highly significantP < 0.01
There was either a significant decrease in the nitrite production of group treated with 250 μ g/mL AHT ( P < 0.05) or very and highly significant decrease of groups treated, respectively, with 500 and 1,000 μ g/mL of AHT when compared with the LPS-alone group ( P < 0.01 or P < 0.001).