Whole-body vibration of mice induces progressive degeneration of intervertebral discs associated with increased expression of Il-1β and multiple matrix degrading enzymes

Autor: Cynthia Yeung, Matthew A. Veras, Gurkeet Lalli, S. Jeffrey Dixon, Priya Patel, Kristyn M. Leitch, Matthew R. McCann, David W. Holdsworth, Cheryle A. Séguin
Rok vydání: 2016
Předmět:
Male
MMP3
medicine.medical_specialty
Pathology
Osteoporosis
Interleukin-1beta
Biomedical Engineering
Mice
Inbred Strains
Degeneration (medical)
Intervertebral Disc Degeneration
Disc degeneration
Vibration
Whole-body vibration
03 medical and health sciences
Mice
Random Allocation
0302 clinical medicine
Rheumatology
Weight loss
Reference Values
Internal medicine
Medicine and Health Sciences
medicine
Back pain
Whole body vibration
Animals
Orthopedics and Sports Medicine
Bone
Inflammation
030203 arthritis & rheumatology
business.industry
Biopsy
Needle
Intervertebral disc
X-Ray Microtomography
medicine.disease
Immunohistochemistry
Spine
Matrix Metalloproteinases
Disease Models
Animal
Endocrinology
medicine.anatomical_structure
Gene Expression Regulation
Joint pain
Disease Progression
medicine.symptom
business
030217 neurology & neurosurgery
Zdroj: Bone and Joint Institute
ISSN: 1522-9653
Popis: © 2017 Osteoarthritis Research Society International Objective Whole-body vibration (WBV) is a popular fitness trend based on claims of increased muscle mass, weight loss and reduced joint pain. Following its original implementation as a treatment to increase bone mass in patients with osteoporosis, WBV has been incorporated into clinical practice for musculoskeletal disorders, including back pain. However, our recent studies revealed damaging effects of WBV on joint health in a murine model. In this report, we examined potential mechanisms underlying disc degeneration following exposure of mice to WBV. Methods Ten-week-old male mice were exposed to WBV (45 Hz, 0.3 g peak acceleration, 30 min/day, 5 days/week) for 4 weeks, 8 weeks, or 4 weeks WBV followed by 4 weeks recovery. Micro-computed tomography (micro-CT), histological, and gene expression analyses were used to assess the effects of WBV on spinal tissues. Results Exposure of mice to 4 or 8 weeks of WBV did not alter total body composition or induce significant changes in vertebral bone density. On the other hand, WBV-induced intervertebral disc (IVD) degeneration, associated with decreased disc height and degenerative changes in the annulus fibrosus (AF) that did not recover within 4 weeks after cessation of WBV. Gene expression analysis showed that WBV for 8 weeks induced expression of Mmp3, Mmp13, and Adamts5 in IVD tissues, changes preceded by increased expression of Il-1β. Conclusions Progressive IVD degeneration induced by WBV was associated with increased expression of Il-1β within the IVD that preceded Mmp and Adamts gene induction. Moreover, WBV-induced IVD degeneration is not reversed following cessation of vibration.
Databáze: OpenAIRE
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