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Chen N, Zhao M, Wu N, Guo Y, Cao B, Zhan B, Li Y, Zhou T, Zhu F, Guo C, Shi Y, Wang Q, Li Y, Zhang L. ACSS2 controls PPARγ activity homeostasis to potentiate adipose-tissue plasticity. Cell Death Differ 2024; 31:479-496. [PMID: 38332049 PMCID: PMC11043345 DOI: 10.1038/s41418-024-01262-0] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 01/24/2024] [Accepted: 01/26/2024] [Indexed: 02/10/2024] Open
Abstract
The appropriate transcriptional activity of PPARγ is indispensable for controlling inflammation, tumor and obesity. Therefore, the identification of key switch that couples PPARγ activation with degradation to sustain its activity homeostasis is extremely important. Unexpectedly, we here show that acetyl-CoA synthetase short-chain family member 2 (ACSS2) critically controls PPARγ activity homeostasis via SIRT1 to enhance adipose plasticity via promoting white adipose tissues beiging and brown adipose tissues thermogenesis. Mechanistically, ACSS2 binds directly acetylated PPARγ in the presence of ligand and recruits SIRT1 and PRDM16 to activate UCP1 expression. In turn, SIRT1 triggers ACSS2 translocation from deacetylated PPARγ to P300 and thereafter induces PPARγ polyubiquitination and degradation. Interestingly, D-mannose rapidly activates ACSS2-PPARγ-UCP1 axis to resist high fat diet induced obesity in mice. We thus reveal a novel ACSS2 function in coupling PPARγ activation with degradation via SIRT1 and suggest D-mannose as a novel adipose plasticity regulator via ACSS2 to prevent obesity.
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Affiliation(s)
- Nuo Chen
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ming Zhao
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Nan Wu
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yaxin Guo
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Baihui Cao
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Bing Zhan
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yubin Li
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tian Zhou
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Faliang Zhu
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Chun Guo
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yongyu Shi
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qun Wang
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yan Li
- Department of Pathogen Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China.
| | - Lining Zhang
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China.
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Li Y, Cui M, Pang Y, Zhan B, Li X, Wang Q, Chen F, Zhou Z, Yang Q. Association of physical activity with socio-economic status and chronic disease in older adults in China: cross-sectional findings from the survey of CLASS 2020 after the outbreak of COVID-19. BMC Public Health 2024; 24:37. [PMID: 38166980 PMCID: PMC10762973 DOI: 10.1186/s12889-023-17492-9] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 12/14/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND In 2021, China had a population of 264·01 million individuals over the age of 60, indicating a high prevalence of chronic diseases. Among older adults, physical inactivity (PI) is a significant risk factor for chronic diseases. However, few studies have been conducted on the correlation of physical activity (PA) with the economic status, geography and chronic disease risks in Chinese elderly. The objectives of this study were to better understand the distribution of PA among older adults in China and its relationship with economic status, geography, and chronic disease risks. METHODS This study utilized data from the China Longitudinal Aging Social Survey (CLASS) in 2020, post-COVID-19. The study employed a stratified, multistage, probabilistic sampling approach and included 11,396 adults over the age of 59 from 28 provinces in China. Data on demographics, the duration and intensity of PA, history of diseases and personalized factors influencing PA were collected via structured interviews by researchers. In this study, we conducted a comprehensive analysis, employing a range of statistical methods including descriptive analysis, Wilcoxon rank-sum tests, Bayesian networks, and chi-square tests. RESULTS The prevalence of PI among older adults over 59 in China is 28·82%. Significant regional differences were observed in the duration of PA at different intensities. Older adults residing in more economically developed areas were more likely to engage in moderate-to-vigorous physical activity (MVPA) and exhibited longer sedentary behavior. Economic status and urban-rural disparities consistently emerged as direct influential factors across all intensity types. Chronic disease risks were significantly lower in active older adults compared to inactive ones. Lack of social guidance, family support, and personal inclination towards sedentary behavior were the main personalized factors affecting PA among older adults, and these factors could be relatively easily modified. CONCLUSIONS Economic status, geography, and living areas (urban and rural) significantly influenced the distribution of physical activities in China. Particularly, economic status and living areas acted as direct factors. Older adults reaching the recommended standards for PA had significantly lower chronic disease risks, highlighting the importance of improving personalized factors which are crucial for promoting PA.
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Affiliation(s)
- Yi Li
- Capital University of Physical Education and Sports, Beijing, 100000, China
| | - Mingyuan Cui
- Capital University of Physical Education and Sports, Beijing, 100000, China
| | - Yiqun Pang
- Southwest Petroleum University, Chengdu, 610000, China
| | - Bing Zhan
- Capital University of Physical Education and Sports, Beijing, 100000, China
| | - Xiaotian Li
- Capital University of Physical Education and Sports, Beijing, 100000, China
| | - Qiurui Wang
- Capital University of Physical Education and Sports, Beijing, 100000, China
| | - Fang Chen
- Capital University of Physical Education and Sports, Beijing, 100000, China
| | - Zhixiong Zhou
- Capital University of Physical Education and Sports, Beijing, 100000, China.
| | - Qingzhu Yang
- Capital University of Physical Education and Sports, Beijing, 100000, China.
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Chen N, Zhao M, Guo Y, Wu N, Cao B, Zhan B, Zhou T, Li Y, Zhu F, Chen W, Li Y, Zhang L. D-mannose is a rapid inducer of ACSS2 to trigger rapid and long-lasting antidepressant responses through augmenting BDNF and TPH2 levels. Transl Psychiatry 2023; 13:338. [PMID: 37914710 PMCID: PMC10620401 DOI: 10.1038/s41398-023-02636-7] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 11/03/2023] Open
Abstract
The potentiation of synaptic plasticity and serotonin generation by brain-derived neurotrophic factor (BDNF) and tryptophan hydroxylase 2 (TPH2) is well characterized to facilitate rapid and long-lasting antidepressant actions. Therefore, the identification of the key protein that simultaneously controls both BDNF and TPH2 is important for the treatment of depression. We show here that a lack of acetyl-CoA synthetase short-chain family member 2 (ACSS2) causes impairments in BDNF-dependent synaptic plasticity and tryptophan hydroxylase 2 (TPH2)-mediated serotonin generation, thereby contributing to spontaneous and chronic restraint stress (CRS)-induced depressive-like behavior in mice. Conversely, D-mannose is identified as a rapid ACSS2 inducer and thus mediates rapid and long-lasting antidepressant-like effects. Mechanistically, acute and chronic D-mannose administration inhibits the phosphorylation of EF2 to increase BDNF levels and reverse the reduction of TPH2 histone acetylation and transcription. We reveal that ACSS2 promotes TPH2 histone acetylation and transcription with the requirement of AMPK activation. To elevate nuclear ACSS2 levels, D-mannose can rapidly and persistently activate AMPK via Ca2+-CAMKK2 and the lysosomal AXIN-LKB1 pathway to facilitate its fast-acting and persistent antidepressant responses. Taken together, the results presented here reveal that ACSS2 functions as a novel target to link rapid and persistent antidepressant actions and further suggest that D-mannose is a potential therapeutic agent to resist depression through its augmentation of the ACSS2 dependent BDNF and TPH2 pathways.
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Affiliation(s)
- Nuo Chen
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ming Zhao
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yaxin Guo
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Nan Wu
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Baihui Cao
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Bing Zhan
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Tian Zhou
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Yubin Li
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Faliang Zhu
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - WanJun Chen
- Mucosal Immunology Section, NIDCR, US National Institutes of Health, Bethesda, MD, USA.
| | - Yan Li
- Department of Pathogen Biology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China.
| | - Lining Zhang
- Department of Immunology, School of Basic Medical Science, Cheeloo College of Medicine, Shandong University, Jinan, China.
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Zhao M, Chen N, Guo Y, Wu N, Cao B, Zhan B, Li Y, Zhou T, Zhu F, Guo C, Shi Y, Wang Q, Li Y, Zhang L. D-mannose acts as a V-ATPase inhibitor to suppress inflammatory cytokines generation and bacterial killing in macrophage. Mol Immunol 2023; 162:84-94. [PMID: 37660434 DOI: 10.1016/j.molimm.2023.08.013] [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: 03/13/2023] [Revised: 08/17/2023] [Accepted: 08/26/2023] [Indexed: 09/05/2023]
Abstract
Vacuolar-type H+-ATPase (V-ATPase) critically controls phagosome acidification to promote pathogen digestion and clearance in macrophage. However, the specific subunits of V-ATPase have been evidenced to play contradictory functions in inflammatory cytokines generation and secretion exposure to external bacterial or LPS stimulation. Therefore, identifying the unique function of the separate subunit of V-ATPase is extremely important to regulate macrophage function. Here, we found that D-mannose, a C-2 epimer of glucose, suppressed ATP6V1B2 lysosomal translocation to inhibit V-ATPase activity in macrophages, thereby causing the scaffold protein axis inhibitor protein (AXIN) recruitment to lysosomal membrane and AMPK activation. Correspondingly, LPS-stimulated macrophage M1 polarization was significantly suppressed by D-mannose via down-regulating NF-κB signaling pathway in response to AMPK activation, while IL-4 induced macrophage M2 polarization were not affected. Furthermore, the failure of lysosomal localization of ATP6V1B2 caused by D-mannose also led to the acidification defects of lysosome. Therefore, D-mannose displayed a remarkable function in inhibiting macrophage phagocytosis and bacterial killing. Taken together, D-mannose acts a novel V-ATPase suppressor to attenuate macrophage inflammatory production but simultaneously prevent macrophage phagocytosis and bacterial killing.
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Affiliation(s)
- Ming Zhao
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Nuo Chen
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Yaxin Guo
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Nan Wu
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Baihui Cao
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Bing Zhan
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Yubin Li
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Tian Zhou
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Faliang Zhu
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Chun Guo
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Yongyu Shi
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Qun Wang
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China
| | - Yan Li
- Department of Pathogen Biology, School of Basic Medical Science, Shandong University, Jinan, China.
| | - Lining Zhang
- Department of Immunology, School of Basic Medical Science, Shandong University, Jinan, China.
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Zhan B, Wang Q, Zhou Z, Li X, Yu H, Li B, Liao M. Association between Air Pollution and Physical Activity and Sedentary Behavior among Adults Aged 60 Years or Older in China: A Cross-Sectional Study. Int J Environ Res Public Health 2023; 20:2352. [PMID: 36767716 PMCID: PMC9915560 DOI: 10.3390/ijerph20032352] [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] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/21/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Exposure to air pollution is associated with an increased risk of all-cause mortality in older adults. Promoting physical activity (PA) and avoiding sedentary behavior (SB) serve as key strategies to maintain and improve human health. However, ambient air pollution can adversely affect PA and SB, increasing the risks of health problems. This study aimed to visualize national spatial patterns of average AQI concentration, PA, and SB distributions and to examine the associations between air pollution and PA and SB in a national sample of Chinese older adults aged 60 years or older. METHODS We analyzed the data of the China Longitudinal Aging Social Survey 2020 (CLASS 2020), which sampled 11,399 older men and women from 30 cities in China. Moderate, vigorous, and light PA and SB were measured using the Chinese version of the International Physical Activity Questionnaire-Short Form (IPAQ-C). The environmental measures included the average hourly air quality index (AQI), PM2.5, PM10, and NO2 (µg/m3). The data were analyzed using multivariable linear regression. RESULTS Increases in the standard deviations (±SD) of AQI, PM2.5, PM10, and NO2 concentrations were associated with decreases in MVPA per week of -2.34 (95%CI = -3.36, -1.32), -2.58 (95%CI = -3.61, -1.55), -1.96 (95%CI = -3.05, -0.08), and -1.19 (95%CI = -2.06, -0.31) and decreases in LPA per week of -6.06 (95%CI = -7.15, -4.97), -4.86 (95%CI = -5.88, -3.85), -4.78 (95%CI = -5.89, -3.68), and -4.59 (95%CI = -5.57, -3.61) h/week, respectively. Increases in one SD of AQI, PM2.5, PM10, and NO2 were associated with increases in SB per week of 1.32 (95%CI = 0.77, 1.88), 0.62 (95%CI = 0.09, 1.14), 1.03 (95%CI = 0.48, 1.59), and 0.98 (95%CI = 0.46, 1.49) h/week, respectively. CONCLUSIONS The spatial distributions of the average AQI concentration, MVPA, LPA, and SB are useful and allow environmental and health policymakers to identify the areas with the highest priority air pollution environmental equality concerns. AQI was positively associated with MVPA and LPA, and it was negatively associated with SB among older adults. AQI, PM2.5, PM10, and NO2 were hardly associated with women's average time spent engaged in MVPA. Region-specific and multi-level health policy options are needed to reduce ambient air pollution by taking different types of pollutants into account in order to avoid changes in PA and SB in this population, especially in locations with high air pollution concentrations.
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Affiliation(s)
- Bing Zhan
- School of Sport Management and Communication, Capital University of Physical Education and Sports, Beijing 100091, China
| | - Qiurui Wang
- Institute of Artificial Intelligence in Sports, Capital University of Physical Education and Sports, Beijing 100091, China
| | - Zhixiong Zhou
- School of Physical Education and Coaching Science, Capital University of Physical Education and Sports, Beijing 100091, China
| | - Xiaotian Li
- School of Recreation and Community Sport, Capital University of Physical Education and Sports, Beijing 100091, China
| | - Hongjun Yu
- Department of Physical Education, Tsinghua University, Beijing 100084, China
| | - Bingzhao Li
- Department of Mathematics and Statistics, Beijing Institute of Technology, Beijing 100081, China
| | - Mingxia Liao
- Institute of Artificial Intelligence in Sports, Capital University of Physical Education and Sports, Beijing 100091, China
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Zhuang X, Zhan B, Jia Y, Li C, Wu N, Zhao M, Chen N, Guo Y, Du Y, Zhang Y, Cao B, Li Y, Zhu F, Guo C, Wang Q, Li Y, Zhang L. IL-33 in the basolateral amygdala integrates neuroinflammation into anxiogenic circuits via modulating BDNF expression. Brain Behav Immun 2022; 102:98-109. [PMID: 35181439 DOI: 10.1016/j.bbi.2022.02.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 08/23/2021] [Revised: 02/10/2022] [Accepted: 02/13/2022] [Indexed: 12/13/2022] Open
Abstract
Hyper-inflammatory reaction plays a crucial role in the pathophysiology of depression and anxiety disorders. However, the mechanisms underlying inflammation-induced anxiety changes remain poorly understood. Here, we showed that in the lipopolysaccharide (LPS)-induced anxiety model, Interleukin (IL)-33, a member of the IL-1 family, was up-regulated in the basolateral amygdala, and IL-33 deficiency prevent anxiety-like behavior. Overexpression of IL-33 in amygdalar astrocytes led to anxiety-like response via repressing brain-derived neurotrophic factor (BDNF) expression. Mechanically, IL-33 suppressed BDNF expression through NF-κB pathway to impair GABAergic transmission in the amygdala and NF-κB inhibitor abolished the effect of IL-33 on anxiety. Administration of an inverse GABAA receptor agonist increased the anxiety of IL-33- deficient mice. These results reveal that inflammatory response can activate anxiogenic circuits by suppressing BDNF and GABAergic neurons transmission, suggesting that IL-33 in basolateral amygdalar is a linker between inflammation and anxiety.
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Affiliation(s)
- Xiao Zhuang
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Bing Zhan
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Yufeng Jia
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Chaoze Li
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Nan Wu
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Ming Zhao
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China; Department of Pathogenic Biology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China
| | - Nuo Chen
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Yaxin Guo
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Yingxin Du
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Yi Zhang
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Baihui Cao
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Yan Li
- Department of Pathogenic Biology, School of Basic Medical Science, Shandong University, Jinan, Shandong, China
| | - Faliang Zhu
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Chun Guo
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Qun Wang
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Yuan Li
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.
| | - Lining Zhang
- Shandong Key Laboratory of Infection and Immunity, Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China.
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Huang S, Hong X, Cui HZ, Zhan B, Li ZM, Hou XF. Bimetallic Bis-NHC-Ir(III) Complex Bearing 2-Arylbenzo[ d]oxazolyl Ligand: Synthesis, Catalysis, and Bimetallic Effects. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00464] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shuang Huang
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Xi Hong
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - He-Zhen Cui
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Bing Zhan
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Zhi-Ming Li
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | - Xiu-Feng Hou
- Department of Chemistry, Fudan University, Shanghai 200433, China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi 832003, China
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Dong ZP, Shi MG, Liu WW, Zhan B. [Two cases of occupational chronic severe carbon disulfide poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 37:471-472. [PMID: 31256536 DOI: 10.3760/cma.j.issn.1001-9391.2019.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Yi Y, Zhan B, Li C, Cui HZ, Liu S, Yang ML, Hou XF. Preparation and Adsorption Studies of Tridentate Monomer-functionalized Lead Ion Imprinted Mesoporous Silica. CHEM LETT 2019. [DOI: 10.1246/cl.190063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ying Yi
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, P. R. China
- Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Bing Zhan
- Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Chen Li
- Technical Center for Industrial Product and Raw Material Inspection and Testing, Shanghai Entry-Exit Inspection and Quarantine Bureau, Shanghai, P. R. China
| | - He-Zhen Cui
- Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
| | - Shu Liu
- Technical Center for Industrial Product and Raw Material Inspection and Testing, Shanghai Entry-Exit Inspection and Quarantine Bureau, Shanghai, P. R. China
| | - Min-Li Yang
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Xiu-Feng Hou
- Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
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Hu CY, Yu D, Zhan B, Han YH, Zhang HX, Li ZY, Zeng LY, Yan ZL, Xu KL. [Relationship between BCR-ABL IS and Prognosis and Affecting Factors for Prognosis in CML Patients Treated with TKI for 12 Months]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2019; 26:1281-1287. [PMID: 30295239 DOI: 10.7534/j.issn.1009-2137.2018.05.005] [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: 11/22/2022]
Abstract
OBJECTIVE To evaluate the long-term prognosis of CML patients whose BCR-ABL transcript level was warning and best response at 12 months of treatment with tyrosine kinase inhititor (TKI), and to investigate the factors affecting therapeutic efficacy and prognosis. METHODS The clinical data of patients with newly diagnosed CML were analyzed retrospectively. According to BCR-ABL transcript level, the 80 patients were divided into group A and group B, the patients with BCR-ABLIS >0.1% and ≤ 1% (warning response) were entolled in group A, and the patients with BCR-ABLIS ≤ 0.1% (best response) were enrolled in group B as control. The ratio of patients with main molecular response (MMR) and deep molecular response (DMR), as well as aquistation rate and cummulative rate of MR4 (DMR) at specified fine points in 2 groups were compared, the independent risk factors affecting the therapeutic efficacy and prognosis were analyzed. RESULTS The MMR and MR4 of the B group at 15, 18 and 24 months after TKI treatment were significantly higher than those of the A group, and the patients in the B group reached MR4 faster. In the 3 months, 6 months and 12 months after the demarcation point (TKI 12 months), the A group was much less easy to obtain MR4 (P<0.05) than the B group. Through survival analysis, there were more patients in the B group than the A group at different time points to reach MR4, and the difference was statistically significant (P<0.01). The single factor analysis showed that the splenomegaly (below rib edge)> 10cm (P<0.01) and lactate dehydrogenase > 400 U/L (P<0.05) were the long-term warning factors for patients. Multivariate analysis showed that the size of the spleen was an independent factor (P<0.01) to affect the prognosis of the patients who had been warned for 12 months. CONCLUSION Patients at 12 months warning effect are slower and less easier to get DMR, which has a poor long-term prognosis. The size of the spleen in the patient at warning for 12 months of treatment effect can predict the relatively poor long-term prognosis. For a patient with a 12 months response to the warning, an early replacement therapy is available on the basis of combining other factors..
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Affiliation(s)
- Chen-Yuan Hu
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Di Yu
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Bing Zhan
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Ya-Hui Han
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Huan-Xin Zhang
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Zhen-Yu Li
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Ling-Yu Zeng
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Zhi-Ling Yan
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China
| | - Kai-Lin Xu
- Department of Hematology, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, Jiangsu Province, China . E-mail:
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Yu W, Wang B, Zhan B, Li Q, Li Y, Zhu Z. Statin Therapy Improved Long-Term Prognosis in Patients With Major Non-Cardiac Vascular Surgeries: A Systematic Review and Meta-Analysis. J Vasc Surg 2018. [DOI: 10.1016/j.jvs.2018.09.010] [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: 10/28/2022]
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12
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Zhan B, Zhu W. Physical Activity Policy for Older Adults in China. Med Sci Sports Exerc 2018. [DOI: 10.1249/01.mss.0000535781.34220.ca] [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: 11/21/2022]
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13
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Zhao J, Su C, Wang H, Wang Z, Zhan B. New Evidence on the Effect of Medical Insurance on the Obesity Risk of Rural Residents: Findings from the China Health and Nutrition Survey (CHNS, 2004-2011). Int J Environ Res Public Health 2018; 15:E383. [PMID: 29473873 PMCID: PMC5858452 DOI: 10.3390/ijerph15020383] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 02/15/2018] [Accepted: 02/16/2018] [Indexed: 12/17/2022]
Abstract
The obesity rate in China has risen significantly in the past few decades. While a number of causes for the rise in obesity have been explored, little attention has been paid to the role of health insurance per se. This study aims to investigate the impact of health insurance on the risk of obesity in rural China using longitudinal data from the China Health and Nutrition Survey (CHNS). We employed pooled ordinary least squares (OLS), probit estimation, and pooled two-stage least squares (2SLS) for an instrumental variable (IV). The IV model revealed that New rural cooperative medical insurance (NRCMS) participation had a significant positive impact on people's tendency towards unhealthy lifestyles, for instances, high-fat food (8.01% for female and 7.35% for male), cigarette smoking (25% for male), heavy drinking (25% for female), sedentary activity (6.48 h/w for female and 6.48 h/w for male), waist circumference (1.97 cm for female and 1.80 cm for male), body mass index (0.58 kg/m² for female), which in turn leads to an elevated probability of general obesity (51% for female) and abdominal obesity (24% for female and 20% for male). An "ex ante moral hazard" is prevalent in rural China, which should not be ignored by policymakers so as to minimize the related low efficiency in the process of promoting the universal coverage of insurance.
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Affiliation(s)
- Jian Zhao
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Chang Su
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Huijun Wang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Zhihong Wang
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
| | - Bing Zhan
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
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Knight JM, Zingales B, Bottazzi ME, Hotez P, Zhan B. Limited antigenic variation in the Trypanosoma cruzi candidate vaccine antigen TSA-1. Parasite Immunol 2015; 36:708-12. [PMID: 25040249 DOI: 10.1111/pim.12130] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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: 04/17/2014] [Accepted: 07/10/2014] [Indexed: 11/27/2022]
Abstract
Chagas disease (American trypanosomiasis caused by Trypanosoma cruzi) is one of the most important neglected tropical diseases in the Western Hemisphere. The toxicities and limited efficacies of current antitrypanosomal drugs have prompted a search for alternative technologies such as a therapeutic vaccine comprised of T. cruzi antigens, including a recombinant antigen encoding the N-terminal 65 kDa portion of Trypomastigote surface antigen-1 (TSA-1). With at least six known genetically distinct T. cruzi lineages, variability between the different lineages poses a unique challenge for the development of broadly effective therapeutic vaccine. The variability across the major lineages in the current vaccine candidate antigen TSA-1 has not previously been addressed. To assess the variation in TSA-1, we cloned and sequenced TSA-1 from several different T. cruzi strains representing three of the most clinically relevant lineages. Analysis of the different alleles showed limited variation in TSA-1 across the different strains and fit with the current theory for the evolution of the different lineages. Additionally, minimal variation in known antigenic epitopes for the HLA-A 02 allele suggests that interlineage variation in TSA-1 would not impair the range and efficacy of a vaccine containing TSA-1.
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Affiliation(s)
- J M Knight
- Southwest Electronic Energy Medical Research Institute, Stafford, TX, USA; Departments of Pediatrics and Molecular Virology and Microbiology, National School of Tropical Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, TX, USA
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15
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Jun L, Ying Y, Zhan B. Experience in the application of active fixation spiral leads in 48 patients with right ventricular outflow tract septum pacing. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.517] [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: 11/04/2022]
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16
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Zhu XC, Zhao GX, Wang L, Dong F, Lei T, Zhan B. [Hyperspectrum based prediction model for nitrogen content of apple flowers]. Guang Pu Xue Yu Guang Pu Fen Xi 2010; 30:416-420. [PMID: 20384136] [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: 05/29/2023]
Abstract
The present paper aims to quantitatively retrieve nitrogen content in apple flowers, so as to provide an important basis for apple informationization management. By using ASD FieldSpec 3 field spectrometer, hyperspectral reflectivity of 120 apple flower samples in full-bloom stage was measured and their nitrogen contents were analyzed. Based on the apple flower original spectrum and first derivative spectral characteristics, correlation analysis was carried out between apple flowers original spectrum and first derivative spectrum reflectivity and nitrogen contents, so as to determine the sensitive bands. Based on characteristic spectral parameters, prediction models were built, optimized and tested. The results indicated that the nitrogen content of apple was very significantly negatively correlated with the original spectral reflectance in the 374-696, 1 340-1 890 and 2 052-2 433 nm, while in 736-913 nm they were very significantly positively correlated; the first derivative spectrum in 637-675 nm was very significantly negatively correlated, and in 676-746 nm was very significantly positively correlated. All the six spectral parameters established were significantly correlated with the nitrogen content of apple flowers. Through further comparison and selection, the prediction models built with original spectral reflectance of 640 and 676 nm were determined as the best for nitrogen content prediction of apple flowers. The test results showed that the coefficients of determination (R2) of the two models were 0.825 8 and 0.893 6, the total root mean square errors (RMSE) were 0.732 and 0.638 6, and the slopes were 0.836 1 and 1.019 2 respectively. Therefore the models produced desired results for nitrogen content prediction of apple flowers with average prediction accuracy of 92.9% and 94.0%. This study will provide theoretical basis and technical support for rapid apple flower nitrogen content prediction and nutrition diagnosis.
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Affiliation(s)
- Xi-Cun Zhu
- College of Resources and Environment, Shandong Agricultural University, Tai'an 271018, China.
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17
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Zhu XC, Zhao GX, Dong F, Wang L, Lei T, Zhan B. [Monitoring models for phosphorus content of apple flowers based on hyperspectrum]. Ying Yong Sheng Tai Xue Bao 2009; 20:2424-2430. [PMID: 20077700] [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: 05/28/2023]
Abstract
By using ASD FieldSpec 3 field spectrometer, the hyperspectral reflectance of apple flowers at full-blooming stage was measured under laboratory conditions, and the correlations of the hyperspectral reflectance with the phosphorus content of apple flowers were analyzed based on the original spectrum and the first derivative spectral characteristics of the flowers. The sensitive wavebands were determined, the characteristic spectral parameters were constructed, and the monitoring models for the phosphorus content of apple flowers were established accordingly. Correlation analysis showed that the phosphorus content of apple flowers was significantly positively correlated with the original spectral reflectance at 350-370 nm, 670-1385 nm, and 1620-1760 nm, and the first derivative reflectance at 500-520 nm, and significantly negatively correlated with the first derivative reflectance at 670-730 nm. The spectral parameters DVI (936, 676), DVI (977, 676), NDVI (936, 676) and NDVI (977, 676) had close correlations with the phosphorus content of apple flowers, the correlation coefficients being all > 0.77. By using these spectral parameters as independent variables, four monitoring models for the phosphorus content of apple flowers were established, among which, the model with NDVI (936, 676) as the variable was validated as the best monitoring model, its determination coefficient was the highest (R2 = 0.9385), root mean square error and relative error were the smallest (RMSE = 0.6883, and RE = 7.6%), and prediction accuracy reached 92.4%.
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Affiliation(s)
- Xi-Cun Zhu
- College of Resources and Environment, Shandong Agricultural University, Tai'an 271018, Shandong, China.
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Brender J, Zhan B, Langlois P, Suarez L. Residential Proximity to Waste Sites and Industrial Facilities and Chromosomal Anomalies in Offspring. Am J Epidemiol 2006. [DOI: 10.1093/aje/163.suppl_11.s156-d] [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: 11/12/2022] Open
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19
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Zhan B, Hawdon J, Shan Q, Ren H, Qiang H, Xiao SH, Li TH, Feng Z, Hotez P. Construction and analysis of cDNA library of Necator americanus third stage larvae. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 18:26-8. [PMID: 12567467] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To obtain the genetic information on Necator americanus and to search for the purpose genes. METHODS mRNA was isolated from the third stage larvae of Necator americanus maintained in hamsters. Double strand cDNA was synthesized and ligated to lambda ZAPII vector to construct the cDNA library. Expressed sequence tages (ESTs) were obtained by single pass sequencing of randomly isolated cDNA clones from the established library. RESULTS A cDNA library of N. americanus was successfully constructed with high recombinant efficiency. The titer of unamplified library was 1 x 10(7). The insert size was about 750-3,000 bp. Of 11 ESTs obtained from the library, 7 have a significant homology with certain functional genes. CONCLUSION A high quality and high representative cDNA library of N. americanus was constructed at the first time and some functional genes were identified from the library by ESTs.
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Affiliation(s)
- B Zhan
- Institute of Parasitic Diseases, Chinese Academy of Preventive Medicine, WHO Collaborating Center for Malaria, Schistosomiasis and Filariasis, Shanghai, 200025
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Zhan B, Xiao SH, Li TH. [Endemic status of hookworm disease and progress in vaccine preparation]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 18:182-5. [PMID: 12567706] [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: 02/28/2023]
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21
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Wang Q, Yang G, Yang C, Zhan B, Yang R. [The Predictive Role of Vascular Endothelial Growth Factor and Estradiol in Infertile Patients with Ovarian Hyperstimulation Syndrome]. Sichuan Da Xue Xue Bao Yi Xue Ban 2003; 34:565-7. [PMID: 12910723] [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: 03/04/2023]
Abstract
OBJECTIVE To determine the predictive values of vascular endothelial growth factor (VEGF) and estradiol (E2) in patients with ovarian hyperstimulation syndrome (OHSS) and to go further into the relevant pathogenisis. METHODS Blood samples were collected from 51 high risk patients and 30 control patients undergoing superovulation on the day of hCG administration and follicular fluid at the time of egg retrieval. The high risk patients were divided into two groups[OHSS group (n=11) and non-OHSS group (n=40)] VEGF and E2 were detected and then differences between the high risk groups and control group were analyzed. RESULTS There wa no significant difference in VEGF between high risk groups and control group on the day of hCG injection (P>0.05). After hCG administration, serum VEGF concentrations rose significantly in OHSS group (P<0.01). The serum and follicular fluid VEGF levels were obviously higher than those of the control group. The follicular fluid concentrations of VEGF were significantly higher than that of serum in every group (P<0.001). E2 concentrations of OHSS group rose obviously after hCG injection (P<0.01) and were significantly higher than those of the control group (P<0.01), but there no statistically significant change in E2 concentrations in non-OHSS groups (P>0.05). CONCLUSION The results from this study show that the serum and follicular fluid VEGF concentrations are significantly higher than those of control group on the day of ovum retrieval, indicating that VEGF may play an important role in the pathogenesis of OHSS. It cannot predict the risk of OHSS on the day hCG administration, but it may be considered as a predictive marker for the development of OHSS after hCG administration. Serum VEGF concentrations in combination with consective E2 measurements can assist in predicting OHSS.
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Affiliation(s)
- Qingyi Wang
- Department of Gynecology, Maternity and Child Health Hospital, Zhuhai 519000, China
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Li T, Zhan B, Hawdon JM, Gong X, Xiao S, Shan Q, Feng Z, Hotez PJ. [Sequencing of cytochrome C oxidase 1 gene of Ancylostoma duodenale and Necator americanus]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 17:81-3. [PMID: 12563786] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
AIM To identify the genetic diversity between Ancylostoma duodenale and Necator americanus. METHODS Mitochondrial cytochrome C oxidase subunit 1 (CO1) gene was amplified from genomic DNA of human hookworms collected from infected patients in Hejiang County, Sichuan Province, and the purified PCR products were directly sequenced by using Licor auto-sequencer. RESULTS The PCR products were about 700 bp. Alignment of CO1 gene fragment sequences showed 89.7% similarity between Ancylostoma duodenale and Necator americanus, but still certain nucleotide variations (10.3%) existed. CONCLUSION CO1 gene sequence can be used as a marker to identify the two species of human hookworms.
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Affiliation(s)
- T Li
- Institute of Parasitic Diseases, Chinese Academy of Preventive Medicine, Shanghai 200025
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Zhan B, Li T, Xiao S, Zheng F, Hawdon JM. Species-Specific Identification of Human Hookworms by PCR of the Mitochondrial Cytochrome Oxidase I Gene. J Parasitol 2001. [DOI: 10.2307/3285278] [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: 11/10/2022] Open
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Abstract
Significant differences in the life histories of the human hookworms Ancylostoma duodenale and Necator americanus necessitate their differentiation for epidemiological studies and the design of control programs. Current methods of identification require time-consuming, labor-intensive techniques. A polymerase chain reaction (PCR)-based method that enables rapid species identification is described. The mitochondrial cytochrome oxidase I genes of both species were sequenced, and species-specific primer sets were designed. The primers were used in PCR to amplify 585-bp fragments of the cytochrome oxidase gene from individual hookworm eggs, larvae, and adults. The technique was also able to identify mixed infections containing equal amounts of eggs from each species. The technique is rapid, technically simple, and sensitive and will permit the accurate identification of human hookworms in epidemiological field studies.
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Affiliation(s)
- B Zhan
- Department of Microbiology and Tropical Medicine, George Washington University Medical Center, Washington, DC 20037, USA
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Abstract
Twenty-one to 58 individual Necator americanus were sampled from each of four villages in south-western China. Each nematode was sequenced for 588 bp of the mitochondrial cytochrome oxidase I gene. Allelic and nucleotide diversity varied two-fold among villages. Overall FST among populations was approximately 0.28, but this large value resulted from one low-diversity population that had a large genetic distance to the other three populations (F(ST) = 0.10 without that population). There was no correlation between geographical and genetic distance among sites. Thus, the genetic structure of this species in China may be characterized by variable effective sizes and uneven movement among sites. We discuss the implications of this genetic structure for vaccine development and the spread of drug resistance in human hookworms, and compare the genetic structure of hookworms with that of other nematodes.
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Affiliation(s)
- J M Hawdon
- Department of Microbiology and Tropical Medicine, George Washington University Medical Center, 725 Ross Hall, 2300 Eye St. NW, Washington DC 20037, USA.
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Zhan B, Hawdon J, Shan Q, Ren H, Qiang H, Gong X, Xiao S, Hotez P. Screening and sequential comparison of Ancylostoma-secreted protein 1 and 2 (ASP1, ASP2) genes from different species of hookworm. Parasitol Int 1998. [DOI: 10.1016/s1383-5769(98)80563-1] [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: 10/18/2022]
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Zhang X, Zhan B, Wang L. [Aspermia of epididymal blockage treated with epididymal tubule vasostomy]. Zhonghua Wai Ke Za Zhi 1996; 34:623-5. [PMID: 9590741] [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: 02/07/2023]
Abstract
To improve curative effect, we performed aspermia of epididymal blockage on 21 patients with epididymal tubule vasostomy using microsurgical technique between 1985 and 1994. In the 21 patients 20 showed sperm, and 18 increased sperm numbers over 4 x 10(7)/ml postoperation. The wives of 12 patients became reproductive. The selection of 3 different anastomotic ways using microsurgical technique could obviously improve curative effect, according to the dilated degree of epididymal tubule. The selection of anastomotic ways and liquid-passed test of deferential dust was also discussed.
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Affiliation(s)
- X Zhang
- Department of Urology, First Affiliated Hospital of Hubei Medical University, Wuhan
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Zhang J, Zhan B, Yao X, Gao Y, Shong J. [Antiviral activity of tannin from the pericarp of Punica granatum L. against genital Herpes virus in vitro]. Zhongguo Zhong Yao Za Zhi 1995; 20:556-8, 576, inside backcover. [PMID: 8679095] [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: 02/01/2023]
Abstract
Based on cell culture techniques this study has demonstrated that tannin from the pericarp of Punica granatum is an effective component against genital herpes virus (HSV-2). The tannin not only inhibits HSV-2 replication, but also shows stronger effects of killing virus and blocking its absorption to cells.
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Affiliation(s)
- J Zhang
- Department of Urology, First Affiliated Hospital of Hubei Medical University, Wuhan
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Liu X, Zhan B, Tomoyoshi T, Masanori T. Immunohistochemical study of HNK-1 (Leu-7) antigen in prostate cancer and its clinical significance. Chin Med J (Engl) 1995; 108:516-21. [PMID: 7555270] [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: 01/25/2023] Open
Abstract
Anti-HNK-1 monoclonal antibody (MAb) was reactive with non-cancerous and cancerous prostatic epithelia, as well as natural killer cells, myelinated nerves and cells from APUD systems. The expression of HNK-1 antigen on prostate cancer was investigated immunohistochemically by avidinbiotin-peroxidase complex (ABC) method with anti-HNK-1 MAb to clarify the relationship between anti-HNK-1 immunostaining of the cancerous tissue and the tumor differentiation, and that between the former and the survival rate of patients. Of 52 patients with prostate cancer, 49 were reactive with anti-HNK-1 MAb, the positive rate being 94%. The well differentiated cancer showed the highest percentage of positive cancer cells and the strongest staining, while the poorly differentiated cancer had the lowest percentage of positive cancer cells and the weakest staining. HNK-1 antigen was highly expressed on prostate cancer, and the better differentiated the cancer, the more HNK-1 antigen expressed. We also analyzed the total 5-year survival rate of the 52 patients, and the average 5-year survival rate and non-progression rate of 32 patients in stage D2 who had received only endocrinotherapy. Significantly higher survival rate and non-progression rate were observed in the group with more than two-thirds positive cancer cells as compared with the group with less than two-thirds positive cancer cells. The results suggest that the expression of HNK-1 antigen on prostate cancer may be a useful prognostic factor for patients with prostate cancer.
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Affiliation(s)
- X Liu
- Department of Urology, First Affiliated Hospital, Hubei Medical University, Wuhan
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Zhan B, Wang L, Zhang X, Sun Y, Chen M. Homotransplantation of testis: experimental study and clinical practice (13 case reports). Transplant Proc 1988; 20:918-21. [PMID: 3347960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- B Zhan
- Urological Laboratory, First Affiliated Hospital, Hubei Medical College, Wuhan, China
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