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Shimura T, Keskin Yilmaz N, Rajan D, Cureoglu S, Da Costa Monsanto R. Middle Ear Ossicular Joint Changes in Type 2 Diabetes Mellitus: A Histopathological Study. Laryngoscope 2024; 134:2871-2878. [PMID: 38174760 PMCID: PMC11078616 DOI: 10.1002/lary.31257] [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: 10/25/2023] [Revised: 11/20/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024]
Abstract
OBJECTIVES Although previous research has indicated inner ear changes in diabetes mellitus (DM) patients, no prior study has explored the middle ear, particularly the ossicles and their joints, in DM patients. This study aimed to investigate whether type 2 DM is associated with middle ear changes, specifically affecting the ossicular chain and joints. METHODS This study included 47 ears from 25 patients with DM (male = 13, female = 12, age: 51.0 ± 20.5) and age- and sex-matched controls (male = 10, female = 10, age: 54.8 ± 15.9) (sex; p = 1.000, Age; p = 0.991). Otopathological evaluations of the auditory ossicles and incudomalleolar joint (IMJ) were performed using light microscopy. RESULTS In the IMJ of DM cases, malleus hyalinized cartilage (Malleus hC) and incus hyalinized cartilage (Incus hC) were significantly increased compared with control cases (Malleus hC; DM, 34.17 ± 9.71 μm vs. control 21.96 ± 4.16 μm, p < 0.001) (Incus hC; DM 35.11 ± 10.12 μm vs. control 22.42 ± 4.368 μm, p < 0.001). In addition, bone-line distance was significantly longer than in DM cases than control cases (DM 266.72 ± 59.11 μm vs. control 239.81 ± 35.56 μm p = 0.040). On the other hand, joint discus distance was longer in the control group than in DM cases (DM 96.84 ± 36.80 μm vs. Control 113.63 ± 23.81 μm, p = 0.001). CONCLUSIONS This study reveals a notable increase in the hyalinized cartilage layer and bone-line distance accompanied by reducing joint discus distance within the IMJ in DM cases. These findings suggest that DM may influence microjoints, such as the IMJ, and potentially impact auditory function. EVIDENCE LEVEL N/A Laryngoscope, 134:2871-2878, 2024.
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Affiliation(s)
- Tomotaka Shimura
- Department of Otolaryngology Head & Neck Surgery, University of Minnesota, Minneapolis, Minnesota, U.S.A
- Department of Otorhinolaryngology, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Nevra Keskin Yilmaz
- Department of Otolaryngology Head & Neck Surgery, University of Minnesota, Minneapolis, Minnesota, U.S.A
- Department of Internal Medicine, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | - Dilshan Rajan
- Department of Otolaryngology Head & Neck Surgery, University of Minnesota, Minneapolis, Minnesota, U.S.A
| | - Sebahattin Cureoglu
- Department of Otolaryngology Head & Neck Surgery, University of Minnesota, Minneapolis, Minnesota, U.S.A
| | - Rafael Da Costa Monsanto
- Department of Otolaryngology Head & Neck Surgery, University of Minnesota, Minneapolis, Minnesota, U.S.A
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Peighami R, Mehrnia M, Yazdian F, Sheikhpour M. Biocompatibility evaluation of polyethersulfone-pyrolytic carbon composite membrane in artificial pancreas. Biointerphases 2023; 18:021003. [PMID: 36944533 DOI: 10.1116/6.0002155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023] Open
Abstract
Polyethersulfone (PES) membranes are widely used in medical devices, especially intravascular devices such as intravascular bioartificial pancreases. In the current work, the pure PES and PES-pyrolytic carbon (PyC) composite membranes were synthesized and permeability studies were conducted. In addition, the cytocompatibility and hemocompatibility of the pure PES and PES-PyC membranes were investigated. These materials were characterized using peripheral blood mononuclear cell (PBMC) activation, platelet activation, platelet adhesion, ß-cell viability and proliferation, and ß-cell response to hyperglycemia. The results showed that platelet activation decreased from 87.3% to 27.8%. Any alteration in the morphology of sticking platelets was prevented, and the number of attached platelets decreased by modification with PyC. The 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide assay corroborated that PBMC activation was encouraged by the PyC-modified PES membrane surface. It can be concluded that PES-modified membranes show higher hemocompatibility than pure PES membranes. ß-cells cultured on all the three membranes displayed a lower rate of proliferation although the cells on the PES-PyC (0.1 wt. %) membrane indicated a slightly higher viability and proliferation than those on the pure PES and PES-PyC (0.05 wt. %) membranes. It shows that the PES-PyC (0.1 wt. %) membrane possesses superior cytocompatibility over the other membranes.
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Affiliation(s)
- Reza Peighami
- Department of Life Science Engineering, Faculty of New Science and Technology, University of Tehran, Tehran 1439956191, Iran
| | - Mohamadreza Mehrnia
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran 1417614411, Iran
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Science and Technology, University of Tehran, Tehran 1439956191, Iran
| | - Mojgan Sheikhpour
- Department of Mycobacteriology and Pulmonary Research, Pasteur Institute of Iran, Microbiology Research Center (MRC), Pasteur Institute of Iran, Tehran 1316943551, Iran
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Knights AJ, Farrell EC, Ellis OM, Lammlin L, Junginger LM, Rzeczycki PM, Bergman RF, Pervez R, Cruz M, Knight E, Farmer D, Samani AA, Wu CL, Hankenson KD, Maerz T. Synovial fibroblasts assume distinct functional identities and secrete R-spondin 2 in osteoarthritis. Ann Rheum Dis 2023; 82:272-282. [PMID: 36175067 PMCID: PMC9972892 DOI: 10.1136/ard-2022-222773] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 09/22/2022] [Indexed: 02/04/2023]
Abstract
OBJECTIVES Synovium is acutely affected following joint trauma and contributes to post-traumatic osteoarthritis (PTOA) progression. Little is known about discrete cell types and molecular mechanisms in PTOA synovium. We aimed to describe synovial cell populations and their dynamics in PTOA, with a focus on fibroblasts. We also sought to define mechanisms of synovial Wnt/β-catenin signalling, given its emerging importance in arthritis. METHODS We subjected mice to non-invasive anterior cruciate ligament rupture as a model of human joint injury. We performed single-cell RNA-sequencing to assess synovial cell populations, subjected Wnt-GFP reporter mice to joint injury to study Wnt-active cells, and performed intra-articular injections of the Wnt agonist R-spondin 2 (Rspo2) to assess whether gain of function induced pathologies characteristic of PTOA. Lastly, we used cultured fibroblasts, macrophages and chondrocytes to study how Rspo2 orchestrates crosstalk between joint cell types. RESULTS We uncovered seven distinct functional subsets of synovial fibroblasts in healthy and injured synovium, and defined their temporal dynamics in early and established PTOA. Wnt/β-catenin signalling was overactive in PTOA synovium, and Rspo2 was strongly induced after injury and secreted exclusively by Prg4hi lining fibroblasts. Trajectory analyses predicted that Prg4hi lining fibroblasts arise from a pool of Dpp4+ mesenchymal progenitors in synovium, with SOX5 identified as a potential regulator of this emergence. We also showed that Rspo2 orchestrated pathological crosstalk between synovial fibroblasts, macrophages and chondrocytes. CONCLUSIONS Synovial fibroblasts assume distinct functional identities during PTOA in mice, and Prg4hi lining fibroblasts secrete Rspo2 that may drive pathological joint crosstalk after injury.
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Affiliation(s)
- Alexander J. Knights
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Easton C. Farrell
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Olivia M. Ellis
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Lindsey Lammlin
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Lucas M. Junginger
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Phillip M. Rzeczycki
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Rachel F. Bergman
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Rida Pervez
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Monique Cruz
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Eleanor Knight
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Dennis Farmer
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Alexa A. Samani
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA
| | - Chia-Lung Wu
- Department of Orthopaedic Surgery and Rehabilitation, Center for Musculoskeletal Research, University of Rochester, Rochester, NY, USA
| | - Kurt D. Hankenson
- Orthopaedic Research Laboratories, Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA,Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Tristan Maerz
- Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, Michigan, USA .,Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, USA
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Asaoka R, Kiyomatsu H, Miura H, Jono A, Kinoshita T, Takao M, Katagiri T, Oshima Y. Prognostic potential and pathological validation of a diagnostic application using Raman spectroscopy in the characterization of degenerative changes in the cartilage of the humeral head. JOURNAL OF BIOMEDICAL OPTICS 2022; 27:115002. [PMID: 36352498 PMCID: PMC9646464 DOI: 10.1117/1.jbo.27.11.115002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
SIGNIFICANCE Raman spectroscopy is a well-established analytical method in the fields of chemistry, industry, biology, pharmaceutics, and medicine. Previous studies have investigated optical imaging and Raman spectroscopy for osteoarthritis (OA) diagnosis in weight-bearing joints such as hip and knee joints. However, to realize early diagnosis or a curable treatment, it is still challenging to understand the correlations with intrinsic factors or patients’ background. AIM To elucidate the correlation between the Raman spectral features and pathological variations of human shoulder joint cartilage. APPROACH Osteoarthritic cartilage specimens excised from the humeral heads of 14 patients who underwent shoulder arthroplasty were assessed by a confocal Raman microscope and histological staining. The Raman spectroscopic dataset of degenerative cartilage was further analyzed by principal component analysis and hierarchical cluster analysis. RESULTS Multivariate association of the Raman spectral data generated three major clusters. The first cluster of patients shows a relatively high Raman intensity of collagen. The second cluster displays relatively low Raman intensities of proteoglycans (PGs) and glycosaminoglycans (GAGs), whereas the third cluster shows relatively high Raman intensities of PGs and GAGs. The reduced PGs and GAGs are typical changes in OA cartilage, which have been confirmed by safranin–O staining. In contrast, the increased Raman intensities of collagen, PGs, and GAGs may reflect the instability of the cartilage matrix structure in OA patients. CONCLUSIONS The results obtained confirm the correlation between the Raman spectral features and pathological variations of human shoulder joint cartilage. Unsupervised machine learning methods successfully yielded a clinically meaningful classification between the shoulder OA patients. This approach not only has potential to confirm severity of cartilage defects but also to determine the origin of an individual’s OA by evaluating the cartilage quality.
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Affiliation(s)
- Ryuji Asaoka
- University of Toyama, Graduate School of Science and Engineering, Toyama, Japan
| | - Hiroshi Kiyomatsu
- Ehime University, Graduate School of Medicine, Department of Bone and Joint Surgery, Toon, Japan
| | | | - Akihiro Jono
- Ehime University, Graduate School of Medicine, Department of Bone and Joint Surgery, Toon, Japan
| | - Tomofumi Kinoshita
- Ehime University, Graduate School of Medicine, Department of Bone and Joint Surgery, Toon, Japan
| | - Masaki Takao
- Ehime University, Graduate School of Medicine, Department of Bone and Joint Surgery, Toon, Japan
| | | | - Yusuke Oshima
- University of Toyama, Faculty of Engineering, Toyama, Japan
- University of Toyama, Research Center for Pre-Disease Science, Toyama, Japan
- Oita University, Faculty of Medicine, Yufu, Japan
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Osteoarthritis: New Insight on Its Pathophysiology. J Clin Med 2022; 11:jcm11206013. [PMID: 36294334 PMCID: PMC9604603 DOI: 10.3390/jcm11206013] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 09/19/2022] [Accepted: 10/08/2022] [Indexed: 11/17/2022] Open
Abstract
Understanding of the basis of osteoarthritis (OA) has seen some interesting advancements in recent years. It has been observed that cartilage degeneration is preceded by subchondral bone lesions, suggesting a key role of this mechanism within the pathogenesis and progression of OA, as well as the formation of ectopic bone and osteophytes. Moreover, low-grade, chronic inflammation of the synovial lining has gained a central role in the definition of OA physiopathology, and central immunological mechanisms, innate but also adaptive, are now considered crucial in driving inflammation and tissue destruction. In addition, the role of neuroinflammation and central sensitization mechanisms as underlying causes of pain chronicity has been characterized. This has led to a renewed definition of OA, which is now intended as a complex multifactorial joint pathology caused by inflammatory and metabolic factors underlying joint damage. Since this evidence can directly affect the definition of the correct therapeutic approach to OA, an improved understanding of these pathophysiological mechanisms is fundamental. To this aim, this review provides an overview of the most updated evidence on OA pathogenesis; it presents the most recent insights on the pathophysiology of OA, describing the interplay between immunological and biochemical mechanisms proposed to drive inflammation and tissue destruction, as well as central sensitization mechanisms. Moreover, although the therapeutic implications consequent to the renewed definition of OA are beyond this review scope, some suggestions for intervention have been addressed.
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Sebastian A, Hum NR, McCool JL, Wilson SP, Murugesh DK, Martin KA, Rios-Arce ND, Amiri B, Christiansen BA, Loots GG. Single-cell RNA-Seq reveals changes in immune landscape in post-traumatic osteoarthritis. Front Immunol 2022; 13:938075. [PMID: 35967299 PMCID: PMC9373730 DOI: 10.3389/fimmu.2022.938075] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/06/2022] [Indexed: 12/13/2022] Open
Abstract
Osteoarthritis (OA) is the most common joint disease, affecting over 300 million people world-wide. Accumulating evidence attests to the important roles of the immune system in OA pathogenesis. Understanding the role of various immune cells in joint degeneration or joint repair after injury is vital for improving therapeutic strategies for treating OA. Post-traumatic osteoarthritis (PTOA) develops in ~50% of individuals who have experienced an articular trauma like an anterior cruciate ligament (ACL) rupture. Here, using the high resolution of single-cell RNA sequencing, we delineated the temporal dynamics of immune cell accumulation in the mouse knee joint after ACL rupture. Our study identified multiple immune cell types in the joint including neutrophils, monocytes, macrophages, B cells, T cells, NK cells and dendritic cells. Monocytes and macrophage populations showed the most dramatic changes after injury. Further characterization of monocytes and macrophages reveled 9 major subtypes with unique transcriptomics signatures, including a tissue resident Lyve1hiFolr2hi macrophage population and Trem2hiFcrls+ recruited macrophages, both showing enrichment for phagocytic genes and growth factors such as Igf1, Pdgfa and Pdgfc. We also identified several genes induced or repressed after ACL injury in a cell type-specific manner. This study provides new insight into PTOA-associated changes in the immune microenvironment and highlights macrophage subtypes that may play a role in joint repair after injury.
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Affiliation(s)
- Aimy Sebastian
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
- *Correspondence: Aimy Sebastian, ; Gabriela G. Loots,
| | - Nicholas R. Hum
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Jillian L. McCool
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
- School of Natural Sciences, University of California Merced, Merced, CA, United States
| | - Stephen P. Wilson
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Deepa K. Murugesh
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Kelly A. Martin
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Naiomy Deliz Rios-Arce
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Beheshta Amiri
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
| | - Blaine A. Christiansen
- Department of Orthopaedic Surgery, University of California Davis Health, Sacramento, CA, United States
| | - Gabriela G. Loots
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, CA, United States
- School of Natural Sciences, University of California Merced, Merced, CA, United States
- *Correspondence: Aimy Sebastian, ; Gabriela G. Loots,
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Rios‐Arce ND, Hum NR, Loots GG. Interactions between diabetes mellitus and osteoarthritis; from animal studies to clinical data. JBMR Plus 2022; 6:e10626. [PMID: 35509632 PMCID: PMC9059469 DOI: 10.1002/jbm4.10626] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 03/23/2022] [Accepted: 03/30/2022] [Indexed: 01/15/2023] Open
Abstract
Diabetes mellitus (DM) and osteoarthritis (OA) are commonly known metabolic diseases that affect a large segment of the world population. These two conditions share several risk factors such as obesity and aging; however, there is still no consensus regarding the direct role of DM on OA development and progression. Interestingly, both animal and human studies have yielded conflicting results, with some showing a significant role for DM in promoting OA, while others found no significant interactions between these conditions. In this review, we will discuss preclinical and clinical data that assessed the interaction between DM and OA. We will also discuss possible mechanisms associated with the effect of high glucose on the articular cartilage and chondrocytes. An emerging theme dominates the breath of published work in this area: most of the studies discussed in this review do not take into consideration the role of other factors such as the type of diabetes, age, biological sex, type of animal model, body mass index, and the use of pain medications when analyzing and interpreting data. Therefore, future studies should be more rigorous when designing experiments looking at DM and its effects on OA and should carefully account for these confounding factors, so that better approaches can be developed for monitoring and treating patients at risk of OA and DM. © 2022 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Naiomy D. Rios‐Arce
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratories Livermore CA USA
| | - Nicholas R. Hum
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratories Livermore CA USA
| | - Gabriela G. Loots
- Physical and Life Sciences Directorate, Lawrence Livermore National Laboratories Livermore CA USA
- Molecular and Cell Biology, School of Natural Sciences University of California Merced Merced CA USA
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