1.Study on early warning threshold values for 7 common communicable diseases in Gansu province, 2016.
Y CHENG ; X F LIU ; L MENG ; X T YANG ; D P LIU ; K F WEI ; X J JIANG ; H X LIU ; Y H ZHENG
Chinese Journal of Epidemiology 2018;39(3):352-356
Objective: To optimize the warning threshold values of common communicable diseases in Gansu province, and improve the early warning effect. Method: An early warning model was set up for influenza, scarlet fever, other infectious diarrheal diseases, dysentery, typhoid and paratyphoid, viral hepatitis type E and hand foot and mouth disease (HFMD) respectively in Gansu by using the moving percentile method and cumulative sum method. By calculating the sensitivity, specificity, predictive value of positive test, predictive value of negative test, Youden' index and receiver-operating characteristic curve, the optimum early warning threshold values for communicable diseases in Gansu were selected. Results: The optimum early warning boundary values of influenza, scarlet fever, other infectious diarrheal diseases, dysentery, typhoid and paratyphoid, and viral hepatitis type E were P(90), P(80), P(95), P(90), P(80) and P(90) respectively. The optimum early warning parameters of HFMD were k=1.2, H=5σ. Under the optimum early warning boundary values/parameters, the early warning sensitivities of influenza, scarlet fever, other infectious diarrheal diseases, dysentery, typhoid and paratyphoid, viral hepatitis type E and HFMD were 86.67%, 100.00%, 91.67%, 100.00%, 100.00%, 100.00% and 100.00%, the specificities were 86.49%, 62.22%, 75.00%, 100.00%, 97.92%, 89.13% and 74.47%. The predictive values of positive test were 72.22%, 29.17%, 52.38%, 100.00%, 80.00%, 54.55% and 29.41%, and the predictive values of negative test were 94.12%, 100.00%, 96.77%, 100.00%, 100.00%, 100.00% and 100.00%, and the Youden' indexes were 0.73, 0.62, 0.67, 1.00, 0.98,0.89 and 0.74. Receiver-operating characteristic curve showed that the values/parameters of this warning boundary were the points closest to the upper left of the coordinate diagram. Conclusion: The early warning thresholds of influenza, other infectious diarrheal diseases, dysentery and hepatitis E in Gansu may be raised appropriately and the early warning parameters of HFMD need to be adjusted to improve the effectiveness of early warning.
China
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Communicable Disease Control/methods*
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Communicable Diseases/epidemiology*
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Disease Notification
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Disease Outbreaks/prevention & control*
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Humans
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Models, Theoretical
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Population Surveillance/methods*
2.Analysis of structure, function and epitopes of Spirometra erinaceieuropaei casein kinase I
Liu, L.N ; Wang, Z.Q ; Zhang, X ; Jiang, P ; Zhang, Z.F ; Zhang, G.Y ; Cui, J.
Tropical Biomedicine 2015;32(1):167-175
Spirometra erinaceieuropaei casein kinase I (SeCKI) was analyzed using
bioinformatical methods to predict its structure and function based on the deduced amino
acid sequence from full length cDNA sequence of SeCKI gene with online sites and software
programs. The longest open reading frame contains 448 amino acids, 50 kDa and theoretical
pI of 4.73, with a complete tubulin domain, a SMART tubulin_C domain and a low complexity
region. SeCKI has no signal sequence and no transmembrane domain, but is predicted to be
located extracellularly. The secondary structure of SeCKI contains 12 α-helixes, 11 β-strands
and 22 coils. SeCKI had 19 potential antigenic epitopes and 25 HLA-I restricted epitopes.
Based on phylogenetic analysis of SeCKI sequence, S. erinaceieuropaei has the closest
evolutionary status with Hymenolepis microstoma. Information from this study could provide
important insights into the identification of diagnostic antigens and molecular targets of antisparganum
drugs.
3.Inducing vascular smooth muscle cell proliferation by insulin involves in phosphatidylinositol 3-kinase and ERK1/2
Chang-Qing YU ; Ye ZHANG ; Chun-Jiang FU ; X-Kai WANG ;
Chinese Journal of Pathophysiology 2000;0(11):-
AIM:To investigate the effect of insulin on vascular smooth muscle cells (VSMCs) proliferation and to evaluate the intracellular signaling pathways involved.METHODS:VSMCs separated from Sprague-Dawley rats were used in this study. The proliferation of VSMCs induced by insulin was assayed by [3H]-thymidin incorporation. The protein expression and activity of p-ERK1/2 were determined by immunblot and [?-32P]ATP incorporation.RESULTS:Insulin induced cell proliferation in a concentration-dependent manner. The proliferative effect of insulin on VSMCs was inhibited partly by LY294002 (48.8%),an inhibitor of PI-3 kinase,and the ERK1/2 inhibitor PD98059 (43.6%),respectively. Moreover,phosphorylation of ERK1/2 and activity of ERK1/2 induced by insulin were also inhibited partly by LY294002.CONCLUSION:PI-3 kinase and ERK1/2 are involved in insulin induced VSMCs proliferation.
4.The Mechanism of Cortico-Striato-Thalamo-Cortical Neurocircuitry in Response Inhibition and Emotional Responding in Attention Deficit Hyperactivity Disorder with Comorbid Disruptive Behavior Disorder.
Yuncheng ZHU ; Xixi JIANG ; Weidong JI
Neuroscience Bulletin 2018;34(3):566-572
The neurocircuitries that constitute the cortico-striato-thalamo-cortical (CSTC) circuit provide a framework for bridging gaps between neuroscience and executive function in attention deficit hyperactivity disorder (ADHD), but it has been difficult to identify the mechanisms for regulating emotional problems from the understanding of ADHD comorbidity with disruptive behavior disorders (DBD). Research based on "cool" and "hot" executive functional theory and the dual pathway models, which are thought of as applied response inhibition and delay aversion, respectively, within the neuropsychological view of ADHD, has shed light on emotional responding before and after decontextualized stimuli, while CSTC circuit-related domains have been suggested to explain the different emotional symptoms of ADHD with or without comorbid DBD. This review discusses the role of abnormal connections in each CSTC circuit, especially in the emotion circuit, which may be responsible for targeted executive dysfunction at the neuroscience level. Thus, the two major domains - abstract thinking (cool) and emotional trait (hot) - trigger the mechanism of onset of ADHD.
Animals
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Attention Deficit Disorder with Hyperactivity
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complications
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pathology
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psychology
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Attention Deficit and Disruptive Behavior Disorders
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complications
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pathology
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psychology
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Brain
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physiopathology
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Cerebral Cortex
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physiopathology
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Corpus Striatum
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physiopathology
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Emotions
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Humans
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Inhibition (Psychology)
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Neuropsychological Tests
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Thalamus
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physiopathology
5.Response Inhibition and Emotional Regulation in the Patients with Attention-Deficit/Hyperactivity Disorder and Comorbidity of Disruptive, Impulse-Control, and Conduct Disorders
Xixi JIANG ; Yuncheng ZHU ; Yiru FANG
Psychiatry Investigation 2019;16(11):872-874
No abstract available.
Comorbidity
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Conduct Disorder
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Humans
6.ELECTRA: electricity-driven low energy and chemical input technology for accelerated bioremediation.
Shuang-Jiang LIU ; Philippe F-X CORVINI ; Korneel RABAEY
Chinese Journal of Biotechnology 2021;37(10):3405-3410
The international cooperation project "electricity-driven low energy and chemical input technology for accelerated bioremediation" (abridged as "ELECTRA") is jointly supported by National Nature Science Foundation of China (NSFC) and European Commission (EC). The ELECTRA consortium consists of 5 research institutions and universities from China and 17 European research institutions and universities, as well as high-tech companies of EC countries. ELECTRA focuses on researches of biodegradation of emerging organic compounds (EOCs) and novel environmental biotechnologies of low-energy and low-chemical inputs. The project has been successfully operated for 2 years, and has made important progresses in obtaining EOCs-degrading microbes, developing weak-electricity-accelerated bioremediation, and 3D-printing techniques for microbial consortium. The ELECTRA has promoted collaborations among the Chinese and European scientists. In the future, ELECTRA will overcome the negative impact of the COVID-19 pandemic and fulfill the scientific objectives through strengthening the international collaboration.
Biodegradation, Environmental
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Biotechnology
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COVID-19
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Electricity
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Humans
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Pandemics
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SARS-CoV-2
7.Astrovirus infection among hospitalized children with acute diarrhea in seven regions of China, 1998-2005.
Zhao-yin FANG ; Ya-ping SUN ; Xin-hua YE ; Hui WANG ; Qing ZHANG ; Zhao-jun DUAN ; Jiang X I ; Duncan STEELE ; Roger GLASS
Chinese Journal of Epidemiology 2006;27(8):673-676
OBJECTIVETo study the epidemiology and strain variations of astrovirus infection among children under 5 years of age, hospitalized for acute diarrhea in China.
METHODSInpatients under 5 years of age with acute diarrhea in hospitals of seven provinces between 1998 and 2005 were enrolled in the study Stool specimens were collected and tested for astrovirus using the Dako Amplified IDEIA Astrovirus kits or reverse-transcription polymerase chain reaction (RT-PCR). Genetic identities of the strains were determined using RT-PCR with serotype-specific primers and confirmed by sequencing of the RT-PCR products.
RESULTSA total of 1668 diarrheal stool samples tested for both rotavirus and calicivirus negative were examined. The detection rate of astrovirus infection was 5.5% (91/1668) and the diarrhea cases caused by astrovirus infection could be found in any season of the year but mainly occurred in cold season from October to next January. Astrovirus detection-rates were: 7.4% among infants aged 9-11 months followed by 6.1% in 12-17 month-olds, and 6-8 months 5.6% & 0-2 months 5.6% before 8 months. Over 95% of astrovirus infections occurred in children before 2 years of age. Among 49 strains, typed, serotype 1(45/91) was most commonly seen while serotype 5 was in two cases and serotype 3 and 8 were detected in only one case respectively.
CONCLUSIONAstrovirus seemed an important etiologic agent in young children with acute diarrhea in China and Serotype 1 was the most prevalent one.
Acute Disease ; Astroviridae ; classification ; isolation & purification ; Astroviridae Infections ; complications ; epidemiology ; Child, Preschool ; China ; epidemiology ; DNA, Viral ; analysis ; Diarrhea ; virology ; Humans ; Infant ; Infant, Newborn ; Inpatients ; Reverse Transcriptase Polymerase Chain Reaction ; Seasons ; Serotyping
8.Determination of tenuifolin in Tianwang Buxinwan and Guipiwan by HPLC.
Xiao-bing DONG ; Jun LI ; Yong JIANG ; Ying ZHENG ; T X Tina DONG ; Peng-fei TU ; W K Karl TSIM
China Journal of Chinese Materia Medica 2007;32(16):1647-1649
OBJECTIVEA quantitative method was developed for the determination of tenuifolin in Tianwang Buxinwan and Guipiwan by HPLC.
METHODThe samples were separated by Alltima C18 column (4.6 mm x 250 mm, 5 microm) using methanol--0.05% phosphoric acid (65:35) as a mobile phase, flow rate was 1.0 mL x min(-1) and wavelength was set at 202 nm.
RESULTTenuifolin was detected in both Chinese preparations. The number of theoretical plates calculated by tenuifolin peak was 2 500. The regression equation of tenuifolin was Y = 5.239 x 10(6) X-6.247 x 10(5) (r = 0.9994) and the liner range was 10-500 g x mL(-1). The average recovery of tenuifolin was 97.5% (RSD less than 3.0%). The LOD of tenuifolin was 5.50 g x mL(-1).
CONCLUSIONThe method is sensitive, rapid and accurate.
Chromatography, High Pressure Liquid ; methods ; Codonopsis ; chemistry ; Diterpenes, Kaurane ; analysis ; Drug Combinations ; Drugs, Chinese Herbal ; chemistry ; Plants, Medicinal ; chemistry ; Polygala ; chemistry ; Reproducibility of Results ; Salvia miltiorrhiza ; chemistry ; Saponins ; analysis ; Triterpenes ; analysis
9.Management programs on diabetes among Chinese adults in the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases.
R R JIN ; J J LI ; J ZHANG ; J L LI ; F BIAN ; G J DENG ; S MA ; X W SU ; J ZHAO ; Y JIANG
Chinese Journal of Epidemiology 2018;39(4):407-411
Objective: To understand the current situation on management of diabetes mellitus patients aged 35 and above in the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases, in China. Methods: Local residents, aged 18 years and above were randomly selected by a complex, multistage, probability sampling method. Face-to-face questionnaire survey was carried out between November and December 2016. Rates regarding prevalence, treatment and management of diabetes were calculated, and influencing factors of diabetes were analyzed by using the non-conditional logistic regression model. Results: A total of 3 213 residents aged ≥35 years were included in this study, of which 11.48% (369/3 213) reported that they had ever been informed by a doctor or other health worker that their blood sugar level was high or being diabetic. The rate of self-reported treatment among the diabetic patients was 83.20% (307/369). Rates on overall management and standardized management were 69.92% (258/369) and 53.66% (198/369), respectively. Higher rates were seen in residents aged 55 to 64 years, 76.32% for overall management and 59.65% for standardized management. Through multiple logistic regression analysis, we found that standardized management for diabetes was much higher in the Demonstration Areas located in the eastern areas (OR=2.942, 95%CI: 1.547-5.594), or patients with characteristics including high implementation score (OR=3.499, 95%CI: 1.865-6.563), already signed family doctors (OR=5.661, 95%CI: 3.237-9.899), or without hypertension (OR=1.717, 95%CI: 1.010- 2.920). Residents who were living in the first and second batch areas of implementation or responding to the NCDs with positive attitude were more likely to accept standardized management. Conclusion: Prevention and management programs on diabetes had met the requirements set for the Demonstration Areas which had promoted the specific implementation and further development of standardized management on diabetes.
Adult
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Aged
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Asian People/statistics & numerical data*
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China/epidemiology*
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Diabetes Mellitus/therapy*
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Humans
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Hypertension/epidemiology*
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Logistic Models
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Middle Aged
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Noncommunicable Diseases/prevention & control*
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Population Surveillance
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Prevalence
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Risk Factors
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Self Care
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Surveys and Questionnaires