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.Analysis of Structures, Functions, and Epitopes of Aminopeptidase from Trichinella spiralis
Zhang, Y.L., , Zhang, H.W., Zhang, X., Liu, L.N., Liu, R.D., Xu, B.L., Wang, Z.Q., Cui, J.
Tropical Biomedicine 2015;32(4):776-782
We have previously reported that the recombinant T. spiralis aminopeptidase
(rTsAP) could induce a partial protective immunity against T. spiralis infection in mice. The
aim of this study was to predict the structures and functions of TsAP protein by using the full
length cDNA sequence of TsAP gene. TsAP sequence was 1515 bp length with a 1515 bp
biggest ORF encoding 504-amino acid protein. The molecular weight and isoelectric point of
TsAP were 54.7 kDa and 6.69, respectively. TsAP structure domains contained a
Peptidase_M17_N and a Peptidase_M17 domain, which has the function of catalysis of the
hydrolysis of N-terminal amino acid residues. TsAP had no signal peptide site and transmembrane
domain, and located in cytoplasm. The secondary structure of TsAP contained 16 α-helix, 14
β-strand and 29 coils. The TsAP had 11 and 21 potential antigenic epitopes of T cell and B cell,
respectively. Based on the phylogenetic analyses of TsAP, T. spiralis have the closest
relationship with Plasmodium falciparum. TsAP was a kind of proteolytic enzyme with a
variety of biological functions and its antigenic epitopes could provide important insights on
the diagnostic antigens and target molecular of anti-Trichinella drugs
4.Prevalence, awareness, treatment and control of hypertension in population older than 15 years of age in Beijing, 2013-2014.
C X WANG ; X G WU ; H J LIU ; S C GUAN ; C B HOU ; H H LI ; X GU ; Z Y ZHANG ; X H FANG
Chinese Journal of Epidemiology 2018;39(2):179-183
Objective: To investigate the rates on prevalence, awareness, treatment and control of hypertension in population older than 15 years of age in Beijing, 2013-2014. Methods: A cross-sectional survey was conducted in Beijing between 2013-2014. Stratified multistage random sampling method was used to select representative sample of 13 057 Chinese individuals aged over 15 years, from the general population. Blood pressure was measured for three readings at sitting position after resting for at least five minutes with an average reading recorded. A standardized structured questionnaire was developed to collect history of hypertension and antihypertensive treatment. Results: A total of 4 663 community residents aged over 15 years were hypertensive among the 13 057 individuals, with the standardized prevalence rate as 32.7%, in Beijing area. The age-standardized prevalence rates of hypertension appeared 34.6% in men and 30.8% in women. The age-and sexstandardized prevalence of hypertension rates were 33.3% in urban and 24.6% in rural areas. The prevalence of hypertension increased with age and appeared higher in men than in women, in urban than in rural residents. Among the hypertensive patients, rates of awareness, treatment and control were 66.8%, 64.6% and 31.6%, respectively. Conclusion: High prevalence of hypertension with low rates on awareness and treatment and control, appeared in the general population of Beijing. Related strategies should be developed regarding prevention, control and management of hypertension, to reduce the burden of this disease.
Adolescent
;
Adult
;
Age Distribution
;
Aged
;
Antihypertensive Agents/therapeutic use*
;
Asian People/statistics & numerical data*
;
Awareness
;
Blood Pressure
;
Blood Pressure Determination
;
China/epidemiology*
;
Cross-Sectional Studies
;
Female
;
Health Knowledge, Attitudes, Practice
;
Humans
;
Hypertension/epidemiology*
;
Male
;
Middle Aged
;
Prevalence
;
Rural Population
;
Sex Distribution
;
Surveys and Questionnaires
;
Urban Population
;
Young Adult
5.Identification of early diagnostic antigens in soluble proteins of Trichinella spiralis adult worms by Western blot
Xu, D.M. ; Wen, H. ; Wang ; L.A., Hu ; C.X., Qi ; X., Sun ; G.G., Liu, R.D. ; Wang, Z.Q. ; Cui, J.
Tropical Biomedicine 2017;34(1):191-198
Previous studies showed that crude antigens from Trichinella spiralis adult worms
(AW) can be recognized by mouse infection sera at 8 days post infection. The aim of this study
was to identify the early diagnostic antigenic bands in soluble proteins from T. spiralis AW by
Western blot using early infection sera. The affecting factors of adult recovery were firstly
observed in this study, and the results showed that the maximum number of adults was
collected from small intestine when the female BALB/c mice were orally infected with 4000
ML and sacrificed at 3 days post infection. The results of Western blot analysis showed that
seven protein bands (31, 35.1, 39, 40.6, 41.9, 47 and 50.6 kDa) could be recognized by early
infection sera as early as at 8-10 days post infection, and were strongly reacted with mouse
infection sera at 11-12 days post infection. Our results suggested that the seven protein
bands of T. spiralis AW soluble proteins might be the early expressed antigens during the
intestinal stage of Trichinella infection and therefore have potential value for the early
diagnosis of trichinellosis.
6.Effect of hnRNP K and its interaction with HPV16 on cervical intraepithelial neoplasia.
L DING ; M J FENG ; C L LIU ; L WANG ; Z C SONG ; Q YANG ; X X LI ; L SONG ; W GAO ; J T WANG
Chinese Journal of Epidemiology 2018;39(12):1630-1635
Objective: To investigate the effect of heterogeneous nuclear ribonucleoprotein K (hnRNP K) and its interaction with human papillomavirus 16 (HPV16) on cervical intraepithelial neoplasia (CIN). Methods: The participants included 67 women with normal cervix (NC), 69 women with CINⅠ and 68 women with CINⅡ/Ⅲ in a community cohort of pathologically diagnosed women established in Jiexiu of Shanxi province, from June 2014 to June 2015. A structured questionnaire was used to collect the demographic data of the subjects and the related factors of cervical lesions. Cervical exfoliated cells and cervical tissues from biopsy or surgery were selected. The infection status of HPV16 was detected by flow-through hybridization. The protein expression levels of hnRNP K were evaluated by Western blot. SPSS 23.0 software was used to collate and analyze the data. To study the differences in demographic characteristics, related factors, hnRNP K protein and HPV16 infection among NC, CINⅠand CINⅡ/Ⅲgroups, χ(2) test, trend χ(2) test, and Kruskal-Wallis H test were conducted. Multiple comparisons of hnRNP K protein in three groups were completed by using the Bonferroni method. The OR and its 95%CI of hnRNP K, HPV16 and CIN were calculated by using the unconditional logistic regression models. Two-way interactions between hnRNP K protein and HPV16 infection on CIN were analyzed by using additive model and related indicators. Results: HPV16 infection rates were 10.4% in women with normal cervix, 14.5% in women with CINⅠ and 41.2% in women with CINⅡ/Ⅲ, respectively. The differences among three groups were significant (P<0.001). Moreover, the infection rates of HPV16 gradually increased with the increasing severity of CIN (trend χ(2)=18.512, P<0.001). The differences in protein expression of hnRNP K among three groups were significant (H=48.138, P<0.001) and the expressionincreased with the development of cervical lesionss (trend χ(2)=21.765, P<0.001). Results from the interaction analysis indicated that there were additive effects between high expression of hnRNP K protein and HPV16 in CINⅡ/Ⅲ group compared with normal group (API=0.639, 95%CI: 0.083-1.196). In contrast, no such additive effect was found in CINⅠ group. Conclusions: HPV16 infection and over-expression of hnRNP K protein were associated with the increased risk of cervical intraepithelial neoplasia. There might be interaction between hnRNP K protein overexpression and HPV16 infection existed on the progress of CINⅡ/Ⅲ.
Case-Control Studies
;
Disease Progression
;
Female
;
Gene Expression Regulation, Neoplastic
;
Heterogeneous-Nuclear Ribonucleoprotein K/metabolism*
;
Human papillomavirus 16
;
Humans
;
Papillomavirus Infections
;
Uterine Cervical Neoplasms/virology*
;
Uterine Cervical Dysplasia/virology*
7.Transmission cluster and network of HIV-1 CRF01_AE strain in China, 1996-2014.
X L WANG ; L JIA ; H P LI ; Y J LIU ; J W HAN ; T Y LI ; J Y LI ; L LI
Chinese Journal of Epidemiology 2019;40(1):84-88
Objective: To understand the transmission patterns and risk factors of HIV-1 strain CRF01_AE subtypes in China, and to provide guidance for the implementation of precise intervention. Methods: A total of 2 094 CRF01_AE pol sequences were collected in 19 provinces in China between 1996 and 2014. Phylogenetic tree was constructed by PhyML 3.0 software to select the transmission clusters. Transmission network was constructed by Cytoscape 3.6.0, which was further used for exploring of the major risk factors. Results: Of the 2 094 sequences, 12.18% (255/2 094) were in clusters. A total of 82 transmission clusters were identified. The numbers of clusters and contained sequences in intra-provincial transmission (61, 173) were significantly more than those in inter-provincial transmission (21, 82). The ratio of transmission clustering in MSM increased over time from 2.41% (2/83) during 1996-2008 to 23.61% (72/305) during 2013-2014, showing a significant upward trend (χ(2)=27.800, df=1, P=0.000). The proportion of MSM with inter-provincial transmission clusters were higher than those with intra-provincial transmission clusters, which increased from 0.67% (2/297) during 1996-2008 to 6.36%(30/472) during 2013-2014, showing a significant upward trend (χ(2)=20.276, df=1, P=0.000). The transmission rate in homosexuals of the inter-transmission clusters (86.59%, 71/82) was higher than that of intra-provincial transmission clusters (56.65%, 98/173), and the difference was statistically significant (χ(2)=22.792, P=0.000). The proportion of inter-provincial transmission clusters with more than 2 transmission routes (33.33%, 7/21) was higher than that of intra-provincial clusters (13.11%, 8/61), and the difference was statistically significant (χ(2)=4.273, P=0.039). Results from the transmission network analysis indicated that the proportion of high risk population (degree≥4) with inter-provincial transmission clusters (51.22%, 42/82) was significantly higher than that with intra-provincial transmission clusters (26.59%, 46/173), and the difference was statistically significant (χ(2)=14.932, P=0.000). Inter-provincial clusters were mainly detected in and and MSM. Conclusions: Complex transmission networks were found for HIV-1 CRF01_AE strains in the mainland of China. Inter-provincial transmission clusters increased rapidly, MSM played an important role in the wide spread of the strain. More researches in transmission networks are needed to guide the precision intervention.
China/epidemiology*
;
HIV Infections/virology*
;
HIV-1/isolation & purification*
;
Homosexuality, Male/statistics & numerical data*
;
Humans
;
Male
;
Phylogeny
8.The Indonesian Version of the Exercise Self-Efficacy Scale: Crosscultural Adaptation and Psychometric Testing *
Arif R. HAKIM ; Shan-Tair WANG ; Fransiskus X. WIDIANTORO ; Mujib HANNAN ; Chi-Jane WANG ; Suzan J. FETZER
Asian Nursing Research 2020;14(5):300-305
Purpose:
sThe study aimed to translate the Exercise Self-Efficacy Scale (ESES) into Indonesian and test the cultural equivalence, reliability, and validity of the new version for university students.
Methods:
The cross-sectional study recruited 379 Indonesian university students using convenience sampling. Phase 1, a culturally appropriate version of the ESES was developed in the Indonesian language. Phase 2, the psychometric properties were determined through exploratory factor analysis, bootstrap factor analysis, and confirmatory factor analysis. The internal consistency reliability was tested using Cronbach's α, whereas the stability using intraclass correlation coefficient to assess.
Results:
The students' ages ranged from 17 to 39 years, and 65.0% were women. For translation equivalence, the mean item content validity indexes ranged from 3.5 to 4, and all items were understandable. The 16-item scale exhibited cross-cultural appropriateness and readability, with a three-factor model explaining 62.3% of the variance in exercise self-efficacy. A bootstrap analysis using 100 resamples further confirmed the three-factor model. The indices of the good-fit model that used the three-factor by two-stage least squares method were satisfactory, with χ2/df = 3.3, goodness of fit index = .88, and root mean-square error of approximation = .05 (p < .001). The Cronbach's α was .78, .80, and .92 for factors 1, 2, and 3, respectively. The test--retest reliability was demonstrated with an intraclass correlation coefficient of .91, indicating adequate measurement stability.
Conclusion
The 16-item ESES-I has acceptable validity and reliability; however, a broader application of the scale requires further testing in different populations to confirm its external validity.
9.The Indonesian Version of the Exercise Self-Efficacy Scale: Crosscultural Adaptation and Psychometric Testing *
Arif R. HAKIM ; Shan-Tair WANG ; Fransiskus X. WIDIANTORO ; Mujib HANNAN ; Chi-Jane WANG ; Suzan J. FETZER
Asian Nursing Research 2020;14(5):300-305
Purpose:
sThe study aimed to translate the Exercise Self-Efficacy Scale (ESES) into Indonesian and test the cultural equivalence, reliability, and validity of the new version for university students.
Methods:
The cross-sectional study recruited 379 Indonesian university students using convenience sampling. Phase 1, a culturally appropriate version of the ESES was developed in the Indonesian language. Phase 2, the psychometric properties were determined through exploratory factor analysis, bootstrap factor analysis, and confirmatory factor analysis. The internal consistency reliability was tested using Cronbach's α, whereas the stability using intraclass correlation coefficient to assess.
Results:
The students' ages ranged from 17 to 39 years, and 65.0% were women. For translation equivalence, the mean item content validity indexes ranged from 3.5 to 4, and all items were understandable. The 16-item scale exhibited cross-cultural appropriateness and readability, with a three-factor model explaining 62.3% of the variance in exercise self-efficacy. A bootstrap analysis using 100 resamples further confirmed the three-factor model. The indices of the good-fit model that used the three-factor by two-stage least squares method were satisfactory, with χ2/df = 3.3, goodness of fit index = .88, and root mean-square error of approximation = .05 (p < .001). The Cronbach's α was .78, .80, and .92 for factors 1, 2, and 3, respectively. The test--retest reliability was demonstrated with an intraclass correlation coefficient of .91, indicating adequate measurement stability.
Conclusion
The 16-item ESES-I has acceptable validity and reliability; however, a broader application of the scale requires further testing in different populations to confirm its external validity.
10.Study on the effectiveness of implementation: the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases.
J ZHANG ; R R JIN ; J J LI ; J L LI ; X W SU ; G J DENG ; S MA ; J ZHAO ; Y P WANG ; F BIAN ; Y M QU ; Z Z SHEN ; Y JIANG ; Y L LIU
Chinese Journal of Epidemiology 2018;39(4):394-400
Objective: To assess the implementation and impact of programs carried out by the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases. Methods: Both sociological and epidemiological methods were used to collect qualitative and quantitative data in November and December, 2016 in order to conduct on process and outcome evaluation of the above mentioned objective. In the meantime, case study was also conducted. Results: All the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases were found well implemented across the country, with health education and health promotion, surveillance and safeguard measures in particular. A government-led and inter-sector coordination and communication mechanism had been well established, with more than 16 non-health departments actively involved. 28.7% of the residents living in the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases were aware of the key messages related to chronic diseases. Among the residents, 72.1% of them consumed vegetables and 53.6% consumed fruits daily, with another 86.9% walked at least 10 minutes per day. Over 70% of the patients with hypertension or diabetes reported that they were taken care of by the Community Health Centers, and above 50% of them were under standardized management. Residents, living in the National Demonstration Areas under higher ranking of implementation scores, were more likely to be aware of relevant knowledge on chronic disease control and prevention (OR=6.591, 95%CI: 5.188-8.373), salt reduction (OR=1.352, 95%CI: 1.151-1.589), oil reduction (OR=1.477, 95%CI: 1.249-1.746) and recommendation on physical activities (OR=1.975, 95%CI: 1.623- 2.403). Conclusion: The implementation of programs carried out by the National Demonstration Areas for Comprehensive Prevention and Control of Non-communicable Diseases had served a local platform for the control and prevention of non-communicable diseases, and thus become an important 'carrier' for chronic disease prevention and control programs in China.
China/epidemiology*
;
Chronic Disease/epidemiology*
;
Delivery of Health Care
;
Health Promotion/organization & administration*
;
Humans
;
National Health Programs
;
Noncommunicable Diseases/prevention & control*
;
Outcome Assessment, Health Care
;
Population Surveillance
;
Preventive Health Services/organization & administration*
;
Program Evaluation
;
Public Health