Format

Send to

Choose Destination
Sci Rep. 2019 Mar 7;9(1):3893. doi: 10.1038/s41598-019-40601-x.

Protective effect of prebiotic and exercise intervention on knee health in a rat model of diet-induced obesity.

Author information

1
Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada. jaquelinelourdes.rio@ucalgary.ca.
2
McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, Canada. jaquelinelourdes.rio@ucalgary.ca.
3
Human Performance Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, AB, Canada.
4
Department of Kinesiology & Physical Education, University of Lethbridge, Lethbridge, AB, Canada.
5
McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, Canada.
6
Department of Biochemistry and Molecular Biology, University of Calgary, Calgary, AB, Canada.

Abstract

Obesity, and associated metabolic syndrome, have been identified as primary risk factors for the development of knee osteoarthritis (OA), representing nearly 60% of the OA patient population. In this study, we sought to determine the effects of prebiotic fibre supplementation, aerobic exercise, and the combination of the two interventions, on the development of metabolic knee osteoarthritis in a high-fat/high-sucrose (HFS) diet-induced rat model of obesity. Twelve-week-old male Sprague-Dawley rats were randomized into five groups: a non-exercising control group fed a standard chow diet, a non-exercising group fed a HFS diet, a non-exercising group fed a HFS diet combined with prebiotic fibre supplement, an exercise group fed a HFS diet, and an exercise group fed a HFS diet combined with prebiotic fibre supplement. Outcome measures included knee joint damage, percent body fat, insulin sensitivity, serum lipid profile, serum endotoxin, serum and synovial fluid cytokines and adipokines, and cecal microbiota. Prebiotic fibre supplementation, aerobic exercise, and the combination of the two interventions completely prevented knee joint damage that is otherwise observed in this rat model of obesity. Prevention of knee damage was associated with a normalization of insulin resistance, leptin levels, dyslipidemia, gut microbiota, and endotoxemia in the HFS-fed rats.

Supplemental Content

Full text links

Icon for Nature Publishing Group Icon for PubMed Central
Loading ...
Support Center