2. Anti-inflammatory activity by NO inhibitory
effect and cytotoxicity test in RAW264.7 cells
The ethanolic extract of Ya-Ha-Rak (HR) remedy
exhibited the most potent inhibitory activity in this
test (IC50= 40.36µg/ml) but it exhibit NO
production inhibitory effect lower than
Indomethacin (IC50= 20.32µg/ml). Moreover, the
ethanolic extract of Clerodendrum petasites,
Harrisonia perforata, Tiliacora triandra, Capparis
micracantha showed moderate inhibition activity
(IC50 100µg/ml)
(Figure 2). The cytotoxicity test, all of extracts
showed anti-inflammatory and no toxicity in RAW
264.7 cells. There are showed survival more than
80% in Table1.