Table 2.
Saline-Con | Saline-MB | LPS-Con | LPS-MB | |
---|---|---|---|---|
CD14 | 1.07±0.16a | 0.97±0.06a | 1.69±0.12b | 2.97±0.35c |
IL-1β | 1.02±0.10a | 0.52±0.16b | 113.7±35.3c | 74.8±6.5d |
TNF-α | 1.00±0.04a | 0.54±0.20b | 6.10±1.17c | 4.84±0.59c |
iNOS | 1.02±0.10a | 1.03±0.20a | 518.4±139.1b | 551.7±91.6b |
Arg1 | 1.01±0.10a | 0.91±0.04a | 0.32±0.01b | 0.54±0.08c |
IL-10 | 1.03±0.11a | 2.14±0.65a | 7.28±0.46b | 17.85±4.05c |
BV-2 microglia were cultured in vitro and treated with saline or LPS (100 ng/mL) for 1 h. After 1 h, control (double deionized water) or methylene blue (MB; 4.5 μM) was added to the culture media. After 24 h, messenger ribonucleic acid (mRNA) was isolated and gene expression of CD14, interleukin (IL)-1β, tumor necrosis factor (TNF)-α, inducible nitric oxide synthase (iNOS), arginase (Arg1), and IL-10 was determined (two independent experiments; n=3 per experiment). Values represent the mean±standard error of the mean. Means with different letters (a,b,c) are significantly different (p<0.05) from each other. Means with underlined letters (d) tend to be different (p=0.1) from lipopolysaccharide (LPS)-vehicle control (Con).