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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Hyaluronic acid has chondroprotective and joint-preserving effects on LPS-induced synovitis in horses

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Neuenschwander, Henrique M. [1] ; Moreira, Juliana J. [1] ; Vendruscolo, Cynthia P. [1] ; Fulber, Joice [1] ; Seidel, Sarah R. T. [1] ; Michelacci, Yara M. [2] ; Baccarin, Raquel Y. A. [1]
Total Authors: 7
[1] Univ Sao Paulo, Fac Med Vet & Zootecnia, Dept Clin Med, Av Prof Dr Orlando Marques de Paiva 87, BR-05508270 Sao Paulo, SP - Brazil
[2] Univ Fed Sao Paulo, Escola Paulista Med, Dept Bioquim, BR-04044020 Sao Paulo, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Journal of Veterinary Science; v. 20, n. 6 NOV 2019.
Web of Science Citations: 0

The intra-articular use of hyaluronic acid (HA) for the treatment of synovitis and osteoarthritis is still controversial. As a consequence, corticosteroids remain the most frequently employed therapeutic agents, despite their potential systemic and local deleterious effects. This study examined the anti-inflammatory, antioxidant, and chondroprotective activities of low and high molecular weight hyaluronic acid (LMW-HA and HMW-HA) on lipopolysaccharide (LPS)-induced synovitis in horses compared to triamcinolone acetonide (TA). LPS was injected in the metacarpophalangeal joints, which were treated intra-articularly with either TA (as control) or LMW-HA or HMW-HA. Joint clinical evaluation and synovial fluid (SF) analysis were performed at 0, 8, 24, and 48 h. The white blood cell counts (WBC), prostaglandin E2 (PGE2), interleukin (IL)-1, IL-6, IL-10, tumor necrosis factor-alpha, chondroitin sulfate (CS) and HA concentrations, oxidative burst, and HA molecular weights were measured. TA reduced the lameness, swelling, and PGE2 release but increased the SF CS concentrations enormously at 24 h and 48 h, and decreased the SF HA modal molecular weight. These results indicate the breakdown of articular cartilage aggrecan and SF HA. In contrast, LMW-HA and HMW-HA were less effective in reducing the inflammation symptoms, but preserved the joints because only a modest increase in CS occurred at 24 h, decreasing at 48 h, and the SF HA was maintained. The HA-treatment also had anti-inflammatory actions, and LMW-HA was the most effective in reducing the release of cytokine. In summary, the HA treatment inhibited efficiently the digestion of cartilage proteoglycans and SF HA breakdown. (AU)

FAPESP's process: 10/16022-5 - Lysosomal enzymes, metalloproteinases and proteoglycans in Diabetes mellitus
Grantee:Yara Maria Corrêa da Silva Michelacci
Support type: Regular Research Grants
FAPESP's process: 14/13065-6 - A comprehensive study on osteoarthritis and osteochondrosis: characterization and biomarkers expression of the synovial membrane and synovial fluid cytokine profile
Grantee:Raquel Yvonne Arantes Baccarin
Support type: Regular Research Grants
FAPESP's process: 13/07109-8 - Expression and activity of lysosomal enzymes in cultured cells exposed to conditions that mimic diabetes
Grantee:Yara Maria Corrêa da Silva Michelacci
Support type: Regular Research Grants