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Cheng A, Luo H, Fan B, Xiang Q, Nie Z, Feng S, Qiao Y, Wu Y, Zhu Q, Liu R, Song X, Li X, Zhang J. Fluoride induces pyroptosis via IL-17A-mediated caspase-1/11-dependent pathways and Bifidobacterium intervention in testis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 926:172036. [PMID: 38554964 DOI: 10.1016/j.scitotenv.2024.172036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
Fluoride, a ubiquitous environmental pollutant, poses a significant public health threat. Our previous study revealed a correlation between fluoride-induced testicular pyroptosis and male reproductive dysfunction. However, the underlying mechanism remains unclear. Wild-type and interleukin 17A knockout mice were exposed to sodium fluoride (100 mg/L) in deionized drinking water for 18 weeks. Bifidobacterium intervention (1 × 109 CFU/mL, 0.2 mL/day, administered via gavage) commenced in the 10th week. Sperm quality, testicular morphology, key pyroptosis markers, spermatogenesis key genes, IL-17A signaling pathway, and pyroptosis pathway related genes were determined. The results showed that fluoride reduced sperm quality, damaged testicular morphology, affected spermatogenesis, elevated IL-17A levels, and induced testicular pyroptosis. Bifidobacterium intervention alleviated adverse reproductive outcomes. Fluoride-activated testicular pyroptosis through both typical and atypical pathways, with IL-17A involvement. Bifidobacterium supplementation attenuated pyroptosis by downregulating IL-17A, inhibiting NLRP3 and PYRIN-mediated caspase-1 and caspase-11 dependent pathways in testis, thereby alleviating fluoride-induced male reproductive damage. In summary, this study uncovers the mechanism underlying fluorine-induced testicular pyroptosis and illustrates the novel protecting feature of Bifidobacterium against fluoride-induced harm to male reproduction, along with its potential regulatory mechanism. These results provide fresh perspectives on treating male reproductive dysfunction resulting from fluoride or other environmental toxins.
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Affiliation(s)
- Ao Cheng
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Huifeng Luo
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Bingchao Fan
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Qing Xiang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Zhaochen Nie
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Shuang Feng
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Yurou Qiao
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Yue Wu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Qianlong Zhu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Rongxiu Liu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Xiaochao Song
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Xiang Li
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China
| | - Jianhai Zhang
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi 030801, China.
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Yang Y, Hong Q, Zhang X, Liu Z. Rheumatoid arthritis and the intestinal microbiome: probiotics as a potential therapy. Front Immunol 2024; 15:1331486. [PMID: 38510244 PMCID: PMC10950920 DOI: 10.3389/fimmu.2024.1331486] [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: 11/01/2023] [Accepted: 02/19/2024] [Indexed: 03/22/2024] Open
Abstract
Rheumatoid arthritis (RA) is a systemic autoimmune disorder characterized by swollen joints, discomfort, stiffness, osteoporosis, and reduced functionality. Genetics, smoking, dust inhalation, high BMI, and hormonal and gut microbiota dysbiosis are all likely causes of the onset or development of RA, but the underlying mechanism remains unknown. Compared to healthy controls, patients with RA have a significantly different composition of gut microbiota. It is well known that the human gut microbiota plays a key role in the initiation, maintenance, and operation of the host immune system. Gut microbiota dysbiosis has local or systematic adverse effects on the host immune system, resulting in host susceptibility to various diseases, including RA. Studies on the intestinal microbiota modulation and immunomodulatory properties of probiotics have been reported, in order to identify their potential possibility in prevention and disease activity control of RA. This review summarized current studies on the role and potential mechanisms of gut microbiota in the development and progression of RA, as well as the preventative and therapeutic effects and potential mechanisms of probiotics on RA. Additionally, we proposed the challenges and difficulties in the application of probiotics in RA, providing the direction for the research and application of probiotics in the prevention of RA.
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Affiliation(s)
- Yang Yang
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Qing Hong
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
| | - Xuehong Zhang
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Zhenmin Liu
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai, China
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3
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Lin L, Zhang K, Xiong Q, Zhang J, Cai B, Huang Z, Yang B, Wei B, Chen J, Niu Q. Gut microbiota in pre-clinical rheumatoid arthritis: From pathogenesis to preventing progression. J Autoimmun 2023; 141:103001. [PMID: 36931952 DOI: 10.1016/j.jaut.2023.103001] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 12/30/2022] [Accepted: 01/31/2023] [Indexed: 03/17/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by progressive polyarthritis that leads to cartilage and bone damage. Pre-clinical RA is a prolonged state before clinical arthritis and RA develop, in which autoantibodies (antibodies against citrullinated proteins, rheumatoid factors) can be present due to the breakdown of immunologic self-tolerance. As early treatment initiation before the onset of polyarthritis may achieve sustained remission, optimize clinical outcomes, and even prevent RA progression, the pre-clinical RA stage is showing the prospect to be the window of opportunity for RA treatment. Growing evidence has shown the role of the gut microbiota in inducing systemic inflammation and polyarthritis via multiple mechanisms, which may involve molecular mimicry, impaired intestinal barrier function, gut microbiota-derived metabolites mediated immune regulation, modulation of the gut microbiota's effect on immune cells, intestinal epithelial cells autophagy, and the interaction between the microbiome and human leukocyte antigen alleles as well as microRNAs. Since gut microbiota alterations in pre-clinical RA have been reported, potential therapies for modifying the gut microbiota in pre-clinical RA, including natural products, antibiotic therapy, fecal microbiota transplantation, probiotics, microRNAs therapy, vitamin D supplementation, autophagy inducer-based treatment, prebiotics, and diet, holds great promise for the successful treatment and even prevention of RA via altering ongoing inflammation. In this review, we summarized current studies that include pathogenesis of gut microbiota in RA progression and promising therapeutic strategies to provide novel ideas for the management of pre-clinical RA and possibly preventing arthritis progression.
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Affiliation(s)
- Liyan Lin
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Keyi Zhang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Qiao Xiong
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Infection Control, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Junlong Zhang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Bei Cai
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Zhuochun Huang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Bin Yang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Bin Wei
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jie Chen
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China.
| | - Qian Niu
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China.
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Piva F, Gervois P, Karrout Y, Sané F, Romond MB. Gut-Joint Axis: Impact of Bifidobacterial Cell Wall Lipoproteins on Arthritis Development. Nutrients 2023; 15:4861. [PMID: 38068720 PMCID: PMC10708502 DOI: 10.3390/nu15234861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 11/01/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023] Open
Abstract
Gut microbiota affect progression of rheumatoid arthritis (RA). The present study aims at investigating the protective potential of Bifidobacterium longum cell wall lipoproteins (Lpps) shown to modulate the intestinal microbiome and prevent osteoarthritis. Arthritis was induced by collagen (CIA) or anti-collagen antibodies (CAIA) injection. Intake of 0.5 mg of Lpps/L, but not 0.25 and 1 mg of Lpps/L, significantly alleviated RA symptoms in CIA DBA/1OOaHsd mice. The arthritis index (AI) was also reduced in CAIA mice. In the CIA-protected group, colon Ligilactobacillus murinus, caecal Lactobacillus johnsonii and spleen weight correlated with AI, whereas the reverse was observed with splenic CD11c+ dendritic cells (cDCs). The unprotected CIA Lpps group harbored higher cecal and colon E. coli and lower caecal L. murinus. Lpps administration to CAIA mice after arthritis induction led to lower colon E. plexicaudatum counts. Splenocytes from CIA-protected mice triggered by LPS secreted higher Il-10 than control ones. However, a higher IL-10 response was not elicited in gnotobiotic RA mice splenocytes with lower cDCs' recruitment. Labeled bacteria with the Lpps signal were detected in CIA mice bone marrow (BM) cDCs 5 and 16 h post-gavage but not in Peyer's patches and the spleen. In vitro uptake of Lpps by primary BM and thymus cells was observed within 24 h. An FACS analysis detected the Lpps signal in the plasmacytoid cell compartment but not in cDCs. In conclusion, Lpps dosing is critical for preventing arthritis progression and appropriately modulating the microbiome. Our results also highlight the possible triggering of the immune system by Lpps.
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Affiliation(s)
- Frank Piva
- Virology Laboratory-ULR3610, University of Lille and CHU Lille, 59000 Lille, France; (F.P.); (P.G.); (F.S.)
| | - Philippe Gervois
- Virology Laboratory-ULR3610, University of Lille and CHU Lille, 59000 Lille, France; (F.P.); (P.G.); (F.S.)
| | - Youness Karrout
- Inserm U1008, University of Lille and CHU Lille, 59000 Lille, France;
| | - Famara Sané
- Virology Laboratory-ULR3610, University of Lille and CHU Lille, 59000 Lille, France; (F.P.); (P.G.); (F.S.)
| | - Marie-Bénédicte Romond
- Virology Laboratory-ULR3610, University of Lille and CHU Lille, 59000 Lille, France; (F.P.); (P.G.); (F.S.)
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Williams KL, Enslow R, Suresh S, Beaton C, Hodge M, Brooks AE. Using the Microbiome as a Regenerative Medicine Strategy for Autoimmune Diseases. Biomedicines 2023; 11:1582. [PMID: 37371676 DOI: 10.3390/biomedicines11061582] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 05/19/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
Autoimmune (AI) diseases, which present in a multitude of systemic manifestations, have been connected to many underlying factors. These factors include the environment, genetics, individual microbiomes, and diet. An individual's gut microbiota is an integral aspect of human functioning, as it is intimately integrated into the metabolic, mechanical, immunological, and neurologic pathways of the body. The microbiota dynamically changes throughout our lifetimes and is individually unique. While the gut microbiome is ever-adaptive, gut dysbiosis can exert a significant influence on physical and mental health. Gut dysbiosis is a common factor in various AI, and diets with elevated fat and sugar content have been linked to gut microbiome alterations, contributing to increased systemic inflammation. Additionally, multiple AI's have increased levels of certain inflammatory markers such as TNF-a, IL-6, and IL-17 that have been shown to contribute to arthropathy and are also linked to increased levels of gut dysbiosis. While chronic inflammation has been shown to affect many physiologic systems, this review explores the connection between gut microbiota, bone metabolism, and the skeletal and joint destruction associated with various AI, including psoriatic arthritis, systemic lupus erythematosus, irritable bowel disease, and rheumatoid arthritis. This review aims to define the mechanisms of microbiome crosstalk between the cells of bone and cartilage, as well as to investigate the potential bidirectional connections between AI, bony and cartilaginous tissue, and the gut microbiome. By doing this, the review also introduces the concept of altering an individual's specific gut microbiota as a form of regenerative medicine and potential tailored therapy for joint destruction seen in AI. We hope to show multiple, specific ways to target the microbiome through diet changes, rebalancing microbial diversity, or decreasing specific microbes associated with increased gut permeability, leading to reduced systemic inflammation contributing to joint pathology. Additionally, we plan to show that diet alterations can promote beneficial changes in the gut microbiota, supporting the body's own endogenous processes to decrease inflammation and increase healing. This concept of microbial alteration falls under the definition of regenerative medicine and should be included accordingly. By implementing microbial alterations in regenerative medicine, this current study could lend increasing support to the current research on the associations of the gut microbiota, bone metabolism, and AI-related musculoskeletal pathology.
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Affiliation(s)
- Kaitlin L Williams
- College of Osteopathic Medicine, Rocky Vista University, Parker, CO 80112, USA
| | - Ryan Enslow
- College of Osteopathic Medicine, Rocky Vista University, Ivins, UT 84738, USA
| | - Shreyas Suresh
- College of Osteopathic Medicine, Rocky Vista University, Ivins, UT 84738, USA
| | - Camille Beaton
- College of Osteopathic Medicine, Rocky Vista University, Parker, CO 80112, USA
| | - Mitchell Hodge
- College of Osteopathic Medicine, Rocky Vista University, Parker, CO 80112, USA
| | - Amanda E Brooks
- Department of Research and Scholarly Activity, Rocky Vista University, Ivins, UT 84738, USA
- Department of Research and Scholarly Activity, Rocky Vista University, Parker, CO 80112, USA
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Kondo N, Kanai T, Okada M. Rheumatoid Arthritis and Reactive Oxygen Species: A Review. Curr Issues Mol Biol 2023; 45:3000-3015. [PMID: 37185721 PMCID: PMC10137217 DOI: 10.3390/cimb45040197] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/07/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic, systemic inflammatory disease that causes progressive joint damage and can lead to lifelong disability. Numerous studies support the hypothesis that reactive oxygen species (ROS) are associated with RA pathogenesis. Recent advances have clarified the anti-inflammatory effect of antioxidants and their roles in RA alleviation. In addition, several important signaling pathway components, such as nuclear factor kappa B, activator-protein-1, nuclear factor (erythroid-derived 2)-like 2/kelch-like associated protein, signal transducer and activator of transcription 3, and mitogen-activated protein kinases, including c-Jun N-terminal kinase, have been identified to be associated with RA. In this paper, we outline the ROS generation process and relevant oxidative markers, thereby providing evidence of the association between oxidative stress and RA pathogenesis. Furthermore, we describe various therapeutic targets in several prominent signaling pathways for improving RA disease activity and its hyper oxidative state. Finally, we reviewed natural foods, phytochemicals, chemical compounds with antioxidant properties and the association of microbiota with RA pathogenesis.
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Affiliation(s)
- Naoki Kondo
- Division of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan
| | - Tomotake Kanai
- Division of Orthopedic Surgery, Department of Regenerative and Transplant Medicine, Graduate School of Medical and Dental Sciences, Niigata University, Niigata 951-8510, Japan
| | - Masayasu Okada
- Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata 951-8510, Japan
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Plocica J, Guo F, Das JK, Kobayashi KS, Ficht TA, Alaniz RC, Song J, de Figueiredo P. Engineering live attenuated vaccines: Old dogs learning new tricks. J Transl Autoimmun 2023; 6:100198. [PMID: 37090898 PMCID: PMC10113845 DOI: 10.1016/j.jtauto.2023.100198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/24/2023] [Accepted: 03/26/2023] [Indexed: 03/29/2023] Open
Abstract
Autoimmune diseases such as rheumatoid arthritis and type 1 diabetes are increasingly common global problems. Concerns about increases in the prevalence of such diseases and the limited efficacy of conventional treatment regimens necessitates new therapies to address these challenges. Autoimmune disease severity and dysbiosis are interconnected. Although probiotics have been established as a therapy to rebalance the microbiome and suppress autoimmune symptoms, these microbes tend to lack a number of advantageous qualities found in non-commensal bacteria. Through attenuation and genetic manipulation, these non-commensal bacteria have been engineered into recombinant forms that offer malleable platforms capable of addressing the immune imbalances found in RA and T1D. Such bacteria have been engineered to express valuable gene products known to suppress autoimmunity such as anti-inflammatory cytokines, autoantigens, and enzymes synthesizing microbial metabolites. This review will highlight current and emerging trends in the field and discuss how they may be used to prevent and control autoimmune diseases.
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Affiliation(s)
- Julia Plocica
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
| | - Fengguang Guo
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
| | - Jugal Kishore Das
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
| | - Koichi S. Kobayashi
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
- Department of Immunology, Graduate School of Medicine, Hokkaido University Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan
- Institute of Vaccine Research and Development, Hokkaido University, Kita 15, Nishi 7, Kita-ku, Sapporo, 060-8638, Japan
| | - Thomas A. Ficht
- Department of Veterinary Pathobiology, Texas A&M University, College Station, TX, 77845, USA
| | - Robert C. Alaniz
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
| | - Jianxun Song
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
| | - Paul de Figueiredo
- Department of Microbial Pathogenesis and Immunology, Texas A&M University Health Science Center, Bryan, TX, 77807, USA
- Department of Veterinary Pathobiology, Texas A&M University, College Station, TX, 77845, USA
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Fructose Stimulated Colonic Arginine and Proline Metabolism Dysbiosis, Altered Microbiota and Aggravated Intestinal Barrier Dysfunction in DSS-Induced Colitis Rats. Nutrients 2023; 15:nu15030782. [PMID: 36771488 PMCID: PMC9921751 DOI: 10.3390/nu15030782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 01/27/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
The dysbiosis of intestinal microbiota and their metabolites is linked to the occurrence and development of metabolic syndrome. Although fructose has been proven to be associated with worsened mucus in the colon, its mechanism remains unclear. In this study, we evaluated the relatively low intake of sucrose and fructose in the experimental colitis of Sprague Dawley rats by investigating the microbiome and metabolome. Results showed that sucrose and fructose significantly reduced body weight, colon length and increased inflammation infiltration in colon. Sucrose and fructose worsen colon functions by inhibiting the expression of tight junction (TJ) protein ZO-1 and increasing the level of lipopolysaccharide neoandrographolide (LPS) in plasma, while fructose was more significant. Furthermore, sucrose and fructose significantly changed the composition of gut microbiota characterized by decreasing Adlercreutzia, Leuconostoc, Lactococcus and Oscillospira and increasing Allobaculum and Holdemania along with reducing histidine, phenylalanine, arginine, glycine, aspartic acid, serine, methionine valine, alanine, lysine, isoleucine, leucine, threonine, tryptophan, tyrosine, proline, citrulline, 4-hydroxyproline and gamma amino butyric acid (GABA). Metabolome results showed that fructose may aggravate experimental colitis symptoms by inducing amino metabolism dysbiosis in the colon. These findings suggested that fructose worsened colitis by manipulating the crosstalk between gut microbiota and their metabolites.
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Dong Y, Yao J, Deng Q, Li X, He Y, Ren X, Zheng Y, Song R, Zhong X, Ma J, Shan D, Lv F, Wang X, Yuan R, She G. Relationship between gut microbiota and rheumatoid arthritis: A bibliometric analysis. Front Immunol 2023; 14:1131933. [PMID: 36936921 PMCID: PMC10015446 DOI: 10.3389/fimmu.2023.1131933] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 02/14/2023] [Indexed: 03/05/2023] Open
Abstract
Introduction Rheumatoid arthritis (RA) is a multifactorial autoimmune disease. Recently, growing evidence demonstrates that gut microbiota (GM) plays an important role in RA. But so far, no bibliometric studies pertaining to GM in RA have ever been published. This study attempts to depict the knowledge framework in this field from a holistic and systematic perspective based on the bibliometric analysis. Methods Literature related to the involvement of GM in RA was searched and picked from the Web of Science Core Collection (WOSCC) database. The annual output, cooperation, hotspots, research status and development trend of this field were analyzed by bibliometric software (VOSviewer and Bibliometricx). Results 255 original research articles and 204 reviews were included in the analysis. The articles in this field that can be retrieved in WOSCC were first published in 2004 and increased year by year since then. 2013 is a growth explosion point. China and the United States are the countries with the most contributions, and Harvard University is the affiliation with the most output. Frontiers in Immunology (total citations = 603) is the journal with the most publications and the fastest growth rate. eLife is the journal with the most citations (total citations = 1248). Scher, Jose U. and Taneja, Veena are the most productive and cited authors. The research in this field is mainly distributed in the evidence, mechanism and practical application of GM participating in RA through the analysis of keywords and documents. There is sufficient evidence to prove the close relationship between GM and RA, which lays the foundation for this field. This extended two colorful and tender branches of mechanism research and application exploration, which have made some achievements but still have broad exploration space. Recently, the keywords "metabolites", "metabolomics", "acid", "b cells", "balance", "treg cells", "probiotic supplementation" appeared most frequently, which tells us that research on the mechanism of GM participating in RA and exploration of its application are the hotspots in recent years. Discussion Taken together, these results provide a data-based and objective introduction to the GM participating in RA, giving readers a valuable reference to help guide future research.
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Affiliation(s)
- Ying Dong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Jianling Yao
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Qingyue Deng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xianxian Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yingyu He
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xueyang Ren
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Yuan Zheng
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Ruolan Song
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xiangjian Zhong
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Jiamu Ma
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Dongjie Shan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Fang Lv
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
| | - Xiuhuan Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- Peking University HuiLongGuan Clinical Medical School, Beijing Huilongguan Hospital, Beijing, China
| | - Ruijuan Yuan
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- *Correspondence: Ruijuan Yuan, ; Gaimei She,
| | - Gaimei She
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing, China
- *Correspondence: Ruijuan Yuan, ; Gaimei She,
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Ruiz-Limón P, Mena-Vázquez N, Moreno-Indias I, Manrique-Arija S, Lisbona-Montañez JM, Cano-García L, Tinahones FJ, Fernández-Nebro A. Collinsella is associated with cumulative inflammatory burden in an established rheumatoid arthritis cohort. Biomed Pharmacother 2022; 153:113518. [DOI: 10.1016/j.biopha.2022.113518] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 12/11/2022] Open
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Biomolecular Mechanisms of Autoimmune Diseases and Their Relationship with the Resident Microbiota: Friend or Foe? PATHOPHYSIOLOGY 2022; 29:507-536. [PMID: 36136068 PMCID: PMC9505211 DOI: 10.3390/pathophysiology29030041] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/23/2022] [Accepted: 08/26/2022] [Indexed: 12/02/2022] Open
Abstract
The use of innovative approaches to elucidate the pathophysiological mechanisms of autoimmune diseases, as well as to further study of the factors which can have either a positive or negative effect on the course of the disease, is essential. In this line, the development of new molecular techniques and the creation of the Human Genome Program have allowed access to many more solutions to the difficulties that exist in the identification and characterization of the microbiome, as well as changes due to various factors. Such innovative technologies can rekindle older hypotheses, such as molecular mimicry, allowing us to move from hypothesis to theory and from correlation to causality, particularly regarding autoimmune diseases and dysbiosis of the microbiota. For example, Prevotella copri appears to have a strong association with rheumatoid arthritis; it is expected that this will be confirmed by several scientists, which, in turn, will make it possible to identify other mechanisms that may contribute to the pathophysiology of the disease. This article seeks to identify new clues regarding similar correlations between autoimmune activity and the human microbiota, particularly in relation to qualitative and quantitative microbial variations therein.
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Lanspa M, Kothe B, Pereira MR, Kesselman MM, Petrosky SN. A Systematic Review of Nutritional Interventions on Key Cytokine Pathways in Rheumatoid Arthritis and Its Implications for Comorbid Depression: Is a More Comprehensive Approach Required? Cureus 2022; 14:e28031. [PMID: 35990558 PMCID: PMC9380898 DOI: 10.7759/cureus.28031] [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: 07/20/2022] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Abstract
Rheumatoid arthritis (RA) is associated with both local and systemic inflammatory processes via the aberrant regulation of inflammatory pathways and imbalances in several mediators of inflammation. Cytokines, tumor necrosis factor-alpha (TNF-α), interleukin (IL)-1B, IL-6, IL-17, IL-18, rheumatoid factor, anti-cyclic citrullinated protein, C-reactive protein (CRP), and erythrocyte sedimentation rate (ESR) have been used in diagnosing and tracking the progression of RA. The primary objective of this review is to identify and summarize which specific dietary patterns and nutritional interventions go beyond symptom management to improve the response to known inflammatory cytokines and possibly decrease markers of inflammation in the RA disease process. Analysis of the 41 identified publications demonstrated that certain dietary patterns, the consumption of specific macronutrients, and supplementation with herbals or other compounds have shown some effect on improving cytokine profiles in patients with RA. This review illustrates the importance of proper patient education on the anti-inflammatory and potential protective impacts substantial dietary change may have on the disease progression and symptoms of RA. Identifying nutritional interventions and dietary patterns that improve the inflammatory cytokine profile, and therefore disease progression and inflammatory comorbidities of RA will help further focus research on treatments that may provide a better overall improvement in quality of life for RA patients by focusing on the root cause inflammatory processes that affect not only joint destruction but also depression-rated disability. This review further notes that while depression is commonly found in patients who suffer from chronic illnesses, it is especially prevalent in the RA population. The pathology of depression is associated with systemic inflammation, which is a known outcome of RA and may explain this strong association. Cytokines IL-6, IL-1, and TNF-α, known mediators involved in the progression of RA, are strongly associated with stress-related disorders including depression and anxiety. The presence of these cytokines is also correlated with the severity and duration of depression. This may signal a potential use of cytokines in diagnosing and following the progression of depression not only in patients with RA but also others. Given the statistics presented on depression and suicide in patients with RA, and the shared inflammatory pathway between the two diseases, depression and suicide screening scales should be included along with analysis of inflammatory markers and disease activity scores (DAS) in any future RA study.
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