemiological characteristics of human immunodeficiency virus (HIV) and hepatitis B virus (HBV) co-infected patients in Beijing and investigate the associated factors.Methods:The clinical data of patients with HIV infection who were treated in HIV/AIDS designated hospitals (Peking Union Medical College Hospital, Beijing Ditan Hospital and Beijing Youan Hospital) were retrospectively analyzed.Results:A total of 11 572 patients were finally included in the study, among whom 532 patients (4.6%) were co-infected with HIV and HBV. Most of the co-infected patients were young male adults (28~48 years old), accounting for 85.9%. The main transmission route was homosexual behavior (74.8%). There were 87.4% co-infected patients treated with two anti-HBV drugs, including lamivudine (3TC) and tenofovir (TDF). From 2013 to 2018, the annual prevalence of HIV and HBV co-infection decreased gradually, with the rate of 6.37%, 4.55%, 3.92%, 4.68%, 4.24% and 2.74%, respectively. In our study, The main influencing factors of HIV and HBV co-infection were age older than 28 years old versus<28 years old ( OR=2.807, 95% CI 1.241-6.345) and marriage status (married versus unmarried, OR=1.259, 95% CI 1.004-1.579). Conclusions:The proportion of HBV infection in HIV-infected patients is 4.60% (532) in our cohort. From 2013 to 2018, the prevalence of HIV and HBV co-infection in Beijing shows a decreasing trend. The risk of co-infection is higher in married young adults (28~48 years old).

Objective To screen the Doc 1R gene recombinant plasmid by use of colony PCR. Method The recombinant colonies were transfered into the PCR reaction mixture. The PCR primers were used for constructing mouse Doc 1R genomic sequence. Result Among the 5, 3 positive strips in the size of 1 500 bp were visible, which were the same as the Doc 1R gene fractions in terms of their sizes were screened as positive clones. The positive colony were further confirmed by double digestion and DNA sequencing. Conclusion Colony PCR is a simple, efficient and reliable technique for screening the recombinant.

Objective To investigate clinical features and treatment experience of severe cases of influenza A H 1N 1.Methods A retrospective analysis of 78 severe cases of influenza A H1N1 admitted in Beijing You'an Hospital from June 2009 to January 2010 were performed.Clinical manifestations,laboratory tests and imaging characteristics were summarized and discussed.Results The mean value of incubation period of severe cases was 2.1 days (range 1-7 days).The main clinical manifestations were fever,red throat and cough,mostly complicated with pneumonia.The mortality is higher in the elders and patients with underlying diseases.Chest X-ray showed unilateral or bilateral patchy shadows in lungs.Conclusion Severe influenza A H1N1 is a dangerous illness with high mortality.Close attention should be paied to the elder and patients with underlying diseases.It is important to take antiviral treatment in time.

Objective To identify the prevalence and etiology of kidney disease and the related risk factors in type 2 diabetic patients in rural Shanghai.Methods A cross-sectional study in type 2 diabetic patients was conducted in a community of Shanghai.Questionnaire,clinical examination and laboratory tests were completed to collect the information about sociodemographic and healthcare characteristics.Results A total of 1421 eligible patients with complete information were screened from 1487 type 2 diabetic patients between November 2008 and March 2009.Of them,40.75％ were men,59.25％ were women,aged 37-86 (61.33 ± 9.65 ) years old,with diabetic duration of 0.25-43.92 (7.85 ± 6.34) years.Among them,43.42％ had diabetic retinopathy,21.18％ had neuropathy; 69.95％ met the screening definition for hypertension,76.07％ for hyperlipidemia,15.55％ for hyperuricemia and 23.65％ for cardiovascular disease.The control rates of fasting blood glucose,glycosylated hemoglobin,blood pressure and serum cholesterol were 57.71％,33.99％,14.22％ and 2.46％,respectively.The prevalence of kidney disease,diabetic nephropathy and non-diabetic renal disease was 41.31％,18.51％ and 13.44％,respectively; and 9.36％ were diagnosed as renal insufficiency of unknown reasons.Age,diabetic duration,hyperuricemia,diabetic retinopathy and poor control of blood pressure were independently associated with kidney disease;age and poor control of blood pressure were independently associated with diabetic nephropathy; age and hyperuricemia were independent risk factors of renal insufficiency in patients with diabetic nephropathy.Conclusions Although the diabetic duration of these subjects is relatively short,the prevalence of complications including diabetic nephropathy is high.The high prevalence of non-diabetic renal disease shows the importance of further screening and diagnoses for prevention.Strict control of blood glucose,blood pressure,serum cholesterol and serum uric acid are key points of cutting down the prevalence of diabetic nephropathy and chronic kidney disease.