Serum Keratan Sulphate in Arabian Horses as a Cartilage Degradation Biomarker: The Effect of Daily Training Program

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Document Type : Original Article

Authors

1 Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Suez Canal University, 4.5 Ring Road, Ismailia, 41522, Egypt.

2 Department of Surgery, Anesthesiology and Radiology, Faculty of Veterinary Medicine, Suez Canal University

Abstract

Keratan sulfate is a glycosaminoglycan found mostly in hyaline cartilage, and it is a potential marker of hyaline cartilage catabolism. Keratan sulfate has been recognized as a marker of early cartilage injury because of significant increases in concentration before macroscopic damage occurs. The objective of this study was to assess the Keratan sulfate concentration in the serum of Arabian horses in the Equestrian Club, King Abdulaziz University, subjected to a training program, and correlate it to the resting baseline values. Serum Keratan sulphate concentration was measured in twelve Arabian horses (7 females and 5 males) with a mean ± SD age of 26 ± 2 months subjected to a training program. Keratan sulphate concentration was measured using an inhibition enzyme-linked immunosorbent assay (ELISA) using monoclonal antibody (mAb) 1/20/5-D-4. The results showed significantly higher values of keratan sulfate compared to the baseline values before training. Levels of serum keratan sulphate showed a substantial rise after 15 and 30 minutes of the training program. However, there was a notable reduction in the concentration of keratan sulphate discovered 60 minutes after exercise. This study showed transiently higher keratan sulphate levels in the serum of Arabian horses, which may be indicative of increased metabolic activities in joint cartilage due to joint overloading

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Suez Canal Veterinary Medical Journal. SCVMJ

Articles in Press, Accepted Manuscript
Available Online from 11 March 2025

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