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Feidenhans'l AA, Regmi YN, Wei C, Xia D, Kibsgaard J, King LA. Precious Metal Free Hydrogen Evolution Catalyst Design and Application. Chem Rev 2024. [PMID: 38661498 DOI: 10.1021/acs.chemrev.3c00712] [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: 04/26/2024]
Abstract
The quest to identify precious metal free hydrogen evolution reaction catalysts has received unprecedented attention in the past decade. In this Review, we focus our attention to recent developments in precious metal free hydrogen evolution reactions in acidic and alkaline electrolyte owing to their relevance to commercial and near-commercial low-temperature electrolyzers. We provide a detailed review and critical analysis of catalyst activity and stability performance measurements and metrics commonly deployed in the literature, as well as review best practices for experimental measurements (both in half-cell three-electrode configurations and in two-electrode device testing). In particular, we discuss the transition from laboratory-scale hydrogen evolution reaction (HER) catalyst measurements to those in single cells, which is a critical aspect crucial for scaling up from laboratory to industrial settings but often overlooked. Furthermore, we review the numerous catalyst design strategies deployed across the precious metal free HER literature. Subsequently, we showcase some of the most commonly investigated families of precious metal free HER catalysts; molybdenum disulfide-based, transition metal phosphides, and transition metal carbides for acidic electrolyte; nickel molybdenum and transition metal phosphides for alkaline. This includes a comprehensive analysis comparing the HER activity between several families of materials highlighting the recent stagnation with regards to enhancing the intrinsic activity of precious metal free hydrogen evolution reaction catalysts. Finally, we summarize future directions and provide recommendations for the field in this area of electrocatalysis.
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Affiliation(s)
- Anders A Feidenhans'l
- Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Yagya N Regmi
- Faculty of Science and Engineering, Manchester Metropolitan University, Manchester M1 5GD, U.K
- Manchester Fuel Cell Innovation Centre, Manchester Metropolitan University, Manchester M1 5GD, U.K
| | - Chao Wei
- Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Dong Xia
- Faculty of Science and Engineering, Manchester Metropolitan University, Manchester M1 5GD, U.K
- Manchester Fuel Cell Innovation Centre, Manchester Metropolitan University, Manchester M1 5GD, U.K
| | - Jakob Kibsgaard
- Department of Physics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Laurie A King
- Faculty of Science and Engineering, Manchester Metropolitan University, Manchester M1 5GD, U.K
- Manchester Fuel Cell Innovation Centre, Manchester Metropolitan University, Manchester M1 5GD, U.K
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Cao L, Xia D, Chen YY, Zhou TF, Yin SH, Liu YH, Li KB, Di B, Zhang ZB, Qin PZ. [The identification of a novel reassortant H3N2 avian influenza virus based on nanopore sequencing technology and genetic characterization]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:574-578. [PMID: 38678355 DOI: 10.3760/cma.j.cn112338-20230828-00105] [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: 04/29/2024]
Abstract
Objective: To identify a novel reassortant H3N2 avian influenza virus using nanopore sequencing technology and analyze its genetic characteristics. Methods: The positive samples of the H3N2 avian influenza virus, collected from the external environment in the farmers' market of Guangzhou, were cultured in chicken embryos. The whole genome was sequenced by targeted amplification and nanopore sequencing technology. The genetic characteristics were analyzed using bioinformatics software. Results: The phylogenetic trees showed that each gene fragment of the strain belonged to the Eurasian evolutionary branch, and the host source was of avian origin. The HA gene was closely related to the origin of the H3N6 virus. The NA gene was closely related to the H3N2 avian influenza virus from 2017 to 2020. The PB1 gene was closely related to the H5N6 avian influenza virus in Guangxi Zhuang Autonomous Region and Fujian Province from 2016 to 2022 and was not related to the PB1 gene of the H5N6 avian influenza epidemic strain in Guangzhou. The other internal gene fragments had complex sources with significant genetic diversity. Molecular characteristics indicated that the strain exhibited the molecular characteristics of a typical low pathogenic avian influenza virus and tended to bind to the receptors of avian origin. On important protein sites related to biological characteristics, this strain had mutations of PB2-L89V, PB1-L473V, NP-A184K, M1-N30D/T215A, and NS1-P42S/N205S. Conclusions: This study identified a novel reassortant H3N2 avian influenza virus by nanopore sequencing, with the PB1 gene derived from the H5N6 avian influenza virus. The virus had a low ability to spread across species, but further exploration was needed to determine whether its pathogenicity to the host was affected.
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Affiliation(s)
- L Cao
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - D Xia
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Y Chen
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - T F Zhou
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - S H Yin
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y H Liu
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - K B Li
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - B Di
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z B Zhang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - P Z Qin
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
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Yu C, Yu Y, Lu Y, Quan K, Mao Z, Zheng Y, Qin L, Xia D. UiO-66/AgNPs Coating for Dental Implants in Preventing Bacterial Infections. J Dent Res 2024:220345241229646. [PMID: 38581213 DOI: 10.1177/00220345241229646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2024] Open
Abstract
Titanium (Ti)-based biomaterials lack inherent antimicrobial activities, and the dental plaque formed on the implant surface is one of the main risk factors for implant infections. Construction of an antibacterial surface can effectively prevent implant infections and enhance implant success. Silver nanoparticles (AgNPs) exhibit broad antibacterial activity and a low tendency to induce drug resistance, but AgNPs easily self-aggregate in the aqueous environment, which significantly impairs their antibacterial activity. In this study, UiO-66/AgNP (U/A) nanocomposite was prepared, where zirconium metal-organic frameworks (UiO-66) were employed as the confinement matrix to control the particle size and prevent aggregation of AgNPs. The bactericidal activity of U/A against methicillin-resistant Staphylococcus aureus and Escherichia coli increased nearly 75.51 and 484.50 times compared with individually synthesized Ag. The antibacterial mechanism can be attributed to the enhanced membrane rupture caused by the ultrafine AgNPs on UiO-66, leading to protein leakage and generation of intracellular reactive oxygen species. Then, U/A was loaded onto Ti substrates (Ti-U/A) by using self-assembly deposition methods to construct an antibacterial surface coating. Ti-U/A exhibited excellent antibacterial activities and desired biocompatibility both in vitro and in vivo. The U/A nanocomposite coating technique is thus expected to be used as a promising surface modification strategy for Ti-based dental implants for preventing dental implant infections.
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Affiliation(s)
- C Yu
- Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing, China
- School of Environmental and Material Engineering, Yantai University, Yantai, Shandong, China
- School of Materials Science and Engineering, Peking University, Beijing, China
| | - Y Yu
- Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing, China
- National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Y Lu
- Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing, China
- National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - K Quan
- School of Materials Science and Engineering, Peking University, Beijing, China
| | - Z Mao
- School of Materials Science and Engineering, Peking University, Beijing, China
| | - Y Zheng
- School of Materials Science and Engineering, Peking University, Beijing, China
| | - L Qin
- School of Environmental and Material Engineering, Yantai University, Yantai, Shandong, China
| | - D Xia
- Department of Dental Materials, Peking University School and Hospital of Stomatology, Beijing, China
- National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
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Chen G, Zhang Q, Xia D. Abdominopelvic desmoplastic small round cell tumor with metastasis: A case report and literature review. Medicine (Baltimore) 2024; 103:e37664. [PMID: 38579065 PMCID: PMC10994471 DOI: 10.1097/md.0000000000037664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 02/29/2024] [Indexed: 04/07/2024] Open
Abstract
RATIONALE Desmoplastic small round cell tumor (DSRCT) is a rare and rapidly metastasizing soft tissue sarcoma, distinguished by its unique cell morphology and pleomorphic differentiation. PATIENT CONCERNS This report describes the case of an 18-year-old male diagnosed with abdominopelvic DSRCT exhibiting metastases to the peritoneum, liver, pleura, bone, and muscle. The patient primarily presented with symptoms of incomplete intestinal obstruction and an abdominal mass. DIAGNOSES Colonoscopy revealed lumen stenosis caused by external compression mass. Contrast-enhanced computed tomography and 18F-fluorodeoxyglucose positron emission tomography/computed tomography revealed multiple lesions in the abdominopelvic cavity. A needle biopsy of an abdominal wall lesion established it as a malignant tumor, origin unknown. Immunohistochemical staining post-surgery showed positive results for Cytokeratin (CK), CK7, Desmin, Vimentin, Caudal type homeobox 2 (CDX2), and Ki-67. Fluorescence in situ hybridization analysis revealed an Ewing sarcoma breakpoint region 1/EWS RNA binding protein 1 (EWSR1) rearrangement, and next-generation sequencing identified an EWSR1-Wilms tumor protein 1 (WT1) gene fusion. INTERVENTIONS The patient underwent laparoscopic exploratory surgery, which encompassed biopsy, ascites drainage, adhesion lysis, reinforcement of weakened sections of the small intestinal walls, and repositioning of twisted intestines. Postoperatively, the treatment protocol included fasting, rehydration, gastrointestinal decompression, and parenteral nutrition. However, the patient did not received chemotherapy. OUTCOMES The patient declined further treatment and deceased in early November. LESSONS This case highlights the nonspecific nature of DSRCT symptoms. In clinical practice, it is crucial to meticulously evaluate unexplained intestinal obstruction in young patients, considering DSRCT as a differential diagnosis to avoid delays in diagnosis.
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Affiliation(s)
- Guoyong Chen
- Department of Clinical Medicine, Southwest Medical University, Luzhou, Sichuan Province, China
| | - Qian Zhang
- Department of Clinical Medicine, Southwest Medical University, Luzhou, Sichuan Province, China
| | - Dong Xia
- Gastrointestinal Group, Department of General Surgery, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, China
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5
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Appelbaum J, Price AE, Oda K, Zhang J, Leung WH, Tampella G, Xia D, So PP, Hilton SK, Evandy C, Sarkar S, Martin U, Krostag AR, Leonardi M, Zak DE, Logan R, Lewis P, Franke-Welch S, Ngwenyama N, Fitzgerald M, Tulberg N, Rawlings-Rhea S, Gardner RA, Jones K, Sanabria A, Crago W, Timmer J, Hollands A, Eckelman B, Bilic S, Woodworth J, Lamble A, Gregory PD, Jarjour J, Pogson M, Gustafson JA, Astrakhan A, Jensen MC. Drug-regulated CD33-targeted CAR T cells control AML using clinically optimized rapamycin dosing. J Clin Invest 2024:e162593. [PMID: 38502193 DOI: 10.1172/jci162593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024] Open
Abstract
Chimeric antigen receptor (CAR) designs that incorporate pharmacologic control are desirable, however designs suitable for clinical translation are needed. We designed a fully human, rapamycin-regulated, drug product for targeting CD33+ tumors called dimerization agent regulated immunoreceptor complex (DARIC33). T cell products demonstrated target specific and rapamycin-dependent cytokine release, transcriptional responses, cytotoxicity, and in vivo antileukemic activity in the presence of as little as 1nM rapamycin. Rapamycin withdrawal paused DARIC33-stimulated T cell effector functions, which were restored following re-exposure to rapamycin, demonstrating reversible effector function control. While rapamycin-regulated DARIC33 T cells were highly sensitive to target antigen, CD34+ stem cell colony forming capacity was not impacted. We benchmarked DARIC33 potency relative to CD19 CAR T cells to estimate a T cell dose for clinical testing. In addition, we integrated in vitro and preclinical in vivo drug concentration thresholds for OFF-ON state transitions, as well as murine and human rapamycin pharmacokinetics, to estimate a clinically applicable rapamycin dosing schedule. A phase 1 DARIC33 trial has been initiated (PLAT-08, NCT05105152), with initial evidence of rapamycin-regulated T cell activation and anti-tumor impact. Our findings provide evidence that the DARIC platform exhibits sensitive regulation and potency needed for clinical application to other important immunotherapy targets.
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Affiliation(s)
- Jacob Appelbaum
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | | | - Kaori Oda
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | - Joy Zhang
- 2seventy bio, Cambridge, United States of America
| | | | - Giacomo Tampella
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | - Dong Xia
- 2seventy bio, Cambridge, United States of America
| | | | | | - Claudya Evandy
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | - Semanti Sarkar
- Seattle Children's Therapeutics, Seattle Children`s Research Institute, Seattle, United States of America
| | - Unja Martin
- 2seventy bio, Cambridge, United States of America
| | | | - Marissa Leonardi
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | - Daniel E Zak
- 2seventy bio, Cambridge, United States of America
| | - Rachael Logan
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | - Paula Lewis
- 2seventy bio, Cambridge, United States of America
| | | | | | - Michael Fitzgerald
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | - Niklas Tulberg
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | - Stephanie Rawlings-Rhea
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | - Rebecca A Gardner
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | - Kyle Jones
- Inhibrx, La Jolla, United States of America
| | | | | | | | | | | | - Sanela Bilic
- Vanadro Consulting, Urbandale, United States of America
| | - Jim Woodworth
- Vanadro Consulting, Urbandale, United States of America
| | - Adam Lamble
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | | | | | - Mark Pogson
- 2seventy bio, Cambridge, United States of America
| | - Joshua A Gustafson
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
| | | | - Michael C Jensen
- Seattle Children's Therapeutics, Seattle Children's Research Institute, Seattle, United States of America
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Li Q, Deng C, Zhou W, Huang P, Lu C, Feng H, Dong L, Tan L, Zhang YW, Zhou C, Qin Y, Xia D. Ultrathin La yCoO x Nanosheets with High Porosity Featuring Boosted Catalytic Oxidation of Benzene: Mechanism Elucidation via an Experiment-Theory Combined Paradigm. Inorg Chem 2024; 63:3974-3985. [PMID: 38346714 DOI: 10.1021/acs.inorgchem.3c04621] [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: 02/27/2024]
Abstract
Designing transition-metal oxides for catalytically removing the highly toxic benzene holds significance in addressing indoor/outdoor environmental pollution issues. Herein, we successfully synthesized ultrathin LayCoOx nanosheets (thickness of ∼1.8 nm) with high porosity, using a straightforward coprecipitation method. Comprehensive characterization techniques were employed to analyze the synthesized LayCoOx catalysts, revealing their low crystallinity, high surface area, and abundant porosity. Catalytic benzene oxidation tests demonstrated that the La0.029CoOx-300 nanosheet exhibited the most optimal performance. This catalyst enabled complete benzene degradation at a relatively low temperature of 220 °C, even under a high space velocity (SV) of 20,000 h-1, and displayed remarkable durability throughout various catalytic assessments, including SV variations, exposure to water vapor, recycling, and long time-on-stream tests. Characterization analyses confirmed the enhanced interactions between Co and doped La, the presence of abundant adsorbed oxygen, and the extensive exposure of Co3+ species in La0.029CoOx-300 nanosheets. Theoretical calculations further revealed that La doping was beneficial for the formation of oxygen vacancies and the adsorption of more hydroxyl groups. These features strongly promoted the adsorption and activation of oxygen, thereby accelerating the benzene oxidation processes. This work underscores the advantages of doping rare-earth elements into transition-metal oxides as a cost-effective yet efficient strategy for purifying industrial exhausts.
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Affiliation(s)
- Qun Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Chunyan Deng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Wenyu Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
- Institute of High Performance Computing (IHPC), Agency of Science, Technology and Research (A*STAR), Singapore 138632, Singapore
| | - Peng Huang
- Henry Royce Institute, The University of Manchester, Manchester M13 9PL, U.K
| | - Chenyang Lu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Haisong Feng
- Institute of High Performance Computing (IHPC), Agency of Science, Technology and Research (A*STAR), Singapore 138632, Singapore
- State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Lichun Dong
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Luxi Tan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Yong-Wei Zhang
- Institute of High Performance Computing (IHPC), Agency of Science, Technology and Research (A*STAR), Singapore 138632, Singapore
| | - Cailong Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Yi Qin
- Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, U.K
| | - Dong Xia
- Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, U.K
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7
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Xia D, Mannering J, Huang P, Xu Y, Li Q, Li H, Qin Y, Kulak AN, Menzel R. Electrothermal Transformations within Graphene-Based Aerogels through High-Temperature Flash Joule Heating. J Am Chem Soc 2024; 146:159-169. [PMID: 38159061 PMCID: PMC10786031 DOI: 10.1021/jacs.3c06349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 01/03/2024]
Abstract
Flash Joule heating of highly porous graphene oxide (GO) aerogel monoliths to ultrahigh temperatures is exploited as a low carbon footprint technology to engineer functional aerogel materials. Aerogel Joule heating to up to 3000 K is demonstrated for the first time, with fast heating kinetics (∼300 K·min-1), enabling rapid and energy-efficient flash heating treatments. The wide applicability of ultrahigh-temperature flash Joule heating is exploited in a range of material fabrication challenges. Ultrahigh-temperature Joule heating is used for rapid graphitic annealing of hydrothermal GO aerogels at fast time scales (30-300 s) and substantially reduced energy costs. Flash aerogel heating to ultrahigh temperatures is exploited for the in situ synthesis of ultrafine nanoparticles (Pt, Cu, and MoO2) embedded within the hybrid aerogel structure. The shockwave heating approach enables high through-volume uniformity of the formed nanoparticles, while nanoparticle size can be readily tuned through controlling Joule-heating durations between 1 and 10 s. As such, the ultrahigh-temperature Joule-heating approach introduced here has important implications for a wide variety of applications for graphene-based aerogels, including 3D thermoelectric materials, extreme temperature sensors, and aerogel catalysts in flow (electro)chemistry.
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Affiliation(s)
- Dong Xia
- School
of Chemistry, University of Leeds, Leeds LS2 9JT, U.K.
| | - Jamie Mannering
- School
of Chemistry, University of Leeds, Leeds LS2 9JT, U.K.
| | - Peng Huang
- Department
of Materials, University of Manchester, Manchester M13 9PL, U.K.
| | - Yifei Xu
- State
Key Laboratory of Molecular Engineering of Polymers, Department of
Macromolecular Science, Fudan University, Shanghai 200438, China
| | - Qun Li
- School
of Chemistry and Chemical Engineering, Chongqing
University, Chongqing 400044, China
| | - Heng Li
- Key
Laboratory of Estuarine Ecological Security and Environmental Health,
Tan Kah Kee College, Xiamen University, Zhangzhou 363105, China
| | - Yi Qin
- Department
of Engineering Science, University of Oxford, Oxford OX1 3PJ, U.K.
| | | | - Robert Menzel
- School
of Chemistry, University of Leeds, Leeds LS2 9JT, U.K.
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Xu Y, Yang Z, Dai T, Xue X, Xia D, Feng Z, Huang J, Chen X, Sun S, Zhou J, Dai Y, Zong J, Li S, Meng Q. Characteristics and time points to inhibit ferroptosis in human osteoarthritis. Sci Rep 2023; 13:21592. [PMID: 38062071 PMCID: PMC10703773 DOI: 10.1038/s41598-023-49089-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 12/04/2023] [Indexed: 12/18/2023] Open
Abstract
Ferroptosis is a form of cell death that is triggered by iron-dependent lipid peroxidation and is closely associated with osteoarthritis. The primary interventions for inhibiting ferroptosis in osteoarthritis are anti-lipid peroxidation and iron chelation. The objective of our study is to investigate the characteristics of ferroptosis in osteoarthritis and identify the optimal time points for inhibiting ferroptosis to alleviate disease progression. Ferroptosis-related alterations and markers of OA were analyzed in paired intact and damaged cartilages from OA patients by immunofluorescence, qRT-PCR, mitochondrial membrane potential and immunohistochemistry. We also compared Ferroptosis-related alterations in cartilage of mild, moderate, and severe OA (according to the modified Mankin score). In addition, we compared the effect of Fer-1 on ferroptosis and the protection of chondrocytes by detecting markers of both ferroptosis and OA by immunofluorescence, CCK8 and qRT-PCR. Ferroptosis-related alterations (GPX4 downregulation, ACSL4 upregulation, MDA, LPO accumulation, Mitochondrial membrane potential decreased) in the damaged area cartilage were more severe than those in the intact area and increased with the progression of OA. Compared with mild OA group, the activity of chondrocytes treated with Fer-1 (a ferroptosis inhibitor) was increased, mitochondrial function was improved, and ferroptosis was reduced (GPX4 upregulation, SLC7A11 upregulation, ACSL4 downregulation,), and promoted the expression of COL2A1 and inhibited the expression of MMP13. However, these changes were not observed in moderate and severe OA chondrocytes. Ferroptosis occurs in a region-specific manner and is exacerbated with the progression of human OA cartilage degeneration. Inhibition of ferroptosis might had a therapeutic effect on chondrocytes with mild OA but had no significant therapeutic effect on chondrocytes with moderate to severe OA.
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Affiliation(s)
- Yangyang Xu
- Guizhou Medical University, Guiyang City, Guizhou Province, China
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Zhenyu Yang
- Jinan University, Guangzhou, Guangdong Province, China
- Xuzhou New Health Hospital, North Hospital of Xuzhou Cancer Hospital, Xuzhou City, Jiangsu Province, China
| | - Tianming Dai
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Xiang Xue
- Jinan University, Guangzhou, Guangdong Province, China
| | - Dong Xia
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Zhencheng Feng
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Jian Huang
- Jinan University, Guangzhou, Guangdong Province, China
| | | | - Shengjie Sun
- Jinan University, Guangzhou, Guangdong Province, China
| | - Jing Zhou
- Department of Ultrasound Medicine, First People's Hospital of Xuzhou City, Xuzhou City, Jiangsu Province, China
| | - Yunmeng Dai
- Guizhou Medical University, Guiyang City, Guizhou Province, China
| | - Jiaqi Zong
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China
| | - Siming Li
- Guizhou Medical University, Guiyang City, Guizhou Province, China.
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China.
| | - Qingqi Meng
- Guangzhou Institute of Traumatic Surgery, Guangzhou Red Cross Hospital of Jinan University, Guangzhou, China.
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9
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Jiang X, Deng S, Lu N, Yao W, Xia D, Tu W, Lei H, Jia P, Gan Y. Fecal microbial composition associated with testosterone in the development of Meishan male pigs. Front Microbiol 2023; 14:1257295. [PMID: 38053550 PMCID: PMC10694212 DOI: 10.3389/fmicb.2023.1257295] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 11/07/2023] [Indexed: 12/07/2023] Open
Abstract
Introduction The gut microbiota closely relates to host health, whereas the relationship between gut microbiota and testosterone during the development of Meishan male pigs remains unclear. This study investigated the fecal microbiota composition and testosterone level during development in Meishan male pigs. Methods Fresh fecal samples of 20 healthy Meishan male pigs were individually collected at 10 and 22 weeks (wk) of age for testosterone content detection and bacteria pyrosequencing analysis. Anaerobic culture experiment of fecal bacteria in vitro was performed for bacteria pyrosequencing analysis. Results The fecal testosterone content increased significantly from 10 weeks (wk) to 22 wk of age (P < 0.05). Meanwhile, the boars at 22 wk had a lower abundance of phylum Bacteroidetes and Proteobacteria, and genus Alloprevotella, Prevotella_1, Prevotellaceae_NK3B31_group, and Streptococcus in the fecal microbiota composition (P < 0.05). but higher proportions of the phylum Actinobacteria, Firmicutes, Kiritimatiellaeota, and Tenericutes, and genus Clostridium_sensu_stricto_1, Muribaculaceae and Terrisporobacter than that at 10 wk (P < 0.05), and the Firmicutes to Bacteroidetes ratio was higher at 22 wk than 10 wk (P < 0.05). Moreover, the fecal testosterone level significantly correlated with the relative abundance of the phylum Actinobacteria, Firmicutes, and Tencuteseri, and genus Alloprevotella, Clostridium_sensu_stricto_1, Muribaculaceae, Prevotella_1 and Streptococcus. Furthermore, the in vitro experiments indicated that the abundance of the phylum Proteobacteria and genus Escherichia-Shigella reduced with the increase of supplemental testosterone level. In contrast, the proportion of Firmicutes phylum increased with additional testosterone levels. Discussion Testosterone could modulate the microflora structure. Meanwhile, the bacteria could degrade the testosterone in a dose testosterone-dependent manner. These results provide us with new insights into the relationship between the gut microbiome and testosterone and the contributions of the gut microbiome in physiological regulation in response to gonad development.
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Affiliation(s)
- Xueyuan Jiang
- Shanghai Engineering Research Center of Breeding Pig, Livestock and Poultry Resources (Pig) Evaluation and Utilization Key Laboratory of Ministry of Agriculture and Rural Affairs, Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Shaoshan Deng
- Shanghai Engineering Research Center of Breeding Pig, Livestock and Poultry Resources (Pig) Evaluation and Utilization Key Laboratory of Ministry of Agriculture and Rural Affairs, Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Naisheng Lu
- Shanghai Engineering Research Center of Breeding Pig, Livestock and Poultry Resources (Pig) Evaluation and Utilization Key Laboratory of Ministry of Agriculture and Rural Affairs, Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Wen Yao
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Dong Xia
- Shanghai Engineering Research Center of Breeding Pig, Livestock and Poultry Resources (Pig) Evaluation and Utilization Key Laboratory of Ministry of Agriculture and Rural Affairs, Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Weilong Tu
- Shanghai Engineering Research Center of Breeding Pig, Livestock and Poultry Resources (Pig) Evaluation and Utilization Key Laboratory of Ministry of Agriculture and Rural Affairs, Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Hulong Lei
- Shanghai Engineering Research Center of Breeding Pig, Livestock and Poultry Resources (Pig) Evaluation and Utilization Key Laboratory of Ministry of Agriculture and Rural Affairs, Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Peng Jia
- Shanghai Engineering Research Center of Breeding Pig, Livestock and Poultry Resources (Pig) Evaluation and Utilization Key Laboratory of Ministry of Agriculture and Rural Affairs, Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai, China
| | - Yeqing Gan
- Meishan Pig Breeding Center of Jiading, Shanghai, China
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10
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Liu PY, Xia D, McGonigle K, Carroll AB, Chiango J, Scavello H, Martins R, Mehta S, Krespan E, Lunde E, LeVine D, Fellman CL, Goggs R, Beiting DP, Garden OA. Immune-mediated hematological disease in dogs is associated with alterations of the fecal microbiota: a pilot study. Anim Microbiome 2023; 5:46. [PMID: 37770990 PMCID: PMC10540429 DOI: 10.1186/s42523-023-00268-2] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 09/20/2023] [Indexed: 09/30/2023] Open
Abstract
BACKGROUND The dog is the most popular companion animal and is a valuable large animal model for several human diseases. Canine immune-mediated hematological diseases, including immune-mediated hemolytic anemia (IMHA) and immune thrombocytopenia (ITP), share many features in common with autoimmune hematological diseases of humans. The gut microbiome has been linked to systemic illness, but few studies have evaluated its association with immune-mediated hematological disease. To address this knowledge gap, 16S rRNA gene sequencing was used to profile the fecal microbiota of dogs with spontaneous IMHA and ITP at presentation and following successful treatment. In total, 21 affected and 13 healthy control dogs were included in the study. RESULTS IMHA/ITP is associated with remodeling of fecal microbiota, marked by decreased relative abundance of the spirochete Treponema spp., increased relative abundance of the pathobionts Clostridium septicum and Escherichia coli, and increased overall microbial diversity. Logistic regression analysis demonstrated that Treponema spp. were associated with decreased risk of IMHA/ITP (odds ratio [OR] 0.24-0.34), while Ruminococcaceae UCG-009 and Christensenellaceae R-7 group were associated with increased risk of disease (OR = 6.84 [95% CI 2-32.74] and 8.36 [95% CI 1.85-71.88] respectively). CONCLUSIONS This study demonstrates an association of immune-mediated hematological diseases in dogs with fecal dysbiosis, and points to specific bacterial genera as biomarkers of disease. Microbes identified as positive or negative risk factors for IMHA/ITP represent an area for future research as potential targets for new diagnostic assays and/or therapeutic applications.
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Affiliation(s)
- P-Y Liu
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Royal College Street, London, NW1 0TU, UK
- School of Medicine, College of Medicine, National Sun Yat-sen University, Kaohsiung, 804201, Taiwan
| | - D Xia
- Department of Pathobiology and Population Sciences, The Royal Veterinary College, Royal College Street, London, NW1 0TU, UK
| | - K McGonigle
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, 3900 Spruce Street, Philadelphia, PA, 19104, USA
| | - A B Carroll
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, 3900 Spruce Street, Philadelphia, PA, 19104, USA
| | - J Chiango
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, 3900 Spruce Street, Philadelphia, PA, 19104, USA
| | - H Scavello
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, 3900 Spruce Street, Philadelphia, PA, 19104, USA
| | - R Martins
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, 3900 Spruce Street, Philadelphia, PA, 19104, USA
| | - S Mehta
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, 380 South University Avenue, Philadelphia, 19104, USA
| | - E Krespan
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, 380 South University Avenue, Philadelphia, 19104, USA
| | - E Lunde
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, 1809 South Riverside Drive, Ames, IA, 50011, USA
| | - D LeVine
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, 1809 South Riverside Drive, Ames, IA, 50011, USA
- Department of Clinical Sciences, College of Veterinary Medicine, Auburn University, 1220 Wire Road, Auburn, AL, 36849, USA
| | - C L Fellman
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA, 01536, USA
| | - R Goggs
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, 930 Campus Road, Box 31, Ithaca, NY, 14853, USA
| | - D P Beiting
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, 380 South University Avenue, Philadelphia, 19104, USA
| | - O A Garden
- Department of Clinical Sciences and Advanced Medicine, School of Veterinary Medicine, University of Pennsylvania, 3900 Spruce Street, Philadelphia, PA, 19104, USA.
- Dean's Office, School of Veterinary Medicine, Louisiana State University, Skip Bertman Drive, Baton Rouge, LA, 70803, USA.
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11
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Zhu Y, Chen Y, Xie D, Xia D, Kuang H, Guo X, Ning B. Macrophages depletion alleviates lung injury by modulating AKT3/GXP4 following ventilator associated pneumonia. Front Immunol 2023; 14:1260584. [PMID: 37731502 PMCID: PMC10507695 DOI: 10.3389/fimmu.2023.1260584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 08/14/2023] [Indexed: 09/22/2023] Open
Abstract
Background AKT3 appears to play a role in lung cancer. However, its role in ventilator-associated pneumonia is still unclear. Therefore, this study aimed to investigate the role of AKT3 in macrophages during ventilator-associated pneumonia. Methods The mRNA level of AKT3, Data from The Cancer Genome Atlas (TCGA), Gene Expression Omnibus (GEO), The data is analyzed using the Xiantao academic analysis tool. Additionally, the roles of AKT3 in ventilator-associated pneumonia (VAP) were investigated through in vivo experiments. Results AKT3 was differentially expressed in various normal and tumor tissues. Functional enrichment analysis indicated the immunomodulatory function and inflammatory response of AKT3 in lung cancer. Depletion of macrophages protected against lung epithelial cells and significantly decreased MMP9, MMP19, FTH, and FTL expression levels and increased GPX4 expression levels, while partially reversing the changes in macrophage. Mechanistically, macrophage depletion attenuates ferroptosis of lung epithelial cells by modulating AKT3 following VAP. Conclusion Collectively, this study suggests the need for further validation of the immunoregulatory function of AKT3 in lung cancer. Additionally, macrophage depletion mitigates lung injury by modulating the AKT3/GPX4 pathway in the context of VAP.
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Affiliation(s)
- Youfeng Zhu
- Department of Intensive Care Unit, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, China
| | - Yang Chen
- Department of Intensive Care Unit, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, China
| | - Di Xie
- Department of Emergency, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dong Xia
- Department of Intensive Care Unit, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, China
| | - Huanming Kuang
- Department of Intensive Care Unit, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, China
| | - Xinmin Guo
- Department of Ultrasonography, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, China
| | - Bo Ning
- Department of Neurosurgery, Guangzhou Red Cross Hospital, Jinan University, Guangzhou, Guangdong, China
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12
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Li Q, Zhou W, Deng C, Lu C, Huang P, Xia D, Tan L, Zhou C, Zhang YW, Dong L. Hydroxyl-Decorated Pt as a Robust Water-Resistant Catalyst for Catalytic Benzene Oxidation. Inorg Chem 2023; 62:13544-13553. [PMID: 37561968 DOI: 10.1021/acs.inorgchem.3c01979] [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: 08/12/2023]
Abstract
In catalytic oxidation reactions, the presence of environmental water poses challenges to the performance of Pt catalysts. This study aims to overcome this challenge by introducing hydroxyl groups onto the surface of Pt catalysts using the pyrolysis reduction method. Two silica supports were employed to investigate the impact of hydroxyl groups: SiO2-OH with hydroxyl groups and SiO2-C without hydroxyl groups. Structural characterization confirmed the presence of Pt-Ox, Pt-OHx, and Pt0 species in the Pt/SiO2-OH catalysts, while only Pt-Ox and Pt0 species were observed in the Pt/SiO2-C catalysts. Catalytic performance tests demonstrated the remarkable capacity of the 0.5 wt % Pt/SiO2-OH catalyst, achieving complete conversion of benzene at 160 °C under a high space velocity of 60,000 h-1. Notably, the catalytic oxidation capacity of the Pt/SiO2-OH catalyst remained largely unaffected even in the presence of 10 vol % water vapor. Moreover, the catalyst exhibited exceptional recyclability and stability, maintaining its performance over 16 repeated cycles and a continuous operation time of 70 h. Theoretical calculations revealed that the construction of Pt-OHx sites on the catalyst surface was beneficial for modulating the d-band structure, which in turn enhanced the adsorption and activation of reactants. This finding highlights the efficacy of decorating the Pt surface with hydroxyl groups as an effective strategy for improving the water resistance, catalytic activity, and long-term stability of Pt catalysts.
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Affiliation(s)
- Qun Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Wenyu Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
- Institute of High Performance Computing (IHPC), Agency of Science, Technology and Research (A*STAR), Singapore 138632, Singapore
| | - Chunyan Deng
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Chenyang Lu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Peng Huang
- Department of Materials, The University of Manchester, Manchester M13 9PL, U.K
| | - Dong Xia
- Manchester Fuel Cell Innovation Centre, Department of Natural Sciences, Manchester Metropolitan University, Manchester M15 6BH, U.K
| | - Luxi Tan
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Cailong Zhou
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Yong-Wei Zhang
- Institute of High Performance Computing (IHPC), Agency of Science, Technology and Research (A*STAR), Singapore 138632, Singapore
| | - Lichun Dong
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
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13
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Cao R, Du Y, Tong J, Xia D, Song Q, Xia Z, Liu M, Du H, Han J, Gao C. Influence of COVID-19 pandemic on the virus spectrum in children with respiratory infection in Xuzhou, China: a long-term active surveillance study from 2015 to 2021. BMC Infect Dis 2023; 23:467. [PMID: 37442963 DOI: 10.1186/s12879-023-08247-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/12/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND To investigate the impact of the coronavirus disease 2019 (COVID-19) outbreak on the prevalence of respiratory viruses among pediatric patients with acute respiratory infections in Xuzhou from 2015-2021. METHODS Severe acute respiratory infection (SARI) cases in hospitalized children were collected from 2015-2021 in Xuzhou, China. Influenza virus(IFV), respiratory syncytial virus (RSV), human parainfluenza virus type 3(hPIV-3), human rhinovirus (hRV), human adenovirus(hAdV), human coronavirus(hCoV) were detected by real-time fluorescence polymerase chain reaction(RT-qPCR), and the results were statistically analyzed by SPSS 23.0 software. RESULTS A total of 1663 samples with SARI were collected from 2015-2021, with a male-to-female ratio of 1.67:1 and a total virus detection rate of 38.5% (641/1663). The total detection rate of respiratory viruses decreased from 46.2% (2015-2019) to 36% (2020-2021) under the control measures for COVID-19 (P < 0.01). The three viruses with the highest detection rates changed from hRV, RSV, and hPIV-3 to hRV, RSV, and hCoV. The epidemic trend of hPIV-3 and hAdV was upside down before and after control measures(P < 0.01); however, the epidemic trend of RV and RSV had not changed from 2015 to 2021(P > 0.05). After the control measures, the detection rate of hPIV-3 decreased in all age groups, and the detection rate of hCoV increased in all except the 1 ~ 3 years old group. CONCLUSIONS Implementing control measures for COVID-19 outbreak curbed the spread of respiratory viruses among children as a whole. However, the epidemic of RV and RSV was not affected by the COVID-19 control policy.
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Affiliation(s)
- Rundong Cao
- Center for Viral Resource, Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, 102206, China
| | - Yangguang Du
- Xuzhou Center for Disease Control and Prevention, Xuzhou, 221002, China
| | - Jing Tong
- Xuzhou Center for Disease Control and Prevention, Xuzhou, 221002, China
| | - Dong Xia
- Center for Viral Resource, Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, 102206, China
| | - Qinqin Song
- Center for Viral Resource, Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, 102206, China
| | - Zhiqiang Xia
- Center for Viral Resource, Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, 102206, China
| | - Mi Liu
- Center for Viral Resource, Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, 102206, China
| | - Haijun Du
- Center for Viral Resource, Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, 102206, China
| | - Jun Han
- Center for Viral Resource, Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, 102206, China.
| | - Chen Gao
- Center for Viral Resource, Chinese Center for Disease Control and Prevention, National Institute for Viral Disease Control and Prevention, Beijing, 102206, China.
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14
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Billows N, Phelan JE, Xia D, Peng Y, Clark TG, Chang YM. Feature Weighted Models (FWM) to address lineage dependency in drug-resistance prediction from Mycobacterium tuberculosis genome sequences. Bioinformatics 2023:btad428. [PMID: 37428143 PMCID: PMC10351970 DOI: 10.1093/bioinformatics/btad428] [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] [Received: 02/27/2023] [Revised: 06/19/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
MOTIVATION Tuberculosis (TB) is caused by members of the Mycobacterium tuberculosis complex (MTBC), which has a strain- or lineage-based clonal population structure. The evolution of drug-resistance in the MTBC poses a threat to successful treatment and eradication of TB. Machine learning approaches are being increasingly adopted to predict drug-resistance and characterise underlying mutations from whole genome sequences. However, such approaches may not generalise well in clinical practice due to confounding from the population structure of the MTBC. RESULTS To investigate how population structure affects machine learning prediction, we compared three different approaches to reduce lineage dependency in random forest (RF) models, including stratification, feature selection and feature weighted models. All RF models achieved moderate-high performance (AUC-ROC range: 0.60-0.98). First-line drugs had higher performance than second-line drugs, but it varied depending on the lineages in the training dataset. Lineage-specific models generally had higher sensitivity than global models which may be underpinned by strain-specific drug-resistance mutations or sampling effects. The application of feature weights and feature selection approaches reduced lineage dependency in the model and had comparable performance to unweighted RF models. AVAILABILITY AND IMPLEMENTATION https://github.com/NinaMercedes/RF_lineages. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Nina Billows
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
- Alan Turing Institute, British Library, London, UK
| | - Jody E Phelan
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - Dong Xia
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
| | - Yonghong Peng
- Department of Computing and Mathematics, Manchester Metropolitan University, Manchester, UK
| | - Taane G Clark
- Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
- Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Yu-Mei Chang
- Department of Comparative Biomedical Sciences, Royal Veterinary College, London, UK
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15
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Xia D, Li H, Li T, Ma H. Isoselective Polymerization of rac-Lactide by Magnesium Initiators Bearing Achiral Di(2-pyridyl)methyl Substituted Aminophenolate Ligands. Inorg Chem 2023. [PMID: 37377247 DOI: 10.1021/acs.inorgchem.3c01398] [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: 06/29/2023]
Abstract
Reactions of achiral di(2-pyridyl)methyl substituted aminophenols L1-6H (2-{N-R3-N-[di(2-pyridyl)methyl]aminomethyl}-4-R1-6-R2-C6H2OH: R1 = R2 = tBu, R3 = nBu (L1H), R3 = nhexyl (L2H), R3 = cyclohexyl (L3H); R1 = R2 = cumyl, R3 = nBu (L4H), R3 = nhexyl (L5H), R3 = cyclohexyl (L6H)) with {Mg[N(SiMe3)2]2}2 ([L1-6H]:[Mg] = 1:1) afforded a series of magnesium silylamido complexes 1-6. In the solid state, the magnesium center of 3, 4, and 6 is penta-coordinated by the tetradentate aminophenloate ligand and one silylamido ligand to form a seriously distorted square-pyramidal geometry as confirmed by X-ray crystallography diffraction analysis. VT 1H NMR and ROESY experiments further indicate that these magnesium complexes are also five-coordinated in solutions where the coordination of either of the two pyridyl pendants to the magnesium center is maintained. Complexes 1-6 are highly active toward the ring-opening polymerization of rac-lactide (rac-LA) at r.t. both in toluene and in tetrahydrofuran, capable of polymerizing 500 equiv of monomer to high conversions just within minutes. Among them, complex 3 exhibited the highest iso-stereoselectivity, affording moderately isotactic polylactide in toluene (Pm = 0.75). It is found that the isoselectivities and activities of these magnesium complexes toward the polymerization of rac-LA are closely associated with the substituents at the ortho-position of the phenoxide unit and on the skeleton nitrogen atom of the ligand. On the basis of NMR spectroscopic studies, the formation of isotactic PLAs with dominant stereoblock sequences was witnessed by using these magnesium complexes as initiators, and the inequivalent coordination of two pyridyl pendant arms in these magnesium complexes might be the source of exerting isoselective control.
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Affiliation(s)
- Dong Xia
- Shanghai Key Laboratory of Functional Materials Chemistry and Laboratory of Organometallic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Hehua Li
- Shanghai Key Laboratory of Functional Materials Chemistry and Laboratory of Organometallic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Tang Li
- Shanghai Key Laboratory of Functional Materials Chemistry and Laboratory of Organometallic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Haiyan Ma
- Shanghai Key Laboratory of Functional Materials Chemistry and Laboratory of Organometallic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
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16
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Shen C, Ying XR, Wu GF, Xia D. [Three cases of primary small cell neuroendocrine carcinoma of the upper urinary tract and review of the literature]. Zhonghua Zhong Liu Za Zhi 2023; 45:525-529. [PMID: 37355472 DOI: 10.3760/cma.j.cn112152-20220331-00221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/26/2023]
Affiliation(s)
- C Shen
- Department of Urology, Shaoxing People's Hospital, Shaoxing 312000, China
| | - X R Ying
- Department of Urology, Shaoxing People's Hospital, Shaoxing 312000, China
| | - G F Wu
- Department of Urology, Shaoxing People's Hospital, Shaoxing 312000, China
| | - D Xia
- Department of Urology, the First Affiliated Hospital of Zhejiang University, Hangzhou 310000, China
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17
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Irving JR, Hiron TK, Davison LJ, Xia D, Beck S, Werling D, Williams J. Characterization of canine intestinal microRNA expression in inflammatory bowel disease and T-cell lymphoma. J Comp Pathol 2023; 204:23-29. [PMID: 37329660 DOI: 10.1016/j.jcpa.2023.03.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/16/2023] [Accepted: 03/30/2023] [Indexed: 06/19/2023]
Abstract
Differentiating between canine inflammatory bowel disease (IBD) and intestinal T-cell lymphoma by histopathological examination of endoscopically-derived intestinal biopsies can be challenging and involves an invasive procedure requiring specialized equipment and training. A rapid, non-invasive method of diagnosis, such as blood or faecal analysis for a conserved and stable biomarker, would be a useful adjunct or replacement. Studies on dogs and humans with various types of lymphoma have shown altered microRNA (miRNA) expression patterns in blood, faeces and tissues indicating their potential use as biomarkers of disease. The present study used residual archived endoscopically-derived, formalin-fixed, paraffin-embedded (FFPE) duodenal tissue taken from pet dogs undergoing routine investigation of gastrointestinal disease. The dogs had previously been diagnosed with either normal/minimal intestinal inflammation, severe IBD or intestinal T-cell lymphoma. Next generation sequencing with qPCR validation was used to elucidate differentially expressed miRNAs between groups. Our results show that miRNA can be extracted from archived endoscopically-derived FFPE tissues from the canine duodenum and used to differentiate normal/minimally inflamed canine duodenal tissue from severe lymphoplasmacytic IBD and T-cell lymphoma.
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Affiliation(s)
- Jennifer R Irving
- Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK
| | - Thomas K Hiron
- Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK; Department of Clinical Science and Services, Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK
| | - Lucy J Davison
- Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK; Department of Clinical Science and Services, Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK
| | - Dong Xia
- Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK
| | - Samuel Beck
- VPG Histology, Horner Court, 637 Gloucester Road, Horfield, Bristol BS7 0BJ, UK
| | - Dirk Werling
- Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK
| | - Jonathan Williams
- Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead Lane, Hatfield, Hertfordshire AL9 7TA, UK.
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18
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Wang R, Zong K, Song J, Song Q, Xia D, Liu M, Du H, Xia Z, Yao H, Han J. Inhibitor of CD147 Suppresses T Cell Activation and Recruitment in CVB3-Induced Acute Viral Myocarditis. Viruses 2023; 15:v15051137. [PMID: 37243223 DOI: 10.3390/v15051137] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Viral myocarditis (VMC) is a common disease characterized by cardiac inflammation. AC-73, an inhibitor of CD147, disrupts the dimerization of CD147, which participates in the regulation of inflammation. To explore whether AC-73 could alleviate cardiac inflammation induced by CVB3, mice were injected intraperitoneally with AC-73 on the fourth day post-infection (dpi) and sacrificed on the seventh dpi. Pathological changes in the myocardium, T cell activation or differentiation, and expression of cytokines were analyzed using H&E staining, flow cytometry, fluorescence staining and multiplex immunoassay. The results showed that AC-73 alleviated cardiac pathological injury and downregulated the percentage of CD45+CD3+ T cells in the CVB3-infected mice. The administration of AC-73 reduced the percentage of activated CD4+ and CD8+ T cells (CD69+ and/or CD38+) in the spleen, while the percentage of CD4+ T cell subsets in the spleen was not changed in the CVB3-infected mice. In addition, the infiltration of activated T cells (CD69+) and macrophages (F4/80+) in the myocardium also decreased after the AC-73 treatment. The results also showed that AC-73 inhibited the release of many cytokines and chemokines in the plasma of the CVB3-infected mice. In conclusion, AC-73 mitigated CVB3-induced myocarditis by inhibiting the activation of T cells and the recruitment of immune cells to the heart. Thus, CD147 may be a therapeutic target for virus-induced cardiac inflammation.
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Affiliation(s)
- Ruifang Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd., Beijing 102206, China
| | - Kexin Zong
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd., Beijing 102206, China
| | - Juan Song
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd., Beijing 102206, China
| | - Qinqin Song
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd., Beijing 102206, China
| | - Dong Xia
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd., Beijing 102206, China
| | - Mi Liu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd., Beijing 102206, China
| | - Haijun Du
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd., Beijing 102206, China
| | - Zhiqiang Xia
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd., Beijing 102206, China
| | - Hailan Yao
- Department of Biochemistry & Immunology, Capital Institute of Pediatrics, YaBao Rd., Beijing 100020, China
| | - Jun Han
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, 155 Changbai Rd., Beijing 102206, China
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Lei H, Du Q, Lu N, Jiang X, Li M, Xia D, Long K. Comparison of the Microbiome-Metabolome Response to Copper Sulfate and Copper Glycinate in Growing Pigs. Animals (Basel) 2023; 13:ani13030345. [PMID: 36766234 PMCID: PMC9913561 DOI: 10.3390/ani13030345] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
This study aims to compare the fecal microbiome-metabolome response to copper sulfate (CuSO4) and copper glycinate (Cu-Gly) in pigs. Twelve Meishan gilts were allocated into the CuSO4 group and the Cu-Gly group (fed on a basal diet supplemented with 60 mg/kg copper from CuSO4 or Cu-Gly) paired in litter and body weight. After a two-week feeding trial, the Cu-Gly group had a higher copper digestibility, blood hemoglobin, and platelet volume and higher levels of plasma iron and insulin-like growth factor-1 than the CuSO4 group. The Cu-Gly treatment increased the abundance of the Lachnospiraceae family and the genera Lachnospiraceae XPB1014, Corprococcus_3, Anaerorhabdus_furcosa_group, Lachnospiraceae_FCS020_group, and Lachnospiraceae_NK4B4_group and decreased the abundance of the Synergistetes phylum and Peptostreptococcaceae family compared to the CuSO4 treatment. Moreover, the Cu-Gly group had a lower concentration of 20-Oxo-leukotriene E4 and higher concentrations of butyric acid, pentanoic acid, isopentanoic acid, coumarin, and Nb-p-Coumaroyl-tryptamine than the CuSO4 group. The abundance of Synergistetes was positively correlated with the fecal copper content and negatively correlated with the fecal butyric acid content. The abundance of the Lachnospiraceae_XPB1014_group genus was positively correlated with the plasma iron level and fecal contents of coumarin and butyric acid. In conclusion, Cu-Gly and CuSO4 could differentially affect fecal microbiota and metabolites, which partially contributes to the intestinal health of pigs in different manners.
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Affiliation(s)
- Hulong Lei
- Key Laboratory of Livestock and Poultry Resources (Pig) Evaluation and Utilization of Ministry of Agriculture and Rural Affairs, Shanghai Engineering Research Center of Breeding Pig, Institute of Animal Husbandry & Veterinary Sciences, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Qian Du
- Key Laboratory of Livestock and Poultry Resources (Pig) Evaluation and Utilization of Ministry of Agriculture and Rural Affairs, Shanghai Engineering Research Center of Breeding Pig, Institute of Animal Husbandry & Veterinary Sciences, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Naisheng Lu
- Key Laboratory of Livestock and Poultry Resources (Pig) Evaluation and Utilization of Ministry of Agriculture and Rural Affairs, Shanghai Engineering Research Center of Breeding Pig, Institute of Animal Husbandry & Veterinary Sciences, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Xueyuan Jiang
- Key Laboratory of Livestock and Poultry Resources (Pig) Evaluation and Utilization of Ministry of Agriculture and Rural Affairs, Shanghai Engineering Research Center of Breeding Pig, Institute of Animal Husbandry & Veterinary Sciences, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
| | - Mingzhou Li
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
| | - Dong Xia
- Key Laboratory of Livestock and Poultry Resources (Pig) Evaluation and Utilization of Ministry of Agriculture and Rural Affairs, Shanghai Engineering Research Center of Breeding Pig, Institute of Animal Husbandry & Veterinary Sciences, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China
- Correspondence: (D.X.); (K.L.)
| | - Keren Long
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China
- Correspondence: (D.X.); (K.L.)
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Lyu Z, Xia D, Zhang Y. Latent Space Model for Higher-order Networks and Generalized Tensor Decomposition. J Comput Graph Stat 2023. [DOI: 10.1080/10618600.2022.2164289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zhongyuan Lyu
- Department of Mathematics, Hong Kong University of Science and Technology
| | - Dong Xia
- Department of Mathematics, Hong Kong University of Science and Technology
| | - Yuan Zhang
- Department of Statistics, Ohio State University
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21
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Zhang Z, Zhou J, Xia D, Wang Z. Editorial: Association between oral microbiota dysbiosis and the development of systemic conditions. Front Cell Infect Microbiol 2023; 13:1204103. [PMID: 37143742 PMCID: PMC10152363 DOI: 10.3389/fcimb.2023.1204103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 04/13/2023] [Indexed: 05/06/2023] Open
Affiliation(s)
- Zheng Zhang
- Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin, China
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin, China
- *Correspondence: Zuomin Wang, ; Dong Xia, ; Zheng Zhang,
| | - Jian Zhou
- The School and Hospital of Stomatology, Capital Medical University, Beijing, China
| | - Dong Xia
- Royal Veterinary College, University of London, London, United Kingdom
- *Correspondence: Zuomin Wang, ; Dong Xia, ; Zheng Zhang,
| | - Zuomin Wang
- Department of Stomatology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- *Correspondence: Zuomin Wang, ; Dong Xia, ; Zheng Zhang,
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Xu L, Wan Y, Shi X, Xia D, Bu X, Sun P, Wang G, Han L, Wei T. Severe Anemia Observed in a Chinese Patient with COVID-19 and Plasmodium Falciparum Malaria Co-Infection. Clin Lab 2023; 69. [PMID: 36649509 DOI: 10.7754/clin.lab.2022.220402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND COVID-19 and malaria share some similar symptoms such as fever, difficulty in breathing, fatigue, and headaches of acute onset. With overlapping symptoms and travel history significant for COVID-19 and malaria, healthcare systems and professionals will face a great challenge in the case of COVID-19 and malaria co-infection. METHODS Here we presented a patient with COVID-19 infection and refractory anemia of unknown reason. A diagnostic test for malaria was later performed. RESULTS The patient was ultimately diagnosed with COVID-19 and plasmodium falciparum malaria co-infection. He recovered gradually after receiving anti-malaria treatment. CONCLUSIONS The present case highlights the danger of focusing only on a diagnosis of COVID-19, reminding clinicians to be vigilant about the possibility of co-infections.
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Xia L, Zhao BQ, Luo T, Xu W, Guo T, Xia D. Microbial functional diversity in rhizosphere and non-rhizosphere soil of different dominant species in a vegetation concrete slope. BIOTECHNOL BIOTEC EQ 2022. [DOI: 10.1080/13102818.2022.2082319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Lu Xia
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, Three Gorges University, Yichang, Hubei, PR China
- College of Civil Engineering and Architecture, Three Gorges University, Yichang, Hubei, PR China
| | - Bin Qing Zhao
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, Three Gorges University, Yichang, Hubei, PR China
- College of Civil Engineering and Architecture, Three Gorges University, Yichang, Hubei, PR China
| | - Ting Luo
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, Three Gorges University, Yichang, Hubei, PR China
- College of Civil Engineering and Architecture, Three Gorges University, Yichang, Hubei, PR China
| | - Wennian Xu
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, Three Gorges University, Yichang, Hubei, PR China
- College of Civil Engineering and Architecture, Three Gorges University, Yichang, Hubei, PR China
- College of Hydraulic and Environmental Engineering, Three Gorges University, Yichang, Hubei, PR China
- College of Biology and Pharmaceutical Sciences, Three Gorges University, Yichang, Hubei, PR China
| | - Ting Guo
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, Three Gorges University, Yichang, Hubei, PR China
- College of Biology and Pharmaceutical Sciences, Three Gorges University, Yichang, Hubei, PR China
| | - Dong Xia
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, Three Gorges University, Yichang, Hubei, PR China
- College of Hydraulic and Environmental Engineering, Three Gorges University, Yichang, Hubei, PR China
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Jia Y, Bai Y, Xia D, Li F, Liang B. Energy Dissipation and Damage Evolution during Dynamic Fracture of Muddy Siltstones Containing Initial Damage under the Freeze Thaw Effect. Materials (Basel) 2022; 16:120. [PMID: 36614459 PMCID: PMC9820996 DOI: 10.3390/ma16010120] [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] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
This research aims to evaluate the influences of the freeze-thaw (F-T) effect on the energy dissipation mechanism and damage evolution characteristics of muddy siltstones containing initial damage. At first, four initial damage levels were achieved by applying different impact loads to the intact rock, and the damage stresses for levels I, II, III, and IV initial damage were 9.80 Mpa, 17.00 Mpa, 23.34 Mpa, and 32.54 Mpa, respectively. Then dynamic compression tests were conducted on the muddy siltstones containing initial damage after 0, 5, 10, 15, 20, 25, 30, and 40 F-T cycles in the temperature range from -20 to 20 °C. The damage variable of the muddy siltstones was determined by studying energy distribution during fracture of the rock. The damage evolution characteristics of the muddy siltstone containing initial damage under the F-T effect were explored combined with the fractal theory. Test results show that (1) the dynamic compressive strength of the muddy siltstones decreases exponentially with the increasing number of F-T cycles; the dynamic compressive strength of muddy siltstone with different initial damage decreased by 54.9%, 48.4%, 39.4%, 42.5%, and 44.5% after 40 freeze-thaws, respectively, compared with that of intact. (2) The absorbed energy, reflected energy, and transmitted energy of the muddy siltstones subject to different levels of initial damage exhibit step-like changes under the effect of F-T cycles and the rate of decrease in absorbed energy decreases in the late stage of F-T cycles. (3) Both the damage variable and the fractal dimension of the muddy siltstones show an increasing trend with an increase in the number of F-T cycles, and it is more difficult for damage to become superimposed as the damage accumulates to that range causing fatigue (the damage variables ranged from 0.73 to 0.97) while the fractal dimension of the fracture surfaces in the rock still increases. (4) With the gradual increase in the damage variable, the energy absorption density of the rock is negatively correlated with the fractal dimension of the rock fragments.
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Affiliation(s)
- Yufei Jia
- College of Mining Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Yuxin Bai
- College of Mining Engineering, North China University of Science and Technology, Tangshan 063210, China
| | - Dong Xia
- College of Mining Engineering, North China University of Science and Technology, Tangshan 063210, China
- Hebei Province Mining Industry Development with Safe Technology Priority Laboratory, North China University of Science and Technology, Tangshan 063210, China
- Hebei Industrial Technology Institute of Mine Ecological Remediation, North China University of Science and Technology, Tangshan 063210, China
| | - Fuping Li
- College of Mining Engineering, North China University of Science and Technology, Tangshan 063210, China
- Hebei Province Mining Industry Development with Safe Technology Priority Laboratory, North China University of Science and Technology, Tangshan 063210, China
- Hebei Industrial Technology Institute of Mine Ecological Remediation, North China University of Science and Technology, Tangshan 063210, China
| | - Bing Liang
- College of Mining Engineering, North China University of Science and Technology, Tangshan 063210, China
- Hebei Province Mining Industry Development with Safe Technology Priority Laboratory, North China University of Science and Technology, Tangshan 063210, China
- Hebei Industrial Technology Institute of Mine Ecological Remediation, North China University of Science and Technology, Tangshan 063210, China
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Li J, Hou X, Jiang L, Xia D, Chen A, Li S, Li Q, Gu X, Mo X, Zhang Z. Optimization and characterization of Sichuan pepper (Zanthoxylum bungeanum Maxim) resin microcapsule encapsulated with β-cyclodextrin. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.114120] [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: 11/08/2022]
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Luo T, Liu W, Xia D, Xia L, Guo T, Ma Y, Xu W, Hu Y. Effects of land use types on soil erodibility in a small karst watershed in western Hubei. PeerJ 2022; 10:e14423. [PMID: 36518298 PMCID: PMC9744158 DOI: 10.7717/peerj.14423] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/29/2022] [Indexed: 12/03/2022] Open
Abstract
Background Soil erosion is a severe problem in the karst watershed, and analysis of soil erosion at the watershed scale is urgently needed. Methods This study tried to estimate the soil erodibility factor (K-factor) using the Erosion Productivity Impact Calculator (EPIC) nomograph and evaluate the spatial distribution of the predicted K-factor in a karst watershed. Soil properties and K-factors of five land use types (NF: natural mixed forest, CF: cypress forest, EF: economic forest, ST: stone dike terrace, VF: vegetable land) in the Xialaoxi small watershed were compared and key factors affecting erodibility were analyzed. Results Results showed that (1) The erodibility K-factor was unevenly distributed within different site types and strongly influenced by anthropogenic activities. The soil K-factors of sample sites subjected to frequent human disturbance (ST, VF) were high, ranging from 0.0480-0.0520 t hm2 h/(MJ mm hm2), while the soil K-factors of natural site types (NF, CF, and EF) were low, ranging from 0.0436-0.0448 t hm2 h/(MJ mm hm2). (2) The soil texture in the Xialaoxi watershed was mostly loamy, and that of the agricultural areas frequently disturbed by agricultural practices (ST, VF) was silty loam. (3) Soil carbon fractions were affected by land use types. Soil organic carbon storage of NF and CF had strong spatial heterogeneity. The soil organic carbon (SOC) and labile organic carbon (LOC) of the two were significantly higher than those of the disturbed EF and cultivated land soil. (4) There was a synergistic effect between the soil properties and the K-factor. K was significantly negatively related to sand fractions (2-0.05 mm) and non-capillary porosity, while positively related to silt content (0.05-0.002 mm). Overall, changes in bulk density (BD), total porosity (TP), non-capillary porosity (NCP), texture, and organic matter content caused by natural restoration or anthropogenic disturbance were the main reasons for soil erodibility. Natural care (sealing) and construction of stone dike planting practices were effective ways to reduce soil erosion in small karst watershed areas of western Hubei.
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Affiliation(s)
- Ting Luo
- China Three Gorges University, Hubei Provincial Engineering Research Center of Slope Habitat Construction Technology Using Cement-based Materials, Yichang, Hubei, China
| | - Wenjing Liu
- China Three Gorges University, Hubei Provincial Engineering Research Center of Slope Habitat Construction Technology Using Cement-based Materials, Yichang, Hubei, China
| | - Dong Xia
- Ministry of Natural Resources, Key Laboratory of Urban Land Resources Monitoring and Simulation, Guangdong, Shenzhen, China
| | - Lu Xia
- China Three Gorges University, Hubei Provincial Engineering Research Center of Slope Habitat Construction Technology Using Cement-based Materials, Yichang, Hubei, China
| | - Ting Guo
- China Three Gorges University, Hubei Provincial Engineering Research Center of Slope Habitat Construction Technology Using Cement-based Materials, Yichang, Hubei, China
| | - Yueyang Ma
- China Three Gorges University, Hubei Provincial Engineering Research Center of Slope Habitat Construction Technology Using Cement-based Materials, Yichang, Hubei, China
| | - Wennian Xu
- China Three Gorges University, Hubei Provincial Engineering Research Center of Slope Habitat Construction Technology Using Cement-based Materials, Yichang, Hubei, China
| | - Yue Hu
- China Three Gorges University, College of Art, Yichang, Hubei, China
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Shu Q, Xia D, Ma Y, Zhang Y, Luo T, Ma J, Liu F, Yan S, Liu D. Response of physiological characteristics of ecological restoration plants to substrate cement content under exogenous arbuscular mycorrhizal fungal inoculation. Front Plant Sci 2022; 13:1028553. [PMID: 36507450 PMCID: PMC9728102 DOI: 10.3389/fpls.2022.1028553] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 11/03/2022] [Indexed: 06/17/2023]
Abstract
INTRODUCTION In order to solve the inhibition of alkaline environment on plants growth at the initial stage of Eco-restoration of vegetation concrete technology, introducing AMF into vegetation concrete substrate is an effective solution. METHODS In this study, Glomus mosseae (GM), Glomus intraradices (GI) and a mixture of two AMF (MI) were used as exogenous inoculation agents. Festuca elata and Cassia glauca were selected as host plants to explore the relationship between the physiological characteristics of plants and the content of substrate cement under exogenous inoculation of AMF. RESULTS The experiment showed that, for festuca elata, the maximum mycorrhizal infection rates of inoculation with GM, MI were when the cement contents ranged 5-8% and that of GI inoculation was with the cement contents ranging 5-10%. Adversely, for Cassia glauca, substrate cement content had little effect on the root system with the exogenous inoculation of AMF. Compared with CK, the effects of AMF inoculation on the physiological characteristics of the two plants were different. When the cement content was the highest (10% and 8% respectively), AMF could significantly increase(p<0.05) the intercellular CO2 concentration (Ci) of Festuca elata. Moreover, for both plants, single inoculation was more effective than mixed inoculation. When the cement content was relatively low, the physiological characteristics of Cassia glauca were promoted more obviously by the inoculation of GI. At higher cement content level, inoculation of GM had a better effect on the physiological characteristics of the two plants. CONCLUSION The results suggest that single inoculation of GM should be selected to promote the growth of Festuca elata and Cassia glauca in higher alkaline environment.
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Affiliation(s)
- Qian Shu
- College of Biological & Pharmaceutical Sciences, China Three Gorges University, Yichang, China
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, China Three Gorges University, Key Laboratory of Mountain Hazards and Surface Processes Chinese, Yichang, China
| | - Dong Xia
- College of Biological & Pharmaceutical Sciences, China Three Gorges University, Yichang, China
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, China Three Gorges University, Key Laboratory of Mountain Hazards and Surface Processes Chinese, Yichang, China
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, China
| | - Yueyang Ma
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, China Three Gorges University, Key Laboratory of Mountain Hazards and Surface Processes Chinese, Yichang, China
- College of Civil Engineering & Architecture, China Three Gorges University, Yichang, China
| | - Yang Zhang
- College of Biological & Pharmaceutical Sciences, China Three Gorges University, Yichang, China
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, China Three Gorges University, Key Laboratory of Mountain Hazards and Surface Processes Chinese, Yichang, China
| | - Ting Luo
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, China Three Gorges University, Key Laboratory of Mountain Hazards and Surface Processes Chinese, Yichang, China
- College of Civil Engineering & Architecture, China Three Gorges University, Yichang, China
| | - Jiaxin Ma
- College of Biological & Pharmaceutical Sciences, China Three Gorges University, Yichang, China
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, China Three Gorges University, Key Laboratory of Mountain Hazards and Surface Processes Chinese, Yichang, China
| | - Fang Liu
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, China Three Gorges University, Key Laboratory of Mountain Hazards and Surface Processes Chinese, Yichang, China
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, China
| | - Shuxing Yan
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, China Three Gorges University, Key Laboratory of Mountain Hazards and Surface Processes Chinese, Yichang, China
- College of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, China
| | - Daxiang Liu
- Hubei Provincial Engineering Research Center of Slope Habitat Construction Technique Using Cement-based Materials, China Three Gorges University, Key Laboratory of Mountain Hazards and Surface Processes Chinese, Yichang, China
- College of Civil Engineering & Architecture, China Three Gorges University, Yichang, China
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Li J, Xia D, Zhang M, Zhang Y, Liu X, Sun J, Xu B, Yang J, Wang N, Shi W, Guan X, Liu M. Infectious hematopoietic necrosis virus (IHNV) nucleoprotein amino acid residues affect viral virulence and immunogenicity in rainbow trout (Oncorhynchus mykiss). Fish Shellfish Immunol 2022; 130:572-581. [PMID: 35988711 DOI: 10.1016/j.fsi.2022.08.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 07/10/2022] [Accepted: 08/13/2022] [Indexed: 06/15/2023]
Abstract
This study compared the N protein sequences of genotype J with other genotypes of IHNV to select amino acid residues that may be related to the change in viral virulence. The recombinant viruses containing different mutation sites were rescued by alanine scanning mutagenesis and the reverse genetic system. The nine recombinant virus strains obtained in this work were named rIHNV-N85, rIHNV-N102, rIHNV-N146, rIHNV-N380, rIHNV-N85-102-146, rIHNV-N85-102-380, rIHNV-N85-146-380, rIHNV-N102-146-380, and rIHNV-N85-102-146-380. Pathogenicity and immunity assays were performed to determine the role of virulence sites. The result of the pathogenicity test showed that the survival rates of rIHNV-N85, rIHNV-N102, rIHNV-N85-102-146, and rIHNV-N85-102-380 groups were 52.5%, 55%, 67.5%, and 57.5%, while the survival rate of wild-type (wt) IHNV HLJ-09 group was only 10%. The replication ability of recombinant viruses with substitutions at positions 85 and 102 was significantly inhibited in vivo and in vitro. The qRT-PCR result indicated that the cytokines of IFN1, IL-8, and IL-1β expression levels were increased in rIHNV-N85, rIHNV-N102, rIHNV-N85-102-146, and rIHNV-N85-102-380 groups. In addition, these four recombinant viruses could cause the rainbow trout to produce anti-IHNV-specific antibodies immunoglobulin M (IgM) earlier, confirming that 85 and 102 amino acid residues of N protein affected the virulence and immunogenicity of IHNV. All these results suggest that mutations of the N protein virulence sites reduce virulence while retaining immunogenicity. This also provides a new idea for studying the virulence mechanism of rhabdoviruses and preparing attenuated vaccines.
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Affiliation(s)
- Jiahui Li
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Dong Xia
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Mengmeng Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Yanru Zhang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Xuefei Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jinhui Sun
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Baoxing Xu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Jiawei Yang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Na Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Wen Shi
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China
| | - Xueting Guan
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China; Guangdong Provincial Key Laboratory of Pathogenic Biology and Epidemiology for Aquatic Economic Animals, Guangdong Ocean University, Zhanjiang, 524025, People's Republic of China.
| | - Min Liu
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, 150030, People's Republic of China.
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Song QQ, Wang YH, Wang XL, Shi BT, Wang RF, Song J, Wang WJ, Xia D, Xia ZQ, Wei Q, Han J. Construction of MicroRNA-Target Interaction Networks Based on MicroRNA Expression Profiles of HRV16-infected H1-HeLa Cells. Biomed Environ Sci 2022; 35:854-860. [PMID: 36190000 DOI: 10.3967/bes2022.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
In the present study we investigated the changes in miRNA levels inhuman rhinovirus 16 (HRV16)-infected cells. A small RNA deep sequencing experiment was performed through next-generation sequencing. In total, 53 differentially expressed miRNAs were confirmed by RT-qPCR, including 37 known miRNAs and 16 novel miRNAs. Interaction networks between differentially expressed miRNAs and their targets were established by mirDIP and Navigator. The prediction results showed that QKI, NFAT5, BNC2, CELF2, LCOR, MBNL2, MTMR3, NFIB, PPARGC1A, RSBN1, TRPS1, WDR26, and ZNF148, which are associated with cellular differentiation and transcriptional regulation, were recognized by 12, 11, or 9 miRNAs. Many correlations were observed between transcriptional or post-transcriptional regulation of an miRNA and the expression levels of its target genes in HRV16-infected H1-HeLa cells.
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Affiliation(s)
- Qin Qin Song
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Yan Hai Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Xin Ling Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Bing Tian Shi
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Rui Fang Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Juan Song
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Wen Jun Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Dong Xia
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Zhi Qiang Xia
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Qiang Wei
- National Pathogen Resource Center, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Jun Han
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Xia D, Liu J, Yong J, Li X, Ji W, Zhao Z, Wang X, Xiao C, Wu S, Liu H, Zhao H, He Y. Strategies for understanding the role of cellular heterogeneity in the pathogenesis of lung cancer: a cell model for chronic exposure to cigarette smoke extract. BMC Pulm Med 2022; 22:333. [PMID: 36056339 PMCID: PMC9438261 DOI: 10.1186/s12890-022-02116-6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 08/12/2022] [Indexed: 11/16/2022] Open
Abstract
Background Human tumors are highly heterogeneous at the cellular, molecular, genetic and functional levels. Tumor heterogeneity has tremendous impact on cancer progression and treatment responses. However, the mechanisms for tumor heterogeneity have been poorly understood due to the lack of experimental models. Methods This study provides a novel exploration and analysis of the impacts of cellular and molecular heterogeneity of human lung epithelial cells on their malignant transformation following chronic exposure to cigarette smoke extracts. Results The ability of cigarette smoke extract (CSE) to cause malignant transformation of the human bronchial epithelial cells (16HBE) is dependent on the sizes of the cells. Epithelial-mesenchymal transition (EMT) plays an important role in this process. Mechanistically, CSE-induced malignant transformation of 16HBE cells was closely linked to the reduced relative telomere length of the larger 16HBE cells, thereby up-regulation of the expression of stemness genes. Conclusions These findings provide novel insights for understanding the impact of cellular heterogeneity in lung cancer development. The in vitro transformation model described in this study could be extrapolated to studying the pathogenesis of other malignancies, as well as for mechanistic studies that are not feasible in vivo. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-02116-6.
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Affiliation(s)
- Dong Xia
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Jieyi Liu
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Juanjuan Yong
- Department of Pathology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Xiang Li
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, Henan, People's Republic of China
| | - Weidong Ji
- Center for Translational Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Zhiqiang Zhao
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Xiaohui Wang
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Chen Xiao
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Sai Wu
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Huaixiang Liu
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Heping Zhao
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China
| | - Yun He
- Department of Toxicology, School of Public Health, Sun Yat-Sen University, Guangzhou, 510080, Guangdong, People's Republic of China.
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Min J, Huang Z, Pang X, Zhong T, Jin C, Chen N, Xia D, Zhang P, Wang Z, Xia Y, Li B. 486P AK130, a first-in-class Fc-mutant anti-TIGIT antibody fused with TGF-βRII protein, elicits potent anti-tumor efficacy in pre-clinical studies. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.614] [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: 11/26/2022] Open
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Xia D, Sakaushi K, Lyalin A, Wada K, Kumar S, Amores M, Maeda H, Sasaki S, Taketsugu T, Nishihara H. Superior Multielectron-Transferring Energy Storage by π-d Conjugated Frameworks. Small 2022; 18:e2202861. [PMID: 35766308 DOI: 10.1002/smll.202202861] [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: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Reversible multielectron-transfer materials are of considerable interest because of the potential impact to advance present electrochemical energy storage technology by boosting energy density. To date, a few oxide-based materials can reach an electron-transfer number per metal-cation (eM ) larger than 2 upon a (de)intercalation mechanism. However, these materials suffer from degradation due to irreversible rearrangements of the cation-oxygen bonds, and are based on precious metals, for example, Ir and Ru. Hence, a design of the non-oxide-based reversible multielectron-transfer materials with abundant elements can provide a promising alternative. Herein, it is demonstrated that the bis(diimino)copper framework can show eM = 3.5 with cation/anion co-redox mechanism together with a dual-ion mechanism. In this study, the role of the cation-anion interactions is unveiled by using an experiment/theory collaboration applied to a series of the model non-oxide abundant electrode systems based on different metal-nitrogen bonds. These models provide designer multielectron-transfer due to the tunable π-d conjugated electronic structures. It is found that the Cu-nitrogen bonds show a unique reversible rearrangement upon Li-intercalation, and this process responds to acquire a significant reversible multielectron-transfer. This work provides new insights into the affordable multielectron-transfer electrodes and uncovers an alternative strategy to advance the electrochemical energy storage reactions.
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Affiliation(s)
- Dong Xia
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Ken Sakaushi
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Andrey Lyalin
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, 001-0021, Japan
| | - Keisuke Wada
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Department of Chemistry, School of Science, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Sonu Kumar
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, 001-0021, Japan
| | - Marco Amores
- Center for Green Research on Energy and Environmental Materials, National Institute for Materials Science 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
- Department of Chemistry, School of Science, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hiroaki Maeda
- Department of Chemistry, School of Science, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
| | - Sono Sasaki
- Faculty of Fiber Science and Engineering, Kyoto Institute of Technology, Matsugasaki Hashikami-cho 1, Sakyo-ku, Kyoto, 606-8585, Japan
- SPring-8 Center, RIKEN, Kouto 1-1-1, Sayo-cho, Sayo-gun, Hyogo, 679-5148, Japan
| | - Tetsuya Taketsugu
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, 001-0021, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, 060-0810, Japan
| | - Hiroshi Nishihara
- Department of Chemistry, School of Science, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
- Research Institute for Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba, 278-8510, Japan
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Xue Y, Dong H, Huang H, Li S, Shan X, Li H, Liu H, Xia D, Su S, Yuan Y. Mutation in Mg-Protoporphyrin IX Monomethyl Ester (Oxidative) Cyclase Gene ZmCRD1 Causes Chlorophyll-Deficiency in Maize. Front Plant Sci 2022; 13:912215. [PMID: 35873969 PMCID: PMC9301084 DOI: 10.3389/fpls.2022.912215] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 05/23/2022] [Indexed: 06/01/2023]
Abstract
Chlorophyll molecules are non-covalently associated with chlorophyll-binding proteins to harvest light and perform charge separation vital for energy conservation during photosynthetic electron transfer in photosynthesis for photosynthetic organisms. The present study characterized a pale-green leaf (pgl) maize mutant controlled by a single recessive gene causing chlorophyll reduction throughout the whole life cycle. Through positional mapping and complementation allelic test, Zm00001d008230 (ZmCRD1) with two missense mutations (p.A44T and p.T326M) was identified as the causal gene encoding magnesium-protoporphyrin IX monomethyl ester cyclase (MgPEC). Phylogenetic analysis of ZmCRD1 within and among species revealed that the p.T326M mutation was more likely to be causal. Subcellular localization showed that ZmCRD1 was targeted to chloroplasts. The pgl mutant showed a malformed chloroplast morphology and reduced number of starch grains in bundle sheath cells. The ZmCRD1 gene was mainly expressed in WT and mutant leaves, but the expression was reduced in the mutant. Most of the genes involved in chlorophyll biosynthesis, chlorophyll degradation, chloroplast development and photosynthesis were down-regulated in pgl. The photosynthetic capacity was limited along with developmental retardation and production reduction in pgl. These results confirmed the crucial role of ZmCRD1 in chlorophyll biosynthesis, chloroplast development and photosynthesis in maize.
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Liu J, Liang Y, Qiao L, Xia D, Pan Y, Liu W. MiR-128-1-5p regulates differentiation of ovine stromal vascular fraction by targeting the KLF11 5'-UTR. Domest Anim Endocrinol 2022; 80:106711. [PMID: 35338828 DOI: 10.1016/j.domaniend.2022.106711] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/25/2022] [Accepted: 02/01/2022] [Indexed: 11/22/2022]
Abstract
Fat content is an important index to evaluate the individual performance of livestock animals such as sheep for meat production purposes. Reducing the subcutaneous and visceral fat while increasing the intramuscular fat is a valuable goal to achieve for the meat production industry. Here, we investigated the effect of miR-128-1-5p on adipogenesis of subcutaneous fat by targeting 5'-UTR in KLF11, a rare mechanism where most miRNAs bind the 3'-UTR of mRNAs. A dual fluorescence reporter assay was conducted to validate the binding sites of miR-128-1-5p on 5'-UTR of KLF11 mRNA. Roles of miR-128-1-5p in KLF11 expression were measured through co-transfecting miRNA mimics with KLF11-expressing vectors (CDSs together with or without the 5'-UTR) into ovine stromal vascular fractions (SVF). Additionally, functional roles of miR-128-1-5p, and KLF11 in adipogenesis of ovine subcutaneous fat were investigated. Results showed that miR-128-1-5p targeted KLF11 5'-UTR, reduced the fluorescence activity of the dual fluorescent reporter vector, as well as KLF11 mRNA, and protein expression levels. During the differentiation of SVF, disturbing the expression of miR-128-1-5p and KLF11 changed the adipogenic differentiation of SVF as observed in the lipid formation, and adipogenic marker genes. This study indicates that miR-128-1-5p promotes the expression of lipogenic marker genes and the formation of lipid droplets by targeting KLF11 5'-UTR. Furthermore, overexpression, and inhibition of KLF11 indicate that KLF11 inhibited SVF differentiation. In summary, the 5'-UTR binding mechanism discovered in this study extends the understanding of miRNA functions. Key roles of miR-128-1-5p and KLF11 in the adipogenesis of sheep subcutaneous fat have potential values for improving the meat and/or fat ratio of domestic animals.
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Affiliation(s)
- Jianhua Liu
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Yu Liang
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Liying Qiao
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Dong Xia
- Royal Veterinary College, University of London, London NW1 0TU, UK
| | - Yangyang Pan
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China
| | - Wenzhong Liu
- College of Animal Science, Shanxi Agricultural University, Taigu 030801, China.
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Xia D, Yu H, Xie H, Huang P, Menzel R, Titirici MM, Chai G. Recent progress of Bi-based electrocatalysts for electrocatalytic CO 2 reduction. Nanoscale 2022; 14:7957-7973. [PMID: 35635464 DOI: 10.1039/d2nr01900k] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
To mitigate excessively accumulated carbon dioxide (CO2) in the atmosphere and tackle the associated environmental concerns, green and effective approaches are necessary. The electrocatalytic CO2 reduction reaction (CO2RR) using sustainable electricity under benign reaction conditions represents a viable way to produce value-added and profitable chemicals. In this minireview, recent studies regarding unary Bi electrocatalysts and binary BiSn electrocatalysts are symmetrically categorized and reviewed, as they disclose high faradaic efficiencies toward the production of formate/formic acid, which has a relatively higher value of up to 0.50 $·per kg and has been widely used in the chemical and pharmaceutical industry. In particular, the preparation methodologies, electrocatalyst morphologies, catalytic performances and the corresponding mechanisms are comprehensively presented. The use of solid-state electrolytes showing high economic prospects for directly obtaining high-purity formic acid is highlighted. Finally, the remaining questions and challenges for CO2RR exploitations using Bi-related electrocatalysts are proposed, while perspectives and the corresponding strategies aiming to enhance their entire catalytic functionalities and boost their performance are provided.
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Affiliation(s)
- Dong Xia
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
| | - Huayang Yu
- School of Design, University of Leeds, Leeds, LS2 9 JT, UK
| | - Huan Xie
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China
| | - Peng Huang
- Department of Materials, University of Manchester, Manchester, M13 9PL, UK
| | - Robert Menzel
- School of Chemistry, University of Leeds, Leeds, LS2 9 JT, UK
| | | | - Guoliang Chai
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
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Adamson M, Zhao E, Xia D, Colicino E, Monaro M, Hitching R, Harris O, Greenhalgh M. Combining international survey datasets to identify indicators of stress during the COVID-19 pandemic: A machine learning approach to improve generalization. Eur Psychiatry 2022. [PMCID: PMC9564497 DOI: 10.1192/j.eurpsy.2022.951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction The magnitude and exceptional opportunity to research the psychological distress of shelter in place resulted in a publication frenzy on a smorgasbord of research studies of variable scientific robustness. Confinement, fear of contagion, social isolation, financial hardship, etc. equated to stratospheric stress levels. The decline in protective factors as a function of quarantine anecdotally reflected historic rates of anxiety and depression. Objectives In this study, we combined 12 variegate datasets and developed an algorithm to build a model to identify key predictors of pandemic-related stress with high accuracy and generalizability. Methods This study reports on existing published data. We first describe the International (Adamson et al., 2020) and then the Italian dataset (Flesia et al., 2020). The time-frame (first wave of lockdown), method (survey), measurement tool (Perceived Stress Scale), and outcome measures were extremely similar to enable consolidation of datasets (see Figure1). The Flesia et al., (2020) data set was integrated into the Adamson et al., (2020) dataset as the first step towards data validation construction of the ML predictive model. Results We aim to demonstrate the strength of combining cross-cultural datasets, and the applicability of ML algorithms to facilitate the process and generate a predictive model that identifies and validates key predictors of pandemic-related stress and accommodates for interaction with demographic, cultural, and other mitigating factors while concurrently having high generalizability. Conclusions We believe our model provides clinicians, researchers, and decision-makers with evidence to investigate the moderators and mediators of stress, and introduce novel interventions to mitigate the long-term effects of the COVID-19 pandemic. Disclosure No significant relationships.
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Wilshaw J, Boswood A, Chang YM, Sands CJ, Camuzeaux S, Lewis MR, Xia D, Connolly DJ. Evidence of altered fatty acid metabolism in dogs with naturally occurring valvular heart disease and congestive heart failure. Metabolomics 2022; 18:34. [PMID: 35635592 PMCID: PMC9151558 DOI: 10.1007/s11306-022-01887-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 04/06/2022] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Myxomatous mitral valve disease (MMVD) is the most common cardiac condition in adult dogs. The disease progresses over several years and affected dogs may develop congestive heart failure (HF). Research has shown that myocardial metabolism is altered in cardiac disease, leading to a reduction in β-oxidation of fatty acids and an increased dependence upon glycolysis. OBJECTIVES This study aimed to evaluate whether a shift in substrate use occurs in canine patients with MMVD; a naturally occurring model of human disease. METHODS Client-owned dogs were longitudinally evaluated at a research clinic in London, UK and paired serum samples were selected from visits when patients were in ACVIM stage B1: asymptomatic disease without cardiomegaly, and stage C: HF. Samples were processed using ultra-performance liquid chromatography mass spectrometry and lipid profiles were compared using mixed effects models with false discovery rate adjustment. The effect of disease stage was evaluated with patient breed entered as a confounder. Features that significantly differed were screened for selection for annotation efforts using reference databases. RESULTS Dogs in HF had altered concentrations of lipid species belonging to several classes previously associated with cardiovascular disease. Concentrations of certain acylcarnitines, phospholipids and sphingomyelins were increased after individuals had developed HF, whilst some ceramides and lysophosphatidylcholines decreased. CONCLUSIONS The canine metabolome appears to change as MMVD progresses. Findings from this study suggest that in HF myocardial metabolism may be characterised by reduced β-oxidation. This proposed explanation warrants further research.
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Affiliation(s)
- Jenny Wilshaw
- Department of Clinical Science and Services, Royal Veterinary College, University of London, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, London, United Kingdom.
| | - A Boswood
- Department of Clinical Science and Services, Royal Veterinary College, University of London, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, London, United Kingdom
| | - Y M Chang
- Research Support Office, Royal Veterinary College, University of London, London, United Kingdom
| | - C J Sands
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - S Camuzeaux
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - M R Lewis
- National Phenome Centre, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - D Xia
- Research Support Office, Royal Veterinary College, University of London, London, United Kingdom
- Department of Comparative Biomedical Science, Royal Veterinary College, University of London, London, United Kingdom
| | - D J Connolly
- Department of Clinical Science and Services, Royal Veterinary College, University of London, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire, AL9 7TA, London, United Kingdom
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Williams J, Soutter F, Burrell C, Fernando S, Xia D, Irving J, Williams-McDonald S, Kim S, Blake DP. Differential expression of microRNAs in the caecal content and faeces of broiler chickens experimentally infected with Eimeria. Avian Pathol 2022; 51:395-405. [PMID: 35583479 DOI: 10.1080/03079457.2022.2076581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractCoccidiosis caused by Eimeria spp. incurs significant morbidity and mortality in chickens, and is thus of great economic importance. Post-mortem intestinal lesion scoring remains one of the most common means of diagnosis, and therefore alternative, non-invasive methods of diagnosis and monitoring would be highly desirable. Micro-RNAs (miRNAs) have been shown to be stable in faeces of human and animal species with expression altered in gastrointestinal disease. We hypothesised that miRNA is stable in caecal content of chickens, and that differential miRNA expression patterns would be seen in Eimeria infected versus uninfected individuals. Initially, RNA was extracted from Eimeria tenella infected (n = 3; seven days post-infection) and uninfected (n = 3) chicken caecal content to demonstrate miRNA stability. Subsequently, next generation miRNA sequencing was performed on caecal content from E. tenella infected chickens with high (lesion score (LS) 3-4; n = 3) or low (LS1; n = 3) levels of pathology and uninfected controls (n = 3). Comparative analysis identified 19 miRNAs that exhibited significantly altered expression in the caecal content of E. tenella infected chickens versus uninfected chickens (t-test, False Discovery Rate (FDR) < 0.05). Eight of these miRNAs showed significant up-regulation in infection (fold change of 9.8-105, FDR <0.05). Quantitative PCR was performed using separate biological replicates to confirm differential regulation in 8 of these miRNA candidates in caecal and faecal content. This work has identified a panel of miRNA candidates which may be appropriate for use as non-invasive faecal markers of active caecal coccidiosis without the need for culling.
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Affiliation(s)
- Jonathan Williams
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts, AL9 7TA
| | - Francesca Soutter
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts, AL9 7TA
| | - Caela Burrell
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts, AL9 7TA
| | - Shayara Fernando
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts, AL9 7TA
| | - Dong Xia
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts, AL9 7TA
| | - Jennifer Irving
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts, AL9 7TA
| | - Sarah Williams-McDonald
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts, AL9 7TA
| | - Sungwon Kim
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts, AL9 7TA
| | - Damer P Blake
- Pathobiology and Population Sciences, The Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Herts, AL9 7TA
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Lu N, Jiang X, Zhang C, Li B, Tu W, Lei H, Yao W, Xia D. Melatonin mediates via melatonin receptor 1 in a temperature-dependent manner regulating ATP metabolism and antioxidative enzyme activity of boar spermatozoa in vitro. Theriogenology 2022; 188:1-12. [DOI: 10.1016/j.theriogenology.2022.05.008] [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] [Received: 07/03/2021] [Revised: 12/11/2021] [Accepted: 05/12/2022] [Indexed: 10/18/2022]
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Wu G, Chen W, Pang Y, Xie R, Xia D, Chai G. Modulating AgIn@In2O3 core‐shell catalysts for amplified electrochemical reduction of CO2 to formate. ChemElectroChem 2022. [DOI: 10.1002/celc.202200318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Guangqing Wu
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter State Key Laboratory of Structural Chemistry CHINA
| | - Wu Chen
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter State Key Laboratory of Structural Chemistry CHINA
| | - Yongyu Pang
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter State Key Laboratory of Structural Chemistry CHINA
| | - Ruikuan Xie
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter State Key Laboratory of Structural Chemistry CHINA
| | - Dong Xia
- Chinese Academy of Sciences Fujian Institute of Research on the Structure of Matter State Key Laboratory of Structural Chemistry CHINA
| | - Guoliang Chai
- Fujian institute of reseach on the structure of matter, Chinese academy of sciences State key laboratory of structural chemistry 155 Yangqiao Road West 350002 Fuzhou CHINA
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Cai JF, Li J, Xia D. Generalized Low-rank plus Sparse Tensor Estimation by Fast Riemannian Optimization. J Am Stat Assoc 2022. [DOI: 10.1080/01621459.2022.2063131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Jian-Feng Cai
- Department of Mathematics, Hong Kong University of Science and Technology
| | - Jingyang Li
- Department of Mathematics, Hong Kong University of Science and Technology
| | - Dong Xia
- Department of Mathematics, Hong Kong University of Science and Technology
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Xia D, Zhao H, Kobayashi S, Mi Q, Hao A, Iseri Y. Effect of remediation reagents on bacterial composition and ecological function in black-odorous water sediments. Arch Microbiol 2022; 204:280. [PMID: 35462604 PMCID: PMC9035426 DOI: 10.1007/s00203-022-02871-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 11/20/2022]
Abstract
Black-odorous urban water bodies and sediments pose a serious environmental problem. In this study, we conducted microcosm batch experiments to investigate the effect of remediation reagents (magnesium hydroxide and calcium nitrate) on native bacterial communities and their ecological functions in the black-odorous sediment of urban water. The dominant phyla (Proteobacteria, Actinobacteria, Chloroflexi, and Planctomycetes) and classes (Alphaproteobacteria, Betaproteobacteria, and Gammaproteobacteria, Actinobacteria, Anaerolineae, and Planctomycetia) were determined under calcium nitrate and magnesium hydroxide treatments. Functional groups related to aerobic metabolism, including aerobic chemoheterotrophy, dark sulfide oxidation, and correlated dominant genera (Thiobacillus, Lysobacter, Gp16, and Gaiella) became more abundant under calcium nitrate treatment, whereas functional genes potentially involved in dissimilatory sulfate reduction became less abundant. The relative abundance of chloroplasts, fermentation, and correlated genera (Desulfomonile and unclassified Cyanobacteria) decreased under magnesium hydroxide treatment. Overall, these results indicated that calcium nitrate addition improved hypoxia-related reducing conditions in the sediment and promoted aerobic chemoheterotrophy.
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Song QQ, Luo XN, Shi BT, Liu M, Song J, Xia D, Xia ZQ, Wang WJ, Yao HL, Han J. Exploration of IRES Elements within the ORF of the Coxsackievirus B3 Genome. Biomed Environ Sci 2022; 35:322-333. [PMID: 35473896 DOI: 10.3967/bes2022.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 11/02/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVE This study aimed to identify internal ribosome entry sites (IRESs) in the open reading frame (ORF) of the Coxsackievirus B3 (CVB3) genome. METHODS The sequences of P1, P2, or P3 of the CVB3 genome or the truncated sequences from each antithymocyte globulin (ATG) to the end of the P1, P2, or P3 gene were inserted into the pEGFP-N1 vector. After transfection, possible IRES-dependent green fluorescent protein (GFP)-fused proteins were detected by anti-GFP western blotting. The sequences of possible IRESs were inserted into specific Fluc/Rluc bicistronic vectors, in which the potential IRESs were determined according to the Fluc/Rluc activity ratio. Expression of Fluc and Rluc mRNA of the bicistronic vector was detected by RT-qPCR. RESULTS After transfection of full length or truncated sequences of the P1, P2, or P3 plasmids, six GFP-fused protein bands in P1, six bands in P2 and nine bands in P3 were detected through western blotting. Two IRESs in VP2 (1461-1646 nt) and VP1 (2784-2983 nt) of P1; one IRES in 2C (4119-4564 nt) of P2; and two IRESs in 3C (5634-5834 nt) and 3D (6870-7087 nt) of P3 were identified according to Fluc/Rluc activity ratio. The cryptic promoter was also excluded by RT-qPCR. CONCLUSION Five IRESs are present in the CVB3 coding region.
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Affiliation(s)
- Qin Qin Song
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Xiao Nuan Luo
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Bing Tian Shi
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Mi Liu
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Juan Song
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Dong Xia
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Zhi Qiang Xia
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Wen Jun Wang
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Hai Lan Yao
- Molecular Immunology Laboratory, Capital Institute of Pediatrics, Beijing 100020, China
| | - Jun Han
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Affiliation(s)
- Yuan Zhang
- Department of Statistics, The Ohio State University
| | - Dong Xia
- Department of Mathematics, The Hong Kong University of Science and Technology
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45
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Xia D, Zhang AR, Zhou Y. Inference for low-rank tensors—no need to debias. Ann Stat 2022. [DOI: 10.1214/21-aos2146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Dong Xia
- Department of Mathematics, Hong Kong University of Science and Technology
| | - Anru R. Zhang
- Departments of Biostatistics & Bioinformatics, Computer Science, Mathematics, and Statistical Science, Duke University
| | - Yuchen Zhou
- Department of Statistics and Data Science, The Wharton School, University of Pennsylvania
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Huang J, Wang Y, Zhang C, Hu X, Wang P, Shi G, Dong L, Zhang J, Kong W, Chen Y, Ye D, Xia D, Guo J, Xue W, Huang Y, He Z. Surgical management and oncologic outcomes for local recurrence of renal cell carcinoma after radical nephrectomy. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00460-2] [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: 11/26/2022]
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Li H, Sun J, Gui H, Xia D, Wang Y. Physiochemical properties, heavy metal leaching characteristics and reutilization evaluations of solid ashes from municipal solid waste incinerator plants. Waste Manag 2022; 138:49-58. [PMID: 34864522 DOI: 10.1016/j.wasman.2021.11.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/02/2021] [Accepted: 11/23/2021] [Indexed: 06/13/2023]
Abstract
A clear understanding of the physicochemical, compositional, morphological properties and heavy metal leaching behaviours of municipal solid waste (MSW) incinerated fly ash (FA) and bottom ash (BA) are essential to guide their respective re-utilizations. In this study, FA and BA collected from three MSW incinerator plants located in Xiamen were systematically exploited. Results indicated that FA in the three plants exhibited more porous structures than BA, and the particle sizes of FA and BA were 45-295 μm and >3000 μm, respectively. However, both ashes showed similar main mineralogical crystalline phases of Ca(OH)2, CaCO3 and SiO2, indicative of high feasibilities in manufacturing cement, bricks or construction materials. Additionally, the heavy metal migration of MSW into leachate, flue gas, FA and BA were all specifically measured in this study to provide full data analyses and in-depth understandings of heavy metal migrations, manifesting that the heavy metals of MSW majorly migrated into the FA and BA with clearly discrepant metal ratios and only a very small fraction migrated into the leachate and flue gas. To maximumly reuse both FA and BA, importantly, the green degree and cost-benefit analysis methods were integrated into this study to evaluate their re-utilization alternatives on environmental impacts and economic benefits, and results implied that FA was beneficial for re-utilizing as aggregates in bricks while BA was optimum as paving materials. This study provides overall systematic perspectives on guiding the re-utilization of FA/BA from the MSW incinerators and also considers their environmental and economic benefits for future long-term management.
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Affiliation(s)
- Heng Li
- Key Laboratory of Estuarine Ecological Security and Environmental Health, Tan Kah Kee College, Xiamen University, Zhangzhou, PR China; Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China
| | - Jinging Sun
- Xiamen Environmental Energy Investment & Development Co., Ltd., Xiamen, PR China
| | - Hongjie Gui
- Key Laboratory of Estuarine Ecological Security and Environmental Health, Tan Kah Kee College, Xiamen University, Zhangzhou, PR China
| | - Dong Xia
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China.
| | - Yuanpeng Wang
- Department of Chemical and Biochemical Engineering, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, PR China.
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Zhu Y, Xiao T, Xia D, Yang W. Recent Advances in the Decarboxylative Fluoroalkylation of Fluoroalkyl Carboxylic Acids. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202208017] [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: 01/06/2023]
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49
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Zhang Y, Pang Y, Xia D, Chai G. Regulable pyrrolic-N-doped carbon materials as an efficient electrocatalyst for selective O 2 reduction to H 2O 2. NEW J CHEM 2022. [DOI: 10.1039/d2nj02393h] [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: 11/21/2022]
Abstract
Metal-free nitrogen-doped carbon catalysts with pyrrolic-N as the active site were efficiently synthesized via a direct carbonization method, which exibited a high two-electron oxygen reduction reaction performance.
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Affiliation(s)
- Yunxian Zhang
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P. R. China
| | - Yongyu Pang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Dong Xia
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Guoliang Chai
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
- Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian 350108, P. R. China
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Gu J, Liang H, Ge X, Xia D, Pan L, Mi H, Ren M. A study of the potential effect of yellow mealworm (Tenebrio molitor) substitution for fish meal on growth, immune and antioxidant capacity in juvenile largemouth bass (Micropterus salmoides). Fish Shellfish Immunol 2022; 120:214-221. [PMID: 34843945 DOI: 10.1016/j.fsi.2021.11.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [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: 10/07/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 06/13/2023]
Abstract
This study aimed to evaluate the effects of partial replacement of fish meal (FM) with yellow mealworm (Tenebrio molitor, TM) on the growth performance, food utilization and intestinal immune response of juvenile largemouth bass (Micropterus salmoides). Seven diets containing increasing levels of TM (FM substitution) were designed (approximately 0% (0%), 4% (11.1%), 8.1% (22.2%), 12.2% (33.3%), 16.3% (44.4%), 20.4% (55.5%), and 24.5% (66.6%), designated TM0, TM11, TM22, TM33, TM44, TM55, and TM66, respectively). 420 fish were randomly selected and placed in 21 cages (1 m*1 m*1 m, 7 treatments for triplicate, 20 fish per cage). Fish (initial weight 6.25 ± 0.03 g) were fed seven isonitrogenous (47%) and isocaloric (19 MJ kg-1) diets to satiety twice daily for 8 weeks. Compared to the control group (TM0), TM11 showed no significant difference in the weight gain rate (WGR), specific growth rate (SGR) or feed conversion ratio (FCR), while all other TM inclusion groups presented different degrees of decline. There was no significant difference in the whole-body composition among all groups (P > 0.05). Plasma total protein (TP), triglyceride (TG) and albumin (ALB) contents were significantly decreased in TM55 and TM66 (P < 0.05). The highest plasma aspartate transaminase (AST) activity was observed in TM66 (P < 0.05). TM33, TM44 and TM55 showed the lowest activities of plasma alanine amiotransferase (ALT) and alkaline phosphatase (ALP) (P < 0.05). Moreover, increased mRNA levels of superoxide dismutase (SOD) and catalase (CAT) were measured in the TM11 to TM55 groups, while intestinal SOD activity peaked in TM11 (P < 0.05). With the exception of TM11, the other TM inclusion groups showed significant inhibition of the relative expression of RelA, C3 and TNF-α (P < 0.05). All experimental groups exhibited lower expression of IL-10 than TM0 (P < 0.05). The TM11 group showed significantly upregulated expression of IL-1β and TGF-β (P < 0.05). In addition, TLR2 expression was increased in TM11 and TM22 (P < 0.05). Considering enzyme activities and immune-related gene expression, TM supplementation levels should not exceed 4% (TM11).
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Affiliation(s)
- Jiaze Gu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China
| | - Hualiang Liang
- Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, 214081, China
| | - Xianping Ge
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China; Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, 214081, China
| | - Dong Xia
- Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, 214081, China
| | - Liangkun Pan
- Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, 214081, China
| | - Haifeng Mi
- Tongwei Co., Ltd.; Healthy Aquaculture Key Laboratory of Sichuan Province, Chengdu, 610093, China.
| | - Mingchun Ren
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 214081, China; Freshwater Fisheries Research Center (FFRC), Chinese Academy of Fishery Sciences (CAFS), Wuxi, 214081, China.
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