Fig. 3
From: The effects of the molecular weights of hyaluronic acid on the immune responses
Effects of different molecular weights and concentrations of HyA on NO production in LPS-unstimulated and LPS-stimulated macrophages. LMW-10: low molecular weight of HyA (10 kDa); MMW-100: medium molecular weight of HyA (100 kDa); MMW-500: medium molecular weight of HyA (500 kDa); HMW-1,500: high molecular weight of HyA (1,500 kDa). Values are the mean ± S.D. of 9 experiments for n = 4. The statistical significance levels of the differences were set to *p < 0.05, **p < 0.01, and ***p < 0.001, HyA vs. LPS