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Sengprasert P, Waitayangkoon P, Kamenkit O, Sawatpanich A, Chaichana T, Wongphoom J, Ngarmukos S, Taweevisit M, Lotinun S, Tumwasorn S, Tanavalee A, Reantragoon R. Catabolic mediators from TLR2-mediated proteoglycan aggrecan peptide-stimulated chondrocytes are reduced by Lactobacillus-conditioned media. Sci Rep 2024; 14:18043. [PMID: 39103466 PMCID: PMC11300663 DOI: 10.1038/s41598-024-68404-9] [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: 09/20/2023] [Accepted: 07/23/2024] [Indexed: 08/07/2024] Open
Abstract
In osteoarthritis (OA), extracellular matrix (ECM) digestion by cartilage-degrading enzymes drives cartilage destruction and generates ECM fragments, such as proteoglycan aggrecan (PG) peptides. PG peptides have been shown to induce immunological functions of chondrocytes. However, the role of PG peptides in stimulating catabolic mediators from chondrocytes has not been investigated. Therefore, we aim to determine the effects and its mechanism by which PG peptides induce chondrocytes to produce catabolic mediators in OA. Human chondrocytes were stimulated with IFNγ and various PG peptides either (i) with or (ii) without TLR2 blockade or (iii) with Lactobacillus species-conditioned medium (LCM), a genus of bacteria with anti-inflammatory properties. Transcriptomic analysis, cartilage-degrading enzyme production and TLR2-intracellular signaling activation were investigated. Chondrocytes treated with PG peptides p16-31 and p263-280 increased expression levels of genes associated with chondrocyte hypertrophy, cartilage degradation and proteolytic enzyme production. TLR2 downstream signaling proteins (STAT3, IkBα and MAPK9) were significantly phosphorylated in p263-280 peptide-stimulated chondrocytes. MMP-1 and ADAMTS-4 were significantly reduced in p263-280 peptides-treated condition with TLR2 blockade or LCM treatment. Phosphorylation levels of IkBa, ERK1/2 and MAPK9 were significantly decreased with TLR2 blockade, but only phosphorylation levels of MAPK9 was significantly decreased with LCM treatment. Our study showed that PG peptide stimulation via TLR2 induced cartilage-degrading enzyme production via activation of MAPK, NFκB and STAT3 pathways.
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Affiliation(s)
- Panjana Sengprasert
- Immunology Division, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Bangkok, 10330, Thailand
| | - Palapun Waitayangkoon
- Immunology Division, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Bangkok, 10330, Thailand
| | - Ousakorn Kamenkit
- Medical Microbiology Interdisciplinary Program, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Ajcharaporn Sawatpanich
- Bacteriology Division, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Thiamjit Chaichana
- Department of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Jutamas Wongphoom
- Department of Pathology, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Srihatach Ngarmukos
- Department of Orthopedics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Biologics for Knee Osteoarthritis Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Mana Taweevisit
- Department of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sutada Lotinun
- Department of Physiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
- Center of Excellence in Skeletal Disorders and Enzyme Reaction Mechanism, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
| | - Somying Tumwasorn
- Bacteriology Division, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Aree Tanavalee
- Department of Orthopedics, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
- Biologics for Knee Osteoarthritis Research Unit, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Rangsima Reantragoon
- Immunology Division, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, 1873 Rama 4 Road, Bangkok, 10330, Thailand.
- Center of Excellence in Immunology and Immune-Mediated Diseases, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
- Center of Excellence in Skeletal Disorders and Enzyme Reaction Mechanism, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.
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Chen LC, Lin YY, Tsai YS, Chen CC, Chang TC, Chen HT, Hsu CJ, Tang CH. Live and Dead Clostridium butyricum GKB7 Diminish Osteoarthritis Pain and Progression in Preclinical Animal Model. ENVIRONMENTAL TOXICOLOGY 2024. [PMID: 38923690 DOI: 10.1002/tox.24367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2024] [Revised: 05/01/2024] [Accepted: 05/10/2024] [Indexed: 06/28/2024]
Abstract
Osteoarthritis (OA) is a degenerative joint disease primarily affecting the elderly. It is characterized by the progressive decline of joint cartilage and alterations in the underlying bone. Several probiotic strains have exhibited immunomodulatory and anti-inflammatory properties. Here, we examined the functions of live and dead Clostridium butyricum GKB7 (GKB7-L and GKB7-D) in a preclinical anterior cruciate ligament transection (ACLT)-enhanced OA procedure. Oral administration of GKB7-L and GKB7-D ameliorated ACLT-induced bone pain as assessed by weight-bearing behavioral testing but did not affect body weight. Micro-computed tomography (CT) results showed that GKB7-L and GKB7-D diminished ACLT-induced bone destruction and loss. GKB7-L and GKB7-D-enriched therapies also reduced ACLT-induced production of the pro-inflammatory cytokines interleukin (IL)-1β and tumor necrosis factor (TNF)-α, as well as the chondrolytic factor matrix metalloproteinase (MMP)-3, leading to inhibition of aggrecan and collagen type II degradation and thereby blocking cartilage breakdown. We therefore suggest that oral supplementation with GKB7-L or GKB7-D can be beneficial in the prevention and treatment of OA.
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Affiliation(s)
- Li-Chai Chen
- Department of Pharmacy, Tajen University, Pingtung, Taiwan
| | - Yen-You Lin
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
| | - You-Shan Tsai
- Biotech Research Institute, Grape King Bio Ltd., Taoyuan, Taiwan
| | - Chin-Chu Chen
- Biotech Research Institute, Grape King Bio Ltd., Taoyuan, Taiwan
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Tzu-Ching Chang
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
| | - Hsien-Te Chen
- Department of Sports Medicine, College of Health Care, China Medical University, Taichung, Taiwan
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung, Taiwan
| | - Chin-Jung Hsu
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung, Taiwan
- School of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Chih-Hsin Tang
- Department of Pharmacology, School of Medicine, China Medical University, Taichung, Taiwan
- Chinese Medicine Research Center, China Medical University, Taichung, Taiwan
- Department of Medical Laboratory Science and Biotechnology, College of Medical and Health Science, Asia University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hsinchu Hospital, Hsinchu, Taiwan
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Rahman SO, Bariguian F, Mobasheri A. The Potential Role of Probiotics in the Management of Osteoarthritis Pain: Current Status and Future Prospects. Curr Rheumatol Rep 2023; 25:307-326. [PMID: 37656392 PMCID: PMC10754743 DOI: 10.1007/s11926-023-01108-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2023] [Indexed: 09/02/2023]
Abstract
PURPOSE OF REVIEW This narrative review article comprehensively explains the pathophysiology of osteoarthritis (OA) pain perception, how the gut microbiota is correlated with it, possible molecular pathways involved in probiotics-mediated OA pain reduction, limitations in the current research approaches, and future perspectives. RECENT FINDINGS The initiation and progression of OA, including the development of chronic pain, is intricately associated with activation of the innate immune system and subsequent inflammatory responses. Trauma, lifestyle (e.g., obesity and metabolic disease), and chronic antibiotic treatment can disrupt commensal homeostasis of the human microbiome, thereby affecting intestinal integrity and promoting leakage of bacterial endotoxins and metabolites such as lipopolysaccharides (LPS) into circulation. Increased level of LPS is associated with knee osteophyte severity and joint pain. Both preclinical and clinical studies strongly suggest that probiotics may benefit patients with OA pain through positive gut microbiota modulation and attenuating low-grade inflammation via multiple pathways. Patent data also suggests increased interest in the development of new innovations that involve probiotic use for reducing OA and joint pain. Recent data suggest that probiotics are attracting more and more attention for OA pain management. The advancement of knowledge in this area may pave the way for developing different probiotic strains that can be used to support joint health, improve treatment outcomes in OA, and reduce the huge impact of the disease on healthcare systems worldwide.
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Affiliation(s)
| | - Frédérique Bariguian
- Haleon (Formerly GSK Consumer Healthcare), Route de L'Etraz 2, Case Postale 1279, 1260, Nyon 1, Switzerland.
| | - Ali Mobasheri
- Research Unit of Health Sciences and Technology, Faculty of Medicine, University of Oulu, 90014, Oulu, FI, Finland.
- Department of Regenerative Medicine, State Research Institute Centre for Innovative Medicine, Vilnius, Lithuania.
- Department of Joint Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
- World Health Organization Collaborating Centre for Public Health Aspects of Musculoskeletal Health and Aging, Liege, Belgium.
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Sun C, Zhou X, Guo T, Meng J. The immune role of the intestinal microbiome in knee osteoarthritis: a review of the possible mechanisms and therapies. Front Immunol 2023; 14:1168818. [PMID: 37388748 PMCID: PMC10306395 DOI: 10.3389/fimmu.2023.1168818] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 06/02/2023] [Indexed: 07/01/2023] Open
Abstract
Osteoarthritis (OA) is a chronic degenerative joint disease characterized by cartilage damage and synovial inflammation and carries an enormous public health and economic burden. It is crucial to uncover the potential mechanisms of OA pathogenesis to develop new targets for OA treatment. In recent years, the pathogenic role of the gut microbiota in OA has been well recognized. Gut microbiota dysbiosis can break host-gut microbe equilibrium, trigger host immune responses and activate the "gut-joint axis", which aggravates OA. However, although the role of the gut microbiota in OA is well known, the mechanisms modulating the interactions between the gut microbiota and host immunity remain unclear. This review summarizes research on the gut microbiota and the involved immune cells in OA and interprets the potential mechanisms for the interactions between the gut microbiota and host immune responses from four aspects: gut barrier, innate immunity, adaptive immunity and gut microbiota modulation. Future research should focus on the specific pathogen or the specific changes in the gut microbiota composition to identify the related signaling pathways involved in the pathogenesis of OA. In addition, future studies should include more novel interventions on immune cell modifications and gene regulation of specific gut microbiota related to OA to validate the application of gut microbiota modulation in the onset of OA.
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Affiliation(s)
- Chang Sun
- Department of Orthopedics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Xing Zhou
- Department of Orthopedics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Ting Guo
- Department of Orthopedics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Jia Meng
- Department of Orthopedics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
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Chang SLY, Lin YY, Liu SC, Tsai YS, Lin SW, Chen YL, Chen CC, Ko CY, Chen HT, Chen WC, Tang CH. Oral Administration of Clostridium butyricum GKB7 Ameliorates Signs of Osteoarthritis in Rats. Cells 2022; 11:2169. [PMID: 35883610 PMCID: PMC9323988 DOI: 10.3390/cells11142169] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/06/2022] [Accepted: 07/07/2022] [Indexed: 12/24/2022] Open
Abstract
Osteoarthritis (OA) is a degenerative and painful inflammatory joint disease affecting the cartilage, bone, and synovial membranes, without any effective treatment that targets the underlying mechanisms of OA. Our study evaluated the therapeutic effects of a live probiotic strain, Clostridium butyricum GKB7, administered for 6 weeks to rats with knee OA (KOA) induced by anterior cruciate ligament transection (ACLT) of the right knee. All rats underwent weekly weight-bearing behavioral testing and body weight measurements. At 6 weeks, all rats were sacrificed, and the right hind knees were collected for micro-computed tomography imaging and histopathological and immunohistochemical analyses. Compared with rats in the ACLT-only group, ACLT rats administered the probiotic exhibited dramatic improvements in pain-related behavior from postoperative week 2, had significantly less osseous and cartilaginous damage at week 6, and significantly lower levels of the inflammatory markers interleukin 1 beta (IL-1β) and tumor necrosis factor alpha (TNF-α) in cartilage and synovium sections. C. butyricum GKB7 appeared to slow or even reverse OA progression and is worth investigating as a novel therapeutic for OA.
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Affiliation(s)
- Sunny Li-Yun Chang
- Graduate Institute of Biomedical Science, China Medical University, Taichung 404333, Taiwan; (S.L.-Y.C.); (C.-Y.K.)
- School of Medicine, China Medical University, Taichung 404333, Taiwan;
| | - Yen-You Lin
- School of Medicine, China Medical University, Taichung 404333, Taiwan;
| | - Shan-Chi Liu
- Department of Medical Education and Research, Beigang Hospital, China Medical University, Yunlin 651012, Taiwan;
| | - You-Shan Tsai
- Biotech Research Institute, Grape King Bio Ltd., Taoyuan 325002, Taiwan; (Y.-S.T.); (S.-W.L.); (Y.-L.C.)
| | - Shih-Wei Lin
- Biotech Research Institute, Grape King Bio Ltd., Taoyuan 325002, Taiwan; (Y.-S.T.); (S.-W.L.); (Y.-L.C.)
| | - Yen-Lien Chen
- Biotech Research Institute, Grape King Bio Ltd., Taoyuan 325002, Taiwan; (Y.-S.T.); (S.-W.L.); (Y.-L.C.)
| | - Chin-Chu Chen
- Institute of Food Science and Technology, National Taiwan University, Taipei 106617, Taiwan;
- Department of Food Science, Nutrition and Nutraceutical Biotechnology, Shih Chien University, Taipei 104036, Taiwan
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Chih-Yuan Ko
- Graduate Institute of Biomedical Science, China Medical University, Taichung 404333, Taiwan; (S.L.-Y.C.); (C.-Y.K.)
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung 404333, Taiwan;
| | - Hsien-Te Chen
- Department of Orthopedic Surgery, China Medical University Hospital, Taichung 404333, Taiwan;
- Department of Sports Medicine, College of Health Care, China Medical University, Taichung 404333, Taiwan
| | - Wei-Cheng Chen
- Department of Medicine, MacKay Medical College, New Taipei 25245, Taiwan
- Division of Sports Medicine & Surgery, Department of Orthopedic Surgery, MacKay Memorial Hospital, Taipei 104217, Taiwan
| | - Chih-Hsin Tang
- Graduate Institute of Biomedical Science, China Medical University, Taichung 404333, Taiwan; (S.L.-Y.C.); (C.-Y.K.)
- School of Medicine, China Medical University, Taichung 404333, Taiwan;
- Chinese Medicine Research Center, China Medical University, Taichung 404333, Taiwan
- Department of Biotechnology, College of Health Science, Asia University, Taichung 40354, Taiwan
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Gleason B, Chisari E, Parvizi J. Osteoarthritis Can Also Start in the Gut: The Gut-Joint Axis. Indian J Orthop 2022; 56:1150-1155. [PMID: 35813544 PMCID: PMC9232669 DOI: 10.1007/s43465-021-00473-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/31/2021] [Indexed: 02/04/2023]
Abstract
Background Osteoarthritis is a common cause of pain and disability with an increasing prevalence among the global population (Hunter and Bierma-Zeinstra in Lancet 393(10182):1745-1759, 2019; Zhang and Jordan in Clinics in Geriatric Medicine 26(3):355-369, 2010). Altered immune responses and low-grade systemic inflammation driven by gut dysbiosis are being increasingly recognized as contributing factors to the pathophysiology of OA (Tan et al. in International Journal of Rheumatic Diseases. https://doi.org/10.1111/1756-185X.14123, 2021; Binvignat et al. in Joint, Bone, Spine 88(5):105203, 2021; Ramasamy et al. in Nutrients 13(4):1272, 2021), which increased the interest in the so-called "gut-joint axis". The various microbiota in the gastrointestinal tract is commonly referred to as the gut microbiome. The gut microbiome is affected by age, sex, and immune system activity as well as medications, environment, and diet (Arumugam in Nature. https://doi.org/10.1038/nature09944, 2011). The microbiome is pivotal to maintain host health and contributes to nutrition, host defense, and immune development (Nishida et al. in Clinical Journal of Gastroenterology 11:1-10, 2018). Alterations in this microbiome can induce dysbiosis, which is associated with many human disease states including allergies, autoimmune disease, diabetes, and cancer (Lin and Zhang in BMC Immunology 18(1):2, 2017). A gut-joint axis is proposed as a link involving the gastrointestinal microbiome, the immune response that it induces, and joint health. Results Emerging evidence has shown that there are specific changes in the microbiome that are associated with osteoarthritis, including increased Firmicutes/Bacteroides ratio, Streptococcus spp. prevalence, and local inflammation (Collins in Osteoarthritis and Cartilage. https://doi.org/10.1016/j.joca.2015.03.014, 2015; Rios in Science and Reports. https://doi.org/10.1038/s41598-019-40601-x, 2019; Schott in JCI insight. https://doi.org/10.1172/jci.insight.95997, 2018; Boer et al. in Nature Communications 10:4881, 2019). Both the innate and adaptive immune systems are affected by the gut microbiome and can become dysregulated in dysbiosis which ultimately triggers events associated with joint OA. Conclusions The gut is an intriguing and novel target for OA therapy. Dietary modification or supplementation with fiber, probiotics, or prebiotics could provide a positive impact on the gut joint axis.
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Affiliation(s)
- Brendan Gleason
- Rothman Orthopaedic Institute at Thomas Jefferson University, 125 S 9th St. Ste 1000, Philadelphia, PA 19107 USA
| | - Emanuele Chisari
- Rothman Orthopaedic Institute at Thomas Jefferson University, 125 S 9th St. Ste 1000, Philadelphia, PA 19107 USA
- Department of Medical Microbiology and Infection Prevention, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Javad Parvizi
- Rothman Orthopaedic Institute at Thomas Jefferson University, 125 S 9th St. Ste 1000, Philadelphia, PA 19107 USA
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Lian WS, Wang FS, Chen YS, Tsai MH, Chao HR, Jahr H, Wu RW, Ko JY. Gut Microbiota Ecosystem Governance of Host Inflammation, Mitochondrial Respiration and Skeletal Homeostasis. Biomedicines 2022; 10:biomedicines10040860. [PMID: 35453611 PMCID: PMC9030723 DOI: 10.3390/biomedicines10040860] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 03/28/2022] [Accepted: 03/31/2022] [Indexed: 02/06/2023] Open
Abstract
Osteoporosis and osteoarthritis account for the leading causes of musculoskeletal dysfunction in older adults. Senescent chondrocyte overburden, inflammation, oxidative stress, subcellular organelle dysfunction, and genomic instability are prominent features of these age-mediated skeletal diseases. Age-related intestinal disorders and gut dysbiosis contribute to host tissue inflammation and oxidative stress by affecting host immune responses and cell metabolism. Dysregulation of gut microflora correlates with development of osteoarthritis and osteoporosis in humans and rodents. Intestinal microorganisms produce metabolites, including short-chain fatty acids, bile acids, trimethylamine N-oxide, and liposaccharides, affecting mitochondrial function, metabolism, biogenesis, autophagy, and redox reactions in chondrocytes and bone cells to regulate joint and bone tissue homeostasis. Modulating the abundance of Lactobacillus and Bifidobacterium, or the ratio of Firmicutes and Bacteroidetes, in the gut microenvironment by probiotics or fecal microbiota transplantation is advantageous to suppress age-induced chronic inflammation and oxidative damage in musculoskeletal tissue. Supplementation with gut microbiota-derived metabolites potentially slows down development of osteoarthritis and osteoporosis. This review provides latest molecular and cellular insights into the biological significance of gut microorganisms and primary and secondary metabolites important to cartilage and bone integrity. It further highlights treatment options with probiotics or metabolites for modulating the progression of these two common skeletal disorders.
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Affiliation(s)
- Wei-Shiung Lian
- Core Laboratory for Phenomics and Diagnostics, Department of Medical Research and Chang Gung University College of Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (F.-S.W.); (Y.-S.C.)
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Feng-Sheng Wang
- Core Laboratory for Phenomics and Diagnostics, Department of Medical Research and Chang Gung University College of Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (F.-S.W.); (Y.-S.C.)
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Yu-Shan Chen
- Core Laboratory for Phenomics and Diagnostics, Department of Medical Research and Chang Gung University College of Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan; (W.-S.L.); (F.-S.W.); (Y.-S.C.)
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Ming-Hsien Tsai
- Department of Child Care, College of Humanities and Social Sciences, National Pingtung University of Science and Technology, No.1, Shuefu Road, Pingtung 91201, Taiwan;
- Emerging Compounds Research Center, General Research Service Center, National Pingtung University of Science and Technology, No.1, Shuefu Road, Pingtung 91201, Taiwan;
| | - How-Ran Chao
- Emerging Compounds Research Center, General Research Service Center, National Pingtung University of Science and Technology, No.1, Shuefu Road, Pingtung 91201, Taiwan;
- Department of Environmental Science and Engineering, College of Engineering, National Pingtung University of Science and Technology, No.1, Shuefu Road, Pingtung 91201, Taiwan
| | - Holger Jahr
- Department of Anatomy and Cell Biology, University Hospital RWTH, 52074 Aachen, Germany;
- Department of Orthopedic Surgery, Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands
| | - Re-Wen Wu
- Department of Orthopedic Surgery, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan;
| | - Jih-Yang Ko
- Department of Orthopedic Surgery, College of Medicine, Chang Gung University, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan;
- Correspondence: ; Tel.: +88-67-731-7123
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