2.Data analysis on hepatitis B through pilot surveillance reporting system in Henan province, 2012-2016.
Y H GUO ; Y Y LYU ; J H YANG ; J XU ; J LI ; Y YE ; Y Y ZHANG
Chinese Journal of Epidemiology 2018;39(4):500-504
Objective: To standardize the reporting system on hepatitis B in order to improve the quality of monitoring program in Henan province. Methods: A total of 6 sites of Hepatitis B pilot surveillance were selected in Xinzheng of Zhengzhou city, Linzhou of Anyang city, Shanyang district of Jiaozuo city, Shaoling district of Luohe city, Yongcheng of Shangqiu city, Pingqiao district of Xinyang city in Henan province. Subjects under study were those reported hepatitis B cases, from 2012 to 2016. Cases diagnosed in 2011 were chosen as controls. Data on classification of hepatitis B, time that HBsAg became positive and ALT value of the cases were analyzed annually. 5 ml venous blood was collected and anti-HBc IgM confirmed test was made for those suspected acute cases on hepatitis B. Based on the 2016 data from the monitoring system, the incidence of acute hepatitis B in Henan province was estimated. Results: The number of reported hepatitis B cases had declined in 6 sites of Hepatitis B pilot surveillance substantially. A total of 17 436 hepatitis B reported in 2011 but only 2 632 cases were reported in 2016, with a reduction of 84.90%(14 804/17 436) in these six monitoring sites. The number of unclassified hepatitis B cases also dropped sharply. In 2011, 36.87% of the cases were unclassified, but the figure reduced to 0.08% in 2016, from the six sites. The rate on ALT detection also gradually improved. The rate of misdiagnosis on HBV carrier from hepatitis B almost disappeared. From 2013 to 2016, 777 blood samples were collected from six pilot sites. 29.34% (228/777) of the blood samples were tested positive for anti-HBc IgM after confirmed by the hepatitis laboratory of the China Center for Disease Control and Prevention. Conclusions: Since the development of the pilot surveillance program, the quality of reporting system on hepatitis B had been improved, as well as the accuracy of diagnosis. Rate on the accuracy of reporting on hepatitis B and the methods of testing should be improved at the monitoring sites.
China/epidemiology*
;
Cities
;
Disease Notification/statistics & numerical data*
;
Hepatitis A/epidemiology*
;
Hepatitis B/epidemiology*
;
Hepatitis B Antibodies/blood*
;
Hepatitis B Surface Antigens/blood*
;
Humans
;
Incidence
;
Pilot Projects
;
Population Surveillance
;
Sentinel Surveillance
4.Expression of human FUS protein in Drosophila leads to progressive neurodegeneration.
Yanbo CHEN ; Mengxue YANG ; Jianwen DENG ; Xiaoping CHEN ; Ye YE ; Li ZHU ; Jianghong LIU ; Haihong YE ; Yan SHEN ; Yan LI ; Elizabeth J RAO ; Kazuo FUSHIMI ; Xiaohong ZHOU ; Eileen H BIGIO ; Marsel MESULAM ; Qi XU ; Jane Y WU
Protein & Cell 2011;2(6):477-486
Mutations in the Fused in sarcoma/Translated in liposarcoma gene (FUS/TLS, FUS) have been identified among patients with amyotrophic lateral sclerosis (ALS). FUS protein aggregation is a major pathological hallmark of FUS proteinopathy, a group of neurodegenerative diseases characterized by FUS-immunoreactive inclusion bodies. We prepared transgenic Drosophila expressing either the wild type (Wt) or ALS-mutant human FUS protein (hFUS) using the UAS-Gal4 system. When expressing Wt, R524S or P525L mutant FUS in photoreceptors, mushroom bodies (MBs) or motor neurons (MNs), transgenic flies show age-dependent progressive neural damages, including axonal loss in MB neurons, morphological changes and functional impairment in MNs. The transgenic flies expressing the hFUS gene recapitulate key features of FUS proteinopathy, representing the first stable animal model for this group of devastating diseases.
Aged
;
Aging
;
genetics
;
metabolism
;
pathology
;
Amyotrophic Lateral Sclerosis
;
genetics
;
metabolism
;
pathology
;
Animals
;
Animals, Genetically Modified
;
Disease Models, Animal
;
Drosophila melanogaster
;
genetics
;
metabolism
;
Gene Expression
;
Humans
;
Microscopy, Electron, Scanning
;
Motor Neurons
;
metabolism
;
pathology
;
Mushroom Bodies
;
metabolism
;
pathology
;
Mutant Proteins
;
genetics
;
metabolism
;
Mutation
;
Photoreceptor Cells, Invertebrate
;
metabolism
;
pathology
;
Plasmids
;
RNA-Binding Protein FUS
;
genetics
;
metabolism
;
Recombinant Fusion Proteins
;
genetics
;
metabolism
;
Retinal Degeneration
;
pathology
;
physiopathology
;
Transfection
6.Seasonal distribution of patient hospitalization due to asthma exacerbation in 7 geographic areas in China.
J T LIN ; B XING ; H P TANG ; L YANG ; Y D YUAN ; Y H GU ; P CHEN ; X J LIU ; J ZHANG ; H G LIU ; C Z WANG ; W ZHOU ; D J SUN ; Y Q CHEN ; Z C CHEN ; M HUANG ; Q C LIN ; C P HU ; X H YANG ; J M HUO ; X W YE ; X ZHOU ; P JIANG ; W ZHANG ; Y J HUANG ; L M DAI ; R Y LIU ; S X CAI ; J Y XU ; J Y ZHOU
Chinese Journal of Epidemiology 2018;39(11):1477-1481
Objective: To understand the seasonal distribution of patient hospitalization due to asthma exacerbation in 7 geographic areas in China. Methods: This was a retrospective study which involved patients hospitalized for asthma exacerbation in 29 hospitals throughout 7 geographic areas in the mainland of China (northeast, north, central, east, south, northwest and southwest). The numbers of asthmatic patients and total inpatients of the respiratory department of each hospital were recorded. The monthly ratio of asthmatic patients to the total inpatients in every area was calculated and compared. Results: During the study period, 6 480 patients were admitted for asthma exacerbation, accounting for 3.14% of all the 206 135 patients admitted to the respiratory departments in the 29 hospitals. The ratio of asthmatic patients to total inpatients in the northeast area (5.61%) was highest, and the ratio in east area was lowest (1.97%). Statistical analysis showed that the difference among different areas was significant (P<0.000 1). In most areas, both the number and proportion of hospitalized asthmatic patients peaked in spring (February-April) and autumn (September-October). In the northeast area, east area and south area, the peaks in spring were more obvious, while in the north area and southwest area, the peaks in autumn were more obvious. In the northwest area the peaks occurred in winter (December-January) and summer (June-August), respectively. The differences in hospitalization due to asthma among different months were significant in the northeast, north, and southwest areas (P<0.005). Conclusion: The number of patients hospitalized for asthma exacerbation fluctuated with season in different areas in China. In most areas, more asthmatic patients were admitted to hospitals in spring and autumn.
Asthma
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China/epidemiology*
;
Hospitalization/statistics & numerical data*
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Humans
;
Retrospective Studies
;
Seasons
7.Fujian Tulou Family Cohort Study: study design and characteristics of participants and pedigrees in baseline investigation.
H HUANG ; Y YE ; C L HUANG ; W J GAO ; M Y WANG ; W Y LI ; R ZHOU ; C Q YU ; J LYU ; X L WU ; X M HUANG ; W H CAO ; Y S YAN ; T WU ; L M LI
Chinese Journal of Epidemiology 2018;39(10):1402-1407
Objective: To describe the study design, the characteristics of participants as well as the pedigrees included in the baseline survey of Fujian Tulou Family Cohort Study. Methods: Fujian Tulou Family Cohort Study was a prospective open cohort study with a biological sample bank. A baseline survey was conducted in Tulou areas of Nanjing county in Fujian province from 2015 to 2018, including questionnaire survey, physical and biochemical indicators examinations, and blood sample collection in adults aged ≥18 years. In addition, family relationship of the participants was also recorded. The pedigree information of the juveniles under 18 years old were also collected. Results: The baseline survey included 2 727 individuals in two clans, of whom 2 373 (87.0%) were adults, and 2 126 participants completed questionnaires, physical examinations and biochemical tests. The average age of the 2 126 participants was (57.9±13.3) years, with 39.4% being males. The current smoking rates in male and female participants were 41.2% and 2.1%, respectively. The corresponding rates of current alcohol consumption were 19.0% and 2.6%. For common chronic diseases, the prevalence rates were 51.3% for hypertension, 9.7% for diabetes and 26.7% for hyperlipemia according to the self-reported disease diagnoses, health examination results and biochemical examination results in class Ⅱ or Ⅲ hospitals. Based on the family relationship information and genealogical data, 710 pedigrees were finally identified, consisting of 5 087 family members. The numbers of five, four, three, and two generations pedigrees were 3, 88, 238 and 381, respectively. The pairs of the first to the fifth degree relatives were 12 039, 2 662, 1 511, 202 and 31, respectively. Conclusion: The establishment of Fujian Tulou Family Cohort provides valuable resources for exploring the genetic risk factors, environmental risk factors and gene-environment interactions contributing to the risk of common chronic diseases.
Adolescent
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Adult
;
Aged
;
China/epidemiology*
;
Chronic Disease/ethnology*
;
Cohort Studies
;
Diabetes Mellitus/ethnology*
;
Family Health
;
Female
;
Gene-Environment Interaction
;
Genetic Predisposition to Disease/ethnology*
;
Humans
;
Hyperlipidemias/ethnology*
;
Hypertension/ethnology*
;
Male
;
Middle Aged
;
Pedigree
;
Prospective Studies
;
Risk Factors
;
Surveys and Questionnaires
8.HIV gene subtypes of newly reported HIV/AIDS cases in Dehong Dai and Jingpo autonomous prefecture of Yunnan province, 2016.
X DUAN ; K R WANG ; J B WANG ; R H YE ; Y K WANG ; J YANG ; T YANG ; S J ZHOU ; Y C YANG ; S T YAO ; S DUAN ; N HE
Chinese Journal of Epidemiology 2018;39(5):678-681
Objective: To explore distribution of HIV gene subtypes among newly reported HIV/AIDS cases from China and Myanmar in Dehong Dai and Jingpo prefecture of Yunnan province in 2016. Methods: We conducted DNA extractions from newly reported HIV/AIDS cases in 2016. The gag, env and pol genes were amplified by using reverse transcription-PCR (RT-PCR) and sequenced to identify HIV subtypes. Results: A total of 1 112 newly diagnosed HIV cases were reported in Dehong in 2016, and the HIV subtypes were identified for 860 cases. Subtype C was predominant (33.6%), followed by unique recombinant forms (URFs) (28.4%), CRF01_AE (18.6%) and so on. URFs include four recombination, among which the recombination of CRF01_AE and C subtype were predominant. The HIV subtype distribution was associated with nationality and transmission route in HIV/AIDS cases from Myanmar. Conclusions: The gene subtypes of C, URFs and CRF01_AE were mainly distributed; distribution of URFs remained complex and diverse among newly reported HIV/AIDS cases in Dehong in 2016.
Base Sequence
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China/epidemiology*
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Ethnicity/genetics*
;
Genes, pol
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Genotype
;
HIV Infections/genetics*
;
HIV-1/genetics*
;
Humans
;
Male
;
Phylogeny
;
Polymerase Chain Reaction/methods*
;
Serogroup
9.Molecular transmission clusters on HCV genotypes among newly reported HIV/HCV co-infection in Dehong Dai and Jingpo autonomous prefecture of Yunnan province, 2016.
Y K WANG ; X C CHEN ; J B WANG ; X DUAN ; S J ZHOU ; J YANG ; T YANG ; R H YE ; Y C YANG ; S T YAO ; S DUAN ; N HE
Chinese Journal of Epidemiology 2019;40(2):191-195
Objective: To understand the characteristics on major strain subtypes of hepatitis C virus among HIV/HCV co-infected patients, so as to explore the molecular transmission clusters and related risk factors of HCV strains. Methods: A total of 336 newly reported HIV-infected patients were diagnosed as HIV/HCV co-infection in Dehong Dai and Jingpo autonomous prefecture (Dehong) in 2016. We used Nested PCR to amplify CE1 and NS5B genes among 318 samples with plasma levels above 200 μl, before using the combining phylogenetic tree and constructing molecular propagation network method to analyze the related data. Results: A total of 267 HIV/HCV co-infection patients who had met the HCV genotyping requirements were screened the gene subtypes were diversified. Among these genotypes, proportions of 3b, 6n, 6u, 1a, 3a and other subtypes appeared as 32.6% (87/267), 18.4% (49/267), 15.7%(42/267), 13.1%(35/267), 11.2%(30/267) and 9.0%(24/267) respectively. Molecular transmission network of five major HCV genotypes was constructed with a clustering rate of 39.1% (95/243). The clustering rate of subtype 1a was the highest, as 71.4% (25/35). Results from the multivariate logistic regression showed that ethnic minorities other than the Yi and Jingpo (vs. the Han, OR=0.17, 95%CI: 0.04-0.71), the married spouses (vs. the unmarried, OR=0.42, 95%CI: 0.18-0.94), the 6n and 3a subtype (vs. the 3b subtype, OR=0.34, 95%CI: 0.12-0.95; OR=0.22, 95%CI: 0.05-0.93) were more difficult to form transmission clusters. However, the 6u and 1a subtype (vs. the 3b subtype, OR=3.10, 95%CI: 1.21-7.94; OR=4.00, 95%CI: 1.32-12.11) seemed more likely to form the transmission clusters. Conclusion: Ethnicity, marital status and genetic subtypes were factors significantly associated with the formation of transmission clusters related to the major HCV gene subtypes among newly reported HIV/HCV co-infection in Dehong.
AIDS-Related Opportunistic Infections/virology*
;
Asian People
;
China/epidemiology*
;
Coinfection
;
Genotype
;
HIV Infections/virology*
;
Hepacivirus/isolation & purification*
;
Hepatitis C/virology*
;
Humans
;
Phylogeny
;
Polymerase Chain Reaction
10.Associations of obesity and physical activity with cognition in people aged 50 and above in Shanghai.
Z Z HUANG ; Y C ZHANG ; Y ZHENG ; Y F GUO ; Y RUAN ; S Y SUN ; Y SHI ; S N GAO ; J H YE ; Y J YAN ; K WU ; R F XU ; F WU
Chinese Journal of Epidemiology 2018;39(3):273-279
Objective: To investigate the associations of obesity and physical activity with cognition in the elderly. Methods: A cross-sectional survey was conducted from October 2009 to June 2010 among people aged ≥50 years selected through multistage random cluster sampling in Shanghai. The subjects' body weight, body height, waist circumference and hip circumference were measured to calculate body mass index (BMI) and waist-hip ratio (WHR), and the data on self-reported physical activity level were collected through questionnaire survey. A comprehensive battery of cognitive tests was conducted to assess subjects' cognitive functions, including verbal recall, forward digit span (FDS), backward digit span (BDS), and verbal fluency (VF). General linear model was used to examine the associations of BMI, WHR and physical activity with cognition. Results: A total of 7 913 participants were included, with a median age of 60 years. Age, sex, education level, income level, BMI, WHR and physical activity level were significantly associated with cognitive scores in univariate analysis. After adjusted for age, sex, education level and income level, BMI was no longer significantly associated with cognitive scores in all cognitive functions (all P>0.01). WHR was significantly associated with VF score (P<0.01). Abdominally obese participants had lower VF score than non-abdominally obese participants (P<0.01). Physical activity level was significantly associated with all cognitive functions (P<0.01). Compared with participants with moderate physical activity level, participants with low physical activity level had lower scores in all cognitive functions (P<0.01). Conclusion: Abdominal obesity and low physical activity level were negatively associated with cognition level in the elderly, suggesting that waist circumference control and physical activity might help maintain cognition in the elderly.
Aged
;
Body Height
;
Body Mass Index
;
Body Weight
;
China
;
Cognition/physiology*
;
Cross-Sectional Studies
;
Exercise
;
Humans
;
Middle Aged
;
Obesity
;
Surveys and Questionnaires
;
Waist Circumference
;
Waist-Hip Ratio