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An C, Huang B, Jiang J, Wang X, Li N, Liu H, Shen Y, Sun C, Zhan S, Li X, Wang C, Zeng Z, Cui H, Wu Q, Zhang Y, Guo Z, Zhang P, Lynch I, Gao JM, Wang Y. Design and Synthesis of a Water-Based Nanodelivery Pesticide System for Improved Efficacy and Safety. ACS Nano 2024; 18:662-679. [PMID: 38134332 DOI: 10.1021/acsnano.3c08854] [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] [Indexed: 12/24/2023]
Abstract
Developing an environmentally friendly and safe nanodelivery system is crucial to improve the efficacy of pesticides and minimize environmental and health risks. However, preparing a completely water-based nanopesticide without using harmful solvents is a technical challenge. In this study, a water-based nanodelivery pesticide system was constructed to improve the efficacy and safety of Emamectin Benzoate (EB). A specific surfactant, 29-(4-(5-hydroxynonan-5-yl)phenoxy)-3,6,9,12,15,18,21,24,27-nonaoxanonacosan-1-ol (SurEB) was designed and synthesized to form a water-based nanodelivery system (EBWNS) with EB. Molecular dynamics simulations revealed the self-assembly and interaction forces between SurEB and EB in water, providing insights into the formation mechanism of EBWNS nanoparticles. The nanodelivery system showed the prolonged effectivity of EB with reduced degradation and demonstrated a good control efficacy for multiple target pests, such as red spider mite, beet armyworm larvae (Lepidoptera: Noctuidae), and rice stem borers (Chilo suppressalis). Toxicology tests on various objects demonstrated that the EBWNS has low toxicity for seeds, HaCaT cells, zebrafish, earthworm, and E. coli. This study provides a distinctive perspective for developing environmentally friendly nanopesticide formulations, which clarified a water-based treatment method for specific lipid-soluble pesticides. The water-based nanodelivery pesticide system has the potential to improve the efficacy and safety of pesticides in the process of field applications.
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Affiliation(s)
- Changcheng An
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
- College of Science, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Bingna Huang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jiajun Jiang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xinyue Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ningjun Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Huihui Liu
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xingye Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Qingjun Wu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Youjun Zhang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhiling Guo
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Peng Zhang
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Iseult Lynch
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Jin-Ming Gao
- College of Science, College of Chemistry & Pharmacy, Northwest A&F University, Yangling 712100, China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Jiang J, Huang B, Li N, An C, Sun C, Shen Y, Gooneratne R, Cui H, Zhan S, Wang Y. Simple and fast colorimetric detection of lipopolysaccharide based on aptamer and SYBR Green I mediated aggregation of gold nanoparticles. Int J Biol Macromol 2022; 223:231-239. [PMID: 36347371 DOI: 10.1016/j.ijbiomac.2022.10.276] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/26/2022] [Accepted: 10/31/2022] [Indexed: 11/08/2022]
Abstract
Lipopolysaccharide (LPS) poses a considerable threat to food safety and human health. A colorimetric assay for LPS detection based on LPS binding aptamer (LBA) and SYBR Green I (SG) mediated aggregation of gold nanoparticles (AuNPs) was established. In the absence of LPS, the LBA was absorbed onto the AuNPs surface which prevented SG-induced aggregation of AuNPs, and the sensing system exhibited red color. When LPS was added, it interacted with the LBA, forming a complex. At higher LPS concentration, many LBAs were exhausted resulting in SG-induced aggregation of AuNPs, and color change from red to blue. The range of colorimetric detection of LPS was linear in 0-12 EU/mL, with a limit of detection of 0.1698 EU/mL. Spiked LPS in real samples and interfering substances were also identified. This assay ingeniously using the fluorescent dye SG as an effective trigger of AuNPs aggregation, is rapid and facile than most of those earlier reported LBA-based LPS assays, and there is potential to be modified to construct assays for other targets.
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Affiliation(s)
- Jiajun Jiang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Bingna Huang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ningjun Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Changcheng An
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
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Shen Y, An C, Jiang J, Huang B, Li N, Sun C, Wang C, Zhan S, Li X, Gao F, Zhao X, Cui H, Gooneratne R, Wang Y. Temperature-Dependent Nanogel for Pesticide Smart Delivery with Improved Foliar Dispersion and Bioactivity for Efficient Control of Multiple Pests. ACS Nano 2022; 16:20622-20632. [PMID: 36469037 DOI: 10.1021/acsnano.2c07517] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The use of nanomaterials and nanotechnology to construct a smart pesticide delivery system with target-oriented and controlled-release functions is important to increase the effective utilization rate and minimize environmental residue pollution. A temperature-dependent delivery system can modulate the release of pesticide with temperature to improve the efficacy and precision targeting. A series of poly(N-isopropylacrylamide) (PNIPAM)-based nanogels with high deformability and tunable structure were successfully constructed for smart pesticide delivery and effective pest control. A lambda-cyhalothrin (LC)-loaded Pickering emulsion (LC@TNPE) with a stable gel-like network structure was further formed by the temperature-dependent nanogel to encapsule the pesticide. The foliar wettability, photostability, and controlled-release property of LC@TNPE were effectively enhanced compared to the commercial formulation because of the encapsulation and stabilization of nanogel. The release rate of LC positively correlated with temperature changes and thereby adapted to the trend of pest population increase at higher temperature. The LC@TNPE displayed improved control efficacy on multiple target pests including Plutella xylostella, Aphis gossypii, and Pieris rapae compared with the commercial suspension concentrate and microcapsule suspension, and it showed marked efficacy to control Pieris rapae for an extended duration even at a 40% reduced dosage. Furthermore, the safety was evaluated systematically on cells in vitro and with a nontarget organism. Studies confirmed that the system was relatively safe for HepG2 cells and aquatic organism zebrafish. This research provides an insight into creating an efficient and environmentally friendly pesticide nanoformulation for sustainable agriculture production.
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Affiliation(s)
- Yue Shen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Changcheng An
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Jiajun Jiang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Bingna Huang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Ningjun Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Xingye Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Fei Gao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
| | - Ravi Gooneratne
- Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln7647, New Zealand
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing100081, China
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Zhang Y, Cheng Y, Li N, Hou Y, Jiao L, Yuan Y, Wang L, Huang Z, Wu L, Han F, Wang Y, Zhan S. Niemann-Pick Type C with Sleep Disorders: Central Sleep Apnea and cataplexy. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.463] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Sun C, Li X, Huang B, Li N, Wang A, An C, Jiang J, Shen Y, Wang C, Zhan S, Gooneratne R, Cui H, Wang Y. Construction and characterization of ethyl cellulose-based nano-delivery system for phenamacril. Int J Biol Macromol 2022; 221:1251-1258. [PMID: 36070820 DOI: 10.1016/j.ijbiomac.2022.08.208] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 08/25/2022] [Accepted: 08/31/2022] [Indexed: 11/15/2022]
Abstract
Fungicide-resistant Fusarium has become a threaten to wheat production. Novel fungicide formulations can improve the efficacy of active ingredient and minimize the emergence of resistance. Encapsulation of fungicides in biodegradable carriers, especially, in polysaccharide, is a feasible approach to develop environment-friendly and efficient formulation. This study focused on the synthesis of ethyl cellulose-based phenamacril nano-delivery system by combining emulsion-solvent evaporation and high-pressure homogenization technology to improve the control of fusarium head blight in wheat. Emulsifier 125 and Tersperse 2500 were screened from eleven commonly used surfactants. Emulsifier 125 and Tersperse 2500 in a ratio of 2:1 and phenamacril nanocapsules with the mean particle size of 152.5 ± 1.3 nm were prepared. These showed excellent storage stability and wettability on crop leaves. A bioassay comparing the nanocapsules with a commercial preparation against Fusarium graminearum showed significantly improved biological activity. This formulation could be used to effectively not only to control fusarium head blight but also delay the occurrence of resistance.
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Affiliation(s)
- Changjiao Sun
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Xingye Li
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Bingna Huang
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Ningjun Li
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Anqi Wang
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Changcheng An
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Jiajun Jiang
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Ravi Gooneratne
- Department of Wine, Food and Molecular Biosciences, Faculty of Agriculture and Life Sciences, Lincoln University, Lincoln 7647, New Zealand
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agricultural, Chinese Academy of Agricultural Sciences, No.12 South Street of Zhongguancun, Haidian District, Beijing 100081, China.
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Gao F, Cui B, Wang C, Li X, Li B, Zhan S, Shen Y, Zhao X, Sun C, Wang C, Wang Y, Zeng Z, Cui H. Nano-EMB-SP improves the solubility, foliar affinity, photostability and bioactivity of emamectin benzoate. Pest Manag Sci 2022; 78:3717-3724. [PMID: 35622946 DOI: 10.1002/ps.7015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 04/22/2022] [Revised: 05/24/2022] [Accepted: 05/27/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Emamectin benzoate (EMB), a frequently used biopesticide, is poorly soluble in water, making it difficult to wet the leaf surface, is prone to degrade in sunlight and readily loses its bioactivity. Traditional methods such as organic solvent application, pH adjustment and addition of photoprotectants either increase the economic and environmental costs or barely achieve the desired goal. We hypothesized that nanotechnology could improve the solubility, foliar affinity, photostability and bioactivity of EMB. This research set out to prepare a nano-EMB solid powder (nano-EMB-SP) and test this hypothesis. RESULTS Nano-EMB-SP was prepared using a self-emulsifying method combined with carrier solidification. The mean particle size and Polydispersity index (PDI) of nano-EMB-SP were 14.64 nm and 0.24, respectively. A scanning electron microscopy image showed that EMB nanoparticles were mainly spherical or ellipsoidal in shape. Without organic solvent, the aqueous solubility of EMB in nano-EMB-SP was 4500 mg L-1 , at least 14-fold that of the EMB soluble granule (EMB-SG), which is solubilized by pH adjustment. Excellent foliar affinity of EMB was achieved by nano-EMB-SP, which completely wet and penetrated the superhydrophobic surface of cabbage (Brassica oleracea L.) leaf. Without photoprotectants, up to 82% of EMB content can be protected from ultraviolet (UV) damage in nano-EMB-SP. The combined effects of excellent photostability and foliar affinity of nano-EMB-SP led to the bioactivity of EMB being almost unchanged before and after UV radiation. CONCLUSION Nano-EMB-SP is an eco-friendly and efficient way to improve the solubility, foliar affinity, photostability and bioactivity of EMB. This research provides a good approach to improving the efficacy of poorly soluble and UV-sensitive pesticides. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Fei Gao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Xingye Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Bohao Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Chunxin Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
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Zhan S, Jiang J, Zeng Z, Wang Y, Cui H. DNA-templated coinage metal nanostructures and their applications in bioanalysis and biomedicine. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214381] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Liu L, Han M, Qie R, Li Q, Zhang X, Zhang J, Zhan S, Zhang L, Xu Z, Zhang C, Hong F. A dose-response meta-analysis to evaluate the relationship between high-density lipoprotein cholesterol and all-cause and cardiovascular disease mortality. J Endocrinol Invest 2022; 45:551-562. [PMID: 34676492 DOI: 10.1007/s40618-021-01690-6] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Accepted: 10/07/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE Previous studies have not fully described the relationship between high-density lipoprotein cholesterol (HDL-C) and death risks from all cause and cardiovascular disease (CVD). This study quantitatively evaluates HDL-C-mortality associations. METHODS Embase and PubMed databases were searched for relevant articles published up to 1 June 2019. Random-effects models were used to pool relative risks (RRs) and 95% confidence intervals (CIs). We used restricted cubic splines to model the dose-response association. RESULTS We identified 32 prospective cohort studies including 369,904 participants and 33,473 total deaths (9426 CVD deaths). Compared to the lowest HDL-C levels, all cause and CVD mortality risks were reduced by 18% (RR 0.82; 95% CI, 0.73-0.93) and 36% (0.64, 0.46-0.89), respectively, for the highest HDL-C levels. All cause and CVD mortality risks were reduced by 15% (0.85, 0.79-0.92) and 23% (0.77, 0.69-0.87), respectively, with each 1 mmol/L increment of HDL-C. We found evidence of nonlinear and negative dose-response associations of HDL-C with all cause and CVD mortality (Pnonlinearity < 0.001), and the lowest death risks from all cause and CVD were observed at approximately 1.34 and 1.55 mmol/L, respectively. CONCLUSION HDL-C is inversely associated with all cause and CVD mortality risks under approximately 2.05 and 2.33 mmol/L, respectively. Optimal doses require investigation via clinical practice or high-quality research.
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Affiliation(s)
- L Liu
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
| | - M Han
- College of Public Health, Zhengzhou University, Zhengzhou, 450000, People's Republic of China
| | - R Qie
- College of Public Health, Zhengzhou University, Zhengzhou, 450000, People's Republic of China
| | - Q Li
- College of Public Health, Zhengzhou University, Zhengzhou, 450000, People's Republic of China
| | - X Zhang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
- Center for Diseases Control and Prevention of Yunyan District, Guiyang, 550004, People's Republic of China
| | - J Zhang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
- Guiyang Center for Diseases Control and Prevention, Guiyang, 550001, People's Republic of China
| | - S Zhan
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
- Guizhou Provincial Hospital of Maternal and Child Health Care, Guiyang, 550004, People's Republic of China
| | - L Zhang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
| | - Z Xu
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
| | - C Zhang
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China
| | - F Hong
- School of Public Health, the Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Dongqing Road, Guian New Area, Guiyang, 550025, Guizhou, People's Republic of China.
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An C, Sun C, Li N, Huang B, Jiang J, Shen Y, Wang C, Zhao X, Cui B, Wang C, Li X, Zhan S, Gao F, Zeng Z, Cui H, Wang Y. Nanomaterials and nanotechnology for the delivery of agrochemicals: strategies towards sustainable agriculture. J Nanobiotechnology 2022; 20:11. [PMID: 34983545 PMCID: PMC8725417 DOI: 10.1186/s12951-021-01214-7] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/16/2021] [Indexed: 12/27/2022] Open
Abstract
Nanomaterials (NMs) have received considerable attention in the field of agrochemicals due to their special properties, such as small particle size, surface structure, solubility and chemical composition. The application of NMs and nanotechnology in agrochemicals dramatically overcomes the defects of conventional agrochemicals, including low bioavailability, easy photolysis, and organic solvent pollution, etc. In this review, we describe advances in the application of NMs in chemical pesticides and fertilizers, which are the two earliest and most researched areas of NMs in agrochemicals. Besides, this article concerns with the new applications of NMs in other agrochemicals, such as bio-pesticides, nucleic acid pesticides, plant growth regulators (PGRs), and pheromone. We also discuss challenges and the industrialization trend of NMs in the field of agrochemicals. Constructing nano-agrochemical delivery system via NMs and nanotechnology facilitates the improvement of the stability and dispersion of active ingredients, promotes the precise delivery of agrochemicals, reduces residual pollution and decreases labor cost in different application scenarios, which is potential to maintain the sustainability of agricultural systems and improve food security by increasing the efficacy of agricultural inputs. ![]()
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Affiliation(s)
- Changcheng An
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Ningjun Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Bingna Huang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Jiajun Jiang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Chunxin Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Xingye Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Fei Gao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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Li N, Sun C, Jiang J, Wang A, Wang C, Shen Y, Huang B, An C, Cui B, Zhao X, Wang C, Gao F, Zhan S, Guo L, Zeng Z, Zhang L, Cui H, Wang Y. Advances in Controlled-Release Pesticide Formulations with Improved Efficacy and Targetability. J Agric Food Chem 2021; 69:12579-12597. [PMID: 34672558 DOI: 10.1021/acs.jafc.0c05431] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Pesticides are commonly used in modern agriculture and are important for global food security. However, postapplication losses due to degradation, photolysis, evaporation, leaching, surface runoff, and other processes may substantially reduce their efficacy. Controlled-release formulations can achieve the permeation-regulated transfer of an active ingredient from a reservoir to a target surface. Thus, they can maintain an active ingredient at a predetermined concentration for a specified period. This can reduce degradation and dissipation and other losses and has the potential to improve efficacy. Recent developments in controlled-release technology have adapted the concepts of intelligence and precision from the pharmaceutical industry. In this review, we present recent advances in the development of controlled-release formulations and discuss details of the preparation methods, material improvements, and application technologies.
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Affiliation(s)
- Ningjun Li
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Changjiao Sun
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Jiajun Jiang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Anqi Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chong Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yue Shen
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Bingna Huang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Changcheng An
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Bo Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Xiang Zhao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Chunxin Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Fei Gao
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Shenshan Zhan
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Liang Guo
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhanghua Zeng
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Liang Zhang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Haixin Cui
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Yan Wang
- Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Zhai Y, Wang H, Zhan S, Wu H. [Efficacy of intravenous thrombolysis for acute severe cerebral infarction and risk factors of poor prognosis: a randomized controlled trial in 152 cases]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:1426-1430. [PMID: 34658360 DOI: 10.12122/j.issn.1673-4254.2021.09.20] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To investigate the clinical efficacy and safety of intravenous thrombolysis in patients with acute severe cerebral infarction and analyze the risk factors of poor prognosis after thrombolysis. METHODS This randomized controlled trial was conducted among 152 patients with acute severe cerebral infarction, with the onset time all within 4.5 h. The patients were randomized into control group (76 cases) and observation group (76 cases) and received treatment with routine therapy (antiplatelet aggregation, statins, neuroprotection and drugs that stimulate blood flow) and intravenous thrombolytic therapy with alteplase in addition to the routine therapy, respectively. The NIHSS scores were recorded at 24 h, 1 week and 1 month after the treatment. The mRS scores at 3 months and the incidence of symptomatic intracranial hemorrhage at one week after the treatment were compared between the two groups. According to mRS scores at 3 months, the patients in the observation group were divided into good prognosis group (30 patients) and poor prognosis group (46 patients), and the risk factors for poor prognosis were analyzed using univariate and multivariate Logistic regression analysis. RESULTS At 24 h, 1 week and 1 month after the treatment, the reduction of NIHSS scores was more significant in the observation group than in the control group (F=24.684, P < 0.001). At 3 months after the treatment, the mRS scores were significantly lower (t=4.396, P < 0.001) and the good prognosis rate was significantly higher (χ2=13.636, P < 0.001) in the observation group than those of the control group. Symptomatic intracranial hemorrhage occurred in 4 cases in the observation group and in 2 cases in the control group within 1 week after the treatment (χ2=0.694, P=0.405). The time from onset to thrombolysis (OR=0.173, P=0.035), prethrombolytic systolic pressure (OR=0.869, P=0.019) and baseline NIHSS score (OR=0.466, P=0.011) were identified as independent risk factors for poor prognosis after intravenous thrombolysis. CONCLUSION Intravenous thrombolysis is effective and safe for patients with acute severe cerebral infarction, and the time from onset to thrombolysis, prethrombolytic systolic pressure and baseline NIHSS score are independent risk factors for a poor prognosis after intravenous thrombolysis.
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Affiliation(s)
- Y Zhai
- Department of Internal Medicine, Hospital of Shaanxi Normal University, Xi'an 710062, China
| | - H Wang
- Department of Neurology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - S Zhan
- Department of Neurology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
| | - H Wu
- Department of Neurology, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710004, China
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Sun Y, Gao L, Xia H, Yang Z, Deng S, Yang J, Zhao Y, Wang L, Feng J, Huang F, Huan S, Zhan S. Accuracy of molecular diagnostic tests for drug-resistant tuberculosis detection in China: a systematic review. Int J Tuberc Lung Dis 2020; 23:931-942. [PMID: 31533884 DOI: 10.5588/ijtld.18.0550] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE: To evaluate the accuracy of molecular diagnostics for the detection of drug-resistant tuberculosis (TB) in Chinese patients.METHOD: Seven databases were searched for eligible studies that evaluated the accuracy of molecular diagnostics against drug susceptibility testing (DST) for detecting drug resistance. A bivariate random-effects meta-analysis was conducted to pool sensitivity and specificity by the index test and drug resistance type.RESULTS: A total of 159 studies were included. Compared with DST (reference standard), Xpert® could diagnose rifampicin (RMP) resistant TB accurately, with a pooled sensitivity and pooled specificity of 92% (95%CI 90-94) and 98% (95%CI 97-98), respectively. Line-probe assays (LPAs) also performed well for RMP resistance, with a pooled sensitivity of 91% (95%CI 88-93) and pooled specificity of 98% (95%CI 96-99), but not for isoniazid (INH) or second-line drugs due to lower sensitivity (<80%). The pooled sensitivity of GeneChip® microarrays for RMP, INH and multidrug resistance was 89% (95%CI 86-91), 79% (95%CI 75-82) and 79% (95%CI 73-84), respectively, and the specificities were all >97%. Similarly, the MeltPro® TB/STR assay had better sensitivity and specificity for first-line drugs, varying from 87% to 89% and 97% to 98%, respectively, than for second-line drugs.CONCLUSION: The Xpert assay, LPA, GeneChip assay, and MeltPro assay are credible methods with high accuracy for RMP resistance detection, but they may not be appropriate for other anti-tuberculosis drugs due to low sensitivity.
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Affiliation(s)
- Y Sun
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
| | - L Gao
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
| | - H Xia
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Z Yang
- Primary Care Unit, University of Cambridge, Cambridge, UK
| | - S Deng
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
| | - J Yang
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
| | - Y Zhao
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - L Wang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - J Feng
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
| | - F Huang
- National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - S Huan
- Bill and Melinda Gates Foundation, Beijing Office, Beijing, China
| | - S Zhan
- Department of Epidemiology and Biostatistics, Peking University School of Public Health, Beijing
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Huang Z, Li N, Liu J, Hou Y, Wang L, Zhan S, Wu L, Wang Y. Nocturnal heart rate variability as a biomarker for autonomic nervous system dysfunction in fatal familial insomnia. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.447] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Li N, Yuan Y, Ding Y, Huang Z, Zhai Y, Li X, Wang Y, Zhan S. Psychiatric symptoms in adolescents with narcolepsy. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.1230] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Liu C, Xu Z, Han T, Huang Z, Zhan S, Xu J, Wang Y. Increased gray matter density and functional connectivity of the pons associated with restless legs syndrome. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.639] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Liu Y, Wu F, Wu Y, Deng Y, Xiao Y, Yang X, Zhang S, Huang Z, Chen Y, Han Y, Wang J, Huang X, Tan D, Wang J, Zhan S. P6290Enhanced IL-6/pSTAT3/fibroblast signaling pathway contributes to spontaneous postoperative atrial fibrillation in a novel simulated cardiac surgery mouse model. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0888] [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: 11/15/2022] Open
Abstract
Abstract
Background
Cumulative evidences have shown that IL-6 in atrium might play an important role in the pathogenesis of postoperative AF (POAF) via activation of atrial fibrosis in patients undergoing CABG. However, whether atria produces IL-6 after the stimulation of CABG and its causal relationship with spontaneous POAF (sPOAF) and its specific pathways is still unclear.
Purpose
To test the hypothesis that atrium will produce IL-6 after CABG and causes sustained sPOAF (ssPOAF) through activating pSTAT3-mediated fibroblast proliferation.
Methods
To determine the causal relationship between IL-6 and sPOAF, IL-6−/− and wild type (WT) mice were both divided into three groups (10 mice/group): CABG group (NAI, mimic CABG), anti-inflammatory group (AI, mimic CABG with pericardial administration of methylprednisolone for 3 days via chest tube), and control group (anesthesia only). Mice were monitored for ssPOAF for 7 days using implanted telemetry device. Another two sets of mice, using the same models mentioned above, were euthanatized at 48th hours postoperatively. The atria of one set animals were excised and separated into pericardium (PC), pulmonary vein (PV), left atrium (LA), and right atrium (RA) and cultured for 4 hours. IL-6 levels in the supernatant were measured at 10 min and 4 hours of culture using ELISA test. The region producing the largest amount of IL-6 in the other set of animals was harvested for analyzing expressions of IL-6, pSTAT3/STAT3, connexin 43 and 40, fibroblast deposition, and collagen I and III. Path analysis was performed to determine the causal relationship of CABG induced IL-6 release, pSTAT3/fibroblast signaling, and the onset of ssPOAF.
Results
40% NAI-WT mice developed ssPOAF (Figure 1A) which was completely protected in IL-6−/− and AI groups. IL-6 was produced by all 4 atrial regions at 4hrs after CABG stimulation with the LA producing the highest amount. Western blotting (Figure 1B), RT-CPR, Masson staining, and immunofluorescence all showed a significantly upregulation of IL-6, pSTAT3/STAT3, fibroblasts, collagen I and III, and downregulation of Cx40 an 43 in NAI-WT mice, but not in IL-6−/− and AI mice. IL-6 was colocalized with vimentin to a large extent in cytoplasm (Figure 1C). IL-6 had strong positive correlation with pSTAT3/STAT3, collagen I and III (all r>0.700, P<0.001), moderate and weak negative correlation with Cx40 and 43 (r=−0.505, P<0.001; r=−0.307, P=0.048, respectively). Path analysis (Figure 1D) revealed that every 1 unit increase in IL-6 upregulated a 0.589 unit increase in ssPOAF, which was mediated by pSTAT3/collagen indirectly and collagen I/ collagen III directly.
Conclusion
Our study, for the first time, to the best of our knowledge, established a novel pathophysiological role of IL-6/pSTAT3/fibroblast signaling in the pathogenesis of ssPOAF and demonstrated that inhibition of atrial IL-6 might be a potential novel sPOAF prevention strategy.
Acknowledgement/Funding
The National Natural Science Foundation (No.81170170)
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Affiliation(s)
- Y Liu
- Capital Medical University School of Nursing, Beijing, China
| | - F Wu
- Capital Medical University School of Nursing, Beijing, China
| | - Y Wu
- Capital Medical University School of Nursing, Beijing, China
| | - Y Deng
- Capital Medical University School of Nursing, Beijing, China
| | - Y Xiao
- Capital Medical University School of Nursing, Beijing, China
| | - X Yang
- Capital Medical University School of Nursing, Beijing, China
| | - S Zhang
- Capital Medical University School of Nursing, Beijing, China
| | - Z Huang
- Capital Medical University School of Nursing, Beijing, China
| | - Y Chen
- Capital Medical University School of Nursing, Beijing, China
| | - Y Han
- Capital Medical University School of Nursing, Beijing, China
| | - J Wang
- Capital Medical University School of Nursing, Beijing, China
| | - X Huang
- Capital Medical University School of Nursing, Beijing, China
| | - D Tan
- Capital Medical University School of Nursing, Beijing, China
| | - J Wang
- Capital Medical University School of Nursing, Beijing, China
| | - S Zhan
- Capital Medical University School of Nursing, Beijing, China
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Vailati-Riboni M, Bucktrout RE, Zhan S, Geiger A, McCann JC, Akers RM, Loor JJ. Higher plane of nutrition pre-weaning enhances Holstein calf mammary gland development through alterations in the parenchyma and fat pad transcriptome. BMC Genomics 2018; 19:900. [PMID: 30537932 PMCID: PMC6290502 DOI: 10.1186/s12864-018-5303-8] [Citation(s) in RCA: 12] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2018] [Accepted: 11/23/2018] [Indexed: 12/21/2022] Open
Abstract
Background To reduce costs of rearing replacement heifers, researchers have focused on decreasing age at breeding and first calving. To increase returns upon initiation of lactation the focus has been on increasing mammary development prior to onset of first lactation. Enhanced plane of nutrition pre-weaning may benefit the entire replacement heifer operation by promoting mammary gland development and greater future production. Methods Twelve Holstein heifer calves (< 1 week old) were reared on 1 of 2 dietary treatments (n = 6/group) for 8 weeks: a control group fed a restricted milk replacer at 0.45 kg/d (R, 20% crude protein, 20% fat), or an accelerated group fed an enhanced milk replacer at 1.13 kg/d (EH, 28% crude protein, 25% fat). At weaning (8 weeks), calves were euthanized and sub-samples of mammary parenchyma (PAR) and mammary fat pad (MFP) were harvested upon removal from the body. Total RNA from both tissues was extracted and sequenced using the Illumina HiSeq2500 platform. The Dynamic Impact Approach (DIA) and Ingenuity Pathway Analysis (IPA) were used for pathway analysis and functions, gene networks, and cross-talk analyses of the two tissues. Results When comparing EH vs R 1561 genes (895 upregulated, 666 downregulated) and 970 genes (506 upregulated, 464 downregulated) were differentially expressed in PAR and MFP, respectively. DIA and IPA results highlight a greater proliferation and differentiation activity in both PAR and MFP, supported by an increased metabolic activity. When calves were fed EH, the PAR displayed transcriptional signs of greater overall organ development, with higher ductal growth and branching, together with a supportive blood vessel and nerve network. These activities were mediated by intracellular cascades, such as AKT, SHH, MAPK, and Wnt, probably activated by hormones, growth factors, and endogenous molecules. The analysis also revealed strong communication between MFP and PAR. Conclusion The transcriptomics and bioinformatics approach highlighted key mechanisms that mediate the mammary gland response to a higher plane of nutrition in the pre-weaning period. Electronic supplementary material The online version of this article (10.1186/s12864-018-5303-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- M Vailati-Riboni
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, 61801, USA
| | - R E Bucktrout
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, 61801, USA
| | - S Zhan
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, 61801, USA.,College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, Sichuan, People's Republic of China
| | - A Geiger
- Department of Dairy Science, Virginia Tech, Blacksburg, VA, 24061, USA
| | - J C McCann
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, 61801, USA
| | - R M Akers
- Department of Dairy Science, Virginia Tech, Blacksburg, VA, 24061, USA
| | - J J Loor
- Department of Animal Sciences and Division of Nutritional Sciences, University of Illinois, Urbana, 61801, USA.
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Ou X, Zhan S, Sun C, Cheng Y, Wang X, Liu B, Zhai T, Lou X, Xia F. Simultaneous detection of telomerase and miRNA with graphene oxide-based fluorescent aptasensor in living cells and tissue samples. Biosens Bioelectron 2018; 124-125:199-204. [PMID: 30388562 DOI: 10.1016/j.bios.2018.10.009] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Revised: 09/18/2018] [Accepted: 10/04/2018] [Indexed: 11/29/2022]
Abstract
Telomerase and microRNAs (miRNAs) as important biomarkers are closely related to cancers. Simultaneous detection of telomerase activity and miRNAs would be beneficial to improve the specificity and reliability. Here, we establish a telomerase and miRNA-21 (miR-21) simultaneous sensing platform with graphene oxide-based fluorescent aptasensors (GOFA) including graphene oxide (GO), template strand (TS) primer and fluorophore-labeled telomerase/miR-21 oligonucleotides. Owing to π-π stacking interaction, TS primer and telomerase/miR-21 probes would be loaded onto GO, resulting in fluorescence quenching. However, in the presence of the telomerase or miR-21, the double-stranded oligonucleotides would be away from the GO surface attribute to the hybridization between the extended TS primers and telomerase probe as well as miR-21 and miR-21 probe, leading to obvious fluorescence recovery. We found that GOFA could simultaneously detect telomerase activity and miR-21 with low background signal, high sensitivity and simplified operation. Moreover, GOFA could be used for accurately detecting telomerase activity and miRNA in living cells and cancer patient tissue sample. This sensing platform shows great potential in improving the accuracy in clinical diagnosis of cancer.
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Affiliation(s)
- Xiaowen Ou
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, National Engineering Research Center for Nanomedicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Shenshan Zhan
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, National Engineering Research Center for Nanomedicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Chunli Sun
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, National Engineering Research Center for Nanomedicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Yong Cheng
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, National Engineering Research Center for Nanomedicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Xudong Wang
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, National Engineering Research Center for Nanomedicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Bifeng Liu
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, National Engineering Research Center for Nanomedicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Tianyou Zhai
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, National Engineering Research Center for Nanomedicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Xiaoding Lou
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, PR China
| | - Fan Xia
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, National Engineering Research Center for Nanomedicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China; Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences, Wuhan 430074, PR China
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Liu YL, Chin C, Catanese B, Lee SM, Zhan S, Kalinsky K, Connolly EP. Concurrent use of capecitabine with radiation therapy and survival in breast cancer (BC) after neoadjuvant chemotherapy. Clin Transl Oncol 2018; 20:1280-1288. [PMID: 29594944 DOI: 10.1007/s12094-018-1859-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 03/08/2018] [Indexed: 10/17/2022]
Abstract
PURPOSE Capecitabine has been studied as a radiosensitizer, and our study seeks to examine the association of concurrent capecitabine/radiation therapy (RT) on event-free- (EFS) and overall survival (OS) in women with breast cancer (BC) with residual disease after neoadjuvant chemotherapy (NAC). METHODS/PATIENTS In a retrospective study of women with BC who received adriamycin/taxane-based NAC from 2004-2016, we identified 21 women administered concurrent capecitabine/RT. To assess differences in survival, we selected a clinical control cohort (n = 57) based on criteria used to select patients for capecitabine/RT. We also created a matched cohort (2:1), matching on tumor subtype, pathological stage and age (< 50 or 50+ years). Differences in EFS, using STEEP criteria, and OS, using all-cause mortality, between those who received capecitabine/RT and controls were assessed. RESULTS Of the 21 women who received capecitabine/RT, median age was 52 years. The majority were pathologic stage III (n = 15) and hormone receptor-positive/HER2-negative BC (n = 20). In those receiving capecitabine/RT, there were 9 events, compared with 14 events in clinical and 10 events in matched controls. Capecitabine/RT was associated with worse OS in clinical (HR 3.83 95% CI 1.12-13.11, p = 0.03) and matched controls (HR 3.71 95% CI 1.04-13.18, p = 0.04), after adjusting for clinical size, pathological stage and lymphovascular invasion. Capecitabine/RT was also associated with a trend towards worse EFS in clinical (HR 2.41 95% CI 0.86-6.74, p = 0.09) and matched controls (HR 2.68 95% CI 0.91-7.90, p = 0.07) after adjustment. CONCLUSION Concurrent capecitabine/RT after NAC is associated with worse survival and should be carefully considered in BC.
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Affiliation(s)
- Y L Liu
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - C Chin
- Department of Radiation Oncology, New York Presbyterian Hospital, Columbia University Medical Center, New York, NY, USA
| | - B Catanese
- Department of Radiation Oncology, New York Presbyterian Hospital, Columbia University Medical Center, New York, NY, USA
| | - S M Lee
- Department of Biostatistics, Columbia University School of Medicine, New York, NY, USA
| | - S Zhan
- Department of Biostatistics, Columbia University School of Medicine, New York, NY, USA
| | - K Kalinsky
- Department of Medical Oncology, New York Presbyterian Hospital, Columbia University Medical Center, New York, NY, USA
| | - E P Connolly
- Department of Radiation Oncology, New York Presbyterian Hospital, Columbia University Medical Center, New York, NY, USA.
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D'Amico G, Rosi G, Zhan S, Cacciapuoti L, Fattori M, Tino GM. Canceling the Gravity Gradient Phase Shift in Atom Interferometry. Phys Rev Lett 2017; 119:253201. [PMID: 29303327 DOI: 10.1103/physrevlett.119.253201] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Indexed: 06/07/2023]
Abstract
Gravity gradients represent a major obstacle in high-precision measurements by atom interferometry. Controlling their effects to the required stability and accuracy imposes very stringent requirements on the relative positioning of freely falling atomic clouds, as in the case of precise tests of Einstein's equivalence principle. We demonstrate a new method to exactly compensate the effects introduced by gravity gradients in a Raman-pulse atom interferometer. By shifting the frequency of the Raman lasers during the central π pulse, it is possible to cancel the initial position- and velocity-dependent phase shift produced by gravity gradients. We apply this technique to simultaneous interferometers positioned along the vertical direction and demonstrate a new method for measuring local gravity gradients that does not require precise knowledge of the relative position between the atomic clouds. Based on this method, we also propose an improved scheme to determine the Newtonian gravitational constant G towards the 10 ppm relative uncertainty.
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Affiliation(s)
- G D'Amico
- Dipartimento di Fisica e Astronomia and LENS, Università di Firenze, INFN Sezione di Firenze, via Sansone 1, I-50019 Sesto Fiorentino (FI), Italy
| | - G Rosi
- Dipartimento di Fisica e Astronomia and LENS, Università di Firenze, INFN Sezione di Firenze, via Sansone 1, I-50019 Sesto Fiorentino (FI), Italy
| | - S Zhan
- Dipartimento di Fisica e Astronomia and LENS, Università di Firenze, INFN Sezione di Firenze, via Sansone 1, I-50019 Sesto Fiorentino (FI), Italy
| | - L Cacciapuoti
- European Space Agency, Keplerlaan 1, 2200 AG Noordwijk, Netherlands
| | - M Fattori
- Dipartimento di Fisica e Astronomia and LENS, Università di Firenze, INFN Sezione di Firenze, via Sansone 1, I-50019 Sesto Fiorentino (FI), Italy
| | - G M Tino
- Dipartimento di Fisica e Astronomia and LENS, Università di Firenze, INFN Sezione di Firenze, via Sansone 1, I-50019 Sesto Fiorentino (FI), Italy
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23
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Affiliation(s)
- Zi Long
- Faculty
of Materials Science and Chemistry, China University of Geosciences, Wuhan, Hubei 430074, P. R. China
| | - Shenshan Zhan
- School
of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
| | - Pengcheng Gao
- Faculty
of Materials Science and Chemistry, China University of Geosciences, Wuhan, Hubei 430074, P. R. China
| | - Yongqian Wang
- Faculty
of Materials Science and Chemistry, China University of Geosciences, Wuhan, Hubei 430074, P. R. China
| | - Xiaoding Lou
- Faculty
of Materials Science and Chemistry, China University of Geosciences, Wuhan, Hubei 430074, P. R. China
- School
of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
| | - Fan Xia
- Faculty
of Materials Science and Chemistry, China University of Geosciences, Wuhan, Hubei 430074, P. R. China
- School
of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, P. R. China
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24
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Yang X, Qi F, Yang W, Guo C, Zhan S, Lu J. 0166 MOVEMENT IMPAIRMENT AND SLEEP DISORDER CAUSED BY BILATERAL GLOBUS PALLIDUS EXTERNUS (GPE) INJECTION OF COPPER IN RATS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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25
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Guo C, Yang W, Zhan S, Yang X, Chen M, Fuller P, Lu J. 0120 SUPRA-SPINAL NEURAL CIRCUITRY REGULATING REST LEGS SYNDROME (RLS). Sleep 2017. [DOI: 10.1093/sleepj/zsx050.119] [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: 11/13/2022] Open
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26
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Liu XJ, Xie L, Liu N, Zhan S, Zhou XG, Wang Q. RNA interference unveils the importance of Pseudotrichonympha grassii cellobiohydrolase, a protozoan exoglucanase, in termite cellulose degradation. Insect Mol Biol 2017; 26:233-242. [PMID: 27991709 DOI: 10.1111/imb.12287] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Based on prior work, a cellulase from glycosyl hydrolase family 7 (GHF7) was identified and found to be expressed at a high level in Coptotermes formosanus. To determine the function of GHF7 family members in vivo, we used RNA interference (RNAi) to functionally analyse the exoglucanase gene Pseudotrichonympha grassii cellobiohydrolase gene (PgCBH), which was highly expressed in Pseudotrichonympha grassii, a flagellate found in the hindgut of C. formosanus. In this study, the expression level of PgCBH was down-regulated by RNAi, causing the death of P. grassii, but no effect was observed for other flagellates found in C. formosanus. RNAi also resulted in significantly reduced exoglucanase activity, and no effect was observed for endoglucanase and β-glucosidase activities. This result demonstrated that the PgCBH gene plays a role in the protist lignocellulolytic process and is also important for host survival. PgCBH can be used as a target gene and has potential as a bioinsecticide for use against termites.
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Affiliation(s)
- X-J Liu
- Key Laboratory of Insect Developmental and Evolutionary Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Shanghai, China
| | - L Xie
- Key Laboratory of Insect Developmental and Evolutionary Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Shanghai, China
| | - N Liu
- Key Laboratory of Insect Developmental and Evolutionary Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Shanghai, China
| | - S Zhan
- Key Laboratory of Insect Developmental and Evolutionary Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - X-G Zhou
- Department of Entomology, University of Kentucky, KY, USA
| | - Q Wang
- Key Laboratory of Insect Developmental and Evolutionary Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
- Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
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27
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Zhang D, Zhang W, Ye J, Zhan S, Xia B, Lv J, Xu H, Du G, Wang L. A Label-Free Colorimetric Biosensor for 17β-Estradiol Detection Using Nanoparticles Assembled by Aptamer and Cationic Polymer. Aust J Chem 2016. [DOI: 10.1071/ch14735] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Concern is mounting regarding the human health and environment effects of 17β-estradiol (E2), a natural oestrogen excreted by human beings and animals. In this paper, a sensitive and selective biosensor for the detection of E2 using gold nanoparticles (AuNPs), label-free E2-specific aptamer, and poly(diallyldimethylammonium chloride) (PDDA) was developed. In the absence of E2, PDDA can electrostatically interact with E2-specific aptamer, and the charge responsible for inducing AuNPs aggregation was destroyed. However, the introduction of E2 can specifically interact with the aptamer to form E2–aptamer complex so that PDDA can aggregate AuNPs and cause a remarkable change in colour from wine red to blue, which enables colorimetric detection of E2 with selectivity and a detection limit of 1.57 nM.
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28
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Zhan X, Hu G, Wagberg T, Zhan S, Xu H, Zhou P. Electrochemical aptasensor for tetracycline using a screen-printed carbon electrode modified with an alginate film containing reduced graphene oxide and magnetite (Fe3O4) nanoparticles. Mikrochim Acta 2015. [DOI: 10.1007/s00604-015-1718-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [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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29
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Wu L, Zhan S, Wang X, Lu H, Ye J, Jia J. Clinical and polysomnography characteristics of five Chinese patients with fatal familial insomnia. Sleep Med 2015. [DOI: 10.1016/j.sleep.2015.02.132] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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30
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Zhan S, Xu H, Zhang W, Zhan X, Wu Y, Wang L, Zhou P. Sensitive fluorescent assay for copper (II) determination in aqueous solution using copper-specific ssDNA and Sybr Green I. Talanta 2015; 142:176-82. [DOI: 10.1016/j.talanta.2015.04.037] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 04/04/2015] [Accepted: 04/12/2015] [Indexed: 12/18/2022]
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31
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Wu Y, Zhan S, Wang L, Zhou P. Selection of a DNA aptamer for cadmium detection based on cationic polymer mediated aggregation of gold nanoparticles. Analyst 2015; 139:1550-61. [PMID: 24496116 DOI: 10.1039/c3an02117c] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The demand for selection of aptamers against various small chemical molecules has substantially increased in recent years. To incubate and separate target-specific aptamers, the conventional SELEX procedures generally need to immobilize target molecules on a matrix, which may be impotent to screen aptamers toward small molecules without enough sites for immobilization. Herein we chose Cd(II) as a model of a small molecule with less sites, and proposed a novel SELEX strategy of immobilizing ssDNA libraries rather than target molecules on a matrix, for selection of aptamers with high affinity to Cd(II). After eleven rounds of positive and negative selection, twelve T and G-rich of nonrepeating ssDNA sequences were identified, of which the Cd-4 aptamer displayed the highest binding affinity to Cd(II). The secondary structures of these sequences revealed that a stem-loop structure folded by the domain of their 30-random sequence is critical for aptamers to bind targets. Then the interaction between the selected Cd-4 aptamer and Cd(II) was confirmed by CD analysis, and the binding specificity toward other competitive metal ions was also investigated. The dissociation constant (Kd) of Cd-4 aptamer was determined as 34.5 nM for Cd(II). Moreover, the Cd-4 aptamer was considered a recognition element for the colorimetric detection of Cd(II) based on the aggregation of AuNPs by cationic polymer. Through spectroscopic quantitative analysis, Cd(II) in aqueous solution can be detected as low as 4.6 nM. The selected Cd-4 aptamer will offer a new substitute for the detection of Cd(II) or other applications like recovery of cadmium from polluted samples.
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Affiliation(s)
- Yuangen Wu
- Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.
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32
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Zhan S, Xu H, Zhang D, Xia B, Zhan X, Wang L, Lv J, Zhou P. Fluorescent detection of Hg2+ and Pb2+ using GeneFinder™ and an integrated functional nucleic acid. Biosens Bioelectron 2015; 72:95-9. [PMID: 25966463 DOI: 10.1016/j.bios.2015.04.021] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [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: 02/06/2015] [Revised: 04/03/2015] [Accepted: 04/10/2015] [Indexed: 12/25/2022]
Abstract
This paper reports a simple fluorescent assay for the determination of Hg(2+) and Pb(2+) by using a DNA intercalator GeneFinder™ (GF) and an integrated functional nucleic acid (FNA). In the absence of Hg(2+) and Pb(2+), GF intercalated with the FNA and released moderate strong fluorescence. While in the presence of Hg(2+) or Pb(2+), the FNA would be induced to form T-Hg(2+)-T or G-quadruplex structure, interacted with which the GF would exhibit extremely strong or very weak fluorescence. By monitoring the fluorescence changes upon addition of these two ions, the Hg(2+) and Pb(2+) could be selectively detected as low as 3.23 ppb and 2.62 ppb. As the main advantage of this assay is simplicity and the feasibility was demonstrated by detecting Hg(2+) and Pb(2+) in spiked water samples, this assay holds great potential for the development of a cost effective and useful tool for environmental monitoring.
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Affiliation(s)
- Shenshan Zhan
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Hanchu Xu
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Dongwei Zhang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, PR China
| | - Bing Xia
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, PR China
| | - Xuejia Zhan
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Lumei Wang
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Jing Lv
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China
| | - Pei Zhou
- School of Environmental Science and Engineering; Key Laboratory of Urban Agriculture (South), Ministry of Agriculture; School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, PR China.
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33
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Qu Z, Song J, Zhan S, Ma X. A Novel Broadly Applicable Risk Score for Predicting Mortality of Patients with Circulatory System Diseases within Hospitalization Duration. Value Health 2014; 17:A727. [PMID: 27202590 DOI: 10.1016/j.jval.2014.08.060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Z Qu
- Peking University, Beijing, China
| | - J Song
- Peking University, Beijing, China
| | - S Zhan
- Peking University, Beijing, Beijing, China
| | - X Ma
- Peking University, Beijing, China
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34
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Affiliation(s)
- J Yan
- Creativ-Ceutical, London, UK
| | - E Clay
- Creativ-Ceutical, Paris, France
| | | | - S Zhai
- The Third School of Clinical Medicine, Peking University, Beijing, China
| | - S Zhan
- Peking University, Beijing, Beijing, China
| | - M Toumi
- University of Marseille, Marseille, France
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35
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Sun F, Wu S, Chai S, Yang Z, Yu K, Zhan S. Impact of Glp-1RA on Heart Rate, Blood Pressure and Hypertension Among Type 2 Diabetes: A Systematic Review and Network Meta-Analysis. Value Health 2014; 17:A719-A720. [PMID: 27202544 DOI: 10.1016/j.jval.2014.08.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- F Sun
- Peking University Health Science Center, Beijing, China
| | - S Wu
- Peking University Health Science Center, Beijing, China
| | - S Chai
- Capital Medical University, Beijing, Beijing, China
| | - Z Yang
- Peking University Health Science Center, Beijing, China
| | - K Yu
- Tianjin Fifth Central Hospital, Tianjin, China
| | - S Zhan
- Peking University Health Science Center, Beijing, China
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36
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Wang J, Chen R, Tang S, Lv X, Wu S, Zhang Y, Yang Z, Xia Y, Chen D, Zhan S. Interleukin-4 and interleukin-10 polymorphisms and antituberculosis drug-induced hepatotoxicity in Chinese population. J Clin Pharm Ther 2014; 40:186-91. [DOI: 10.1111/jcpt.12223] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 09/15/2014] [Indexed: 01/05/2023]
Affiliation(s)
- J. Wang
- Department of Epidemiology and Biostatistics; School of Public Health; Peking University Health Science Centre; Beijing China
| | - R. Chen
- Department of Epidemiology and Biostatistics; School of Public Health; Peking University Health Science Centre; Beijing China
| | - S. Tang
- Department of Epidemiology and Biostatistics; School of Public Health; Nanjing Medical University; Nanjing China
| | - X. Lv
- Clinical Research Division; Peking University Institute of Mental Health; Key Laboratory for Mental Health; Ministry of Health; Beijing China
| | - S. Wu
- Department of Epidemiology and Biostatistics; School of Public Health; Peking University Health Science Centre; Beijing China
| | - Y. Zhang
- Department of Clinical Epidemiology and Biostatistics; McMaster University; Hamilton ON Canada
| | - Z. Yang
- Department of Epidemiology and Biostatistics; School of Public Health; Peking University Health Science Centre; Beijing China
| | - Y. Xia
- Center for Tuberculosis Control and Prevention; Chinese Center for Disease Control and Prevention; Beijing China
| | - D. Chen
- Department of Epidemiology and Biostatistics; School of Public Health; Peking University Health Science Centre; Beijing China
| | - S. Zhan
- Department of Epidemiology and Biostatistics; School of Public Health; Peking University Health Science Centre; Beijing China
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37
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Huang Z, Li Y, Zhan S, Li N, Ding Y, Hou Y, Wang L, Wang Y. P1060: Suppressing cortical hyperexcitability of right parietal cortex by repetitive transcranial magnetic stimulation (rTMS) relieved the anxiety symptom of patients with generalized anxiety disorder. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50913-3] [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: 10/25/2022]
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38
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Luo Y, He L, Zhan S, Wu Y, Liu L, Zhi W, Zhou P. Ultrasensitive resonance scattering (RS) spectral detection for trace tetracycline in milk using aptamer-coated nanogold (ACNG) as a catalyst. J Agric Food Chem 2014; 62:1032-1037. [PMID: 24400926 DOI: 10.1021/jf403566e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This paper reports an ultrasensitive resonance scattering (RS) method to detect tetracycline (TET) in milk based on the competition of aptamers between nanogold and TET, aggregation of naked nanogold, nanocatalytic Fehling reaction, and RS signals of catalytic product Cu₂O cubic. The detection principle was confirmed by the nanoparticle size analyzer (NANOS), scanning electron microscopy (SEM), and X-ray diffraction (XRD). The variations of RS intensity had good linear correlation with TET concentrations, and the limit of detection was calculated as 11.6 nM. The proposed method was successfully applied for analysis of TET in milk, with total recoveries ranging from 105 to 109%.
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Affiliation(s)
- Yanfang Luo
- School of Agriculture and Biology, ‡Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Bor S. Luh Food Safety Research Center, and §School of Environmental Science and Engineering, Shanghai Jiao Tong University , Shanghai 200240, People's Republic of China
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39
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Zhan S, Wu Y, Luo Y, Liu L, He L, Xing H, Zhou P. Label-free fluorescent sensor for lead ion detection based on lead(II)-stabilized G-quadruplex formation. Anal Biochem 2014; 462:19-25. [PMID: 24486320 DOI: 10.1016/j.ab.2014.01.010] [Citation(s) in RCA: 33] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 01/15/2014] [Accepted: 01/20/2014] [Indexed: 11/18/2022]
Abstract
A label-free fluorescent DNA sensor for the detection of lead ions (Pb(2+)) based on lead(II)-stabilized G-quadruplex formation is proposed in this article. A guanine (G)-rich oligonucleotide, T30695, was used as a recognition probe, and a DNA intercalator, SYBR Green I (SG), was used as a signal reporter. In the absence of Pb(2+), the SG intercalated with the single-stranded random-coil T30695 and emitted strong fluorescence. While in the presence of Pb(2+), the random-coil T30695 would fold into a G-quadruplex structure and the SG could barely show weak fluorescence, and the fluorescence intensity was inversely proportional to the involving amount of Pb(2+). Based on this, a selective lead ion sensor with a limit of detection of 3.79 ppb (parts per billion) and a detection range from 0 to 600 ppb was constructed. Because detection for real samples was also demonstrated to be reliable, this simple, low-cost, sensitive, and selective sensor holds good potential for Pb(2+) detection in real environmental samples.
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Affiliation(s)
- Shenshan Zhan
- School of Environmental Science and Engineering, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Yuangen Wu
- School of Environmental Science and Engineering, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Yanfang Luo
- School of Environmental Science and Engineering, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Le Liu
- School of Environmental Science and Engineering, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Lan He
- School of Environmental Science and Engineering, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Haibo Xing
- School of Environmental Science and Engineering, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - Pei Zhou
- School of Environmental Science and Engineering, Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, School of Agriculture and Biology, and Bor S. Luh Food Safety Research Center, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
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40
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Wu S, Sun F, Zhang Y, Yang Z, Hong T, Chen Y, Zhan S. The cardiovascular effects of glucagon-like peptide-1 receptor agonists: a trial sequential analysis of randomized controlled trials. J Clin Pharm Ther 2013; 39:7-13. [PMID: 24127768 DOI: 10.1111/jcpt.12102] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [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: 03/06/2013] [Accepted: 09/11/2013] [Indexed: 11/28/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Glucagon-like peptide-1 (GLP-1) receptor agonists are a new class of antidiabetic drugs. Their wider use for the treatment of patients with type 2 diabetes mellitus has led to concerns about its cardiovascular effects. However, the robustness of data leading to those concerns is unclear. The purpose of this study is to systematically assess the robustness of the available evidence on the adverse cardiovascular effects of GLP-1 receptor agonists in patients with type 2 diabetes. METHODS The Cochrane library, MEDLINE, EMBASE and www.clinicaltrials.gov were searched from inception through to 25 January 2013. Randomized controlled trials (RCTs) were selected if they compared GLP-1 receptor agonists with placebo or other drugs with a duration ≥12 weeks. Mantel-Haenszel odds ratio (MH-OR) of cardiovascular events with 95% confidence interval (CI) was estimated using a random effects model. Trial sequential analysis based on required information size with an assumption of plausible reductions in relative risk in the low-bias trials, 5% risk of a type I error and 20% risk of a type II error was used to explore the robustness of available evidence. RESULTS Fifty-eight trials were included in the analysis (10 466 patients receiving GLP-1 receptor agonists and 7138 patients receiving comparators, respectively). Overall, the OR for cardiovascular events with GLP-1 receptor agonists was 0·52 (95% CI: 0·27-0·99) compared with placebo and 0·84 (95% CI: 0·52-1·36) with active controls. Trial sequential analyses showed that the actual accumulated sample size was only 11% (7445 of 65 212) and 13% (10 157 of 79 198) of the required information size for placebo-controlled trials and active-controlled trials, respectively. These results indicate that there is still insufficient evidence on cardiovascular events. WHAT IS NEW AND CONCLUSION GLP-1 receptor agonists do not seem to show any increased risk of cardiovascular events However, the available data from RCTs remain insufficient to confirm an absence of detrimental effect. More long-term trials and population-based studies are required to provide the necessary reassurance on the cardiovascular safety of GLP-1 receptor agonists.
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Affiliation(s)
- S Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Centre, Beijing, China
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41
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Xing H, Zhan S, Wu Y, He L, Zhou P. Sensitive colorimetric detection of melamine in milk with an aptamer-modified nanogold probe. RSC Adv 2013. [DOI: 10.1039/c3ra42138d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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42
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Wu Y, Wang F, Zhan S, Liu L, Luo Y, Zhou P. Regulation of hemin peroxidase catalytic activity by arsenic-binding aptamers for the colorimetric detection of arsenic(iii). RSC Adv 2013. [DOI: 10.1039/c3ra44346a] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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43
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Zhan S, Wu Y, Liu L, Xing H, He L, Zhan X, Luo Y, Zhou P. A simple fluorescent assay for lead(ii) detection based on lead(ii)-stabilized G-quadruplex formation. RSC Adv 2013. [DOI: 10.1039/c3ra42621a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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44
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Wang F, Wu Y, Zhan S, He L, Zhi W, Zhou X, Zhou P. A Simple and Sensitive Colorimetric Detection of Silver Ions Based on Cationic Polymer-Directed AuNPs Aggregation. Aust J Chem 2013. [DOI: 10.1071/ch12375] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This paper describes a simple and sensitive colorimetric sensor employing single-stranded DNA (ssDNA) ligand, cationic polymer, and gold nanoparticles (AuNPs) to detect silver ions. The positively charged polymer can electrostatically interact with ssDNA and destroy the charge balance leading to induction of AuNP aggregation. Silver ions (Ag+) can bind to cytosine (C)-rich nucleic acids to form the C-Ag+-C hair-pin structure, which can prevent its interaction with polymers. The resulting cationic polymer could aggregate AuNPs causing a remarkable change in colour. The concentration of Ag+ can be determined visually. This sensing platform exhibits high sensitivity and selectivity towards Ag+ versus other metal ions, with a detection limit of 48.6 nM. The assay did not require any labelling or modifying steps. This method is simple, effective, and convenient and can in principle be used to detect other metal ions or small molecules.
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Wu Y, Zhan S, Xing H, He L, Xu L, Zhou P. Nanoparticles assembled by aptamers and crystal violet for arsenic(III) detection in aqueous solution based on a resonance Rayleigh scattering spectral assay. Nanoscale 2012; 4:6841-6849. [PMID: 23034818 DOI: 10.1039/c2nr31418e] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Aptamer-assembled nanomaterials have captured much attention from the field of analytical chemistry in recent years. Although they have been regarded as a promising tool for heavy metal monitoring, report involving aptamer-based biosensors for arsenic detection are rare. Herein we developed a highly sensitive and selective aptamer biosensor for As(iii) detection based on a Resonance Rayleigh Scattering (RRS) spectral assay. Prior to As(iii) detection, we firstly assembled a variety of nanoparticles with different sizes via controlling the concentration of arsenic-binding aptamers in crystal violet (CV) solutions. The results of photon correlation spectroscopy (PCS) and scanning probe microscope (SPM) testified that the introduction of As(iii) had indeed changed the size of nanoparticles, which caused a great variation in the RRS intensity at 310 nm. In the presence of 100 ppb As(iii), a maximum decline in the ratio of RRS intensity was achieved for large nanoparticles assembled from 200 nM of aptamers and CV molecules, where the average size of nanoparticles had decreased from 273 nm to 168 nm. In the case of small nanoparticles, the maximum increase ratio of the RRS intensity was obtained when the concentration of aptamer was over 600 nM. Combined with an RRS spectral assay, an effective biosensor has been developed for As(iii) detection, using the above large and small nanoparticles as the target recognition element. The present biosensor has a detection limit as low as 0.2 ppb, a dynamic range from 0.1 ppb to 200 ppb, and high selectivity over other metal ions. Such an efficient biosensor will play an important role in environmental detection.
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Affiliation(s)
- Yuangen Wu
- Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai Jiao Tong University, Shanghai, 200240, China
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Dong Z, Watts R, Sun Y, Zhan S, Colburn N. Progressive elevation of ap-1 activity during preneoplastic-to-neoplastic progression as modeled in mouse jb6 cell variants. Int J Oncol 2012; 7:359-64. [PMID: 21552848 DOI: 10.3892/ijo.7.2.359] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The JB6 mouse epidermal cell system has been used extensively as an in vitro model for the study of tumor promotion and progression. The present study was directed to assessing the role of basal AP-1 activity in JB6 variants which represent preneoplastic to neoplastic progression and to addressing whether AP-1 activity is required for maintenance of the tumor phenotype. Constitutively higher AP-1 activity was found in tumorigenic JB6 RT101 cells than in later or earlier preneoplastic P+ or P- cells. Levels of c-jun mRNA and protein correlated with progression stage. Enhancement of AP-1 activity by TPA increased the formation of anchorage independent colonies by tumorigenic RT101 cells. Inhibition of AP-1 activity by retinoic acid or fluocinolone acetonide inhibited expression of tumor phenotype as measured by AI growth. These data together with our previous results suggest that in the JB6 model (i) basal levels of Jun and AP-1 appear to be important for preneoplastic-to-neoplastic progression; (ii) induced AP-1 appears to be required for further progression by tumor cells; (iii) constitutively elevated AP-I activity may be important for the expression of transformed phenotype; (iv) inhibition of AP-1 activity by RA or FA is not a general suppression of transcription but is gene-specific; and (v) even though both inhibition of AP-1 activity and activation of RARE-dependent or GRE-dependent gene transcription correlate with inhibition of AI growth in RT101 cells by RA or FA, transactivation of RARE or GRE might better correlate with the inhibition of AI growth than the inhibition of AP-1 activity in RT101 cells.
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Affiliation(s)
- Z Dong
- NCI,FREDERICK CANC RES & DEV CTR,SAIC,BIOL CARCINOGENESIS & DEV PROGRAM,FREDERICK,MD 21702. NCI,FREDERICK CANC RES & DEV CTR,VIRAL CARCINOGENESIS LAB,CELL BIOL SECT,FREDERICK,MD 21702
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Wu Y, Liu L, Zhan S, Wang F, Zhou P. Ultrasensitive aptamer biosensor for arsenic(III) detection in aqueous solution based on surfactant-induced aggregation of gold nanoparticles. Analyst 2012; 137:4171-8. [PMID: 22842645 DOI: 10.1039/c2an35711a] [Citation(s) in RCA: 101] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This paper reports the colorimetric and resonance scattering (RS)-based biosensor for the ultrasensitive detection of As(III) in aqueous solution via aggregating gold nanoparticles (AuNPs) by the special interactions between arsenic-binding aptamer, target and cationic surfactant. Aptamers and the cationic surfactant could assemble to form a supramolecule, which prevented AuNPs from aggregating due to the exhaustion of cationic surfactant. The introduction of As(III) specifically interacted with the arsenic-binding aptamer to form the aptamer-As(III) complex, so that the following cationic surfactant could aggregate AuNPs and cause the remarkable change in color and RS intensity. The results of circular dichroism (CD) and scanning probe microscope (SPM) testified to the formation of the supramolecule and aptamer-As(III) complex, and the observation of transmission electron microscope (TEM) further confirmed that the aggregation of AuNPs could be controlled by the interactions among the aptamer, As(III) and cationic surfactant. The variations of absorbance and RS intensity were exponentially related to the concentration of As(III) in the range from 1 to 1500 ppb, with the detection limit of 40 ppb for the naked eye, 0.6 ppb for colorimetric assay and 0.77 ppb for RS assay. Additionally, the speed of the present biosensor was rapid, and it also exhibited high selectivity over other metal ions with an excellent recovery for detection in real water samples, suggesting that the proposed biosensor will play an important role in environmental detection.
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Affiliation(s)
- Yuangen Wu
- Key Laboratory of Urban Agriculture, Ministry of Agriculture, Shanghai Jiao Tong University, China
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Wu Y, Zhan S, Wang F, He L, Zhi W, Zhou P. Cationic polymers and aptamers mediated aggregation of gold nanoparticles for the colorimetric detection of arsenic(III) in aqueous solution. Chem Commun (Camb) 2012; 48:4459-61. [PMID: 22453203 DOI: 10.1039/c2cc30384a] [Citation(s) in RCA: 198] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
As(III) specifically interacts with an arsenic-binding aptamer to form an As(III)-aptamer complex, so that the following cationic polymer can aggregate gold nanoparticles (AuNPs) and cause a remarkable change in color, which enables the colorimetric detection of As(III) with high selectivity and a detection limit of 5.3 ppb.
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Affiliation(s)
- Yuangen Wu
- School of Environmental Science and Engineering, and Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai Jiao Tong University, Shanghai, 200240, China
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Fu C, Ji L, Wang W, Luan R, Chen W, Zhan S, Xu B. Frequency of glycated hemoglobin monitoring was inversely associated with glycemic control of patients with Type 2 diabetes mellitus. J Endocrinol Invest 2012; 35:269-73. [PMID: 21606668 DOI: 10.3275/7743] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND The frequency of monitoring glycated hemoglobin (HbA(1c)) and its impact on glycemic control of Chinese Type 2 diabetes mellitus (T2DM) patients have not been well understood. AIM To explore the current status of the glycemic control, the frequency of HbA(1c) monitoring, and their relationship in T2DM outpatients in urban China. SUBJECTS AND METHODS A cross-sectional study was carried out in 15 hospitals purposely sampled from 4 cities of China. T2DM outpatients were consecutively recruited, and underwent a face-to-face interview in outpatient consulting rooms using a self-developed structured questionnaire to collect information. All consented patients were invited to have a free HbA(1c) test. RESULTS Among 1511 subjects, the average level of HbA(1c) was 8.1±1.6% with the ideal percents of 13.6% and 24.8% (HbA(1c)<6.5% and <7.0%, respectively). Less than 1/3 (339/1157) had received 2 or more HbA(1c) tests per yr, and they had a significantly lower average of HbA(1c) than those having only 1 or no test per yr (F=5.012, p=0.007). After adjustment for possible confounders including age, gender, and city, there was a significantly inverse association with adjusted odds ratios of 2.56 [95% confidence interval (CI): 1.71, 3.86] and 1.67 (95% CI: 1.11, 2.50), respectively, between the frequency of monitoring HbA(1c) (null, once vs ≥2 times per yr) and worse glycemic control (HbA(1c)≥7.0%). CONCLUSIONS Glycemic control of T2DM outpatients was poor in urban China. Frequency of HbA(1c) monitoring is seriously insufficient in majority of patients. Lower frequency of HbA(1c) monitoring is significantly associated with poor glycemic control.
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Affiliation(s)
- C Fu
- School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China
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Wu Y, Zhan S, Xu L, Shi W, Xi T, Zhan X, Zhou P. A simple and label-free sensor for mercury(II) detection in aqueous solution by malachite green based on a resonance scattering spectral assay. Chem Commun (Camb) 2011; 47:6027-9. [PMID: 21559531 DOI: 10.1039/c1cc10563a] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mercury ions (Hg(2+)) can specifically interact with the thymine-rich Hg(2+) aptamer and malachite green (MG) to form the Hg(2+) aptamer-MG-Hg(2+) complex, inducing the increase of resonance scattering (RS) intensity at 611 nm, which enables the label-free detection of Hg(2+) in aqueous solution with high selectivity and a detection limit of 1.7 nM.
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Affiliation(s)
- Yuangen Wu
- Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, Shanghai Jiao Tong University, Shanghai, 200240, PR China
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