Table 1.

Effect of HW-Pm on iNOS, Arg-1 and FIZZ mRNA expression in RAW 264.7 macrophages.

	M1 Subset	M2 Subset
	iNOS	Arg-1	FIZZ
Control	0.44 ± 0.04 c	0.01	- (nd)
LPS + IFN-γ	5.04 ± 0.59 ab	0.03	-
HW-Pm (500 µg/mL)	5.98 ± 0.51 a	0.01	-
HW-Pm (100 µg/mL)	4.17 ± 0.54 b	0.03	-

The results are expressed as the ratios of quantity (ng/mL) between HGPRT gene and the iNOS, Arg-1 and FIZZ genes. LPS (100 ng/mL) and IFN-γ (5 ng/mL) were used as positive controls for stimulation. Means ± SD without the same letter are significantly different at the 5% level according to a one-way ANOVA test followed by a Tukey test (n = 3). (nd): not detected.