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Zhao CX, Zhong FY, Dong JX, Ge H, Bu J. [Application of machine learning in risk assessment for acute coronary syndrome]. Zhonghua Xin Xue Guan Bing Za Zhi 2024; 52:311-315. [PMID: 38514336 DOI: 10.3760/cma.j.cn112148-20231024-00375] [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] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Affiliation(s)
- C X Zhao
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - F Y Zhong
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - J X Dong
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - H Ge
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - J Bu
- Department of Cardiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
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Shao S, Liu HX, Jiang Y, Li S, Wei DL, Zhu J, Wang C, Zhao CX. [Short-term substitution of calcineurin inhibitors (CNI) with recombinant humanized anti-CD25 monoclonal antibody (Basiliximab) as aGVHD prophylaxis in CNI intolerant patients after allogeneic hematopoietic stem cell transplantation]. Zhonghua Xue Ye Xue Za Zhi 2024; 45:115-120. [PMID: 38604786 DOI: 10.3760/cma.j.cn121090-20230519-00201] [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] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Objectives: To investigate the efficacy of short-term substitution of recombinant humanized anti-CD25 monoclonal antibody (Basiliximab) as acute GVHD (aGVHD) prophylaxis in calcineurin inhibitors (CNI) intolerant patients following allogeneic hematopoietic stem cell transplantation (allo-HSCT) . Methods: This study included 17 patients with refractory malignant hematological disorders who underwent salvage allo-HSCT at the Bone Marrow Transplantation Department of Shanghai Zhaxin Traditional Chinese and Western Medicine Hospital from August 2021 to August 2022 and were treated with Baliximab to prevent aGVHD due to severe adverse reactions to CNI. There were seven men and ten women, with a median age of 43 years (18-67). Following the discontinuation of CNI, Basiliximab was administered at a dose of 1 mg/kg once weekly until CNI or mTOR inhibitors were resumed. Results: Basiliximab was started at an average of 5 (1-32) days after HSCT. The median duration of substitution was 20 (7-120) days. All had neutrophil engraftment within a median of 12 (10-17) days. Thirteen patients had platelet engraftment after a median of 13 (11-20) days. Four patients did not develop stable platelet engraftment. Eight patients (47.1% ) developed Grade Ⅱ-Ⅳ aGVHD, while four (23.6% ) developed Grade Ⅲ/Ⅳ aGVHD. Only one patient died from aGVHD. Before the end of the followup period, seven of 17 patients died. The longest followup period of the survivors was 347 days, and the median survival rate was not met. The overall survival (OS) rate at six months was 62.6%. Among the 17 patients, 13 (76.4% ) experienced cytomegalovirus reactivation, 7 (41.2% ) experienced EB virus activation, and no cytomegalovirus disease was observed. Conclusions: When CNI intolerance occurs during allo-HSCT, short-term replacement with Baliximab can be used as an alternative to prevent aGVHD.
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Affiliation(s)
- S Shao
- Department of Hematopoietic Stem Cell Transplantation, Shanghai Zhaxin Traditional Chinese and Western Medicine Hospital, Shanghai 200040, China
| | - H X Liu
- Department of Hematopoietic Stem Cell Transplantation, Shanghai Zhaxin Traditional Chinese and Western Medicine Hospital, Shanghai 200040, China
| | - Y Jiang
- Department of Hematopoietic Stem Cell Transplantation, Shanghai Zhaxin Traditional Chinese and Western Medicine Hospital, Shanghai 200040, China
| | - S Li
- Department of Hematopoietic Stem Cell Transplantation, Shanghai Zhaxin Traditional Chinese and Western Medicine Hospital, Shanghai 200040, China
| | - D L Wei
- Department of Hematopoietic Stem Cell Transplantation, Shanghai Zhaxin Traditional Chinese and Western Medicine Hospital, Shanghai 200040, China
| | - J Zhu
- Department of Hematopoietic Stem Cell Transplantation, Shanghai Zhaxin Traditional Chinese and Western Medicine Hospital, Shanghai 200040, China
| | - C Wang
- Department of Hematopoietic Stem Cell Transplantation, Shanghai Zhaxin Traditional Chinese and Western Medicine Hospital, Shanghai 200040, China
| | - C X Zhao
- Department of Hematopoietic Stem Cell Transplantation, Shanghai Zhaxin Traditional Chinese and Western Medicine Hospital, Shanghai 200040, China
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Liu HX, Wei DL, Shao S, Jiang Y, Li S, Zhu J, Wang C, Zhao CX. [Impact of immunosuppression intensified conditioning regimen for patients with strong positive pre-transplantation donor-specific anti-HLA antibodies (DSAs) undergoing haploidentical hematopoietic stem cell transplantation]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:654-659. [PMID: 37803839 PMCID: PMC10520227 DOI: 10.3760/cma.j.issn.0253-2727.2023.08.007] [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] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Indexed: 10/08/2023]
Abstract
Objective: To explore the efficacy of immunosuppression intensified conditioning regimen in patients who have strongly positive donor-specific Anti-HLA antibodies (DSAs) and received a haploidentical hematopoietic stem cell transplantation (haplo-HSCT) . Methods: Clinical data of 10 patients with strongly positive pretransplant DSAs (defined as MFI ≥10000) were retrospectively analyzed in this study. All of them received a haplo-HSCT in the Hematology Department of Shanghai Zhaxin Traditional Chinese & Western Medicine Hospital. Results: ① Of all ten patients, three were males, and seven were females, with a median age of 53.5 (36-64) years. Of the 10 patients, three were diagnosed with acute myeloid leukemia, two were myelodysplastic syndromes (MDS), two were chronic myelomonocytic leukemia (CMML), two were in an accelerated phase of chronic myeloid leukemia (CML-AP), and one was primary myelofibrosis (PMF). ② Conditioning regimen consisted of fludarabine (Flu) /busulfan (Bu) combined with whole-body irradiation (TBI) /cyclophosphamide (Cy). ③ On the seventh day after transplantation, the median pretransplant DSA level was MFI 15 999 (10 210-23 417) and 10 787 (0-22 720). ④ Eight patients acquired hematopoietic reconstitution; the median time of neutrophil engraftment was 14 (10-16) days; and 18 (14-20) days for platelet engraftment. After a median follow-up of 12.5 (1.5-27) months, primary graft failure was found in one patient and another with poor graft function. Seven patients remained in a disease remission state, and all were DSA-negative. Conclusions: An intensified immunosuppression conditioning regimen can efficiently decrease the level of donor-specific anti-HLA antibodies (DSAs), leading to good short-term efficacy.
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Affiliation(s)
- H X Liu
- Department of Hematology, Shanghai Zhaxin Traditional Chinese& Western Medicine Hospital, Shanghai 200435, China
| | - D L Wei
- Department of Hematology, Shanghai Zhaxin Traditional Chinese& Western Medicine Hospital, Shanghai 200435, China
| | - S Shao
- Department of Hematology, Shanghai Zhaxin Traditional Chinese& Western Medicine Hospital, Shanghai 200435, China
| | - Y Jiang
- Department of Hematology, Shanghai Zhaxin Traditional Chinese& Western Medicine Hospital, Shanghai 200435, China
| | - S Li
- Department of Hematology, Shanghai Zhaxin Traditional Chinese& Western Medicine Hospital, Shanghai 200435, China
| | - J Zhu
- Department of Hematology, Shanghai Zhaxin Traditional Chinese& Western Medicine Hospital, Shanghai 200435, China
| | - C Wang
- Department of Hematology, Shanghai Zhaxin Traditional Chinese& Western Medicine Hospital, Shanghai 200435, China
| | - C X Zhao
- Department of Hematology, Shanghai Zhaxin Traditional Chinese& Western Medicine Hospital, Shanghai 200435, China
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An XL, Xu MR, Pan XF, Cai GJ, Zhao CX, Li H, Ye ZL, Zhu YG, Su JQ. Local environment, surface characteristics and stochastic processes shape the dynamics of urban dustbin surface microbiome. Environ Int 2023; 177:108004. [PMID: 37295164 DOI: 10.1016/j.envint.2023.108004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 05/24/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
Dustbins function as critical infrastructures for urban sanitation, creating a distinct breeding ground for microbial assemblages. However, there is no information regarding the dynamics of microbial communities and the underlying mechanism for community assembly on dustbin surfaces. Here, surface samples were collected from three sampling zones (business building, commercial street and residential community) with different types (kitchen waste, harmful waste, recyclables, and others) and materials (metallic and plastic); and distribution pattern and assembly of microbial communities were investigated by high-throughput sequencing. Bacterial and fungal communities showed the distinct community variations across sampling zones and waste sorting. Core community and biomarker species were significantly correlated with the spatial distribution of overall community. The detection of pathogens highlighted the potential risk of surface microbiome. Human skin, human feces and soil biomes were the potential source environments of the surface microbiomes. Neutral model prediction suggested that microbial community assembly was significantly driven by stochastic processes. Co-association patterns varied with sampling zones and waste types, and neutral amplicon sequence variants (ASVs) that fall within the 95 % confidence intervals of neutral model were largely involved in the stability of microbial networks. These findings improve our understanding of the distribution pattern and the underlying assembly of microbial community on the dustbin surface, thus enabling prospective prediction and assessment of urban microbiomes and their impacts on human health.
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Affiliation(s)
- Xin-Li An
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Mei-Rong Xu
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiao-Fang Pan
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Guan-Jing Cai
- College of Science, Shantou University, Shantou, 515063, China
| | - Cai-Xia Zhao
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Hu Li
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Zhi-Long Ye
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yong-Guan Zhu
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; State Key Lab of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jian-Qiang Su
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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Jin MK, Zhang Q, Yang YT, Zhao CX, Li J, Li H, Qian H, Zhu D, Zhu YG. Exposure to cypermethrin pesticide disturbs the microbiome and disseminates antibiotic resistance genes in soil and the gut of Enchytraeus crypticus. J Hazard Mater 2023; 449:131026. [PMID: 36812731 DOI: 10.1016/j.jhazmat.2023.131026] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/21/2023] [Accepted: 02/15/2023] [Indexed: 06/18/2023]
Abstract
Worldwide, pyrethroids, such as cypermethrin, are the second most applied group of insecticides, however, their effects on the soil microbiome and non-target soil fauna remain largely unknown. Herein, we assessed the change of bacterial communities and antibiotic resistance genes (ARGs) of soil and in the gut of the model soil species Enchytraeus crypticus using a combination of 16S rRNA gene amplicon sequencing, and high-throughput qPCR of ARGs. Results indicate that cypermethrin exposure enriches potential pathogens (e.g. Bacillus anthracis) in the soil and gut microbiome of E. crypticus, heavily disrupting the latter's microbiome structure, and even disrupts activities of the E. crypticus immune system. The co-occurrence of potential pathogens (e.g. Acinetobacter baumannii), ARGs, and mobile genetic elements (MGEs) revealed the increased risk of pathogenicity as well as antibiotic resistance in potential pathogens. Moreover, structural equation modeling demonstrated that the dissemination of ARGs was not only promoted by MGEs, but also by the ratio of the core to non-core bacterial abundance. Collectively, these results provide an in-depth view of the previously unappreciated environmental risk of cypermethrin on the dissemination of ARGs in the soil and non-target soil fauna.
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Affiliation(s)
- Ming-Kang Jin
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Qi Zhang
- College of Environment, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310032, China
| | - Yu-Tian Yang
- Centre for Environmental Policy, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | - Cai-Xia Zhao
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Jian Li
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Hongjie Li
- Key Laboratory of Biotechnology in Plant Protection of Ministry of Agriculture and Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo 315211, China; State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Plant Virology, Ningbo University, Ningbo 315211, China
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310032, China.
| | - Dong Zhu
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China
| | - Yong-Guan Zhu
- Key Laboratory of Urban Environment and Health, Ningbo Observation and Research Station, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China; Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control, CAS Haixi Industrial Technology Innovation Center in Beilun, Ningbo 315830, China; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing, China
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Wang LY, Zhao CX, Wang F, Miao K, Wang DW. [Early identification, diagnosis and treatment of COVID-19 related myocarditis, save more lives]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:1-5. [PMID: 36776126 DOI: 10.3760/cma.j.cn112148-20230118-00036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Affiliation(s)
- L Y Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C X Zhao
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - F Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - K Miao
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - D W Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Zhao CX, Su XX, Xu MR, An XL, Su JQ. Uncovering the diversity and contents of gene cassettes in class 1 integrons from the endophytes of raw vegetables. Ecotoxicol Environ Saf 2022; 247:114282. [PMID: 36371907 DOI: 10.1016/j.ecoenv.2022.114282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/22/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Rapid spread of antibiotic resistance genes (ARGs) in pathogens is threatening human health. Integrons allow bacteria to integrate and express foreign genes, facilitating horizontal transfer of ARGs in environments. Consumption of raw vegetables represents a pathway for human exposure to environmental ARGs. However, few studies have focused on integron-associated ARGs in the endophytes of raw vegetables. Here, based on the approach of qPCR and clone library, we quantified the abundance of integrase genes and analyzed the diversity and contents of resistance gene cassettes in class 1 integrons from the endophytes of six common raw vegetables. The results revealed that integrase genes for class 1 integron were most prevalent compared with class 2 and class 3 integron integrase genes (1-2 order magnitude, P < 0.05). The cucumber endophytes harbored a higher absolute abundance of integrase genes than other vegetables, while the highest bacterial abundance was detected in cabbage and cucumber endophytes. Thirty-two unique resistance gene cassettes were detected, the majority of which were associated with the genes encoding resistance to beta-lactam and aminoglycoside. Antibiotic resistance gene cassettes accounted for 52.5 % of the functionally annotated gene cassettes, and blaTEM-157 and aadA2 were the most frequently detected resistance cassettes. Additionally, carrot endophytes harbored the highest proportion of antibiotic resistance gene cassettes in the class 1 integrons. Collectively, these results provide an in-depth view of acquired resistance genes by integrons in the raw vegetable endophytes and highlight the potential health risk of the transmission of ARGs via the food chain.
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Affiliation(s)
- Cai-Xia Zhao
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Xuan Su
- Interdisciplinary Research Center for Agriculture Green Development in Yangtze River Basin, College of Resources and Environment, Southwest University, 400715 Chongqing, China
| | - Mei-Rong Xu
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin-Li An
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Jian-Qiang Su
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
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Jin MK, Yang YT, Zhao CX, Huang XR, Chen HM, Zhao WL, Yang XR, Zhu YG, Liu HJ. ROS as a key player in quinolone antibiotic stress on Arabidopsis thaliana: From the perspective of photosystem function, oxidative stress and phyllosphere microbiome. Sci Total Environ 2022; 848:157821. [PMID: 35931174 DOI: 10.1016/j.scitotenv.2022.157821] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/31/2022] [Accepted: 07/31/2022] [Indexed: 06/15/2023]
Abstract
With the increasing use of antibiotics, their ecological impacts have received widespread attention. However, research on the toxicity of quinolone antibiotics is still limited, especially regarding the oxidative stress and phyllosphere of plants. In this study, the toxic effects of enrofloxacin, norfloxacin, and levofloxacin on Arabidopsis thaliana and their underlying mechanisms were investigated. The toxicity of the three quinolone antibiotics decreased in the following order: enrofloxacin > norfloxacin > levofloxacin. Physiological cellular changes, such as plasmolysis and chloroplast swelling, were observed using electron microscopy. Photosynthetic efficiency was inhibited with a decline in the effective photochemical quantum yield of photosystem II (Y(II)) and non-photochemical quenching (NPQ), indicating that quinolone antibiotics might reduce light energy conversion efficiency and excess light energy dissipation. Oxidative stress occurred in A. thaliana after quinolone antibiotic treatment, with an increase in reactive oxygen species (ROS) levels and malondialdehyde (MDA) content. High ROS levels stimulated the over-expression of superoxide-responsive genes for self-protection. Structural equation modeling (SEM) analysis showed that photosynthesis inhibition and cellular damage caused by oxidative stress were critical factors for growth inhibition, suggesting that the antioxidant response activated by ROS might be a potential mechanism. Furthermore, the diversity of the phyllospheric microbial communities decreased after enrofloxacin exposure. Additionally, specific microbes were preferentially recruited to the phyllosphere because of the higher ROS levels.
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Affiliation(s)
- Ming-Kang Jin
- School of Environmental Science and Engineering, Instrumental Analysis Center, Zhejiang Gongshang University, Hangzhou 310018, PR China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Yu-Tian Yang
- Centre for Environmental Policy, Faculty of Natural Sciences, Imperial College London, London SW7 2AZ, UK
| | - Cai-Xia Zhao
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Xin-Rong Huang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Han-Mei Chen
- School of Environmental Science and Engineering, Instrumental Analysis Center, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Wen-Lu Zhao
- School of Environmental Science and Engineering, Instrumental Analysis Center, Zhejiang Gongshang University, Hangzhou 310018, PR China
| | - Xiao-Ru Yang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Yong-Guan Zhu
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, PR China; State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Hui-Jun Liu
- School of Environmental Science and Engineering, Instrumental Analysis Center, Zhejiang Gongshang University, Hangzhou 310018, PR China; International Science and Technology Cooperation Platform for Low-Carbon Recycling of Waste and Green Development, Zhejiang Gongshang University, Hangzhou, Zhejiang 310012, PR China.
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An XL, Abass OK, Zhao CX, Xu MR, Pan T, Pu Q, Liao H, Li H, Zhu YG, Su JQ. Nanopore sequencing analysis of integron gene cassettes in sewages and soils. Sci Total Environ 2022; 817:152766. [PMID: 35007603 DOI: 10.1016/j.scitotenv.2021.152766] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 12/23/2021] [Accepted: 12/25/2021] [Indexed: 06/14/2023]
Abstract
Integrons are genetic elements that can facilitate rapid spread of antibiotic resistance by insertion and removal of genes. However, knowledge about the diversity and distribution of gene cassettes embedded in class 1 integron is still limited. In this study, we sequenced integron gene cassettes using nanopore sequencing and quantified antibiotic resistance genes (ARGs) and integrase genes in the manured soils and sewages of a bioreactor. The results showed that class 1 integron integrase genes were the most abundant in soils and sewages compared with class 2 and class 3 integrase genes. Long-term manure application exacerbated the enrichment of total ARGs, integrase genes and antibiotic resistance-associated gene cassettes, while antibiotics and heavy metals showed no impact on the overall resistome profile. Sewage treatment could efficiently remove the absolute abundance of integrase genes (~3 orders of magnitude, copies/L) and antibiotic resistance gene cassettes. The resistance gene cassettes mainly carried the ARGs conferring resistance to aminoglycoside and beta-lactams in soils and sewages, some of which were persistent during the sewage treatment. This study underlined that soil and sewage were potential reservoirs for integron-mediated ARGs transfer, indicating that anthropogenic activity played a vital role in the prevalence and diversity of resistance gene cassettes in integrons.
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Affiliation(s)
- Xin-Li An
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Olusegun K Abass
- School of Civil and Environmental Engineering, Nanyang Technological University, Nanyang Avenue, 639798, Singapore
| | - Cai-Xia Zhao
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; College of Resource and Environmental Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Mei-Rong Xu
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Ting Pan
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiang Pu
- Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550081, China
| | - Hu Liao
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hu Li
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Yong-Guan Zhu
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; State Key Lab of Urban and Regional Ecology, Research Center for Eco-environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian-Qiang Su
- Fujian Key Laboratory of Watershed Ecology, Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
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Gao Y, Zhao JQ, Zhao YY, Zhao CX, Shi JM, Li JG. [The effect of occupational stress on anxiety of nursing staff in a third-grade general hospital and mediating effect of job burnout]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:127-131. [PMID: 35255580 DOI: 10.3760/cma.j.cn121094-20210224-00106] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the mediating effect of job burnout of nursing staff in clinical departments on occupational stress and anxiety, and to provide scientific basis for the formulation of intervention measures to relieve anxiety. Methods: From November 2020 to January 2021, a cross-sectional survey was conducted to investigate the basic situation, occupational stress, job burnout and anxiety of 653 nursing staff in a third class A general hospital in Hebei Province. Spearman rank correlation was used to analyze the relationship between occupational stress, job burnout and anxiety, stepwise regression and mediating effect model were used to verify the mediating effect of job burnout on the relationship between occupational stress and anxiety. Results: 551 valid questionnaires were collected with effective recovery of 84.38%. The incidence of high occupational stress was 68.06% (375/551) , the incidence of job burnout was 63.70% (351/551) [high, moderate and moderate were 11.07% (61/551) and 52.63% (290/551) respectively], and the incidence of anxiety was 55.72% (307/551) [mild, moderate and severe were 38.11% (210/551) , 8.53% (47/551) and 9.08% (50/551) respectively]. Occupational stress was positively correlated with job burnout and anxiety (r=0.545, 0.479) , and job burnout was positively correlated with anxiety (r=0.542, P<0.05) . The mediating effect analysis showed that occupational stress had a statistically significant effect on anxiety (c=0.509, P<0.001) , and the mediating effect of job burnout on the relationship between occupational stress and anxiety accounted for 44.99% of the total effect. Conclusion: The anxiety level of the nursing staff in this third-class A general hospital was relatively high. Job burnout has a mediating effect between occupational stress and anxiety, and anxiety of nursing staff can be alleviated by reducing occupational stress or job burnout.
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Affiliation(s)
- Y Gao
- School of Public Health, North China University of Science and Technology, Tangshan 063210, China
| | - J Q Zhao
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - Y Y Zhao
- First Hospital of Hebei Medical University, Shijiazhuang 050031, China
| | - C X Zhao
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - J M Shi
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - J G Li
- School of Public Health, North China University of Science and Technology, Tangshan 063210, China Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
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11
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Zhao CX, Liu P. [Follicle-stimulating hormone: new roles in metabolic regulation and aging]. Sheng Li Xue Bao 2021; 73:755-760. [PMID: 34708232] [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: 06/13/2023]
Abstract
Follicle-stimulating hormone (FSH) was once thought to play a role only in reproduction, promoting follicle development and maturation in women and spermgenesis in men. However, in recent ten years, FSH has been found to have new functions on metabolic regulation and aging. FSH regulates bone formation, fat metabolism, energy homeostasis, cholesterol production and cardiovascular disease by binding with its receptor FSHR. These newly discovered regulatory roles of FSH are exciting, as it is suggested that blocking FSH may have potential translational impacts on treatments of a series of age-related diseases, including osteoporosis, obesity, dyslipidemia, cardiovascular disease.
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Affiliation(s)
- Cai-Xia Zhao
- College of Basic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - Peng Liu
- College of Basic Medicine, Shanxi Medical University, Taiyuan 030001, China.
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12
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Bai LS, Xu JJ, Zhao CX, Chang YL, Dong YL, Zhang KG, Li YQ, Li YP, Ma ZQ, Liu XL. Enhanced hydrolysis of β-cypermethrin caused by deletions in the glycin-rich region of carboxylesterase 001G from Helicoverpa armigera. Pest Manag Sci 2021; 77:2129-2141. [PMID: 33336552 DOI: 10.1002/ps.6242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 12/07/2020] [Accepted: 12/17/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Carboxylesterase (CarE) is a major class of enzyme involved in the detoxification of toxic xenobiotics in various insect species. Previous work has shown that the carboxylesterase gene CarE001G found in Helicoverpa armigera is more active and can metabolize synthesized pyrethroids, such as β-cypermethrin, one of the commonly used commercial insecticides for lepidopteran pest control. In addition, CarE001G is very special as it has a very specific glycine-rich region located adjacent to its C-terminal. But whether mutations in this unique sequence can change the biochemistry and function of CarE001G are unknown. RESULTS In this study, four variants of CarE001G with different deletions in the glycine-rich region were obtained and functionally expressed in Escherichia coli. The recombinant proteins were purified and confirmed by Western blot and mass spectrometry analyses. These mutant enzymes showed high catalytic efficiency toward the model substrate α-naphthyl acetate. Inhibition study showed that β-cypermethrin had relatively strong inhibition on CarE activities. In vitro metabolism assay showed that the mutant enzymes significantly enhanced their metabolic activities toward β-cypermethrin with specific activities between 4.0 and 5.6 nmol L-1 min-1 mg-1 protein. Molecular docking analyses consistently demonstrated that deletion mutations in the glycine-rich region may facilitate the anchoring of the β-cypermethrin molecule in the active binding pocket of the mutant enzymes. CONCLUSION The data show that deletion mutations can cause qualitative change in the capacity of CarEs in the detoxification of β-cypermethrin. This indicates that deletion mutations in the glycine-rich region may have the potential to cause synthesized pyrethroid (SP) resistance in H. armigera in the future. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Li-Sha Bai
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
| | - Jing-Jing Xu
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
| | - Cai-Xia Zhao
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
| | - Ya-Li Chang
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
| | - Yan-Ling Dong
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
| | - Kai-Ge Zhang
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
| | - Yong-Qiang Li
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
| | - Yi-Ping Li
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
| | - Zhi-Qing Ma
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
| | - Xi-Li Liu
- College of Plant Protection, Northwest A&F University, Yangling, China
- State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling, China
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13
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Shi JM, Zhao JQ, Zhao CX, Zhang XN, Zheng H, Li JG. [The characteristics of spatial-temporal evolvement of pneumoconiosis in Hebei Province from 2009 to 2018]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:175-179. [PMID: 32306689 DOI: 10.3760/cma.j.cn121094-20190507-00182] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the temporal and spatial characteristics of pneumoconiosis in Hebei Province from 2009 to 2018, and to provide evidence for the policy development of pneumoconiosis prevention and control. Methods: In February 2019, a database of pneumoconiosis incidence from 2009 to 2018 in Hebei Province was built. The spatial-temporal distribution of pneumoconiosis in Hebei Province was displayed based on barycenter migration technology and spatial autocorrelation analysis. Results: A total of 6099 cases of pneumoconiosis were reported in Hebei Province from 2009 to 2018, the top 5 pneumoconiosis were silicosis(4399, 72.13%) , coal worker pneumoconiosis (1298 , 21.28%) , ceramics pneumoconiosis (224, 3.67%) , welding worker's pneumoconiosis(76, 1.25%) , and casting worker's pneumoconiosis(48, 0.79%). The focus of pneumoconiosis from 2009 to 2014 moved from Tangshan in the northeast to Zhangjiakou in the northwest, and moved to Chengde in the north from 2015 to 2017, and moved back to Tangshan in 2018. The incidence of pneumoconiosis was globally autocorrelation (P <0.05) from 2009 to 2011 and 2014 to 2018. The high-high gathering areas were located in Zhangjiakou, Chengde and other areas. Conclusion: The barycenter of pneumo- coniosis in hebei province from 2009 to 2018 is relatively stable, mainly locates in the northern part of Hebei Province over the years. There is an obvious regional aggregation, and the aggregation type is mainly high-high aggregation, which indicates that relevant departments should focus on strengthening the prevention and treat- ment of aggregation areas on the basis of overall planning.
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Affiliation(s)
- J M Shi
- Department of Epidemiology and Statistics, Hebei Medical University, Shijiazhuang 050017, China
| | - J Q Zhao
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - C X Zhao
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - X N Zhang
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - H Zheng
- Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
| | - J G Li
- Department of Epidemiology and Statistics, Hebei Medical University, Shijiazhuang 050017, China; Hebei Province Center for Disease Prevention and Control, Shijiazhuang 050021, China
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14
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Dong HM, Tao ZH, Duan YF, Huang F, Zhao CX. Coupled plasmon-phonon modes in monolayer MoS 2. J Phys Condens Matter 2020; 32:125703. [PMID: 31746786 DOI: 10.1088/1361-648x/ab5907] [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: 06/10/2023]
Abstract
We present a theoretical study of the plasmon-phonon coupling in a suspended monolayer MoS2 and a MoS2 substrate system using a diagrammatic self-consistent field theory. The four coupled plasmon-phonon modes and the four plasmon-surface phonon modes are observed due to the spin-orbit and electron-optic phonon interactions. The two of coupled plasmon-phonon and plasmon-surface phonon modes are optic-like and the other two are acoustic-like. The plasmon are strongly coupled with the optic-phonon in MoS2 and the surface optic-phonon in the substrates as the electron density or wave-vector increases. The strong plasmon-phonon coupling shows that the optoelectronic properties of monolayer MoS2 are evidently modulated by electron-phonon interactions. The hybrid plasmon-phonon polaritons can be achieved by strong light-mater interactions. This study is relevant to the application of MoS2 as novel plasmonic and nanophotonic devices.
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Affiliation(s)
- H M Dong
- School of Physical Science and Technology, China University of Mining and Technology, Xuzhou 221116, People's Republic of China
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15
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Li YQ, Bai LS, Zhao CX, Xu JJ, Sun ZJ, Dong YL, Li DX, Liu XL, Ma ZQ. Functional Characterization of Two Carboxylesterase Genes Involved in Pyrethroid Detoxification in Helicoverpa armigera. J Agric Food Chem 2020; 68:3390-3402. [PMID: 32096985 DOI: 10.1021/acs.jafc.9b06690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Insect carboxylesterases are major enzymes involved in metabolism of xenobiotics including insecticides. Two carboxylesterase genes, CarE001A and CarE001H, were cloned from the destructive agricultural pest Helicoverpa armigera. Quantitative real-time polymerase chain reaction showed that CarE001A and CarE001H were predominantly expressed in fat body and midgut, respectively; developmental expression analyses found that the expression levels of both CarEs were significantly higher in fifth-instar larvae than in other life stages. Recombinant CarE001A and CarE001H expressed in the Escherichia coli exhibited high enzymatic activity toward α-naphthyl acetate. Inhibition assays showed that organophosphates had strong inhibition on CarEs activity compared to pyrethroids. Metabolism assays indicated that CarE001A and CarE001H were able to metabolize β-cypermethrin and λ-cyhalothrin. Homology modeling and molecular docking analyses demonstrated that β-cypermethrin could fit nicely into the active pocket of both carboxylesterases. These results suggested that CarE001A and CarE001H could play important roles in the detoxification of pyrehtroids in H. armigera.
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Affiliation(s)
- Yong-Qiang Li
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Li-Sha Bai
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Cai-Xia Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jing-Jing Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhong-Juan Sun
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yan-Ling Dong
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - De-Xian Li
- College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xi-Li Liu
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zhi-Qing Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Engineering and Research Center of Biological Pesticide of Shaanxi Province, Yangling, Shaanxi 712100, China
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16
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Ye PP, Wang Y, Er YL, Deng X, Zhu X, Huang XN, Zhao CX, Duan LL. [Occurrence of injuries among left-behind children from 27 poor rural areas in 12 provinces of China, 2016]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:1369-1375. [PMID: 31838806 DOI: 10.3760/cma.j.issn.0254-6450.2019.11.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the injuries among 16 459 left-behind children from 27 poor rural areas in 12 provinces of China, 2016. Methods: Data were collected from the survey of 'Health Service Needs Assessment' (HSNA) program on left-behind children, from poor rural areas in the middle and western parts of China. Factors including causes, types, locations, related activities, ways of treatment and outcomes among left-behind children with injuries in 2016, were described and analyzed by gender and age groups. Results: In 2016, per-person and person-time incidence rates of injuries were 8.88% and 11.21%, among the 16 459 left-behind children from 27 poor rural areas in 12 provinces of China, both higher in boys, than in girls. Most injuries were unintentional with its proportion higher in older children. The main types of injuries were seen as falls, blunt and sharp injuries, with burns and animal injuries more common in younger children. Injuries among left-behind children mainly took place at home, kindergarten/school, and on the highways/streets/roads, during playing. Most common ways of treatment would include at the emergency settings, self-treated, with older children more likely to treat by themselves. Most injuries were cured. Conclusions: In programs on prevention and control of injuries targeting the left-behind children in poor rural areas, special attention should be given to older boys, on falls and blunt/sharp injuries, at home or kindergarten/school. Education programs should pinpoint on self-rescue skills and guidance on kids by the parents, with behavioral norms and social support included. Related comprehensive prevention and control mechanism should be developed in families, schools and communities, with medical resources and insurance mechanism explored to serve these population and districts, including those left-behind children.
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Affiliation(s)
- P P Ye
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Y Wang
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Y L Er
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - X Deng
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - X Zhu
- United Nations International Children's Emergency Fund, Beijing 100600, China
| | - X N Huang
- United Nations International Children's Emergency Fund, Beijing 100600, China
| | - C X Zhao
- United Nations International Children's Emergency Fund, Beijing 100600, China
| | - L L Duan
- Division of Injury Prevention and Mental Health, National Center for Chronic and Non-communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Bai LS, Zhao CX, Xu JJ, Feng C, Li YQ, Dong YL, Ma ZQ. Identification and biochemical characterization of carboxylesterase 001G associated with insecticide detoxification in Helicoverpa armigera. Pestic Biochem Physiol 2019; 157:69-79. [PMID: 31153479 DOI: 10.1016/j.pestbp.2019.03.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 03/03/2019] [Accepted: 03/13/2019] [Indexed: 06/09/2023]
Abstract
Carboxylesterases (CarEs) are a major class of detoxification enzymes involved in insecticide resistance in various insect species. In this study, a novel CarE 001G was isolated from the cotton bollworm Helicoverpa armigera, one of the most destructive agricultural insect pests. The open reading frame of 001G has 2244 nucleotides and putatively encodes 747 amino acid residues. The deduced CarE possessed the highly conserved catalytic triads(Ser-Glu-His) and pentapeptide motifs (Gly-X-Ser-X-Gly), suggesting 001G is biologically active. The truncated 001G was successfully expressed in Escherichia coli, and the recombinant proteins were purified and tested. The enzyme kinetic assay showed the purified proteins could catalyze two model substrates, α-naphthyl acetate and β-naphthyl acetate, with a kcat of 8.8 and 2.3 s-1, a Km of 9.6 and 16.2 μM, respectively. The inhibition study with pyrethroid, organophosphate and neonicotinoid insecticides showed different inhibition profile against the purified CarE. The HPLC assay demonstrated that the purified proteins were able to metabolize β-cypermethrin, λ-cyhalothrin and fenvalerate insecticides, exhibiting respective specific activities of 1.7, 1.4 and 0.5 nM/min/mg protein. However, the purified proteins were not able to metabolize the chlorpyrifos, parathion-methyl, paraoxon-ethyl and imidacloprid. The modeling and docking analyses consistently demonstrated that the pyrethroid molecule fits snugly into the catalytic pocket of the CarE 001G. Collectively, our results suggest that 001G may play a role in pyrethroids detoxification in H. armigera.
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Affiliation(s)
- Li-Sha Bai
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Cai-Xia Zhao
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Jing-Jing Xu
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Chuan Feng
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Yong-Qiang Li
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Yan-Ling Dong
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Zhi-Qing Ma
- College of Plant Protection, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Huang LS, Dong HM, Duan YF, Liu JL, Zhao CX. Optical properties of surface states in two-dimensional topological insulators. Appl Opt 2018; 57:9275-9278. [PMID: 30461977 DOI: 10.1364/ao.57.009275] [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] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 10/02/2018] [Indexed: 06/09/2023]
Abstract
We present a simple and tractable approach to investigate the optical properties of surface states in two-dimensional (2D) topological insulators (TIs). The analytic expression of optical conductivity of surface states in 2D TIs are obtained based on the kinetic equations. It is found that universal optical conductance can be observed in the high frequency region, which does not depend on the temperature, the chemical potential, or the bandgap of the systems. This universal optical conductance is similar to that in graphene. However, the optical absorption edge of such surface states strongly depend on the chemical potential and the bandgap of the systems. There are obvious optical absorption peaks at low temperature in the low frequency region, which are very different from that in graphene. The bandgaps in surface states can be accurately experimentally measured by the optical absorption edges or the peaks. We expect that our theoretical results offer transparent understandings for the experimental results and applications of 2D TIs.
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Yang X, Zhao CX, Li S, Chen FZ, Li JG. [Health literacy level and influence factors of occupational population in one province]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:683-687. [PMID: 29294522 DOI: 10.3760/cma.j.issn.1001-9391.2017.09.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand health literacy (HL) status of occupational population in work place and provide the basis of developing for HL standards and specific intervention strategies. Methods: Being selected by stratified cluster sampling, 3507 employees in 13 companies wthin Hebei Province were investigated by questionnaire. Results: The survey was conducted with 3507 questionnaires, the valid rate was about 97.83%. There were a total of 2629 men (76.62%) and 802 women (23.38%) . The overall level of HL was 32.24%. Health literacy level (HLL) of three aspects are: basic knowledge and concepts 52.03%, healthy life-style and behavior 26.00%, and health related skills 40.25%, the HL rate of six health issues as scientific view of health, prevention of communicable diseases, prevention of chronic diseases, safety and first aid, basic medical care and health information are 61.59%, 28.62%, 21.95%, 75.20%, 32.99% and 49.17% respectively. The group aged 25-34 had the highest HLL (43.95%) ; the higher culture degree, the higher the level of health literacy (P<0.05) . The HLL of the occupational population in Hebei province was 32.24%, which was close to the HLL of the national occupational population, but higher than that of general population in Hebei province and in the whole country. Conclusions: The HLL of the occupational population in Hebei province which was close to the HLL of the national occupational population. HLL of basic knowledge and concepts is higher than that of healthy life-style and behavior and health related skills, the health literacy rate of prevention of communicable diseases and chronic diseases were low. Age, culture degree and type of industry are important influence factors.
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Affiliation(s)
- X Yang
- School of Public Health, Hebei Medical University. Shijiazhuang 050017, China
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He PL, Zhao CX, Dong QY, Hao SB, Xu P, Zhang J, Li JG. [Application of occupational hazard risk index model in occupational health risk assessment in a decorative coating manufacturing enterprises]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:18-21. [PMID: 29495172 DOI: 10.3760/cma.j.issn.1001-9391.2018.01.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the occupational health risk of decorative coating manufacturing enterprises and to explore the applicability of occupational hazard risk index model in the health risk assessment, so as to provide basis for the health management of enterprises. Methods: A decorative coating manufacturing enterprise in Hebei Province was chosen as research object, following the types of occupational hazards and contact patterns, the occupational hazard risk index model was used to evaluate occupational health risk factors of occupational hazards in the key positions of the decorative coating manufacturing enterprise, and measured with workplace test results and occupational health examination. Results: The positions of oily painters, water-borne painters, filling workers and packers who contacted noise were moderate harm. And positions of color workers who contacted chromic acid salts, oily painters who contacted butyl acetate were mild harm. Other positions were harmless. The abnormal rate of contacting noise in physical examination results was 6.25%, and the abnormality was not checked by other risk factors. Conclusion: The occupational hazard risk index model can be used in the occupational health risk assessment of decorative coating manufacturing enterprises, and noise was the key harzard among occupational harzards in this enterprise.
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Affiliation(s)
- P L He
- College of Public Health, North China University of Science and Technology, Tang Shan 063200, China
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Shi HF, Zhang JX, Wang XL, Xu YY, Dong SL, Zhao CX, Huang XN, Zhao Q, Chen XF, Zhou Y, O'Sullivan M, Pouwels R, Scherpbier RW. [Effectiveness of integrated early childhood development intervention on nurturing care for children aged 0-35 months in rural China]. Zhonghua Er Ke Za Zhi 2018; 56:110-115. [PMID: 29429198 DOI: 10.3760/cma.j.issn.0578-1310.2018.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore whether Integrated Early Childhood Development (IECD) program has effectively improved the nurturing care for children aged 0-35 months in rural China. Methods: IECD has been implemented by the government of China with support from the United Nations Children's Fund (UNICEF) in four poverty-stricken rural counties since 2014. The interventions targeting the five key components of nurturing care (i.e. child and caregiver health, child nutrition, early learning support, child protection and social security) were delivered through the IECD program to children aged 0 to 35 months and their caregivers. A population-based intervention trial was designed to evaluate intervention effectiveness with data collected in 2013 (baseline) and 2016 (mid-term). The changes of nurturing care in the intervention and control group were analyzed by using a difference-in-differences (DID) model. This approach provided adjustment for sociodemographic and other confounding factors. Results: The baseline and mid-term survey enrolled 1 468 and 1 384 children in the intervention group, and 1 485 and 1 361 in the control group. After two years of implementation, the prevalence of caregiver's depression in the intervention group showed a decrease of 9.1% (mid-term 34.8% (479/1 377) vs. baseline 43.9% (621/1 414)), whereas that in control group showed a decrease of 1.6% (mid-term 34.3% (464/1 353) vs. baseline 35.9% (509/1 419)). With the confounding adjusted in the difference-in-differences model, the decrease of the caregiver's depression prevalence in the intervention group was 7.0% greater than that in the control group (P=0.008). The qualified rate of minimum meal frequency in the intervention group showed an increase of 10.4% (mid-term 69.0% (532/771) vs. baseline 58.6% (481/821)), whereas the qualified rate in the intervention group showed an increase of 2.9% (mid-term 66.4% (469/706) vs. baseline 63.5% (508/800)). With the confounding adjusted in the difference-in-differences model, the increase of the qualified rate in the intervention group was 8.2% greater than that in the control group (P=0.021). The proportion of violent discipline by caregivers in the intervention group showed a decrease of 6.2% (mid-term 49.1% (478/973) vs. baseline 55.3% (554/1 001)), whereas the proportion in control group showed an increase of 4.5% (mid-term 58.4% (560/959) vs. baseline 53.9% (558/1 036)), and with the confounding adjusted in the difference-in-differences model, the difference in increase rate between two groups was 11.0% (P=0.001). The proportion of families with three or more children's books in the intervention group showed an increase of 12.7% (mid-term 42.7% (588/1 378) vs. baseline 30.0% (432/1 440)), whereas the proportion of the control group showed an increase of 4.2% (mid-term 25.7% (349/1 357) vs. baseline 21.5% (298/1 388)), and with the confounding adjusted in the difference-in-differences model, the difference in increase rate between two groups was 6.1% (P=0.007). Conclusions: The IECD intervention strategy implemented in rural China effectively improved the mental health of caregivers, optimizes families' child feeding and early stimulation behaviors, while reducing violent discipline and other risk factors. IECD provides better nurturing care for the early development of children aged 0-35 months in rural China.
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Affiliation(s)
- H F Shi
- Department of Maternal and Child Health, School of Public Health, Peking University Health Science Center, Beijing 100191, China
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Qin WY, Gan LN, Sun L, Zhao CX, Wu SL, Bao WB. LBP gene methylation involved in mRNA expression and resistance to E. coli F18 in weaned piglets. Pol J Vet Sci 2018; 20:643-650. [PMID: 29611651 DOI: 10.1515/pjvs-2017-0081] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Lipopolysaccharide binding protein (LBP) plays an important role in recognizing and regulating endotoxin. In this study, we aimed at clarifying the relationship between the methylation of LBP gene and it's expression, to identify mechanisms involved in resistance to E. coli F18 in Sutai weaned piglets. LBP expression was detected by real-time PCR in duodenum and jejunum tissues from E. coli F18-sensitive or -resistant piglets. The LBP methylation status of the regions with many CG sites upstream of the transcription start site was analyzed by Bbisulfite Sequencing PCR (BSP) +Miseq in jejunum and duodenum tissue. The results showed that LBP expression was significantly higher in the sensitive group than the resistant group in duodenum tissue (p<0.05). There was a negative correlation between the methylation of CpG islands upstream of the LBP transcription start site and its expression; the methylation at two CpG sites in particular was significantly correlated with reduced LBP expression (CpG-1 and CpG-2; p<0.05 and p<0.01, respectively). These indicated that the methylation of CpG-1 and CpG-2 sites in the LBP region is involved in the regulation of LBP expression, and may provide key contributions to resisting E. coli F18 in Sutai weaned piglets.
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Affiliation(s)
- W Y Qin
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - L N Gan
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - L Sun
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - C X Zhao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - S L Wu
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China.,Joint International Research Laboratory for Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, 225009, China
| | - W B Bao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, 225009, China.,Joint International Research Laboratory for Agriculture and Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, 225009, China
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Dong QY, Zhao CX, Liu JB. [The health effects of lead to occupational population]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:398-400. [PMID: 28780812 DOI: 10.3760/cma.j.issn.1001-9391.2017.05.028] [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: 06/07/2023]
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Dai CH, Wu JY, Zhao CX, Yu LH, Bao WB, Wu SL. Nramp1 gene expression in different tissues of Meishan piglets from newborn to weaning. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019288. [PMID: 28362979 DOI: 10.4238/gmr16019288] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Natural resistance-associated macrophage protein gene 1 (Nramp1) plays an important role in the innate immune response of swine, and is believed to influence disease resistance. In this study, a real-time quantitative polymerase chain reaction technique was used to investigate Nramp1 expression in 12 different tissues in newborn and 7-, 14-, 21-, 28-, and 35-day-old Meishan piglets. Results indicated that Nramp1 was expressed to varying degrees in all sample tissues, although expression differed among growth stages. For example, Nramp1 was highly expressed in the spleen, but minimally expressed in heart, liver, and muscle tissues among the various piglet age classes. Overall, Nramp1 expression increased with age, reaching significant levels in 21- and 28-day-old animals. Nramp1 was expressed in all 12 tissues tested; however, expression in spleen, lung, kidney, and thymus tissues was highest among newborns, which is consistent with this gene's role in innate immunity improvement. Before and after weaning, Nramp1 was highly expressed in digestive (stomach) and intestinal (duodenum, jejunum, and ileum) tissues, further indicating a genetic role in both immune regulation to compensate for weaning stress and enhanced development of intestinal immunity.
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Affiliation(s)
- C H Dai
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - J Y Wu
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - C X Zhao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - L H Yu
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - W B Bao
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - S L Wu
- Key Laboratory for Animal Genetics, Breeding, Reproduction and Molecular Design of Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
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Zhao CX, Zhang J, Hao SB, Zhang J, Xu P, Can YW, Zhao JQ, Li JG. [Application of means of surfaces with nonhomogeneity in estimating the incidence of pneumoconiosis]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:41-43. [PMID: 28241701 DOI: 10.3760/cma.j.issn.1001-9391.2017.01.009] [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] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To investigate the value of means of surfaces with nonhomogeneity (MSN) in esti-mating the incidence of pneumoconiosis. Methods: Based on the principal component analysis, all counties (districts) of Hebei Province, China, were divided into three categories according to the degree of pneumoconiosis hazards and the MSN model was used to estimate the incidence rate of pneumoconiosis and the number of pneu-moconiosis cases using the data of the incidence of pneumoconiosis in 2010. Results: With reference to the appli-cation requirements of the MSN model, results of the principal component analysis, and expert experience, the 172 counties (districts) in Hebei Province were divided into three categories with mild, moderate, and severe pneumoconiosis hazards. There were 74, 61, and 49 counties in the above categories, respectively, and 12, 12, and 25 counties were selected from them, respectively. The estimated number of pneumoconiosis cases in Hebei Province was 2105, and the incidence rate was 261.5 per hundred thousand, with a standard error of esti-mation of 389.9 per hundred thousand. Conclusion: The MSN model provides a new thought and method for es-timating the number of pneumoconiosis cases.
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Affiliation(s)
- C X Zhao
- Hebei Center of Disease Prevention and Control, Shi jiazhuang 050021, China
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Zhang L, Zhao CX, Ji HX, He J, Chang CF, Hao HY, Li JG. [Effect of occupational lead exposure on the blood pressure of lead-exposed workers]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:825-827. [PMID: 28043269 DOI: 10.3760/cma.j.issn.1001-9391.2016.11.007] [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: 11/05/2022]
Abstract
Objective: To investigate the effect of occupational lead exposure on blood pressure and pro-vide supportive evidence of health protection on lead - exposed workers. Methods: 612 workers (452 lead - ex-posed workers, 160 workers as control) were recruited in the battery factory. The blood lead concentration and blood pressure were detected by occupational health examination and biological monitoring. The relationship of blood lead concentration and blood pressure wasanalyzed. Results: The blood lead concentration in the exposed group (249.84±137.74) μg/L was higher than that of the control group (117.25±70.15) μg/L, and the differ-ence was statistically significant (P<0.01) . The difference of abnormal blood pressure and diastolic pressure among the exposed and the control group was statistically significant (P<0.05) . The abnormal blood pressure rate, systolic pressure rate and diastolic pressure rate in the 400~726 μg/L group was higher than that of the 6~199 μg/L and 200~399 μg/L group, and the difference was statistically significant (P<0.01) . Multiple lin-ear regression analysis showed that the influencing factors of the systolic pressure followed by sex, age, length of service and blood lead concentration, diastolic pressure followed by sex, age, smoke and blood lead concen-tration. Conclusion: These findings suggest that long - term occupational lead exposure may result in the in-crease of blood lead concentration.
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Affiliation(s)
- L Zhang
- Department of Epidemiology and Statistics, Hebei Medical University, Shijiazhuang 050017, China
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Zhang J, Hao SB, Zhao CX, Zhang J, Xu P, Cao YW, Zhao JQ, Li JG. [Application of principal component analysis in comprehensive indicator screening for pneumoconiosis in different regions]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:678-680. [PMID: 27866546 DOI: 10.3760/cma.j.issn.1001-9391.2016.09.010] [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: 06/06/2023]
Abstract
Objective: To investigate the application of principal component analysis in comprehensive indicator screening for pneumoconiosis in different regions. Methods: A principal component analysis was performed for the data of 11 factors associated with the prediction of pneumoconiosis hazard and collected in the investigation on occupational health status conducted in 172 counties (districts) in Hebei, China. The degree of pneumoconiosis hazard in different regions was obtained and intuitively presented by GIS. Results: The eigenvalues of 5 principal components of pneumoconiosis were 4.103, 2.341, 0.981, 0.943, and 0.726, respectively, and the contribution values were 37.299%, 21.286%, 8.919%, 8.572%, and 6.596%, respectively. According to the comprehensive value of principal components, GIS Natural Breaks was used to divide the degree of pneumoconiosis hazard in 172 counties (districts) in Hebei into mild, moderate, and severe grades. Of all the counties, 46 had severe pneumoconiosis hazard, 69 had moderate pneumoconiosis hazard, and 57 had mild pneumoconiosis hazard, and the ranges of the score of principal components were 0.30-1.15, -0.24 to 0.27, and -0.69 to -0.25, respectively. Conclusion: Principal component analysis can optimize the comprehensive indicators for the evaluation of regional pneumoconiosis. The comprehensive score of principal components can quantify and intuitively show the degree of pneumoconiosis hazard in different regions. Tangshan, Chengde, Shijiazhuang, and Handan have the most severe pneumoconiosis hazard.
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Affiliation(s)
- J Zhang
- *LangFang Center of Disease Prevention and Control, LangFang 065000, China
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Dong QY, Zhao CX, Zheng H, Chen FZ, Li ZM, Li YH, Ji HX, Hao HY, Zhao W, Gao JQ, Liu HT, He J, Zhang XN, Li JG, Yuan JX. [Application of benchmark dose on renal injury in people chronically exposed to lead]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:494-497. [PMID: 27682482 DOI: 10.3760/cma.j.issn.1001-9391.2016.07.004] [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: 06/06/2023]
Abstract
Objective: To screen sensitive indicators of renal injury in lead workers using benchmark dose method. Methods: Of the 486 subjects,116 did not occupationally contact to lead as a control. The blood lead was considered as exposure biomarker, while Uβ2-MG and UNAG as effect biomarkers for renal injury. The BMD and BMDL of blood lead were estimated at the 10% benchmark response using BMDS Version 2.6. Results: There was statistical rise in blood lead between the lead group and control group (P<0.05) ; and the blood lead level was divided into four groups by quarterback spacing method, among which UNAG was statistically different (P<0.05) . There was an increased prevalence of abnormal rates of Uβ2-MG and UNAG with increasing blood lead concentration (P<0.05) , after trend chi-square test. BMD and BMDL of UNAG and Uβ2-MG were 602.784/431.838 μg/L and 130.398/100.981 μg/L caculated by Log-Probit model, respectively. Conclusions: Occupational lead exposure may cause kidney damage, and UNAG could be as a more sensitive marker for monitoring early renal injury than Uβ2-MG.
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Affiliation(s)
- Q Y Dong
- Department of Epidemiology and Statistics, Hebei Medical University, Shijiazhuang 050017, China
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Zhang J, Zhao CX, Zhang J. [Recent advance in the pathogenesis of pulmonary fibrosis induced by paraquat poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:236-239. [PMID: 27220453 DOI: 10.3760/cma.j.issn.1001-9391.2016.03.022] [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: 06/05/2023]
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Zhao CX, Fan F, Du T, Chigrinov VG, Kwok HS. Multilayer photo-aligned thin-film structure for polarizing photonics. Opt Lett 2015; 40:2993-2996. [PMID: 26125350 DOI: 10.1364/ol.40.002993] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this Letter, an advanced multilayer photo-aligned liquid crystal polymer (LCP) thin-film structure with multiple optical functions is introduced. Within each LCP layer, a spatially distribution of local optical axes can be controlled by a patterned photo-alignment layer. As an embodiment of the proposed structure, a two-layer structure with pixelated controlled light-propagation directions and polarizations has been studied, which has shown the potential to be used as a photomask for generating multi-domain photo-alignment structures with a single exposure step. The combination of the multilayer structure with patterned photo-alignment technology provides a new perspective of designing optical structures for polarizing photonics applications.
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Zou GX, Jiao QW, Zhang X, Zhao CX, Li JC. Crystallization behavior and morphology of poly(lactic acid) with a novel nucleating agent. J Appl Polym Sci 2014. [DOI: 10.1002/app.41367] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Guo-Xiang Zou
- School of Materials Science and Engineering, ChangZhou University; ChangZhou 213164 JiangSu China
| | - Qing-Wei Jiao
- School of Materials Science and Engineering, ChangZhou University; ChangZhou 213164 JiangSu China
| | - Xin Zhang
- School of Materials Science and Engineering, ChangZhou University; ChangZhou 213164 JiangSu China
| | - Cai-Xia Zhao
- School of Materials Science and Engineering, ChangZhou University; ChangZhou 213164 JiangSu China
| | - Jin-Chun Li
- School of Materials Science and Engineering, ChangZhou University; ChangZhou 213164 JiangSu China
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Gong J, Zhao CX, Xie YC, Gao YJ. [Ecological risk assessment and its management of Bailongjiang watershed, southern Gansu based on landscape pattern]. Ying Yong Sheng Tai Xue Bao 2014; 25:2041-2048. [PMID: 25345056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Watershed ecological risk assessment is an important research subject of watershed ecological protection and environmental management. Research on the ecological risk focuses on addressing the influence of human activities and its spatial variation at watershed scale is vital to policy-making to control the impact of human activity and protocols for sustainable economic and societal development. A comprehensive ecological environment index, incorporating a landscape index and an assessment of ecological vulnerability, was put forward to assess the spatio-temporal characteristics of ecological risk of the Bailongjiang watershed, southern Gansu Province, Northwest China. Using ArcGIS and Fragstats software and a land use map of 2010, an ecological risk map was obtained through spatial sampling and disjunctive Kriging interpolation. The results indicated that there were some obvious spatial differences of ecological risk levels in the watershed. The ecological risk level of the north and northwest of the Bailongjiang was higher than that of the western and southern extremities of the watershed. Ecological risk index (ERI) of Wudu and Tanchang was higher than that of Wenxian and Diebu. Some measures for ecological risk management were put forward on the basis of ERI of Bailongjiang watershed. To strengthen the integrated management of human activities and land use in the watershed, to carry out the vegetation restoration and ecological reconstruction, and to reduce the ecological risks and hazards of irrational human disturbance, are vital to the realization 'multiple-win' of the economic, social and ecological protection and for the sustainable development in the hilly area in southern Gansu.
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Zhao CX, Li YF, Chen YC, Wu JQ, Wang B, Yi FT, Deng SZ, Xu NS, Chen J. Microstructure change of ZnO nanowire induced by energetic x-ray radiation and its effect on the field emission properties. Nanotechnology 2013; 24:275703. [PMID: 23759981 DOI: 10.1088/0957-4484/24/27/275703] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The changes in the microstructure of ZnO nanowire were studied after exposure to different radiation doses of energetic x-rays. Detailed structural, composition and optical analyses were carried out. It was found that the surface composition changed and defects were formed in the irradiated ZnO nanowires. The structural change of ZnO nanowires after thermal treatment was also studied and similar defects were observed. It is proposed that phonon-induced localized heating is the main reason for the observed changes in microstructure. Finally, the field emission properties of ZnO nanowires before and after x-ray radiation were studied. It was found that the increase of work function and change in morphology induced by the irradiation were the reasons for the observed change in field emission properties.
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Affiliation(s)
- C X Zhao
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
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Zou GX, Zhang X, Zhao CX, Li J. The crystalline and mechanical properties of PLA/layered silicate degradable composites. Polym Sci Ser A 2012. [DOI: 10.1134/s0965545x12050148] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shen C, Hao SG, Zhao CX, Zhu J, Wang C. Antileukaemia immunity: effect of exosomes against NB4 acute promyelocytic leukaemia cells. J Int Med Res 2011; 39:740-7. [PMID: 21819704 DOI: 10.1177/147323001103900305] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Exosomes are a family of bioactive vesicles and play important roles in antigen presentation. A recent phase I clinical trial with an exosome vaccine derived from colorectal cancer has shown minor clinical benefit. Exosomes derived from leukaemia cell lines have been little studied so, in the present study, the immunoprotective effect of exosomes secreted by NB4 cells, a human acute promyelocytic leukaemia cell line, was investigated. NB4-derived exosomes expressed the proteins retinoic acid receptor α and interstitial cell adhesion molecule 1 and contained heat shock protein 70, as demonstrated by transmission electron microscopy and Western blotting. Cytotoxicity assay demonstrated that cytotoxic T lymphocytes (CTLs) induced by dendritic cells (DCs) pulsed with exosomes were significantly more effective in killing target NB4 cells than CTLs induced by DCs alone. Exosome-based vaccines may be a promising means of prolonging disease-free survival in acute promyelocytic leukaemia patients after induction therapy.
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Affiliation(s)
- C Shen
- Department of Haematology, Shanghai First People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Zhao CX, Zhang WD, Mai AP, Huang XM, Ouyang YS. Synthesis and characterization of waterborne polyurethane/Cu(II)-loaded hydroxyapatite nanocomposites with antibacterial activity. J Nanosci Nanotechnol 2011; 11:6779-6787. [PMID: 22103080 DOI: 10.1166/jnn.2011.4212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A novel kind of environmentally friendly nanocomposites, waterborne polyurethane (WBPU)/Cu(II)-loaded hydroxyapatite (CuHAp), with improved physical properties and antibacterial activity have been prepared via in-situ polymerization from functionalized CuHAp nanoparticles (CuHAp NPs). The interaction of the CuHAp NPs with isophorone diisocyanate to form the functionalized CuHAp NPs containing isocyanate groups (CuHAp-g-NCO) has been studied. The microstructure and particle distribution of the nanocomposites were observed using scanning electron microscopy. The improvements of mechanical properties, thermal stability and water resistance of the nanocomposites have also been evaluated. Finally, the antibacterial activity was tested against G(-) Escherichia coli and G(+) Staphylococcus aureus by the zone of inhibition test and the direct contact test. The long-lasting antibacterial activity was studied by measuring antibacterial ability of the nanocomposites after being immersed in water. The results indicate that WBPU incorporation with CuHAp NPs shows strong antibacterial activity upon contact, and long-lasting antibacterial property.
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Affiliation(s)
- Cai-Xia Zhao
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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Abstract
[reaction: see text]. Mechanistic studies employing in situ NMR analysis implicate intermediate silicon enolates as reactive intermediates in the Rh-DuPhos catalyzed two-step reductive aldol reaction with Cl(2)MeSiH. These enolates undergo noncatalyzed reaction with a variety of aldehydes to give the derived syn-aldol adduct in high yields and diastereoselection.
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Affiliation(s)
- C X Zhao
- Department of Chemistry, Venable and Kenan Laboratories, The University of North Carolina at Chapel Hill, 27599-3290, USA
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Abstract
[see reaction]. A catalytic amount of [(cod)IrCl]2 and indane-pybox converts diethylmethylsilane, methyl acrylate, and certain aldehydes to the derived reductive aldol adduct with good enantio- and diastereocontrol.
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Affiliation(s)
- C X Zhao
- Department of Chemistry, Venable and Kenan Laboratories, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, USA
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Ni DF, Li FR, Zhang ZY, Xu CX, Zhao CX. [Analyse of the site of lesion in auditory neuropathy]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2000; 14:293-5. [PMID: 12563876] [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
OBJECTIVE To analyze the clinic signs, the site of lesion and terminology of a kind of hearing loss which is characterized by speech hearing loss. METHOD The data of 11 patients were collected and analyzed including the clinic symptoms, pure tone audiometry, acoustic impedance audiometry, auditory brainstem response (ABR), electrocochleogram(ECochG), distortion product otoacoustic emission (DPOAE), CT/MRI. RESULT All these cases had following contradictory phenomena: Pure tone audiograms were low-frequency hearing loss; ABRs were absent or seriously abnormal, and ABR response threshold was worse than pure tone threshold and click subjective threshold; ECochG could be recorded in some patients; The stapes muscle reflex was absent; DPOAEs were normal or near normal, the average amplitude of low-frequency was higher than normal hearing group, but the average amplitude of high frequency was lower than normal hearing group; The imaging examination did not show any abnormality. CONCLUSION All data of this group show that the sites of lesion in most patients may be in lower brainstem, but the sites of lesion in some patients may be in the spiral ganglion of cochlea. The research of this disease should be continued.
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Affiliation(s)
- D F Ni
- Peking Union Medical College Hospital, CAMS & PUMC, Beijing 100730
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Liu FQ, Zhao CX, Chen QJ. [Forensic pathology analysis of factors in causing trouble by schizophrenics]. Fa Yi Xue Za Zhi 1999; 15:222-3, 255. [PMID: 12536439] [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
We analyzed the data of different schizophrenics. The data of those who caused trouble were compared to those who did not cause trouble and to data of other mental patients. It was found that schizophrenics had a higher rate to cause trouble and commit murder. Schizophrenics who made trouble got worse therapeutic efficacy. They seldom got married and were not supported by their family. It is suggest that keeping strict supervision and providing good treatment to schizophrenics be positive ways to secure our society.
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Affiliation(s)
- F Q Liu
- Qingdao Intermediate People's Court, Qingdong 266071, P. R. China
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Yong D, Lim SH, Zhao CX, Cui SL, Zhang L, Lee TL. Acupuncture treatment at Ang Mo Kio Community Hospital--a report on our initial experience. Singapore Med J 1999; 40:260-4. [PMID: 10487080] [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: 02/14/2023]
Abstract
BACKGROUND We report our initial experience with acupuncture treatment at the Ang Mo Kio Community Hospital's Acupuncture Research Clinic. PATIENTS One thousand one hundred and twenty-eight patients received a total of 12,172 acupuncture treatment sessions during the period between September 1995 and December 1996. The majority were Chinese (94%), between 40-70 years (70%) with either dialect or Mandarin (68%) as the main spoken language. However, one third of the patients were English speaking, and educational level did not seem to be a factor among our patients accepting acupuncture treatment. Most had either painful conditions (58%) or stroke-related dysfunction (23%). Amongst the painful conditions, arthritis (25%), low back pain (22%) and other musculo-skeletal pain (12%) were the most common. RESULTS Prior to treatment, about three-quarter of patients believed acupuncture would benefit them while 40% had tried acupuncture before. After completion of treatment, 70% of all patients considered acupuncture safe, 54% were satisfied with the overall result, 51% felt acupuncture was beneficial, while 54% would recommend acupuncture to others with similar conditions. In a subgroup of patients treated for painful conditions, > 90% reported improvement. Near-syncope occurred in 2 patients (0.18%) or during 2 treatment sessions (0.02%). There was no other acupuncture-related complication. CONCLUSION Our preliminary experience showed that acupuncture is safe, and appears to be beneficial to patients with painful conditions. An overview of acupuncture treatment is presented, and the issues of safety, efficacy and a need to conduct randomised controlled clinical trials are discussed.
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Affiliation(s)
- D Yong
- Acupunture Research Clinic (ARC), Ang Mo Kio Community Hospital, Singapore
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Zhao CX. Treatment of toothache with acupuncture. J TRADIT CHIN MED 1989; 9:302-3. [PMID: 2630825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Zhao CX. Acupuncture and moxibustion treatment of hiccup. J TRADIT CHIN MED 1989; 9:182-3. [PMID: 2615451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Abstract
The extract of Pasta ulmi was examined in vivo and in vitro for antimalaria effect. During animal experiments lipophil extract appeared to have a stronger effect than whole extract, whereas the water diluted extract had no therapeutic effect. In the cell culture the isolated fraction of lipophil extract C1, C2 and C4 showed no inhibitory effect on P. falciparum, but the fraction C0 and C3 with a concentration of 10 micrograms/ml medium demonstrated a totally parasiticidal effect on parasites on the 5th day of culture.
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Zhao CX. Acupuncture treatment of morning sickness. J TRADIT CHIN MED 1988; 8:228-9. [PMID: 3216670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Zhao CX. Acupuncture treatment of menstrual pain. J TRADIT CHIN MED 1988; 8:73-4. [PMID: 3393022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Zhao CX. Postmenopausal urinary incontinence. J TRADIT CHIN MED 1987; 7:305-6. [PMID: 3449717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Zhao CX. Acupuncture treatment of hypotension. J TRADIT CHIN MED 1987; 7:229-30. [PMID: 3444357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Zhao CX. Lectures on formulating acupuncture prescriptions--selection and matching of acupoints. Acupuncture treatment of insomnia. J TRADIT CHIN MED 1987; 7:151-2. [PMID: 3448399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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