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Xuan K, Zhang N, Li T, Pang X, Li Q, Zhao T, Wang B, Zha Z, Tang J. Epidemiological Characteristics of Varicella in Anhui Province, China, 2012-2021: Surveillance Study. JMIR Public Health Surveill 2024; 10:e50673. [PMID: 38579276 PMCID: PMC11031691 DOI: 10.2196/50673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/08/2023] [Accepted: 03/01/2024] [Indexed: 04/07/2024] Open
Abstract
BACKGROUND Varicella is a mild, self-limited disease caused by varicella-zoster virus (VZV) infection. Recently, the disease burden of varicella has been gradually increasing in China; however, the epidemiological characteristics of varicella have not been reported for Anhui Province. OBJECTIVE The aim of this study was to analyze the epidemiology of varicella in Anhui from 2012 to 2021, which can provide a basis for the future study and formulation of varicella prevention and control policies in the province. METHODS Surveillance data were used to characterize the epidemiology of varicella in Anhui from 2012 to 2021 in terms of population, time, and space. Spatial autocorrelation of varicella was explored using the Moran index (Moran I). The Kulldorff space-time scan statistic was used to analyze the spatiotemporal aggregation of varicella. RESULTS A total of 276,115 cases of varicella were reported from 2012 to 2021 in Anhui, with an average annual incidence of 44.8 per 100,000, and the highest incidence was 81.2 per 100,000 in 2019. The male-to-female ratio of cases was approximately 1.26, which has been gradually decreasing in recent years. The population aged 5-14 years comprised the high-incidence group, although the incidence in the population 30 years and older has gradually increased. Students accounted for the majority of cases, and the proportion of cases in both home-reared children (aged 0-7 years who are not sent to nurseries, daycare centers, or school) and kindergarten children (aged 3-6 years) has changed slightly in recent years. There were two peaks of varicella incidence annually, except for 2020, and the incidence was typically higher in the winter peak than in summer. The incidence of varicella in southern Anhui was higher than that in northern Anhui. The average annual incidence at the county level ranged from 6.61 to 152.14 per 100,000, and the varicella epidemics in 2018-2021 were relatively severe. The spatial and temporal distribution of varicella in Anhui was not random, with a positive spatial autocorrelation found at the county level (Moran I=0.412). There were 11 districts or counties with high-high clusters, mainly distributed in the south of Anhui, and 3 districts or counties with high-low or low-high clusters. Space-time scan analysis identified five possible clusters of areas, and the most likely cluster was distributed in the southeastern region of Anhui. CONCLUSIONS This study comprehensively describes the epidemiology and changing trend of varicella in Anhui from 2012 to 2021. In the future, preventive and control measures should be strengthened for the key populations and regions of varicella.
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Affiliation(s)
- Kun Xuan
- Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui Province, China
| | - Ning Zhang
- Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui Province, China
| | - Tao Li
- Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui Province, China
| | - Xingya Pang
- Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui Province, China
| | - Qingru Li
- Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui Province, China
| | - Tianming Zhao
- School of Health Management, Anhui Medical University, Hefei, China
| | - Binbing Wang
- Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui Province, China
| | - Zhenqiu Zha
- Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui Province, China
| | - Jihai Tang
- Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui Province, China
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Tang J, Xu Q, Zhu C, Xuan K, Li T, Li Q, Pang X, Zha Z, Li J, Qiao L, Xu H, Wu G, Tian Y, Han J, Gao C, Yi J, Qian G, Tian X, Xie L. Immunogenicity of Tetravalent Protein Vaccine SCTV01E-2 against SARS-CoV-2 EG.5 Subvaraint: A Phase 2 Trial. Vaccines (Basel) 2024; 12:175. [PMID: 38400158 PMCID: PMC10893468 DOI: 10.3390/vaccines12020175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/12/2024] [Accepted: 01/18/2024] [Indexed: 02/25/2024] Open
Abstract
The Omicron EG.5 lineage of SARS-CoV-2 is currently on a trajectory to become the dominant strain. This phase 2 study aims to evaluate the immunogenicity of SCTV01E-2, a tetravalent protein vaccine, with a specific emphasis on its immunogenicity against Omicron EG.5, comparing it with its progenitor vaccine, SCTV01E (NCT05933512). As of 12 September 2023, 429 participants aged ≥18 years were randomized into the groups SCTV01E (N = 215) and SCTV01E-2 (N = 214). Both vaccines showed increases in neutralizing antibody (nAb) against Omicron EG.5, with a 5.7-fold increase and a 9.0-fold increase in the SCTV01E and SCTV01E-2 groups 14 days post-vaccination, respectively. The predetermined statistical endpoints were achieved, showing that the geometric mean titer (GMT) of nAb and the seroresponse rate (SRR) against Omicron EG.5 were significantly higher in the SCTV01E-2 group than in the SCTV01E group. Additionally, SCTV01E and SCTV01E-2 induced a 5.5-fold and a 5.9-fold increase in nAb against XBB.1, respectively. Reactogenicity was generally mild and transient. No vaccine-related serious adverse events (SAEs), adverse events of special interest (AESIs), or deaths were reported. In summary, SCTV01E-2 elicited robust neutralizing responses against Omicron EG.5 and XBB.1 without raising safety concerns, highlighting its potential as a versatile COVID-19 vaccine against SARS-CoV-2 variants.
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Affiliation(s)
- Jihai Tang
- Anhui Provincial Center for Disease Control and Prevention, Public Health Research Institute of Anhui Province, Hefei 230601, China; (J.T.); (Q.X.); (K.X.); (T.L.); (Q.L.); (X.P.); (Z.Z.)
| | - Qinghua Xu
- Anhui Provincial Center for Disease Control and Prevention, Public Health Research Institute of Anhui Province, Hefei 230601, China; (J.T.); (Q.X.); (K.X.); (T.L.); (Q.L.); (X.P.); (Z.Z.)
| | - Chaoyin Zhu
- Funan County Center for Disease Control and Prevention, Fuyang 236399, China; (C.Z.); (L.Q.); (G.W.); (Y.T.)
| | - Kun Xuan
- Anhui Provincial Center for Disease Control and Prevention, Public Health Research Institute of Anhui Province, Hefei 230601, China; (J.T.); (Q.X.); (K.X.); (T.L.); (Q.L.); (X.P.); (Z.Z.)
| | - Tao Li
- Anhui Provincial Center for Disease Control and Prevention, Public Health Research Institute of Anhui Province, Hefei 230601, China; (J.T.); (Q.X.); (K.X.); (T.L.); (Q.L.); (X.P.); (Z.Z.)
| | - Qingru Li
- Anhui Provincial Center for Disease Control and Prevention, Public Health Research Institute of Anhui Province, Hefei 230601, China; (J.T.); (Q.X.); (K.X.); (T.L.); (Q.L.); (X.P.); (Z.Z.)
| | - Xingya Pang
- Anhui Provincial Center for Disease Control and Prevention, Public Health Research Institute of Anhui Province, Hefei 230601, China; (J.T.); (Q.X.); (K.X.); (T.L.); (Q.L.); (X.P.); (Z.Z.)
| | - Zhenqiu Zha
- Anhui Provincial Center for Disease Control and Prevention, Public Health Research Institute of Anhui Province, Hefei 230601, China; (J.T.); (Q.X.); (K.X.); (T.L.); (Q.L.); (X.P.); (Z.Z.)
| | - Jinwei Li
- Fuyang Center for Disease Control and Prevention, Fuyang 236030, China; (J.L.); (H.X.)
| | - Liyang Qiao
- Funan County Center for Disease Control and Prevention, Fuyang 236399, China; (C.Z.); (L.Q.); (G.W.); (Y.T.)
| | - Haiyang Xu
- Fuyang Center for Disease Control and Prevention, Fuyang 236030, China; (J.L.); (H.X.)
| | - Gang Wu
- Funan County Center for Disease Control and Prevention, Fuyang 236399, China; (C.Z.); (L.Q.); (G.W.); (Y.T.)
| | - Yan Tian
- Funan County Center for Disease Control and Prevention, Fuyang 236399, China; (C.Z.); (L.Q.); (G.W.); (Y.T.)
| | - Jun Han
- State Key Laboratory of Infectious, Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China;
| | - Cuige Gao
- Beijing Engineering Research Center of Protein and Antibody, Sinocelltech Ltd., Beijing 100176, China; (C.G.); (J.Y.); (G.Q.); (X.T.)
| | - Jiang Yi
- Beijing Engineering Research Center of Protein and Antibody, Sinocelltech Ltd., Beijing 100176, China; (C.G.); (J.Y.); (G.Q.); (X.T.)
| | - Gui Qian
- Beijing Engineering Research Center of Protein and Antibody, Sinocelltech Ltd., Beijing 100176, China; (C.G.); (J.Y.); (G.Q.); (X.T.)
| | - Xuxin Tian
- Beijing Engineering Research Center of Protein and Antibody, Sinocelltech Ltd., Beijing 100176, China; (C.G.); (J.Y.); (G.Q.); (X.T.)
| | - Liangzhi Xie
- Beijing Engineering Research Center of Protein and Antibody, Sinocelltech Ltd., Beijing 100176, China; (C.G.); (J.Y.); (G.Q.); (X.T.)
- Cell Culture Engineering Center, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
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Zhang W, Peng W, Cai J, Jiang Y, Zhou C, Zha Z, Mi J. Residential surrounding greenness is associated with improved lung function in adults: a cross-sectional study in eastern China. BMC Public Health 2023; 23:632. [PMID: 37013488 PMCID: PMC10069091 DOI: 10.1186/s12889-023-15473-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/20/2023] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND While benefits of greenness exposure to health have been reported, findings specific to lung function are inconsistent. The purpose of this study is to assess the correlations of greenness exposure with multiple lung function indicators based on chronic obstructive pulmonary disease (COPD) monitoring database from multiple cities of Anhui province in China. METHODS We assessed the greenness using the annual average of normalized difference vegetation index (NDVI) with a distance of 1000-meter buffer around each local community or village. Three types of lung function indicators were considered, namely indicators of obstructive ventilatory dysfunction (FVC, FEV1, FEV1/FVC, and FEV1/FEV3); an indicator of large-airway dysfunction (PEF); indicators of small-airway dysfunction (FEF25%, FEF50%, FEF75%, MMEF, FEV3, FEV6, and FEV3/FVC). Linear mixed effects model was used to analyze associations of greenness exposure with lung function through adjusting age, sex, educational level, occupation, residence, smoking status, history of tuberculosis, family history of lung disease, indoor air pollution, occupational exposure, PM2.5, and body mass index. RESULTS A total of 2768 participants were recruited for the investigations. An interquartile range (IQR) increase in NDVI was associated with better FVC (153.33mL, 95%CI: 44.07mL, 262.59mL), FEV1 (109.09mL, 95%CI: 30.31mL, 187.88mL), FEV3 (138.04mL, 95%CI: 39.43mL, 236.65mL), FEV6 (145.42mL, 95%CI: 42.36mL, 248.47mL). However, there were no significant associations with PEF, FEF25%, FEF50%, FEF75%, MMEF, FEV1/FVC, FEV1/FEV6, FEV3/FVC. The stratified analysis displayed that an IQR increase in NDVI was related with improved lung function in less than 60 years, females, urban populations, nonsmokers, areas with medium concentrations of PM2.5 and individuals with BMI of less than 28 kg/m2. Sensitivity analyses based on another greenness indice (enhanced vegetation index, EVI) and annual maximum of NDVI remained consistent with the main analysis. CONCLUSIONS Our findings supported that exposure to greenness was strongly related with improved lung function.
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Affiliation(s)
- Wenhao Zhang
- Epidemiology and Health Statistics, School of Public Health, Bengbu Medical College, Bengbu, Anhui, 233000, China
| | - Wenjia Peng
- School of Public Health, Fudan University, Shanghai, China
| | - Jun Cai
- Epidemiology and Health Statistics, School of Public Health, Bengbu Medical College, Bengbu, Anhui, 233000, China
| | - Yuhong Jiang
- Epidemiology and Health Statistics, School of Public Health, Bengbu Medical College, Bengbu, Anhui, 233000, China
| | - Cheng Zhou
- Epidemiology and Health Statistics, School of Public Health, Bengbu Medical College, Bengbu, Anhui, 233000, China
| | - Zhenqiu Zha
- Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, 230601, China.
| | - Jing Mi
- Epidemiology and Health Statistics, School of Public Health, Bengbu Medical College, Bengbu, Anhui, 233000, China.
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Li H, Zhang S, Zhou J, Tong F, Gong J, Zha Z, Li N, Xia C, Li J, Zheng L, Luo P, Han R, Ma H, Lv Y, Zeng H, Zheng R, Cao M, Yang F, Yan X, Sun D, He S, Zhang S, Chen W, He J. Endoscopic Surveillance for Premalignant Esophageal Lesions: A Community-Based Multicenter, Prospective Cohort Study. Clin Gastroenterol Hepatol 2023; 21:653-662.e8. [PMID: 35623589 DOI: 10.1016/j.cgh.2022.04.039] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/19/2022] [Accepted: 04/21/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Mild and moderate dysplasia are major premalignant lesions of esophageal squamous cell carcinoma (ESCC); however, evidence of the progression risk in patients with these conditions is extremely limited. We aimed to assess the incidence and risk factors for advanced neoplasia in patients with mild-moderate dysplasia. METHODS This prospective cohort study included patients with mild-moderate dysplasia from 9 regions in rural China. These patients were identified from a community-based ESCC screening program conducted between 2010 and 2016 and were offered endoscopic surveillance until December 2021. We estimated the incidence of advanced esophageal neoplasia, including severe dysplasia, carcinoma in situ, or ESCC, and identified potential risk factors using the Cox regression model. RESULTS The 1183 patients with mild-moderate dysplasia were followed up over a period of 6.95 years. During follow-up evaluation, 88 patients progressed to advanced neoplasia (7.44%), with an incidence rate of 10.44 per 1000 person-years. The median interval from the progression of mild-moderate dysplasia to advanced neoplasia was 2.39 years (interquartile range, 1.58-4.32 y). A total of 74.47% of patients with mild-moderate dysplasia experienced regression to nondysplasia, and 18.09% showed no lesion progression. Patients with mild-moderate dysplasia who had a family history of esophageal cancer and were age 55 years and older showed 97% higher advanced neoplasia yields than all patients with mild-moderate dysplasia. CONCLUSIONS In a country with a high incidence of ESCC, patients with mild-moderate dysplasia showed an overall risk of advanced neoplasia progression of 1.04% per year. Patients with mild-moderate dysplasia would be recommended for endoscopic surveillance during the first 2 to 3 years.
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Affiliation(s)
- He Li
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Shaokai Zhang
- Department of Cancer Epidemiology, Affiliated Cancer Hospital of Zhengzhou University/Henan Cancer Hospital, Henan Engineering Research Center of Cancer Prevention and Control, Henan International Joint Laboratory of Cancer Prevention, Zhengzhou, China
| | - Jinyi Zhou
- Department for Chronic Non-communicable Diseases Control, Jiangsu Provincial Center for Disease Control and Prevention (Public Health Research Institute of Jiangsu Province), Nanjing, China
| | - Feng Tong
- Department of Preventive Management, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Jiyong Gong
- Department of Preventive Management, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Zhenqiu Zha
- Institute of Chronic Non-communicable Diseases Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | - Ni Li
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Changfa Xia
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Jiang Li
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Liyang Zheng
- Department of Cancer Epidemiology, Affiliated Cancer Hospital of Zhengzhou University/Henan Cancer Hospital, Henan Engineering Research Center of Cancer Prevention and Control, Henan International Joint Laboratory of Cancer Prevention, Zhengzhou, China
| | - Pengfei Luo
- Department for Chronic Non-communicable Diseases Control, Jiangsu Provincial Center for Disease Control and Prevention (Public Health Research Institute of Jiangsu Province), Nanjing, China
| | - Renqing Han
- Department for Chronic Non-communicable Diseases Control, Jiangsu Provincial Center for Disease Control and Prevention (Public Health Research Institute of Jiangsu Province), Nanjing, China
| | - Hengmin Ma
- Department of Preventive Management, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Yili Lv
- Institute of Chronic Non-communicable Diseases Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | - Hongmei Zeng
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Rongshou Zheng
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Maomao Cao
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Fan Yang
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Xinxin Yan
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Dianqin Sun
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Siyi He
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Shaoli Zhang
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Wanqing Chen
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China.
| | - Jie He
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
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Dai D, Xu L, Fang S, Zha Z, Wang H, Liu Z, Lu M. The Increasing Burden of Cancer Among Women and in Rural Areas: A Retrospective Population-Based Study. Inquiry 2023; 60:469580231195311. [PMID: 37658624 PMCID: PMC10475263 DOI: 10.1177/00469580231195311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 09/03/2023]
Abstract
The retrospective study aimed to describe the epidemiological characteristics and trends of cancer in Anhui Province, China between 2010 and 2018. Cancer registry data were analyzed using the Joinpoint regression model to calculate trends in cancer incidence and mortality. Age-standardized incidence rate, calculated based on the world Segi's population (ASIRW) was higher in males (239.34 per 100 000) than in females (157.13 per 100 000), and higher in rural areas (203.98 per 100 000) compared to urban areas (189.93 per 100 000). The ASIRW for males decreased with an AAPC of -3.0%, while that of females showed an upward trend with an AAPC of 2.1%. At the same time, the ASIRW in urban areas decreased with an AAPC of -2.4%, whereas it remained relatively stable in rural areas. Among males, lung cancer was the most prevalent type of cancer, while breast cancer was the most frequent cancer among women. The age-standardized mortality rate according to the world Segi's population (ASMRW) was 115.32 per 100 000. The ASMRW was higher in males (156.70 per 100 000) than in females (75.51 per 100 000), and higher in rural areas (122.18 per 100 000) than urban areas (109.21 per 100 000). Lung cancer accounted for the majority of cancer-associated mortalities in the province. Attention needs to be focused on women and rural areas due to rapidly increasing incidence and mortality rates for cancer. Furthermore, an effective public health response is imperative, encompassing early screening, diagnosis, and treatment of prevalent cancers in high-risk populations and regions. It's crucial to promote healthy lifestyles among the public through health education.
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Affiliation(s)
- Dan Dai
- Anhui Medical University, Hefei, China
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | | | | | - Zhenqiu Zha
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | - Huadong Wang
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | - Zhirong Liu
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | - Manman Lu
- Anhui Medical University, Hefei, China
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Cao M, Li H, Sun D, He S, Yang F, Yan X, Zhang S, Zha Z, Zhou J, Luo P, Gong J, Ma H, Zhang S, Sun X, Xia C, Peng J, Chen W. Assessment of the compliance, influencing factors, and yielding results of liver cancer screening in a high-risk population: A cross-sectional study. Cancer 2022; 128:3653-3662. [PMID: 35996957 DOI: 10.1002/cncr.34418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/05/2022] [Accepted: 07/03/2022] [Indexed: 11/09/2022]
Abstract
BACKGROUND The participation and results for liver cancer screening are rarely reported. The aim of this study was to determine the participation rates and factors affecting participation rates as well as to report the detection rate for liver cancer in an organized screening program. METHODS The organized screening program for liver cancer was conducted in 12 rural sites. The risk of developing liver cancer was initially evaluated for each participant. High-risk individuals were offered α-fetoprotein measurement and ultrasonography examination. Potential risk factors associated with the participation rate were screened by fitted generalized linear mixed logistic regression models through reporting odds ratios (ORs) with 95% CIs. RESULTS A total of 358,662 eligible participants completed the basic surveys, and 54,745 were evaluated to be at high risk of liver cancer. Of these high-risk individuals, 40,543 accepted the screening services. Determinants of participation for screening behavior included older age, being female, being positive for hepatitis B surface antigen, having a family history of liver cancer, chronic depression, and low income. The detection rate for liver cancer was estimated to be 0.41% (95% CI, 0.35-0.48). CONCLUSIONS This study reported several significant factors associated with the screening behaviors for liver cancer. LAY SUMMARY Participation rate and results for liver cancer screening in rural areas are rarely reported. The determinants associated with adherence rates and early detection rate of liver cancer in an organized screening program for liver cancer were assessed. A possible positive correlation between the participation rates and the early detection rate was observed among attendees of screening. These new finds could be beneficial to increasing the participation rate of screening.
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Affiliation(s)
- Maomao Cao
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - He Li
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Dianqin Sun
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Siyi He
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Fan Yang
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Xinxin Yan
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Shaoli Zhang
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Zhenqiu Zha
- Institute of Chronic Non-communicable Diseases Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | - Jinyi Zhou
- Department for Chronic Non-communicable Diseases Control, Jiangsu Provincial Center for Disease Control and Prevention (Public health research institute of Jiangsu Province), Nanjing, China
| | - Pengfei Luo
- Department for Chronic Non-communicable Diseases Control, Jiangsu Provincial Center for Disease Control and Prevention (Public health research institute of Jiangsu Province), Nanjing, China
| | - Jiyong Gong
- Department of Preventive Management, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Hengmin Ma
- Department of Preventive Management, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Shaokai Zhang
- Department of Disease Prevention, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, China
| | - Xibin Sun
- Department of Disease Prevention, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, China
| | - Changfa Xia
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
| | - Ji Peng
- Department of Cancer Prevention and Control, Shenzhen Center for Chronic Disease Control, Shenzhen, China
| | - Wanqing Chen
- Office of Cancer Screening, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College/Chinese Academy of Medical Sciences Key Laboratory for National Cancer Big Data Analysis and Implement, Beijing, China
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Zha Z, Li G, Lv Y, Liu L, He J, Xu W, Dai D, Liu Z, Huang F. The effects of air pollution on the lung cancer mortality in rural areas of eastern China: a multi-region study. Environ Sci Pollut Res Int 2022; 29:45716-45729. [PMID: 35147883 DOI: 10.1007/s11356-022-19027-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/29/2022] [Indexed: 06/14/2023]
Abstract
Recently, the burden of lung cancer (LC) has attracted global attention. Meanwhile, LC has become the leading cause of death in China. Many studies found a strong link between air pollutants and the risk of LC mortality in some large cities, but the results have been inconsistent, and most studies have only focused on the daily effects of six pollutants in large cities, ignoring their potential cumulative effects. This study was to investigate the weekly effects of six air pollutants (CO, NO2, O3, PM2.5, PM10, and SO2) on LC mortality in rural areas of eastern China and to further clarify which population groups were susceptible to air pollution and seasonal trends. First, a generalized additive model was combined with a distributed lag nonlinear model to evaluate the individual impact of air pollution on LC deaths in each area. The random-effect model was then used to pool the associations between air pollutants and LC mortality risk in ten counties or districts. The results showed that six air pollutants had a statistically significant effect on the risk of LC mortality at different lag weeks. The effects of NO2, PM10, and CO on weekly LC mortality were strongest at a cumulative lag of 1, 0, and 1 week, respectively, the maximum cumulative risk ratio (RR) of 1.37 (95%CI: 1.23 to 1.52), 1.30 (95%CI: 1.15 to 1.46), and 1.30 (95%CI: 1.17 to 1.43), with interquartile concentrations increasing. In summary, air pollution was an important factor in LC mortality, and the effect was stronger on males, the elderly, and during cold season. It was suggested that relevant departments should formulate air pollution management measures for the elderly, males, and in different seasons in rural areas and reduce the burden of lung cancer caused by air pollution.
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Affiliation(s)
- Zhenqiu Zha
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China
| | - Guoao Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China
| | - Yili Lv
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China
| | - Lingli Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China
| | - Jialiu He
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China
| | - Wei Xu
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China
| | - Dan Dai
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China
| | - Zhirong Liu
- Anhui Provincial Center for Disease Control and Prevention, Anhui, China.
| | - Fen Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China.
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Li H, Zeng H, Zheng R, Zou X, Cao M, Sun D, Zhou J, Luo P, Jia S, Zha Z, Wang J, Ma H, Sun X, Cao X, Feng S, Fan L, Shi J, Chen W. Association of cancer awareness levels with the risk of cancer in rural China: A population‐based cohort study. Cancer 2020; 126:4563-4571. [PMID: 32780477 DOI: 10.1002/cncr.33029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 02/27/2020] [Accepted: 02/28/2020] [Indexed: 12/24/2022]
Affiliation(s)
- He Li
- National Cancer CenterNational Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Hongmei Zeng
- National Cancer CenterNational Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Rongshou Zheng
- National Cancer CenterNational Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Xiaonong Zou
- National Cancer CenterNational Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Maomao Cao
- National Cancer CenterNational Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Dianqin Sun
- National Cancer CenterNational Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Jinyi Zhou
- Jiangsu Provincial Center for Disease Control and Prevention Nanjing China
| | - Pengfei Luo
- Jiangsu Provincial Center for Disease Control and Prevention Nanjing China
| | - Shangchun Jia
- Anhui Provincial Center for Disease Control and Prevention Hefei China
| | - Zhenqiu Zha
- Anhui Provincial Center for Disease Control and Prevention Hefei China
| | - Jialin Wang
- Shandong Cancer Hospital and Institute Shandong First Medical University and Shandong Academy of Medical Sciences Jinan China
| | - Hengmin Ma
- Shandong Cancer Hospital and Institute Shandong First Medical University and Shandong Academy of Medical Sciences Jinan China
| | - Xibin Sun
- Department of Cancer Epidemiology Henan Office for Cancer Control and ResearchThe Affiliated Cancer Hospital of Zhengzhou UniversityHenan Cancer Hospital Zhengzhou China
| | - Xiaoqin Cao
- Department of Cancer Epidemiology Henan Office for Cancer Control and ResearchThe Affiliated Cancer Hospital of Zhengzhou UniversityHenan Cancer Hospital Zhengzhou China
| | - Shixian Feng
- Henan Provincial Center for Disease Control and Prevention Zhengzhou China
| | - Lei Fan
- Henan Provincial Center for Disease Control and Prevention Zhengzhou China
| | - Jufang Shi
- National Cancer CenterNational Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Wanqing Chen
- National Cancer CenterNational Clinical Research Center for Cancer, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
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9
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Chen W, Li H, Ren J, Zheng R, Shi J, Li J, Cao M, Sun D, He S, Sun X, Cao X, Feng S, Zhou J, Luo P, Zha Z, Jia S, Wang J, Ma H, Zeng H, Canfell K, He J. Selection of high-risk individuals for esophageal cancer screening: A prediction model of esophageal squamous cell carcinoma based on a multicenter screening cohort in rural China. Int J Cancer 2020; 148:329-339. [PMID: 32663318 DOI: 10.1002/ijc.33208] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/27/2020] [Accepted: 06/30/2020] [Indexed: 12/12/2022]
Abstract
The mortality benefit of esophageal squamous cell carcinoma (ESCC) screening has been reported in several studies; however, the results of ESCC screening programs in China are suboptimal. Our study aimed to develop an ESCC risk prediction model to identify high-risk individuals for population-based esophageal cancer screening. In total, 86 745 participants enrolled in a population-based esophageal cancer screening program in rural China between 2007 and 2012 were included in the present study and followed up until December 31, 2015. Models for identifying individuals at risk of ESCC within 3 years were created using logistic regressions. The area under the receiver operating curve (AUC) was determined to estimate the model's overall performance. A total of 298 individuals were diagnosed with ESCC within 3 years after baseline. The model of ESCC included the predictors of age, sex, family history of upper gastrointestinal cancer, smoking status, alarming symptoms of retrosternal pain, back pain or neck pain, consumption of salted food and fresh fruits and disease history of peptic ulcer or esophagitis (AUC of 0.81; 95% confidence interval: 0.78-0.83). Compared to the current prescreening strategy in our program, the cut-off value of 10 in the score-based model could result in 3.11% fewer individuals subjected to endoscopies and present higher sensitivity, slightly higher specificity and lower number needed to screen. This score-based risk prediction model of ESCC based on eight epidemiological risk factors could increase the efficiency of the esophageal cancer screening program in rural China.
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Affiliation(s)
- Wanqing Chen
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - He Li
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiansong Ren
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Rongshou Zheng
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jufang Shi
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiang Li
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Maomao Cao
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dianqin Sun
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Siyi He
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xibin Sun
- Department of Cancer Epidemiology, Henan Office for Cancer Control and Research, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Xiaoqin Cao
- Department of Cancer Epidemiology, Henan Office for Cancer Control and Research, The Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Shixian Feng
- Institute of Chronic Non-communicable Diseases Prevention and Control, Henan Provincial Center for Disease Control and Prevention, Zhengzhou, China
| | - Jinyi Zhou
- Institute of Chronic Non-communicable Diseases Prevention and Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Pengfei Luo
- Institute of Chronic Non-communicable Diseases Prevention and Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Zhenqiu Zha
- Institute of Chronic Non-communicable Diseases Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | - Shangchun Jia
- Institute of Chronic Non-communicable Diseases Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, China
| | - Jialin Wang
- Department of Public Health, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China
| | - Hengmin Ma
- Department of Public Health, Shandong Cancer Hospital Affiliated to Shandong University, Jinan, China
| | - Hongmei Zeng
- Office of Cancer Registry, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Karen Canfell
- Cancer Research Division, Cancer Council NSW, Woolloomooloo, New South Wales, Australia
| | - Jie He
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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10
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Fan J, Cong S, Wang N, Bao H, Wang B, Feng Y, Lv X, Zhang Y, Zha Z, Yu L, Yang T, Wang L, Fang L. Influenza vaccination rate and its association with chronic diseases in China: Results of a national cross-sectional study. Vaccine 2020; 38:2503-2511. [PMID: 32046892 DOI: 10.1016/j.vaccine.2020.01.093] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 01/08/2020] [Accepted: 01/30/2020] [Indexed: 01/01/2023]
Abstract
INTRODUCTION Influenza vaccination is the most effective way to prevent influenza. Few studies on its rate were reported throughout China and for populations with chronic diseases. An estimation of the rates in China was accomplished. METHODS All data were from a national cross-sectional survey of a sample representing the population aged 40 years or older in mainland China in 2014-15. A total of 74,484 individuals with complete self-reported influenza vaccination status were analyzed in 2018-19. RESULTS The overall influenza vaccination rate was 2.4% (95% CI 1.4-3.3) with 1.7% (95% CI 1.2-2.2) for the age group 40-59 years and 3.8% (95% CI 1.6-5.9) for the group ≥60 years. The rate was 4.0% (95% CI 2.0-5.9) among people with a chronic disease. People with asthma and people with emphysema had the highest rates (7.1%, 95% CI 3.2-11.0 and 6.6%, 95% CI 3.6-9.7) while people with chronic obstructive pulmonary disease (COPD) and people with chronic bronchitis had the lower rates (3.6%, 95% CI 2.0-5.2 and 4.8%, 95% CI 2.6-7.0). The rate was the highest among former smokers (3.3%, 95% CI 2.3-4.4) compared to current smokers (1.8%, 95% CI 0.9-2.7) and never smokers (2.5%, 95% CI 1.4-3.6). People living with finance-reimbursed vaccination policy, a positive factor for vaccination, had a higher vaccination rate (11.5%, 95% CI 10.8-12.2) (p < 0.05). People with older age, higher education level, occupation of professionals or technical personnel, living in rural areas or Northern China, former/never smoking were more likely to be vaccinated (p < 0.05). CONCLUSIONS The influenza vaccination rate is low among adults aged ≥40 years, those ≥60 years and those with chronic diseases in China. Reimbursement policy targeting the elderly should be implemented widely and strategies towards patients with chronic diseases need urgent attention to increase the influenza vaccination coverage.
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Affiliation(s)
- Jing Fan
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China
| | - Shu Cong
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China
| | - Ning Wang
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China
| | - Heling Bao
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China
| | - Baohua Wang
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China
| | - Yajing Feng
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China
| | - Xueli Lv
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China
| | - Yang Zhang
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China
| | - Zhenqiu Zha
- Anhui Provincial Center for Disease Control and Prevention, 12560 Fanhua Road, Economic and Technological Development Zone, Hefei 230601, China
| | - Lianzheng Yu
- Liaoning Provincial Center for Disease Control and Prevention, 242 Shayang Road, Heping District, Shenyang 110005, China
| | - Ting Yang
- Center of Respiratory Medicine, China-Japan Friendship Hospital, Yinghuayuan East Road, Chaoyang District, Beijing 100029, China
| | - Linhong Wang
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China
| | - Liwen Fang
- National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 27 Nanwei Road, Xicheng District, Beijing 100050, China.
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11
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Chen Y, Lin S, Sun Y, Guo J, Lu Y, Suen CW, Zhang J, Zha Z, Ho KW, Pan X, Li G. Attenuation of subchondral bone abnormal changes in osteoarthritis by inhibition of SDF-1 signaling. Osteoarthritis Cartilage 2017; 25:986-994. [PMID: 28131784 DOI: 10.1016/j.joca.2017.01.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 12/28/2016] [Accepted: 01/17/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Current conservative treatments for osteoarthritis (OA) are largely symptoms control therapies. Further understanding on the pathological mechanisms of OA is crucial for new pharmacological intervention. OBJECTIVE In this study, we investigated the role of Stromal cell-derived factor-1(SDF-1) in regulating subchondral bone changes during the progression of OA. METHODS Clinical samples of different stages of OA severity were analyzed by histology staining, micro-CT, enzyme-linked immunosorbent assay (ELISA) and western blotting, to compare SDF-1 level in subchondral bone. The effects of SDF-1 on human mesenchymal stem cells (MSCs) osteogenic differentiation were evaluated. In vivo assessment was performed in an anterior cruciate ligament transaction plus medial meniscus resection in the SD rats. The OA rats received continuous infusion of AMD3100 (SDF-1 receptor blocker) in osmotic mini-pump implanted subcutaneously for 6 weeks. These rats were then terminated and subjected to the same in vitro assessments as human OA samples. RESULTS SDF-1 level was significantly elevated in the subchondral bone of human OA samples. In the cell studies, the results showed SDF-1 plays an important role in osteogenic differentiation of MSCs. In the OA animal studies, there were less cartilage damage in the AMD3100-treated group; microCT results showed that the subchondral bone formation was significantly reduced and so did the number of positive Nestin or Osterix cells in the subchondral bone region. CONCLUSIONS Higher level of SDF-1 may induce the subchondral bone abnormal changes in OA and inhibition of SDF-1 signaling could be a potential therapeutic approach for OA.
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Affiliation(s)
- Y Chen
- Institute of Orthopedic Diseases and Department of Orthopedics, The First Affiliated Hospital, Jinan University, Guangzhou, PR China; Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region; The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong, Shenzhen Research Institute, Shenzhen, PR China
| | - S Lin
- Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region; The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong, Shenzhen Research Institute, Shenzhen, PR China
| | - Y Sun
- Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region; The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong, Shenzhen Research Institute, Shenzhen, PR China
| | - J Guo
- Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region
| | - Y Lu
- Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region
| | - C W Suen
- Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region; The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong, Shenzhen Research Institute, Shenzhen, PR China
| | - J Zhang
- Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region; The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong, Shenzhen Research Institute, Shenzhen, PR China
| | - Z Zha
- Institute of Orthopedic Diseases and Department of Orthopedics, The First Affiliated Hospital, Jinan University, Guangzhou, PR China
| | - K W Ho
- Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region.
| | - X Pan
- Department of Orthopaedics and Traumatology, Bao-An District People's Hospital, Shenzhen, PR China
| | - G Li
- Department of Orthopaedics & Traumatology, Li Ka Shing Institute of Health Sciences and Lui Che Woo Institute of Innovative Medicine, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong Special Administrative Region; The CUHK-ACC Space Medicine Centre on Health Maintenance of Musculoskeletal System, The Chinese University of Hong Kong, Shenzhen Research Institute, Shenzhen, PR China; Key Laboratory for Regenerative Medicine, Ministry of Education, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong Special Administrative Region.
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12
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Cohn C, Leung SL, Crosby J, Lafuente B, Zha Z, Teng W, Downs R, Wu X. Lipid-mediated protein functionalization of electrospun polycaprolactone fibers. EXPRESS POLYM LETT 2016; 10:430-437. [PMID: 32206095 DOI: 10.3144/expresspolymlett.2016.40] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In this study, electrospun polycaprolactone (PCL) fibers are plasma-treated and chemically conjugated with cholesteryl succinyl silane (CSS). In addition to Raman spectroscopy, an immobilization study of DiO as a fluorescent probe of lipid membranes provides evidence supporting the CSS coating of plasma-treated PCL fibers. Further, anti-CD20 antibodies are used as a model protein to evaluate the potential of lipid-mediated protein immobilization as a mechanism to functionalize the CSS-PCL fiber scaffolds. Upon anti-CD20 functionalization, the CSS-PCL fiber scaffolds capture Granta-22 cells 2.4 times more than the PCL control does, although the two fiber scaffolds immobilize a comparable amount of anti-CD20. Taken together, results from the present study demonstrate that the CSS coating and CSS-mediated antibody immobilization offers an appealing strategy to functionalize electrospun synthetic polymer fibers and confer cell-specific functions on the fiber scaffolds, which can be mechanically robust but often lack biological functions.
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Affiliation(s)
- C Cohn
- Biomedical Engineering Graduate IDP, University of Arizona, AZ 85721 Tucson, USA
| | - S L Leung
- Aerospace & Mechanical Engineering, University of Arizona, AZ 85721 Tucson, USA
| | - J Crosby
- Biomedical Engineering Graduate IDP, University of Arizona, AZ 85721 Tucson, USA
| | - B Lafuente
- Department of Geosciences, University of Arizona, AZ 85721 Tucson, USA
| | - Z Zha
- Aerospace & Mechanical Engineering, University of Arizona, AZ 85721 Tucson, USA
| | - W Teng
- Aerospace & Mechanical Engineering, University of Arizona, AZ 85721 Tucson, USA
| | - R Downs
- Department of Geosciences, University of Arizona, AZ 85721 Tucson, USA
| | - X Wu
- Biomedical Engineering Graduate IDP, University of Arizona, AZ 85721 Tucson, USA.,Aerospace & Mechanical Engineering, University of Arizona, AZ 85721 Tucson, USA
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13
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Dai S, Shen Z, Zha Z, Leng R, Qin W, Wang C, Chen L, Tian M, Huang Z, Chen G, Cen H, Xue L, Wang J, Lu Y, Cao B, Ye D. Seroprevalence of HIV, syphilis, and hepatitis C virus in the general population of the Liangshan Prefecture, Sichuan Province, China. J Med Virol 2011; 84:1-5. [DOI: 10.1002/jmv.22214] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2011] [Indexed: 11/05/2022]
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14
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Shen WJ, Shen YM, Zha Z, Zhou YT, Xu PC, Song T, Wu YB. [The clinical and pathologic study of embeded supernumerary teeth]. Shanghai Kou Qiang Yi Xue 2001; 10:108-9, 118. [PMID: 14994030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To analyse the clinic and pathologic features of 100 embedded supernumerary teeth, to find out the rule of cystic change of supernumerary teeth and its relationship to malocclusion, and to present the methods of therapy. METHODS Analysis of clinical data, X-ray manifestation,comparison of the findings on operation and pathological changes demonstrated the correct diagnosis of supernumerary teeth. RESULTS On statistics and analysis,66% of the crowns of the supernumerary teeth were showed different sizes of circular photic shades,but only 35% were proved to be cystic change by biopsies. CONCLUSION This study showed that 35% had cystic change among 100 cases,so if the diagnosis can be made in these cases with indication of operation the extraction of the supernumerary teeth must be done as soon as possible.
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Affiliation(s)
- W J Shen
- Department of Oral Surgery, Shanghai Xuhui Dental Center, Shanghai 200032, China
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15
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Wang D, Zha Z. Treatment of traumatic defect of the tibia with two exposed fractured ends--reduction and lengthening at the proximal metaphysics of tibia. Curr Med Sci 1997; 17:187-9. [PMID: 9812775 DOI: 10.1007/bf02888299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/1997] [Indexed: 10/19/2022]
Abstract
From Jan. 1995 to June 1996, 6 cases of traumatic defect of the tibia were treated by remodeling and reduction of fractured ends and osteotomy and distraction at the proximal metaphysics of the tibia. In 6 patients, aged 19 to 54, with the limb-length discrepancy being at least 3 to 4.5 cm, the tibia was lengthened by 3 cm in 3 cases, 4 to 4.5 cm in 3 cases. The consolidation and maturation of the bone were accomplished within 3 to 6 months. The authors believe that this procedure is simple, less invasive and involves no bone-graft.
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Affiliation(s)
- D Wang
- Department of Orthopedics, Overseas Hospital, Medical College of Jinan University, Guangzhou
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16
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Abstract
The clinical significance of the expression of lymphoid-associated antigens in leukemic cells was studied in 66 children with newly diagnosed acute myeloid leukemia (AML). Among 66 AML cases, 17% were CD7-positive, 15% were CD19-positive, 8% were CD2-positive, and 5% were CD10-positive. In 23 (35%) of the 66 AML cases, at least one lymphoid-associated antigen was expressed in the leukemic cells. When the clinical features and laboratory findings were compared at diagnosis between the 23 Ly+ and the 43 Ly- AML cases, no statistically significant difference was found. The expression of CD34 was significantly more frequent in Ly+ AML cases (91%) than in Ly- AML cases (31%). Chromosomal analysis revealed t(8;21) in 6 of the 21 Ly+ AML cases examined. No other specific chromosome aberration was noted. The 3-year event-free survival rates of Ly+ AML cases and Ly- AML cases were 34% +/- 12% and 26% +/- 8%, respectively. There was no statistically significant difference between the two groups. Further studies are required to determine the prognostic significance of lymphoid-associated antigen expression.
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Affiliation(s)
- S Kawai
- Department of Pediatrics, Aichi Medical University, Nagoya, Japan
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Kawai S, Fujimoto T, Zha Z, Asami K, Oka T, Kaneko Y, Takaue Y, Ninomiya T, Nishikawa K, Tsuchiya T. [Results of the CCLSG high risk ALL 874 protocol in childhood acute lymphoblastic leukemia. Children's Cancer and Leukemia Study Group]. Rinsho Ketsueki 1993; 34:128-36. [PMID: 8492409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
One hundred and eighty eight children with acute lymphoblastic leukemia (ALL) were treated in a Children's Cancer and Leukemia Study Group high-risk ALL 874 study from April, 1987 to September, 1991. These patients received a four-drug induction regimen followed by the early consolidation regimen, cranial irradiation at 6 months of remission and three years of continuation therapy with rotational administration of four drugs. The patients were randomized into two regimens. In regimen A, the consolidation chemotherapy consisted of the intermediate dose cytosine arabinoside (Ara-C), cyclophosphamide (CPM) plus 6MP, and in regimen B, it consisted of high-dose Ara-C plus CPM. Regimen A was given to 106 patients and 82 patients received regimen B. The complete remission induction rate for regimen A and B was 89.4% (93/104) and 98.7% (78/79), respectively. The 3-year event-free-survival (EFS) rate was 70.6% for regimen A, which was higher than the 56.7% for regimen B. The 3-year EFS rate was 44.4% for the 53 patients with an initial leukocyte count > or = 10 x 10(4)/microliters and 72.2% for 132 patients with a leukocyte count < 10 x 10(4)/microliter. We considered that Ara-C plus L-asp, added to the conventional high-risk ALL 811 protocol, improved the prognosis of the high risk ALL patients. However, further intensive chemotherapy was required for improvement of the outcome of the patients with hyperleukocytosis (> or = 10 x 10(4)/microliters).
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Affiliation(s)
- S Kawai
- Department of Pediatrics, Aichi Medical University
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Kawai S, Zha Z, Yamamoto Y, Nakadate H, Kawakami K, Kikuta A, Utsumi J, Nishikawa K, Mimaya J, Miyake M. [Analysis of cytoplasmic antigens in acute leukemia by flow cytometry]. Rinsho Ketsueki 1993; 34:13-20. [PMID: 8450602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The expression of cytoplasmic antigens in 77 cases of acute leukemia were analyzed by flow cytometry using the following monoclonal antibodies: CD3, CD22, anti-myeloperoxidase (MPO-7) and anti-mu-heavy chain. CD22 antigen was detected in the cytoplasm of all non-T-ALL patients excluding one not-tested patient. In two patients with unclassified ALL, surface CD22 antigen was not expressed but cytoplasmic CD22 antigen was strongly expressed. Three out of 9 patients with common ALL were cytoplasmic mu-heavy chain-positive, so these patients were diagnosed as Pre-B ALL. In four out of 8 patients with T-ALL, CD3 antigen was not expressed on the cell surface membrane. However all of T-ALL patients excluding one non-tested patient were cytoplasmic CD3-positive. The cytoplasmic expression of myeloperoxidase antigen was detected in twenty out of 21 patients with acute non-lymphoblastic leukemia (ANLL). One megakaryocytic leukemia patient was MPO-negative. In two ANLL patients, the percentage of MPO for conventional cytochemical staining was undetectable or low, but MPO antigens were positive (77% and 70%) for flow cytometric analysis. All of 46 non-T ALL patients were cytoplasmic MPO-negative, however 4 out of 10 T-ALL patients were cytoplasmic MPO-positive. The study proved that the analysis of cytoplasmic CD3, CD22, mu-chain and MPO antigens were very useful to define the cell lineage of leukemia and to classify ALL and ANLL. It is necessary to study further whether the expression of MPO in the cytoplasm of T-ALL was non-specific reaction or whether MPO precursors are expressed in the cytoplasm of T-ALL.
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Affiliation(s)
- S Kawai
- Department of Pediatrics, Aichi Medical University
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Tsurusawa M, Ito M, Zha Z, Kawai S, Takasaki Y, Fujimoto T. Cell-cycle-associated expressions of proliferating cell nuclear antigen and Ki-67 reactive antigen of bone marrow blast cells in childhood acute leukemia. Leukemia 1992; 6:669-74. [PMID: 1352561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
To investigate the growth characteristics of human leukemia cells, the expression of proliferation-associated nuclear antigens was examined in relation to cell cycle phases in marrow blast cells obtained from 37 untreated children with acute leukemia. Ki-67 monoclonal antibody reactive antigen and proliferating cell nuclear antigen (PCNA) were measured by the simultaneous flow cytometric analysis of DNA and nuclear antigens. The percentage of PCNA-positive cells was always higher than that of Ki-67-positive cells in individual patients. The level of PCNA was greatly increased in G1 or early S phase, but was generally stable in S and G2 phases. Accordingly, most of the cells in the proliferative compartments (greater than 2C DNA) showed a high expression of PCNA. In contrast, expression of Ki-67 antigen varied greatly from patient to patient, and differed significantly in different subtypes of the disease. The level of Ki-67 antigen increased with the cell cycle progression, showing maximum expression in late S and G2 phases. However, in most of the patients, a distinct population of Ki-67-negative cells was found not only in G1 phase, but also in the proliferative compartments. These results appear to reflect differences in the proliferative activity of bone marrow blast cells in childhood acute leukemia.
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Affiliation(s)
- M Tsurusawa
- Department of Pediatrics, Aichi Medical University, Japan
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Ito M, Tsurusawa M, Zha Z, Kawai S, Takasaki Y, Fujimoto T. Cell proliferation in childhood acute leukemia. Comparison of Ki-67 and proliferating cell nuclear antigen immunocytochemical and DNA flow cytometric analysis. Cancer 1992; 69:2176-82. [PMID: 1347483 DOI: 10.1002/1097-0142(19920415)69:8<2176::aid-cncr2820690827>3.0.co;2-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The proliferative activity of bone marrow leukemia cells was determined by DNA flow cytometric (FCM) analysis and labeling index (LI) of Ki-67 monoclonal antibodies and proliferating cell nuclear antigen (PCNA) autoantibodies in 73 children with acute leukemia. LI of Ki-67 varied greatly from patient to patient (range, 0.4% to 42.2%; mean, 18.8%) and differed significantly between acute lymphoblastic leukemia (ALL) and acute nonlymphoblastic leukemia (ANLL). In ALL, the Ki-67 LI showed a positive correlation with the S-phase fraction (SPF) determined by DNA FCM analysis, whereas, in ANLL, there was a discrepancy between the Ki-67 LI and SPF. In contrast, LI of PCNA varied less among the patients (range, 57.2% to 100%; mean, 90.3%), and the value was always higher than that of the Ki-67 LI in individual patients. A significant relationship between PCNA LI and the percentage of blast cells was found in peripheral blood leukocytes from patients with leukemia. These results suggest that the Ki-67 LI reflects differences in the proliferative activity depending on the subtype of the disease and that the PCNA LI is useful as a marker of proliferating cells.
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Affiliation(s)
- M Ito
- Department of Pediatrics, Children's Cancer and Leukemia Study Group (CCLSG), Aichi Medical University, Aichi-ken, Japan
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Zhou Z, Lan T, Zha Z, Wang Y, Yang Z. [Influences of new synthetic drug vesnarinone on circulatory and respiratory function of dogs]. Hua Xi Yi Ke Da Xue Xue Bao 1991; 22:137-9. [PMID: 1786948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The purpose of this study was to investigate the influences of vesnarinone, newly synthesized in the School of Pharmacy, West China University of Medical Sciences in 1985, on the circulatory and respiratory functions of dogs. Eight dogs were anesthetized with 3% sodium pentobarbital. Vesnarinone (2 mg/kg), dimethyl sulphoxide (the solvent which was needed to prepare solution of OPC-8212), and 0.9% NaCl (normal control) was given separately according to the arrangement of Latin square. The ECG, blood flow, blood pressure and respiration were measured and recorded for 1-15 minutes. Vesnarinone increased the blood flow in the common carotid artery with no significant changes in blood pressure, heart rate, or respiration. These results suggest that OPC-8212 has positive inotropic effect but no effect on the heart rate in anesthetized dogs.
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Cheng J, Meng P, Lan T, Zha Z. [Research and application of SUPER-1 intellectural instrument used in physiology laboratory]. Hua Xi Yi Ke Da Xue Xue Bao 1991; 22:107-10. [PMID: 1774026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Research work for making a biomedical signal processing instrument based on the APPLE-II computer is reported in this paper. According to the theory of the computer, two interface boards were designed as the hardware of the instrument. The memorizing waveform program was designed as the main program in the software system. Through a functional extended program, also called software inter face, more than ten programs especially for physiology can be easily linked to the main program. with the combination of both the software and hard ware several parameters of the instrument, such as sampling speed, gain of the amplifier, etc. can be controlled by a closed loop. This instrument is available in the physiology laboratory to replace oscilloscope, recorder, stimulator simultaneously. The functions of the instrument are stronger than those of the conventional instruments.
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Zha Z, Lan T, Zhou Z, Yang Z. [Effect of a new positive inotropic agent (OPC-8212) on intracellular potential of isolated canine ventricular papillary muscle]. Hua Xi Yi Ke Da Xue Xue Bao 1990; 21:159-62. [PMID: 2391096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This study adopted intracellular microelectrode technic to observe the effect of OPC-8212 (Vesnarinone) on intracellular potential of isolated canine ventricular papillary muscle. The record and data processing were completed by computerized intellective instrument designed by ourselves. The results of intracellular record in 14 canine ventricular papillary muscle showed no significant change in the resting potential (RP), amplitude of action potential (APA) and maximum depolarize velocity of 0 phase (Vmax). But significantly increased whole duration of action potential (APT). The duration of repolarization to 1/3 (APD 1/3) and to 2/3 (APD 2/3) significantly increased too. The plateau phase raised. These results suggest that K+ permeability at resting myocardiac cell membrane may have not been effected by OPC-8212. Activation of the fast sodium channel may have not been effected too. The results of our studies also suggest that inward flow of Ca2+ increased. The delayed outward K+ (Ik) and the inward, rectifying K+ current (Ik1) possible decreased. Thus, the OPC-8212 might become a nonglucoside and noncatecholamine new positive inotropic drug.
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