1.A cross-sectional study of renal injury in human immunodeficiency virus infection/acquired immunodeficiency syndrome patients after antiviral therapy in Henan Province
Xuan YANG ; Zhongfeng CUI ; Chaoyang LIU ; Lin ZHANG ; Quanxi LI ; Yujiao NIU ; Xue ZHANG ; Xiaohua ZHANG ; Zhaoyun CHEN ; Qiong LI ; Jinjin LIU ; Yan SUN
Chinese Journal of Infectious Diseases 2024;42(7):395-402
Objective:To understand the clinical characteristics of human immunodeficiency virus (HIV) infection/acquired immunodeficiency syndrome (AIDS) patients with renal injury after antiviral therapy in Henan Province, and to explore the risk factors of renal injury.Methods:A cross-sectional study was conducted to investigate HIV infection/AIDS patients receiving antiviral therapy in Zhengzhou Sixth People′s Hospital, Anyang Fifth People′s Hospital, Hebi Third People′s Hospital, Luo Yang Zhoushan Hospital and Lankao Central Hospital in Henan Province from April 1 to September 30, 2023. The clinical information including basic data, antiviral therapy regimens and comorbidities, and laboratory test results (blood urea nitrogen, serum creatinine, blood uric acid, urine routine, urine microalbumin, urine α 1-microglobulin (α 1-MG), urine β 2-microglobulin (β 2-MG), urine retinol binding protein (RBP), urine creatinine, HIV viral load, CD4 + T lymphocyte count) were collected. Multivariate binary logistic regression was used to analyze independent risk factors for renal injury. Results:A total of 2 526 HIV infection/AIDS patients were included, with the age of (45.52±14.28) years and 2 156 (85.4%) males. The main route of transmission was sexual transmission (91.6%, 2 314/2 526). The duration of antiviral therapy was 5.00(2.92, 8.00) years. Tenofovir (TDF)+ lamivudine (3TC)+ non-nucleoside reverse transcriptase inhibitors (NNRTI) accounted for 55.3%(1 396/2 526) of the current antiviral therapy regimen. The percentage of HIV viral load <50 copies/mL was 93.0%(2 350/2 526). The CD4 + T lymphocyte count was 476(337, 645)/μL. There were 156 patients (6.2%) complicated with hepatitis B and/or hepatitis C, 205 patients (8.1%) with diabetes, 379 patients (15.0%) with hyperlipidemia, and 189 patients (7.5%) with hyperuricemia. A total of 1 040 patients (41.2%) with renal injury were found through renal function test, including 355 cases (14.1%) with estimated glomerular filtration rate (eGFR) <60 mL/(min·1.73 m 2) or urine protein positive or urine albumin creatine ratio (UACR) ≥30 mg/g, 682 patients (27.0%) with pure tubular injury presented with only positive for urinary α 1-MG, urinary β 2-MG, or urinary RBP. eGFR< 60 mL/(min·1.73 m 2) was found in 71 cases (2.8%), eGFR from 60 to 89 mL/(min·1.73 m 2) was found in 509 cases (20.2%), and eGFR≥90 mL/(min·1.73 m 2) was found in 1 946 cases (77.0%). A total of 138 patients (5.5%) were identified as having combined chronic kidney disease (CKD). Among them, 110 patients (79.7%) were in CKD stages 1 to 2, and 117 patients (84.8%) were in urinary albumin A2 grade. Multivariate analysis of 355 patients with renal injury who had eGFR<60 mL/(min·1.73 m 2) or positive urine protein in urine routine or UACR ≥30 mg/g showed that ages of 50 to 69 years old (odds ratio( OR)=2.189, 95% confidence interval ( CI) 1.333 to 3.596, P=0.002)), ≥70 years old ( OR=5.190, 95% CI 2.912 to 9.248, P<0.001), female ( OR=1.685, 95% CI 1.241 to 2.286, P=0.001), combined opportunistic infection ( OR=2.521, 95% CI 1.567 to 4.056, P<0.001), combined hepatitis B ( OR=1.962, 95% CI 1.110 to 3.467, P=0.020), combined hepatitis C ( OR=1.883, 95% CI 1.043 to 3.400, P=0.036), combined diabetes ( OR=2.703, 95% CI 1.911 to 3.821, P<0.001), using TDF for two to four years ( OR=1.674, 95% CI 1.103 to 2.459, P=0.015), using TDF for greater than or equal to five years ( OR=1.880, 95% CI 1.287 to 2.746, P=0.001), using TDF combined with lopinavir/ritonavir (LPV/r) ( OR=3.610, 95% CI 2.273 to 5.734, P<0.001) and using TDF combined with non-LPV/r ( OR=1.495, 95% CI 1.036 to 2.157, P=0.031) were the risk factors of renal injury. Conclusions:There is a high proportion of renal injury among HIV infection/AIDS patients after antiviral therapy in Henan Province, including CKD and simple renal tubular injury. Older age, female, comorbidities, and long-term use of TDF are risk factors for renal injury.
2.Lipopolysaccharides protect mesenchymal stem cell against cardiac ischemia-reperfusion injury by HMGB1/STAT3 signaling.
Jing-Yi WEN ; Hui-Xi PENG ; Dan WANG ; Zhi-Min WEN ; Yu-Tong LIU ; Jian QU ; Hong-Xuan CUI ; Yu-Ying WANG ; Yan-Lin DU ; Ting WANG ; Cong GENG ; Bing XU
Journal of Geriatric Cardiology 2023;20(11):801-812
BACKGROUND:
Myocardial ischemia-reperfusion (I/R) is a serious and irreversible injury. Bone marrow-derived mesenchymal stem cells (MSCs) is considered to be a potential therapy for I/R injury due to the paracrine effects. High-mobility group box 1 (HMGB1) is a novel mediator in MSC and regulates the response of inflammation injury. Signal Transduction and Transcription Activator 3 (STAT3) is a critical transcription factor and important for release of paracrine factors. However, the relationship between HMGB1 and STAT3 in paracrine effect of MSC remains unknown.
METHODS:
In vitro, hypoxia/reoxygenation injury model was established by AnaeroPack System and examined by Annexin V flow cytometry, CCK8 assay and morphology observation. Detection of apoptotic proteins and protein expression of HMGB1 and STAT3 by Western blot.
RESULTS:
The conditioned medium of MSCs with or without LPS pretreatment was cocultured with H9C2 cells for 24 h before hypoxia treatment and MSC showed obvious cardiomyocytes protect role, as evidence by decreased apoptosis rate and improved cells viability, and LPS pretreated MSC exhibited better protect role than untreated MSC. However, such effect was abolished in HMGB1 deficiency group, silencing HMGB1 decreased the secretion of vascular endothelial growth factor (VEGF), hepatocyte growth factor (HGF), insulin growth factor (IGF), cell viability, and the expression of STAT3. Furthermore, STAT3 silence attenuated the protective effect of LPS in MSC.
CONCLUSIONS
These findings suggested that LPS improved MSC-mediated cardiomyocytes protection by HMGB1/STAT3 signaling.
3.Safety of butylphthalide and edaravone in patients with ischemic stroke: a multicenter real-world study.
Shu-Xian LYU ; Dong-Fang QIAN ; Yu-Fei FENG ; Cheng-Wu SHEN ; Lu-Bo GUO ; Jian-Tao LYU ; Peng-Fei JIN ; Ting LI ; Si-Yuan TAN ; Zi-Xuan ZHANG ; Lin HUANG ; Xue ZHONG ; Le-Qun SU ; Xin HU ; Xin HUANG ; Xue-Yan CUI
Journal of Geriatric Cardiology 2023;20(4):293-308
BACKGROUND:
Butylphthalide (NBP) and edaravone (EDV) injection are common acute ischemic stroke medications in China, but there is a lack of large real-world safety studies on them. This study aimed to determine the incidence of adverse events, detect relevant safety signals, and assess the risk factors associated with these medications in real-world populations.
METHODS:
In this study, data of acute ischemic stroke patients were extracted from the electronic medical record database of six tertiary hospitals between January 2019 and August 2021. Baseline confounders were eliminated using propensity score matching. The drugs' safety was estimated by comparing the results of 24 laboratory tests standards on liver function, kidney function, lipid level, and coagulation function. The drugs' relative risk was estimated by logistic regression. A third group with patients who did not receive NBP or EDV was constructed as a reference. Prescription sequence symmetry analysis was used to evaluate the associations between adverse events and NBP and EDV, respectively.
RESULTS:
81,292 patients were included in this study. After propensity score matching, the NBP, EDV, and third groups with 727 patients in each group. Among the 15 test items, the incidence of adverse events was lower in the NBP group than in the EDV group, and the differences were statistically significant. The multivariate logistic regression equation revealed that NBP injection was not a promoting factor for abnormal laboratory test results, whereas EDV had statistically significant effects on aspartate transaminase, low-density lipoprotein cholesterol and total cholesterol. Prescription sequence symmetry analysis showed that NBP had a weak correlation with abnormal platelet count. EDV had a positive signal associated with abnormal results in gamma-glutamyl transferase, alanine aminotransferase, aspartate aminotransferase, prothrombin time, and platelet count.
CONCLUSIONS
In a large real-world population, NBP has a lower incidence of adverse events and a better safety profile than EDV or other usual medications.
4.Dihydromyricetin mediates epithelial mesenchymal transformation and regulates the proliferation and apoptosis of esophageal squamous cell carcinoma cells.
Ya Ping TIAN ; Yi Shuang CUI ; Xuan ZHENG ; Bao Lin LIU ; Yong Pan ZHANG ; Kun Peng WEI ; Zhi ZHANG ; Wan Ning HU ; Xue Mei ZHANG ; Guo Gui SUN
Chinese Journal of Oncology 2022;44(4):326-333
Objective: To study the effects of dihydromyricetin (DMY) on the proliferation, apoptosis and epithelial mesenchymal transition (EMT) of esophageal squamous cell carcinoma (ESCC) cell KYSE150 and KYSE410. Methods: KYSE150 and KYSE410 cells were treated with different concentrations of DMY (0, 25, 50, 100, 150, 200 μmol/L) for 24 hours. The median inhibition concentration (IC50) values of KYSE150 and KYSE410 were detected by cell counting kit-8 (CCK-8) method. Then 0.5‰ dimethyl sulfoxide (DMSO) was used as control group, dihydromyricetin (DMY), dihydromyricetin and transforming growth factor-β1 (DMY+ TGF-β1), transforming growth factor-β1 (TGF-β1) were used as experimental group. Cell proliferation and apoptosis rates were measured by clonal formation and flow cytometry. Transwell invasion and wound healing assay were used to detect cell invasion and migration. The protein expression levels of Caspase-3, Caspase-9, Bcl-2, Bax, Smad2/3, phosphorylation-Smad2/3 (p-Smad2/3) and Vimentin were detected by western blot. Results: The IC50 values of DMY on KYSE410 and KYSE150 cells were 100.51 and 101.27 μmol/L. The clone formation numbers of KYSE150 and KYSE410 in DMY group [(0.53±0.03) and (0.31±0.03)] were lower than those in DMSO group [(1.00±0.10) and (1.00±0.05), P<0.05]. The apoptosis rates of KYSE150 and KYSE410 cells in DMY group [(1.84±0.22)% and (2.80±0.07)%] were higher than those in DMSO group [(1.00±0.18)% and (1.00±0.07)%, P<0.05]. The invasion numbers of KYSE150 and KYSE410 cells in DMY group [(0.42±0.03) and (0.29±0.05)] were lower than those in DMSO group [(1.00±0.08) and (1.00±0.05), P<0.05]. The migration rates of KYSE150 and KYSE410 cells in DMY group [(0.65±0.14)% and (0.40±0.17)%] were lower than those in DMSO group [(1.00±0.10)% and (1.00±0.08)%, P<0.05]. The clone formation numbers of KYSE150 and KYSE410 in TGF-β1 group [(1.01±0.08) and (0.99±0.25)] were higher than those in DMY+ TGF-β1 group [(0.73±0.10) and (0.58±0.05), P<0.05]. The apoptosis rates of KYSE150 and KYSE410 cells in TGF-β1 group [(0.81±0.14)% and (1.18±0.10)%] were lower than those in DMY+ TGF-β1 group [(1.38±0.22)% and (1.85±0.04)%, P<0.05]. The invasion numbers of KYSE150 and KYSE410 cells in TGF-β1 group [(1.19±0.11) and (1.39±0.11)] were higher than those in DMY+ TGF-β1 group [(0.93±0.09) and (0.93±0.05), P<0.05]. The migration rates of KYSE150 and KYSE410 cells in TGF-β1 group [(1.87±0.19)% and (1.32±0.04)%] were higher than those in DMY+ TGF-β1 group [(0.86±0.16)% and (0.77±0.12)%, P<0.05]. The protein expression levels of Bax, Caspase-3 and Caspase-9 in KYSE150 and KYSE410 cells in DMY group were higher than those in DMSO group, while the protein expression level of Bcl-2 was lower than that in DMSO group (P<0.05). The protein expression levels of p-Smad2/3, Smad2/3 and Vimentin in KYSE150 and KYSE410 cells in DMY group were lower than those in DMSO group (P<0.05). The protein expression levels of Bax, Caspase-3 and Caspase-9 in KYSE150 and KYSE410 cells in TGF-β1 group were lower than those in DMY+ TGF-β1 group, and the protein expression level of Bcl-2 was higher than that in DMY+ TGF-β1 group (P<0.05). The protein expression levels of Bax, Caspase-3 and Caspase-9 in KYSE150 and KYSE410 cells in DMY+ TGF-β1 group were lower than those in DMY group, and the protein expression level of Bcl-2 was higher than that in DMY group (P<0.05). The protein expression levels of p-Smad2/3, Smad2/3 and Vimentin in KYSE150 and KYSE410 cells in TGF-β1 group were higher than those in DMY+ TGF-β1 group (P<0.05). Conclusion: DMY can inhibit the proliferation and EMT of ESCC mediated by TGF-β1 and promote cell apoptosis.
Apoptosis
;
Caspase 3/metabolism*
;
Caspase 9/metabolism*
;
Cell Line, Tumor
;
Cell Movement
;
Cell Proliferation
;
Dimethyl Sulfoxide/pharmacology*
;
Epithelial-Mesenchymal Transition
;
Esophageal Neoplasms/metabolism*
;
Esophageal Squamous Cell Carcinoma
;
Flavonols
;
Humans
;
Signal Transduction
;
Transforming Growth Factor beta1/pharmacology*
;
Vimentin/metabolism*
;
bcl-2-Associated X Protein/pharmacology*
5.The big data diagnosis-intervention packet payment method: experience from Shanghai and Guangzhou
Su XU ; Jinglei WU ; Hua XIE ; Li LIN ; Qian ZENG ; Xin CUI ; Jianwei XUAN ; Xiaohua YING ; Yujia YANG ; Yazhen YING
Chinese Journal of Hospital Administration 2021;37(3):186-190
Medical insurance payment model is transforming from project-based purchases to service bundle-based strategic purchases. The new form of bundled purchases should found on a scientifically-led design process of such bundles. The core to bundled purchase would be the payment standard, and the key to its success would be process control. Establishment of such a foundation, a core, and a key, would promote the current price standards, and lead service providers to a standardized medical service standard, so as to ensure a precise rewarding system of payment and service. The big data diagnosis-intervention packet(DIP)is able to fulfill mentioned ambitions by integrating insurance payment and supervision into one management. DIP is a full-process payment mode that encompasses pre-service estimation, in-service process control, post-service grading, and resource allocation. It is an innovative practice in line with China′s national conditions for the modern governance of medical security and medical services.
6.Expression of PD-1/PD-L1 in esophageal squamous cell carcinoma and its relationship with survival prognosis: A systematic review and meta-analysis
Qiyao YU ; Bin LI ; Haiming FENG ; Junping LIN ; Ci YIN ; Zheng LI ; Xuan LI ; Yiming SUN ; Wenjie MAO ; Jie LI ; Cui XIAO
Chinese Journal of Clinical Thoracic and Cardiovascular Surgery 2021;28(11):1352-1359
Objective To systematically evaluate the expression of programmed cell death receptor 1 (PD-1) and programmed cell death ligand 1 (PD-L1) in esophageal squamous cell carcinoma and its relationship with prognosis. Methods The literature from PubMed, EMbase, The Cochrane Library, Web of Science, CNKI and Wanfang data from inception to February 22, 2020 was searched by computer. Data were extracted and the quality of literature was evaluated using RevMan 5.3 software for meta-analysis. Egger's and Begg's tests were used to evaluate publication bias, and Stata 15.1 software was used for sensitivity analysis. Results A total of 16 articles were included, and there were 3 378 patients with esophageal squamous cell carcinoma. The methodological index for nonrandomized studies (MINORS) scores were all 12 points and above. The meta-analysis results showed that the positive expression rates of PD-1 and PD-L1 in tumor cells were 37.8% (190/504) and 41.7% (1 407/3 378), respectively. The positive expression of PD-L1 in tumor immune infiltrating cells was 41.7% (412/987). The overall survival (OS) of the tumor cell with high PD-L1 expression was lower than that with low PD-LI expression (HR=1.30, 95%CI 1.01-1.69, P=0.04). The OS of the tumor immune infiltrating cell with high PD-L1 expression was significantly higher than that with low PD-LI expression (HR=0.65, 95%CI 0.53-0.80, P<0.000 1). Conclusion PD-L1 has a high expression rate in esophageal squamous cell carcinoma and is an important factor for the prognosis of esophageal squamous cell carcinoma.
7.Compatibility Rules of Prescriptions Containing Forsythiae Fructus in Dictionary of Traditional Chinese Medicine Prescriptions and Anti-inflammatory Mechanism: An Exploration Based on Data Mining and Network Pharmacology
Jia-jun WENG ; Yi-lin XIE ; Xuan-shuo ZHANG ; Cui GAO ; Can CUI ; Jia-xiong ZHAO ; Xu-feng BAI ; Yan-chen ZHU ; Hui-ming HU ; Gui-yuan LYU
Chinese Journal of Experimental Traditional Medical Formulae 2021;27(22):181-193
Objective:To analyze the compatibility rules of prescriptions containing Forsythiae Fructus based on data mining and explore the anti-inflammatory mechanism of Forsythiae Fructus based on network pharmacology,so as to provide reference for the rational clinical application of Forsythiae Fructus and the development of health foods and new Chinese medicines. Method:The prescriptions containing Forsythiae Fructus in the
8.Network Meta-analysis of efficacy and safety of Chinese patent medicines in treatment of insomnia.
Meng-Long SHI ; Min ZHAO ; Yan-Hua WANG ; Tian-Ye SUN ; Xuan-Lin LI ; Fang REN ; Song-Bo BIAN ; Zhi-Hui CUI ; Shan-Shan LI
China Journal of Chinese Materia Medica 2021;46(20):5403-5417
To evaluate the efficacy and safety of Chinese patent medicines in the treatment of insomnia by frequency network Meta-analysis. Randomized controlled trials of Chinese patent medicines for insomnia were retrieved from CNKI, Wanfang, VIP, SinoMed, PubMed, EMbase and Cochrane Library databases from the time of database establishment to October 2020. The quality of the included RCTs was evaluated according to the Cochrane bias risk standard, and the data was analyzed by RevMan 5.3 and Stata/MP 15.1. A total of 11 kinds of Chinese patent medicines in 27 RCTs were included. According to Meta-analysis, in term of the effective rate, Tianmeng Liquid, Zaoren Anshen Capsules, Shumian Capsules, Shensong Yangxin Capsules, Shenqi Wuweizi Tablets, Shugan Jieyu Capsules, Anshen Bunao Liquid and Qiye Anshen Tablets combined with nonbenzodiazepine drugs(NBZDs) were superior to NBZDs alone. In term of the improvement of Pittsburg sleeping quality index(PSQI) score, Tianmeng Liquid, Shumian Capsules, Shensong Yangxin Capsules, Bailemian Capsules, Shenqi Wuweizi Tablets, Shugan Jieyu Capsules, Yangxue Qingnao Granules and Yindan Xinnaotong Capsules combined with NBZDs were superior to NBZDs alone. In terms of the safety, Shumian Capsules, Shensong Yangxin Capsules, Shenqi Wuweizi Tablets and Qiye Anshen Tablets combined with NBZDs were superior to NBZDs alone. In terms of the avoidance of dizziness and headache, Qiye Anshen Tablets combined with NBZDs were superior to NBZDs alone. The results of Network Meta-analysis indicated that in term of the effective rate, top three optimal medication regimens were NBZDs combined with Shugan Jieyu Capsules, combined with Zaoren Anshen Capsules and combined with Shensong Yangxin Capsules in the order from high to low. With the respect of improvement of PSQI score, top three optimal medication regimens were NBZDs combined with Yangxue Qingnao Granules, combined with Tianmeng Liquid and combined with Yindan Xinnaotong Capsules in the order from high to low. In terms of the safety, top three optimal medication regimens were NBZDs combined with Qiye Anshen Tablets, combined with Shensong Yangxin Capsules and combined with Shenqi Wuweizi Tablets in the order from high to low. In terms of the avoidance of dizziness and headache, top three optimal medication regimens were NBZDs combined with Qiye Anshen Tablets, combined with Zaoren Anshen Capsules and combined with Shumian Capsules in the order from high to low. In terms of the avoidance of fatigue, top three optimal medication regimens were NBZDs combined with Shensong Yangxin Capsules, combined with Shumian Capsules and combined with Qiye Anshen Tablets in the order from high to low. In conclusion, Chinese patent medicines combined with NBZDs can effectively alleviate the symptoms of insomnia with a high safety. However, the conclusion of this study needs to be verified by more high-quality studies because of the low methodological quality of the included studies.
China
;
Drugs, Chinese Herbal
;
Humans
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Medicine, East Asian Traditional
;
Network Meta-Analysis
;
Nonprescription Drugs
;
Sleep Initiation and Maintenance Disorders/drug therapy*
9.Effect of breastfeeding on the development of infection-related diseases during hospitalization in late preterm infants in 25 hospitals in Beijing, China.
Lu-Yan HAN ; Xiao-Jing XU ; Xiao-Mei TONG ; Xin ZHANG ; Jie LIU ; Li YANG ; Hui LIU ; Ju YAN ; Zhi-Fang SONG ; Ya-Bo MEI ; Rong MI ; Xuan-Guang QIN ; Yu-Huan LIU ; Yu-Jie QI ; Wei ZHANG ; Hui-Hui ZENG ; Hong CUI ; Hui LONG ; Guo GUO ; Xu-Lin CHEN ; Zhao-Yi YANG ; Fang SUN ; Xiao-Hui FU ; Chang-Yan WANG ; Zheng-Hong LI
Chinese Journal of Contemporary Pediatrics 2020;22(12):1245-1250
OBJECTIVE:
To investigate the incidence rate of infectious diseases during hospitalization in late preterm infants in Beijing, China, as well as the risk factors for infectious diseases and the effect of breastfeeding on the development of infectious diseases.
METHODS:
Related data were collected from the late preterm infants who were hospitalized in the neonatal wards of 25 hospitals in Beijing, China, from October 23, 2015 to October 30, 2017. According to the feeding pattern, they were divided into a breastfeeding group and a formula feeding group. The two groups were compared in terms of general status and incidence rate of infectious diseases. A multivariate logistic regression analysis was used to investigate the risk factors for infectious diseases.
RESULTS:
A total of 1 576 late preterm infants were enrolled, with 153 infants in the breastfeeding group and 1 423 in the formula feeding group. Of all infants, 484 (30.71%) experienced infectious diseases. The breastfeeding group had a significantly lower incidence rate of infectious diseases than the formula feeding group (22.88% vs 31.55%,
CONCLUSIONS
Breastfeeding can significantly reduce the incidence of infectious diseases and is a protective factor against infectious diseases in late preterm infants. Breastfeeding should therefore be actively promoted for late preterm infants during hospitalization.
Beijing/epidemiology*
;
Breast Feeding
;
China/epidemiology*
;
Communicable Diseases/epidemiology*
;
Female
;
Hospitalization
;
Hospitals
;
Humans
;
Incidence
;
Infant
;
Infant, Newborn
;
Infant, Premature
;
Male
;
Pregnancy
10.Molecular epidemiological and genotypic analysis of human adenovirus infection in children with acute diarrhea in Tianjin from 2017 to 2018
Xuan LI ; Chaomeng FAN ; Shuxiang LIN ; Wei WANG ; Ping WANG ; Yulian FANG ; Hualei CUI
International Journal of Biomedical Engineering 2019;42(2):109-114
Objective To understand the infection status, epidemiological characteristics and genetic evolution of adenovirus in children with diarrhea in Tianjin. Methods A total of 1609 fecal specimens were collected from hospitalized children with diarrhea from July 2017 to July 2018 in Tianjin Children's Hospital. Viral nucleic acid was extracted and amplified by the hexon gene fragment. Positive specimens were used for nucleic acid sequence determination and sequence alignment and phylogenetic tree analysis with known sequences in GenBank. Rotavirus in the stool specimens was detected by gold standard method, and campylobacter was detected by latex agglutination method. Bocavirus, Norovirus and Clostridium difficile were detected by quantitative real-time polymerase chain reaction (qRT-PCR). Results A total of 69 specimens with adenoviruses were detected in 1609 cases, with a positive rate of 4.3%, in which 82.6%adenovirus-positive children were between 7 and 48 months old. The positive rate of adenovirus peaked in the summer and autumn, and the differences of this value among seasons were statistical significance (χ2=11.467,P=0.009). In these cases, the mixed infection rate of adenovirus was 26.1%(18/69), in which 7 cases were mixed with Norovirus, 7 cases were mixed with rotavirus and 4 cases were mixed with Clostridium difficile. A total of 39 adenovirus-positive PCR products were randomly selected for gene sequence detection, and 7 adenovirus genotypes were detected. Results showed that these viruses were mainly the type 41 enteric adenovirus (46.1%, 18/39), followed by type 31, type 3 and type 7 non-intestinal adenovirus, while types 1, 5 and 6 were relatively rare. Conclusions There are diverse types of adenovirus in children with diarrhea in Tianjin. The adenovirus-infected diarrhea mostly happen in summer and autumn, and is common in children.

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