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Wang Y, Liu J, Shi J, Zhou X, Tan Y, Dai Z, Zhen D, Li L. Colorimetric sensing for the sensitive detection of UO 22+via the phosphorylation functionalized mesoporous silica-based controlled release system. Anal Methods 2024; 16:837-845. [PMID: 38230997 DOI: 10.1039/d3ay01281f] [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: 01/18/2024]
Abstract
In this study, we developed a simple and sensitive colorimetric sensing method for the detection of UO22+, which was built to release MB from the molybdenum disulfide with a phosphate group (MoS2-PO4) gated mesoporous silica nanoparticles functionalized phosphate group (MSN-PO4) with UO22+ chelating. In the presence of UO22+, MoS2-PO4 can be effectively adsorbed onto the surface of MSN-PO4 based on the coordination chemistry for strong affinity between the P-O bond and UO22+. The adsorbed MoS2-PO4 was then utilized as an ideal gate material to control the release of signal molecules (MB) entrapped within the pores of MSN-PO4, resulting in a detectable decrease in the absorption peak at 663 nm. This colorimetric sensing demonstrated the advantages of simplicity and easy manipulation and exhibited a linear response to the concentration of UO22+ within the range of 0.02-0.2 μM. The detection limit of UO22+ was determined to be 0.85 nM, which was lower than the limit (130 nmol L-1) set by the US Environmental Protection Agency. Furthermore, the proposed colorimetric sensing method has been utilized to determine UO22+ in samples of Xiangjiang River and tap water, and a high recovery rate was achieved. This method shows promising potential in preventing and controlling environmental pollution.
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Affiliation(s)
- Yating Wang
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
- Key Laboratory of Health Hazard Factors Inspection and Quarantine, University of South China, Hengyang, 421001, Hunan, China
| | - Jinquan Liu
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
- Key Laboratory of Health Hazard Factors Inspection and Quarantine, University of South China, Hengyang, 421001, Hunan, China
| | - Jiao Shi
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
- Key Laboratory of Health Hazard Factors Inspection and Quarantine, University of South China, Hengyang, 421001, Hunan, China
| | - Xiayu Zhou
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
- Key Laboratory of Health Hazard Factors Inspection and Quarantine, University of South China, Hengyang, 421001, Hunan, China
| | - Yan Tan
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
- Key Laboratory of Health Hazard Factors Inspection and Quarantine, University of South China, Hengyang, 421001, Hunan, China
| | - Zhongran Dai
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low-Grade Uranium Resources, University of South China, Hengyang 421001, People's Republic of China
| | - Deshuai Zhen
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
- Key Laboratory of Health Hazard Factors Inspection and Quarantine, University of South China, Hengyang, 421001, Hunan, China
| | - Le Li
- Department of Health Inspection and Quarantine, School of Public Health, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.
- Hunan Key Laboratory of Typical Environment Pollution and Health Hazards, University of South China, Hengyang 421001, People's Republic of China
- Key Laboratory of Health Hazard Factors Inspection and Quarantine, University of South China, Hengyang, 421001, Hunan, China
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Jing S, Dai Z, Wu Y, Liu X, Ren T, Liu X, Zhang L, Fu J, Chen X, Xiao W, Wang H, Huang Y, Qu Y, Wang W, Gu X, Ma L, Zhang S, Yu Y, Li L, Han Z, Su X, Qiao Y, Wang C. Prevalence and influencing factors of depressive and anxiety symptoms among hospital-based healthcare workers during the surge period of the COVID-19 pandemic in the Chinese mainland: a multicenter cross-sectional study. QJM 2023; 116:911-922. [PMID: 37561096 DOI: 10.1093/qjmed/hcad188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/06/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND From November 2022 to February 2023, the Chinese mainland experienced a surge in COVID-19 infection and hospitalization, and the hospital-based healthcare workers (HCWs) might suffer serious psychological crisis during this period. This study aims to assess the depressive and anxiety symptoms among HCWs during the surge of COVID-19 pandemic and to provide possible reference on protecting mental health of HCWs in future infectious disease outbreaks. METHODS A multicenter cross-sectional study was carried out among hospital-based HCWs in the Chinese mainland from 5 January to 9 February 2023. The PHQ-9 (nine-item Patient Health Questionnaire) and GAD-7 (seven-item Generalized Anxiety Disorder Questionnaire) were used to measure depressive and anxiety symptoms. Ordinal logistic regression analysis was performed to identify influencing factors. RESULTS A total of 6522 hospital-based HCWs in the Chinse mainland were included in this survey. The prevalence of depressive symptoms among the HCWs was 70.75%, and anxiety symptoms was 47.87%. The HCWs who perceived higher risk of COVID-19 infection and those who had higher work intensity were more likely to experience depressive and anxiety symptoms. Additionally, higher levels of mindfulness, resilience and perceived social support were negatively associated with depressive and anxiety symptoms. CONCLUSION This study revealed that a high proportion of HCWs in the Chinese mainland suffered from mental health disturbances during the surge of the COVID-19 pandemic. Resilience, mindfulness and perceived social support are important protective factors of HCWs' mental health. Tailored interventions, such as mindfulness practice, should be implemented to alleviate psychological symptoms of HCWs during the COVID-19 pandemic or other similar events in the future.
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Affiliation(s)
- S Jing
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Z Dai
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Wu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Liu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - T Ren
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Liu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - L Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - J Fu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Chen
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - W Xiao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - H Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Huang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Qu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - W Wang
- School of Nursing, Jining Medical University, Jining, Shandong, China
| | - X Gu
- Affiliated Tumor Hospital, Xinjiang Medical University, Urumqi, China
| | - L Ma
- Public Health School, Dalian Medical University, Dalian, China
| | - S Zhang
- Henan Cancer Hospital, Affiliate Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Yu
- The First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia Autonomous Region, China
| | - L Li
- Department of Clinical Research, The First Affiliated Hospital of Jinan University, Guangdong, China
| | - Z Han
- China Foreign Affairs University, Beijing, China
| | - X Su
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Qiao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - C Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Chinese Academy of Engineering, Beijing, China
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Zhang J, Luo X, Zhou R, Dai Z, Guo C, Qu G, Li J, Zhang Z. The axial and sagittal CT values of the 7th thoracic vertebrae in screening for osteoporosis and osteopenia. Clin Radiol 2023; 78:763-771. [PMID: 37573241 DOI: 10.1016/j.crad.2023.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 07/06/2023] [Accepted: 07/11/2023] [Indexed: 08/14/2023]
Abstract
AIM To evaluate the difference in computed tomography (CT) attenuation value of different planes of the 7th thoracic vertebra and investigate the efficacy of axial and sagittal vertebral CT measurements in predicting osteoporosis. MATERIALS AND METHODS Patients who underwent routine chest CT and dual-energy X-ray absorptiometry (DXA) within 1 month were included in this retrospective study. The CT attenuation values of different planes were compared. Logistic regression and receiver operating characteristic (ROC) were used to analyse the difference of each plane in the diagnosis of osteoporosis. RESULTS The study included 1,338 patients (mean age of 61.9±11.9; 54% female). The CT attenuation values decreased successively in the normal group, osteopenia group, and osteoporosis group. The paired t-test results showed that the mid-axial measurements were greater than mid-sagittal measurements, with a mean difference of 9 HU, the difference was statistically significant (p<0.001, 95% confidence interval [CI] = 7.8-10.1). For each one-unit reduction in mid-sagittal CT attenuation value, the risk of osteopenia or osteoporosis increased by 3.6%. To distinguish osteoporosis from non-osteoporosis (osteopenia + normal), the sensitivity was 90% and the specificity was 52.4% at the mid-sagittal threshold of 113.7 HU. CONCLUSIONS The CT attenuation values of mid-sagittal plane have higher diagnostic efficacy than axial planes in predicting osteoporosis. For patients with a sagittal CT attenuation value of <113.7 HU in the T7, further DXA examination is warranted.
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Affiliation(s)
- J Zhang
- Department of Orthopedics, The First Hospital of Nanchang, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Medical Department of Graduate School, Nanchang University, Nanchang, Jiangxi 330006, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China
| | - X Luo
- Department of Orthopedics, The First Hospital of Nanchang, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Medical Department of Graduate School, Nanchang University, Nanchang, Jiangxi 330006, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China
| | - R Zhou
- Medical Department of Graduate School, Nanchang University, Nanchang, Jiangxi 330006, China
| | - Z Dai
- Department of Orthopedics, The First Hospital of Nanchang, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Medical Department of Graduate School, Nanchang University, Nanchang, Jiangxi 330006, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China
| | - C Guo
- Department of Orthopedics, The First Hospital of Nanchang, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Medical Department of Graduate School, Nanchang University, Nanchang, Jiangxi 330006, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China
| | - G Qu
- Department of Orthopedics, The First Hospital of Nanchang, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Medical Department of Graduate School, Nanchang University, Nanchang, Jiangxi 330006, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China
| | - J Li
- Department of Orthopedics, The First Hospital of Nanchang, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Medical Department of Graduate School, Nanchang University, Nanchang, Jiangxi 330006, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China
| | - Z Zhang
- Department of Orthopedics, The First Hospital of Nanchang, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China; Nanchang Key Laboratory of Orthopaedics, The Third Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330008, China.
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Overstreet AMC, Anderson B, Burge M, Zhu X, Tao Y, Cham CM, Michaud B, Horam S, Sangwan N, Dwidar M, Liu X, Santos A, Finney C, Dai Z, Leone VA, Messer JS. HMGB1 acts as an agent of host defense at the gut mucosal barrier. bioRxiv 2023:2023.05.30.542477. [PMID: 37398239 PMCID: PMC10312563 DOI: 10.1101/2023.05.30.542477] [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] [Indexed: 07/04/2023]
Abstract
Mucosal barriers provide the first line of defense between internal body surfaces and microbial threats from the outside world. 1 In the colon, the barrier consists of two layers of mucus and a single layer of tightly interconnected epithelial cells supported by connective tissue and immune cells. 2 Microbes colonize the loose, outer layer of colonic mucus, but are essentially excluded from the tight, epithelial-associated layer by host defenses. 3 The amount and composition of the mucus is calibrated based on microbial signals and loss of even a single component of this mixture can destabilize microbial biogeography and increase the risk of disease. 4-7 However, the specific components of mucus, their molecular microbial targets, and how they work to contain the gut microbiota are still largely unknown. Here we show that high mobility group box 1 (HMGB1), the prototypical damage-associated molecular pattern molecule (DAMP), acts as an agent of host mucosal defense in the colon. HMGB1 in colonic mucus targets an evolutionarily conserved amino acid sequence found in bacterial adhesins, including the well-characterized Enterobacteriaceae adhesin FimH. HMGB1 aggregates bacteria and blocks adhesin-carbohydrate interactions, inhibiting invasion through colonic mucus and adhesion to host cells. Exposure to HMGB1 also suppresses bacterial expression of FimH. In ulcerative colitis, HMGB1 mucosal defense is compromised, leading to tissue-adherent bacteria expressing FimH. Our results demonstrate a new, physiologic role for extracellular HMGB1 that refines its functions as a DAMP to include direct, virulence limiting effects on bacteria. The amino acid sequence targeted by HMGB1 appears to be broadly utilized by bacterial adhesins, critical for virulence, and differentially expressed by bacteria in commensal versus pathogenic states. These characteristics suggest that this amino acid sequence is a novel microbial virulence determinant and could be used to develop new approaches to diagnosis and treatment of bacterial disease that precisely identify and target virulent microbes.
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Girgibo N, Lü X, Hiltunen E, Peura P, Dai Z. The air temperature change effect on water quality in the Kvarken Archipelago area. Sci Total Environ 2023; 874:162599. [PMID: 36871730 DOI: 10.1016/j.scitotenv.2023.162599] [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: 11/29/2022] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
The Kvarken Archipelago is Finland's World Heritage site designated by UNESCO. How climate change has affected the Kvaken Archipelago remains unclear. This study was conducted to investigate this issue by analyzing air temperature and water quality in this area. Here we use long-term historical data sets of 61 years from several monitoring stations. Water quality parameters included chlorophyll-a; total phosphorus; total nitrogen; coliform bacteria thermos tolerant; temperature; nitrate as nitrogen; nitrite-nitrate as nitrogen, and Secchi depth and correlations analysis was conducted to identify the most relevant parameters. Based on the correlation analysis of weather data and water quality parameters, air temperature showed a significant correlation with water temperature (Pearson's correlations = 0.89691, P < 0.0001). The air temperature increased in April (R2 (goodness-of-fit) = 0.2109 &P = 0.0009) and July (R2 = 0.1207 &P = 0.0155) which has indirectly increased the chlorophyll-a level (e.g. in June increasing slope = 0.39101, R2 = 0.4685, P < 0.0001) an indicator of phytoplankton growth and abundance in the water systems. The study concludes that there might be indirect effects of the likely increase in air temperature on water quality in the Kvarken Archipelago, in particular causing water temperature and chlorophyll-a concentration to increase at least in some months.
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Affiliation(s)
- N Girgibo
- Department of Energy Technology, School of Technology and Innovations, University of Vaasa, P.O.Box 700, FIN-65101 Vaasa, Finland.
| | - X Lü
- Department of Energy Technology, School of Technology and Innovations, University of Vaasa, P.O.Box 700, FIN-65101 Vaasa, Finland; Department of Civil Engineering, Aalto University, P.O.Box 12100, FIN-02130 Espoo, Finland.
| | - E Hiltunen
- Department of Energy Technology, School of Technology and Innovations, University of Vaasa, P.O.Box 700, FIN-65101 Vaasa, Finland.
| | - P Peura
- Department of Energy Technology, School of Technology and Innovations, University of Vaasa, P.O.Box 700, FIN-65101 Vaasa, Finland.
| | - Z Dai
- College of Construction Engineering, Jilin University, Changchun 130026, China.
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Sezgin G, Dai Z, McLeod A, Pearce C, Georgiou A. Difference in general practice telehealth utilisation associated with birth country during COVID-19 from two Australian states. Ethics Med Public Health 2023; 27:100876. [PMID: 36846862 PMCID: PMC9939389 DOI: 10.1016/j.jemep.2023.100876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 02/14/2023] [Indexed: 02/22/2023]
Abstract
Objective Telehealth has been an integral part of ensuring continued general practice access during the COVID-19 pandemic. Whether telehealth was similarly adopted across different ethnic, cultural, and linguistic groups in Australia is unknown. In this study, we assessed how telehealth utilisation differed by birth country. Methods In this retrospective observational study, electronic health record data from 799 general practices across Victoria and New South Wales, Australia between March 2020 to November 2021 were extracted (12,403,592 encounters from 1,307,192 patients). Multivariate generalised estimating equation models were used to assess the likelihood of a telehealth consultation (against face-to-face consultation) by birth country (relative to Australia or New Zealand born patients), education index, and native language (English versus others). Results Patients born in Southeastern Asia (aOR: 0.54; 95% CI: 0.52-0.55), Eastern Asia (aOR: 0.63; 95% CI: 0.60-0.66), and India (aOR: 0.64; 95% CI: 0.63-0.66) had a lower likelihood of having a telehealth consultation compared to those born in Australia or New Zealand. Northern America, British Isles, and most European countries did not present with a statistically significant difference. Additionally, higher education levels (aOR: 1.34; 95% CI: 1.26-1.42) was associated with an increase in the likelihood of a telehealth consultation, while being from a non-English-speaking country was associated with a reduced likelihood (aOR: 0.83; 95% CI: 0.81-0.84). Conclusions This study provides evidence showing differences in telehealth use associated with birth country. Strategies to ensure continued healthcare access for patients, whose native language is not English, such as providing interpreter services for telehealth consultations, would be beneficial. Perspectives Understanding cultural and linguistic differences may reduce health disparities in telehealth access in Australia and could present an opportunity to promote healthcare access in diverse communities.
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Affiliation(s)
- G Sezgin
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
| | - Z Dai
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
- College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - A McLeod
- Outcome Health, Melbourne, Australia
| | - C Pearce
- Outcome Health, Melbourne, Australia
| | - A Georgiou
- Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, Australia
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Tang Z, Dai Z, Gong M, Chen H, Zhou X, Wang Y, Jiang C, Yu W, Li L. Efficient removal of uranium(VI) from aqueous solution by a novel phosphate-modified biochar supporting zero-valent iron composite. Environ Sci Pollut Res Int 2023; 30:40478-40489. [PMID: 36609758 DOI: 10.1007/s11356-022-25124-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 09/23/2022] [Accepted: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Uranium (U) is an important strategic resource as well as a heavy metal element with both chemical and radiotoxicity. At present, the rapid and efficient removal of uranium from wastewater remains a huge challenge for environmental protection and ecological security. In this paper, phosphate-modified biochar supporting nano zero-valent iron (PBC/nZVI) was triumphantly prepared and fully characterized. The introduction of polyphosphate can greatly increase the specific surface area of biochar pores, and then the zero-valent iron can be evenly distributed on the surface of material, thus leading to excellent removal performance of the PBC/nZVI for U(VI). The theoretical maximum U(VI) removal capacity of PBC/nZVI was up to 967.53 mg/g at pH 5. The results of adsorption kinetics, isotherm, and thermodynamics showed that the adsorption of uranium by PBC/nZVI was a monolayer physical adsorption and endothermic reaction. And the PBC/nZVI has favorable selectivity toward uranium against the interference of coexisting metal ions. Further mechanism studies show that the excellent uranium removal performance of PBC/nZVI is mainly attributed to the synergistic effect of physical adsorption and chemical reduction. This work proves that the PBC/nZVI has a wide application prospect in the field of uranium wastewater treatment.
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Affiliation(s)
- Ziwei Tang
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Zhongran Dai
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Mi Gong
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Hong Chen
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Xiayu Zhou
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Yating Wang
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Cong Jiang
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Wanying Yu
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Le Li
- College of Public Health, Hengyang Medical School, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
- Hengyang Key Laboratory for Comprehensive Prevention and Control of Uranium Contamination and its Health Hazards, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
- Hunan Provincial Key Laboratory for Typical Environment Pollution and Health Hazard, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, University of South China, Hengyang, 421001, Hunan, People's Republic of China.
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Li J, Zang XY, Dai Z. Comparative clinical outcomes and predictive biomarkers of sintilimab combinations vs. single therapy in cancer: a systematic review and meta-analysis of randomized controlled trials. Eur Rev Med Pharmacol Sci 2023; 27:911-923. [PMID: 36808337 DOI: 10.26355/eurrev_202302_31184] [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: 02/23/2023]
Abstract
OBJECTIVE This study aimed to compare the efficacy and safety between sintilimab combinations and single treatment in cancer patients, as well as identify biomarkers for selection of patients who might benefit from the combination treatments. MATERIALS AND METHODS A search of randomized clinical trials (RCTs) comparing sintilimab combinations vs. single treatment in different tumors according to the PRISMA guidelines was performed. Selected endpoints included completion response rate (CR), objective response rate (ORR), disease control rate (DCR), overall survival (OS), progression-free survival (PFS), major adverse effects (AEs), immune-related adverse events (irAEs). Subgroup analyses based on different combination regimens, tumor type and basic biomarkers were included. RESULTS Results reported from 11 RCTs involving 2,248 patients were included in this analysis. Pooled results indicated that both sintilimab plus chemotherapy and sintilimab plus targeted therapy significantly improved CR [RR=2.44, 95% CI (1.14, 5.20), p=0.021; RR=2.91, 95% CI (1.29, 6.57), p=0.010], ORR [RR=1.34, 95% CI (1.13, 1.59), p=0.001; RR=1.70, 95% CI (1.13, 2.56), p=0.011], PFS [HR=0.56, 95% CI (0.43, 0.69), p<0.001; HR=0.56, 95% CI (0.49, 0.64), p<0.001] and OS [HR=0.59, 95% CI (0.48, 0.70), p<0.001]. Subgroup analyses suggested that the sintilimab-chemotherapy group exhibited a superior PFS benefit than the chemotherapy alone group regardless of age, gender, EGOS PS, PD-L1 expression, smoking status, and clinical stage. There were no significant statistical differences in the incidence of any grade and grade 3 or worse AEs between the two groups [RR=1.00, 95% CI (0.91, 1.10), p=0.991; RR=1.06, 95% CI (0.94, 1.20), p=0.352]. While the incidence of any grade irAEs was higher with sintilimab plus chemotherapy as compared to chemotherapy alone (RR=1.24, 95% CI (1.01, 1.54), p=0.044), but no significant difference was found for grade 3 or worse irAEs (RR=1.11, 95% CI (0.60, 2.03), p=0.741). CONCLUSIONS Sintilimab combinations brought benefits to a greater number of patients at the cost of a mild increase of irAEs. PD-L1 expression may not be used as a predictive biomarker, composite biomarkers consisting of PD-L1 and MHC class II expression are worth to be explored to enlarge the patient population that benefits from sintilimab combinations.
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Affiliation(s)
- J Li
- Pharmaceutical Department, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Guo B, Dai Z, Chen R, Liu J, Shi Z. Enhancing gosling growth and secretion of somatotrophic and thyrotrophic axis hormones through egg turning during incubation. Br Poult Sci 2023; 64:122-128. [PMID: 36083128 DOI: 10.1080/00071668.2022.2121641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
1. Growth performance of Yangzhou geese hatched from eggs with turning angles of 50° or 70° was evaluated in association with serum hormones and somatotrophic gene mRNA expression.2. Egg turning at 70° significantly (P< 0.05) increased hatchability, gosling quality and hatching weight. Gosling post-hatch body weight, leg and breast muscle weight in the 70° turning group was significantly heavier until 50 d of age.3. Serum concentrations of GH were significantly higher until 30 d of age in the 70° turning group goslings, and those of IGF-I and T3 were higher from hatching to 50 d of age.4. The mRNA expression of GHRH, pituitary GH, liver and leg muscle IGF-I were all significantly higher at 1 and 30 d of age after hatch, but not at 70 d after hatch, in the 70° turning group.5. Egg turning at 70° during incubation improves embryo and gosling quality and growth performance through up-regulation of gene expression and secretion of somatotrophic axis hormones, GHRH, GH and IGF-I, as well as T3.
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Affiliation(s)
- B Guo
- Key Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
- Laboratory of Animal Improvement and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Z Dai
- Key Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
- Laboratory of Animal Improvement and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - R Chen
- Key Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
- Laboratory of Animal Improvement and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - J Liu
- Key Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
- Laboratory of Animal Improvement and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
| | - Z Shi
- Key Laboratory of Protected Agriculture Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture and Rural Affairs Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
- Laboratory of Animal Improvement and Reproduction, Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu, China
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Chen L, Gao Y, Lian J, Li L, Ding D, Dai Z. Efficient photoreduction removal of uranium(VI) by O, K co-doped g-C3N4 under air atmosphere without sacrificial agents. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Fu H, Wang S, Zhang H, Dai Z, He G, Li G, Ding D. Remediation of uranium-contaminated acidic red soil by rice husk biochar. Environ Sci Pollut Res Int 2022; 29:77839-77850. [PMID: 35688975 DOI: 10.1007/s11356-022-20704-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 02/10/2022] [Accepted: 05/04/2022] [Indexed: 06/15/2023]
Abstract
Uranium (U) in the U-contaminated acidic red soil exhibits high mobility. In the present study, rice husk was used to produce biochar to remediate U-contaminated red soil under acid precipitation. Firstly, batch adsorption experiments showed that the dissolution of alkaline substance in biochar could buffer the pH value of acidic solution. The equilibrium pH value had a crucial influence on biochar adsorption capacity of U, and the neutral equilibrium pH value was favorable for adsorption. Then, the incubation experiments of red soil with biochar were performed, and the Synthetic Precipitation Leaching Procedure (SPLP) extraction of amended red soil showed that the short-term leachability of U was decreased from 26.53% in control group (without biochar) to 1.40% in 10% biochar-amended red soil. Subsequently, the sequential extraction showed that the fraction of U was mainly transformed from exchangeable and Fe/Mn oxide fraction to carbonate fraction after biochar amendment, and the total amount of exchangeable U and carbonate fraction U in soil was increased slightly. Finally, simulated acid rain leaching experiments showed that the capability of amended red soil to resist acid rain acidification was enhanced. And the long-term leachability of U in amended red soil was decreased from 26.37% in control group to 3.18% in the 10% biochar-amended red soil under the simulated acid rain leaching conditions. In conclusion, biochar has passivation effect on U in U-contaminated red soil, which can reduce the long-term and short-term mobility of U in acidic environments. This study provided an experimental basis for the application of biochar in remediation and improvement of U-contaminated acidic red soil.
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Affiliation(s)
- Haiying Fu
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, People's Republic of China
| | - Shuai Wang
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, People's Republic of China
| | - Hui Zhang
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, People's Republic of China
| | - Zhongran Dai
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, People's Republic of China
| | - Guicheng He
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, People's Republic of China
| | - Guangyue Li
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, People's Republic of China
| | - Dexin Ding
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China.
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, People's Republic of China.
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Liu Y, Gao Y, Chen L, Li L, Ding D, Dai Z. MnOx-decorated oxygen-doped g-C3N4 with enhanced photocatalytic activity for efficient removal of uranium(VI). Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Zertuche JP, Rabasa G, Lichtenstein AH, Matthan NR, Nevitt M, Torner J, Lewis CE, Dai Z, Misra D, Felson D. Alkylresorcinol, a biomarker for whole grain intake, and its association with osteoarthritis: the MOST study. Osteoarthritis Cartilage 2022; 30:1337-1343. [PMID: 35863678 PMCID: PMC9554937 DOI: 10.1016/j.joca.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 06/16/2022] [Accepted: 07/05/2022] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Higher intake of fiber has been associated with lower risk of incident symptomatic osteoarthritis (OA). We examined whether levels of alkylresorcinol (AR), a marker of whole grain intake, were associated with OA in subjects in The Multicenter Osteoarthritis (MOST) Study. METHOD Knee x-rays and knee pain were assessed at baseline and through 60-months. Stored baseline fasting plasma samples were analyzed for AR homologues (C17:0, C19:0, C21:0, C23:0, C25:0) and total AR levels (AR sum). Two nested case-control studies, one for incident radiographic OA and one for incident symptomatic OA were performed with participants re-assessed at 15, 30 and 60 months. Multivariable conditional logistic regression with baseline covariates including age, sex, BMI, physical activity, quadriceps strength, race, smoking, depressive symptoms, diabetes and knee injury tested the association of log transformed AR levels with OA outcomes. RESULTS Seven hundred seventy-seven subjects were, on average, in their 60's, and most were women. For 60-month cumulative incidence, there was no significant association between quartiles of AR concentration and incident radiographic (e.g., for incident radiographic OA, highest vs lowest quartile of AR sum showed RR = 0.93 (95% CI 0.59, 1.47), and for symptomatic OA RR was 1.22 (95% CI 0.76, 1.94). In secondary analyses examining 30-month incidence, high AR levels were associated with a reduced risk of X-ray OA (RR = 0.31 (95% CI 0.15, 0.64). CONCLUSION In primary analyses, AR levels were not associated with risk of OA, but secondary analyses left open the possibility that high AR levels may protect against OA.
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Affiliation(s)
| | | | | | | | - M Nevitt
- University of California, San Francisco, USA.
| | | | - C E Lewis
- University of Alabama at Birmingham, USA.
| | - Z Dai
- Flinders University, College of Medicine and Public Health, Adelaide, Australia.
| | - D Misra
- Beth Israel Deaconess Medical Center, HMS, USA.
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Dai Z, Zhao S, Lian J, Li L, Ding D. Efficient visible-light-driven photoreduction of U(VI) by carbon dots modified porous g-C3N4. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121590] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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15
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Ding Y, Huang X, Zhang H, Ma J, Li F, Zeng Q, Hu N, Wang Y, Dai Z, Ding D. Coupled variations of dissolved organic matter distribution and iron (oxyhydr)oxides transformation: Effects on the kinetics of uranium adsorption and desorption. J Hazard Mater 2022; 436:129298. [PMID: 35739799 DOI: 10.1016/j.jhazmat.2022.129298] [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: 04/04/2022] [Revised: 05/25/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
The interactions between dissolved organic matter (DOM) molecules and minerals play significant roles in affecting the fate of carbon and contaminants in soil environment. However, the mechanisms controlling the variations of DOM molecules distribution during the transformation of Fe (oxyhydr)oxides, and the effects of these variations on contaminant behaviors are still largely unknown. In this study, the dynamic variations of DOM properties and distributions, and the kinetics of uranium adsorption on and desorption from Fe (oxyhydr)oxides during the transformation were investigated, employing a combination of Orbitrap mass spectrometry (MS), high-resolution transmission electron microscopy (HR-TEM), and kinetic experiments. Orbitrap MS results indicated that aliphatic molecules and phenolic and polyphenolic molecules with lower O/C values were preferentially released to solution. HR-TEM results indicated that the coprecipitated DOM molecules by ferrihydrite were mainly released to solution rather than sorbed on the newly formed lepidocrocite or goethite during the transformation. Furthermore, the stirred-flow experiment results suggested that soil DOM significantly reduced the adsorption of uranium on, and accelerated the release of uranium from Fe (oxyhydr)oxides, which was ascribed to the changed distribution of DOM molecules and the structure and composition of Fe (oxyhydr)oxides. Our results contribute to predicting contaminant behaviors in soils.
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Affiliation(s)
- Yang Ding
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, PR China; School of Resource & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Xixian Huang
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China; Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, South China University of Technology, Guangzhou, Guangdong 510006, PR China.
| | - Hui Zhang
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, PR China; School of Resource & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Jianhong Ma
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, PR China; School of Resource & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Feng Li
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, PR China; School of Resource & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Qingyi Zeng
- School of Resource & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Nan Hu
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, PR China; School of Resource & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Yongdong Wang
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, PR China; School of Resource & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Zhongran Dai
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, PR China; School of Resource & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China
| | - Dexin Ding
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, PR China; School of Resource & Environment and Safety Engineering, University of South China, Hengyang, Hunan 421001, PR China.
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Ma J, Liu MR, Cui SY, Dai Z, Luo HM. [Progress and policy considerations on the pilot program of standardized training for public health physicians in China]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1069-1073. [PMID: 35922233 DOI: 10.3760/cma.j.cn112150-20220616-00615] [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: 06/15/2023]
Abstract
The standardized training for public health physicians plays an important role in exploring the cultivation public health professionals and strengthening the construction of public health service providers. In 2018, the National Health Commission of China launched a pilot program of standardized training for public health physicians in 10 provinces. This paper clarifies the definition of the standardized training for public health physicians, systematically analyzes the status quo of the training in China and other countries, articulates the design and progress of the training in the perspective of Centers for Disease Control and Prevention, and makes some suggestions for the priorities of the pilot training program, so as to provide reference and basis for the better development of the standardized training for public health physicians in China in the future.
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Affiliation(s)
- J Ma
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M R Liu
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S Y Cui
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z Dai
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H M Luo
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Yang X, Shen H, Li Q, Dai Z, Yang R, Huang G, Chen R, Wang F, Song J, Hua H. [Interference of P2X4 receptor expression in tumor-associated macrophages suppresses migration and invasion of glioma cells]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:658-664. [PMID: 35673908 DOI: 10.12122/j.issn.1673-4254.2022.05.05] [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: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect of interference of P2X4 receptor expression in tumor-associated macrophages (TAMs) on invasion and migration of glioma cells. METHODS C57BL/6 mouse models bearing gliomas in the caudate nucleus were examined for glioma pathology with HE staining and expressions of Iba-1 and P2X4 receptor with immunofluorescence assay. RAW264.7 cells were induced into TAMs using conditioned medium from GL261 cells, and the changes in mRNA expressions of macrophage polarization-related markers and the mRNA and protein expressions of P2X4 receptor were detected with RT-qPCR and Western blotting. The effect of siRNA-mediated P2X4 interference on IL-1β and IL-18 mRNA and protein expressions in the TAMs was detected with RT-qPCR and Western blotting. GL261 cells were cultured in the conditioned medium from the transfected TAMs, and the invasion and migration abilities of the cells were assessed with Transwell invasion and migration experiment. RESULTS The glioma tissues from the tumor-bearing mice showed a significantly greater number of Iba-1-positive cells, where an obviously increased P2X4 receptor expression was detected (P=0.001), than the brain tissues of the control mice (P < 0.001). The M2 macrophage markers (Arg-1 and IL-10) and M1 macrophage markers (iNOS and TNF-α) were both significantly up-regulated in the TAMs derived from RAW264.7 cells (all P < 0.01), but the up-regulation of the M2 macrophage markers was more prominent; the expression levels of P2X4 receptor protein and mRNA were both increased in the TAMs (P < 0.05). Interference of P2X4 receptor expression significantly lowered the mRNA(P < 0.01)and protein (P < 0.01, P < 0.05)expression levels of IL-1β and IL-18 in the TAMs and obviously inhibited the ability of the TAMs to promote invasion and migration of the glioma cells (P < 0.05). CONCLUSION Interference of P2X4 receptor in the TAMs suppresses the migration and invasion of glioma cells possibly by lowering the expressions of IL-1β and IL-18.
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Affiliation(s)
- X Yang
- Department of Pathology and Pathophysiology, Kunming Medical University, Kunming 650500, China
| | - H Shen
- Department of Pathology, Zhaotong First People's Hospital, Zhaotong 657099, China
| | - Q Li
- Clinic Skill Center, Kunming Medical University, Kunming 650500, China
| | - Z Dai
- Institute of Stomatology, Affiliated Stomatology Hospital, Kunming Medical University, Kunming 650500, China
| | - R Yang
- Institute of Stomatology, Affiliated Stomatology Hospital, Kunming Medical University, Kunming 650500, China
| | - G Huang
- Institute of Stomatology, Affiliated Stomatology Hospital, Kunming Medical University, Kunming 650500, China
| | - R Chen
- Institute of Stomatology, Affiliated Stomatology Hospital, Kunming Medical University, Kunming 650500, China
| | - F Wang
- Department of Pathology and Pathophysiology, Kunming Medical University, Kunming 650500, China
| | - J Song
- Electron Microscope, Kunming Medical University, Kunming 650500, China
| | - H Hua
- Department of Pathology and Pathophysiology, Kunming Medical University, Kunming 650500, China
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Sun L, Liu J, Li L, Zhen D, Dai Z, Tang S, Zhu B, Chen L, Chen H, Gong M, Tang Z, Hu Y. Advances of biosensors for UO22+ detecting based on specific DNAzyme. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ma J, Zhang M, Zhang H, Wang Y, Li F, Hu N, Dai Z, Ding Y, Ding D. Efficient removal of U(VI) in acidic environment with spent coffee grounds derived hydrogel. J Hazard Mater 2022; 426:127786. [PMID: 34810005 DOI: 10.1016/j.jhazmat.2021.127786] [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: 08/29/2021] [Revised: 10/25/2021] [Accepted: 11/11/2021] [Indexed: 06/13/2023]
Abstract
In this study, humic-like substances (HLSs) was extracted from spent coffee grounds (SCGs), and it together with poly acrylic acid (PAA), was used for the first time to synthesize hydrogel material, namely HLSs/PAA gel, by one-step radical polymerization. Its maximum theoretical sorption capacity toward U(VI) at pH 3.00 was 661.01 mg/g, and it could decrease the concentration of U(VI) in acidic actual groundwater from 0.2537 to 0.0003 mg/L, showing that the gel had excellent U(VI) removal efficiency in acidic environment. The SEM characterization of HLSs/PAA gel showed that its macroporous network structure maintained well after the sorption process, indicating that the gel had excellent acid-resistant property. Moreover, the gel exhibited excellent anti-interference performance in the interfering ions effect experiment. The gel integrates the merits of excellent U(VI) sorption properties, stability and anti-interference performance in acidic environment, and has promising application prospects in the remediation of acidic uranium wastewater.
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Affiliation(s)
- Jianhong Ma
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
| | - Min Zhang
- School of Resources, Environment and Safety Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Hui Zhang
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
| | - Yongdong Wang
- School of Resources, Environment and Safety Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Feng Li
- School of Resources, Environment and Safety Engineering, University of South China, Hengyang, Hunan, 421001, China
| | - Nan Hu
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
| | - Zhongran Dai
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
| | - Yang Ding
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
| | - Dexin Ding
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China.
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Zhu B, Li L, Dai Z, Tang S, Zhen D, Sun L, Chen L, Tuo C, Tang Z. Synthesis of amidoximated polyacrylonitrile/sodium alginate composite hydrogel beed and its use in selective and recyclable removal of U(VI). J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08233-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Ma J, Wang ZN, Liu MR, Liu XT, Deng JQ, Shao XY, Pei YX, Luo HM, Dai Z. [Emergency training need and effect evaluation analysis of novel coronavirus pneumonia in centers of disease control and prevention]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:1496-1499. [PMID: 34963250 DOI: 10.3760/cma.j.cn112150-20211031-01004] [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: 06/14/2023]
Abstract
A questionnaire was used to investigate the emergency training needs of novel coronavirus pneumonia of disease prevention and control institutions in provinces, deputy provincial level regions and cities specifically designated in the state plan, and the effect evaluation of emergency training activities conducted by Chinese Center for Disease Control and Prevention (China CDC). The results showed that 67.4% of 47 disease prevention and control institutions (31/46) believed that the emergency training at the initial stage of the epidemic should be conducted as soon as possible, and the form of network training should be given priority. The training should focus on the urgently needed technologies such as epidemiological investigation, formulation and response of prevention and control strategies, laboratory testing, etc. The teaching materials should highlight pertinence and practicability and be presented in the form of electronic video. The average satisfaction score of the video training conducted by China CDC was (8.81±1.125) and the score of audio-video courseware was (8.97±0.893). The needs analysis and evaluation of novel coronavirus pneumonia prevention and control in disease prevention and control institutions could provide reference for the follow-up training and improve the emergency training management.
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Affiliation(s)
- J Ma
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z N Wang
- Business Office, Chaoyang District Center for Disease Control and Prevention of Beijing, Beijing 100021, China
| | - M R Liu
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X T Liu
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J Q Deng
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X Y Shao
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y X Pei
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H M Luo
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z Dai
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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22
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Dai Z, Jambor I, Taimen P, Pantelic M, Elshaikh M, Dabaja A, Rogers C, Ettala O, Boström P, Aronen H, Merisaari H, Wen N. Accurate Prostate Cancer Detection and Segmentation Using Non-Local Mask R-CNN With Histopathological Ground Truth. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Ma J, Liu MR, Shao XY, Dai Z, Liang XF, Wang T, Zhang WP, Luo HM. [Current situation and suggestions of public health personnel training in disease control and prevention institutions]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1895-1899. [PMID: 34814630 DOI: 10.3760/cma.j.cn112338-20201021-01256] [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
Under the background that the national health has become the national priority development strategy, it is essential to speed up public health ability among talents. Based on the consulting project of the Chinese Academy of Engineering, "Research on the training strategy of medical and health personnel in China", this paper analyzes the current situation and existing problems of public health personnel training in disease control and prevention institutions. Based on three stages of public health education, this paper puts forward that the public health personnel training should first solve the problem of public health personnel team construction and create programs on college education-post graduate education-continuing education. Through the personnel training system, different training modes are designed for other groups of people to improve the ability of public health personnel in an all-around way.
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Affiliation(s)
- J Ma
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M R Liu
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X Y Shao
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z Dai
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X F Liang
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - T Wang
- School of Public Health, Shanxi Medical University, Taiyuan 030012, China
| | - W P Zhang
- School of Public Health, Shanxi Medical University, Taiyuan 030012, China
| | - H M Luo
- Department of Education and Training, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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24
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Zeng RL, Wu K, Dai Z, Xie YL. [The Museum of Western Studies on Chinese Medicine:Chinese medicine in the western societies]. Zhonghua Yi Shi Za Zhi 2021; 51:313-320. [PMID: 34794272 DOI: 10.3760/cma.j.cn112155-20201005-00155] [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
The historical artifacts displayed in the Museum of Western study on Chinese Medicine at Yunnan University of Chinese Medicine came from a variety of Chinese medical schools in America and European countries. They are in the memorial galleries for some well-known figures, such as George Soulié de Morant (Su Lie), Jacques-André Lavier (La Wei Ai), Felix Mann (Man Fu Li) and Manfred Porkert (Man Xi Bo), representing the development and status of respective Chinese medical schools in America and European countries. The displayed artifacts are nearly 3,000 photos, manuscripts, documents and more than 500 hours of audiovisual materials, including instruments for acupuncture and moxibustion, books, passports, letters and even supplies for their life. The displayed artifacts demonstrate the process and the access of people in the western societies to know, learn and take use of Chinese medicine.
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Affiliation(s)
- R L Zeng
- Institute of Western Studies on Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500 ,China
| | - K Wu
- Institute of Western Studies on Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500 ,China
| | - Z Dai
- Institute of Western Studies on Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500 ,China
| | - Y L Xie
- Institute of Western Studies on Chinese Medicine, Yunnan University of Chinese Medicine, Kunming 650500 ,China
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25
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Dai Z, Zhang Y, He Q, Zhao S, Zhu Y, Jin H, Chen J, Wang X. PH-0265 Diaphragm motion prediction based on optical surface with machine learning for liver tumor SBRT. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07280-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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26
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Wang X, Jian W, Zhou X, Meng H, Chen Y, Yang G, Zhang S, Wang Z, Tan X, Dai Z. PD-0752 Synthetic CT generation from cone-beam CT using deep-learning for breast adaptive radiotherapy. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07031-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Xu L, Wu Z, Wang Y, Dai Z, Feng Z, Sun X, Liu Z, Cheng J, Qiu Y, Zhu Z. LONP1 is associated with the incidence of idiopathic scoliosis possibly via defective mitochondrial function. Stud Health Technol Inform 2021; 280:253. [PMID: 34190100 DOI: 10.3233/shti210483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- L Xu
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
- Joint Scoliosis Research Center of The Chinese University of Hong Kong and Nanjing University, Nanjing & Hong Kong, China
| | - Z Wu
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Y Wang
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Z Dai
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Z Feng
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - X Sun
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Z Liu
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Jcy Cheng
- Joint Scoliosis Research Center of The Chinese University of Hong Kong and Nanjing University, Nanjing & Hong Kong, China
- Department of Orthopaedics and Traumatology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - Y Qiu
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
- Joint Scoliosis Research Center of The Chinese University of Hong Kong and Nanjing University, Nanjing & Hong Kong, China
| | - Z Zhu
- Department of Spine Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
- Joint Scoliosis Research Center of The Chinese University of Hong Kong and Nanjing University, Nanjing & Hong Kong, China
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Sun S, Fan Z, Zhao J, Dai Z, Zhao Y, Dai Y. Copper stimulates neonicotinoid insecticide thiacloprid degradation by Ensifer adhaerens TMX-23. J Appl Microbiol 2021; 131:2838-2848. [PMID: 34075672 DOI: 10.1111/jam.15172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 05/05/2021] [Accepted: 05/27/2021] [Indexed: 11/28/2022]
Abstract
AIMS Aims of this study are to elucidate the molecular mechanism of copper-improved thiacloprid (THI) degradation by Ensifer adhaerens TMX-23 and characterize copper resistance of this strain. METHODS AND RESULTS Resting cells of E. adhaerens TMX-23 were used to degrade THI, with formation of THI amide and 98·31% of 0·59 mmol l-1 THI was degraded in 100 min. The addition of copper improved the degradation of THI and showed little inhibitory effects on the growth of E. adhaerens TMX-23. E. adhaerens TMX-23 degraded THI to THI amide by nitrile hydratases (NhcA and NhpA). QPCR analysis indicated that the expression of nhpA was up-regulated in the presence of copper. E. adhaerens TMX-23 nitrile hydratases were purified, and enzyme assay of NhpA exhibited the highest NHase activity toward THI. The addition of copper activated the activity of NhcA. Soil degradation experiment indicated that E. adhaerens TMX-23 could quickly eliminate THI residual in copper-added soil. CONCLUSIONS Copper improved THI degradation by E. adhaerens TMX-23 was attributed to the induced expression of nhpA and activated NhcA. SIGNIFICANCE AND IMPACT OF THE STUDY This study broadens the investigation of regulatory mechanism of NHase expression and provided theoretical basis for using metal-resistant microbes to degrade pesticide in heavy metal co-contaminated environments.
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Affiliation(s)
- S Sun
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing, People's Republic of China.,The Key Laboratory of Biotechnology for Medicinal Plants of Jiangsu Province and School of Life Science, Jiangsu Normal University, Xuzhou, People's Republic of China
| | - Z Fan
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing, People's Republic of China
| | - J Zhao
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing, People's Republic of China
| | - Z Dai
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing, People's Republic of China
| | - Y Zhao
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing, People's Republic of China
| | - Y Dai
- Jiangsu Key Laboratory for Microbes and Functional Genomics, Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources, College of Life Science, Nanjing Normal University, Nanjing, People's Republic of China
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Liu MR, Ma J, Shao XY, Luo HM, Liang XF, Liu DF, Wang T, Zhang WP, Dai Z. [Survey on provincial disease prevention and control professionals' attitudes and cognition to public health physician standardized training in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:935-940. [PMID: 34814492 DOI: 10.3760/cma.j.cn112338-20201021-01259] [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
Objective: To understand the attitudes and cognition of disease control and prevention professionals at provincial level on public health physician standardized training and provide evidence for the improvement of the standardized training and exploration of more effective training mode in China. Methods: By cluster sampling, 2 193 professionals at provincial centers for disease control and prevention (CDC) in 6 provinces, including Jiangsu and Guangdong, Shanxi and Hubei,Sichuan and Xinjiang were selected as the study subjects, the sample size was estimated to be 1 933 persons. Results: A total of 1 716 provincial-level CDC professionals were surveyed, the support rate to the standardized training was 70.7%(1 213/1 716). The level of support was negatively associated with the educational level of professionals and their specialty of public health and preventive medicine. Of 875 public health and preventive medicine professionals, 61.6%(318/516) of those with master's degree or above supported the standard training for public health physicians, which was lower than 73.1%(225/308) of those with bachelor's degree and 86.3%(44/51) of those with college degree or below. There were 14.9%(232/1 555) of the respondents suggested a two year training, and 60.4%(933/1 544) suggesting a field training mode. In terms of training content, 86.6%(1 355/1 564) suggesting "epidemiological survey and public health practice", and 76.7%(1 199/1 564) suggesting "basic theories and methodology". Conclusions: In general, the professionals of provincial CDC showed a relatively low interest in the standardized training for public health physicians and failed to reach a consensus. Besides, they were ill-informed about current training duration, method and content. Thas, the professionals at provincial CDC are suggested to be the key target-population whom should be mobilized during the training pilot period, especially the highly educated ones with relevant specialties of public health. It is suggested that public health physician standardized training should to be implemented in whole CDC system to reach full consensus based on its practical achievements and effects. It is also suggested to establish public health graduate medical education system in China.
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Affiliation(s)
- M R Liu
- Department of Education and Training (Graduate School), Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - J Ma
- Department of Education and Training (Graduate School), Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X Y Shao
- Department of Education and Training (Graduate School), Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H M Luo
- Department of Education and Training (Graduate School), Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X F Liang
- Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - D F Liu
- Department of Education and Training (Graduate School), Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - T Wang
- School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - W P Zhang
- School of Public Health, Shanxi Medical University, Taiyuan 030001, China
| | - Z Dai
- Department of Education and Training (Graduate School), Chinese Center for Disease Control and Prevention, Beijing 102206, China
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30
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Abdelaziz A, Chen J, Sallee B, Wang E, Dai Z, Loesch E, Perez-Lorenzo R, Bordone L, Christiano A. 693 Gut dysbiosis plays a role in the development of alopecia areata. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Dai Z, Wang E, Lee E, Monga I, Zhang M, Christiano A. 040 Single-cell RNA sequencing identifies a disease-dominant CD8+ T cell population co-expressing both activating and inhibitory receptors of the NKG2 family. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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32
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Lee E, Wang E, Dai Z, Monga I, Christiano A. 229 Single cell transcriptomics identifies a potential role for Arg1+ macrophages in alopecia areata pathogenesis. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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33
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Lee E, Dai Z, Wang E, Chang E, Christiano A. 037 Functional interrogation of immune cell types identified by single-cell RNA sequencing in alopecia areata. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Khan A, McGovern J, Yang Z, Wang C, Hughes T, Dabela E, Garzon M, Lauren C, Levin L, Dai Z, Hayes M, Connolly J, Mentch F, Almoguera B, Sleiman P, Hakonarson H, Denny J, Love J, Shalek A, Hripcsak G, Weng C, Ionita-Laza I, Kiryluk K, Petukhova L. 570 A genome-wide association study in an African American cohort implicates IL-12A in acne. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Dai Z, Wang E, Lee E, Zeng W, Perez-Lorenzo R, Christiano A. 038 High-throughput single-cell αβ TCR sequencing identifies pathogenic CD8+ T cell clones that are sufficient to induce alopecia areata in a C3H/HeJ retrogenic model. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Feng Y, Zhu H, Hu X, Liu Y, Xing P, Wang H, Ji X, Dai Z, Shi Y. P76.50 Analysis of Efficacy and Safety of First Generation EGFR-TKI plus Apatinib in Treating Advanced NSCLC after EGFR-TKI Treatment Failure. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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37
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Ying S, Dai Z, Xi Y, Li M, Yan J, Yu J, Chen Z, Shi Z. Metabolomic evaluation of serum metabolites of geese reared at different stocking densities. Br Poult Sci 2021; 62:304-309. [PMID: 33336589 DOI: 10.1080/00071668.2020.1849556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
1. Stocking density is an issue for poultry production. High stocking density can impact biochemical parameters, production, and reproductive performance; however, information regarding the effects of stocking density on serum metabolites in geese is limited.2. Twenty-day-old, Sanhua male geese (n = 240) were allocated to one of two experimental groups for 50 days. One group was housed under a low stocking density (LSD; two birds per m2) and one under a high stocking density (HSD; five birds per m2). Body weight and feed intake were recorded every 10 d. Eight serum samples per group were used for metabonomic analysis by liquid chromatography-mass spectrometry.3. Stocking density did not affect the spleen, liver, thymus, or bursa of Fabricius weights after 50 d. Feed intake and body weight was significantly lower in geese from the HSD group versus the LSD group (P < 0.05). Thirty-six differential serum metabolites were identified (P < 0.05), indicating altered amino acid, carbohydrate, lipid and vitamin cofactor metabolism.4. The results demonstrated that high-density stocking impacts geese, and provides insights into the mechanisms underlying the adverse health effects associated with HSD.
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Affiliation(s)
- S Ying
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - Z Dai
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - Y Xi
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - M Li
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - J Yan
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - J Yu
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - Z Chen
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
| | - Z Shi
- Institute of Animal Science, Laboratory of Animal Improvement and Reproduction, Jiangsu Academy of Agricultural Sciences, Nanjing, PR China.,Key Laboratory for Protected Agricultural Engineering in the Middle and Lower Reaches of Yangtze River, Ministry of Agriculture, Nanjing, PR China
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Bhat S, Trieu K, Dai Z, Leander K, Gigante B, Qian F, Korat A, Sun Q, Pan X, Laguzzi F, Cederholm T, de Faire U, Hellénius M, Wu J, Risérus U, Marklund M. Biomarkers of Dairy Fat Intake, Incident Cardiovascular Disease, and All-Cause Mortality: A Systematic Review and Meta-analysis. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.06.405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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39
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Dai Z, Iguchi N, Takamisawa I, Takayama M, Nanasato M, Kanisawa M, Mizuno N, Isobe M. Percutaneous transluminal septal myocardial ablation markedly reduces energy loss in hypertrophic obstructive cardiomyopathy: a four-dimensional flow magnetic resonance imaging study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2081] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Functional follow-up modalities of hypertrophic obstructive cardiomyopathy (HOCM) subjected to percutaneous transluminal septal myocardial ablation (PTSMA) are limited mainly to echocardiography and catheterization. Recent advancements in four-dimensional (4D) flow magnetic resonance imaging (MRI) have enabled us to assess patients from the perspective of fluid dynamics by visualising blood flow and calculating quantitative parameters such as wall shear stress and energy loss within cardiac chambers or blood vessels. Several reports have demonstrated that the intra-cardiac energy loss decreased along with improvement of cardiac function achieved by treatment of cardiac diseases. Whether changes in energy loss occur along with PTSMA in HOCM patients and the underlying mechanism remain unknown.
Purpose
This study sought to investigate the influence of PTSMA in patients with HOCM on energy loss in the left ventricle (LV) and aortic root measured by 4D flow MRI.
Methods
We retrospectively recruited HOCM patients who underwent PTSMA at a referral centre from May to November 2019. Patients who underwent 4D flow MRI both before and after PTSMA were included. We collected demographic and clinical data from electronic health records. MRI scans implemented two-dimensional phase-contrast imaging of the three-chamber plane with three-directional velocity, using a 1.5 T scanner. Furthermore, 4D blood flow analysis was performed on off-line saved data, using iTFlow version 1.9. We assessed energy loss in one cardiac cycle within the three-chamber plane of the LV and aortic root (area surrounded by the LV endocardium, sinotubular junction, and mitral annulus).
Results
This study finally included 12 patients, whose mean age was 66±12 years, and 5 (42%) of whom were men. The pressure gradient between the LV apex and ascending aorta was 81±32 mmHg before and 20±22 mmHg immediately after PTSMA (P<0.005, paired). Before PTSMA, 6 patients were in New York Heart Association functional class III and the other 6 in class II. However, after PTSMA, 10 patients improved to class I and 2 to class II. PTSMA reduced energy loss in one cardiac cycle within the three-chamber plane of the LV and aortic root, from 79±36 mJ/m to 55±19 mJ/m (P=0.001, paired).
Conclusions
PTSMA in patients with HOCM reduced energy loss within the LV and aortic root, indicating significant decrease with cardiac workload. Four-dimensional flow MRI of the three-chamber plane to assess energy loss within the LV and aortic root is a time-efficient and reproducible quantitative method to evaluate the effects of PTSMA. Given its non-invasive nature, it also enables to sequentially follow-up HOCM patients who underwent PTSMA.
Periprocedural changes of energy loss
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Z Dai
- Sakakibara Heart Institute; The University of Tokyo, Tokyo, Japan
| | - N Iguchi
- Sakakibara Heart Institute, Tokyo, Japan
| | | | - M Takayama
- Sakakibara Heart Institute, Tokyo, Japan
| | - M Nanasato
- Sakakibara Heart Institute, Tokyo, Japan
| | - M Kanisawa
- Sakakibara Heart Institute, Tokyo, Japan
| | - N Mizuno
- Sakakibara Heart Institute, Tokyo, Japan
| | - M Isobe
- Sakakibara Heart Institute, Tokyo, Japan
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40
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Feldman A, Dai Z, Zong W, Pantelic M, Elshaikh M, Wen N. Utilizing Semi-Supervised Learning and Image Matting in Combination With Mask R-CNN for Accurate Dominant Intraprostatic Lesion Identification and Segmentation on Multiparametric-MRI. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Dai Z, Sun Y, Zhang H, Ding D, Li L. Photocatalytic reduction of U(VI) in wastewater by mGO/g-C 3N 4 nanocomposite under visible LED light irradiation. Chemosphere 2020; 254:126671. [PMID: 32334243 DOI: 10.1016/j.chemosphere.2020.126671] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 01/31/2020] [Revised: 03/17/2020] [Accepted: 03/31/2020] [Indexed: 06/11/2023]
Abstract
Efficient elimination of U(VI) from uranium wastewater is an urgent task for sustainable nuclear energy and environmental protection. In this study, magnetic graphene oxide decorated graphitic carbon nitride (mGO/g-C3N4) nanocomposite was prepared and used for photocatalytic reduction of U(VI) in wastewater under visible LED light irradiation for the first time. The batch experiments indicated that the mGO/g-C3N4 (mGCN) nanocomposite could efficiently reduce U(VI) under visible LED light, and a high U(VI) extraction capacity of 2880.6 mg/g was obtained with an extraction efficiency of 96.02%. The transmission electron microscopy (TEM) elemental mapping, X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analyses demonstrated that the soluble U(VI) was immobilized by transforming it to metastudtite ((UO2)O2·2H2O) by mGCN nanocomposite under visible LED light irradiation. This work indicated that the mGCN is a promising visible light catalyst for treatment of uranium wastewater.
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Affiliation(s)
- Zhongran Dai
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
| | - Yusu Sun
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
| | - Hui Zhang
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
| | - Dexin Ding
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China.
| | - Le Li
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
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Lu W, Dai Z, Li L, Liu J, Wang S, Yang H, Cao C, Liu L, Chen T, Zhu B, Sun L, Chen L, Li H, Zhang P. Preparation of composite hydrogel (PCG) and its adsorption performance for uranium(VI). J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112604] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Huan S, Jin J, Shi CX, Li T, Dai Z, Fu XJ. Overexpression of miR-146a inhibits the apoptosis of hippocampal neurons of rats with cerebral hemorrhage by regulating autophagy. Hum Exp Toxicol 2020; 39:1178-1189. [PMID: 32090627 DOI: 10.1177/0960327120907131] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
In this study, to investigate the effect of overexpression of miR-146a on autophagy of hippocampal neurons in rats with intracerebral hemorrhage (ICH), 72 Sprague-Dawley rats were randomly divided into the sham, ICH, miR-146a agomir, and miR-146a agomir control groups. The ICH model was constructed by injection of collagenase VII. The apoptosis of hippocampal neurons was measured by TUNEL assay. The levels of LC3 and Beclin 1 were analyzed by immunohistochemistry. Mitochondrial autophagy was examined by transmission electron microscopy. The levels of LC3A, LC3B, Beclin 1, Bax, Bcl-2, and cleaved caspase 3 were examined by Western blot. Western blot was also used to evaluate the expression of nuclear factor κB signaling pathway-related factors. To examine the effect of autophagy inhibitor (3-methyladenine (3-MA)) on miR-146a-regulated apoptotic protein expression, 30 rats were further divided into the sham, ICH, miR-146a agomir, 3-MA, and miR-146a + 3-MA groups. The levels of Bax, Bcl-2, and cleaved caspase 3 were examined by Western blot. Compared with the sham group, the nerve function scores, brain water content, the percentage of apoptotic cells, and the expression levels of LC3, Beclin 1, Bax, cleaved caspase 3, and p-P65 in the hippocampus of rats in the ICH group were all significantly increased (p < 0.05), whereas the expression levels of miR-146a, Bcl-2, and p-IκBα were markedly decreased (p < 0.05). Mitochondrial autophagy was also evident. Furthermore, compared with the ICH group, the results of the abovementioned tests in the miR-146a agomir group were reversed. The overexpression of miR-146a inhibited the autophagy of hippocampal neurons in rats with ICH.
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Affiliation(s)
- S Huan
- Department of Rehabilitation Sciences, Qingdao Women and Children Hospital, Qingdao University, Qingdao, China
| | - J Jin
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - C-X Shi
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - T Li
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Z Dai
- Department of Anesthesiology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - X-J Fu
- Department of Nephrology, Huai'an Hospital Affiliated to Xuzhou Medical University and Huai'an Second Hospital, Huai'an, China
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Abstract
Public health physician is one of the four statutory types of physicians in China, but there is no consensus on their connotation. The main problems are that public health physician is confused with those who perform public health tasks, the relationship between public health physician and clinician and the connotation of prescription right is not clear, and there is limitation in public health education and relevant laws and regulations. Public health physician is positioned as professionals who monitor, investigate, evaluate, and intervene in population health-related issues. It is suggested to retain the practicing qualification of public health physicians and highlight the attribute of public health physicians' prescribing the prescriptions for community health. Encourage public health physicians to obtain qualification for clinicians to individual prescription, Encourage clinicians to access to public health physician qualification. Improve public health school education, take the pilot of public health physician standardization training, cultivate "prevention and treatment combined" physician.
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Affiliation(s)
- J Lei
- Specialty Administrative Department of Centre for Disease Control and Prevention of Shandong Province, Jinan 250014, China
| | - H M Luo
- Education and Training Department of Chinese Centre for Disease Control and Prevention, Beijing 102206, China
| | - Z Dai
- Education and Training Department of Chinese Centre for Disease Control and Prevention, Beijing 102206, China
| | - J Ma
- Education and Training Department of Chinese Centre for Disease Control and Prevention, Beijing 102206, China
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Fu H, Ding D, Sui Y, Zhang H, Hu N, Li F, Dai Z, Li G, Ye Y, Wang Y. Transport of uranium(VI) in red soil in South China: influence of initial pH and carbonate concentration. Environ Sci Pollut Res Int 2019; 26:37125-37136. [PMID: 31745769 DOI: 10.1007/s11356-019-06644-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 12/02/2018] [Accepted: 09/27/2019] [Indexed: 06/10/2023]
Abstract
Uranium-contaminated wastewater associated with uranium (U) mining and processing inevitably releases into soil environment. In order to assess the risk of U wastewater contamination to groundwater through percolation, U adsorption and transport behavior in a typical red soil in South China was investigated through batch adsorption and column experiments, and initial pH and carbonate concentration were considered of the high-sulfate background electrolyte solution. Results demonstrated that U adsorption isotherms followed the Freundlich model. The adsorption of U to red soil significantly decreased with the decrease of the initial pH from 7 to 3 in the absence of carbonate, protonation-deprotonation reactions controlled the adsorption capacity, and lnCs had a linear relationship with the equilibrium pH (pHeq). In the presence of carbonate, the adsorption was much greater than that in the absence of carbonate owing to the pHeq values buffered by carbonate, but the adsorption decreased with the increase of the carbonate concentration from 3.5 to 6.5 mM. Additionally, the breakthrough curves (BTCs) obtained by column experiments showed that large numbers of H+ and CO32- competed with the U species for adsorption sites, which resulted in BTC overshoot (C/C0 > 1). Numerical simulation results indicated that the BTCs at initial pH 4 and 5 could be well simulated by two-site chemical non-equilibrium model (CNEM), whereas the BTCs of varying initial carbonate concentrations were suitable for one-site CNEM. The fractions of equilibrium adsorption sites (f) seemed to correlate with the fractions of positively charged complexes of U species in solution. The values of partition coefficients (kd') were lower than those measured in batch adsorption experiments, but they had the same variation trend. The values of first-order rate coefficient (ω) for all BTCs were low, representing a relatively slow equilibrium between U in the liquid and solid phases. In conclusion, the mobility of U in the red soil increased with the decrease of the initial pH and with the increase of the initial carbonate concentrations.
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Affiliation(s)
- Haiying Fu
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, Hengyang, 421001, China
| | - Dexin Ding
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China.
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, Hengyang, 421001, China.
| | - Yang Sui
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, Hunan, People's Republic of China
| | - Hui Zhang
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, Hengyang, 421001, China
| | - Nan Hu
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, Hengyang, 421001, China
| | - Feng Li
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, Hengyang, 421001, China
| | - Zhongran Dai
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, Hengyang, 421001, China
| | - Guangyue Li
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, Hengyang, 421001, China
| | - Yongjun Ye
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, Hengyang, 421001, China
| | - Yongdong Wang
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, People's Republic of China
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, Hengyang, 421001, China
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Dai Z, Boiko V, Markowska M, Gerus A, Grzeszkiewicz K, Hölsä J, Saladino M, Hreniak D. Optical studies of Y3(Al,Ga)5O12:Ce3+,Cr3+,Nd3+ nano-phosphors obtained by the Pechini method. J RARE EARTH 2019. [DOI: 10.1016/j.jre.2019.04.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li L, Liao Q, Cao C, Tang S, Ding D, Yuan Y, Cheng B, Dai Z, Ma D, Lu W, Hou S. 4-Sulfonylcalix[6]Arene Modified Fe₃O₄@ Aspergillus Niger Biosorbents for Effective Removal of Uranium(VI) from Aqueous Solutions. J Nanosci Nanotechnol 2019; 19:6978-6986. [PMID: 31039850 DOI: 10.1166/jnn.2019.16602] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A biosorbent, 4-sulfonylcalix[6]arene modified Fe₃O₄@Aspergillus Niger (MFSC), was successfully prepared through a two-step route for the effective removal of uranium (U(VI)) from aqueous solutions with high selectivity. The structure of MFSC was characterized by FT-IR, SEM, XRD, TGA and VSM, respectively. The impacts of various experimental parameters were investigated in detail. The results indicated that the biosorption of U(VI) on MFSC was mainly attributed to the electrostatic attraction (91% within 8 hours for U(VI)). The adsorption kinetics and adsorption isotherm of U(VI) were found to follow the pseudo second-order model and to be fitted by the Langmuir model, respectively. The thermodynamic parameters revealed that the adsorption process was spontaneous and endothermic. The findings herein highlight the MFSC with high ability for removal of U(VI) from aqueous solutions.
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Affiliation(s)
- Le Li
- School of Public Health, University of South China, Hengyang 421001, P. R. China
| | - Qi Liao
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, University of South China, Hengyang 421001, P. R. China
| | - Chen Cao
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, University of South China, Hengyang 421001, P. R. China
| | - Shuangyang Tang
- Institute of Pathogenic Biology, University of South China, Hengyang 421001, P. R. China
| | - Dexin Ding
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, University of South China, Hengyang 421001, P. R. China
| | - Yali Yuan
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, P. R. China
| | - Bin Cheng
- School of Public Health, University of South China, Hengyang 421001, P. R. China
| | - Zhongran Dai
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, University of South China, Hengyang 421001, P. R. China
| | - Dandan Ma
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Wei Lu
- School of Public Health, University of South China, Hengyang 421001, P. R. China
| | - Shaoyan Hou
- Hunan Province Key Laboratory of Green Development Technology for Extremely Low Grade Uranium Resources, University of South China, Hengyang 421001, P. R. China
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Boiko V, Zeler J, Markowska M, Dai Z, Gerus A, Bolek P, Zych E, Hreniak D. Persistent luminescence from Y3Al2Ga3O12 doped with Ce3+ and Cr3+ after X-ray and blue light irradiation. J RARE EARTH 2019. [DOI: 10.1016/j.jre.2019.03.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dai Z, Asano T, Ohde S, Komiyama N. P1643An exploratory analysis for the optimal monitoring interval of N-terminal pro-B-type natriuretic peptide in patients with stable heart failure. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0402] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
N-terminal pro-B-type natriuretic peptide (NT-proBNP) is a potential biomarker for monitoring the status of heart failure. However, the optimal monitoring interval is unknown. This study aims to investigate minimal informative monitoring interval of NT-proBNP in patients with stable chronic heart failure.
Methods
In this retrospective open cohort study, adult patients followed up at a tertiary hospital for chronic heart failure with NT-proBNP measurements were included if they had been previously admitted due to acute heart failure and were free from readmission over 6 months after discharge. We analyzed NT-proBNP measured between 6 months after discharge and the timepoint of an alteration of medication regimen or readmission due to worsening of heart failure. To distinguish actual progression of the disease from biological variability and measurement error, the signal-to-noise ratio method was applied with a random-effects model. Stratified analysis was performed according to underlying risks.
Results
In this analysis, 368 patients were included with NT-proBNP measured between July 2009 and December 2017. The patients had 6.0 times of NT-proBNP measurements in median (interquartile range [IQR] 4.0–10.0) during the follow-up period (median 12.0 months [IQR 6.0–27.0]). In the estimates of the random-effects model, signal (i.e. actual progression of the disease) exceeded noise (i.e. biological variability and measurement error) at 8.1 months (95% confidence interval [CI]: 5.7–10.1) after the index measurement. In a subgroup analysis according to the AHEAD risk score, the minimal informative monitoring interval was shortened as the risk score increased (0–1 point: 12.3 months [95% CI: 10.3–14.5]; 2–3 points: 8.0 months [95% CI: 6.8–9.7]; 4–5 points: 3.3 months [95% CI: 3.0–3.8]; Figure).
Informative intervals stratified by risk
Conclusion
In patients with stable chronic heart failure, the overall minimal informative monitoring interval of NT-proBNP measurement was 8.1 months, which varies by underlying risk. The optimal monitoring interval could be lengthened especially for patients at lower risk.
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Affiliation(s)
- Z Dai
- St. Luke's International Hospital, Department of Cardiology, Tokyo, Japan
| | - T Asano
- St. Luke's International Hospital, Department of Cardiology, Tokyo, Japan
| | - S Ohde
- St. Luke's International University, Graduate School of Public Health, Tokyo, Japan
| | - N Komiyama
- St. Luke's International Hospital, Department of Cardiology, Tokyo, Japan
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50
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Dai Z, Sun Y, Zhang H, Ding D, Li L. Rational Synthesis of Polyamidoxime/Polydopamine-Decorated Graphene Oxide Composites for Efficient Uranium(VI) Removal from Mine Radioactive Wastewater. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03934] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Zhongran Dai
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
| | - Yusu Sun
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
| | - Hui Zhang
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
| | - Dexin Ding
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
| | - Le Li
- Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang 421001, China
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