1
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Wang J, He M, Yang M, Ai X. Gut microbiota as a key regulator of intestinal mucosal immunity. Life Sci 2024; 345:122612. [PMID: 38588949 DOI: 10.1016/j.lfs.2024.122612] [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: 02/04/2024] [Revised: 03/14/2024] [Accepted: 04/02/2024] [Indexed: 04/10/2024]
Abstract
Gut microbiota is a complex microbial community with the ability of maintaining intestinal health. Intestinal homeostasis largely depends on the mucosal immune system to defense external pathogens and promote tissue repair. In recent years, growing evidence revealed the importance of gut microbiota in shaping intestinal mucosal immunity. Therefore, according to the existing findings, this review first provided an overview of intestinal mucosal immune system before summarizing the regulatory roles of gut microbiota in intestinal innate and adaptive immunity. Specifically, this review delved into the gut microbial interactions with the cells such as intestinal epithelial cells (IECs), macrophages, dendritic cells (DCs), neutrophils, and innate lymphoid cells (ILCs) in innate immunity, and T and B lymphocytes in adaptive immunity. Furthermore, this review discussed the main effects of gut microbiota dysbiosis in intestinal diseases and offered future research prospects. The review highlighted the key regulatory roles of gut microbiota in intestinal mucosal immunity via various host-microbe interactions, providing valuable references for the development of microbial therapy in intestinal diseases.
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Affiliation(s)
- Jing Wang
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China; Department of Pharmacy, North Sichuan Medical College, Nanchong 637000, China
| | - Mei He
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China; Department of Pharmacy, North Sichuan Medical College, Nanchong 637000, China
| | - Ming Yang
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China; Department of Pharmacy, North Sichuan Medical College, Nanchong 637000, China.
| | - Xiaopeng Ai
- Department of Pharmacy, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China; Department of Pharmacy, North Sichuan Medical College, Nanchong 637000, China.
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2
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Zhang Y, Wei J, Feng X, Lin Q, Deng J, Yuan Y, Li M, Zhai B, Chen J. Folic acid supplementation prevents high body fat-induced bone loss through TGR5 signaling pathways. Food Funct 2024; 15:4193-4206. [PMID: 38506303 DOI: 10.1039/d4fo00404c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Osteoporosis caused by bone loss is one of the serious global public health problems. Folic acid is a B vitamin with multiple physiological functions such as lipid regulation and antioxidant capacity, and its potential to improve bone loss has attracted our attention. Through NHANES database analysis, we found that folic acid intake was significantly correlated with whole-body bone mineral density (BMD) in people aged 20-60 years, and the association may be mediated by the body fat rate. Male C57Bl/6 mice were fed either a normal diet or a high-fat diet, and folic acid was added to drinking water for supplementation. Our results indicated that mice with high body fat showed bone microstructure damage and bone loss, while folic acid supplementation improved bone quality. At the same time, we found that mice with high body fat exhibited abnormal blood lipids, dysregulation of intestinal flora, and metabolic disorders. Folic acid supplementation improved these phenomena. Through the network analysis of intestinal flora and metabolites, we found that LCA and TGR5 may play important roles. The results showed that folic acid promoted the expression of LCA and TGR5 in mice, increased the phosphorylation of AMPK, and decreased the phosphorylation of NF-κB and ERK, thereby reducing bone loss. In summary, folic acid intake is closely related to BMD, and folic acid supplementation can prevent high body fat-induced bone loss. Our study provides new ideas and an experimental basis for preventing bone loss and osteoporosis.
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Affiliation(s)
- Yaxi Zhang
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410008, China.
| | - Jieqiong Wei
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410008, China.
| | - Xiangling Feng
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410008, China.
| | - Qian Lin
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410008, China.
| | - Jing Deng
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410008, China.
| | - Yuehan Yuan
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410008, China.
| | - Min Li
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410008, China.
| | - Bingfang Zhai
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410008, China.
| | - Jihua Chen
- Department of Nutrition Science and Food Hygiene, Xiangya School of Public Health, Central South University, Changsha 410008, China.
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3
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Ye D, He J, He X. The role of bile acid receptor TGR5 in regulating inflammatory signalling. Scand J Immunol 2024; 99:e13361. [PMID: 38307496 DOI: 10.1111/sji.13361] [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: 08/09/2023] [Revised: 10/12/2023] [Accepted: 01/18/2024] [Indexed: 02/04/2024]
Abstract
Takeda G protein-coupled receptor 5 (TGR5) is a bile acid receptor, and its role in regulating metabolism after binding with bile acids has been established. Since the immune response depends on metabolism to provide biomolecules and energy to cope with challenging conditions, emerging evidence reveals the regulatory effects of TGR5 on the immune response. An in-depth understanding of the effect of TGR5 on immune regulation can help us disentangle the interaction of metabolism and immune response, accelerating the development of TGR5 as a therapeutic target. Herein, we reviewed more than 200 articles published in the last 20 years in PubMed, to discuss the roles of TGR5 in regulating inflammatory response, the molecular mechanism, as well as existing problems. Particularly, its anti-inflammation effect is emphasized.
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Affiliation(s)
- Daijiao Ye
- Medical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Jiayao He
- Medical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
| | - Xiaofei He
- Medical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
- The Key Laboratory of Pediatric Hematology and Oncology Disease of Wenzhou, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, China
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4
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Shvets Y, Khranovska N, Senchylo N, Ostapchenko D, Tymoshenko I, Onysenko S, Kobyliak N, Falalyeyeva T. Microbiota substances modulate dendritic cells activity: A critical view. Heliyon 2024; 10:e27125. [PMID: 38444507 PMCID: PMC10912702 DOI: 10.1016/j.heliyon.2024.e27125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/23/2024] [Accepted: 02/23/2024] [Indexed: 03/07/2024] Open
Abstract
Contemporary research in the field of microbiota shows that commensal bacteria influence physiological activity of different organs and systems of a human organism, such as brain, lungs, immune and metabolic systems. This influence is realized by various processes. One of them is trough modulation of immune mechanisms. Interactions between microbiota and the human immune system are known to be complex and ambiguous. Dendritic cells (DCs) are unique cells, which initiate the development and polarization of adaptive immune response. These cells also interconnect native and specific immune reactivity. A large set of biochemical signals from microbiota in the form of different microbiota associated molecular patterns (MAMPs) and bacterial metabolites that act locally and distantly in the human organism. As a result, commensal bacteria influence the maturity and activity of dendritic cells and affect the overall immune reactivity of the human organism. It then determines the response to pathogenic microorganisms, inflammation, associated with different pathological conditions and even affects the effectiveness of vaccination.
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Affiliation(s)
- Yuliia Shvets
- Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska Str., Kyiv, Ukraine
| | - Natalia Khranovska
- National Cancer Institute of Ukraine, 33/43 Yuliia Zdanovska Str., Kyiv, Ukraine
| | - Natalia Senchylo
- Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska Str., Kyiv, Ukraine
| | - Danylo Ostapchenko
- Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska Str., Kyiv, Ukraine
| | - Iryna Tymoshenko
- Bogomolets National Medical University, 13 Shevchenka Blvd., Kyiv, Ukraine
| | - Svitlana Onysenko
- Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska Str., Kyiv, Ukraine
| | - Nazarii Kobyliak
- Bogomolets National Medical University, 13 Shevchenka Blvd., Kyiv, Ukraine
- Medical Laboratory CSD, 22b Zhmerynska Str., Kyiv, Ukraine
| | - Tetyana Falalyeyeva
- Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska Str., Kyiv, Ukraine
- Medical Laboratory CSD, 22b Zhmerynska Str., Kyiv, Ukraine
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5
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Xu N, He Y, Zhang C, Zhang Y, Cheng S, Deng L, Zhong Y, Liao B, Wei Y, Feng J. TGR5 signalling in heart and brain injuries: focus on metabolic and ischaemic mechanisms. Neurobiol Dis 2024; 192:106428. [PMID: 38307367 DOI: 10.1016/j.nbd.2024.106428] [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: 10/06/2023] [Revised: 01/28/2024] [Accepted: 01/31/2024] [Indexed: 02/04/2024] Open
Abstract
The heart and brain are the core organs of the circulation and central nervous system, respectively, and play an important role in maintaining normal physiological functions. Early neuronal and cardiac damage affects organ function. The relationship between the heart and brain is being continuously investigated. Evidence-based medicine has revealed the concept of the "heart- brain axis," which may provide new therapeutic strategies for certain diseases. Takeda protein-coupled receptor 5 (TGR5) is a metabolic regulator involved in energy homeostasis, bile acid homeostasis, and glucose and lipid metabolism. Inflammation is critical for the development and regeneration of the heart and brain during metabolic diseases. Herein, we discuss the role of TGR5 as a metabolic regulator of heart and brain development and injury to facilitate new therapeutic strategies for metabolic and ischemic diseases of the heart and brain.
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Affiliation(s)
- Nan Xu
- Department of Cardiology, The First People's Hospital of Neijiang, Neijiang, China
| | - Yufeng He
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Key Laboratory of Medical Electrophysiology, Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Chunyu Zhang
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Key Laboratory of Medical Electrophysiology, Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Yongqiang Zhang
- Department of Cardiology, Hejiang County People's Hospital, Luzhou, China
| | - Shengjie Cheng
- Department of Cardiology, The First People's Hospital of Neijiang, Neijiang, China
| | - Li Deng
- Department of Rheumatology, The Afliated Hospital of Southwest Medical University, Luzhou, China
| | - Yi Zhong
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Key Laboratory of Medical Electrophysiology, Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China
| | - Bin Liao
- Department of Cardiovascular Surgery, The Affiliated Hospital of Southwest Medical University, Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Luzhou, China
| | - Yan Wei
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Key Laboratory of Medical Electrophysiology, Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China.
| | - Jian Feng
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Key Laboratory of Medical Electrophysiology, Ministry of Education and Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou, China.
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6
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Jank L, Bhargava P. Relationship Between Multiple Sclerosis, Gut Dysbiosis, and Inflammation: Considerations for Treatment. Neurol Clin 2024; 42:55-76. [PMID: 37980123 DOI: 10.1016/j.ncl.2023.07.005] [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] [Indexed: 11/20/2023]
Abstract
Multiple sclerosis is associated with gut dysbiosis, marked by changes in the relative abundances of specific microbes, circulating gut-derived metabolites, and altered gut permeability. This gut dysbiosis promotes disease pathology by increasing circulating proinflammatory bacterial factors, reducing tolerogenic factors, inducing molecular mimicry, and changing microbial nutrient metabolism. Beneficial antiinflammatory effects of the microbiome can be harnessed in therapeutic interventions. In the future, it is essential to assess the efficacy of these therapies in randomized controlled clinical trials to help make dietary and gut dysbiosis management an integral part of multiple sclerosis care.
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Affiliation(s)
- Larissa Jank
- Division of Neuroimmunology and Neurological Infections, Department of Neurology, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Meyer 6-144, Baltimore, MD 21287, USA
| | - Pavan Bhargava
- Division of Neuroimmunology and Neurological Infections, Department of Neurology, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Meyer 6-144, Baltimore, MD 21287, USA.
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7
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Losol P, Wolska M, Wypych TP, Yao L, O'Mahony L, Sokolowska M. A cross talk between microbial metabolites and host immunity: Its relevance for allergic diseases. Clin Transl Allergy 2024; 14:e12339. [PMID: 38342758 PMCID: PMC10859320 DOI: 10.1002/clt2.12339] [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: 09/30/2023] [Revised: 01/07/2024] [Accepted: 01/22/2024] [Indexed: 02/13/2024] Open
Abstract
BACKGROUND Allergic diseases, including respiratory and food allergies, as well as allergic skin conditions have surged in prevalence in recent decades. In allergic diseases, the gut microbiome is dysbiotic, with reduced diversity of beneficial bacteria and increased abundance of potential pathogens. Research findings suggest that the microbiome, which is highly influenced by environmental and dietary factors, plays a central role in the development, progression, and severity of allergic diseases. The microbiome generates metabolites, which can regulate many of the host's cellular metabolic processes and host immune responses. AIMS AND METHODS Our goal is to provide a narrative and comprehensive literature review of the mechanisms through which microbial metabolites regulate host immune function and immune metabolism both in homeostasis and in the context of allergic diseases. RESULTS AND DISCUSSION We describe key microbial metabolites such as short-chain fatty acids, amino acids, bile acids and polyamines, elucidating their mechanisms of action, cellular targets and their roles in regulating metabolism within innate and adaptive immune cells. Furthermore, we characterize the role of bacterial metabolites in the pathogenesis of allergic diseases including allergic asthma, atopic dermatitis and food allergy. CONCLUSION Future research efforts should focus on investigating the physiological functions of microbiota-derived metabolites to help develop new diagnostic and therapeutic interventions for allergic diseases.
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Affiliation(s)
- Purevsuren Losol
- Department of Internal MedicineSeoul National University Bundang HospitalSeongnamKorea
- Department of Molecular Biology and GeneticsSchool of BiomedicineMongolian National University of Medical SciencesUlaanbaatarMongolia
| | - Magdalena Wolska
- Laboratory of Host‐Microbiota InteractionsNencki Institute of Experimental BiologyPolish Academy of SciencesWarsawPoland
| | - Tomasz P. Wypych
- Laboratory of Host‐Microbiota InteractionsNencki Institute of Experimental BiologyPolish Academy of SciencesWarsawPoland
| | - Lu Yao
- APC Microbiome IrelandUniversity College CorkCorkIreland
- Department of MedicineUniversity College CorkCorkIreland
- School of MicrobiologyUniversity College CorkCorkIreland
| | - Liam O'Mahony
- APC Microbiome IrelandUniversity College CorkCorkIreland
- Department of MedicineUniversity College CorkCorkIreland
- School of MicrobiologyUniversity College CorkCorkIreland
| | - Milena Sokolowska
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZurichDavosSwitzerland
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8
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Lun W, Yan Q, Guo X, Zhou M, Bai Y, He J, Cao H, Che Q, Guo J, Su Z. Mechanism of action of the bile acid receptor TGR5 in obesity. Acta Pharm Sin B 2024; 14:468-491. [PMID: 38322325 PMCID: PMC10840437 DOI: 10.1016/j.apsb.2023.11.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 09/17/2023] [Accepted: 10/24/2023] [Indexed: 02/08/2024] Open
Abstract
G protein-coupled receptors (GPCRs) are a large family of membrane protein receptors, and Takeda G protein-coupled receptor 5 (TGR5) is a member of this family. As a membrane receptor, TGR5 is widely distributed in different parts of the human body and plays a vital role in regulating metabolism, including the processes of energy consumption, weight loss and blood glucose homeostasis. Recent studies have shown that TGR5 plays an important role in glucose and lipid metabolism disorders such as fatty liver, obesity and diabetes. With the global obesity situation becoming more and more serious, a comprehensive explanation of the mechanism of TGR5 and filling the gaps in knowledge concerning clinical ligand drugs are urgently needed. In this review, we mainly explain the anti-obesity mechanism of TGR5 to promote the further study of this target, and show the electron microscope structure of TGR5 and review recent studies on TGR5 ligands to illustrate the specific binding between TGR5 receptor binding sites and ligands, which can effectively provide new ideas for ligand research and promote drug research.
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Affiliation(s)
- Weijun Lun
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Qihao Yan
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Xinghua Guo
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Minchuan Zhou
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yan Bai
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - Jincan He
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510310, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, China
| | - Qishi Che
- Guangzhou Rainhome Pharm & Tech Co., Ltd., Science City, Guangzhou 510663, China
| | - Jiao Guo
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Zhengquan Su
- Guangdong Engineering Research Center of Natural Products and New Drugs, Guangdong Provincial University Engineering Technology Research Center of Natural Products and Drugs, Guangdong Pharmaceutical University, Guangzhou 510006, China
- Guangdong Metabolic Disease Research Center of Integrated Chinese and Western Medicine, Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education of China, Guangdong TCM Key Laboratory for Metabolic Diseases, Guangdong Pharmaceutical University, Guangzhou 510006, China
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9
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Wang A, Guan B, Zhang H, Xu H. Danger-associated metabolites trigger metaflammation: A crowbar in cardiometabolic diseases. Pharmacol Res 2023; 198:106983. [PMID: 37931790 DOI: 10.1016/j.phrs.2023.106983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 10/12/2023] [Accepted: 11/03/2023] [Indexed: 11/08/2023]
Abstract
Cardiometabolic diseases (CMDs) are characterized by a series of metabolic disorders and chronic low-grade inflammation. CMDs contribute to a high burden of mortality and morbidity worldwide. Host-microbial metabolic regulation that triggers metaflammation is an emerging field of study that promotes a new perspective for perceiving cardiovascular risks. The term metaflammation denotes the entire cascade of immune responses activated by a new class of metabolites known as "danger-associated metabolites" (DAMs). It is being proposed by the present review for the first time. We summarize current studies covering bench to bedside aspects of DAMs to better understand CMDs in the context of DAMs. We have focused on the involvement of DAMs in the pathophysiological development of CMDs, including the disruption of immune homeostasis and chronic inflammation-triggered damage leading to CMD-related adverse events, as well as emerging therapeutic approaches for targeting DAM metabolism in CMDs.
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Affiliation(s)
- Anlu Wang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; National Clinical Research Center for Chinese Medicine Cardiology, Beijing 100091, China
| | - Baoyi Guan
- Department of Internal Medicine-Cardiovascular, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510000, China
| | - He Zhang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; National Clinical Research Center for Chinese Medicine Cardiology, Beijing 100091, China
| | - Hao Xu
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing 100091, China; National Clinical Research Center for Chinese Medicine Cardiology, Beijing 100091, China.
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10
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Kiriyama Y, Nochi H. The Role of Gut Microbiota-Derived Lithocholic Acid, Deoxycholic Acid and Their Derivatives on the Function and Differentiation of Immune Cells. Microorganisms 2023; 11:2730. [PMID: 38004742 PMCID: PMC10672800 DOI: 10.3390/microorganisms11112730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 10/24/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
A wide variety and large number of bacterial species live in the gut, forming the gut microbiota. Gut microbiota not only coexist harmoniously with their hosts, but they also induce significant effects on each other. The composition of the gut microbiota can be changed due to environmental factors such as diet and antibiotic intake. In contrast, alterations in the composition of the gut microbiota have been reported in a variety of diseases, including intestinal, allergic, and autoimmune diseases and cancer. The gut microbiota metabolize exogenous dietary components ingested from outside the body to produce short-chain fatty acids (SCFAs) and amino acid metabolites. Unlike SCFAs and amino acid metabolites, the source of bile acids (BAs) produced by the gut microbiota is endogenous BAs from the liver. The gut microbiota metabolize BAs to generate secondary bile acids, such as lithocholic acid (LCA), deoxycholic acid (DCA), and their derivatives, which have recently been shown to play important roles in immune cells. This review focuses on current knowledge of the role of LCA, DCA, and their derivatives on immune cells.
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Affiliation(s)
- Yoshimitsu Kiriyama
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Sanuki 769-2193, Japan;
- Institute of Neuroscience, Tokushima Bunri University, Sanuki 769-2193, Japan
| | - Hiromi Nochi
- Kagawa School of Pharmaceutical Sciences, Tokushima Bunri University, Sanuki 769-2193, Japan;
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11
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Guan Z, Xuanqi Z, Zhu J, Yuan W, Jia J, Zhang C, Sun T, Leng H, Jiang C, Xu Y, Song C. Estrogen deficiency induces bone loss through the gut microbiota. Pharmacol Res 2023; 196:106930. [PMID: 37722518 DOI: 10.1016/j.phrs.2023.106930] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
Postmenopausal osteoporosis is a common bone metabolic disease, and gut microbiota (GM) imbalance plays an important role in the development of metabolic bone disease. Here, we show that ovariectomized mice had high levels of lipopolysaccharide in serum and gut microbiota dysbiosis through increases in luminal Firmicutes:Bacteroidetes ratio. We depleted the GM through antibiotic treatment and observed improvements in bone mass, bone microstructure, and bone strength in ovariectomized mice. Conversely, transplantation of GM adapted to ovariectomy induced bone loss. However, GM depletion reversed ovariectomy-induced gene expression in the tibia and increased periosteal bone formation. Furthermore, bioinformatics analysis revealed that the G-protein-coupled bile acid receptor (TGR5) and systemic inflammatory factors play key roles in bone metabolism. Silencing TGR5 expression through small interfering RNA (siRNA) in the local tibia and knockout of TGR5 attenuated the effects of GM depletion in ovariectomized mice, confirming these findings. Thus, this study highlights the critical role of the GM in inducing bone loss in ovariectomized mice and suggests that targeting TGR5 within the GM may have therapeutic potential for postmenopausal osteoporosis.
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Affiliation(s)
- Zhiyuan Guan
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Zheng Xuanqi
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Junxiong Zhu
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Wanqiong Yuan
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Jialin Jia
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Chenggui Zhang
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Tiantong Sun
- Department of Orthopedics, Peking University Third Hospital, Beijing, China
| | - Huijie Leng
- Beijing Key Laboratory of Spinal Diseases, Beijing, China
| | - Changtao Jiang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, and the Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Yingsheng Xu
- Department of Neurology, Peking University Third Hospital, Beijing, China
| | - Chunli Song
- Department of Orthopedics, Peking University Third Hospital, Beijing, China; Beijing Key Laboratory of Spinal Diseases, Beijing, China.
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12
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Kovacevic B, Jones M, Wagle SR, Ionescu CM, Foster T, Đanić M, Mikov M, Mooranian A, Al-Salami H. Influence of poly-L-ornithine-bile acid nano hydrogels on cellular bioactivity and potential pharmacological applications. Ther Deliv 2023. [PMID: 37667908 DOI: 10.4155/tde-2023-0034] [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] [Indexed: 09/06/2023] Open
Abstract
Aim: Cellular bioactivity and pathophysiological changes associated with chronic disorders are considered pivotal detrimental factors when developing novel formulations for biomedical applications. Methods: This paper investigates the use of bile acids and synthetic polypeptide poly-L-ornithine (PLO) in formulations and their impacts on a variety of cell lines, with a particular focus on their cellular bioactivity. Results: The hepatic cell line was the most negatively affected by the presence of PLO, while the muscle and beta-pancreatic cell lines did not show as profound of a negative impact of PLO on cellular viability. PLO was the least disruptive regarding mitochondrial function for muscle and beta cells. Conclusion: The addition of bile acids generally decreased mitochondrial respiration and altered bioenergetic parameters in all cell lines.
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Affiliation(s)
- Bozica Kovacevic
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Melissa Jones
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Susbin Raj Wagle
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Corina Mihaela Ionescu
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Thomas Foster
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Maja Đanić
- Department of Pharmacology, Toxicology & Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, 21101, Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology & Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, 21101, Serbia
| | - Armin Mooranian
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
- School of Pharmacy, University of Otago, Dunedin, Otago, 9016, New Zealand
| | - Hani Al-Salami
- The Biotechnology & Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
- Medical School, University of Western Australia, Perth, 6000, Australia
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Kovacevic B, Raj Wagle S, Mihaela Ionescu C, Foster T, Đanić M, Mikov M, Mooranian A, Al-Salami H. The biocompatibility and the metabolic impact of thermoresponsive, bile acid-based nanogels on auditory and macrophage cell lines. Eur J Pharm Biopharm 2023; 190:248-257. [PMID: 37562725 DOI: 10.1016/j.ejpb.2023.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/02/2023] [Accepted: 08/08/2023] [Indexed: 08/12/2023]
Abstract
Deoxycholic acid (DCA), lithocholic acid (LCA), and ursodeoxycholic acid (UDCA) are bile acids that may serve as permeation enhancers when incorporated within the nanogel matrix for drug delivery in the inner ear. In this study, thermoresponsive nanogels were formulated with DCA, LCA and UDCA and their rheological properties and biocompatibility were assessed. The impact of nanogel on cellular viability was evaluated via cell viability assay, the impact of nanogels on cellular bioenergetic parameters was estimated by Seahorse mito-stress test and glycolysis-stress test, while the presence of intracellular free radicals was assessed by reactive oxygen species assay. Nanogels showed a high level of biocompatibility after 24-hour exposure to auditory and macrophage cell lines, with minimal cytotoxicity compared to untreated control. Incubation with nanogels did not alter cellular respiration and glycolysis of the auditory cell line but showed possible mitochondrial dysfunction in macrophages, suggesting tissue-dependent effects of bile acids. Bile acid-nanogels had minimal impact on intracellular reactive oxygen species, with LCA demonstrating the most pro-oxidative behaviour. This study suggests that thermoresponsive nanogels with bile acid, particularly DCA and UDCA, may be promising candidates for inner ear drug delivery.
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Affiliation(s)
- Bozica Kovacevic
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Susbin Raj Wagle
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Corina Mihaela Ionescu
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Thomas Foster
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia
| | - Maja Đanić
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad 21101, Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad 21101, Serbia
| | - Armin Mooranian
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; School of Pharmacy, University of Otago, Dunedin, Otago, New Zealand.
| | - Hani Al-Salami
- The Biotechnology and Drug Development Research Laboratory, Curtin Medical School & Curtin Health Innovation Research Institute, Curtin University, Bentley, Perth, WA 6102, Australia; Medical School, University of Western Australia, Perth, Australia.
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Cheung KCP, Ma J, Loiola RA, Chen X, Jia W. Bile acid-activated receptors in innate and adaptive immunity: targeted drugs and biological agents. Eur J Immunol 2023; 53:e2250299. [PMID: 37172599 DOI: 10.1002/eji.202250299] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 03/10/2023] [Accepted: 05/11/2023] [Indexed: 05/15/2023]
Abstract
Bile acid-activated receptors (BARs) such as a G-protein bile acid receptor 1 and the farnesol X receptor are activated by bile acids (BAs) and have been implicated in the regulation of microbiota-host immunity in the intestine. The mechanistic roles of these receptors in immune signaling suggest that they may also influence the development of metabolic disorders. In this perspective, we provide a summary of recent literature describing the main regulatory pathways and mechanisms of BARs and how they affect both innate and adaptive immune system, cell proliferation, and signaling in the context of inflammatory diseases. We also discuss new approaches for therapy and summarize clinical projects on BAs for the treatment of diseases. In parallel, some drugs that are classically used for other therapeutic purposes and BAR activity have recently been proposed as regulators of immune cells phenotype. Another strategy consists of using specific strains of gut bacteria to regulate BA production in the intestine.
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Affiliation(s)
- Kenneth C P Cheung
- Hong Kong Phenome Research Center, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Jiao Ma
- Hong Kong Phenome Research Center, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | | | - Xingxuan Chen
- Hong Kong Phenome Research Center, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Wei Jia
- Hong Kong Phenome Research Center, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
- Center for Translational Medicine and Shanghai Key Laboratory of Diabetes Mellitus, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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Cai J, Zhao J, Gao P, Xia Y. Patchouli alcohol inhibits GPBAR1-mediated cell proliferation, apoptosis, migration, and invasion in prostate cancer. Transl Androl Urol 2022; 11:1555-1567. [PMID: 36507482 PMCID: PMC9732702 DOI: 10.21037/tau-22-667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/18/2022] [Indexed: 11/29/2022] Open
Abstract
Background G protein-coupled bile acid receptor 1 (GPBAR1) is a G protein-coupled receptor for bile acids, which is widely expressed in many human tissues. Patchouli alcohol (PA) has been shown to have an anti-cancer effect, including in prostate cancer (PCa). This study sought to confirm the regulatory mechanism of GPBAR1 in the anti-cancer activity of PA in PCa. Methods The SwissTargetPrediction website (Pro >0) was used to predict the target of PA. The UALCAN and The Cancer Genome Atlas-Prostate cohort was used to examine the differentially expressed genes and PCa recurrence. A gene set enrichment analysis (GSEA) was conducted to analyze the relationship between the expression of GPBAR1 and PCa proliferation, migration, and invasion. Cell proliferation, migration, and invasion were assessed by colony formation, 5-Ethynyl-2'-deoxyuridine staining, cell scratch assays, and Transwell invasion assays, respectively. A xenograft animal model was established to assess the effect of PA on tumor growth in vivo. GPBAR1 protein and apoptosis related protein expression was measured by western blot. Results GPBAR1 was a PA target predicted by the SwissTargetPrediction website. PA inhibited the expression of GPBAR1 in PCa cells in a time- and dose-dependent manner. The abnormal expression of GPBAR1 was related to cell proliferation, migration, and invasion. Additionally, GPBAR1 overexpression promoted the cell proliferation, migration, and invasion, and inhibited the apoptosis of PCa cells. GPBAR1 silencing inhibited the cell proliferation, migration, and invasion, and promoted the apoptosis of PCa cells. High expressions of GPBAR1 suppressed tumor growth in tumor-bearing mice. Further, GPBAR1 promoted the activation of nuclear factor kappa B (NF-κB) signaling, and PA regulated the malignant phenotypes of PCa cells via the NF-κB signaling pathway mediated by GPBAR1. Conclusions GPBAR1 is a promising drug target of PA, and was shown to regulate the proliferation, apoptosis, migration, and invasion of PCa cells through GPBAR1/NF-κB inhibition.
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Affiliation(s)
- Jian Cai
- Department of Urology and Andrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Juan Zhao
- Department of Urology and Andrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Ping Gao
- Department of Urology and Andrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yuguo Xia
- Department of Urology and Andrology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Gao R, Meng X, Xue Y, Mao M, Liu Y, Tian X, Sui B, Li X, Zhang P. Bile acids-gut microbiota crosstalk contributes to the improvement of type 2 diabetes mellitus. Front Pharmacol 2022; 13:1027212. [PMID: 36386219 PMCID: PMC9640995 DOI: 10.3389/fphar.2022.1027212] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 10/13/2022] [Indexed: 10/07/2023] Open
Abstract
Type 2 diabetes mellitus (T2DM) occurs that cannot effectively use the insulin. Insulin Resistance (IR) is a significant characteristic of T2DM which is also an essential treatment target in blood glucose regulation to prevent T2DM and its complications. Bile acids (BAs) are one group of bioactive metabolites synthesized from cholesterol in liver. BAs play an important role in mutualistic symbiosis between host and gut microbiota. It is shown that T2DM is associated with altered bile acid metabolism which can be regulated by gut microbiota. Simultaneously, BAs also reshape gut microbiota and improve IR and T2DM in the bidirectional communications of the gut-liver axis. This article reviewed the findings on the interaction between BAs and gut microbiota in improving T2DM, which focused on gut microbiota and its debinding function and BAs regulated gut microbiota through FXR/TGR5. Meanwhile, BAs and their derivatives that are effective for improving T2DM and other treatments based on bile acid metabolism were also summarized. This review highlighted that BAs play a critical role in the glucose metabolism and may serve as therapeutic targets in T2DM, providing a reference for discovering and screening novel therapeutic drugs.
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Affiliation(s)
- Ruolin Gao
- School of Sports and Health, Shandong Sport University, Jinan, China
| | - Xiangjing Meng
- Shandong Academy of Pharmaceutical Science, Jinan, China
| | - Yili Xue
- School of Sports and Health, Shandong Sport University, Jinan, China
| | - Min Mao
- School of Nursing and Rehabilitation, Shandong University, Jinan, China
| | - Yaru Liu
- School of Sports and Health, Shandong Sport University, Jinan, China
| | - Xuewen Tian
- School of Sports and Health, Shandong Sport University, Jinan, China
| | - Bo Sui
- School of Sports and Health, Shandong Sport University, Jinan, China
| | - Xun Li
- School of Sports and Health, Shandong Sport University, Jinan, China
| | - Pengyi Zhang
- School of Sports and Health, Shandong Sport University, Jinan, China
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