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Srivastava AK, Singh A, Singh B, Murawski K, Zaqarashvili TV, Yuan D, Scullion E, Mishra SK, Dwivedi BN. Alfvén pulse driven spicule-like jets in the presence of thermal conduction and ion-neutral collision in two-fluid regime. Philos Trans A Math Phys Eng Sci 2024; 382:20230220. [PMID: 38679049 DOI: 10.1098/rsta.2023.0220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 03/19/2024] [Indexed: 05/01/2024]
Abstract
We present the formation of quasi-periodic cool spicule-like jets in the solar atmosphere using 2.5-D numerical simulation in two-fluid regime (ions+neutrals) under the presence of thermal conduction and ion-neutral collision. The nonlinear, impulsive Alfvénic perturbations at the top of the photosphere trigger field aligned magnetoacoustic perturbations due to ponderomotive force. The transport of energy from Alfvén pulse to such vertical velocity perturbations due to ponderomotive force is considered as an initial trigger mechanism. Thereafter, these velocity perturbations steepen into the shocks followed by quasi-periodic rise and fall of the cool jets transporting mass in the overlying corona. This article is part of the theme issue 'Partially ionized plasma of the solar atmosphere: recent advances and future pathways'.
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Affiliation(s)
- A K Srivastava
- Department of Physics, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Anshika Singh
- Department of Physics, Indian Institute of Technology (BHU), Varanasi 221005, India
| | - Balveer Singh
- Aryabhatta Research Institute of Observational Sciences (ARIES), Manora peak, Nainital 263001, India
| | - K Murawski
- Institute of Physics, University of Maria Curie-Sklodowska,Pl. M. Curie-Sklodowskiej, 20-0531 Lublin, Poland
| | - T V Zaqarashvili
- Institut of Physics, IGAM, University of Graz, Universitätsplatz 5, 8010 Graz, Austria
- Department of Astronomy and Astrophysics at Space Research Center, School of Natural Sciences and Medicine, Ilia State University, Kakutsa Cholokashvili Ave. 3/5, Tbilisi 0162, Georgia
- Evgeni Kharadze Georgian National Astrophysical Observatory, Abastumani, Adigeni 0301, Georgia
| | - D Yuan
- Shenzhen Key Laboratory of Numerical Prediction for Space Storm, Institute of Space Science and Applied Technology, Harbin Institute of Technology, Shenzhen, Guangdong 518055, People's Republic of China
| | - E Scullion
- Department of Mathematics, Physics and Electrical Engineering, Northumbria University, NE1 8ST Newcastle upon Tyne, UK
| | - Sudheer K Mishra
- Astronomical Observatory, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - B N Dwivedi
- Rajiv Gandhi Institute of Petroleum Technology, Jais Amethi 229304, India
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Liu H, Tang S, Wang Z, Zhang Q, Yuan D. Organic cocatalysts improved Fenton and Fenton-like processes for water pollution control: A review. Chemosphere 2024; 353:141581. [PMID: 38430936 DOI: 10.1016/j.chemosphere.2024.141581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
In recent times, organic compounds have been extensively utilized to mitigate the limitations associated with Fe(Ⅲ) reduction and the narrow pH range in Fenton and Fenton-like processes, which have garnered considerable attention in relevant studies. This review presents the latest advancements in the comprehensive analysis and applications of organic agents as assistant/cocatalysts during Fenton/Fenton-like reactions for water pollution control. The primary focus includes the following: Firstly, the mechanism of organic co-catalytic reactions is introduced, encompassing both complexation and reduction aspects. Secondly, these organic compounds are classified into distinct categories based on their functional group structures and applications, namely polycarboxylates, aminopolycarboxylic acids, quinones, phenolic acids, humic substances, and sulfhydryl compounds, and their co-catalytic functions and mechanisms of each category are discussed in meticulous detail. Thirdly, a comprehensive comparison is conducted among various types of organic cocatalysts, considering their relative merits, cost implications, toxicity, and other pertinent factors. Finally, the review concludes by addressing the universal challenges and development prospects associated with organic co-catalytic systems. The overarching objective of this review is to provide insights into potential avenues for the future advancement of organic co-catalytic Fenton/Fenton-like reactions in the context of water purification.
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Affiliation(s)
- Huilin Liu
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Shoufeng Tang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Zhibin Wang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Qingrui Zhang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Deling Yuan
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
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Zhou B, Zhang C, Deng H, Chen S, Chang Y, Yang Y, Fu G, Yuan D, Zhao H. [Protective effects of total saponins from Panax japonicus against high-fat diet-induced testicular Sertoli cell junction damage in mice]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:1145-1154. [PMID: 37488797 PMCID: PMC10366514 DOI: 10.12122/j.issn.1673-4254.2023.07.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
OBJECTIVE To investigate the protective effects of total saponins from Panax japonicus (TSPJ) against high-fat dietinduced testicular Sertoli cell junction damage in mice. METHODS Forty male C57BL/6J mice were randomized into normal diet group, high-fat diet group, and low-dose (25 mg/kg) and high-dose (75 mg/kg) TSPJ treatment groups (n=10). The mice in the normal diet group were fed a normal diet, while the mice in the other groups were fed a high-fat diet. After TSPJ treatment via intragastric administration for 5 months, the testes and epididymis of the mice were collected for measurement of weight, testicular and epididymal indices and sperm parameters. HE staining was used for histological evaluation of the testicular tissues and measurement of seminiferous tubule diameter and seminiferous epithelium height. The expression levels of ZO-1, occludin, claudin11, N-cadherin, E-cadherin and β-catenin in Sertoli cells were detected with Western blot, and the localization and expression levels of ZO-1 and β-catenin in the testicular tissues were detected with immunofluorescence assay. The protein expressions of LC3B, p-AKT and p-mTOR in testicular Sertoli cells were detected using double immunofluorescence assay. RESULTS Treatment with TSPJ significantly improved high-fat diet-induced testicular dysfunction by reducing body weight (P < 0.001), increasing testicular and epididymal indices (P < 0.05), and improving sperm concentration and sperm viability (P < 0.05). TSPJ ameliorated testicular pathologies and increased seminiferous epithelium height of the mice with high-fat diet feeding (P < 0.05) without affecting the seminiferous tubule diameter. TSPJ significantly increased the expression levels of ZO-1, occludin, N-cadherin, E-cadherin and β-catenin (P < 0.05) but did not affect claudin11 expression in the testicular tissues. Immunofluorescence assay showed that TSPJ significantly increased ZO-1 and β-catenin expression in the testicular tissues (P < 0.001), downregulated LC3B expression and upregulated p-AKT and p-mTOR expressions in testicular Sertoli cells. CONCLUSION TSPJ alleviates high-fat diet-induced damages of testicular Sertoli cell junctions and spermatogenesis possibly by activating the AKT/mTOR signaling pathway and inhibiting autophagy of testicular Sertoli cells.
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Affiliation(s)
- B Zhou
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
- College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - C Zhang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - H Deng
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
| | - S Chen
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - Y Chang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - Y Yang
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
| | - G Fu
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Medicine and Health Science, China Three Gorges University, Yichang 443002, China
| | - D Yuan
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
| | - H Zhao
- Third-grade Pharmacological Laboratory on Traditional Chinese Medicine of State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, China
- College of Basic Medical Science, China Three Gorges University, Yichang 443002, China
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Tang S, Zhu E, Zhai Z, Liu H, Wang Z, Jiao T, Zhang Q, Yuan D. Promoted elimination of metronidazole in ferrous ions activated peroxydisulfate process by gallic acid complexation. Chemosphere 2023; 319:138025. [PMID: 36736474 DOI: 10.1016/j.chemosphere.2023.138025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 01/07/2023] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
We applied gallic acid (GA) as the complexing agent to stabilizing the regeneration of Fe2+ during the Fe2+/peroxydisulfate (PDS) Fenton-like reaction for promoting the removal of metronidazole (MTZ). This research evaluated the elimination of MTZ by optimizing the dose of GA and Fe2+ and pH condition. MTZ removal reached 83% at the GA: Fe2+ molar ratio of 1:1 (30 μM) and initial pH 5 and 6.2 after 120 min, and the kinetics showed two degradation phases (kobs1 = 0.09636 for the rapid stage and kobs2 = 0.01056 for the slow stage). The Fe2+ and GA complexes could expand the range of pH applicability and effectively stabilize the regeneration of Fe2+, which ultimately promoted the decontamination of MTZ. Sulfate radical (SO4.-), hydroxyl radicals, and singlet oxygen were proved to exist in this ternary system and contribute to MTZ removal, and SO4.- played the dominant role. Furthermore, the possible pathways and mechanisms for MTZ degradation were proposed, and the simulation result indicated that the toxicity of degradation intermediates of MTZ were declined. The GA assisted Fe2+/PDS system provided an improved promising advanced oxidation process for organic wastewater disposal.
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Affiliation(s)
- Shoufeng Tang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Eryu Zhu
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Zhihui Zhai
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Huilin Liu
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Zhibing Wang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Tifeng Jiao
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Qingrui Zhang
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Deling Yuan
- State Key Laboratory of Metastable Materials Science and Technology, Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
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Tang S, Liu H, Zhu E, Zhao T, Wang Z, Jiao T, Zhang Q, Yuan D. Boosting peroxydisulfate Fenton-like reaction by protocatechuic acid chelated-Fe2+ with broad pH range. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Ou CX, Wu PH, Xie JX, Zhang XX, Ma JJ, Deng ZA, Yang XJ, Li Y, Yuan D, Xue LN, Dong C, Deng ZN, Zhang QL. [Efficacy of omalizumab in the treatment of eosinophilic granulomatous polyangiitis with asthma as the first symptom]. Zhonghua Yi Xue Za Zhi 2022; 102:2684-2689. [PMID: 36096695 DOI: 10.3760/cma.j.cn112137-20220327-00640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the efficacy, and safety of omalizumab in the treatment of eosinophilic granulomatous with polyangiitis (EGPA) with asthma as the first symptom. Method: The clinical characteristics of 22 EGPA patients with asthma as the first symptom treated with omalizumab in the First Affiliated Hospital of Guangzhou Medical University from March 2018 to December 2020 were retrospectively analyzed. The asthma control test (ACT) score, the frequency of asthma exacerbation (AE), the Birmingham Vasculitis Activity Score (BVAS), the variation rate of peak expiratory flow (PEF), the percentage of PEF to predicted value of PEF (PEFpred%), the percentage of forced expiratory volume in first second (FEV1) to predicted value of FEV1 (FEV1pred%), the dosage of oral corticosteroid (OCS) and other clinical data [M(Q1, Q3)] were collected before and after treatment, to observe the efficacy and adverse reactions of omalizumab. Results: There were 22 subjects recruited in this study. The median age was 42 (22-70) years. Eleven of the patients were males. After treated with omalizumab for 4 months, there were 68.2%(15/21) of patients who responded to the treatment. In the response group (n=15), the patients' ACT score increased from 19.0 (16.5, 21.0) to 23.0 (21.5, 24.0) (P=0.001). The frequency of AE decreased from 0.7 (0.3, 1.0) to 0 (0, 0.7) per four mouths (P<0.001). The BVAS decreased from 4.0 (2.0, 6.0) to 2.0 (2.0, 4.0) (P=0.007). The variation rate of PEF decreased from 18.8% (14.0%, 27.7%) to 9.2% (6.8%, 11.9%) (P=0.007). The PEFpred% increased from 80.8% (73.5%, 90.7%) to 100.5% (79.4%, 114.0%) (P=0.005). The maintenance dosage of OCS reduced from 15.0 (10.0, 20.0) mg/d to 8.8 (5.0, 10.0) mg/d (P=0.005). The level of baseline eosinophil in peripheral blood of patients in non-response group was higher than that in response group [11.4% (9.2%, 22.6%) vs 3.4% (1.1%, 6.5%), P<0.05]. A total of 190 injections were performed in 22 patients, and only 4 patients (2.1%) had adverse reactions after a single injection of omalizumab, such as dizziness, swelling of injection site and pruritus. The adverse reactions were tolerable. Conclusions: Omalizumab has certain curative effect on EGPA, can reduce asthmatic symptoms and OCS maintenance dosage, and has a good safety profile. The rate of response to the treatment is higher in patients with mild eosinophilic inflammation.
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Affiliation(s)
- C X Ou
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - P H Wu
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - J X Xie
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - X X Zhang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - J J Ma
- Department of Pediatric Hematology, Affiliated Hospital of Guizhou Medical University, Guiyang 550000, China
| | - Z A Deng
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - X J Yang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Y Li
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - D Yuan
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - L N Xue
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - C Dong
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Z N Deng
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Q L Zhang
- Pulmonary and Critical Care Medicine, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Diseases, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
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Xiang Y, Liu H, Zhu E, Yang K, Yuan D, Jiao T, Zhang Q, Tang S. Application of inorganic materials as heterogeneous cocatalyst in Fenton/Fenton-like processes for wastewater treatment. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121293] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Zhong X, Yuan D, Liu Y, Wu X, Li N, Li YP, He J, Liao RP, Yang Y, Liang S. [Analysis of the characteristics of HIV-1 molecular transmission network among people aged 50 years and above in Pengzhou city of Sichuan province]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1107-1111. [PMID: 35856207 DOI: 10.3760/cma.j.cn112338-20220123-00065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To describe the characteristics of molecular transmission network of newly diagnosed HIV-1 infected patients, analyze their risk factors related to network access and provide a scientific basis for precise prevention of HIV infection. Methods: For 340 blood samples collected from confirmed HIV-1 infection cases aged ≥50 years in Pengzhou city of Sichuan province from April 2019 to August 2021, nested PCR amplification was used to amplify, clean up and splice clips the pol gene region. The phylogenetic tree was constructed by multi-sequence comparison to distinguish subtypes, and the pairwise genetic distance was calculated. When the genetic distance threshold was 0.90%, the number of clusters was the largest (41), and the molecular transmission network was constructed.The χ2 test and logistic regression analysis were performed.The software SPSS 19.0 was used for statistical analysis. Results: A total of 340 samples were successfully amplified (97.06%, 330/340) in 330 samples. 6 HIV-1 subtypes identified, including:CRF01_AE(56.67%,187/330), CRF07_BC(27.88%,92/330), B(11.21%,37/330), CRF08_BC(3.33%,11/330), CRF55_01B(0.61%,2/330) and C(0.30%,1/330).The network entry rate was 58.79% (194/330).The results of logistic regression analysis of the risk factors of HIV-1 molecular transmission network in the research subjects showed that compared with illiteracy, junior high school (OR=0.35, 95%CI:0.13-0.97) and high school/technical secondary school (OR=0.14, 95%CI: 0.02-0.97) had lower possibility of network entry. Compared with farmers, unknown occupations (OR=0.40,95%CI: 0.17-0.95) are less likely to enter the network .Compared with CRF01_AE, CRF07_BC (OR=0.20, 95%CI: 0.11-0.35) and CRF08_BC subtype (OR=0.09, 95%CI: 0.02-0.45) were less likely to enter the network. Conclusions: The sources of AIDS transmission among middle-aged and elderly people of rural areas are diversified in Pengzhou city of Sichuan province. AIDS intervention should focus on middle-aged and elderly farmers with low educational level, and strengthen detection and traceability investigation.
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Affiliation(s)
- X Zhong
- School of Management, Chengdu University of Traditional Chinese Medicine/Healthy Sichuan Research Institute, Chengdu 611137, China
| | - D Yuan
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
| | - Y Liu
- Chengdu Municipal Center for Disease Control and Prevention, Chengdu 610041, China
| | - X Wu
- Pengzhou City Center for Disease Control and Prevention, Pengzhou 611900, China
| | - N Li
- Pengzhou City Center for Disease Control and Prevention, Pengzhou 611900, China
| | - Y P Li
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
| | - J He
- School of Management, Chengdu University of Traditional Chinese Medicine/Healthy Sichuan Research Institute, Chengdu 611137, China
| | - R P Liao
- Pengzhou City Center for Disease Control and Prevention, Pengzhou 611900, China
| | - Y Yang
- School of Management, Chengdu University of Traditional Chinese Medicine/Healthy Sichuan Research Institute, Chengdu 611137, China
| | - Shu Liang
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
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Wang P, Yuan D, Yuan J. High fibrinogen-to-albumin ratio with type 2 diabetes mellitus is associated with poor prognosis in patients undergoing percutaneous coronary intervention: 5-year findings from a large cohort. Eur J Prev Cardiol 2022. [DOI: 10.1093/eurjpc/zwac056.076] [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: 11/12/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Public hospital(s). Main funding source(s): the National Clinical Research Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences
Background
Inflammation plays a crucial role in coronary atherosclerosis progression, and growing evidence has demonstrated that the fibrinogen-to-albumin ratio index (FAR) is associated with the severity of coronary artery disease (CAD). However, the long-term risk of cardiovascular events remains indistinct in patients with different level of FAR and different glycemic metabolism status. This study was to access 5-year clinical outcomes of diabetic and non-diabetic patients who underwent percutaneous coronary intervention (PCI) with different level of FAR.
Methods
We consecutively enrolled 10,724 patients with CAD hospitalized for PCI and followed up for major adverse cardiac and cerebrovascular events (MACCE) covering all-cause mortality, non-fatal myocardial infarction, non-fatal ischemic stroke and unplanned coronary revascularization. FAR was computed using the following formula: Fibrinogen (mg/dL) / Albumin (g/L). According to the optimal cut-off value of FAR, which was determined by the surv_cutpoint function of the R package survminer via RStudio software (version 2021.09.0), patients were divided into higher level of FAR (FAR-H) and lower level of (FAR-L) subgroups, and were further categorized into for groups as FAR-H with DM and non-DM, and FAR-L with DM and non-DM.
Results
5,298 patients (58.36 ± 10.36 years, 77.7% male) were ultimately enrolled in the present study. A total of 1,099 (20.7%) MACCEs were documented during the 5-year follow-up. The optimal cut-off value of FAR was 0.0783 by the surv_cutpoint function. Compared to ones with FAR-H and DM, patients with FAR-L and non-DM, FAR-H and non-DM, FAR-L and DM had decreased risk of MACCEs [adjusted hazard ratio (HR): 0.75, 95% confidence interval (CI) 0.64-0.89, p = 0.001; HR: 0.006, 95% CI 0.66-0.93, p = 0.006; HR: 0.81, 95% CI 0.68-0.97, p = 0.019]. Notably, non-diabetic patients with lower level of FAR also had lower all-cause mortality risk than those in the FAR-H/DM group (HR: 0.41, 95% CI 0.27-0.63, p < 0.001). Multivariate Cox proportional hazards regression analysis also indicated the highest risk of MACCEs in patients with FAR-H and DM than others (p for trend = 0.005). In addition, subgroup analysis revealed consistent effects on 5-year MACCE across various subgroups.
Conclusion
Diabetic patients with higher level of FAR had the worse 5-year outcomes compared with patients in other three groups. The level of FAR may help to identify high-risk individuals in this specific population.
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Affiliation(s)
- P Wang
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - D Yuan
- Fuwai Hospital, CAMS and PUMC, Beijing, China
| | - J Yuan
- Fuwai Hospital, CAMS and PUMC, Beijing, China
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Pan S, Zhai Z, Yang K, Xiang Y, Tang S, Zhang Y, Jiao T, Zhang Q, Yuan D. β-Lactoglobulin amyloid fibrils supported Fe(III) to activate peroxydisulfate for organic pollutants elimination. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.120806] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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11
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Wu P, Zhou LN, Xing Y, Sun HP, Wan LJ, Zhou CY, Zhang DD, Zhou XF, Zhang H, Chen MY, Wang YF, Wang NN, Liu WJ, Xu TL, Fu YW, Liu LJ, Yuan D, Chen M, Wang H. [Establishment of morphological reference values for the differential count of white blood cells in peripheral blood smear, as well as nucleated cells and megakaryocytes in bone marrow smear]. Zhonghua Yi Xue Za Zhi 2022; 102:506-512. [PMID: 35184504 DOI: 10.3760/cma.j.cn112137-20210819-01887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To establish the morphological reference values for the differential count of white blood cells in peripheral blood smear as well as nucleated cells and megakaryocytes in bone marrow smear. Methods: From April 2012 to June 2020, 4 221 healthy donors for hematopoietic stem cell transplantation in Hebei Yanda Lu Daopei Hospital were selected. The median age was 36 (3-72) years old, including 2 520 males and 1 701 females. They were divided into four groups according to age: children group, with age≤14 years old [n=334, 11 (3-14) years old], youth group, with age >14 years old and <45 years old [n=2 855, 33 (15-44) years old], middle-aged adult group, with age ≥45 years old and < 60 years old [n=929, 49 (45-59) years old], and older adult group, with age ≥60 years old [n=103, 62 (60-72) years old]. Gender subgroups were established in each age group. According to different hematopoietic characteristics, the children group were divided into two subgroups: children group 1 [n=48, 6 (3-7) years old] and children group 2 [n=286, 11 (8-14) years old]. According to the clinical routine, 100 white blood cells in peripheral blood, 200 nucleated cells in bone marrow, and cell numbers/4.5 cm2 for megakaryocytes were classified and counted. The results of cell count in different age and gender groups were compared, and the reference values of morphological classification were established for different groups with statistical or clinical significance. Results: Due to the existence of statistically significant differences between children and adult groups and different gender subgroups in adults (all P<0.05), the reference values were established for children group and adult gender subgroups. The counts of segmented neutrophils and lymphocytes in peripheral blood were 46.65(43.97-49.32)% and 44.00(10.60-65.10)% in children group 1, 50.73(49.50-51.96)% and 39.55 (38.36-40.74)% in children group 2, and 57.00 (39.00-75.23) % and 33.00 (17.00-52.00) % in adult group, respectively. Bone marrow segmented neutrophils, orthochromatic erythroblasts, and mature lymphocytes were 11.54 (10.68-12.41)%, 14.20 (13.19-15.21)%, and 23.99 (22.06-25.92)% in children group 1, 12.50 (7.00-21.50)%, 15.00(9.50-25.50)%, and 21.02 (20.24-21.81)% in children group 2, 13.50 (7.50-21.00)%, 16.50 (10.50-26.00)%, and 15.50 (7.50-26.00)% in adult male group, and 14.50 (8.00-24.50)%, 14.50 (9.00-23.00)%, and 17.50 (8.50-29.00)% in adult female group, respectively. The myelopoiesis/erythropoiesis ratio in children group, adult male group and adult female group was 1.86∶1 (1.14∶1-3.23∶1), 1.96∶1 (1.12∶1-3.19∶1), 2.22∶1 (1.30∶1-3.69∶1), respectively. The numbers of granular megakaryocytes and thromocytogenic megakaryocytes were 138 (25-567) cells/4.5cm2 and 86 (13-328) cells/4.5 cm2 in children group, and 92 (13-338) cells/4.5 cm2 and 38 (3-162) cells/4.5 cm2 in adult group, respectively. Conclusion: The morphological reference values for the differential count of white blood cells in peripheral blood smear as well as nucleated cells and megakaryocytes in bone marrow smear are successfully established, which is helpful to improve the application of morphological examination in disease screening, diagnosis and monitoring.
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Affiliation(s)
- P Wu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - L N Zhou
- Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - Y Xing
- Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - H P Sun
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - L J Wan
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - C Y Zhou
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - D D Zhang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - X F Zhou
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - H Zhang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - M Y Chen
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - Y F Wang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - N N Wang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - W J Liu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - T L Xu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - Y W Fu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - L J Liu
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - D Yuan
- Department of Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - M Chen
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
| | - H Wang
- Department of Clinical Laboratory, Hebei Yanda Lu Daopei Hospital, Sanhe 065201, China
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Han M, Wang J, Zhao J, Ma Y, Huang B, Yuan D. Systematic Review and Meta-analysis of Outcomes following Endovascular and Open Repair for Infective Native Aortic Aneurysms. J Vasc Surg 2022. [DOI: 10.1016/j.jvs.2021.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Zhao M, Xiang Y, Jiao X, Cao B, Tang S, Zheng Z, Zhang X, Jiao T, Yuan D. MoS2 co-catalysis promoted CaO2 Fenton-like process: Performance and mechanism. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119289] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Yang CX, Zhao XH, Li YY, Zhou YF, Zhang LA, Yuan D, Xia W, Wang JM, Song JD, Lyu W, Luo YF, Jiang LF, Jiang L, Huang XC, Hu XY, Dong XJ, Cheng TY, Zhou YZ, Zhang Y, Che Y. [Incidence of unintended pregnancy within 2 years after delivery and its influencing factors in China]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:616-621. [PMID: 34547862 DOI: 10.3760/cma.j.cn112141-20210611-00316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the present situation of unintended pregnancy within two years postpartum and its influencing factors in China. Methods: Participants who delivered a live birth at 60 hospitals in 15 provinces in the eastern, central and western regions of China during July 2015 to June 2016 were interviewed by using structured questionnaire. Information on occurrence of unintended pregnancy within 2 years after delivery, postpartum contraceptive use, sexual resumption, breastfeeding, and women's socio-demographic characteristics, and so on, were collected. Life-table analysis, cluster log-rank tests and a 2-level Cox regression model were used for data analysis. Results: A total of 18 045 postpartum women were investigated. The cumulative 1- and 2-year unintended pregnancy rates after delivery were 5.3% (95%CI: 4.5%-6.1%) and 13.1% (95%CI: 11.3%-14.8%), respectively. Cox regression model analysis showed that the risk of unintended pregnancy within 2 years postpartum were increased in younger women, ethnic minorities, women with abortion history, and those who had a vaginal delivery with short lactation time and late postpartum contraceptive initiation (all P<0.01). The risk of postpartum unintended pregnancy was not associated with geographic regions and hospitals where women gave a birth (all P>0.05). Conclusions: In China, the risk of unintended pregnancy within 2 years after delivery is relatively high. Service institutions and service providers should improve the quality of postpartum family planning services, promote the use of high effect contraceptive methods, and educate women to use a method at the time of their sexual resumption or even before.
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Affiliation(s)
- C X Yang
- Department of Obstetrics, Tianjin Baodi Hospital, Tianjin 301800, China
| | - X H Zhao
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y Y Li
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y F Zhou
- Center for Maternal Health Care, Changsha Hosptial for Maternal and Child Health Care, Changsha 410007, China
| | - L A Zhang
- Department of Family Planning, Women Health Center of Shanxi, Taiyuan 030013, China
| | - D Yuan
- Department of Obstetrics and Gynecology, Tianjin Hedong District Obstetrics and Gynecology Hospital, Tianjin 300042, China
| | - W Xia
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J M Wang
- Department of Family Planning, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - J D Song
- Department of Obstetrics and Gynecology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, China
| | - W Lyu
- Department of Gynecology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
| | - Y F Luo
- Department of Reproductive Gynecology, Jilin Province Maternal and Child Health Hospital, Changchun 130051, China
| | - L F Jiang
- Research Center of Social Medicine, Henan Institute of Reproduction Health Science and Technology, Zhengzhou 450002, China
| | - L Jiang
- Research Center of Social Medicine, Henan Institute of Reproduction Health Science and Technology, Zhengzhou 450002, China
| | - X C Huang
- Department of Gynecology, Fujian Maternity and Children Health Hospital, Fuzhou 350001, China
| | - X Y Hu
- Department of Maternity Care, Shanghai Center for Women and Children's Health, Shanghai 200062, China
| | - X J Dong
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - T Y Cheng
- Department of Maternal Health Care, Maternal and Child Health Care Hospital of Urumqi, Urumqi 830000, China
| | - Y Z Zhou
- Department of Health Toxicology, School of Public Health, Zunyi Medical University, Zunyi 563006, China
| | - Y Zhang
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y Che
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
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Zhou C, Liang S, Li YP, Yang Y, Liao LJ, Xing H, Ruan YH, Yuan D. [Influencing factors on the death of HIV/AIDS patients treated with antiviral treatment in Butuo county, Liangshan Yi Autonomous Prefecture, 2010-2019]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:886-890. [PMID: 34814483 DOI: 10.3760/cma.j.cn112338-20200902-01115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To understand influencing factors on the deaths of HIV/AIDS patients receiving antireviral treatment in Butuo county of Liangshan Yi Autonomous Prefecture (Liangshan) from 2010 to 2019, to provide data for drug replacement and sustainable antiviral treatment strategy. Methods: A matched case-control study was used to collect basic and follow-up information on AIDS death patients receiving antiviral treatment in Butuo county of Liangshan from 2010 to 2019. The control group was formed by sampling twice the number of cases. The logistic regression model was used to analyze the risk factors affecting mortality. Results: In 3 355 patients of HIV/AIDS treated with antiviral therapy, 1 179 cases in the death group and 2 176 cases in the control group. Including 81.34% were 30-49 years old, 69.09%males, 99.55% Yi nationality, 91.12% were married or cohabitated, 95.77% had junior high school education or below, and 88.41% peasants. Amultivariate logistic stepwise regression model showed that among the death risk factors, age ≥50 years old was 5.08 times (95%CI:3.05-8.48) that of the 18-29, female was 0.70 times (95%CI: 0.52-0.94) than male, the transmission rate of intravenous drug use was 1.43 times (95%CI: 1.06-1.91) that of heterosexual transmission, CD4+T lymphocyte (CD4) count ≥350 cells/μl before treatment was 0.38 times (95%CI: 0.30-0.48) that of CD4 <200 cells/μl before treatment, the most recent antiviral treatment regimen containing LPV/r was 0.04 times (95%CI: 0.01-0.18) than that of stavudine (d4T) + lamivudine (3TC) + nevirapine (NVP)/efavirenz (EFV) regimen, drug resistance was 3.40 times (95%CI: 2.13-5.42) of non-drug resistance, non-viral load and non-drug resistance test results were 12.98 times (95%CI: 10.28-16.40) of non-drug resistance. Conclusions: Age, gender, transmission route, CD4 before treatment, the latest antiviral treatment program, and drug resistance test after antiviral therapy were the influencing factors of HIV/AIDS death in Butuo county. It is necessary to expand the coverage of viral load and drug resistance test to change the antiviral therapeutic schedule scientifically and carry out publicity and education on the compliance of patients with antiviral treatment and medical staff training in order to reduce the mortality of patients with antiviral treatment.
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Affiliation(s)
- C Zhou
- Sichuan Center for Disease Control and Prevention, Chengdu 610000, China
| | - S Liang
- Sichuan Center for Disease Control and Prevention, Chengdu 610000, China
| | - Y P Li
- Sichuan Center for Disease Control and Prevention, Chengdu 610000, China
| | - Y Yang
- Chengdu University of Traditional Chinese Medicine, Chengdu 610032, China
| | - L J Liao
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H Xing
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Y H Ruan
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - D Yuan
- Sichuan Center for Disease Control and Prevention, Chengdu 610000, China
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Wang J, Wang T, Zhao J, Ma Y, Huang B, Yang Y, Yuan D. Comparison of Clinical Outcomes Following One versus Two Stage Hybrid Repair of Thoraco-Abdominal Aortic Aneurysms: A Comprehensive Meta-Analysis. J Vasc Surg 2021. [DOI: 10.1016/j.jvs.2021.01.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Tang S, Zhao M, Yuan D, Li X, Wang Z, Zhang X, Jiao T, Ke J. Fe 3O 4 nanoparticles three-dimensional electro-peroxydisulfate for improving tetracycline degradation. Chemosphere 2021; 268:129315. [PMID: 33352517 DOI: 10.1016/j.chemosphere.2020.129315] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 11/10/2020] [Accepted: 12/12/2020] [Indexed: 06/12/2023]
Abstract
In this work, Fe3O4 nanoparticle employed as the three-dimensional electrode, were introduced into the electro-oxidation system with peroxydisulfate to improve the tetracycline (TC) degradation. The coprecipitation method prepared Fe3O4 was proved to be the irregular sphere-like form through the characterizations of XRD, SEM, N2 adsorption isotherms, and XPS. By the contrast experiments, the EO-Fe3O4-PDS exhibited the outstanding TC degradation capability, which achieved 86.53% after 60 min treatment with current intensity of 20 mA cm-2, Fe3O4 dose of 0.2 g L-1, PDS amount of 2 mmol L-1, initial pH 4.5, and TC concentration of 25 mg L-1. Besides, the influence of current intensity, Fe3O4 dosage, PDS concentration, and beginning pH on the TC degradation was investigated systemically. The consecutive five recycles of Fe3O4 demonstrated that a favorable stability for the coupling process. The EO-Fe3O4-PDS could improve the PDS decomposition and H2O2 production. The sulfate and hydroxyl radicals both took charge of the antibiotic degradation as certified by scavenger test. The TC degradation evolution was presented based on the HPLC-MS analyses of degradation byproducts.
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Affiliation(s)
- Shoufeng Tang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China
| | - Mengzhen Zhao
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China
| | - Deling Yuan
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Xue Li
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China
| | - Zetao Wang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China
| | - Xiaoyu Zhang
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China
| | - Tifeng Jiao
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China; State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Jun Ke
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430074, PR China
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Tang S, Zhao M, Yuan D, Li X, Zhang X, Wang Z, Jiao T, Wang K. MnFe2O4 nanoparticles promoted electrochemical oxidation coupling with persulfate activation for tetracycline degradation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117690] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Zhu J, Zhang J, Xia H, Ge J, Ye X, Guo B, Liu M, Dai L, Zhang L, Chen L, Wang Y, Wang X, Liu H, Chen C, Wang Y, Wang G, Cai M, Yang X, Li F, Fan C, Ruan Y, Yu L, Zhang R, Xu H, Zhang J, Ma X, Yuan D, Zhu Y, Wang D, Betran AP, Qi H, Duan T, Zhang J. Stillbirths in China: a nationwide survey. BJOG 2020; 128:67-76. [PMID: 32770714 PMCID: PMC7754392 DOI: 10.1111/1471-0528.16458] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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] [Accepted: 07/28/2020] [Indexed: 11/30/2022]
Abstract
Objective To estimate a stillbirth rate at 24 or more gestational weeks in 2015–2016 and to explore potentially preventable causes in China. Design A multi‐centre cross‐sectional study. Setting Ninety‐six hospitals distributed in 24 (of 34) provinces in China. Population A total of 75 132 births at 24 completed weeks of gestation or more. Methods COX Proportional Hazard Models were performed to examine risk factors for antepartum and intrapartum stillbirths. Population attributable risk percentage was calculated for major risk factors. Correspondence analysis was used to explore region‐specific risk factors for stillbirths. Main outcome measures Stillbirth rate and risk factors for stillbirth. Results A total of 75 132 births including 949 stillbirths were used for the final analysis, giving a weighted stillbirth rate of 13.2 per 1000 births (95% CI 7.9–18.5). Small for gestational age (SGA) and pre‐eclampsia/eclampsia increased antepartum stillbirths by 26.2% and 11.7%, respectively. Fetal anomalies increased antepartum and intrapartum stillbirths by 17.9% and 7.4%, respectively. Overall, 31.4% of all stillbirths were potentially preventable. Advanced maternal age, pre‐pregnant obesity, chronic hypertension and diabetes mellitus were important risk factors in East China; low education and SGA were major risk factors in Northwest, Southwest, Northeast and South China; and pre‐eclampsia/eclampsia and intrapartum complications were significant risk factors in Central China. Conclusions The prevalence of stillbirth was 13.2 per 1000 births in China in 2015–2016. Nearly one‐third of all stillbirths may be preventable. Strategies based on regional characteristics should be considered to reduce further the burden of stillbirths in China. Tweetable abstract The stillbirth rate was 13.2 per 1000 births in China in 2015–2016 and nearly one‐third of all stillbirths may be preventable. The stillbirth rate was 13.2 per 1000 births in China in 2015–2016 and nearly one‐third of all stillbirths may be preventable.
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Affiliation(s)
- J Zhu
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Obstetrics and Gynecology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Zhang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Xia
- Department of Obstetrics, The Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - J Ge
- Department of Obstetrics, Shijiazhuang Obstetrics and Gynecology Hospital, Hebei, China
| | - X Ye
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Jiangsu, China
| | - B Guo
- Department of Obstetrics, The Maternal and Child Health Hospital of Dongchangfu District, Shangdong, China
| | - M Liu
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - L Dai
- Department of Obstetrics, The Maternal and Child Healthcare Hospital of Xiangtan, Hunan, China
| | - L Zhang
- Department of Obstetrics, Qihetai Maternal and Child Health Hospital, Heilongjiang, China
| | - L Chen
- Department of Obstetrics, Fujian Provincial Maternity and Children's Hospital, Fujian, China
| | - Y Wang
- Department of Obstetrics and Gynecology, Suzhou Municipal Hospital, Nanjing University Medical School, Jiangsu, China
| | - X Wang
- Department of Obstetrics and Gynecology, Traditional Chinese Medicine Integrated Hospital of Tongzhou District, Beijing, China
| | - H Liu
- Department of Obstetrics, Northwest Women's and Children's Hospital, Xi'an Jiao Tong University, Shaanxi, China
| | - C Chen
- Department of Obstetrics, Maternity and Child Care Center of Xingyang, Henan, China
| | - Y Wang
- Department of Obstetrics and Gynecology, Wenzhou People's Hospital, Wenzhou Maternal and Child Health Care Hospital, The Third Clinical Institute Affiliated to Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - G Wang
- Department of Obstetrics, Inner Mongolia Maternity and Child Health Care Hospital, Hohhot, Inner Mongolia Autonomous Region, China
| | - M Cai
- Department of Obstetrics, Changsha Hospital for Maternal and Child Health Care, Hunan, China
| | - X Yang
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - F Li
- Department of Obstetrics, Haidian Maternal and Child Health Hospital, Beijing, China
| | - C Fan
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Hubei, China
| | - Y Ruan
- Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - L Yu
- Department of Obstetrics and Gynecology, Jinhua People's Hospital, Zhejiang, China
| | - R Zhang
- Department of Obstetrics and Gynecology, Wenling Maternal and Child Health Hospital, Zhejiang, China
| | - H Xu
- Department of Obstetrics, Shaoxing Maternal and Child Health Hospital, Zhejiang, China
| | - J Zhang
- Department of Obstetrics and Gynecology, The Fifth Hospital of Xiamen, Fujian, China
| | - X Ma
- Department of Obstetrics, Gansu Provincial Maternity and Child-care Hospital, Lanzhou, Gansu, China
| | - D Yuan
- Department of Obstetrics, Gaizhou Maternal and Child Health Hospital, Liaoning, China
| | - Y Zhu
- Department of Obstetrics and Gynecology, Jiangyin People's Hospital, Southeast University School of Medicine, Jiangsu, China
| | - D Wang
- Department of Obstetrics and Gynecology, The First Hospital Affiliated to Army Medical University, Chongqing, China
| | - A P Betran
- UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction, Department of Reproductive Health and Research, World Health Organization (WHO), Geneva, Switzerland
| | - H Qi
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - T Duan
- Department of Obstetrics, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - J Zhang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Yuan D, Zhang C, Tang S, Sun M, Zhang Y, Rao Y, Wang Z, Ke J. Fe 3+-sulfite complexation enhanced persulfate Fenton-like process for antibiotic degradation based on response surface optimization. Sci Total Environ 2020; 727:138773. [PMID: 32335455 DOI: 10.1016/j.scitotenv.2020.138773] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/15/2020] [Accepted: 04/15/2020] [Indexed: 05/21/2023]
Abstract
To improve the cycle between Fe3+ and Fe2+ in persulfate (PS) Fenton-like system, sulfite (Na2SO3) was used as the iron complexing agent to enhance the degradation of sulfamethoxazole (SMX) antibiotic in water. Response surface methodology (RSM) was applied to regulate the operation parameters for the Fe3+/Na2SO3/PS synergistic system. Based on the RSM, the SMX could be completely degraded when the concentration of Fe3+, Na2SO3, and PS were 0.4, 0.5, and 2.5 mM, respectively. The result showed that the synergistic process represented a high Fe3+ utilization rate and SMX degradation efficiency. After 1 h reaction, 100.00% of SMX and 27.80% of total organic carbon were removed under the ambient conditions containing the initial SMX concentration of 10 μM and initial pH of 5.96. Free radical masking and electron spin-resonance tests proved that hydroxyl radical (HO) and oxysulfur radicals (SOx-, x = 3, 4, 5) were all played the significant role in the antibiotic removal, and the primary active radical was HO. The SMX decomposition pathways based on the formed intermediates was proposed through the high-performance liquid chromatography and mass spectrum analyses. The toxicity assessment prediction indicated that the toxicities of decomposed SMX byproducts were reduced after the coupling treatment.
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Affiliation(s)
- Deling Yuan
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Chen Zhang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Shoufeng Tang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China.
| | - Mengting Sun
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Yating Zhang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Yandi Rao
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Zhibin Wang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse, Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Jun Ke
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430074, PR China
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Wang Y, Yuan D, Zhao S, Chen X. 521 An intelligent assistant diagnosis study of erythema and scaly skin diseases based on deep learning. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Xu G, Wang H, Yuan D, Yao J, Meng L, Li K, Zhang Y, Dang C, Zhu K. RUNX1-activated upregulation of lncRNA RNCR3 promotes cell proliferation, invasion, and suppresses apoptosis in colorectal cancer via miR-1301-3p/AKT1 axis in vitro and in vivo. Clin Transl Oncol 2020; 22:1762-1777. [PMID: 32239427 DOI: 10.1007/s12094-020-02335-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 01/31/2020] [Indexed: 12/24/2022]
Abstract
PURPOSE Long non-coding RNAs (lncRNAs) have participated in progression of colorectal cancer. This study aims to study the role of RUNX1/RNCR3/miR-1301-3p/AKT1 axis in colorectal cancer. METHODS The cancer tissues were from patients with colorectal cancer. The qRT-PCR was used to determine expression of lncRNA RNCR3, miR-1301-3p, and AKT1. Both dual-luciferase reporter assay and ChIP assay were conducted to investigate the binding sites of RUNX1 on RNCR3 promoter. Western blot was performed to analyze expression of AKT1 protein. Both dual-luciferase reporter assay and RIP assay were performed to detect the interacting sites between RNCR3 and miR-1301-3p. The CCK-8 assay, soft agar assay, transwell assay, and annexin-V-FITC/PI staining were applied to analyze the cell growth, invasion, and apoptosis, respectively. RESULTS The data demonstrated that RNCR3 was elevated in colorectal cancer, and it was negatively correlated with expression of miR-1301-3p which was decreased in cancers. Then, RNCR3 could interact with and suppress miR-1301-3p expression in HCT116 and SW480. Knockdown of RNCR3 or miR-1301-3p overexpression significantly inhibited cell growth, invasion, and increased apoptosis through suppressing expression of Cyclin A1, PCNA, N-cadherin, Bcl-2, and promoting expression of E-cadherin, Bax in vitro and in vivo. RUNX1 was directly bound to RNCR3 promoter to activate RNCR3 expression. Furthermore, overexpression of RNCR3 blocked tumor inhibitory effects of miR-1301-3p on proliferation, colony formation, invasion, and apoptosis in vitro and in vivo. Additionally, RNCR3 and miR-1301-3p synergistically modulated AKT1 expression. CONCLUSION RUNX1-activated upregulation of RNCR3 promoted colorectal cancer progression by sponging miR-1301-3p to elevate AKT1 levels in vitro and in vivo.
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Affiliation(s)
- G Xu
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China.
| | - H Wang
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - D Yuan
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - J Yao
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - L Meng
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - K Li
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - Y Zhang
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - C Dang
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
| | - K Zhu
- Department of Surgical Oncology, The First Affiliated Hospital of Xi'an Jiao Tong University, 277 West Yan-ta Road, Xi 'an, 710061, Shaanxi, People's Republic of China
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Yuan D, Sun M, Tang S, Zhang Y, Wang Z, Qi J, Rao Y, Zhang Q. All-solid-state BiVO4/ZnIn2S4 Z-scheme composite with efficient charge separations for improved visible light photocatalytic organics degradation. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.09.051] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Tang S, Tang J, Yuan D, Wang Z, Zhang Y, Rao Y. Elimination of humic acid in water: comparison of UV/PDS and UV/PMS. RSC Adv 2020; 10:17627-17634. [PMID: 35515628 PMCID: PMC9053580 DOI: 10.1039/d0ra01787f] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 04/20/2020] [Indexed: 11/21/2022] Open
Abstract
Humic substances are polyelectrolytic macromolecules; their presence in water leads to many environmental problems without effective treatment. In this work, the elimination of humic acid (HA), a typical humic substance, has been examined through ultraviolet (UV) activation systems in the presence of peroxydisulfate (PDS) and peroxymonosulfate (PMS), respectively. The results indicated that 92.9% and 97.1% of HA were eliminated with rate constants of 0.0328 ± 0.0006 and 0.0436 ± 0.0011 min−1 with 180 and 60 min treatment times at pH 6 and 3 when adding 3 and 1 mmol L−1 oxidant during UV/PDS and UV/PMS, respectively; the corresponding electric energies per order were 0.0287 and 0.0131 kW h m−3. The HA removal was systematically investigated by varying different reaction parameters, including radical scavengers, persulphate dose, solution pH, and initial HA concentration, and by addition of various common ions. Moreover, the decomposition details were identified through the changes in the dissolved organic carbon, unique UV absorbances, and UV spectroscopic ratios. Furthermore, the destruction mechanism was verified by fluorescence spectroscopy, demonstrating that the HA structure was decomposed to small molecular fractions in the two UV/persulphate systems. In addition, the purification of HA by the two UV/persulphate processes was assessed in actual water matrices. In this work, UV-activated persulphate treatment (UV/PDS and UV/PMS) was found to be an effective method for HA removal.![]()
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Affiliation(s)
- Shoufeng Tang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao
| | - Jiachen Tang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao
| | - Deling Yuan
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao
| | - Zetao Wang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao
| | - Yating Zhang
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao
| | - Yandi Rao
- Hebei Key Laboratory of Heavy Metal Deep-Remediation in Water and Resource Reuse
- Hebei Key Laboratory of Applied Chemistry
- School of Environmental and Chemical Engineering
- Yanshan University
- Qinhuangdao
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Yuan D, Liu XM, Fang Z, Du LL, Chang J, Lin SH. Protective effect of resveratrol on kidney in rats with diabetic nephropathy and its effect on endoplasmic reticulum stress. Eur Rev Med Pharmacol Sci 2019; 22:1485-1493. [PMID: 29565511 DOI: 10.26355/eurrev_201803_14497] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Diabetic nephropathy (DN) can cause chronic renal insufficiency and significantly reduce the life quality of patients with diabetes mellitus, and may eventually lead to death. The study investigated the expression of endoplasmic reticulum stress-related factors, which have important roles in the progress of DN and to explore effects of resveratrol on DN and the possible mechanism. MATERIALS AND METHODS Specific pathogen free (SPF) grade healthy male Sprague Dawley (SD) rats were divided into different groups for different treatments. The diabetic rat model was established by intraperitoneal injection of low-dose streptozotocin (STZ) (40 mg/kg). The normal rats and diabetes model rats were divided into four groups including normal control group (N), normal control + resveratrol (N+R), model group (M), and model + resveratrol group (M+R) for different treatments. The changes of renal histology were observed by immunohistochemistry. Glucose oxidase/peroxidase method was used to measure FPG, UP 24 h content was measured by bicinchoninic acid (BCA) assay, BUN, Scr and Cys C content were measured by automatic biochemical analyzer. The expressions of 78 kDa glucose-regulated protein (GRP78), protein kinase RNA-like endoplasmic reticulum kinase (PERK), and activating transcription factor 4 (ATF4) and C/EBP-homologous protein (CHOP) were analyzed by Western blot. RESULTS Resveratrol treatment significantly reduced the fasting blood glucose level, urinary protein level and renal pathological damage. The phosphorylation of PERK in the kidney of rats with diabetes was up-regulated, while resveratrol treatment reduced this change. The expression of p- PERK, GRP78, ATF4, and CHOP was significantly increased in rats with diabetes, while resveratrol treatment can reduce the increased level of those endoplasmic reticulum stress related factors. CONCLUSIONS Resveratrol has a good therapeutic effect on DN in rats without side effect. The mechanism may be related to the regulation of endoplasmic reticulum stress response.
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Affiliation(s)
- D Yuan
- Department of Nephrology, Yantaishan Hospital, Yantai, Shandong Province, China.
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Tang S, Li N, Yuan D, Tang J, Li X, Zhang C, Rao Y. Comparative study of persulfate oxidants promoted photocatalytic fuel cell performance: Simultaneous dye removal and electricity generation. Chemosphere 2019; 234:658-667. [PMID: 31234083 DOI: 10.1016/j.chemosphere.2019.06.112] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 05/25/2019] [Accepted: 06/14/2019] [Indexed: 06/09/2023]
Abstract
Introducing peroxymonosulfate (PMS) and peroxydisulfate (PDS) into the photocatalytic fuel cell (PFC) system were investigated by comparing the Reactive Brilliant Blue (KN-R) degradation and synchronous electricity production. The two persulfates (PS) themselves are strong oxidant, and could be activated and as electron sacrificial agent in the PFCs, facilitating the photoelectrocatalysis and expanding redox to the entire cell space. Hence, the two established PFC/PS systems manifested prominent cell performances, enhancing the KN-R decomposition and electric power production relative to the virgin PFC. Thereinto, the KN-R removal rate of PFC/PMS was faster than that of PFC/PDS, but an opposite trend appeared in the electricity generation. Besides, the cell performances of the two cooperative systems were evaluated at different operation conditions, including PS dosage, solution pH, and irradiation strength. Moreover, the dye elimination principle was explored by radicals scavenging experiment, and the consequence revealed that hydroxyl radical (HO•), sulfate radical (SO4•-) and singlet oxygen were chief active species in the PFC/PMS, and HO•, SO4•- and superoxide anion played the key roles in the PFC/PDS. Furthermore, the calculated economic indicator demonstrated that the economy of the two synergistic processes were greater than that of UV/PS and solo PFC, and the PFC/PDS was more cost-effective than PFC/PMS.
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Affiliation(s)
- Shoufeng Tang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Na Li
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Deling Yuan
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Jiachen Tang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Xue Li
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Chen Zhang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Yandi Rao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
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Lin H, Ran W, Chen X, Wang B, Yang P, Li Y, Xiao Y, Wang X, Li G, Wang L, Han Y, Peng Y, Lang J, Liang Y, Tian G, Yuan D, Yang J, Deng C, Xing X. Whole-exome sequencing of tumour-only samples reveals the association between somatic alterations and clinical features in pancreatic cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz431.012] [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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Yuan D, Zhang C, Tang S, Li X, Tang J, Rao Y, Wang Z, Zhang Q. Enhancing CaO 2 fenton-like process by Fe(II)-oxalic acid complexation for organic wastewater treatment. Water Res 2019; 163:114861. [PMID: 31336204 DOI: 10.1016/j.watres.2019.114861] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [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: 04/08/2019] [Revised: 06/11/2019] [Accepted: 07/13/2019] [Indexed: 06/10/2023]
Abstract
Hydrogen peroxide (H2O2) is used widely as Fenton's reagent for organic wastewater treatment. However, the application range of the optimum Fenton reaction is narrow, needing to adjust pH before and after treatment. Besides, the disproportionation of H2O2 and generated iron precipitation also confine the normal operation of Fenton method. To overcome the drawbacks of the traditional Fenton process, a Fe(II) catalyzed calcium peroxide (CaO2) Fenton-like process assisted by oxalic acid (OA) for aqueous organic pollutants degradation was proposed (Fe2+/OA/CaO2). The methyl orange (MO) as a typical organic pollutant, its removal performances by this Fe2+/OA/CaO2 system were evaluated. In the optimized conditions, 99% of MO was degraded within 15 min, and 38% mineralized after 180 min when the molar ratio of Fe2+: OA: CaO2 was 1: 2: 2 (Fe2+ = 1.5 mM). Radicals detection indicated that hydroxyl radical (HO•) was the main reactive species for the MO elimination. Furthermore, density functional theory calculation was in good agreement with the experimental results, which proved that the Fe2+/OA/CaO2 could improve the circulation between Fe2+ and Fe3+, promoting the oxygen reactive species generation and pollutant removal. The main intermediates were identified and the degradation pathways were proposed based on the results of the mass spectrum analysis, and the attack of HO• was suggested as the main function for the MO decomposition. The matrix effects of water constituents on the performance of Fe2+/OA/CaO2 were investigated, and the results showed that a certain amount of Cl-, NO3-, HCO3-, and HA affected the elimination than SO42-. Finally, the attempt of actual wastewater disposal indicated the synergistic system possessed good potential for future practical application.
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Affiliation(s)
- Deling Yuan
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Chen Zhang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Shoufeng Tang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Xue Li
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Jiachen Tang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Yandi Rao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Zhibin Wang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Qingrui Zhang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
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Li X, Tang S, Yuan D, Tang J, Zhang C, Li N, Rao Y. Improved degradation of anthraquinone dye by electrochemical activation of PDS. Ecotoxicol Environ Saf 2019; 177:77-85. [PMID: 30974246 DOI: 10.1016/j.ecoenv.2019.04.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/02/2019] [Accepted: 04/03/2019] [Indexed: 06/09/2023]
Abstract
Electrochemical oxidation (EO) coupled with peroxydisulfate (PDS) activation as a synergistic wastewater treatment process (PDS/EO) was performed to degrade anthraquinone dye-Reactive Brilliant Blue (RBB) in aqueous solution. Introducing PDS into the EO improved the RBB removal than the sole PDS and conventional EO systems. The RBB could activate PDS to a certain degree by itself. By the comparison of various inorganic ions addition, it showed that adding NO3- as the background electrolyte was more effective than the systems using the Cl- and SO42-, respectively. In this PDS/EO-NO3- system, increasing PDS concentration (1-5 mmol L-1) and current density (5-10 mA cm-2) considerably promoted the degradation of RBB. The adjustment of the solution pH displayed that the acidic and neutral condition was beneficial to the RBB removal, and the synergistic effect was inverse ratio to the RBB initial concentration. Furthermore, the scavenger experiments verified that both SO4·- and HO· were the major active substances in the RBB decomposition, and other reactive oxygen species also had considerable contributions. Thereinto NO3- only act a catalytic agent to improve the generation of active matters in the PDS/EO-NO3-. Overall, the proposed synergistic process could serve as an efficient method for the degradation of anthraquinone dye.
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Affiliation(s)
- Xue Li
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Shoufeng Tang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Deling Yuan
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China.
| | - Jiachen Tang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Chen Zhang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Na Li
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
| | - Yandi Rao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, PR China
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Yang H, Ye L, Su L, Liu Y, Xiao L, Hu Y, Wei DB, Yuan D, Zhou GS, Liu HL, Yu J, Liang S. [An analysis on incidence of HIV-1 epidemics among men who have sex with men in Sichuan Province during 2011-2015]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:327-329. [PMID: 30841677 DOI: 10.3760/cma.j.issn.0253-9624.2019.03.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The assay was used in HIV/AIDS surveillance sentinel sites to identify recent HIV-1 infection, to estimate HIV-1 incidence and understand the epidemic trends among men who have sex with men during 2011-2015. During 2011-2015, the HIV-1 incidence of men who have sex with men was 5.16%(95%CI: 4.65%-5.66%) in Sichuan Province. According to<Pilot study on classification criteria of AIDS epidemic in China>, a total of 9 cities had been divided into two type of regions: the first type(the proportion of live HIV/AIDS accounts for more than 0.1% of the permanent population, and the number of live HIV/AIDS has reached 500 cases and above) and the second type(the proportion of live HIV/AIDS accounts for 0.03% to 0.100% of the permanent population, and the number of live HIV/AIDS has reached 100-500 cases). During 2011-2015, the HIV-1 incidence of the second type was 4.24% (95%CI: 3.72%-4.76%). The HIV-1 incidence of men who have sex with men was at a high level. The spread of HIV-1 to the second region was possible.
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Affiliation(s)
- H Yang
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Ye
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Su
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - Y Liu
- Department for AIDS/STD Control and Prevention, Chengdu Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Xiao
- Department for Sanitary Inspection, Yi Autonomous Prefecture of Liangshan Center for Disease Control and Prevention, Xichang 615000, China
| | - Y Hu
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - D B Wei
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - D Yuan
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - G S Zhou
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - H L Liu
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - J Yu
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - S Liang
- Department for AIDS/STD Control and Prevention, Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
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Dong J, Gao N, Waller AS, Cook FR, Fan S, Yuan D, Du Y, Li F, Norimine J, Zhu W. An outbreak of strangles associated with a novel genotype of Streptococcus equi subspecies equi in donkeys in China during 2018. Equine Vet J 2019; 51:743-748. [PMID: 30900775 DOI: 10.1111/evj.13114] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 03/15/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND Strangles is a highly contagious respiratory disease of equids caused by the bacterium Streptococcus equi subspecies equi. OBJECTIVES To identify the cause of an outbreak of strangles that occurred on donkey farms within the Shandong Province of China and determine the prevalence of the disease. STUDY DESIGN Cross-sectional. METHODS Samples were taken from clinically affected animals to measure the prevalence of strangles within the population of donkeys at six intensive farms in China and identify the SeM type of isolate recovered from affected animals. Diagnosis was confirmed by bacterial isolation, biochemical tests and PCR. Epidemiological data were analysed using Chi-square test and a Fisher's exact two-sided test. The SeM gene of S. equi isolates recovered from affected animals was determined and compared with the SeM database PubMLST-seM. RESULTS In July and August 2018, an outbreak of strangles occurred on six donkey farms within the Shandong Province of China. The overall prevalence of disease within the different donkey herds was 13.4%. Younger animals were worst affected with 40.3% (83/206) of donkey foals aged under 1 year exhibiting clinical signs compared with 12.5% (191/1525) of donkeys aged one to 2 years and 3.8% (17/442) of donkeys over 2 years of age. Analysis of SeM sequencing data identified that the farms were affected by the same strain of S. equi, SD201807, which contains the novel 136 allele of SeM. MAIN LIMITATIONS Healthy donkeys were not sampled in this study. CONCLUSIONS The number of intensive donkey breeding farms in China has risen recently. The higher numbers of animals that are in closer proximity to one another raise the potential for the transmission of infectious diseases such as strangles. This is the first description of a strangles outbreak among donkey herds in China. The Summary is available in Chinese - see Supporting information.
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Affiliation(s)
- J Dong
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China.,Shandong Donkey Industry Technology Collaborative Innovation Center, College of Agronomy, Liaocheng University, Liaocheng, China.,Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
| | - N Gao
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China
| | | | - F R Cook
- Department of Veterinary Science, Gluck Equine Research Center, University of Kentucky, Lexington, Kentucky, USA
| | - S Fan
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China
| | - D Yuan
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China
| | - Y Du
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China
| | - F Li
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China
| | - J Norimine
- Center for Animal Disease Control, University of Miyazaki, Miyazaki, Japan
| | - W Zhu
- Department of Veterinary Medical Science, Shandong Vocational Animal Science and Veterinary College, Weifang, China.,Shandong Donkey Industry Technology Collaborative Innovation Center, College of Agronomy, Liaocheng University, Liaocheng, China
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Tang S, Yuan D, Rao Y, Li M, Shi G, Gu J, Zhang T. Percarbonate promoted antibiotic decomposition in dielectric barrier discharge plasma. J Hazard Mater 2019; 366:669-676. [PMID: 30580141 DOI: 10.1016/j.jhazmat.2018.12.056] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 12/10/2018] [Accepted: 12/17/2018] [Indexed: 06/09/2023]
Abstract
A coupling technique introducing sodium percarbonate (SPC) into a dielectric barrier discharge (DBD) plasma was investigated to enhance the degradation of antibiotic tetracycline (TC) in aqueous. The dominant effects of SPC addition amount and discharge voltage were evaluated firstly. The experiments indicated that the moderate SPC dosages in the DBD presented an obvious synergistic effect, improving the TC decomposition efficiency and kinetics. Elevating the voltage was conducive for the promotion of antibiotic abatement. After 5 min treatment, the removal reached 94.3% at the SPC of 52.0 μmol/L and voltage of 4.8 kV for 20 mg/L TC. Especially the defined synergy factors were greater than one since the SPC being added, and the energy yield was increased by 155%. Besides, the function mechanism was explained by the hydrogen peroxide and ozone quantitative determinations and radical scavenger test, and the results confirmed that the collaborative method could increase the generation of reactive species, and the produced hydroxyl and superoxide radicals both played the significant roles for the TC elimination. Furthermore, the decomposition and mineralization of the synergism were verified by UV-vis spectroscopy, TOC and COD analyses, and the degradation byproducts and transformation pathways were identified based on the analysis of HPLC-MS finally.
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Affiliation(s)
- Shoufeng Tang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Deling Yuan
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China.
| | - Yandi Rao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Menghan Li
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Guimei Shi
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Jianmin Gu
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Tianhu Zhang
- School of Civil Engineering & Mechanics, Yanshan University, Qinhuangdao 066004, PR China.
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Abstract
Small cell lung cancer (SCLC) is of a high-grade malignancy with a high metastatic potential and poor clinical prognosis. Unfortunately, SCLC initially exhibits a good response to chemotherapy and radiation therapy, but inevitably, relapses decrease patients' chance of survival. Despite tremendous advances on the development of new chemotherapeutic agents, the prognosis of this disease remains poor. Immunotherapy plays a role in eliciting an anticancer response by modulating the patient's immune response of the tumor. Several studies have demonstrated that abnormal autoimmune regulation has a close relationship with SCLC. Thus, several immunotherapy trials are focused on SCLC treatment, including such approaches as immune checkpoints blockers, tumor vaccine, antigenic targets and adoptive cellular immunotherapy to benefit patients with SCLC. To date, the results from immunotherapy in SCLC have not been promising. For example, tumor vaccines have not been demonstrated to have a significant survival benefit. However, there have been many promising advances with immune checkpoints blockers. This review will provide a general overview of immunotherapy in SCLC. The landmark clinical trials in previous successful immunotherapy studies are summarized here. Finally, the challenges of immunotherapy in SCLC are discussed to facilitate the prediction of possible and valuable strategies for future therapy.
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Lin W, Yuan D, Deng Z, Niu B, Chen Q. The cellular and molecular mechanism of glutaraldehyde-didecyldimethylammonium bromide as a disinfectant against Candida albicans. J Appl Microbiol 2019; 126:102-112. [PMID: 30365207 DOI: 10.1111/jam.14142] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 07/09/2018] [Revised: 09/13/2018] [Accepted: 10/11/2018] [Indexed: 11/30/2022]
Abstract
OBJECTIVES In our previous research, we have developed a new combination disinfectant, glutaraldehyde-didecyldimethylammonium bromide (GD). It was verified that GD had a strong effect on both Escherichia coli and Staphylococcus aureus. In this work, Candida albicans was selected as an object, and it could be killed by GD. We aimed to investigate the cellular and molecular mechanism of GD effecting on C. albicans. METHODS AND RESULTS The results of sterilization experiment indicated that GD was effective on C. albicans. Flow cytometry and atomic absorption spectrometry were applied to detect cell membrane damage of C. albicans. Luciferase reaction and Bradford method were carried out to detect ATP content and protein quantitation. Transmission electron microscopy was used for intracellular organelles morphological observation. In order to study changes in mitochondrial membrane potential, Rh 123 was used as an indicator. DNA conformation analysis was performed by molecular modelling and circular dichroism. The results indicated that membrane permeability was increased rapidly owing to GD effect, and the leaked K+ and Mg2+ were about 12·1 and 12·4 times those of the control, respectively, at 10 min after GD treatment. Simultaneously, ATP and protein also leaked rapidly out of the cell. Mitochondrial membrane potential was destroyed, succinic dehydrogenase activity was significantly decreased and DNA conformation was changed because of GD action. CONCLUSIONS Glutaraldehyde-didecyldimethylammonium bromide disinfected C. albicans through distorting cell membrane integrity and permeability, disturbing the intracellular homeostasis by intracellular substances leakage, especially K+ , Mg2+ , ATP and protein, causing electrolyte imbalance of mitochondria, changing DNA structure, which finally led to cell death. SIGNIFICANCE AND IMPACT OF THE STUDY This study focused on the cellular and molecular mechanism of GD as a disinfectant against C. albicans. It is important to provide theoretical support to GD against Candida albicans in practical application.
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Affiliation(s)
- W Lin
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - D Yuan
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - Z Deng
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - B Niu
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
| | - Q Chen
- Shanghai Key Laboratory of Bio-Energy Crops, School of Life Sciences, Shanghai University, Shanghai, China
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Tang S, Yuan D, Rao Y, Zhang J, Qu Y, Gu J. Evaluation of antibiotic oxytetracycline removal in water using a gas phase dielectric barrier discharge plasma. J Environ Manage 2018; 226:22-29. [PMID: 30103200 DOI: 10.1016/j.jenvman.2018.08.022] [Citation(s) in RCA: 9] [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: 05/05/2018] [Revised: 08/01/2018] [Accepted: 08/06/2018] [Indexed: 06/08/2023]
Abstract
Degradation of oxytetracycline (OTC), a primary member of antibiotics in water, was performed by a gas phase dielectric barrier discharge (GPDBD) plasma reactor. The influences of operation conditions including applied voltages, air bubbling rates, initial OTC concentrations and initial pH values on OTC abatement were investigated respectively. The results showed that the decontamination process can be fitted by first order kinetics, and the removal ratio and rate were affected obviously by those parameters. After 20 min of discharge treatment, approximately 93.4% of OTC was removed under the experimental conditions: applied voltage of 7.5 kV, air flow rate of 1.0 L/min, initial OTC concentration of 100 mg/L, and initial pH of 5.0. In addition, TOC and COD removal efficiency reached 43.0% and 73.7% at the original pH 9.3, respectively. Furthermore, the amounts of hydrogen peroxide and ozone in aqueous were quantitatively measured to evaluate their roles during antibiotic removal, and the main function of hydroxyl radicals was demonstrated by the radicals scavenger test. At last, the analyses of UV-Vis spectra and HPLC-MS were employed to study the OTC elimination mechanism, and the possible decomposition pathway was proposed based on the speculated intermediates.
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Affiliation(s)
- Shoufeng Tang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Deling Yuan
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China.
| | - Yandi Rao
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Jingyi Zhang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Ying Qu
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
| | - Jianmin Gu
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, PR China
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Li KX, Wang JS, Yuan D, Zhao RX, Wang YX, Zhan XA. Effects of different selenium sources and levels on antioxidant status in broiler breeders. Asian-Australas J Anim Sci 2018; 31:1939-1945. [PMID: 29879825 PMCID: PMC6212737 DOI: 10.5713/ajas.18.0226] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 05/18/2018] [Indexed: 02/08/2023]
Abstract
OBJECTIVE This study was conducted with the objectives to examine the impacts of inorganic selenium (Se) and different types and levels of organic selenium on the serum and tissues Se status and antioxidant capacity in broiler breeders. METHODS Five hundred and forty 48-wk-old Lingnan Yellow broiler breeders were randomly assigned to 6 dietary treatments, provided same basal diet (0.04 mg/kg of Se) with 0.15 mg/kg, or 0.30 mg/kg of Se from sodium selenite (SS) or from selenium-enriched yeast (SY) or from selenomethionine (SM). The broiler breeders were slaughtered after an 8-wk experiment. RESULTS The results showed that SM was better than SY and SS, 0.30 mg/kg level was better than 0.15 mg/kg level in Se deposition (p<0.05) in serum, liver, kidney, pancreas and muscle; in antioxidant status, organic selenium had better effects than SS in broiler breeders (p<0.05), but SM and SY had a similar result, and 0.15 mg/kg level was better than 0.30 mg/kg (p<0.05). CONCLUSION The results demonstrated the evident advantage of supplementation of broiler breeders with 0.15 mg/kg SM, which improved tissue Se concentrations and antioxidant status, and can be considered as the best selenium source.
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Affiliation(s)
- K X Li
- Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture and Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - J S Wang
- Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture and Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - D Yuan
- Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture and Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - R X Zhao
- Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture and Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - Y X Wang
- College of Animal Science and Technology, Zhejiang A and F University, Linan 311300, China
| | - X A Zhan
- Key Laboratory of Animal Nutrition and Feed in East China, Ministry of Agriculture and Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou 310058, China
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Li N, Tang S, Rao Y, Qi J, Wang P, Jiang Y, Huang H, Gu J, Yuan D. Improved dye removal and simultaneous electricity production in a photocatalytic fuel cell coupling with persulfate activation. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.03.083] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yang H, Su L, Ye L, Xiao L, Hu Y, Shen MG, Wei DB, Yuan D, Zhou GS, Liu HL, Yu J, Liang S. [Incidence rates of HIV-1 epidemics among 4 high risk groups in Sichuan province during 2011-2015]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 38:1649-1654. [PMID: 29294581 DOI: 10.3760/cma.j.issn.0254-6450.2017.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Data from the HIV/AIDS surveillance sentinel sites was used to identify the recent HIV-1 infections and to estimate the HIV-1 incidence and epidemic trends among intravenous drug users (IDU), MSM, female sex workers and men attending the sexually transmitted disease clinics in Sichuan province. Methods: Specimens collected from IDUs, MSM, female sex workers and men attending the sexually transmitted disease clinics sentinel sites were confirmed as HIV-1 positive and tested with BED-CEIA. Annual HIV-1 prevalence and incidence rates were calculated and the incidence was adjusted by McNermar method. Results: A total number of 194 223 serum specimens were collected and HIV antibody tested, with 5 297 HIV-1 positive. 4 640 of the positives underwent BED-CEIA, with 749 identified as recent infections. During 2011-2015, HIV-1 incidence rates of the four types of population appeared as 5.16% (95%CI: 4.65-5.66), 0.22% (95%CI:0.16-0.28), 0.57%(95%CI: 0.45-0.69), 7.53% (95%CI: 6.06-9.01) and 0.44% (95%CI: 0.36-0.53) respectively. Significant differences were seen in the HIV-1 incidence rates. Conclusions: The HIV-1 incidence rates of IDUs from other sentinel sites in Sichuan province, female sex workers and men attending the sexually transmitted disease clinics appeared low, showing that the AIDS prevention and control activities worked effectively. However, the HIV-1 incidence of MSM was still at high level and even rising, suggesting that HIV-1 transmission between MSM and IDUs was possible.
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Affiliation(s)
- H Yang
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Su
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Ye
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - L Xiao
- Liangshan Yi Autonomous Prefecture Center for Disease Control and Prevention, Xichang 615000, China
| | - Y Hu
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - M G Shen
- Liangshan Yi Autonomous Prefecture Center for Disease Control and Prevention, Xichang 615000, China
| | - D B Wei
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - D Yuan
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - G S Zhou
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - H L Liu
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - J Yu
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - S Liang
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
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Sun Q, Shen M, Li F, Liu J, Lu L, Zhu M, Yuan D. Immune Regulatory Effects of Enteromorphaclathrata Polysaccharides on Nd Attenuated Vaccine in a Chicken Model Infected with Reticuloendotheliosis Virus. Rev Bras Cienc Avic 2017. [DOI: 10.1590/1806-9061-2016-0460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Q Sun
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - M Shen
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - F Li
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - J Liu
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - L Lu
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - M Zhu
- Shandong Animal Husbandry and Veterinary Vocational College, China
| | - D Yuan
- Shandong Animal Husbandry and Veterinary Vocational College, China
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Huang S, Yuan D, Guo JC, Zhang TP, Zhao YP. [Bit1 mediates the malignant behaviors in pancreatic cancer and its potential clinical significance]. Zhonghua Wai Ke Za Zhi 2017; 55:857-862. [PMID: 29136735 DOI: 10.3760/cma.j.issn.0529-5815.2017.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the potential role of Bit1 in the pathogenesis of pancreatic ductal cancer cells(PDAC) and its potential clinical application value. Methods: Real-time PCR and Western blot were employed to detect the expression of Bit1 in six pancreatic cancer cells, then the tool cells were selected to further study the function of Bit1.PolyHEMA was used to monitor the suspended cell culture condition in vitro.The invasion and migration abilities of pancreatic cancer cells were detected through Transwell assay. Western blot and confocal assay were used to explore the potential mechanism of Bit1 in the process of metastasis.The expression of Bit1 was detected through tissue microarray, the potential relationship between Bit1 and other clinical factors were analyzed. Results: The results of real-time PCR and Western blot indicated that the expression of Bit1 was highest in the PANC1 cells and lowest in the Mia paca2 cells (gene: 3.13±0.40 vs. 1.00±0.35, protein: 1.77±1.00 vs. 0.23±0.45). The shBit1 PANC1 and Bit1-OE(over expression) Mia paca2 cells were successfully constructed.Bit1 over expression could promote the anoikis rate of Mia paca2 cells, and Bit knockdown could inhibit the anoikis incidence.Bit1 over expression suppressed the motility and invasion of Mia paca2 cells, but Bit1 knockdown could accelerate the migration and invasion ability of PANC1 cells.Bit1 could potentially affect pancreatic cancer cells' malignant behaviors through epithelial-mesenchymal transition process.Bit1 expression was significantly associated with pancreatic cancer's neural invasion (P<0.05). Conclusions: Bit1 could affect the anoikis incidence of pancreatic cancer, Bit1 negatively affect the migration and invasion abilities of PDAC, the EMT process was potentially involved in the whole modulation process.Bit1 expression is associated with neural invasion in pancreatic cancer patients.
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Affiliation(s)
- S Huang
- Department of General Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100730, China
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Zhao H, Song L, Huang W, Liu J, Yuan D, Wang Y, Zhang C. Total flavonoids of Epimedium
reduce ageing-related oxidative DNA damage in testis of rats via p53-dependent pathway. Andrologia 2017; 49. [PMID: 28370226 DOI: 10.1111/and.12756] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2016] [Indexed: 12/11/2022] Open
Affiliation(s)
- H. Zhao
- Medical College of China Three Gorges University; Yichang China
| | - L. Song
- Medical College of China Three Gorges University; Yichang China
| | - W. Huang
- Medical College of China Three Gorges University; Yichang China
| | - J. Liu
- Medical College of China Three Gorges University; Yichang China
| | - D. Yuan
- Renhe Hospital of China Three Gorges University; Yichang China
| | - Y. Wang
- LONGHUA Hospital Shanghai University of Traditional Chinese Medicine; Shanghai China
| | - C. Zhang
- Medical College of China Three Gorges University; Yichang China
- LONGHUA Hospital Shanghai University of Traditional Chinese Medicine; Shanghai China
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Abstract
Abstract
In this study thermoplastic polyurethane (TPUs) nanocomposites incorporating carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) were prepared via melt blending and compression molding and CNT dispersion was optimized by using non-covalent surface modification (surfactant). Filler dispersion was further improved by combining two fillers with different geometric shape and aspect ratio in hybrid filler nanocomposites. Synergistic effects were observed in the TPU-GNP-CNT hybrid composites, especially when combining GNP and CNT at a ratio of 6 : 4, showing higher tensile modulus and strength with respect to the systems incorporating individual CNTs and GNPs at the same overall filler concentration. This improvement was attributed to the interaction between CNTs and GNPs limiting GNP aggregation and bridging adjacent graphene platelets thus forming a more efficient network. Hybrid systems also exhibited improved creep resistance and recovery ability. Morphological analysis carried out by scanning electron microscopy (SEM) indicated that the hybrid nanocomposite presented slightly smaller and more homogeneous filler aggregates. The well-dispersed nanofillers also favored higher phase separation in TPU, as indicated by atomic force microscopy (AFM), resulting in a better microstructure able to enhance the load transfer and maximize the mechanical and viscoelastic properties.
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Affiliation(s)
- D. Yuan
- Department of Macromolecular Science and Engineering , Case Western Reserve University, Cleveland (OH) , USA
| | - D. Pedrazzoli
- Department of Macromolecular Science and Engineering , Case Western Reserve University, Cleveland (OH) , USA
| | - I. Manas-Zloczower
- Department of Macromolecular Science and Engineering , Case Western Reserve University, Cleveland (OH) , USA
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Tang S, Yuan D, Zhang Q, Liu Y, Zhang Q, Liu Z, Huang H. Fe-Mn bi-metallic oxides loaded on granular activated carbon to enhance dye removal by catalytic ozonation. Environ Sci Pollut Res Int 2016; 23:18800-18808. [PMID: 27316651 DOI: 10.1007/s11356-016-7030-5] [Citation(s) in RCA: 12] [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: 03/24/2016] [Accepted: 06/02/2016] [Indexed: 06/06/2023]
Abstract
A Fe-Mn bi-metallic oxide supported on granular activated carbon (Fe-Mn GAC) has been fabricated by an impregnation-desiccation method and tested in the catalytic ozonation of methyl orange (MO) degradation and mineralization. X-ray diffraction, scanning electron microscopy, and Fourier transform infrared spectroscopy characterizations revealed that Fe-Mn oxides were successfully loaded and uniformly distributed on the GAC, and nitrogen adsorption isotherms showed that the supported GAC retained a large surface area and a high pore volume compared with the pristine GAC. The catalytic activity was systematically assessed by monitoring the MO removal efficiencies at different operational parameters, such as catalyst dosage, initial solution pH, and ozone flow rate. The Fe-Mn GAC exhibited better catalytic activity relative to ozone alone and GAC alone, improving the TOC removal by 24.5 and 11.5 % and COD removal by 13.6 and 7.3 %, respectively. The reusability of the hybrid was examined over five consecutive cyclic treatments. The Fe-Mn GAC catalytic activity was only a slight loss in the cycles, showing good stability. The addition of Na2CO3 as hydroxyl radicals (•OH) scavengers proved that the catalytic ozonation mechanism was the enhanced generation of •OH by the Fe-Mn GAC. The above results render the Fe-Mn GAC an industrially promising candidate for catalytic ozonation of dye contaminant removal.
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Affiliation(s)
- Shoufeng Tang
- Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Deling Yuan
- Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China.
| | - Qi Zhang
- Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Yameng Liu
- Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Qi Zhang
- Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Zhengquan Liu
- Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Haiming Huang
- Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
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Adikari D, Yuan D, Bing R, Lau J, Ng A, Brieger D, Kritharides L, Yong A. One-year Quality of Life Outcomes After Balloon Aortic Valvuloplasty in High risk Patients With Severe Aortic Stenosis. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Guo JC, Yuan D. [Current situation and thoughts on precision medicine about the treatment of tumor in China]. Zhonghua Wai Ke Za Zhi 2016; 54:485-7. [PMID: 27373471 DOI: 10.3760/cma.j.issn.0529-5815.2016.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
With United States starting"precision medical plan", it is widespread all over the world and opens a new direction to the development of medicine. Our country also starts the plan, trying to take the opportunity. At present, tumor threats human health with high incidence and mortality. In China, the incidence and mortality of tumor has been on the rise.So the tumor has become one of the most important fields of precision medicine.Precision medicine, hoping to reveal the Chinese characteristics of precision medicine, and getting the personal and social maximize health benefits are discussed in the paper.
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Affiliation(s)
- J C Guo
- Department of General Surgery, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Yuan SH, Liang H, Cai MY, Xu F, Yuan D, Zheng XB, Li M, Weng JP. [The influence of patatin-like phospholipase domain-containing protein 3 on palmitic acid-induced hepatocyte apoptosis]. Zhonghua Yi Xue Za Zhi 2016; 96:1535-9. [PMID: 27266503 DOI: 10.3760/cma.j.issn.0376-2491.2016.19.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the influence of patatin-like phospholipase domain-containing protein 3 (PNPLA3) on palmitic acid (PA)-induced hepatocyte apoptosis and its mechanism. METHODS Human hepatocarcinoma cell line HepG2 cells were transfected with PNPLA3(WT)-pcDNA3.1 (PNPLA3(WT) group) and PNPLA3(I148M)-pcDNA3.1 (PNPLA3(I148M) group) plasmids respectively to overexpress wild type or mutant type PNPLA3, and cells transfected with empty vector pcDNA3.1 (NC group) were set as control group.After 24 h PA incubation, Oil red staining was used to determine lipid deposition, and terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling assay (TUNEL) was used to measure apoptosis.Western blot was used to detect the protein level of endoplasmic reticulum (ER) stress and associated apoptosis.Enzyme-linked immunosorbent assay (ELISA) was used to test lysolecithin (LPC) levels in the cellular supernatant. RESULTS After 24 h PA incubation, there was no significant difference in lipid deposition among three groups.Compared to NC group, the cell apoptosis rates of PNPLA3(WT) and PNPLA3(I148M) groups were increased by 2 times and 3 times respectively.The levels of ER stress PRKR-like endoplasmic reticulum kinase (PERK) pathway associated proteins, immunoglobulin-binding protein (BIP), p-PERK, p-eIF2α, and ER stress associated apoptosis pathway proteins, CCAAT/enhancer binding homologous protein (CHOP), p53 upregulated modulator of apoptosis (PUMA), Bax, caspase-3 were higher, and were more significant in PNPLA3(I148M) group.The LPC level in the supernatant of PNPLA3(WT) and PNPLA3(I148M) groups were about 5 times and 1.5 times of NC group respectively after PA incubation. CONCLUSION PNPLA3 may be involved in palmitic acid-induced apoptosis mediated by hepatocyte ER stress through regulating LPC metabolism.
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Affiliation(s)
- S H Yuan
- Department of Endocrinology, Third Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Diabetology, Guangzhou 510630, China
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Qiu J, Li Y, Jiang Z, Yuan D, Ll G, Li Y, Zhang L, Zhao X, Zhou J. Analysis of Road Traffic Injuries by Road User Type in Chongqing, China. HONG KONG J EMERG ME 2016. [DOI: 10.1177/102490791602300104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective Road traffic injuries are caused by many different factors. This study aimed to analyse road user type information in Chongqing, China in order to develop prevention strategies as well as treatment protocols. Methods Data from road traffic crashes from Chongqing, China were collected prospectively over a seven-year period (2000 to 2006). The data included the road user type, description of the injury, mortality and Abbreviated Injury Scale. Prevalence and cross-tabulations were included in the analysis. Results Forty-nine percent of deaths were pedestrians and 27.84% of deaths were drivers. Head injuries (26.49%) of pedestrians were higher than those of drivers and passengers. Thoracic injuries (22.78%) and spinal injuries (4.44%) of injured passengers were higher than those of drivers and pedestrians. There were significant differences in road user types in both injury severity and injury regions. Conclusions The distribution of road traffic injuries in Chongqing, China is different from that in developed countries and other developing countries. In managing traffic injuries, it is necessary to examine other regions besides the head according to the road user type, such as facial injuries of drivers and passengers, and chest and spinal injuries of passengers.
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Affiliation(s)
- J Qiu
- Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Department 4, Institute of Surgery Research, Third Military Medical University, Chongqing 400042, China
| | - Y Li
- Ninth People Hospital of Chongqing, Chongqing 400700
| | - Z Jiang
- Traffic Management Bureau of Public Security, Chongqing 400054, China
| | - D Yuan
- Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Department 4, Institute of Surgery Research, Third Military Medical University, Chongqing 400042, China
| | - G Ll
- Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Department 4, Institute of Surgery Research, Third Military Medical University, Chongqing 400042, China
| | - Y Li
- Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Department 4, Institute of Surgery Research, Third Military Medical University, Chongqing 400042, China
| | - L Zhang
- Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Department 4, Institute of Surgery Research, Third Military Medical University, Chongqing 400042, China
| | - X Zhao
- Traffic Management Bureau of Public Security, Chongqing 400054, China
| | - J Zhou
- Daping Hospital, State Key Laboratory of Trauma, Burns and Combined Injury, Department 4, Institute of Surgery Research, Third Military Medical University, Chongqing 400042, China
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Yuan D, Zhang J, Yan S, Pan C, Alici G, Nguyen NT, Li WH. Dean-flow-coupled elasto-inertial three-dimensional particle focusing under viscoelastic flow in a straight channel with asymmetrical expansion-contraction cavity arrays. Biomicrofluidics 2015; 9:044108. [PMID: 26339309 PMCID: PMC4522007 DOI: 10.1063/1.4927494] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Accepted: 07/14/2015] [Indexed: 05/08/2023]
Abstract
In this paper, 3D particle focusing in a straight channel with asymmetrical expansion-contraction cavity arrays (ECCA channel) is achieved by exploiting the dean-flow-coupled elasto-inertial effects. First, the mechanism of particle focusing in both Newtonian and non-Newtonian fluids was introduced. Then particle focusing was demonstrated experimentally in this channel with Newtonian and non-Newtonian fluids using three different sized particles (3.2 μm, 4.8 μm, and 13 μm), respectively. Also, the effects of dean flow (or secondary flow) induced by expansion-contraction cavity arrays were highlighted by comparing the particle distributions in a single straight rectangular channel with that in the ECCA channel. Finally, the influences of flow rates and distances from the inlet on focusing performance in the ECCA channel were studied. The results show that in the ECCA channel particles are focused on the cavity side in Newtonian fluid due to the synthesis effects of inertial and dean-drag force, whereas the particles are focused on the opposite cavity side in non-Newtonian fluid due to the addition of viscoelastic force. Compared with the focusing performance in Newtonian fluid, the particles are more easily and better focused in non-Newtonian fluid. Besides, the Dean flow in visco-elastic fluid in the ECCA channel improves the particle focusing performance compared with that in a straight channel. A further advantage is three-dimensional (3D) particle focusing that in non-Newtonian fluid is realized according to the lateral side view of the channel while only two-dimensional (2D) particle focusing can be achieved in Newtonian fluid. Conclusively, this novel Dean-flow-coupled elasto-inertial microfluidic device could offer a continuous, sheathless, and high throughput (>10 000 s(-1)) 3D focusing performance, which may be valuable in various applications from high speed flow cytometry to cell counting, sorting, and analysis.
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Affiliation(s)
- D Yuan
- School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong , Wollongong, New South Wales 2522, Australia
| | - J Zhang
- School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong , Wollongong, New South Wales 2522, Australia
| | - S Yan
- School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong , Wollongong, New South Wales 2522, Australia
| | - C Pan
- School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong , Wollongong, New South Wales 2522, Australia
| | - G Alici
- School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong , Wollongong, New South Wales 2522, Australia
| | - N T Nguyen
- Queensland Micro and Nanotechnology Centre, Griffith University , Brisbane, Queensland 4111, Australia
| | - W H Li
- School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong , Wollongong, New South Wales 2522, Australia
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Adikari D, Yuan D, Lau J, Chow V, Chung T, Yong A, Kritharides L, Ng A. The prevalence and incidence of Atrial Fibrillation (AF) in patients with acute Pulmonary Embolism (PE). Heart Lung Circ 2015. [DOI: 10.1016/j.hlc.2015.06.662] [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: 11/16/2022]
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