Figure 1From: Plasma and synovial fluid microRNAs as potential biomarkers of rheumatoid arthritis and osteoarthritisThe presence of miRNAs in plasma and synovial fluid and their stability for storage. (Upper) Plasma and synovial fluid of RA were stored in --20°C until indicated days, thawed and analyzed for the concentrations of the indicated miRNAs. (Lower) The concentrations of indicated miRNAs in plasma and synovial fluid of RA after indicated freeze-thaw cycles from --20°C to 4°C. Significant differences compared to the concentration after the first freeze-thaw are indicated by * = P < 0.05, ** = P < 0.01. Results represent three independent experiments.Back to article page