Measurement of Nitric Oxide Production and Cell Viability

YL Young-Sun Lee
DG Deepak Prasad Gupta
SP Sung Hee Park
HY Hyun-Jeong Yang
GS Gyun Jee Song
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Cell culture medium was harvested after treatment with or without LPS (100 ng/ml) in the presence or absence of DMF. NO production was analyzed by the colorimetric Griess assay to determine the concentration of nitrite, a stable NO metabolite. The absorbance was detected at 540 nm by a microplate reader. Cell viability was determined by the MTT [3-(4, 5-dimethylthiazol-2-yl)-2, 5 diphenyl tetrazolium bromide] assay, and the sample absorbance was detected at 570 nm.

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