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The relationship between synovial fluid VEGF and serum leptin with ultrasonographic findings in knee osteoarthritis
Author(s) -
Kim HaeRim,
Lee JungHwa,
Kim KyoungWoon,
Kim BoMi,
Lee SangHeon
Publication year - 2016
Publication title -
international journal of rheumatic diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.795
H-Index - 41
eISSN - 1756-185X
pISSN - 1756-1841
DOI - 10.1111/1756-185x.12486
Subject(s) - medicine , osteoarthritis , synovial fluid , leptin , effusion , resistin , cartilage oligomeric matrix protein , vascular endothelial growth factor , gastroenterology , visual analogue scale , pathology , vegf receptors , surgery , adipokine , obesity , alternative medicine
Aim This study aimed to determine synovial fluid and serum biomarkers which could accord with radiological and ultrasonographic findings in knee osteoarthritis. Methods Thirty‐four patients with knee osteoarthritis were detected with joint effusion by clinical examination. Both knee joints were examined using plain radiographs and ultrasonography. Questions were obtained for visual analog scale ( VAS ), Western Ontario McMaster Universities Osteoarthritis Index and Health Assessment Questionnaire ( HAQ ). Synovial fluid ( SF ) and serum levels of vascular endothelial growth factor ( VEGF ), matrix metalloproteinase ( MMP )‐13, leptin, resistin and cartilage oligomeric matrix protein ( COMP ) were measured using enzyme‐linked immunosorbent assay. Results Synovial fluid VEGF level was positively correlated with Kellgren–Lawrence ( KL ) grades and it was higher in patients with KL grade 4 than those with KL grade 2. SF VEGF correlated with ultrasonographic findings, such as the length of medial osteophytes. The amount of effusion was positively correlated with SF resistin. Serum leptin level had positive correlation with HAQ and the length of medial osteophytes. MMP ‐13 or COMP levels were not correlated with radiographic or ultrasonographic findings. Conclusion Synovial fluid VEGF level was correlated with radiographic grading, ultrasonographic findings and functional statues in knee osteoarthritis, and serum leptin level also correlated with the ultrasonographic findings and functional status of knee osteoarthritis.