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Pulsed electromagnetic field ameliorates cartilage degeneration by inhibiting mitogen-activated protein kinases in a rat model of osteoarthritis.

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机构: [1]Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, Hunan, People's Republic of China [2]Clinical Medical College of Acupuncture Moxibustion and Rehabilitation, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, People's Republic of China [3]Department of Rehabilitation, West China Hospital, Sichuan University, Chengdu, Sichuan, People's Republic of China
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关键词: Osteoarthritis Pulsed electromagnetic field Mitogen-activated protein kinases

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We assessed the effects of pulsed electromagnetic field (PEMF) on cartilage degeneration, and expression of mitogen-activated protein kinases (MAPKs) and matrix metalloproteinases (MMPs), in an experimental rat model of osteoarthritis induced by anterior cruciate ligament transection (ACLT). Experimental. University animal laboratory. 30 male Sprague-Dawley rats. We performed histological examination, enzyme-linked immunosorbent assay, quantitative real-time polymerase chain reaction, to assess cartilage degeneration, urine C-terminal cross-linking telopeptide of type II collagen (CTX-II), and mRNA expression of extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (c-Jun), p38, and MMPs. Urinary CTX-II in the PEMF group was significantly lower than in the ACLT group at 9 and 13 weeks. Mankin scores in the PEMF group significantly lower than that in the ACLT group (P < 0.01). mRNA expression of ERK1, c-Jun, p38, MMP-13 and MMP-3 was significantly higher in the ACLT group than in the Sham group, while that with the sole exception of MMP-3 in the PEMF group was significantly lower than in the ACLT group. PEMF may regulate the catabolic factor, MMP13, and inhibit cartilage destruction, at least partially, by inhibiting MAPKs signaling pathway. Copyright © 2016 Elsevier Ltd. All rights reserved.

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出版当年[2016]版:
大类 | 4 区 医学
小类 | 3 区 康复医学 4 区 运动科学
最新[2025]版:
大类 | 3 区 医学
小类 | 2 区 康复医学 3 区 运动科学
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第一作者机构: [1]Department of Rehabilitation, The First Affiliated Hospital of University of South China, Hengyang, Hunan, People's Republic of China
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