2.Epidemic situation of imported malaria in Chengdu City from 2012 to 2016
Zhong PENG ; Kaike TAN ; Leyuan WANG ; Hong ZHENG ; Yang CAO ; Jing WANG ; Bin ZHU ; Yuchuan YANG ; Gang CHEN ; Zhiyong SONG
Chinese Journal of Schistosomiasis Control 2017;29(4):502-504
Objective To understand the malaria epidemic situation in Chengdu City,so as to provide the evidence for effec-tively carrying out the malaria elimination work. Methods The data of imported malaria in Chengdu City from 2012 to 2016 were collected from the Disease Surveillance Information Reporting System of Chinese Center for Disease Control and Prevention and analyzed respectively. Results A total of 240 imported malaria cases were reported in Chengdu City from 2012 to 2016. In de-tail,68.75%of the cases were falciparum malaria cases,20.41%were vivax malaria cases,2.50%were quartan malaria cases, 6.25%were ovale malaria cases,and 2.08%were mixed Plasmodium infections. Among them three patients died,with a mortali-ty of 1.25%. All of the cases were infected overseas,among which 224 patients returned from Africa and 16 patients from South-east Asia. The annual average morbidity was 0.28/100000,and there was a significantly difference among annual average mor-bidities(χ2=23.87,P<0.001). There were malaria cases reported in every month,and no significantly difference among sea-sons(χ2=0.833,P>0.05). Conclusion The number of overseas imported malaria in Chengdu City increases year by year. The effective measures to control the overseas imported malaria should be strengthened to consolidate the achievements of malar-ia elimination.
3.Construction of eukaryotic expression vector of EGFRi-IL-24 recombinant gene.
Jianling WANG ; Xinying FAN ; Leyuan BAO ; Lianxiang DU
Journal of Biomedical Engineering 2010;27(2):395-399
The epithelial growth factor receptor interference (EGFRi) was obtained by synthetic primers. Overlapping PCR was used to produce EGFRi-IL-24 fusion gene, which is linked by Gly4Ser3. After sequence analysis, EGFRi-IL-24 was cloned into expression vector pPIC9k; EGFRi-IL-24/pPIC9k was linearized with SacI,and then transformed to electroporated pastoris GS115. Subsequently, positive clone was selected by G418 and PCR, and its phenotype was determined by SDS-PAGE and MTT assay. The results demonstrated that EGFRi-IL-24 protein was expressed and shown to have the potential for use in researches of its biological function and in clinical application.
Antineoplastic Agents
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pharmacology
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Genetic Vectors
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genetics
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Humans
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Interleukins
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biosynthesis
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genetics
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Pichia
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genetics
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metabolism
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Receptor, Epidermal Growth Factor
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antagonists & inhibitors
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biosynthesis
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genetics
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Recombinant Fusion Proteins
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biosynthesis
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genetics
;
pharmacology
4.MiR-139-5p inhibits migration and invasion of colorectal cancer by downregulating AMFR and NOTCH1.
Mingxu SONG ; Yuan YIN ; Jiwei ZHANG ; Binbin ZHANG ; Zehua BIAN ; Chao QUAN ; Leyuan ZHOU ; Yaling HU ; Qifeng WANG ; Shujuan NI ; Bojian FEI ; Weili WANG ; Xiang DU ; Dong HUA ; Zhaohui HUANG
Protein & Cell 2014;5(11):851-861
MicroRNAs (miRNAs) that exert function by posttranscriptional suppression have recently brought insight in our understanding of the role of non-protein-coding RNAs in carcinogenesis and metastasis. In this study, we described the function and molecular mechanism of miR-139-5p in colorectal cancer (CRC) and its potential clinical application in CRC. We found that miR-139-5p was significantly downregulated in 73.8% CRC samples compared with adjacent noncancerous tissues (NCTs), and decreased miR-139-5p was associated with poor prognosis. Functional analyses demonstrated that ectopic expression of miR-139-5p suppressed CRC cell migration and invasion in vitro and metastasis in vivo. Mechanistic investigations revealed that miR-139-5p suppress CRC cell invasion and metastasis by targeting AMFR and NOTCH1. Knockdown of the two genes phenocopied the inhibitory effect of miR-139-5p on CRC metastasis. Furthermore, the protein levels of the two genes were upregulated in CRC samples compared with NCTs, and inversely correlated with the miR-139-5p expression. Increased NOTCH1 protein expression was correlated with poor prognosis of CRC patients. Together, our data indicate that miR-139-5p is a potential tumor suppressor and prognostic factor for CRC, and targeting miR-139-5p may repress the metastasis of CRC and improve survival.
Animals
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Base Sequence
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Cell Line, Tumor
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Cell Movement
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genetics
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Colorectal Neoplasms
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genetics
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pathology
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therapy
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Down-Regulation
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Female
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Gene Expression Profiling
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Gene Expression Regulation, Neoplastic
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HCT116 Cells
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HEK293 Cells
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Humans
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Male
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Mice, Inbred BALB C
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Mice, Nude
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MicroRNAs
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genetics
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Middle Aged
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Neoplasm Invasiveness
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RNA Interference
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Receptor, Notch1
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genetics
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metabolism
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Receptors, Autocrine Motility Factor
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genetics
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metabolism
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Reverse Transcriptase Polymerase Chain Reaction
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Sequence Homology, Nucleic Acid
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Survival Analysis
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Xenograft Model Antitumor Assays
5.Correction to: MiR-139-5p inhibits migration and invasion of colorectal cancer by downregulating AMFR and NOTCH1.
Mingxu SONG ; Yuan YIN ; Jiwei ZHANG ; Binbin ZHANG ; Zehua BIAN ; Chao QUAN ; Leyuan ZHOU ; Yaling HU ; Qifeng WANG ; Shujuan NI ; Bojian FEI ; Weili WANG ; Xiang DU ; Dong HUA ; Zhaohui HUANG
Protein & Cell 2021;12(8):668-670
6. Association between dyslipidemia and carotid plaque incidence in a research group: a prospective cohort study
Jian LIU ; Xuehua MA ; Leyuan YAN ; Miao LIU ; Shengshu WANG ; Yao HE
Chinese Journal of Epidemiology 2019;40(3):341-345
Objective:
To assess the association and intensity of baseline dyslipidemia with the incidence of carotid plaque in a researchers group in China.
Methods:
A total of 716 researchers were enrolled in this prospective cohort study. Dyslipidemia was assessed in 2010. Follow-up study on carotid plaque was conducted in 2017.
Results:
Over 8 years’ follow-up, 289 carotid plaque patients were identified among 716 individuals who did not have carotid plaque at baseline survey, with cumulative incidence of 40.36
7. Association between hypertension and carotid plaque in a physical examination population: a cross-sectional study
Jian LIU ; Xuehua MA ; Leyuan YAN ; Miao LIU ; Shanshan YANG ; Shengshu WANG ; Yao HE
Chinese Journal of Health Management 2020;14(1):21-26
Objective:
This study aimed to assess the association between hypertension and carotid plaque in a research population in China.
Methods:
The subjects of this study were selected from a population undergoing physical examination at the Fourth Medical Center of PLA General Hospital in 2017. We collected information on physical examination, physiological index test, blood pressure indicators were analyzed according as continuous variables (systolic blood pressure, diastolic blood pressure, and pulse pressure) and categorical variables (hypertension and quartile of blood pressure pulse pressure). A multivariate logistic regression model was conducted to estimate the correlation between blood pressure and carotid plaque development.
Results:
A total of 716 individuals were surveyed, including 321 men (44.8%) and 395 women (55.2%), and the prevalence of hypertension and carotid plaque were 40.9%(293 cases) and 40.4% (289 cases), respectively. The prevalence of carotid plaque was higher in individuals aged ≥60 years, diabetes mellitus, hypertension and increased waist circumference, systolic blood pressure, fasting blood glucose and glycosylated hemoglobin. The prevalence of carotid plaque increased with the increase of the quartile of blood pressure and pulse pressure (