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Yang T, Qing L, Wang Y, Bu Q, Zhang M, Tan B, Chen X, Deng D. Influence of HIV/AIDS knowledge on HIV testing behavior among young students (14-27 years) with a history of sexual activity: chain mediation analysis of social discrimination, self-efficacy, and sexual behavior characteristics. AIDS Care 2024; 36:561-568. [PMID: 38088933 DOI: 10.1080/09540121.2023.2280460] [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: 03/03/2023] [Accepted: 10/31/2023] [Indexed: 03/08/2024]
Abstract
This study used a self-administered questionnaire to investigate the relationship between HIV/AIDS knowledge, social discrimination, HIV self-efficacy, sexual behavioral characteristics and HIV testing behavior among young students with a history of sexual activity in Chongqing. Propensity score matching was used to construct a control group with similar demographic characteristics to the HIV testing group, only without HIV testing behaviors. Structural equation modeling was used to conduct chain-mediated effect analysis. The HIV testing rate among young students with a history of sexual behavior was 17.16%. Young students with HIV testing behavior had higher levels of HIV/AIDS knowledge, lower social discrimination, better self-efficacy, and no difference in sexual behavior characteristic scores between the two groups (P = 0.062). The mediated effect values of social discrimination and self-efficacy were 0.022 and 0.063, respectively, while their chain mediated effect value was 0.007. There was no mediated effect of sexual behavior characteristics. The level of young students' HIV/AIDS knowledge does not directly influence their HIV testing behavior but plays a complete chain mediating effect on HIV testing behavior through social discrimination and self-efficacy. HIV testing behavior should be promoted through the perspectives of enhancing HIV/AIDS knowledge level, reducing social discrimination, and improving self-efficacy.
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Affiliation(s)
- Tong Yang
- Shapingba District Center for Disease Control and Prevention, Chongqing, People's Republic of China
- Department of Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, People's Republic of China
| | - Liyuan Qing
- Jiulongpo District Center for Disease Control and Prevention, Chongqing, People's Republic of China
- Department of Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, People's Republic of China
| | - Yunna Wang
- Department of Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, People's Republic of China
| | - Qingqing Bu
- Department of Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, People's Republic of China
| | - Meng Zhang
- Department of Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, People's Republic of China
| | - Bo Tan
- Department of Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, People's Republic of China
| | - Xinrui Chen
- Department of Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, People's Republic of China
| | - Dan Deng
- Department of Health Statistics, School of Public Health, Chongqing Medical University, Chongqing, People's Republic of China
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Zhang M, Chen X, Bu Q, Tan B, Yang T, Qing L, Wang Y, Deng D. Spatiotemporal dynamics and influencing factors of human brucellosis in Mainland China from 2005-2021. BMC Infect Dis 2024; 24:76. [PMID: 38212685 PMCID: PMC10785479 DOI: 10.1186/s12879-023-08858-w] [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: 09/29/2023] [Accepted: 11/30/2023] [Indexed: 01/13/2024] Open
Abstract
BACKGROUND Brucellosis poses a significant public health concern. This study explores the spatial and temporal dynamic evolution of human brucellosis in China and analyses the spatial heterogeneity of the influencing factors related to the incidence of human brucellosis at the provincial level. METHODS The Join-point model, centre of gravity migration model and spatial autocorrelation analysis were employed to evaluate potential changes in the spatial and temporal distribution of human brucellosis in mainland China from 2005 to 2021. Ordinary Least Squares (OLS), Geographically Weighted Regression (GWR), and Multi-scale Geographically Weighted Regression (MGWR) models were constructed to analyze the spatial and temporal correlation between the incidence rate of human brucellosis and meteorological and social factors. RESULTS From 2005 to 2021, human brucellosis in China showed a consistent upward trend. The incidence rate rose more rapidly in South, Central, and Southwest China, leading to a shift in the center of gravity from the North to the Southwest, as illustrated in the migration trajectory diagram. Strong spatial aggregation was observed. The MGWR model outperformed others. Spatio-temporal plots indicated that lower mean annual temperatures and increased beef, mutton, and milk production significantly correlated with higher brucellosis incidence. Cities like Guangxi and Guangdong were more affected by low temperatures, while Xinjiang and Tibet were influenced more by beef and milk production. Inner Mongolia and Heilongjiang were more affected by mutton production. Importantly, an increase in regional GDP and health expenditure exerted a notable protective effect against human brucellosis incidence. CONCLUSIONS Human brucellosis remains a pervasive challenge. Meteorological and social factors significantly influence its incidence in a spatiotemporally specific manner. Tailored prevention strategies should be region-specific, providing valuable insights for effective brucellosis control measures.
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Affiliation(s)
- Meng Zhang
- Department of Epidemiology and Health Statistics, Chongqing Medical University of Public Health, Chongqing, 500000, China
| | - Xinrui Chen
- Department of Epidemiology and Health Statistics, Chongqing Medical University of Public Health, Chongqing, 500000, China
| | - Qingqing Bu
- Department of Epidemiology and Health Statistics, Chongqing Medical University of Public Health, Chongqing, 500000, China
| | - Bo Tan
- Department of Epidemiology and Health Statistics, Chongqing Medical University of Public Health, Chongqing, 500000, China
| | - Tong Yang
- Department of Epidemiology and Health Statistics, Chongqing Medical University of Public Health, Chongqing, 500000, China
| | - Liyuan Qing
- Department of Epidemiology and Health Statistics, Chongqing Medical University of Public Health, Chongqing, 500000, China
| | - Yunna Wang
- Department of Epidemiology and Health Statistics, Chongqing Medical University of Public Health, Chongqing, 500000, China
| | - Dan Deng
- Department of Epidemiology and Health Statistics, Chongqing Medical University of Public Health, Chongqing, 500000, China.
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Wang Y, Xiao D, Wu M, Qing L, Yang T, Xiao P, Deng D. Epidemiological Characteristics and Factors Associated with Cure of Leprosy in Chongqing, China, from 1949 to 2019. Am J Trop Med Hyg 2023; 108:165-173. [PMID: 36410327 PMCID: PMC9833069 DOI: 10.4269/ajtmh.22-0474] [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: 07/25/2022] [Accepted: 09/15/2022] [Indexed: 11/23/2022] Open
Abstract
Chongqing is one of the focuses of leprosy control in China. Although leprosy control in Chongqing has achieved remarkable results over the years, there are also some problems, such as recurrent epidemics and insufficient early detection in some areas. The aim of this study was to analyze the epidemiological characteristics of leprosy in Chongqing, from 1949 to 2019 and explore the potential factors sociated with cure of leprosy to provide a basis for improving leprosy prevention and treatment strategies in Chongqing. Epidemiological indicators such as incidence and prevalence rates were used to evaluate the prevalence of leprosy. The epidemiological characteristics and control situation of leprosy in patients were analyzed using demographic characteristics, diagnosis, and treatment. Survival analysis was conducted to explore factors associated with the cure of leprosy. From 1949 to 2019, 3,703 cases of leprosy were registered in Chongqing. The incidence of leprosy in the city peaked at 0.853/105 in 1960 and remained below 0.100/105 after 2003. The number of high incidence areas decreased significantly, but they were mainly concentrated in the northeast and southeast regions. The early detection rate increased yearly from 1949 to 2019, and the rate of grade 2 disability ranged from 38.2% to 21.7%, with a fluctuating downward trend after 1960. Male, young age, employment as a farmer, delayed diagnosis, and multibacillary leprosy were risk factors for leprosy cure. Chongqing should continue to strengthen leprosy monitoring to improve the early detection of leprosy and focus on sociated risk factors to carry out multiple strategies.
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Affiliation(s)
- Yunna Wang
- School of Public Health, Chongqing Medical University, Chongqing City, China
| | - Dayong Xiao
- Chongqing Center for Disease Control and Prevention, Chongqing City, China
| | - Mingyue Wu
- Information Center of West China Hospital, Sichuan University, Chengdu, China
| | - Liyuan Qing
- School of Public Health, Chongqing Medical University, Chongqing City, China
| | - Tong Yang
- School of Public Health, Chongqing Medical University, Chongqing City, China
| | - Peng Xiao
- Chongqing Center for Disease Control and Prevention, Chongqing City, China
| | - Dan Deng
- School of Public Health, Chongqing Medical University, Chongqing City, China
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Peng X, Yin J, Wang Y, Chen X, Qing L, Wang Y, Yang T, Deng D. Retirement and elderly health in China: Based on propensity score matching. Front Public Health 2022; 10:790377. [PMID: 36407989 PMCID: PMC9669292 DOI: 10.3389/fpubh.2022.790377] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 10/17/2022] [Indexed: 11/05/2022] Open
Abstract
Background The relationship between retirement and health is important to the formulation of retirement related policies but is a controversial topic, perhaps because selection bias has not been well-addressed in previous studies through traditional analysis methods. Using data from the China Health and Retirement Longitudinal Study (CHARLS), this study explored the potential impact of retirement on the health of elderly Chinese individuals, adjusting for selection bias. Methods We balanced the baseline differences between retirement groups and working groups based on nearest neighbor matching and genetic matching with a generalized boosted model (GBM), and regression analysis was used to evaluate the impact of retirement on the health of elderly individuals. Results No significant difference was found in any of the covariates between the two groups after matching. Genetic matching performed better than nearest neighbor matching in balancing the covariates. Compared to the working group, the retirement group had a 0.78 (95% CI: 0.65-0.94, P = 0.026) times higher probability of self-reported physical pain, a 0.76 (95% CI: 0.62-0.93, P = 0.023) times higher probability of depression, and a 0.57-point (95% CI: 0.37-0.78, P < 0.001) improvement in cognitive status score. Among male, the retirement group had a 0.89-point (95% CI: 0.45-1.33, P < 0.001) improvement in cognitive status score for low education, a 0.65 (95% CI: 0.46-0.92, P = 0.042) times higher probability of self-reported physical pain for middle education. For female with low education, the cognitive status of the retirement group was significantly higher by 0.99 points (95% CI: 0.42-1.55, P = 0.004), the probability of depression was 0.56 (95% CI: 0.36-0.87, P = 0.031) times higher in the retirement group than in the working group. There was no difference for the middle and high education. Conclusion Retirement can exert a beneficial effect on the health of elderly individuals. Therefore, the government and relevant departments should consider this potential effect when instituting policies that delay retirement.
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Affiliation(s)
- Xin Peng
- Department of Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Jin Yin
- Department of Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Yi Wang
- Public Health Center, Tianfu New Area Disease Prevention and Control Center, Sichuan, China
| | - Xinrui Chen
- Department of Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Liyuan Qing
- Department of Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Yunna Wang
- Department of Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Tong Yang
- Department of Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, China
| | - Dan Deng
- Department of Health Statistics, School of Public Health and Management, Chongqing Medical University, Chongqing, China
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Qing L, Wang Y, Yang T, Chen X, Zhang M, Bu Q, Tan B, Deng D. Study on HIV/AIDS knowledge, sexual attitudes, sexual behaviors, and preventive services among young students in Chongqing, China. Front Public Health 2022; 10:982727. [PMID: 36299747 PMCID: PMC9589276 DOI: 10.3389/fpubh.2022.982727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 09/23/2022] [Indexed: 01/25/2023] Open
Abstract
Objectives This study aimed to describe the HIV/AIDS knowledge, sexual attitudes, and sexual behaviors of young students (14-25 years) in Chongqing, China, and to examine their use of preventive services and related factors. Method A cross-sectional study was conducted with students from 67 schools from December 2019 to June 2021. The chi-square test, non-parametric test to assess the differences between respondents with different characteristics in the above aspects. Additionally, univariate and multivariate logistic regression analyses were conducted to examine factors associated with the awareness of HIV/AIDS knowledge. Confidence intervals without crossover or P < 0.05 was considered significant. Results A total of 31,782 participants were included in the study. A total of 62.62% of the respondents were considered to be aware of basic HIV/AIDS knowledge, including 78.44%, 62.15%, and 52.08% in undergraduate colleges, junior colleges and secondary vocational schools, respectively. In total, 60.96% of males and 29.42% of females accepted premarital sex, 15.49% of males and 6.18% of females reported being sexually experienced, and only 57.18% of the students used condoms every time they had sex. The percentage of condom use among students who were aware of HIV/AIDS knowledge was higher than that among students who were not aware. A total of 85.60% of the students thought they needed HIV/AIDS prevention and control knowledge, and 94.60% thought more health education activities on HIV/AIDS prevention needed to be conducted in schools. Entrance education, lectures or consultation hotlines, WeChat official accounts and other media platforms were rated as the most acceptable HIV/AIDS prevention education methods. Conclusion These respondents lacked knowledge about HIV/AIDS, and an increasing number of students show an open attitude toward premarital sex and engage in risky sexual behaviors. It is urgent to enhance and widely disseminate comprehensive HIV/AIDS and sexual health education in multiple formats.
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Meng L, Wei Z, Jianye W, Yaoguang Z, Peng Z, Limin L, Jianwei L, Qing L, Zhongqing W, Tie Z, Zhihui X, Wen W, Jiayi L, Deyi L. Clinical outcomes of sacral neuromodulation in non-neurogenic, non-obstructive dysuria: A retrospective, multicentre study in China. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33572-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Lin D, Wen Y, Zhang Y, Chen Q, Pan Y, Qing L, Gu J. AB0347 INCREASING TO OPTIMAL METHOTREXATE DOSE MIGHT BE A BETTER TRADITIONAL DMARD STRATEGY IN RA TREATMENTS: A RANDOMIZED CASE-CONTROL TRIAL OF HAKKA PEOPLE IN SOUTHERN CHINA. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:The optimal methotrexate (MTX) dose is defined as 0.3mg/kg/week or ≥ 20mg/week at 6 months. [1] Considering average weight of Chinese, [2] the optimal MTX should be >15mg/w. However, not more than 30% in 25191 RA cases ever had MTX treatment in CREDIT (Chinese Registry of Rheumatoid arthritis). [3] The biggest concern is side effects of MTX. Our study is to investigate whether increasing MTX would get better results accompanied with more side effects to Chinese people.Objectives:Hakka people have the purest genes of the majority people-Han in China. It is planned to recruit 160 RA patients in Meizhou, where is a gathering place of Hakka people.Methods:The RA volunteers had no relief with 10 mg/w oral dose of MTX with/without other 1-2 inadequate dose of DMARDs for at least 3 months. They were randomly divided into 1:1 groups*. The experimental group would be treated with original DMARDs and incremental MTX (gradually increased to the optimal oral dose (0.3 mg/k/w) in the first 12 weeks and folic acid (the dose adjusted on demand with range from 5 mg/w to 5mg tid). While the control group would be treated with original MTX dose(10mg/w) but incremental original DMARDs(gradually increased to the maximum dose in the first 12 weeks). The two groups would keep the treatment at 12thweek last to the 36thweek, and the efficacy and safety indexes would be evaluated during the whole study.Results:1)We planned to recruit 160 RA patients in our study. 46 Hakka RA patients were enrolled in the study so far. 2 of 46 finished the 24thweek visit and 24 finished the 36thweek visit. The average age is 54.2± 9.3 years old, the average weight is 59.1±11.1kg, and the female to male ratio is 41:5.2)The average Folic acid dose is 14.4±9.5mg/w in the experimental group at the 12thweek.3)The morning stiffness time, PGA, PhGA, HAQ, DAS28 were better in experimental group after 12 weeks though slightly worse during 0-12 weeks. 100%(12) patients in experimental group, while 66.67%(8/12) in control group reach ACR20.4) Only 1 case(5.9%,1/23)had adverse event while 6 cases (26%,6/23) occurred adverse events. All events were mild level. 1 case (4.2%,1/23) in control group withdrew from the study because the disease was getting worse during 0-24 weeks.Conclusion:Hakka patients in China might have better outcomes due to increasing MTX to the 0.3mg/kg/w dose than increasing the other DMARDs. Therefore, We recommended the Chinses patients choose MTX as first incremental DMARD. The appropriate dose of Folic acid plus with the optimal dose of MTX in our study is higher than previous studies (such as 13.0±4.8mg/w reported by Gaujoux-Viala, 2018[1]). We recommended Chinese patients take 15mg/w folic acid to prevent MTX side effects in view of lower folic acid level in Chinese population.[3]References:[1]Gaujoux-Viala C, Rincheval N, Dougados M, et al. Optimal methotrexate dose is associated with better clinical outcomes than non-optimal dose in daily practice: results from the ESPOIR early arthritis cohort. Ann Rheum Dis. 2017 Dec;76(12):2054-2060.[2]Nan Jiang, Mengtao Li, Yanhong Wang, et al. Baseline characteristics and treatments among patients with rheumatoid arthritis: the CREDIT study in China, 2016-2018. Ann Rheum Dis. 2019 Jun; 78 (Suppl 2) 1404-1405.[3]He Y, Pan A, Hu FB,et al. Folic acid supplementation, birth defects, and adverse pregnancy outcomes in Chinese women: a population-based mega-cohort study, Lancet, 2016 Oct,Volume 388, Number 1, pp. S91-S91-(1)Disclosure of Interests:None declared
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Qiao JT, Cui C, Qing L, Wang LS, He TY, Yan F, Liu FQ, Shen YH, Hou XG, Chen L. Activation of the STING-IRF3 pathway promotes hepatocyte inflammation, apoptosis and induces metabolic disorders in nonalcoholic fatty liver disease. Metabolism 2018; 81:13-24. [PMID: 29106945 DOI: 10.1016/j.metabol.2017.09.010] [Citation(s) in RCA: 145] [Impact Index Per Article: 24.2] [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: 07/06/2017] [Revised: 09/12/2017] [Accepted: 09/19/2017] [Indexed: 12/25/2022]
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is a common result of obesity and metabolic syndrome. Hepatocyte injury and metabolic disorders are hallmarks of NAFLD. Stimulator of interferon genes (STING) and its downstream factor interferon regulatory factor 3 (IRF3) trigger inflammatory reaction in response to the presence of cytosolic DNA. STING has recently been shown to play an important role in early alcoholic liver disease. However, little is known about the role of STING-IRF3 pathway in hepatocyte injury. Here, we aimed to examine the effect of STING-IRF3 pathway on hepatocyte metabolism, inflammation and apoptosis. METHODS We examined the activation of the STING-IRF3 pathway, a high-fat diet (HFD)-induced obese mouse model, and determined the role of this pathway in a free fatty acid (FFA)-induced hepatocyte inflammatory response, injury, and dysfunction in L-O2 human liver cells. RESULTS STING and IRF3 were upregulated in livers of HFD-fed mice and in FFA-induced L-O2 cells. Knocking down either STING or IRF3 led to a significant reduction in FFA-induced hepatic inflammation and apoptosis, as evidenced by modulation of the nuclear factor κB (NF-κB) signaling pathway, inflammatory cytokines, and apoptotic signaling. Additionally, STING/IRF3 knockdown enhanced glycogen storage and alleviated lipid accumulation, which were found to be associated with increased expression of hepatic enzymes in glycolysis and lipid catabolism, and attenuated expression of hepatic enzymes in gluconeogenesis and lipid synthesis. CONCLUSIONS Our results suggest that the STING-IRF3 pathway promotes hepatocyte injury and dysfunction by inducing inflammation and apoptosis and by disturbing glucose and lipid metabolism. This pathway may be a novel therapeutic target for preventing NAFLD development and progression.
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Affiliation(s)
- J T Qiao
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - C Cui
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - L Qing
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - L S Wang
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - T Y He
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - F Yan
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - F Q Liu
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China
| | - Y H Shen
- Division of Cardiothoracic Surgery, Michael E. DeBakey Department of Surgery, Baylor College of Medicine, Houston, TX, United States; Texas Heart Institute, Houston, TX, United States.
| | - X G Hou
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China.
| | - L Chen
- Department of Endocrine and Metabolism, Qilu Hospital of Shandong University, Jinan, Shandong, China; Institute of Endocrinology and Metabolism, Shandong University, Jinan, Shandong, China.
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Qing L, Wei R, Chan L, Xiaoya Z, Xin X. Sensitivity of various body indices and visceral adiposity index in predicting metabolic syndrome among Chinese patients with adult growth hormone deficiency. J Endocrinol Invest 2017; 40:653-661. [PMID: 28233232 PMCID: PMC5443877 DOI: 10.1007/s40618-017-0621-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 01/18/2017] [Indexed: 12/28/2022]
Abstract
AIM Adult growth hormone deficiency (AGHD) refers to decreased secretion of growth hormones in the adults, which is associated with increased clustering of conventional cardiovascular risk factors such as central obesity, insulin resistance and dyslipidemia. Metabolic syndrome (MetS), a recognized risk factor of cardiovascluar diseases, shares some clinical features. Given that the prevalence of MetS is on the rise in patients with AGHD, and that cardiovascular disease (CVD) is an important cause of morbidity and mortality in that population, the alternative, simple, non-invasive methods of assessing MetS among this population are needed. This study aims to determine the sensitivity of five anthropometric indices [Body mass index (BMI), Waist circumference (WC), Waist-to-hip ratio (WHR), Waist-to-height ratio (WHtR) and Visceral adiposity index (VAI)] in predicting metabolic syndrome in Chinese population-based patients with adult growth hormone deficiency. MATERIALS AND METHODS A total of 96 Chinese patients with adult growth hormone deficiency were included in this study. They were compared with equal number of apparently healthy persons with similar characteristics (matched with age and gender) to the previous group. Anthropometric measurements including weight, height, serum lipids indices, blood pressure (BP), fasting plasma glucose (FPG), WC were measured. BMI, WHR, WHtR, and VAI were calculated. RESULTS AND DISCUSSION AGHD patients with MetS had higher WC (91.00 ± 8.28 vs 78.01 ± 7.12), BMI (24.95 ± 2.91 VS 23.30 ± 2.80), WHR (0.92 ± 0.06 VS 0.87 ± 0.07), WHtR (0.53 ± 0.06 VS 0.47 ± 0.05), VAI [(5.59 (4.02, 7.55) VS 1.69 (0.87, 3.05)] levels in comparison to those without MetS. Meantime WC, BMI, WHR, WHtR, VAI was positively correlated to MetS components. ROC curve for participants with AGHD showed that VAI had the highest SS of 92% (BMI 0.812; WHR 0.706; WHtR 0.902; VAI 0.920, respectively) for prediction of MetS in AGHD. The optimal cutoff values for different adiposity markers in predicting MetS were as follows: WC (79.65), BMI (23.46); WHR (0.89); WHtR (0.54); VAI (2.29). CONCLUSION In conclusion, our study showed all adiposity measures of interest present themselves as easy and practical tools for use in population studies and clinical practice for evaluating MetS in AGDH and VAI was identified as the best in Chinese AGHD patients among them.
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Affiliation(s)
- L Qing
- Department of Endocrinology, Chongqing Medical University First Affiliated Hospital, #1 You-Yi Rd., Yu-zhong District, Chongqing, 400016, China
| | - R Wei
- Department of Endocrinology, Chongqing Medical University First Affiliated Hospital, #1 You-Yi Rd., Yu-zhong District, Chongqing, 400016, China.
| | - L Chan
- Department of Endocrinology, Chongqing Medical University First Affiliated Hospital, #1 You-Yi Rd., Yu-zhong District, Chongqing, 400016, China
| | - Z Xiaoya
- Department of Endocrinology, Chongqing Medical University First Affiliated Hospital, #1 You-Yi Rd., Yu-zhong District, Chongqing, 400016, China
| | - X Xin
- Department of Endocrinology, Chongqing Medical University First Affiliated Hospital, #1 You-Yi Rd., Yu-zhong District, Chongqing, 400016, China
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Downward GS, Hu W, Rothman N, Reiss B, Wu G, Wei F, Xu J, Seow WJ, Brunekreef B, Chapman RS, Qing L, Vermeulen R. Outdoor, indoor, and personal black carbon exposure from cookstoves burning solid fuels. Indoor Air 2016; 26:784-95. [PMID: 26452237 PMCID: PMC4826638 DOI: 10.1111/ina.12255] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [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: 04/09/2015] [Accepted: 10/04/2015] [Indexed: 05/03/2023]
Abstract
Black carbon (BC) emissions from solid fuel combustion are associated with increased morbidity and mortality and are important drivers of climate change. We studied BC measurements, approximated by particulate matter (PM2.5 ) absorbance, in rural Yunnan province, China, whose residents use a variety of solid fuels for cooking and heating including bituminous and anthracite coal, and wood. Measurements were taken over two consecutive 24-h periods from 163 households in 30 villages. PM2.5 absorbance (PMabs ) was measured using an EEL 043 Smoke Stain Reflectometer. PMabs measurements were higher in wood burning households (16.3 × 10(-5) /m) than bituminous and anthracite coal households (12 and 5.1 × 10(-5) /m, respectively). Among bituminous coal users, measurements varied by a factor of two depending on the coal source. Portable stoves (which are lit outdoors and brought indoors for use) were associated with reduced PMabs levels, but no other impact of stove design was observed. Outdoor measurements were positively correlated with and approximately half the level of indoor measurements (r = 0.49, P < 0.01). Measurements of BC (as approximated by PMabs ) in this population are modulated by fuel type and source. This provides valuable insight into potential morbidity, mortality, and climate change contributions of domestic usage of solid fuels.
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Affiliation(s)
- G S Downward
- Institute for Risk Assessment Sciences, Division of Environmental Epidemiology, Utrecht University, Utrecht, The Netherlands.
| | - W Hu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD, USA
| | - N Rothman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD, USA
| | - B Reiss
- Institute for Risk Assessment Sciences, Division of Environmental Epidemiology, Utrecht University, Utrecht, The Netherlands
| | - G Wu
- China National Environmental Monitoring Centre, Beijing, China
| | - F Wei
- China National Environmental Monitoring Centre, Beijing, China
| | - J Xu
- Hong Kong University, Hong Kong, China
| | - W J Seow
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD, USA
| | - B Brunekreef
- Institute for Risk Assessment Sciences, Division of Environmental Epidemiology, Utrecht University, Utrecht, The Netherlands
| | - R S Chapman
- College of Public Health Sciences, Chulalongkorn University, Bangkok, Thailand
| | - L Qing
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, NIH, DHHS, Bethesda, MD, USA
| | - R Vermeulen
- Institute for Risk Assessment Sciences, Division of Environmental Epidemiology, Utrecht University, Utrecht, The Netherlands
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Chan L, Xue H, Xiaoya Z, Jiajia X, Wei R, Linman L, Qing L, Lan L. Lipid Accumulation Product: a Simple and Accurate Index for Predicting Metabolic Syndrome in Patients with Adult Growth Hormone Deficiency. Exp Clin Endocrinol Diabetes 2016; 124:220-4. [PMID: 27123781 DOI: 10.1055/s-0035-1569402] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
PURPOSE It has been demonstrated that metabolic risk factors were increased in adult growth hormone deficiency (AGHD) patients. Lipid accumulation product (LAP) is a novel biomarker of central lipid accumulation related to risk of metabolic syndrome (MS), diabetes and cardiovascular disease. The aim of this study was to investigate the ability of LAP to identify MS in AGHD Patients. MATERIALS AND METHODS In this cross-sectional study, 75 AGHD patients and 75 controls matched with age and gender were enrolled. The general anthropometries and blood biochemical indexes were measured. Body mass index(BMI), waist-hip ratio (WHR), LAP, HOMA-IR were calculated. Receiver operating characteristic (ROC) analysis was used to find out the cut-off points of LAP to predict MS. RESULTS Compared with control group, waist circumference (WC), WHR, Systolic blood pressure (SBP), Diastolic blood pressure (DBP), total cholesterol (TC), triglyceride (TG) and LAP were increased in AGHD group, while high density lipoprotein cholesterol (HDL-c) level was lower in AGHD group (P<0.05). The prevalence of MS was 41.3% in AGHD patients. AGHD patients with MS had significantly higher LAP levels compared to those without MS. LAP was highly correlated with components of MS. ROC analysis showed that LAP was a significant discriminator for MS in AGHD patients, and the optimal cutoff point of LAP to predict MS was 44.96 (96.8% sensitivity, 86.4% specificity). CONCLUSIONS LAP was associated with MS and had a strong and reliable diagnostic accuracy for MS in AGHD patients.
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Affiliation(s)
- L Chan
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - H Xue
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Z Xiaoya
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - X Jiajia
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - R Wei
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - L Linman
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - L Qing
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - L Lan
- Department of Endocrinology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Zhang PY, Hao L, Zhang ZG, Dong BZ, Yang D, Wang XL, Xuan XJ, Yan Z, Qing L, Shi ZD, Liu D, Han CH. Construction of conditionally replicating adenovirus expressing staphylococcal enterotoxin A gene: potential usefulness for anti-tumor therapies. Eur Rev Med Pharmacol Sci 2014; 18:2258-2263. [PMID: 25219823] [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: 06/03/2023]
Abstract
OBJECTIVE The aim of this study was to construct a conditionally replicating adenovirus pPE3-SEA expressing staphylococcal enterotoxin A (SEA) gene. MATERIALS AND METHODS A full-length SEA gene fragment was cloned into pENTR12 plasmid to obtain a recombinant viral plasmid pENTR12-SEA. The pENTR12-SEA plasmid was co-transfected into HEK293 cells along with pPE3-ccdB, which encoded for the virus backbone, to generate recombinant adenovirus pPE3-SEA vector. Amplified pPE3-SEA vectors were purified, and viral titer was determined using the 50% tissue culture infective dose method. RESULTS The PCR, restriction enzyme digestion, and sequence analyses proved successful construction of replicating oncolytic adenovirus pENTR12-SEA and recombinant SEA expressing oncolytic adenovirus pPE3-SEA. The viral titer was 2.5 × 1010 pfu/ml. CONCLUSIONS We successfully constructed conditionally replicating adenovirus pPE3-SEA which can be utilized for experimental studies of tumor-targeted therapies.
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Affiliation(s)
- P-Y Zhang
- Department of Urology, The Affiliated School of Clinical Medicine of Xuzhou Medical College, Xuzhou Central Hospital, Xuzhou, China.
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Jun Q, Zhiming L, Qiuxia L, Zetao L, Qiujing W, Shuangyan C, Ju R, Zaiying H, Mingcan Y, Yanli Z, Qing L, Jianlin H, Yunfeng P, Yuqiong W, Ou J, Tianwang L, Jieruo G. FRI0449 Higher risk of uveitis and dactylitis and older age of onset among as patients with hla-b*2705 than patients with hla-b*2704 in the chinese population. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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14
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Qing L, Lai Z. Effects of head-down bed rest on the executive functions and emotional statuses of individuals. Int J Psychophysiol 2012. [DOI: 10.1016/j.ijpsycho.2012.07.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Qing L, Ji Z, He X. Online Discriminative Sparse Coding as a Systems-level Model of the Primate's Dorsal and Ventral Pathways. J Vis 2012. [DOI: 10.1167/12.9.927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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16
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Jing C, Han L, Qing L, Shu T, Kanghua M, Luosuuxin, Xiaogang Z, Wei H, Zhong Z, HangChongqing F. Optimisation of culture and cardiogenic differentiation of rat mesenchymal stem cells. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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17
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Zhigang Y, Jianmei L, Xinjin Z, Qing L, Bei Y, Zhidong C, Jun G. Clinical study about effect of amlodipine with compound amiloride or telmisartan on non-invasive central aortic blood pressure and vascular function. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
OBJECTIVES Bisphosphonates commonly used to treat osteoporosis, Paget's disease, multiple myeloma, hypercalcemia of malignancy and osteolytic lesions of cancer metastasis have been associated with bisphosphonate-associated jaw osteonecrosis (BJON). The underlying pathogenesis of BJON is unclear, but disproportionate bisphosphonate concentration in the jaw has been proposed as one potential etiological factor. This study tested the hypothesis that skeletal biodistribution of intravenous bisphosphonate is anatomic site-dependent in a rat model system. MATERIALS AND METHODS Fluorescently labeled pamidronate was injected intravenously in athymic rats of equal weights followed by in vivo whole body fluorimetry, ex vivo optical imaging of oral, axial, and appendicular bones and ethylenediaminetetraacetic acid bone decalcification to assess hydroxyapatite-bound bisphosphonate. RESULTS Bisphosphonate uptake and bisphosphonate released per unit calcium were similar in oral and appendicular bones but lower than those in axial bones. Hydroxyapatite-bound bisphosphonate liberated by sequential acid decalcification was the highest in oral, relative to axial and appendicular bones (P < 0.05). CONCLUSIONS This study demonstrates regional differences in uptake and release of bisphosphonate from oral, axial, and appendicular bones of immune deficient rats.
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Affiliation(s)
- D. Wen
- Department of Oral Medicine, School of Dental Medicine, University of Pennsylvania, Philadelphia PA
| | - L. Qing
- Department of Periodontology & Oral Medicine, School of Stomatology, The Fourth Military Medical University, Xi’an, China
| | - G. Harrison
- Department of Biochemistry, School of Dental Medicine, University of Pennsylvania, Philadelphia PA
| | - E. Golub
- Department of Biochemistry, School of Dental Medicine, University of Pennsylvania, Philadelphia PA
| | - S.O. Akintoye
- Department of Oral Medicine, School of Dental Medicine, University of Pennsylvania, Philadelphia PA
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Abstract
AIM To study effects of cyclic adenosine monophosphate (cAMP) on development and secondary metabolites of Monascus ruber M-7. METHODS AND RESULTS Plate culture, liquid-state fermentation (LSF) and solid-state fermentation (SSF) were used to evaluate effects of cAMP on colonial growth, spore formation and polyketide production of Strain M-7. The results revealed that the variation trends of colonial sizes, numbers of sexual spores and red pigment contents of M-7 were in a dose-dependent manner. And generally they increased and decreased with cAMP concentrations in the ranges of low cAMP concentrations and high cAMP concentrations, respectively. But the variation trends of numbers of asexual spores and citrinin production in both LSF and SSF were opposite to those of colonial sizes, sexual sporulation and red pigment. CONCLUSIONS The regulation of cAMP on development and secondary metabolites in Strain M-7 was in a dose-dependent pattern. And red pigment might convert to citrinin under changing cAMP concentrations. SIGNIFICANCE AND IMPACT OF THE STUDY The effects of cAMP on Strain M-7 in SSF give a new clue to enhance beneficial polyketides and reduce citrinin produced by M. ruber.
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Affiliation(s)
- Y Lai
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei Province, China
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20
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Zhang YY, Zan LS, Wang HB, Qing L, Wu KX, Quan SA, Li CQ, Zhong X, Wang CJ. Differentially expressed genes in skeletal muscle tissues from castrated Qinchuan cattle males compared with those from intact males. Livest Sci 2011. [DOI: 10.1016/j.livsci.2010.06.070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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21
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Yuman L, Mingxing X, Xinfang W, Qing L, Li Y, Lan J, Yue S, Ning Z. e0691 Feasibility and reproducibility of a new semiautomated quantification of left ventricular volumes and ejection fraction in normal adults using real time 3-dimensional echocardiography. Heart 2010. [DOI: 10.1136/hrt.2010.208967.691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
In recent years, whitefly-transmitted begomovirues (family Geminiviridae) have caused severe leaf curl disease on tobacco and tomato in southern China, but have not been found on pepper. In August 2009, pepper plants (Capsicum frutescens) grown in the field in Panzhihua City of Sichuan Province (southwestern China), from where the occurrence of begomoviruses has not been reported previously, showed stunting, leaf yellowing, and mild curling symptoms. To identify possible begomoviruses, total DNA was extracted from three infected pepper plants (SC117, SC118, and SC119) with typical symptoms. Using degenerate primer pair PA/PB specific for members of the genus Begomovirus (2), a 500-bp DNA fragment covering parts of the intergenic region and V2 gene of the genome of begomoviruses was amplified from all samples. No amplification was observed from healthy plant extracts. The PCR product from SC118 was cloned and two clones were chosen to be sequenced. Alignment of the partial DNA sequences revealed that the cloned products from isolate SC118 were nearly identical (98.5%) and most closely related to Tobacco curly shoot virus isolate Y35 (TbCSV-[China:Yunnan 35:2001]; Accession No. AJ420318) (96.9 and 97.3% identity, respectively). Therefore, the entire genome of isolate SC118 was sequenced. Overlap primers TbCSV-F(5'-CCGCCGTCTCAACTTCGACAG-3') and TbCSV-R(5'-ATCTGCTGGTCGCTTCGACAT-3') were designed to amplify the full-length genome of SC118. The complete genome sequence of SC118 was determined to be 2,746 nucleotides (Accession No. GU001879) long, with two open reading frames (ORFs) in the virion-sense strand and four ORFs in the complementary-sense strand, typical of the Old World begomoviruses. A comparison with other reported sequences of begomoviruses shows that the genome of SC118 shares the highest nucleotide sequence identity (99.7%) with TbCSV-[China:Yunnan 35:2001]. When PCR was used to detect TbCSV from the other two isolates (SC117 and SC119) with TbCSV specific primer pair Y35F1 and Y35+10R (4), which amplified the fragment covering the whole C2 and C3 genes and the partial C1 and V1 genes of the genome of TbCSV, an amplicon of approximately 1.0 kb was obtained from all samples. To determine whether a satellite molecule was associated with the three virus isolates, a universal betasatellite abutting primer pair (beta01 and beta02) was used (1). No amplification product was detected. In previous studies, it was demonstrated that only 11 isolates were associated with betasatellites among 39 TbCSV-infected, field-collected samples (3), and betasatellites could be associated with noncognate begomoviruses (4). Therefore, the three isolates examined in this study are too few to come to a conclusion that betasatellites are not associated with TbCSV infection of pepper plants. A detailed search for the presence of betasatellites needs to be conducted to draw a definitive conclusion. The above results confirmed that samples SC117, SC118, and SC119 were infected by TbCSV. To our knowledge, this is the first report of TbCSV on pepper in China. References: (1) R. W. Briddon et al. Mol. Biotechnol. 20:317, 2002. (2) D. Deng et al. Ann. Appl. Biol. 125:327, 1994. (3) Z. Li et al. Phytopathology 95:902, 2005. (4) L. Qing et al. Phytopathology 99:716, 2009.
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Affiliation(s)
- L Qing
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing, 400716, P.R. China
| | - Y Xiong
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing, 400716, P.R. China
| | - X C Sun
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing, 400716, P.R. China
| | - S Y Yang
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing, 400716, P.R. China
| | - C Y Zhou
- Citrus Research Institute, Chinese Academy of Agricultural Sciences, Chongqing, 400712, P.R. China
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Niu YB, Qing L, Yao M, Wang DF, Liu JD, Wang JS. First Report of Tobacco mosaic virus in Abutilon theophrasti in China. Plant Dis 2009; 93:1221. [PMID: 30754601 DOI: 10.1094/pdis-93-11-1221b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Velvetleaf (Abutilon theophrasti Medic), a tall, fecund, self-fertile annual plant in the family Malvaceae, is widely grown in China as a fiber crop and for its medicinal properties. In July of 2008, we observed diffuse chlorotic and necrotic spots on the oldest leaves of velvetleaf plants in the field in Shanxi Province. Sap extracts from six symptomatic plants were tested by direct antigen coated ELISA using polyclonal antibodies specific to Potato virus Y (PVY) and monoclonal antibodies specific to Tomato mosaic virus (ToMV), Cucumber mosaic virus (CMV), and Tobacco mosaic virus (TMV). Five of the six samples were negative for ToMV, CMV, and PVY but positive for TMV. Double-stranded RNA extracted from leaves of the five velvetleaf plants was used as template for reverse transcription (RT)-PCR as described by Krajačića et al. (1) and Li et al. (2) with some modifications. One-step RT-PCR was performed using a Quant One Step RT-PCR Kit (TIANGEN BIOTECH CO., LTD., Beijing, China) with sense (5'-CTGTTTAGCCGGTTTGGT-3'), and antisense (5'-TCCCTTTACGGACATCAC-3') primers (3) designed to specifically amplify a fragment of the movement protein coding region of TMV. The expected 470-bp fragments were amplified from dsRNA from these five plants and the amplicon from each plant was cloned and sequenced (GenBank Accession No. FJ873800). Comparisons of a consensus sequence derived from the five amplicons with the nucleotide sequences available in the NCBI database using BLAST showed 99% identity with TMV from South Korea (GenBank Accession No. AB354955) and Spain (Accession No. AJ308692) and 98% with TMV from China (Accession No. AF165190). The serological, RT-PCR results and sequence data revealed that these velvetleaf plants were infected by TMV. On the basis of the serological analysis and genome sequence comparisons, this isolate was tentatively designated as TMV-Velvetleaf. To our knowledge, this is the first report of TMV in Abutilon theophrasti Medic in China. References: (1) M. Krajačić et al. J. Chromatogr A. 1144:111, 2007. (2) H. Li et al. Agric. Sci. Chin. 6:86, 2007. (3) Y. B. Niu et al. Chin. Biotechnol. 29:76, 2009.
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Affiliation(s)
- Y B Niu
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, P. R. China
| | - L Qing
- Chongqing Key Laboratory of Plant Disease Biology, College of Plant Protection, Southwest University, Chongqing, 400716, P. R. China
| | - M Yao
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, P. R. China
| | - D F Wang
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, P. R. China
| | - J D Liu
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, P. R. China
| | - J S Wang
- College of Life Sciences, Shanxi Agricultural University, Taigu, 030801, P. R. China
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Qing L, Lv J, Li H, Tan Y, Hao H, Chen Z, Zhao J, Chen H. The recombinant nonstructural polyprotein NS1 of porcine parvovirus (PPV) as diagnostic antigen in ELISA to differentiate infected from vaccinated pigs. Vet Res Commun 2006; 30:175-90. [PMID: 16400603 DOI: 10.1007/s11259-006-3212-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/21/2004] [Indexed: 11/28/2022]
Abstract
To differentiate pigs infected with porcine parvovirus (PPV) from those vaccinated with inactivated whole-virus vaccine, an enzyme-linked immunosorbent assay (ELISA) based on detection of a nonstructural polyprotein 1 (NS1) was developed. A threshold of 0.23 optical density units was established and the assay had high specificity (100), sensitivity (88), accuracy (90) and positive predictive value (100) using haemagglutination inhibition as the standard method. A reproducibility test revealed that the coefficients of variation of sera within-plates and between-run were less than 10%. The assay showed no cross-reactivity with antibodies to porcine reproductive respiratory syndrome virus, pseudorabies virus, foot and mouth disease virus, Actinobacillus pleuropneumoniae, Toxoplasma or Chlamydia. Sera obtained from pigs infected with PPV reacted with recombinant NS1 protein in the ELISA. Sera from pigs vaccinated with inactivated whole virus did not recognize this protein in the ELISA. In contrast, antibodies against PPV whole virus were present in both PPV-infected and vaccinated animals. Serum conversion against NS1 was first detected 10 days after infection and NS1-specific antibodies were detectable up to half a year post infection. In conclusion, the PPV-NS1 ELISA can differentiate PPV-infected versus inactivated PPV-vaccinated pigs and could be applied in disease diagnosis and surveillance.
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Affiliation(s)
- L Qing
- Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, PR China
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Lei Z, Wen C, Xu J, Li X, Qing L, Wei M. OxLDL upregulates growth-regulation oncogene alpha expression in human endothelial cells. Chin Med J (Engl) 2001; 114:1240-4. [PMID: 11793843] [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: 02/23/2023] Open
Abstract
OBJECTIVE To explore the effect of oxLDL on CXC chemokine growth-regulated oncogene alpha (GRO alpha) expression in human endothelial cells and the possible functional significance of the effect. METHODS LDL was isolated by sequential ultracentrifugation and oxidized to oxLDL. Reverse transcription-polymerase chain reaction with GAPDH as internal standard was applied and CXC chemokine GRO alpha mRNA in endothelial ECV304 cells was examined. ELISA was used to determine GRO alpha protein expression on ECV304 cells surface and in the medium. With static cell adhesion assays, the physiological significance of elevated GRO alpha expression was tested. RESULTS OxLDL, not LDL, treatment of ECV304 cells significantly induced the expression of GRO alpha mRNA that was not detectable in untreated cells. Induction of expression was first evident at 1 h, became maximal at 2 h, and was substantially decreased by 4 h. In a concentration- and time-dependent manner, oxLDL, and not LDL, induced a significant upregulation of GRO alpha surface expression in ECV304 cells that was at a barely detectable level in unstimulated ECV304 cells. GRO alpha protein in the medium did not change significantly. Exposure of ECV304 cells to 40 micrograms protein/ml oxLDL for 24 h resulted in a marked increase in the number of U937 cells bound to ECV304 cells and antibodies to GRO alpha inhibited adhesion. CONCLUSION OxLDL functionally upregulated GRO alpha expression in endothelial cells.
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Affiliation(s)
- Z Lei
- Department of Cardiology, General Hospital of Jinan Military Area, Jinan 250021, China.
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Qing L, Wu J, Qi Y, Zhou X, Li D. [Production of monoclonal antibodies to broad bean wilt virus and application in virus detection]. Wei Sheng Wu Xue Bao 2000; 40:166-73. [PMID: 12548940] [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: 02/28/2023]
Abstract
Six hybridoma cell lines secretion monoclonal antibodies(MAbs) against broad bean wilt virus(BBWV) were produced by fusing mouse myeloma cells(SP 2/0) with spleen cells from BAL B/c immunized by the BBWV particles. The hybridoma cell lines secreted MAbs stably after cultured in vitro for 3 months or stored in liquid nitrogen and then revived for several times. The titres of ascitic fluids of six MAbs ranged from 1:256,000 to 1:640,000 when measured by indirect ELISA. In agarose gel immunodiffusion test, it showed that the six MAbs represented the same isotype of murine antibodies, IgG1. Six MAbs could detect 4 tested BBWV isolates, but didn't crossreact with other 5 plant viruses. The result of Western blot showed that all the six MAbs can react with the 44.7 kD large coat protein subunit of BBWV. This is the first report of production of MAbs against BBWV.
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Affiliation(s)
- L Qing
- Institute of Biotechnology, Zhejiang University, Hangzhou 310029
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Höög A, Hu W, Abdel-Halim SM, Falkmer S, Qing L, Grimelius L. Ultrastructural localization of insulin-like growth factor-2 (IGF-2) to the secretory granules of insulin cells: a study in normal and diabetic (GK) rats. Ultrastruct Pathol 1997; 21:457-66. [PMID: 9273977 DOI: 10.3109/01913129709021946] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [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: 02/05/2023]
Abstract
By using biochemical and light-microscopical techniques, insulin-like growth factor-2 (IGF-2) has recently been found in adult pancreas, co-localized immunohistochemically with insulin in the islet B-cells. The purpose of this study was to trace IGF-2 immunoreactivity (IR) at the ultrastructural level in normal and diabetic Goto-Kakizaki (GK) rats. Using a pre-embedding technique and immuno-gold-silver staining, IGF-2 antibody binding was localized exclusively to the halo of a subset of secretory beta-granules in normal rats. Insulin IR occurred more frequently in the granules. GK rats had, in addition to normal-looking islets, some islets with irregular shape and an increased amount of fibrous tissue, so-called "starfish-shaped" islets. In these, beta-granules were usually found, but most of the B-cells were also occupied by large, usually electron-translucent vesicles, some resembling crinophagic bodies, i.e., the sign of intracellular degradation of secretory granules. In starfish-shaped islets, IGF-2 IR was localized to the halo of beta-granules, as in GK islets with normal appearance. Occasionally, IGF-2 IR was also found in the cytoplasm and even in adjacent fibroblasts. Insulin IR was restricted to beta-granules. Because the lysosomes have IGF-2 receptors, the presence of IGF-2 peptide in secretory granules could explain why some granules are guided to lysosomes for degradation.
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Affiliation(s)
- A Höög
- Department of Oncology and Pathology, Karolinska Institute, Stockholm, Sweden.
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Pei GX, Kunde L, Chuwen C, Dengshong Z, Fuyi W, Songto W, Minsheng W, Lie G, Qing L, Lui CK, Zhang LL. Replantation of four severed limbs in one patient. Injury 1997; 28:73-6. [PMID: 9196633 DOI: 10.1016/s0020-1383(96)00090-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- G X Pei
- Department of Orthopaedics and Traumatology, Nantang Hospital, First Military Medical University, Guangzhou, People's Republic of China
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29
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Vanham G, Edmonds K, Qing L, Hom D, Toossi Z, Jones B, Daley CL, Huebner B, Kestens L, Gigase P, Ellner JJ. Generalized immune activation in pulmonary tuberculosis: co-activation with HIV infection. Clin Exp Immunol 1996; 103:30-4. [PMID: 8565282 PMCID: PMC2200321 DOI: 10.1046/j.1365-2249.1996.907600.x] [Citation(s) in RCA: 115] [Impact Index Per Article: 4.1] [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] [Indexed: 01/31/2023] Open
Abstract
Parameters of immune activation/differentiation were studied in a group of newly diagnosed HIV- and HIV+ pulmonary tuberculosis (TB) patients. Compared with controls, HLA-DR expression on both CD4 and CD8 T cells from the HIV- TB patients was approximately doubled; HLA-DR on T cells from the HIV+ group was tripled. The monocytes from both groups of patients expressed abnormally high levels of the Fc gamma receptors I and III. Serum levels of tumour necrosis factor-alpha (TNF-alpha), neopterin and beta 2-microglobulin were increased in HIV- and even more so in HIV+ TB patients. The expression of HLA-DR on T cell subsets and of Fc gamma R on monocytes correlated with each other, but not with serum activation markers. This pattern of non-specific activation during TB infection may be associated with enhanced susceptibility to HIV infection.
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Affiliation(s)
- G Vanham
- Department of Infection and Immunity, Institute of Tropical Medicine, Antwerpen, Belgium
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30
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Moore JP, Cao Y, Qing L, Sattentau QJ, Pyati J, Koduri R, Robinson J, Barbas CF, Burton DR, Ho DD. Primary isolates of human immunodeficiency virus type 1 are relatively resistant to neutralization by monoclonal antibodies to gp120, and their neutralization is not predicted by studies with monomeric gp120. J Virol 1995; 69:101-9. [PMID: 7527081 PMCID: PMC188553 DOI: 10.1128/jvi.69.1.101-109.1995] [Citation(s) in RCA: 344] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
A panel of anti-gp120 human monoclonal antibodies (HuMAbs), CD4-IgG, and sera from people infected with human immunodeficiency virus type 1 (HIV-1) was tested for neutralization of nine primary HIV-1 isolates, one molecularly cloned primary strain (JR-CSF), and two strains (IIIB and MN) adapted for growth in transformed T-cell lines. All the viruses were grown in mitogen-stimulated peripheral blood mononuclear cells and were tested for their ability to infect these cells in the presence and absence of the reagents mentioned above. In general, the primary isolates were relatively resistant to neutralization by the MAbs tested, compared with the T-cell line-adapted strains. However, one HuMAb, IgG1b12, was able to neutralize most of the primary isolates at concentrations of < or = 1 microgram/ml. Usually, the inability of a HuMAb to neutralize a primary isolate was not due merely to the absence of the antibody epitope from the virus; the majority of the HuMAbs bound with high affinity to monomeric gp120 molecules derived from various strains but neutralized the viruses inefficiently. We infer therefore that the mechanism of resistance of primary isolates to most neutralizing antibodies is complex, and we suggest that it involves an inaccessibility of antibody binding sites in the context of the native glycoprotein complex on the virion. Such a mechanism would parallel that which was previously postulated for soluble CD4 resistance. We conclude that studies of HIV-1 neutralization that rely on strains adapted to growth in transformed T-cell lines yield the misleading impression that HIV-1 is readily neutralized. The more relevant primary HIV-1 isolates are relatively resistant to neutralization, although these isolates can be potently neutralized by a subset of human polyclonal or monoclonal antibodies.
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Affiliation(s)
- J P Moore
- Aaron Diamond AIDS Research Center, New York University School of Medicine, New York 10016
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31
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Qing L. The inhibition of calcification of bioprosthetic heart valves by Al and Fe pretreatment. ASAIO Trans 1991; 37:115-6. [PMID: 1854548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Abstract
The analysis of restriction fragment length polymorphisms (RFLPs) was applied to distinguish several kinds of Anisakinae larvae, Anisakis larvae (type I) collected from two different paratenic hosts, Anisakis larvae (type II) and Contracaecum larvae. The patterns of the two different paratenic host-derived DNA of Anisakis larva (I) were exactly the same in hybridized fragments generated by six endonucleases. The quite different patterns in RFLPs of genomic DNA were observed among the Anisakis larva (I), Anisakis larva (II) and Contracaecum larvae. The results suggest that the RFLPs analysis may be useful for distinguishing Anisakinae larvae and clarifying the relationships between Anisakis larvae and their adult worms.
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Affiliation(s)
- K Sugane
- Department of Parasitology, Faculty of Medicine, Shinshu University, Nagano Prefecture, Japan
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