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Kumar S, Gupta MK, Kumar S, Rana T. Comparative studies of xanthine oxidase inhibitors viz. allopurinol and febuxostat against induced hyperuricaemia in a poultry model. Avian Pathol 2024; 53:80-89. [PMID: 37881947 DOI: 10.1080/03079457.2023.2276142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 10/22/2023] [Indexed: 10/27/2023]
Abstract
In this study, an attempt was made to evaluate the relative efficacy of two important anti-gout agents, viz. allopurinol and febuxostat, in the control of hyperuricaemia/gout using a poultry model. A 21-day study was conducted on 48 Vencobb-400 broiler chicks randomly divided into four groups. In one group hyperuricaemia/gout was induced by the oral administration of diclofenac (group D); in two other groups the ameliorative effect of the two drugs under study was investigated by providing both simultaneously, i.e. diclofenac and allopurinol (group DA), diclofenac and febuxostat (group DF); and the fourth group was kept un-induced and untreated as a control (group C). Both allopurinol and febuxostat inhibit xanthine oxidase enzymes, thereby reducing the production of uric acid. The birds kept on diclofenac alone exhibited the highest level of hyperuricaemia, clinical signs of gout, and overt adverse changes in the visceral organs, whereas these changes were lesser in allopurinol- and febuxostat-treated groups. Furthermore, haematological, biochemical, patho-morphological, and ultra-structural studies using transmission electron microscopy were carried out to evaluate the pathology and, thus, the ameliorative effect of allopurinol and febuxostat. The findings proved that allopurinol and febuxostat carry definite ameliorative potential as anti-hyperuricemic and anti-gout agents in poultry, which was better expressed by febuxostat compared to allopurinol.
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Affiliation(s)
- Sanjiv Kumar
- Department of Veterinary Pathology, Bihar Veterinary College, Patna, India
| | - Madhurendu Kumar Gupta
- Department of Veterinary Pathology, Ranchi Veterinary College, Birsa Agricultural University, Ranchi, India
| | - Sanjit Kumar
- Department of Veterinary Pathology, Ranchi Veterinary College, Birsa Agricultural University, Ranchi, India
| | - Tanmoy Rana
- Department of Veterinary Clinical Complex, West Bengal University of Animal & Fishery Sciences, Kolkata, India
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Wang J, Hao P, Sun X, Ward R, Tang T, Chen X, Liu Y, Luo G, Yang Y, Xiang C, An S, Xu TR. New animal model of chronic gout reproduces pathological features of the disease in humans. RMD Open 2023; 9:e003499. [PMID: 37973536 PMCID: PMC10660916 DOI: 10.1136/rmdopen-2023-003499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 10/12/2023] [Indexed: 11/19/2023] Open
Abstract
OBJECTIVES Gout, as the most prevalent form of inflammatory arthritis, necessitates the use of animal models to investigate the molecular mechanisms involved in its development. Therefore, our objective was to develop a novel chronic mouse model of gout that more closely mimics the progression of gout in humans. METHODS A novel chronic mouse model of gout was established by a simple method, which does not require high technical proficiency, predominantly involves daily intraperitoneal injections of potassium oxonate for approximately 4 months, combined with a high fat-diet and injections of acetic acid into the hind paws to facilitate the formation of monosodium urate (MSU). Arthritis scores and paw oedema were assessed, behavioural tests were conducted, and histopathological and imaging evaluations of the arthritic paw joints were performed. RESULTS After 4 months of induction, mice in the model group exhibited noticeable increases in arthritis severity, joint and cartilage damage, as well as bone erosion. Gomori's methenamine silver stain revealed the presence of MSU crystal deposition or tophi in the paw joints or ankle joints of up to 37.9% of the model mice (11 out of 29 mice). Moreover, treatment with benzbromarone effectively prevented the further development of gout or tophi formation in model mice. CONCLUSIONS Our model more accurately replicates the pathological features of gouty arthritis compared with gout induced by MSU crystal injections. Therefore, it is particularly suitable for further investigations into the pathogenesis of gout and also serves as a valuable platform for screening potential antigout agents.
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Affiliation(s)
- Jiwei Wang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Peiqi Hao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Xianrun Sun
- Department of Orthopedic Surgery, Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Richard Ward
- Centre for Translational Pharmacology, Institute of Molecular Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Tao Tang
- Medical School, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Xi Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yihong Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Guancong Luo
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Yang Yang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Cheng Xiang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Su An
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Tian-Rui Xu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, Yunnan, China
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Medina JP, Bermejo-Álvarez I, Pérez-Baos S, Yáñez R, Fernández-García M, García-Olmo D, Mediero A, Herrero-Beaumont G, Largo R. MSC therapy ameliorates experimental gouty arthritis hinting an early COX-2 induction. Front Immunol 2023; 14:1193179. [PMID: 37533852 PMCID: PMC10391650 DOI: 10.3389/fimmu.2023.1193179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 07/03/2023] [Indexed: 08/04/2023] Open
Abstract
Objective The specific effect of Adipose-Derived Mesenchymal Stem Cells (Ad-MSC) on acute joint inflammation, where the response mostly depends on innate immunity activation, remains elusive. The pathogenesis of gouty arthritis, characterized by the deposition of monosodium urate (MSU) crystals in the joints, associated to acute flares, has been associated to NLRP3 inflammasome activation and subsequent amplification of the inflammatory response. Our aim was to study the effect of human Ad-MSC administration in the clinical inflammatory response of rabbits after MSU injection, and the molecular mechanisms involved. Methods Ad-MSC were administered by intraarterial route shortly after intraarticular MSU crystal injections. Joint and systemic inflammation was sequentially studied, and the mechanisms involved in NLRP3 inflammasome activation, and the synthesis of inflammatory mediators were assessed in the synovial membranes 72h after insult. Ad-MSC and THP-1-derived macrophages stimulated with MSU were co-cultured in transwell system. Results A single systemic dose of Ad-MSC accelerated the resolution of local and systemic inflammatory response. In the synovial membrane, Ad-MSC promoted alternatively M2 macrophage presence, inhibiting NLRP3 inflammasome and inducing the production of anti-inflammatory cytokines, such as IL-10 or TGF-β, and decreasing nuclear factor-κB activity. Ad-MSC induced a net anti-inflammatory balance in MSU-stimulated THP-1 cells, with a higher increase in IL-10 and IDO expression than that observed for IL-1β and TNF. Conclusion Our in vivo and in vitro results showed that a single systemic dose of Ad-MSC decrease the intensity and duration of the inflammatory response by an early local COX-2 upregulation and PGE2 release. Ad-MSCs suppressed NF-kB activity, NLRP3 inflammasome, and promoted the presence of M2 alternative macrophages in the synovium. Therefore, this therapeutic approach could be considered as a pharmacological alternative in patients with comorbidities that preclude conventional treatment.
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Affiliation(s)
- Juan Pablo Medina
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
| | - Ismael Bermejo-Álvarez
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
| | - Sandra Pérez-Baos
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
| | - Rosa Yáñez
- Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER-ER), Madrid, Spain
- Advanced Therapies Dept, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - María Fernández-García
- Hematopoietic Innovative Therapies Division, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT) and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBER-ER), Madrid, Spain
- Advanced Therapies Dept, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - Damián García-Olmo
- New Therapies Laboratory, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
- Department of Surgery, Fundación Jiménez Díaz University Hospital, Madrid, Spain
- Department of Surgery, School of Medicine UAM, Madrid, Spain
| | - Aránzazu Mediero
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
| | - Gabriel Herrero-Beaumont
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
| | - Raquel Largo
- Bone and Joint Research Unit, Rheumatology Dept, IIS-Fundación Jiménez Díaz Universidad Autonoma de Madrid (UAM), Madrid, Spain
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Scanu A, Luisetto R, Ramonda R, Spinella P, Sfriso P, Galozzi P, Oliviero F. Anti-Inflammatory and Hypouricemic Effect of Bioactive Compounds: Molecular Evidence and Potential Application in the Management of Gout. Curr Issues Mol Biol 2022; 44:5173-5190. [PMID: 36354664 PMCID: PMC9688861 DOI: 10.3390/cimb44110352] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/20/2022] [Accepted: 10/21/2022] [Indexed: 07/21/2023] Open
Abstract
Gout is caused by the deposition of monosodium urate crystals in the joint and represents the most common form of inflammatory arthritis in men. Its prevalence is rising worldwide mainly due to the increase of risk factors associated with the disease, in particular hyperuricemia. Besides gout, hyperuricemia leads to an increased inflammatory state of the body with consequent increased risk of comorbidities such as cardiovascular diseases. Increasing evidence shows that bioactive compounds have a significant role in fighting inflammatory and immune chronic conditions. In gout and hyperuricemia, these molecules can exert their effects at two levels. They can either decrease serum uric acid concentrations or fight inflammation associated with monosodium urate crystals deposits and hyperuricemia. In this view, they might be considered valuable support to the pharmacological therapy and prevention of the disease. This review aims to provide an overview of the beneficial role of bioactive compounds in hyperuricemia, gout development, and inflammatory pathways of the disease.
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Affiliation(s)
- Anna Scanu
- Rheumatology Unit, Department of Medicine—DIMED, University of Padova, 35128 Padova, Italy
| | - Roberto Luisetto
- Department of Surgery, Oncology and Gastroenterology—DISCOG, University of Padova, 35128 Padova, Italy
| | - Roberta Ramonda
- Rheumatology Unit, Department of Medicine—DIMED, University of Padova, 35128 Padova, Italy
| | - Paolo Spinella
- Clinical Nutrition Unit, Department of Medicine—DIMED, University of Padova, 35128 Padova, Italy
| | - Paolo Sfriso
- Rheumatology Unit, Department of Medicine—DIMED, University of Padova, 35128 Padova, Italy
| | - Paola Galozzi
- Rheumatology Unit, Department of Medicine—DIMED, University of Padova, 35128 Padova, Italy
| | - Francesca Oliviero
- Rheumatology Unit, Department of Medicine—DIMED, University of Padova, 35128 Padova, Italy
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5
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Jiao C, Liang H, Liu L, Li S, Chen J, Xie Y. Transcriptomic analysis of the anti-inflammatory effect of Cordyceps militaris extract on acute gouty arthritis. Front Pharmacol 2022; 13:1035101. [PMID: 36313318 PMCID: PMC9614083 DOI: 10.3389/fphar.2022.1035101] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 09/26/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Gouty arthritis (GA) is a common inflammatory disease that causes pain due to the deposition of monosodium urate (MSU) crystals into joints and surrounding tissues. Anti-inflammatory drugs have significant clinical anti-inflammatory and analgesic effects, but they have many side effects. Cordyceps militaris is an edible and medicinal fungus, and its extract (CME) has good anti-inflammatory and analgesic effects. This study aimed to investigate the anti-inflammatory effect of CME on GA and its underlying mechanism. Methods: The effect of CME on the expression of related inflammatory factors and histopathological changes in the MSU-induced acute inflammatory gout model in rats was studied by ELISA and HE, and its anti-inflammatory mechanism was analyzed by transcriptome combined with RT-qPCR. Results: CME significantly improved gait scores and joint swelling in GA rats, and reduced MSU-induced inflammatory cell infiltration. CME inhibited MSU-induced inflammatory responses by reducing the levels of pro-inflammatory factors TNF-α, IL-1β, IL-6, and Caspase-1 and increasing the anti-inflammatory factor IL-10. Transcriptome analysis showed that CME significantly altered inflammation-related cytokine pathways, and identified four major genes involved in regulation of inflammation, CCL7, CSF2RB, LIF, and IL-1β. In addition, RT-qPCR was performed to verify these differential genes. Conclusion: CME significantly alleviated the inflammatory progression of GA and ameliorated the onset of GA. The underlying mechanism may be related to triggering the cytokine-cytokine receptor interaction signaling pathway to inhibit the activation of the inflammasome and regulate the immune system. And it regulates the inflammatory response induced by MSU crystals through the genes CCL7, CSF2RB, and IL-1β.
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Affiliation(s)
- Chunwei Jiao
- Guangdong Yuewei Edible Fungi Technology Co, Ltd., Guangzhou, China
- Guangdong Yuewei Bioscience Co., Ltd., Zhaoqing, China
| | - Huijia Liang
- Guangdong Yuewei Edible Fungi Technology Co, Ltd., Guangzhou, China
| | - Li Liu
- Guangdong Yuewei Edible Fungi Technology Co, Ltd., Guangzhou, China
| | - Shunxian Li
- Guangdong Yuewei Bioscience Co., Ltd., Zhaoqing, China
| | - Jiaming Chen
- Guangdong Yuewei Edible Fungi Technology Co, Ltd., Guangzhou, China
| | - Yizhen Xie
- Guangdong Yuewei Edible Fungi Technology Co, Ltd., Guangzhou, China
- Guangdong Yuewei Bioscience Co., Ltd., Zhaoqing, China
- *Correspondence: Yizhen Xie,
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Hilsabeck TAU, Liu-Bryan R, Guo T, Wilson KA, Bose N, Raftery D, Beck JN, Lang S, Jin K, Nelson CS, Oron T, Stoller M, Promislow D, Brem RB, Terkeltaub R, Kapahi P. A fly GWAS for purine metabolites identifies human FAM214 homolog medusa, which acts in a conserved manner to enhance hyperuricemia-driven pathologies by modulating purine metabolism and the inflammatory response. GeroScience 2022; 44:2195-2211. [PMID: 35381951 PMCID: PMC9616999 DOI: 10.1007/s11357-022-00557-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 03/25/2022] [Indexed: 01/14/2023] Open
Abstract
Elevated serum urate (hyperuricemia) promotes crystalline monosodium urate tissue deposits and gout, with associated inflammation and increased mortality. To identify modifiers of uric acid pathologies, we performed a fly Genome-Wide Association Study (GWAS) on purine metabolites using the Drosophila Genetic Reference Panel strains. We tested the candidate genes using the Drosophila melanogaster model of hyperuricemia and uric acid crystallization ("concretion formation") in the kidney-like Malpighian tubule. Medusa (mda) activity increased urate levels and inflammatory response programming. Conversely, whole-body mda knockdown decreased purine synthesis precursor phosphoribosyl pyrophosphate, uric acid, and guanosine levels; limited formation of aggregated uric acid concretions; and was sufficient to rescue lifespan reduction in the fly hyperuricemia and gout model. Levels of mda homolog FAM214A were elevated in inflammatory M1- and reduced in anti-inflammatory M2-differentiated mouse bone marrow macrophages, and influenced intracellular uric acid levels in human HepG2 transformed hepatocytes. In conclusion, mda/FAM214A acts in a conserved manner to regulate purine metabolism, promotes disease driven by hyperuricemia and associated tissue inflammation, and provides a potential novel target for uric acid-driven pathologies.
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Affiliation(s)
- Tyler A U Hilsabeck
- Buck Institute for Research On Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA
- Davis School of Gerontology, University of Southern California, University Park, Los Angeles, CA, 90007, USA
| | - Ru Liu-Bryan
- VA San Diego Healthcare System, 111K, 3350 La Jolla Village Drive, San Diego, CA, 92161, USA
- Department of Medicine, Division of Rheumatology, Allergy and Immunology, University of California San Diego, San Diego, CA, 92093, USA
| | - Tracy Guo
- VA San Diego Healthcare System, 111K, 3350 La Jolla Village Drive, San Diego, CA, 92161, USA
- Department of Medicine, Division of Rheumatology, Allergy and Immunology, University of California San Diego, San Diego, CA, 92093, USA
| | - Kenneth A Wilson
- Buck Institute for Research On Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA
| | - Neelanjan Bose
- Buck Institute for Research On Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA
| | - Daniel Raftery
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA
| | - Jennifer N Beck
- Buck Institute for Research On Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA
- Department of Urology, University of California, San Francisco, 400 Parnassus Avenue, Room A-632, San Francisco, CA, 94143, USA
| | - Sven Lang
- Department of Medical Biochemistry and Molecular Biology, Saarland University, Homburg, Germany
| | - Kelly Jin
- Allen Institute for Brain Science, Seattle, WA, 98109, USA
- Department of Pathology, University of Washington, Seattle, WA, 98195, USA
| | - Christopher S Nelson
- Buck Institute for Research On Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA
| | - Tal Oron
- Buck Institute for Research On Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA
| | - Marshall Stoller
- Department of Urology, University of California, San Francisco, 400 Parnassus Avenue, Room A-632, San Francisco, CA, 94143, USA
| | - Daniel Promislow
- Department of Pathology, University of Washington, Seattle, WA, 98195, USA
- Department of Biology, University of Washington, Seattle, WA, 98195, USA
| | - Rachel B Brem
- Buck Institute for Research On Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA
- Davis School of Gerontology, University of Southern California, University Park, Los Angeles, CA, 90007, USA
- Department of Plant and Microbial Biology, University of California, Berkeley, 111 Koshland Hall, Berkeley, CA, 94720, USA
| | - Robert Terkeltaub
- VA San Diego Healthcare System, 111K, 3350 La Jolla Village Drive, San Diego, CA, 92161, USA
- Department of Medicine, Division of Rheumatology, Allergy and Immunology, University of California San Diego, San Diego, CA, 92093, USA
| | - Pankaj Kapahi
- Buck Institute for Research On Aging, 8001 Redwood Blvd., Novato, CA, 94945, USA.
- Davis School of Gerontology, University of Southern California, University Park, Los Angeles, CA, 90007, USA.
- Department of Urology, University of California, San Francisco, 400 Parnassus Avenue, Room A-632, San Francisco, CA, 94143, USA.
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7
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Kim HS, Hwang HJ, Kim HJ, Do SH. Case Report: Articular Gout in Four Dogs and One Cat. Front Vet Sci 2022; 9:752774. [PMID: 35558881 PMCID: PMC9087635 DOI: 10.3389/fvets.2022.752774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 03/29/2022] [Indexed: 11/23/2022] Open
Abstract
Background There is widespread prejudice in veterinary medicine that gout does not occur in non-human mammalians. However, we recently discovered monosodium urate crystals in the synovial fluid obtained from a few dogs and a cat. Since it is the definitive and gold standard to diagnose gout, we report these cases as newly emerging diseases in companion animals. Case Presentation Four dogs and one cat were presented at our hospital because of lameness due to an unknown cause. Even after the routine examinations, including radiographic imaging, laboratory examination, and arthrocentesis, we were unable to find a clear cause of polyarthritis. However, we later discovered monosodium urate crystals in the synovial fluid of the animals, confirmed by polarized microscopy. In one of the two dogs treated with immunosuppressants, the disease relapsed, and the other did not show any symptoms for 3 months. The other two dogs were treated with xanthine oxidase inhibitor, where one died, and the other did not show any symptoms for 3 years. The cat was treated with drainage and intra-articular dexamethasone injection, but the disease recurred after 6 months. Conclusion This is the first report to confirm that articular gout can occur in dogs and cats. Care must be taken not to neglect needle-shaped materials in the synovial fluid. Gout should also be included in the differential diagnosis of arthritis and further research is needed in these animals.
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Affiliation(s)
- Hyo-Sung Kim
- Department of Veterinary Clinical Pathology, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
- Department of Veterinary Clinical Pathology, Konkuk Veterinary Medical Teaching Hospital, Konkuk University, Seoul, South Korea
| | - Hyun-Jeong Hwang
- Department of Veterinary Clinical Pathology, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
- Department of Veterinary Clinical Pathology, Konkuk Veterinary Medical Teaching Hospital, Konkuk University, Seoul, South Korea
| | - Han-Jun Kim
- Department of Veterinary Clinical Pathology, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, United States
| | - Sun Hee Do
- Department of Veterinary Clinical Pathology, College of Veterinary Medicine, Konkuk University, Seoul, South Korea
- Department of Veterinary Clinical Pathology, Konkuk Veterinary Medical Teaching Hospital, Konkuk University, Seoul, South Korea
- *Correspondence: Sun Hee Do
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Fan Y, Yang J, Song X, He J, Huang S, Chen J, Jiang S, Yu L, Zhou Y, Cao X, Ji X, Zhang Y. Systematic analysis of inflammation and pain pathways in a mouse model of gout. Mol Pain 2022; 18:17448069221097760. [PMID: 35430901 PMCID: PMC9069606 DOI: 10.1177/17448069221097760] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Gout is a prevalent and painful inflammatory arthritis, and its global burden continues to rise. Intense pain induced by gout attacks is a major complication of gout. However, systematic studies of gout inflammation and pain are lacking. Using a monosodium urate (MSU) crystal-induced gout model, we performed genome-wide transcriptome analysis of the inflamed ankle joint, dorsal root ganglion (DRG), and spinal cord of gouty mice. Our results revealed important transcriptional changes, including highly elevated inflammation and broad activation of immune pathways in both the joint and the nervous system, in gouty mice. Integrated analysis showed that there was a remarkable overlap between our RNAseq and human genome-wide association study (GWAS) of gout; for example, the risk gene, stanniocalcin-1 (STC1) showed significant upregulation in all three tissues. Interestingly, when compared to the transcriptomes of human osteoarthritis (OA) and rheumatoid arthritis (RA) joint tissues, we identified significant upregulation of cAMP/cyclic nucleotide-mediated signaling shared between gouty mice and human OA with high knee pain, which may provide excellent drug targets to relieve gout pain. Furthermore, we investigated the common and distinct transcriptomic features of gouty, inflammatory pain, and neuropathic pain mouse models in their DRG and spinal cord tissues. Moreover, we discovered distinct sets of genes with significant differential alternative splicing or differential transcript usage in each tissue, which were largely not detected by conventional differential gene expression analysis approaches. Based on these results, our study provided a more accurate and comprehensive depiction of transcriptomic alterations related to gout inflammation and pain.
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Affiliation(s)
| | | | | | | | | | | | | | - Lei Yu
- Wenzhou Medical University
| | | | | | | | - Yi Zhang
- Institute of Genomic MedicineWenzhou Medical University
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Ouyang X, Li NZ, Guo MX, Zhang MM, Cheng J, Yi LT, Zhu JX. Active Flavonoids From Lagotis brachystachya Attenuate Monosodium Urate-Induced Gouty Arthritis via Inhibiting TLR4/MyD88/NF-κB Pathway and NLRP3 Expression. Front Pharmacol 2021; 12:760331. [PMID: 34803702 PMCID: PMC8602055 DOI: 10.3389/fphar.2021.760331] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/11/2021] [Indexed: 01/05/2023] Open
Abstract
Lagotis brachystachya Maxim is a characteristic herb commonly used in Tibetan medicine. Tibetan medicine records it as an important medicine for the clinical treatment of “Yellow Water Disease,” the symptoms of which are similar to that of arthritis. Our previous study showed that the flavonoid fraction extracted from L. brachystachya could attenuate hyperuricemia. However, the effects of the active flavonoids on gouty arthritis remain elusive, and the underlying mechanism is not understood. In the present study, the effects of the active flavonoids were evaluated in rats or Raw264.7 cells with gouty arthritis induced by monosodium urate (MSU) crystal, followed by the detection of TLR4, MyD88, pNF-κB, and NLR family pyrin domain-containing 3 (NLRP3) expression. The swelling of the ankle joint induced by MSU crystal began to be relieved 6 h post the administration with the active flavonoids. In addition, the active flavonoids not only alleviated MSU crystal-induced inflammation in synovial tissues by histopathological examination but also reduced tumor necrosis factor alpha (TNF-α) and interleukin-1 beta (IL-1β) levels in the joint tissue fluid of MSU crystal-induced rats. Furthermore, Western blot analysis indicated that the active flavonoids reduced the production of these cytokines by inhibiting the TLR4/MyD88/NF-κB pathway and decreasing NLRP3 expression in synovial tissues of rats. More importantly, the inhibition of TLR4/MyD88/NF-κB pathway and NLRP3 expression was also confirmed in MSU-induced Raw264.7 cells. In conclusion, these results indicated that the active flavonoids from L. brachystachya could effectively attenuate gouty arthritis induced by MSU crystal through the TLR4/MyD88/NF-κB pathway and NLRP3 expression in vivo and in vitro, suggesting several potential candidates for the treatment of gouty arthritis.
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Affiliation(s)
- Xiang Ouyang
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Na-Zhi Li
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Min-Xia Guo
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
| | - Man-Man Zhang
- Department of Chemical and Pharmaceutical Engineering, Huaqiao University, Xiamen, China
| | - Jie Cheng
- Department of Chemical and Pharmaceutical Engineering, Huaqiao University, Xiamen, China
| | - Li-Tao Yi
- Department of Chemical and Pharmaceutical Engineering, Huaqiao University, Xiamen, China
| | - Ji-Xiao Zhu
- Research Center of Natural Resources of Chinese Medicinal Materials and Ethnic Medicine, Jiangxi University of Chinese Medicine, Nanchang, China
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A novel parameter derived from post-processing procedure of dual energy CT for identification of gout. Sci Rep 2021; 11:21548. [PMID: 34732820 PMCID: PMC8566557 DOI: 10.1038/s41598-021-01100-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 10/20/2021] [Indexed: 11/13/2022] Open
Abstract
ROI analysis is frequently used for obtaining acid content on rapid-kV-switching dual energy CT (DECT), providing inadequate accuracy. A new parameter derived from post-processing procedure, maximum lower limit with stain visible (MLLSV), was used by us to diagnose gout. 30 gout patients and 20 healthy volunteers were analyzed by using MLLSV. MLLSV was defined as the maximum lower limit of display window allowing only one stained site visible. Radiologists were asked to continuously increase the lower limit of display window of uric acid to decrease number of stained sites until the last stained site disappeared. MLLSV obtained by this way was compared between gout patients and volunteers. Receiver operating characteristic (ROC) curve was used to determine the performance. MLLSV of gout patients was significantly higher than that of volunteers (1373.3 ± 23.0 mg/cm3 vs. 1315.4 ± 20.7 mg/cm3, p = 0.000). The area under ROC curve of MLLSV was 0.993 in identifying gout. When using the optimal cutoff of 1342 mg/cm3, the sensitivity and specificity of MLLSV in identification of gout were 96.7% and 95% respectively. MLLSV derived from post-processing procedure of DECT is useful in discriminating gout patients from healthy people.
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11
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Bao W, Xue Y, Cheng X, Wang P, Yin B, Su Y, Jia C. Gout-associated uric acid crystals induce tophi ulcerations and impair wound healing in a novel gouty ulcer model. Wound Repair Regen 2021; 30:132-139. [PMID: 34665905 DOI: 10.1111/wrr.12973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 09/12/2021] [Accepted: 09/16/2021] [Indexed: 12/27/2022]
Abstract
This study aimed to establish a novel gouty ulcer rat model induced by monosodium urate (MSU) deposition and preliminarily explored how MSU crystals affected wound healing. MSU crystals were subcutaneously injected into the back of rats to simulate tophi formation and ulceration. Ultrasound was used to detect the formation of gouty tophi. MSU crystal deposition and histopathological changes were analysed by haematoxylin-eosin staining. After the skin over the tophi became broken in the model group, a full-thickness tissue defect of the same area was made on the backs of the phosphate buffered saline (PBS) controls. On Days 3, 7, and 14 after wounding, the infiltration of neutrophils and macrophages and the expression of inflammatory markers, including interleukin-1β (IL-1β), tumour necrosis factor-α (TNF-α), and Nod-like receptor protein 3 (NLRP3), were examined by immunohistochemical staining and Western blotting, respectively. After the first subcutaneous injection in rats, local tissues showed redness and swelling, indicating inflammation on approximately Day 14. Tophi-like manifestations appeared on approximately Day 18. Tophi appeared heterogeneously hyperechoic by ultrasound. Swelling and redness in injured tissue areas increased on approximately Day 22, skin tissue necrosis was seen in a small area on approximately Day 26, and skin necrosis was enlarged and the tophi were ulcerated on approximately Day 32, accompanied by yellowish-white, chalky secretions. Haematoxylin and eosin staining showed dermal deposition of needle-like crystals with surrounding granulomatous inflammation. On Days 3, 7, and 14 after wounding, immunohistochemical staining showed the infiltration of neutrophils and macrophages, and the expression of inflammation-related proteins (IL-1β, TNF-α, and NLRP3) were upregulated in gouty ulcers compared with those of PBS controls. The gouty ulcers were not completely healed by Day 14 compared with those in the PBS controls. In this study, a novel gouty ulcer rat model was constructed, which also revealed the existence of persistent chronic inflammation.
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Affiliation(s)
- Wu Bao
- School of Medicine, Xiamen University, Xiamen, China
| | - Yi Xue
- School of Medicine, Xiamen University, Xiamen, China
| | - Xialin Cheng
- School of Medicine, Xiamen University, Xiamen, China
| | - Peng Wang
- School of Medicine, Xiamen University, Xiamen, China
| | - Bin Yin
- School of Medicine, Xiamen University, Xiamen, China
| | - Yingjun Su
- Department of Burns and Plastic and Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
| | - Chiyu Jia
- Department of Burns and Plastic and Wound Repair Surgery, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China
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Fan HF, Fang XY, Wu HL, Xu YQ, Gong LC, Yu DR, Jia H, Tang XL, Liu QB. Effects of Stephania hainanensis alkaloids on MSU-induced acute gouty arthritis in mice. BMC Complement Med Ther 2021; 21:202. [PMID: 34284768 PMCID: PMC8293507 DOI: 10.1186/s12906-021-03364-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 06/24/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Gout is initiated by the precipitation of monosodium urate (MSU) crystals within the joints and soft tissues, and it can eventually cause acute or chronic arthritis. MSU crystals trigger, amplify, and maintain a strong inflammatory response through promoting proinflammatory activity. In this study, the therapeutic effects of Stephania hainanensis (S. hainanensis) total alkaloid (SHA) were tested and evaluated on MSU-induced acute gouty arthritis in a mouse model. METHODS After oral administration of SHA (10 or 20 mg/kg) or the antigout medicine colchicine (0.5 mg/kg) once daily for 3 consecutive days, MSU crystals suspended in saline (2.5 mg/50 μl) were intradermally injected into the right paw of the mice. Then, SHA and colchicine were administered for another 2 days. During this period, swelling of the ankle and clinical scores were measured at 12, 24, and 48 h postinjection. After the mice were euthanized, inflammatory cytokine expression and paw tissue inflammation-related gene and protein expression, and a histopathological analysis was performed. RESULTS SHA had obvious therapeutic effects on MSU-induced acute gouty arthritis in mice. SHA alleviated ankle swelling and inhibited the production of cytokines, such as IL-1β and TNF-α. In addition, NLRP3, Caspase-1 and IL-1β, which are activated by MSU were also suppressed by SHA. The histological evaluation showed that SHA relieved the infiltration of inflammation around the ankle. CONCLUSIONS These results suggest that SHA is capable of anti-inflammatory activities and may be useful for treating gouty arthritis.
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Affiliation(s)
- Hao-Fei Fan
- Department of Pharmacology, School of Basic and Life Science, Hainan Medical University, Haikou, 571199, China
| | - Xing-Yue Fang
- HMC Cancer Institute, The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Hao-Lin Wu
- Department of Pharmacology, School of Basic and Life Science, Hainan Medical University, Haikou, 571199, China
| | - Yi-Qian Xu
- Department of Pharmacology, School of Basic and Life Science, Hainan Medical University, Haikou, 571199, China
| | - Li-Chong Gong
- Martinos Center for Biomedical Imaging, Massachusetts General Hospital and Harvard Medical School, Boston, MA, 02129, USA
| | - Dao-Rui Yu
- Department of Pharmacology, School of Basic and Life Science, Hainan Medical University, Haikou, 571199, China
| | - Hao Jia
- Department of Pharmacology, School of Basic and Life Science, Hainan Medical University, Haikou, 571199, China
| | - Xiao-Liang Tang
- School of Traditional Chinese Medicine, Hainan Medical University, Haikou, 571199, China.
| | - Qi-Bing Liu
- Department of Pharmacology, School of Basic and Life Science, Hainan Medical University, Haikou, 571199, China.
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Minimally Invasive Embedding of Saturated MSU Induces Persistent Gouty Arthritis in Modified Rat Model. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6641701. [PMID: 34212036 PMCID: PMC8208862 DOI: 10.1155/2021/6641701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Accepted: 05/28/2021] [Indexed: 11/20/2022]
Abstract
Introduction Animal models are valid for in vivo research on the pathophysiological process and drug screening of gout arthritis. Intra-articular injection of monosodium urate (MSU) is the most common method, while stable MSU deposition enveloped by inflammatory cells was rarely reported. Objective To develop a modified gouty arthritis rat model characterized by intra-articular MSU deposition and continuous joint pain with a minimally invasive method. Method A total of twenty-four rats were randomly allocated into six groups. Three intervention groups of rats received intra-articular MSU embedment. Sham groups received pseudosurgeries with equal normal saline (NS). Gross parameters and pathological features of synovium harvested from anterior capsule were estimated. Mechanical pain threshold tests were conducted over a 96-hour period postoperatively. Moreover, quantitative immunofluorescence was conducted to assess tissue inflammation. Result After MSU embedding, rats got more persistent arthritic symptoms as well as tissue MSU deposition. More significant synovial swelling was detected in the MSU group compared to sham groups (P < 0.025). Behavioral tests showed that the embedding of MSU resulted in prolonged mechanical hyperalgesia during 2 hours to 96 hours postoperatively (P < 0.05). MSU depositions enveloped by inflammatory cells that express IL-1β and TNF-α were detected in embedding groups. Quantitative immunofluorescence suggested that the frequencies of MSU interventions upregulated expression of proinflammatory factors including IL-1β and TNF-α (P < 0.05). Conclusion A minimally invasive method was developed to establish modified rat model of intra-articular MSU deposition. This model was proved to be a simple reproducible method to mimic the pathological characteristics of persistent gouty arthritis.
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Tavares ALDF, Reginato A, Neves M, Pradal LDA, Leal TSDS, Ribeiro LDFC, Menolli RA, Bertolini GRF. Analysis of Wistar Rats Submitted to a Gout Model, Treated with Double Cryotherapy Protocol. Ther Hypothermia Temp Manag 2021; 12:30-37. [PMID: 33904783 DOI: 10.1089/ther.2021.0001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Gout arthritis commonly affects joint regions by deposition of crystals, promoting functional damage mainly during periods of exacerbation. Cryotherapy is a commonly used resource to contain inflammatory processes, however, its use during a gout crisis is not yet well understood. Therefore, the objective was to evaluate the parameters of Wistar rats submitted to an experimental gout model and treated with dual cryotherapy protocol. Twenty-one male Wistar rats were used, separated into three groups: control group (CG), lesion group (LG), and lesion + cryotherapy group (LCG). Gout model induction was through intra-articular injection, with urate crystal solution, in the right knee and cryoimmersion treatment was performed for 20 minutes at a temperature of 5° ± 2°C. Seven evaluations and two treatment moments were performed, and the following parameters were analyzed: joint edema, grip strength, joint disability, motor function, and leukocyte migration through synovial lavage. In the statistical analysis we used SPSS 20.0 with Generalized Linear Models, with least significant difference posttest, always with 5% significance level. The treatment reduced edema, promoted strength recovery, and was effective in reducing total leukocytes in the synovial fluid. No difference was observed between the injured groups for joint disability and motor function. Cryotherapy promoted edema reduction and increased pelvic limb grip strength in Wistar rats during the acute period.
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Affiliation(s)
| | - Aline Reginato
- Universidade Estadual do Oeste do Paraná-Unioeste, Cascavel, Brazil
| | - Morgana Neves
- Universidade Estadual do Oeste do Paraná-Unioeste, Cascavel, Brazil
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Performance of Ultrasound in the Clinical Evaluation of Gout and Hyperuricemia. J Immunol Res 2021; 2021:5550626. [PMID: 33884273 PMCID: PMC8041551 DOI: 10.1155/2021/5550626] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/02/2021] [Accepted: 03/22/2021] [Indexed: 12/27/2022] Open
Abstract
Objective To evaluate monosodium urate (MSU) crystal deposition and related lesions in the joints of patients with gout and hyperuricemia (HUA) using ultrasound. To explore the association between ultrasound findings and clinical features in gout and HUA. Methods A total of 202 patients with gout and 43 asymptomatic patients with HUA were included. The clinical data and ultrasonic assessment results were collected and statistically analyzed. Results Deposition of MSU crystals was found in 25.58% (11/43) of patients with asymptomatic HUA and 76.24% (154/202) of patients with gout. Of the 1,082 joints from patients with gout examined, 33.09% (358/1082) displayed MSU crystal deposition. In the joints with MSU crystal deposition, 77.37% (277/358) had a history of attacks. Among the joints of gouty arthritis, double contour sign (DCS), hyperechoic aggregate (HAG), and tophi were found in 32.65% (159/487), 7.80% (38/487), and 24.64% (120/487) of the joints, respectively. DCS and tophi, but not HAG, increasingly appeared with the extension of gout duration. In patients with more than 15 years of gout history, DCS, Tophi, and HAG were found in 48.18%, 40.00%, and 6.36% of US assessed joints, respectively. In patients with gout, synovial lesion and bone erosion were found in 17.74% (192/1082) and 7.58% (82/1082) of joints, respectively. The synovial lesion was related to HAG, while bone erosion was related to tophi and DCS. Nephrolithiasis was detected in 20.30% (41/202) of patients with gout and 4.65% (2/43) of HUA patients, indicating that nephrolithiasis occurred in more patients with gout than in patients with HUA. Conclusion HAG is an early performance of MSU crystal deposition in joints of gout and HUA. Both DCS and tophi are risk factors for bone erosion. Early urate-lowering therapy (ULT) should be considered in patients with gout, DCS, or tophi.
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16
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Mao W, Wu J, Zhang Z, Xu Z, Xu B, Chen M. Neutrophil-lymphocyte ratio acts as a novel diagnostic biomarker for kidney stone prevalence and number of stones passed. Transl Androl Urol 2021; 10:77-86. [PMID: 33532298 PMCID: PMC7844488 DOI: 10.21037/tau-20-890] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background This study evaluated the relationship between inflammatory biomarkers and the prevalence of kidney stones and number of stones passed. Methods We conducted a cross-sectional study of adult participants (≥20 years) in the National Health and Nutrition Examination Survey (NHANES) from 2007 to 2014. We calculated key inflammatory biomarkers, such as the systemic immune-inflammation index (SII), neutrophil-lymphocyte ratio (NLR), platelet-lymphocyte ratio (PLR) and monocyte-lymphocyte ratio (MLR). Multivariate logistic regression analysis was used to determine the effect of inflammatory biomarkers on the prevalence of kidney stones and number of stones passed. Results A total of 21,106 participants were included in the final study, and 1,864 patients reported a history of kidney stones (including 292 who had passed no stones, 1,462 who had passed stones 1-5 times, and 110 who had passed stones >5 times). The chi-square test showed that the NLR, MLR and SII were closely related to the occurrence of kidney stones and the number of stones passed. Multivariate logistic regression analysis showed that a high NLR (>1.72) was associated with an increased prevalence of kidney stones and number of stones passed (OR =1.18, 95% CI: 1.03-1.36, P=0.019). Conclusions A convenient biomarker, the NLR can be used as a good predictor for the diagnosis of kidney stones and number of stones passed; these findings are worthy of further research and application in clinical practice.
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Affiliation(s)
- Weipu Mao
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Jianping Wu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Ziwei Zhang
- Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhipeng Xu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Bin Xu
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Ming Chen
- Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
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17
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Lin X, Shao T, Wen X, Wang M, Wen C, He Z. Combined effects of MSU crystals injection and high fat-diet feeding on the establishment of a gout model in C57BL/6 mice. Adv Rheumatol 2020; 60:52. [PMID: 33148336 DOI: 10.1186/s42358-020-00155-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 10/22/2020] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE Gout is characterized by inflammatory arthritis with hyperuricaemia and deposition of monosodium urate (MSU) crystals in the joints. Several animal models have been proposed based on MSU crystals injection or high-fat diet feeding; however, neither hyperuricaemia model nor acute gout model can effectively reflect clinical features of gout. This study aimed to assess the effectiveness of a compound gout model induced by the combination of MSU crystals injection and high-fat diet feeding. METHODS The compound gout model was induced by high-fat diet feeding per day and the intraplantar injection of MSU crystals (1 mg) into the footpad of each mouse every 10 days. Serum uric acid, foot swelling and pain analyses were performed at days 22, 32 and 42. Gout inflammation, serum proinflammatory cytokines and gut microbiota analyses were performed only at day 42. RESULTS Compared to hyperuricaemia model or acute gout model, the compound gout model showed little advantages of elevating serum uric acid, causing foot swelling and gout inflammation, while it caused more severe serum inflammation and gut microbiota dysbiosis. Severe serum inflammation in the compound gout model could be reflected by the increased levels of IL-1α, IL-4, IL-6, IL-10, IL-12p40, IL-12p70, IFN-γ, KC, MCP-1 and MIP-1β. In addition, the compound gout model induced more alterations in the gut microbiota, including increasing levels of Desulfovibrio and Parasutterella. CONCLUSION The injection of MSU and feed of high-fat diet have a combined effect on elevating serum inflammation and causing gut microbiota disorders in the process of establishing a gout model.
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Affiliation(s)
- Xiaoying Lin
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Tiejuan Shao
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Xianghui Wen
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Mingzhu Wang
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Chengping Wen
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Zhixing He
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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Barazani SH, Chi WW, Pyzik R, Chang H, Jacobi A, O’Donnell T, Fayad ZA, Ali Y, Mani V. Quantification of uric acid in vasculature of patients with gout using dual-energy computed tomography. World J Radiol 2020; 12:184-194. [PMID: 32913564 PMCID: PMC7457162 DOI: 10.4329/wjr.v12.i8.184] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 06/16/2020] [Accepted: 07/19/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Gout, caused by hyperuricemia and subsequent deposition of aggregated monosodium urate crystals (MSU) in the joints or extra-articular regions, is the most common inflammatory arthritis. There is increasing evidence that gout is an independent risk factor for hypertension, cardiovascular disease progression and mortality.
AIM To evaluate if dual energy computed tomography (DECT) could identify MSU within vessel walls of gout patients, and if MSU deposits within the vasculature differed between patients with gout and controls. This study may help elucidate why individuals with gout have increased risk for cardiovascular disease.
METHODS 31 gout patients and 18 controls underwent DECT scans of the chest and abdomen. A material decomposition algorithm was used to distinguish regions of MSU (coded green), and calcifications (coded purple) from soft tissue (uncoded). Volume of green regions was calculated using a semi-automated volume assessment program. Between-group differences were analyzed using Mann-Whitney U exact test and nonparametric rank regression.
RESULTS Gout patients had significantly higher volume of MSU within the aorta compared to controls [Median (Min-Max) of 43.9 (0-1113.5) vs 2.9 (0-219.4), P = 0.01]. Number of deposits was higher in gout patients compared to controls [Median (Min-Max) of 20 (0-739) vs 1.5 (0-104), P = 0.008]. However, the difference was insignificant after adjustment for age, gender, history of cardiovascular disease and diabetes. Increased age was positively associated with total urate volume (rs = 0.64; 95% confidence interval: 0.43-0.78).
CONCLUSION This pilot study showed that DECT can quantify vascular urate deposits with variation across groups, with gout patients possibly having higher deposition. This relationship disappeared when adjusted for age, and there was a positive relationship between age and MSU deposition. While this study does not prove that green coded regions are truly MSU deposition, it corroborates recent studies that show the presence of vascular deposition.
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Affiliation(s)
- Sharon Hannah Barazani
- Department of Radiology, Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Wei-Wei Chi
- Division of Rheumatology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Renata Pyzik
- Department of Radiology, Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Helena Chang
- Center for Biostatistics, Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Adam Jacobi
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | | | - Zahi A Fayad
- Department of Radiology, Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Yousaf Ali
- Division of Rheumatology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
| | - Venkatesh Mani
- Department of Radiology, Translational and Molecular Imaging Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
- Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
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Lin YY, Jean YH, Lin SC, Feng CW, Kuo HM, Lai YC, Kuo TJ, Chen NF, Lee HP, Wen ZH. Etoricoxib prevents progression of osteolysis in repeated intra-articular monosodium urate-induced gouty arthritis in rats. J Adv Res 2020; 24:109-120. [PMID: 32257433 PMCID: PMC7114632 DOI: 10.1016/j.jare.2020.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/23/2020] [Accepted: 02/25/2020] [Indexed: 12/27/2022] Open
Abstract
Deposition of monosodium urate (MSU) crystals in the joint or synovium is the major factor in Gouty arthritis (GA). The clinical features of chronic and recurrent GA include pain and the subsequent development of chronic tophaceous GA with multiple tophi deposits accompanied by osteolysis. The majority of previous animal studies have focused on MSU-induced acute GA without making observations regarding osteolysis. In the study, intra-articular injections of MSU into the knee (2 times/week for 10 weeks) was used to induce chronic and recurrent attacks of GA that in turn induced progressive osteolysis. Moreover, we also evaluated whether the clinical, nonsteroidal anti-inflammatory drug (NSAID) etoricoxib attenuated the osteoclastogenesis of progressive osteolysis. The knee morphometry and the expression of osteoclastogenesis-related proteins (cathepsin K and matrix metalloproteinase-9 and -13) in the knee were examined by micro-CT and immunohistochemistry, respectively. Results showed that oral etoricoxib not only significantly attenuated the nociceptive behaviors of the rats but that it also inhibited the expression of osteoclastogenesis-related proteins in their knee joints in chronic and recurrent attacks of GA. Our findings thus suggest that NSAIDs not only inhibit nociception but also prevent the progression of osteolysis in chronic and repeated attacks of GA.
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Affiliation(s)
- Yen-You Lin
- Department of Sports Medicine, China Medical University, No. 91 Hsueh-Shih Road, Taichung 40402, Taiwan
| | - Yen-Hsuan Jean
- Department of Orthopedic Surgery, Pingtung Christian Hospital, Pingtung, No. 60, Dalian Road, Pingtung 90059, Taiwan
| | - Sung-Chun Lin
- Department of Orthopedic Surgery, Pingtung Christian Hospital, Pingtung, No. 60, Dalian Road, Pingtung 90059, Taiwan
| | - Chien-Wei Feng
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No.100, Tzyou 1st Rd., Sanmin Dist., Kaohsiung City 80756, Taiwan
| | - Hsiao-Mei Kuo
- Center for Neuroscience, National Sun Yat-sen University, No.70, Lianhai Road, Gushan District, Kaohsiung 80424, Taiwan
| | - Yu-Cheng Lai
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, No.70, Lianhai Road, Gushan District, Kaohsiung 80424, Taiwan
- Department of Orthopedics, Kaohsiung Veterans General Hospital, No.386, Dazhong 1st Road, Zuoying District, Kaohsiung 81362, Taiwan
| | - Tsu-Jen Kuo
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, No.70, Lianhai Road, Gushan District, Kaohsiung 80424, Taiwan
- Department of Stomatology, Kaohsiung Veterans General Hospital, No.386, Dazhong 1st Road, Zuoying District, Kaohsiung 81362, Taiwan
| | - Nan-Fu Chen
- Division of Neurosurgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, #2, Zhongzheng 1st Road, Lingya District, Kaohsiung 802, Taiwan
| | - Hsin-Pai Lee
- Department of Orthopedic Surgery, Pingtung Christian Hospital, Pingtung, No. 60, Dalian Road, Pingtung 90059, Taiwan
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-Sen University, No.70, Lianhai Road, Gushan District, Kaohsiung 80424, Taiwan
- Institute of BioPharmaceutical Sciences, National Sun Yat-sen University, No.70, Lianhai Road, Gushan District, Kaohsiung 80424, Taiwan
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Stewart S, Maxwell H, Dalbeth N. Prevalence and discrimination of OMERACT-defined elementary ultrasound lesions of gout in people with asymptomatic hyperuricaemia: A systematic review and meta-analysis. Semin Arthritis Rheum 2019; 49:62-73. [PMID: 30709689 DOI: 10.1016/j.semarthrit.2019.01.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 12/05/2018] [Accepted: 01/08/2019] [Indexed: 02/09/2023]
Abstract
OBJECTIVES Ultrasound lesions of gout have been described in people with asymptomatic hyperuricemia. However, the anatomical sites and ultrasound lesions most frequently involved in asymptomatic hyperuricemia have not yet been established. This systematic review and meta-analysis aimed to determine the prevalence of the Outcome Measures in Rheumatology (OMERACT) elementary ultrasound lesions of gout (double contour, aggregates, tophus, erosion) at various sites in people with asymptomatic hyperuricemia and to determine which sites and lesions discriminate from people with normouricemia. METHODS A systematic search of electronic databases, conference abstracts and reference lists was undertaken. Studies were included if they used ultrasound to image people with asymptomatic hyperuricemia and reported ≥1 OMERACT-defined lesion of gout. Meta-analyses were undertaken for the pooled prevalence of site-specific lesions in people with asymptomatic hyperuricemia, and the pooled odds ratios of these lesions compared to people with normouricemia. RESULTS Twenty studies were included. The most common site scanned was the first metatarsophalangeal joint (1MTP) (n = 17 studies) and the most common lesion reported, the double contour (n = 18). Meta-analyses of pooled prevalence showed 1MTP double contour was the most frequent finding in people with asymptomatic hyperuricemia (0.31, 95% confidence interval (CI) 0.20-0.42), followed by femoral condyle double contour (0.16, 95%CI 0.08-0.24) and 1MTP tophus (0.16, 95%CI 0.03-0.29). The highest pooled odds ratios for asymptomatic hyperuricemia vs. normouricemia were 6.98 (95%CI 3.14-15.57) for 1MTP double contour, 13.67 (95%CI 5.42-34.49) for femoral condyle double contour and 6.10 (95%CI 1.55-24.04) for 1MTP tophus. CONCLUSION In people with asymptomatic hyperuricemia, scanning of the 1MTP and femoral condyle for double contour, plus the 1MTP for tophus, has the highest prevalence and discrimination compared to those with normouricemia.
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Affiliation(s)
- Sarah Stewart
- Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.
| | - Hannah Maxwell
- Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Nicola Dalbeth
- Faculty of Medical and Health Sciences, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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Hu Y, Yang Q, Gao Y, Guo X, Liu Y, Li C, Du Y, Gao L, Sun D, Zhu C, Yan M. Better understanding of acute gouty attack using CT perfusion in a rabbit model. Eur Radiol 2018; 29:3308-3316. [PMID: 30519936 DOI: 10.1007/s00330-018-5871-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 10/16/2018] [Accepted: 10/31/2018] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To assess hemodynamic changes related to acute gouty knee arthritis in a rabbit with CT perfusion (CTP) METHODS: Forty-two rabbits were randomly separated into two groups: the treated group of 30 and the control group of 12. The right knee was injected with monosodium urate solution and polymyxin in the treated group and saline and polymyxin in the control group. At 2, 16, 32, 48, 60, and 72 h after injection, five rabbits from the treated group and two rabbits from the control group were selected for CTP. At each time point, blood flow (BF), blood volume (BV), and clearance rate (CL) were measured, and microvessel density (MVD) was evaluated with a microscope. RESULTS In the treated group, BF, BV, CL, and MVD were significantly higher than in the control group (p < 0.001). Differences within paired comparison of BV, BF, CL, and MVD were all significant (all p < 0.001). Peak time of BV, BF, and MVD was 32 h and 48 h for CL. After multivariate stepwise linear regression analysis, BV was linearly associated with MVD and vice versa, which also applied to BF with MVD and BF with CL, separately. The ascending rate of MVD was the highest among that of all parameters; so was the descending rate of CL. CONCLUSION CTP in this rabbit knee model accurately detected hemodynamic changes during a gouty attack. KEY POINTS • Acute gouty arthritis can be evaluated with CTP in a rabbit knee model. • Following injection of MSU crystals, producing an acute gouty attack, CTP successfully assessed hemodynamic changes. • The ascending rate of MVD was the highest among that of all parameters; so was the descending rate of CL.
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Affiliation(s)
- Yabin Hu
- Department of Radiology, Affiliated Hospital (Laoshan Hospital) of Qingdao University, Qingdao, 266000, Shandong, China
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai, China
| | - Qing Yang
- Department of Radiology, Affiliated Hospital (Laoshan Hospital) of Qingdao University, Qingdao, 266000, Shandong, China.
| | - Yanyan Gao
- Department of Endocrinology, Affiliated Hospital (Laoshan Hospital) of Qingdao University, Qingdao, Shandong, China
| | - Xuexin Guo
- Department of Radiology, Dongying People's Hospital, Dongying, Shandong, China
| | - Yongjian Liu
- Department of Radiology, Hiser Medical Center of Qingdao, Qingdao, Shandong, China
| | - Can Li
- Department of CT, Juancheng People's Hospital, Juancheng, Heze, Shandong, China
| | - Yanmeng Du
- CT scan Room, Jinan Fourth Hospital, Jinan, Shandong, China
| | - Lei Gao
- Department of CT, The Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Dezheng Sun
- Department of Radiology, Qingdao Municipal Hospital, Qingdao, Shandong, China
| | - Congcong Zhu
- Department of Radiology, Affiliated Hospital (Laoshan Hospital) of Qingdao University, Qingdao, 266000, Shandong, China
| | - Mi Yan
- Department of Radiology, Affiliated Hospital (Laoshan Hospital) of Qingdao University, Qingdao, 266000, Shandong, China
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Naredo E, Medina JP, Pérez-Baos S, Mediero A, Herrero-Beaumont G, Largo R. Validation of Musculoskeletal Ultrasound in the Assessment of Experimental Gout Synovitis. ULTRASOUND IN MEDICINE & BIOLOGY 2018; 44:1516-1524. [PMID: 29703511 DOI: 10.1016/j.ultrasmedbio.2018.03.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 03/20/2018] [Accepted: 03/21/2018] [Indexed: 06/08/2023]
Abstract
The objective of this study was to validate musculoskeletal ultrasound (US) in a rabbit model of acute gout. Acute gout was induced by intra-articular injection of monosodium urate (MSU) crystals in 10 rabbits; the 3 controls received vehicle. Rabbit knees were assessed by B-mode and power Doppler (PD) US 24 and 72 h after injections. After 72 h, all rabbits were euthanized. US discriminated between the MSU-injected and control groups with respect to the different inflammatory findings at both at 24 and 72 h and for MSU crystal-related findings after 24 h of injection. US synovial thickening, intra-synovial power Doppler signal and global joint distension significantly correlated with the synovial global histopathological score (r = 0.47, p = 0.0188), tissue vascularization measured by CD31 immunohistochemical-positive staining (r = 0.46, p = 0.0172) and tissue levels of interleukin-1β (r = 0.53, p = 0.0078), respectively. US is a valid method for assessment of synovial inflammation in experimental gouty arthritis in rabbits.
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Affiliation(s)
- Esperanza Naredo
- Bone and Joint Research Unit, Department of Rheumatology, Hospital Universitario Fundación Jiménez Díaz, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - Juan Pablo Medina
- Bone and Joint Research Unit, Department of Rheumatology, Hospital Universitario Fundación Jiménez Díaz, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - Sandra Pérez-Baos
- Bone and Joint Research Unit, Department of Rheumatology, Hospital Universitario Fundación Jiménez Díaz, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - Aranzazu Mediero
- Bone and Joint Research Unit, Department of Rheumatology, Hospital Universitario Fundación Jiménez Díaz, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
| | - Gabriel Herrero-Beaumont
- Bone and Joint Research Unit, Department of Rheumatology, Hospital Universitario Fundación Jiménez Díaz, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain.
| | - Raquel Largo
- Bone and Joint Research Unit, Department of Rheumatology, Hospital Universitario Fundación Jiménez Díaz, IIS-Fundación Jiménez Díaz UAM, Madrid, Spain
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Dalbeth N, Doyle AJ. Imaging tools to measure treatment response in gout. Rheumatology (Oxford) 2018; 57:i27-i34. [PMID: 29272513 DOI: 10.1093/rheumatology/kex445] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Indexed: 12/13/2022] Open
Abstract
Imaging tests are in clinical use for diagnosis, assessment of disease severity and as a marker of treatment response in people with gout. Various imaging tests have differing properties for assessing the three key disease domains in gout: urate deposition (including tophus burden), joint inflammation and structural joint damage. Dual-energy CT allows measurement of urate deposition and bone damage, and ultrasonography allows assessment of all three domains. Scoring systems have been described that allow radiological quantification of disease severity and these scoring systems may play a role in assessing the response to treatment in gout. This article reviews the properties of imaging tests, describes the available scoring systems for quantification of disease severity and discusses the challenges and controversies regarding the use of imaging tools to measure treatment response in gout.
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Affiliation(s)
- Nicola Dalbeth
- Department of Medicine, University of Auckland, Auckland, New Zealand
| | - Anthony J Doyle
- Department of Anatomy and Medical Imaging, University of Auckland, Auckland, New Zealand
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Liang D, Yong T, Chen S, Xie Y, Chen D, Zhou X, Li D, Li M, Su L, Zuo D. Hypouricemic Effect of 2,5-Dihydroxyacetophenone, a Computational Screened Bioactive Compound from Ganoderma applanatum, on Hyperuricemic Mice. Int J Mol Sci 2018; 19:ijms19051394. [PMID: 29735945 PMCID: PMC5983617 DOI: 10.3390/ijms19051394] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/26/2018] [Accepted: 05/03/2018] [Indexed: 12/20/2022] Open
Abstract
Searching novel hypouricemic agents of high efficacy and safety has attracted a great attention. Previously, we reported the hypouricemic effect of Ganoderma applanatum, but its bioactives, was not referred. Herein, we report the hypouricemic effect of 2,5-dihydroxyacetophenone (DHAP), a compound screened from Ganoderma applanatum computationally. Serum parameters, such as uric acid (SUA), xanthine oxidase (XOD) activity, blood urea nitrogen (BUN), and creatinine were recorded. Real-time reverse transcription PCR (RT-PCR) and Western blot were exploited to assay RNA and protein expressions of organic anion transporter 1 (OAT1), glucose transporter 9 (GLUT9), uric acid transporter 1 (URAT1), and gastrointestinal concentrative nucleoside transporter 2 (CNT2). DHAP at 20, 40, and 80 mg/kg exerted excellent hypouricemic action on hyperuricemic mice, reducing SUA from hyperuricemic control (407 ± 31 μmol/L, p < 0.01) to 180 ± 29, 144 ± 13, and 139 ± 31 μmol/L, respectively. In contrast to the renal toxic allopurinol, DHAP showed some kidney-protective effects. Moreover, its suppression on XOD activity, in vivo and in vitro, suggested that XOD inhibition may be a mechanism for its hypouricemic effect. Given this, its binding mode to XOD was explored by molecular docking and revealed that three hydrogen bonds may play key roles in its binding and orientation. It upregulated OAT1 and downregulated GLUT9, URAT1, and CNT2 too. In summary, its hypouricemic effect may be mediated by regulation of XOD, OAT1, GLUT9, URAT1, and CNT2.
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Affiliation(s)
- Danling Liang
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
- Guangdong Yuewei Edible Fungi Technology Co., Guangzhou 510663, China.
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application and Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China.
| | - Tianqiao Yong
- Guangdong Yuewei Edible Fungi Technology Co., Guangzhou 510663, China.
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application and Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China.
| | - Shaodan Chen
- Guangdong Yuewei Edible Fungi Technology Co., Guangzhou 510663, China.
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application and Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China.
| | - Yizhen Xie
- Guangdong Yuewei Edible Fungi Technology Co., Guangzhou 510663, China.
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application and Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China.
| | - Diling Chen
- Guangdong Yuewei Edible Fungi Technology Co., Guangzhou 510663, China.
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application and Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China.
| | - Xinxin Zhou
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
| | - Dan Li
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
- Guangdong Yuewei Edible Fungi Technology Co., Guangzhou 510663, China.
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application and Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China.
| | - Muxia Li
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
- Guangdong Yuewei Edible Fungi Technology Co., Guangzhou 510663, China.
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application and Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China.
| | - Lu Su
- Guangdong Yuewei Edible Fungi Technology Co., Guangzhou 510663, China.
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application and Guangdong Open Laboratory of Applied Microbiology, Guangdong Institute of Microbiology, Guangzhou 510070, China.
| | - Dan Zuo
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou 510530, China.
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Li B, Yuan Z, Zhang P, Sinclair A, Jain P, Wu K, Tsao C, Xie J, Hung HC, Lin X, Bai T, Jiang S. Zwitterionic Nanocages Overcome the Efficacy Loss of Biologic Drugs. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705728. [PMID: 29457278 DOI: 10.1002/adma.201705728] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 12/30/2017] [Indexed: 06/08/2023]
Abstract
For biotherapeutics that require multiple administrations to fully cure diseases, the induction of undesirable immune response is one common cause for the failure of their treatment. Covalent binding of hydrophilic polymers to proteins is commonly employed to mitigate potential immune responses. However, while this technique is proved to partially reduce the antibodies (Abs) reactive to proteins, it may induce Abs toward their associated polymers and thus result in the loss of efficacy. Zwitterionic poly(carboxybetaine) (PCB) is recently shown to improve the immunologic properties of proteins without inducing any antipolymer Abs against itself. However, it is unclear if the improved immunologic profiles can translate to better clinical outcomes since improved immunogenicity cannot directly reflect amelioration in efficacy. Here, a PCB nanocage (PCB NC) is developed, which can physically encase proteins while keeping their structure intact. PCB NC encapsulation of uricase, a highly immunogenic enzyme, is demonstrated to eradicate all the immune responses. To bridge the gap between immunogenicity and efficacy studies, the therapeutic performance of PCB NC uricase is evaluated and compared with its PEGylated counterpart in a clinical-mimicking gouty rat model to determine any loss of efficacy evoked after five administrations.
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Affiliation(s)
- Bowen Li
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
| | - Zhefan Yuan
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Peng Zhang
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Andrew Sinclair
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Priyesh Jain
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Kan Wu
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Caroline Tsao
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Jingyi Xie
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
| | - Hsiang-Chieh Hung
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Xiaojie Lin
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Tao Bai
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Shaoyi Jiang
- Department of Bioengineering, University of Washington, Seattle, WA, 98195, USA
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195, USA
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Value of ultrasonography in the diagnosis of gout in patients presenting with acute arthritis. Skeletal Radiol 2017; 46:759-767. [PMID: 28275814 DOI: 10.1007/s00256-017-2611-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 02/14/2017] [Accepted: 02/16/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate the value of ultrasonographic features of crystal deposition for diagnosing gout in patients presenting with acute arthritis. MATERIALS AND METHODS Ultrasound scanning of the most inflamed joint was performed on 89 consecutively enrolled patients with acute arthritis. Two radiologists independently reviewed the ultrasound images, and a consensus was achieved with a third radiologist when the interpretations of four key ultrasound features of gout differed. Arthrocentesis and crystal analysis using compensated polarized light microscopy of aspirates are considered the gold standards for gout diagnosis. RESULTS Fifty-three (60%) patients had gout, whereas the remaining 36 (40%) had non-gout arthritis. The mean serum uric acid level was 7.1 mg/dl in patients with gout and 4.7 mg/dl in patients with non-gout arthritis. Three US features differed significantly (p < 0.001) between patients with gout and non-gout arthritis: the double contour sign (42 vs. 8%, respectively), intra-articular aggregates (58 vs. 8%), and tophi (40 vs. 0%). No statistically significant differences in detecting intra-tendinous aggregates (32 vs. 17%, p = 0.14) were observed. The sensitivity and specificity of the double contour sign were 42 and 92%, respectively; those of the intra-articular aggregates were 58 and 92%; and those of tophi were 40 and 100%. The positive predictive values for these three features ranged from 88 to 100%, whereas the negative predictive values ranged from 52 to 60%. CONCLUSIONS When the prevalence is high, these three ultrasound features may be a useful adjunct in the diagnosis of acute gout, particularly when specialized microscopic techniques are not available.
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Wang Y, Luo C, Yang G, Wei X, Liu D, Zhou S. A Luteolin-Loaded Electrospun Fibrous Implantable Device for Potential Therapy of Gout Attacks. Macromol Biosci 2016; 16:1598-1609. [DOI: 10.1002/mabi.201600123] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/03/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Yi Wang
- Key Laboratory of Advanced Technologies of Materials; Ministry of Education; School of Materials Science and Engineering; Southwest Jiaotong University; Chengdu 610031 P. R. China
| | - Chao Luo
- School of Medicine; Tibet University; Lhasa 850012 P. R. China
| | - Guang Yang
- Key Laboratory of Advanced Technologies of Materials; Ministry of Education; School of Materials Science and Engineering; Southwest Jiaotong University; Chengdu 610031 P. R. China
| | - Xiao Wei
- Key Laboratory of Advanced Technologies of Materials; Ministry of Education; School of Materials Science and Engineering; Southwest Jiaotong University; Chengdu 610031 P. R. China
| | - Dian Liu
- Key Laboratory of Advanced Technologies of Materials; Ministry of Education; School of Materials Science and Engineering; Southwest Jiaotong University; Chengdu 610031 P. R. China
| | - Shaobing Zhou
- Key Laboratory of Advanced Technologies of Materials; Ministry of Education; School of Materials Science and Engineering; Southwest Jiaotong University; Chengdu 610031 P. R. China
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Sun N, Zhong S, Li Y, Wu L, Di Y. Urate crystals deposition in the feet of overweight juveniles and those with symptomatic hyperuricemia: a dual-energy CT study. J Pediatr Endocrinol Metab 2016; 29:579-83. [PMID: 26982613 DOI: 10.1515/jpem-2015-0290] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2015] [Accepted: 01/04/2016] [Indexed: 12/27/2022]
Abstract
BACKGROUND The present study evaluated the clinical value of dual-energy computed tomography (DECT) for detecting urate crystals in juveniles with symptomatic hyperuricemia. METHODS We recruited 24 juveniles (15 male and 9 female) who presented with symptomatic hyperuricemia. The mean body mass index (BMI) was 26.4 kg/m2 (standard deviation, SD 11.3 kg/m2). Fifteen juveniles (71.4%) were overweight. DECT scans of the feet were performed. For post-processing, a color-coding gout software protocol was used. RESULTS Urate crystals deposition was observed in 21/24 (87.5%) juveniles with symptomatic hyperuricemia. Urate crystals were detected in or around the anatomic site included the first metatarsophalangeal (MTP) joints (5/24, 20.8%); the calcaneus (5/24, 20.8%); any other toe joints (3/24, 12.5%); the astragalus (3/24, 12.5%); the ankle joints (3/24, 12.5%); the metatarsals (2/24, 8.3%); the cuboid (1/24, 4.2%); and other parts of the feet (2/24, 8.3%). Importantly, urate crystals deposition weas located in the soft tissue (tendon/tendon insertion sites/entheses) around the above-mentioned sites in a majority of these patients. CONCLUSIONS Urate crystals deposition can be detected by dual-energy CT in the feet of symptomatic hyperuricemia juveniles. DECT can be a valuable diagnostic tool for helping diagnose in juvenile gout.
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