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Chen PJ, Mehta S, Dutra EH, Yadav S. Alendronate treatment rescues the effects of compressive loading of TMJ in osteogenesis imperfecta mice. Prog Orthod 2024; 25:25. [PMID: 39004686 PMCID: PMC11247069 DOI: 10.1186/s40510-024-00526-2] [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: 05/13/2024] [Accepted: 05/21/2024] [Indexed: 07/16/2024] Open
Abstract
BACKGROUND Osteogenesis imperfecta (OI) is a genetic disorder of connective tissue caused by mutations associated with type I collagen, which results in defective extracellular matrix in temporomandibular joint (TMJ) cartilage and subchondral bone. TMJ is a fibrocartilaginous joint expressing type I collagen both in the cartilage and the subchondral bone. In the present study the effects of alendronate and altered loading of the TMJ was analyzed both in male and female OI mice. MATERIALS AND METHODS Forty-eight, 10-weeks-old male and female OI mice were divided into 3 groups: (1) Control group: unloaded group, (2) Saline + Loaded: Saline was injected for 2 weeks and then TMJ of mice was loaded for 5 days, (3) alendronate + loaded: alendronate was injected for 2 weeks and then TMJ of mice was loaded for 5 days. Mice in all the groups were euthanized 24-h after the final loading. RESULTS Alendronate pretreatment led to significant increase in bone volume and tissue density. Histomorphometrically, alendronate treatment led to increase in mineralization, cartilage thickness and proteoglycan distribution. Increased mineralization paralleled decreased osteoclastic activity. Our immunohistochemistry revealed decreased expression of matrix metallopeptidase 13 and ADAM metallopeptidase with thrombospondin type 1 motif 5. CONCLUSION The findings of this research support that alendronate prevented the detrimental effects of loading on the extracellular matrix of the TMJ cartilage and subchondral bone.
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Affiliation(s)
- Po-Jung Chen
- Department of Growth and Development, College of Dentistry, University of Nebraska Medical Center, Lincoln/Omaha, NE, USA.
| | - Shivam Mehta
- Department of Orthodontics, School of Dentistry, Texas A&M University, Dallas, TX, USA
| | - Eliane H Dutra
- Division of Orthodontics, School of Dental Medicine, UConn Health, Farmington, CT, USA
| | - Sumit Yadav
- Department of Growth and Development, College of Dentistry, University of Nebraska Medical Center, Lincoln/Omaha, NE, USA
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Zaimovic N, Lorinson D, Lorinson K, Tichy A, Bockstahler B. Evaluation of the Tibial Plateau-Patella Angle (TPPA) in Dogs. Animals (Basel) 2024; 14:1798. [PMID: 38929417 PMCID: PMC11200802 DOI: 10.3390/ani14121798] [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: 05/07/2024] [Revised: 06/07/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Estimating a dog's patellar position involves various methods, which categorize it as norma, alta (high), or baja (low). However, they require various calculations. We aimed to evaluate the clinical applicability of a new method, the tibial plateau-patella angle (TPPA). This could aid in planning patella luxation surgery, estimating the patella position after TPLO and various osteotomies. We conducted a two-step study: first, on 15 stifles without pathologies from nine canine cadavers, and second, using 100 patient X-rays from the archive. Three stifle angle positions (45 ± 5°, 90 ± 5°, and 135 ± 5°) and three weight groups (S, M, and L) were evaluated in the first part of this study. Based on these results, the second part of this study was conducted using 100 pathology-free radiographs at the optimal stifle angle (90 ± 5°) from the archive. All radiographs were measured by three observers with varying levels of experience. Our results indicate that the stifle angle significantly impacted the TPPA, whereby lower values were detected with higher stifle angles, which remained consistent within the weight groups. High inter- and intra-observer agreement was achieved. The physiological TPPA values ranged from 26.7° to 48.8°, remaining consistent within the various weight groups. Observer 3 in Group S exhibited a 20% (insignificant) deviation, possibly due to challenges in determining the caudal point of the tibial plateau. In contrast with humans, TPPA values in dogs are negatively correlated with stifle angles, independent of weight. Our reliable and reproducible protocol suggests the potential benefits of training on small-breed dogs stifles.
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Affiliation(s)
- Nedim Zaimovic
- Small Animal Surgery, Department for Companion Animals and Horses, University of Veterinary Medicine, 1210 Vienna, Austria
| | - Dragan Lorinson
- Chirurgisches Zentrum für Kleintiere Dr. Lorinson, 2331 Vösendorf, Austria; (D.L.); (K.L.)
| | - Karin Lorinson
- Chirurgisches Zentrum für Kleintiere Dr. Lorinson, 2331 Vösendorf, Austria; (D.L.); (K.L.)
| | - Alexander Tichy
- Platform Bioinformatics and Biostatistics, Department for Biomedical Services, University of Veterinary Medicine, 1120 Vienna, Austria;
| | - Barbara Bockstahler
- Section of Physical Therapy, Small Animal Surgery, Department for Companion Animals and Horses, University of Veterinary Medicine, 1210 Vienna, Austria;
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Bei M, Zheng Z, Xiao Y, Liu N, Cao X, Tian F, Zhang L, Wu X. Effects of alendronate on cartilage lesions and micro-architecture deterioration of subchondral bone in patellofemoral osteoarthritic ovariectomized rats with patella-baja. J Orthop Surg Res 2024; 19:197. [PMID: 38528611 DOI: 10.1186/s13018-024-04677-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/14/2024] [Indexed: 03/27/2024] Open
Abstract
BACKGROUND Patellofemoral osteoarthritis (PFJOA) is a subtype of knee OA, which is one of the main causes of anterior knee pain. The current study found an increased prevalence of OA in postmenopausal women, called postmenopausal OA. Therefore, we designed the ovariectomized rat model of patella baja-induced PFJOA. Alendronate (ALN) inhibits osteoclast-mediated bone loss, and has been reported the favorable result of a potential intervention option of OA treatment. However, the potential effects of ALN treatment on PFJOA in the ovariectomized rat model are unknown and need further investigation prior to exploration in the clinical research setting. In this study, the effects of ALN on articular cartilage degradation and subchondral bone microstructure were assessed in the ovariectomized PFJOA rat model for 10 weeks. METHODS Patella baja and estrogen withdrawal were induced by patellar ligament shortening (PLS) and bilateral ovariectmomy surgeries in 3-month-old female Sprague-Dawley rats, respectively. Rats were randomly divided into five groups (n = 8): Sham + V; OVX + V, Sham + PLS + V, OVX + PLS + V, OVX + PLS + ALN (ALN: 70 μg/kg/week). Radiography was performed to evaluate patellar height ratios, and the progression of PFJOA was assessed by macroscopic and microscopic analyses, immunohistochemistry and micro-computed tomography (micro-CT). RESULTS Our results found that the patella baja model prepared by PLS can successfully cause degeneration of articular cartilage and subchondral bone, resulting in changes of PFJOA. OVX caused a decrease in estrogen levels in rats, which aggravated the joint degeneration caused by PFJOA. Early application of ALN can delay the degenerative changes of articular cartilage and subchondral bone microstructure in castrated PFJOA rat to a certain extent, improve and maintain the micrometabolism and structural changes of cartilage and subchondral bone. CONCLUSION The early application of ALN can delay the destruction of articular cartilage and subchondral bone microstructure in castrated PFJOA rat to a certain extent.
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Affiliation(s)
- Mingjian Bei
- Department of Orthopedic Surgery, Beijing Jishuitan Hospital Affiliated to Capital Medical University, Xinjiekoudongjie 31, Xicheng Dis, Beijing, 100035, People's Republic of China
| | - Zhiyuan Zheng
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, People's Republic of China
| | - Yaping Xiao
- The Department of Orthopedic Surgery, Wuhan Third Hospital, Tongren Hospital of Wuhan University, No. 241, Pengliuyang Road, Wuhan, 430000, People's Republic of China
| | - Ning Liu
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, People's Republic of China
| | - Xuehui Cao
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, People's Republic of China
| | - Faming Tian
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei, People's Republic of China
| | - Liu Zhang
- Department of Orthopedic Surgery, Emergency General Hospital, Xibahenanli 29, Chaoyang District, Beijing, 100028, People's Republic of China
| | - Xinbao Wu
- Department of Orthopedic Surgery, Beijing Jishuitan Hospital Affiliated to Capital Medical University, Xinjiekoudongjie 31, Xicheng Dis, Beijing, 100035, People's Republic of China.
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Ozawa J, Ikeda A, Kanehara M, Moriyama H, Kaneguchi A. Development of patellofemoral osteoarthritis with knee joint malalignment and lateral patellar dislocation after hindlimb suspension in growing rats. J Orthop Res 2024. [PMID: 38368533 DOI: 10.1002/jor.25812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 11/29/2023] [Accepted: 02/03/2024] [Indexed: 02/19/2024]
Abstract
Knee malalignment is a risk factor for patellar instability and patellofemoral osteoarthritis (PFOA), but etiologies remain unknown. We investigated the potential effects of decreased weight loading during growth on knee alignments and patellofemoral (PF) joint pathology. Hindlimb suspension (HS) was performed in 4-week-old female rats for 2, 4, and 8 weeks (HS groups). Age-matched rats were used as controls. Three-dimensional reconstructed images of the knee were obtained using X-ray computed tomography. Tibial tubercle-trochlear groove (TT-TG) distance, patellar tilt angle, and bisect offset were measured as indices of knee alignment. Histological analysis was also performed to evaluate the changes in cartilage and synovium in the PF joints. At Week 8, TT-TG distance, patella tilt angle, and bisect offset were significantly larger in the HS group than in the control group, respectively, indicating tibial external rotation, outward patellar tilt, and external displacement of the patella. Lateral patellar dislocation was frequently found in the HS group at Week 8 (five of eight knee joints, p < 0.05). Degenerative changes in the cartilage of the trochlear groove were observed at Week 8, and synovial changes such as hypertrophy and synovitis were observed at Weeks 4 and 8. Correlation analyses revealed significant relationships between the Mankin score and bisect offset, and between the OARSI synovitis score and all knee alignments indices. These results suggest that decreased weight loading on the lower extremities in growing rats resulted in knee malalignments characterized by external rotation of tibia and high incidence of lateral patellar dislocation with concomitant PFOA.
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Affiliation(s)
- Junya Ozawa
- Department of Rehabilitation, Faculty of Rehabilitation, Hiroshima International University, Hiroshima, Japan
| | - Airi Ikeda
- Graduate School of Medical Technology and Health welfare Sciences, Hiroshima International University, Hiroshima, Japan
- Department of Judo therapy, Takarazuka University of Medical and Health Care, Takarazuka, Hyogo, Japan
| | - Marina Kanehara
- Graduate School of Medical Technology and Health welfare Sciences, Hiroshima International University, Hiroshima, Japan
| | - Hideki Moriyama
- Life and Medical Sciences Area, Health Sciences Discipline, Kobe University, Kobe, Hyogo, Japan
| | - Akinori Kaneguchi
- Department of Rehabilitation, Faculty of Rehabilitation, Hiroshima International University, Hiroshima, Japan
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Ma C, Kou W, Cui Z, Liu W, Liu C, Wang S, Wang F. Patellar instability-induced bone loss in the femoral trochlea is associated with the activation of the JAK1/STAT3 signaling pathway in growing mice. J Orthop Surg Res 2023; 18:526. [PMID: 37488636 PMCID: PMC10364393 DOI: 10.1186/s13018-023-04019-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 07/14/2023] [Indexed: 07/26/2023] Open
Abstract
INTRODUCTION Patellar instability (PI) at an early age is believed closely correlated with bone loss in the development of the femoral trochlea and can cause trochlear dysplasia. However, the molecular mechanism of PI-induced bone loss has not been established. The Janus kinase (JAK)/signal transducers and activators of transcription (STAT) signaling pathway plays an important role in bone development by regulating the expression of osteoprotegerin (OPG) and receptor activator of nuclear factor kappa B ligand (RANKL). The aim of this study was to explore the association of JAK1/STAT3 signaling to PI-induced subchondral bone loss in the femoral trochlea. METHODS Four-week-old male C57BL/6 mice were randomly divided into two groups (n = 50/group). Mice in the experimental group underwent surgery to induce PI. Distal femurs were collected 2 and 4 weeks after surgery (n = 25 knees/each time point, each group). Microcomputed tomography and histological observations were performed to investigate the morphology of the femoral trochlea and changes in bone mass. qPCR, western blot, and immunohistochemistry analyses were performed to evaluate the expression of JAK1, STAT3, RANKL, and OPG in subchondral bone. A t test was performed for the statistical analysis; a P value < 0.05 was considered to be statistically significant. RESULTS In the experimental group, subchondral bone loss in the femoral trochlea was observed two and four weeks after PI; morphological changes, such as a flatter trochlear groove and an increased sulcus angle, were observed in the femoral trochlea; qPCR, western blot, and immunohistochemistry analyses showed higher expression of JAK1, STAT3, and RANKL and lower expression of OPG (P < 0.05). CONCLUSION PI-induced subchondral bone loss in the femoral trochlea and resulted in trochlear dysplasia in growing mice. This bone loss is associated with activation of the JAK1/STAT3 signaling pathway, which weakens the function of osteoblasts and stimulates both formation and function of osteoclasts.
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Affiliation(s)
- Chen Ma
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
- Department of Orthopedic Surgery, Cangzhou People's Hospital, Cangzhou, 061000, Hebei, China
| | - Wenguan Kou
- Department of Orthopedic Surgery, Cangzhou People's Hospital, Cangzhou, 061000, Hebei, China
| | - Zhaoxia Cui
- Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Wenfeng Liu
- Department of Orthopedic Surgery, Cangzhou People's Hospital, Cangzhou, 061000, Hebei, China
| | - Changli Liu
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China
| | - Shengjie Wang
- Department of Orthopedic Surgery, Hengshui People's Hospital, Hengshui, 053000, Hebei, China
| | - Fei Wang
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, Shijiazhuang, 050000, Hebei, China.
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Ozawa J, Kaneguchi A, Ezumi S, Maeno T, Iwazawa J, Minanimoto K, Ikeda A. Effects of hindlimb suspension on development of proximal and distal femur morphological abnormalities in growing rats. J Orthop Res 2023; 41:364-377. [PMID: 35488739 DOI: 10.1002/jor.25352] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 03/07/2022] [Accepted: 04/28/2022] [Indexed: 02/04/2023]
Abstract
Although morphological abnormalities of the femur are known predisposing factors for numerous musculoskeletal disorders, the etiology of these abnormalities is poorly understood. This study aimed to investigate whether femoral morphogenesis is affected by hindlimb suspension (HS) in growing rats. We used 41 four-week-old female rats in this study. In the HS groups, rats were suspended from their tails for 2, 4, and 8 weeks. Age-matched animals were used as controls. We examined morphological indices of the femur using three-dimensional reconstructed images from X-ray computed tomography. The femoral neck anteversion angle (AVA) was higher with growth in the experimental groups and did not differ in control groups. The AVAs in the HS groups were larger than controls at any time point. In the control groups, the trochlear angle (TA) was higher, rotating inward with growth, but did not differ in the HS groups. The TAs in the HS groups were smaller and rotated more outward compared with the control groups at any time point. The height ratios of the medial and lateral condyles (MC/LC), an asymmetry index, were larger in the HS groups compared to controls at any time point. There were strong relationships between proximal (AVA) and distal morphologies, such as the TA (Spearman's coefficient [rs ] = -0.80, p < 0.001) and MC/LC (rs = 0.79, p < 0.001). Our data suggest that sufficient physical activity in early life may protect against morphological femur abnormalities associated with hip and knee joint diseases.
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Affiliation(s)
- Junya Ozawa
- Major in Medical Engineering and Technology, Graduate School of Medical Technology and Health Welfare Sciences, Hiroshima International University, Higashi-Hiroshima, Hiroshima, Japan
| | - Akinori Kaneguchi
- Department of Rehabilitation, Faculty of Rehabilitation, Hiroshima International University, Higashi-Hiroshima, Hiroshima, Japan
| | - Shun Ezumi
- Department of Rehabilitation, Faculty of Rehabilitation, Hiroshima International University, Higashi-Hiroshima, Hiroshima, Japan
| | - Takuma Maeno
- Department of Rehabilitation, Faculty of Rehabilitation, Hiroshima International University, Higashi-Hiroshima, Hiroshima, Japan
| | - Jukiya Iwazawa
- Department of Rehabilitation, Faculty of Rehabilitation, Hiroshima International University, Higashi-Hiroshima, Hiroshima, Japan
| | - Kengo Minanimoto
- Major in Medical Engineering and Technology, Graduate School of Medical Technology and Health Welfare Sciences, Hiroshima International University, Higashi-Hiroshima, Hiroshima, Japan
| | - Airi Ikeda
- Major in Medical Engineering and Technology, Graduate School of Medical Technology and Health Welfare Sciences, Hiroshima International University, Higashi-Hiroshima, Hiroshima, Japan.,Department of Judo Therapy, Takarazuka University of Medical and Health Care, Takarazuka, Hyogo, Japan
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Li X, Zhang S, Du L, Ping F, Gao Q, Liu Y. Microstructural changes of cartilage and subchondral bone in a guinea pig model of early- and middle-stage patellofemoral arthritis. Am J Transl Res 2023; 15:847-857. [PMID: 36915787 PMCID: PMC10006769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 11/27/2022] [Indexed: 03/16/2023]
Abstract
OBJECTIVE Patellofemoral arthritis is a common type of knee osteoarthritis and a prime cause of anterior knee pain and disability. Most of the existing research on knee osteoarthritis focuses on tibial-femoral arthritis, while studies on patellofemoral arthritis are relatively rare. This study aims to observe changes in osteochondral and subchondral bone structure over time in the patella and femoral trochlea in an animal model of spontaneous patellofemoral arthritis. METHODS A total of 24 1-, 3- or 5-month-old healthy female Hartley guinea pigs were used for experiments. No intervention was applied, and the mechanical pain threshold was assessed prior to euthanasia. Bilateral knee joints were collected in the animals at the different ages, and the patellofemoral joints were taken to evaluate the bone microstructure of patellofemoral articular cartilage and subchondral bone by macroscopy, histopathology and micro-computed tomography (micro-CT). RESULTS There was a significant difference in the severity of femoral trochlea injury assessed by the Macro score between 5- and 1-month-old groups (P<0.01), as well as in patellar cartilage damage (P<0.05). The mechanical pain threshold of lower extremities in each group was statistically different between different age groups (P<0.05). The OARSI articular cartilage histopathological scores, including patella and femoral trochlea, were significantly different among 1-, 3- and 5-month-old groups. The 5-month-old group exhibited statistically lower values of bone volume/trabecular volume, trabecular number and trabecular thickness in the femoral subchondral bone and evidently higher structure model index than the 1-month-old group. CONCLUSIONS This study demonstrated that 3- to 5-month-old female Hartley guinea pigs can develop early-to-mid-stage spontaneous patellofemoral arthritis that causes significant cartilage degeneration and loss of subchondral bone. In addition, the bone microarchitecture of the femur is more severely degraded.
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Affiliation(s)
- Xuefeng Li
- Department of Orthopaedics, Honghui Hospital, Xi'an Jiaotong University Xi'an 710054, Shaanxi, China
| | - Shihui Zhang
- Department of Orthopaedics, Honghui Hospital, Xi'an Jiaotong University Xi'an 710054, Shaanxi, China
| | - Longlong Du
- Traditional Chinese Medicine, Honghui Hospital, Xi'an Jiaotong University Xi'an 710054, Shaanxi, China
| | - Fan Ping
- Shaanxi University of Traditional Chinese Medicine School of Pharmacy Xianyang 712046, Shaanxi, China
| | - Qimeng Gao
- The First Clinical Medical College of Shaanxi University of Traditional Chinese Medicine Xianyang 712046, Shaanxi, China
| | - Yafei Liu
- Department of Orthopaedics, Honghui Hospital, Xi'an Jiaotong University Xi'an 710054, Shaanxi, China
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Chen PJ, Wang K, Mehta S, O’Brien MH, Dealy CN, Dutra EH, Yadav S. Anabolic Response of Intermittent Parathyroid Hormone and Alendronate on the Osteochondral Tissue of TMJ. Cartilage 2022; 13:171-183. [PMID: 36239576 PMCID: PMC9924974 DOI: 10.1177/19476035221109229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
OBJECTIVE To characterize the effects of parathyroid hormone (PTH) and alendronate (Alend) on the osteochondral tissue of temporomandibular joint (TMJ). MATERIALS AND METHODS Ninety-six male and female transgenic reporter mice, 4 to 5 weeks old were divided into 6 groups: (1) Control group: Saline was injected daily for 14 days; (2) PTH: PTH was injected daily for 14 days; (3) Alend: Alend was injected every alternate days for 14 days; (4) Combined PTH and Alend: PTH was injected daily and Alend injected every alternate days for 14 days; (5) PTH then Alend: PTH was injected daily for 14 days followed by Alend injections in alternate days for 14 days; and (6) PTH wait Alend: PTH was injected daily for 14 days. There was a waiting period of 1 week before administration of Alend in alternate days for 14 days. Mice were injected with 5-ethnyl-2'-deoxyuridine (EdU), 48 and 24 hours prior to euthanization. RESULTS There was significant increase in bone volume and decrease in osteoclastic activity in groups in which Alend was administered after PTH in both gender. There was significant increase in cartilage thickness with PTH or Alend alone in females, whereas in males, PTH alone led to increase in cartilage thickness. Chondrocyte apoptosis was significantly decreased with PTH or Alend alone in both male and female. Matrix metallopeptidase 13, and aggreganase-2 (ADAMTS5) expression were significantly decreased with PTH and Alend alone in both gender. CONCLUSION PTH and Alend administration causes anabolic effects in the osteochondral tissue of TMJ.
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Affiliation(s)
- Po-Jung Chen
- Division of Orthodontics, School of
Dental Medicine, UConn Health, Farmington, CT, USA
| | - Ke Wang
- Division of Orthodontics, School of
Dental Medicine, UConn Health, Farmington, CT, USA
| | - Shivam Mehta
- Department of Developmental Sciences,
Marquette University School of Dentistry, Milwaukee, WI, USA
| | - Mara H. O’Brien
- Division of Orthodontics, School of
Dental Medicine, UConn Health, Farmington, CT, USA
| | - Caroline N. Dealy
- Division of Orthodontics, School of
Dental Medicine, UConn Health, Farmington, CT, USA
| | - Eliane H. Dutra
- Division of Orthodontics, School of
Dental Medicine, UConn Health, Farmington, CT, USA
| | - Sumit Yadav
- Division of Orthodontics, School of
Dental Medicine, UConn Health, Farmington, CT, USA,Sumit Yadav, Department of Orthodontics,
School of Dental Medicine, UConn Health, 263 Farmington Avenue, MC1725,
Farmington, CT 06030, USA.
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Konrads C, Schreiner AJ, Cober S, Schüll D, Ahmad SS, Alshrouf MA. Evaluation of patella height in native knees and arthroplasty: an instructional review. SICOT J 2022; 8:36. [PMID: 35997518 PMCID: PMC9397114 DOI: 10.1051/sicotj/2022037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/05/2022] [Indexed: 11/25/2022] Open
Abstract
Total knee arthroplasty (TKA) is the gold standard for treating advanced knee osteoarthritis. Among the postoperative complications of TKA are true patella infera (TPI) and pseudo patella infera (PPI), which should be differentiated since TPI exhibits significantly worse clinical outcomes. Multiple radiological patella height indices (PHI) exist; some were modified or originally designed for knees with implanted endoprostheses. However, there is no consensus on measuring and comparing patella height. Due to the lack of established, simple, reliable, and reproducible concepts for assessing patella height for arthroplasty, measuring patella height and the change of patella height by or after TKA have been challenging tasks for clinicians and researchers. This is a review of the current literature on methods for measuring patella height, with special attention to the ability to differentiate between the TPI and PPI after TKA. All literature on the topic was retrieved, and references from relevant articles were investigated until the end of April 2022.
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Affiliation(s)
- Christian Konrads
- Department of Orthopaedic Surgery, University of Tübingen, 72076 Tübingen, Germany
| | | | - Simone Cober
- Department of Orthopaedic Surgery, University of Tübingen, 72076 Tübingen, Germany
| | - Daniel Schüll
- Department of Orthopaedic Surgery, University of Tübingen, 72076 Tübingen, Germany
| | - Sufian S Ahmad
- Department of Orthopaedic Surgery, Hannover Medical School, 30625 Hannover, Germany
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Zhang H, Bei M, Zheng Z, Liu N, Cao X, Xiao Y, Lian Q, Wang Y, Hou X, Tian F. Parathyroid Hormone (1-34) Attenuates Cartilage Degradation and Preserves Subchondral Bone Micro-architecture in Rats with Patella Baja-Induced-Patellofemoral Joint Osteoarthritis. Calcif Tissue Int 2022; 111:87-95. [PMID: 35179619 DOI: 10.1007/s00223-022-00958-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 02/04/2022] [Indexed: 11/28/2022]
Abstract
Several studies have revealed that PTH1-34 may possess the potential for treating osteoarthritis (OA) and osteoporosis. However, no study has yet determined whether PTH1-34 can be used for the treatment of patella baja-induced patellofemoral joint OA (PFJOA). Thus, this study sought to assess the efficacy of PTH1-34 for the treatment of PFJOA in a rat model. Patella baja was induced in 3-month-old female Sprague-Dawley (SD) rats by patellar ligament shortening (PLS), after which the rats were randomly divided into three groups (n = 12): Sham, PLS, and PTH group (PTH + PLS, PTH1-34, 30 µg/kg/d, 5 days per week for 10 weeks). Thereafter, radiographic imaging, macroscopic and microscopic analyses, immunohistochemistry, and microcomputed tomography (CT) analysis were performed. The appearance of PLS-induced PFJOA promoted obvious changes in the patellar position and structure in the PLS group, which were characterized by cartilage degeneration, subchondral bone microstructure deterioration, patella baja, and increasing patella length. However, these negative characteristics were markedly ameliorated by PTH1-34, which not only inhibited cartilage catabolism by decreasing MMP-13 and ADAMTS-4 but also enhanced anabolism by increasing Col-II and Aggrecan. Furthermore, the micro-CT results showed a marked improvement in subchondral bone microarchitecture. The findings presented herein demonstrated that early treatment with PTH1-34 could improve cartilage metabolism and subchondral bone health in this PFJOA model.
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Affiliation(s)
- Hongfei Zhang
- School of Public Health, North China University of Science and Technology, Bohai Road 21, Caofeidian Dis., Tangshan, 063210, Hebei, People's Republic of China
| | - Mingjian Bei
- Department of Orthopedic Surgery, Beijing Ji Shui Tan Hospital, Xinjiekoudongjie 31, Xicheng Dis., Beijing, 100035, People's Republic of China
| | - Zhiyuan Zheng
- Department of Orthopedic Surgery, The Affiliated Hospital of North China University of Science and Technology, Tangshan, Hebei, People's Republic of China
| | - Ning Liu
- Department of Orthopedic Surgery, The Affiliated Hospital of North China University of Science and Technology, Tangshan, Hebei, People's Republic of China
| | - Xuehui Cao
- Department of Orthopedic Surgery, The Affiliated Hospital of North China University of Science and Technology, Tangshan, Hebei, People's Republic of China
| | - Yaping Xiao
- Department of Orthopedic Surgery, The Affiliated Hospital of North China University of Science and Technology, Tangshan, Hebei, People's Republic of China
| | - Qiangqiang Lian
- School of Public Health, North China University of Science and Technology, Bohai Road 21, Caofeidian Dis., Tangshan, 063210, Hebei, People's Republic of China
| | - Yudan Wang
- School of Public Health, North China University of Science and Technology, Bohai Road 21, Caofeidian Dis., Tangshan, 063210, Hebei, People's Republic of China
| | - Xiaoli Hou
- School of Public Health, North China University of Science and Technology, Bohai Road 21, Caofeidian Dis., Tangshan, 063210, Hebei, People's Republic of China
| | - Faming Tian
- School of Public Health, North China University of Science and Technology, Bohai Road 21, Caofeidian Dis., Tangshan, 063210, Hebei, People's Republic of China.
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11
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Edama M, Otsuki T, Yokota H, Hirabayashi R, Sekine C, Maruyama S, Kageyama I. Morphological characteristics of the infrapatellar fat pad. Sci Rep 2022; 12:8923. [PMID: 35624138 PMCID: PMC9142527 DOI: 10.1038/s41598-022-12859-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/17/2022] [Indexed: 11/09/2022] Open
Abstract
The relationship between the morphological characteristics of the infrapatellar fat pad (IFP) and joint deformity has yet to be fully elucidated. Therefore, the purpose of this study was to clarify the morphological characteristics of the IFP and to identify the relationships between morphological characteristics of the IFP and degenerative grade of the articular surface of the patella. This investigation examined 41 legs from 25 Japanese cadavers. The IFP length, width, and volume were measured. It was categorized into three types: Type I, IFP proximal located on medial and lateral sides of the patella; Type II, the IFP proximal only located medially; and Type III, absence of the IFP proximal. Articular surfaces were graded as macroscopically intact or mildly altered (Grade I), moderately (Grade II), or severely (Grade III). Grade III was significantly more frequent than Grades I or II in Type III. IFP volume was significantly larger in Type I than in Types II or III. A negative correlation was found between the degenerative grade of the articular surface of the patella and IFP volume. It was suggested that a relationship between the degenerative grade of the articular surface of the patella and the IFP volume.
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Affiliation(s)
- Mutsuaki Edama
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-ku, Niigata, 950-3198, Japan. .,Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata, Japan.
| | - Tomofumi Otsuki
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-ku, Niigata, 950-3198, Japan
| | - Hirotake Yokota
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-ku, Niigata, 950-3198, Japan
| | - Ryo Hirabayashi
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-ku, Niigata, 950-3198, Japan
| | - Chie Sekine
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-ku, Niigata, 950-3198, Japan
| | - Sae Maruyama
- Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Shimami-cho 1398, Kita-ku, Niigata, 950-3198, Japan
| | - Ikuo Kageyama
- Department of Anatomy, School of Life Dentistry at Niigata, Nippon Dental University, Niigata, Japan
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12
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Ding D, Yan J, Feng G, Zhou Y, Ma L, Jin Q. Dihydroartemisinin attenuates osteoclast formation and bone resorption via inhibiting the NF‑κB, MAPK and NFATc1 signaling pathways and alleviates osteoarthritis. Int J Mol Med 2022; 49:4. [PMID: 34738623 PMCID: PMC8589459 DOI: 10.3892/ijmm.2021.5059] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/15/2021] [Indexed: 12/29/2022] Open
Abstract
Osteoarthritis (OA) is a chronic, progressive and degenerative disease, and its incidence is increasing on a yearly basis. However, the pathological mechanism of OA at each stage is still unclear. The present study aimed to explore the underlying mechanism of dihydroartemisinin (DHA) in terms of its ability to inhibit osteoclast activation, and to determine its effects on OA in rats. Bone marrow‑derived macrophages were isolated as osteoclast precursors. In the presence or absence of DHA, osteoclast formation was assessed by tartrate‑resistant acid phosphatase (TRAP) staining, cell viability was assessed by Cell Counting Kit‑8 assay, the presence of F‑actin rings was assessed by immunofluorescence, bone resorption was determined by bone slices, luciferase activities of NF‑κB and nuclear factor of activated T cell cytoplasmic 1 (NFATc1) were determined using luciferase assay kits, the protein levels of biomolecules associated with the NF‑κB, MAPK and NFATc1 signaling pathways were determined using western blotting, and the expression of genes involved in osteoclastogenesis were measured using reverse transcription‑quantitative PCR. A knee OA rat model was designed by destabilizing the medial meniscus (DMM). A total of 36 rats were assigned to three groups, namely the sham‑operated, DMM + vehicle and DMM + DHA groups, and the rats were administered DHA or DMSO. At 4 and 8 weeks postoperatively, the microarchitecture of the subchondral bone was analyzed using micro‑CT, the thickness of the cartilage layers was calculated using H&E staining, the extent of cartilage degeneration was scored using Safranin O‑Fast Green staining, TRAP‑stained osteoclasts were counted, and the levels of receptor activator of NF‑κB ligand (RANKL), C‑X‑C‑motif chemokine ligand 12 (CXCL12) and NFATc1 were measured using immunohistochemistry. DHA was found to inhibit osteoclast formation without cytotoxicity, and furthermore, it did not affect bone formation. In addition, DHA suppressed the expression levels of NF‑κB, MAPK, NFATc1 and genes involved in osteoclastogenesis. Progressive cartilage loss was observed at 8 weeks postoperatively. Subchondral bone remodeling was found to be dominated by bone resorption accompanied by increases in the levels of RANKL, CXCL12 and NFATc1 during the first 4 weeks. DHA was found to delay OA progression by inhibiting osteoclast formation and bone resorption during the early phase of OA. Taken together, the results of the present study demonstrated that the mechanism through which DHA could inhibit osteoclast activation may be associated with the NF‑κB, MAPK and NFATc1 signaling pathways, thereby indicating a potential novel strategy for OA treatment.
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Affiliation(s)
- Dong Ding
- Ningxia Medical University, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Jiangbo Yan
- Ningxia Medical University, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Gangning Feng
- Ningxia Medical University, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Yong Zhou
- Ningxia Medical University, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Long Ma
- Orthopedics Ward 3, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
| | - Qunhua Jin
- Ningxia Medical University, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
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13
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Shao LT, Gou Y, Fang JK, Hu YP, Lian QQ, Yang Z, Zhang YY, Wang YD, Tian FM, Zhang L. The Protective Effects of Parathyroid Hormone (1-34) on Cartilage and Subchondral Bone Through Down-Regulating JAK2/STAT3 and WNT5A/ROR2 in a Collagenase-Induced Osteoarthritis Mouse Model. Orthop Surg 2021; 13:1662-1672. [PMID: 34105258 PMCID: PMC8313171 DOI: 10.1111/os.13019] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 03/13/2021] [Accepted: 03/18/2021] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE To assess the effects of PTH (1-34) on bone and cartilage metabolism in a collagenase-induced mouse model of osteoarthritis (OA) and examine whether PTH (1-34) affects the expression of JAK2/STAT3 and WNT5A/ROR2 in this process. METHODS Eighteen 12-week-old male C57Bl/6 mice were randomly assigned into three groups as follows: sham group (Group A), the collagenase + saline injection group (Group B), and the collagenase + PTH (1-34) treatment group (Group C). Collagenase was injected (intra-articular) into the knee joint of Group B and C. The PTH (1-34)-treatment was started at 6 weeks after the operation and lasted for 6 weeks. Cartilage pathology was evaluated by gross visual, histological, and immunohistochemical assessments. Subchondral bone was evaluated by microcomputed tomography (micro-CT) and immunohistochemical analyses. RESULTS The OARSI macroscopic and microscopic scores of Group B were higher than those of Group A (P = 0.026; P = 0.002, respectively). Group C showed statistically significant differences in macroscopic and microscopic scores from Group B (P = 0.041; P = 0.008, respectively). The results showed that the Col-II and AGG expression levels in the cartilage tissue were significantly lower in Group B than Group A (P < 0.001; P = 0.008, respectively). The Col-II and AGG expression levels were significantly higher in Group C than Group B (P = 0.009; P = 0.014, respectively). MMP-13, ADAMTS-4, Caspase-3, P53, and Bax expression levels were significantly higher in Group B than the Group A (P < 0.001; P < 0.001; P = 0.04; P < 0.001; P = 0.005, respectively); however, the cartilage tissue in Group C showed significantly less ADAMTS-4, MMP-13, Caspase-3, P53, and Bax expression than Group B (P < 0.001, P < 0.001, P = 0.044; P = 0.002; P = 0.005, respectively). Over-expressed JAK2/STAT3 and WNT5A/ROR2 were observed in both cartilage and subchondral bone in this model; however, these changes were prevented by PTH (1-34) treatment. These parameters (bone mineral density, bone volume ratio, trabecular bone pattern factor, and structure model index) of micro-CT indicated subchondral bone loss and architecture changes in Group B, but improvements in these parameters in Group C. CONCLUSIONS PTH (1-34) exhibits protective effects on both cartilage and subchondral bone in a collagenase-induced OA mouse model, and it may be involved in down-regulating the expression of JAK2/STAT3 and WNT5A/ROR2.
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Affiliation(s)
- Li-Tao Shao
- Department of Orthopedic Surgery, Hebei Medical University, Shijiazhuang, China.,Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Yu Gou
- Department of Orthopedic Surgery, Tianjin Hospital, Tianjin University, Tianjin, China
| | - Jia-Kang Fang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Yun-Peng Hu
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Qiang-Qiang Lian
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Zhou Yang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Yu-Ying Zhang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Yu-Dan Wang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Fa-Ming Tian
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Liu Zhang
- Department of Orthopedic Surgery, Hebei Medical University, Shijiazhuang, China.,Department of Orthopedic Surgery, Emergency General Hospital, Beijing, China
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14
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Schulze-Tanzil G. Experimental Therapeutics for the Treatment of Osteoarthritis. J Exp Pharmacol 2021; 13:101-125. [PMID: 33603501 PMCID: PMC7887204 DOI: 10.2147/jep.s237479] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 01/07/2021] [Indexed: 12/18/2022] Open
Abstract
Osteoarthritis (OA) therapy remains a large challenge since no causative treatment options are so far available. Despite some main pathways contributing to OA are identified its pathogenesis is still rudimentary understood. A plethora of therapeutically promising agents are currently tested in experimental OA research to find an opportunity to reverse OA-associated joint damage and prevent its progression. Hence, this review aims to summarize novelly emerging experimental approaches for OA. Due to the diversity of strategies shown only main aspects could be summarized here including herbal medicines, nanoparticular compounds, growth factors, hormones, antibody-, cell- and extracellular vesicle (EV)-based approaches, optimized tools for joint viscosupplementation, genetic regulators such as si- or miRNAs and promising combinations. An abundant multitude of compounds obtained from plants, environmental, autologous or synthetic sources have been identified with anabolic, anti-inflammatory, -catabolic and anti-apoptotic properties. Some ubiquitous signaling pathways such as wingless and Integration site-1 (Wnt), Sirtuin, Toll-like receptor (TLR), mammalian target of rapamycin (mTOR), Nuclear Factor (NF)-κB and complement are involved in OA and addressed by them. Hyaluronan (HA) provided benefit in OA since many decades, and novel HA formulations have been developed now with higher HA content and long-term stability achieved by cross-linking suitable to be combined with other agents such as components from herbals or chemokines to attract regenerative cells. pH- or inflammation-sensitive nanoparticular compounds could serve as versatile slow-release systems of active compounds, for example, miRNAs. Some light has been brought into the intimate regulatory network of small RNAs in the pathogenesis of OA which might be a novel avenue for OA therapy in future. Attraction of autologous regenerative cells by chemokines and exosome-based treatment strategies could also innovate OA therapy.
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Affiliation(s)
- Gundula Schulze-Tanzil
- Department of Anatomy and Cell Biology, Paracelsus Medical University, Nuremberg, Bavaria, Germany
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15
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Lin W, Kang H, Dai Y, Niu Y, Yang G, Niu J, Li M, Wang F. Early patellofemoral articular cartilage degeneration in a rat model of patellar instability is associated with activation of the NF-κB signaling pathway. BMC Musculoskelet Disord 2021; 22:90. [PMID: 33461534 PMCID: PMC7814603 DOI: 10.1186/s12891-021-03965-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 01/11/2021] [Indexed: 01/11/2023] Open
Abstract
Background Patellar instability (PI) often increases the possibility of lateral patellar dislocation and early osteoarthritis. The molecular mechanism of early articular cartilage degeneration during patellofemoral osteoarthritis (PFOA) still requires further investigation. However, it is known that the NF-κB signaling pathway plays an important role in articular cartilage degeneration. The aim of this study was to investigate the relationship between the NF-κB signaling pathway and patellofemoral joint cartilage degeneration. Methods We established a rat model of PI-induced PFOA. Female 4-week-old Sprague-Dawley rats (n = 120) were randomly divided into two groups: the PI (n = 60) and control group (n = 60). The distal femurs of the PI and control group were isolated and compared 4, 8, and 12 weeks after surgery. The morphological structure of the trochlear cartilage and subchondral bone were evaluated by micro-computed tomography and histology. The expression of NF-κB, matrix metalloproteinase (MMP)-13, collagen X, and TNF-ɑ were evaluated by immunohistochemistry and quantitative polymerase chain reaction. Results In the PI group, subchondral bone loss and cartilage degeneration were found 4 weeks after surgery. Compared with the control group, the protein and mRNA expression of NF-κB and TNF-ɑ were significantly increased 4, 8, and 12 weeks after surgery in the PI group. In addition, the markers of cartilage degeneration MMP-13 and collagen X were more highly expressed in the PI group compared with the control group at different time points after surgery. Conclusions This study has demonstrated that early patellofemoral joint cartilage degeneration can be caused by PI in growing rats, accompanied by significant subchondral bone loss and cartilage degeneration. In addition, the degeneration of articular cartilage may be associated with the activation of the NF-κB signaling pathway and can deteriorate with time as a result of PI.
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Affiliation(s)
- Wei Lin
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, 050051, Shijiazhuang, Hebei, China
| | - Huijun Kang
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, 050051, Shijiazhuang, Hebei, China
| | - Yike Dai
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, 050051, Shijiazhuang, Hebei, China
| | - Yingzhen Niu
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, 050051, Shijiazhuang, Hebei, China
| | - Guangmin Yang
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, 050051, Shijiazhuang, Hebei, China
| | - Jinghui Niu
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, 050051, Shijiazhuang, Hebei, China
| | - Ming Li
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, 050051, Shijiazhuang, Hebei, China
| | - Fei Wang
- Department of Orthopedic Surgery, Third Hospital of Hebei Medical University, No. 139 Ziqiang Road, 050051, Shijiazhuang, Hebei, China.
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16
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Shao LT, Gou Y, Fang JK, Hu YP, Lian QQ, Zhang YY, Wang YD, Tian FM, Zhang L. Parathyroid hormone (1-34) ameliorates cartilage degeneration and subchondral bone deterioration in collagenase-induced osteoarthritis model in mice. Bone Joint Res 2020; 9:675-688. [PMID: 33101657 PMCID: PMC7563035 DOI: 10.1302/2046-3758.910.bjr-2020-0018.r1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Aims Parathyroid hormone (PTH) (1-34) exhibits potential in preventing degeneration in both cartilage and subchondral bone in osteoarthritis (OA) development. We assessed the effects of PTH (1-34) at different concentrations on bone and cartilage metabolism in a collagenase-induced mouse model of OA and examined whether PTH (1-34) affects the JAK2/STAT3 signalling pathway in this process. Methods Collagenase-induced OA was established in C57Bl/6 mice. Therapy with PTH (1-34) (10 μg/kg/day or 40 μg/kg/day) was initiated immediately after surgery and continued for six weeks. Cartilage pathology was evaluated by gross visual, histology, and immunohistochemical assessments. Cell apoptosis was analyzed by TUNEL staining. Microcomputed tomography (micro-CT) was used to evaluate the bone mass and the microarchitecture in subchondral bone. Results Enhanced matrix catabolism, increased apoptosis of chondrocytes in cartilage, and overexpressed JAK2/STAT3 and p-JAK2/p-STAT3 were observed in cartilage in this model. All of these changes were prevented by PTH (1-34) treatment, with no significant difference between the low-dose and high-dose groups. Micro-CT analysis indicated that bone mineral density (BMD), bone volume/trabecular volume (BV/TV), and trabecular thickness (Tb.Th) levels were significantly lower in the OA group than those in the Sham, PTH 10 μg, and PTH 40 μg groups, but these parameters were significantly higher in the PTH 40 μg group than in the PTH 10 μg group. Conclusion Intermittent administration of PTH (1-34) exhibits protective effects on both cartilage and subchondral bone in a dose-dependent manner on the latter in a collagenase-induced OA mouse model, which may be involved in regulating the JAK2/STAT3 signalling pathway. Cite this article: Bone Joint Res 2020;9(10):675–688.
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Affiliation(s)
- Li-Tao Shao
- Department of Orthopedic Surgery, Hebei Medical University, Shijiazhuang, China.,Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Yu Gou
- Department of Orthopaedic Surgery, Tianjin Hospital, Tianjin University, Tianjin, China
| | - Jia-Kang Fang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Yun-Peng Hu
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Qiang-Qiang Lian
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Yu-Ying Zhang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Yu-Dan Wang
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Fa-Ming Tian
- Medical Research Center, Hebei Key Laboratory for Organ Fibrosis, North China University of Science and Technology, Tangshan, China
| | - Liu Zhang
- Department of Orthopedic Surgery, Hebei Medical University, Shijiazhuang, China.,Department of Orthopedic Surgery, Emergency General Hospital, Beijing, China
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17
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Pontoh LAP, Putra A, Dilogo IH, Efar TS. Characteristics of coexisting patellofemoral joint osteoarthritis and tibiofemoral joint osteoarthritis in an Indonesian population: A cross-sectional study at a tertiary teaching hospital. INTERNATIONAL JOURNAL OF SURGERY OPEN 2019. [DOI: 10.1016/j.ijso.2019.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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