A blinded, placebo-controlled study on the clinical effects of vitamin E supplementation in dogs with osteoarthritis

Gordon, Casey L., Reeves, Samantha J., Burchell, Richard K., Thomson, Craig, Gal, Arnon, Lopez-Villalobos, Nicolas, Webster, Natalie, lister, Kimberly, and Mitchel, Richard (2023) A blinded, placebo-controlled study on the clinical effects of vitamin E supplementation in dogs with osteoarthritis. Journal of Veterinary Internal Medicine, 37. pp. 1839-1847.

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Abstract

Background: Vitamin E has a positive effect in the management of osteoarthritis in humans, and in a previous study of dogs. It has been suggested to decrease C-reactive protein concentrations and liver enzyme activities in humans and animals.

Objective: To assess the effect of vitamin E supplementation on lameness, pain, pain medication requirement, clinical pathology variables, and quality of life in large-breed dogs with naturally occurring osteoarthritis.

Animals: Fifty-seven client-owned dogs with naturally occurring osteoarthritis.

Methods: Dogs received either vitamin E or placebo for 90 days in a randomized, placebo-controlled, double-blinded, prospective clinical trial. Clinical lameness scores, pain medication requirements, and owner questionnaires were used to assess response to treatment every 30 days. Blood samples were collected at enrollment and at the end of the study period.

Results: Vitamin E administration did not improve pain, lameness, or quality of life as assessed by owners and veterinarians. Vitamin E supplementation did not decrease the requirement for rescue pain relief. No changes in clinical pathology variables were observed after 90 days of vitamin E supplementation. Body weight was negatively associated with the lameness scores and requirement for rescue pain relief.

Conclusion: Vitamin E supplementation did not have any observable positive effects in dogs with naturally occurring osteoarthritis.

Item ID: 83006
Item Type: Article (Research - C1)
ISSN: 1939-1676
Keywords: arthritis, inflammation, lameness, nutraceutical
Copyright Information: © 2023 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals LLC. on behalf of the American College of Veterinary Internal Medicine. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium,provided the original work is properly cited.
Date Deposited: 21 Jun 2024 04:26
FoR Codes: 30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3009 Veterinary sciences > 300907 Veterinary medicine (excl. urology) @ 100%
SEO Codes: 24 MANUFACTURING > 2416 Veterinary pharmaceutical products > 241603 Veterinary pharmaceutical treatments @ 100%
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