Antirheumatoid Arthritis Activities and Chemical Compositions of Phenolic Compounds-Rich Fraction from Urtica atrichocaulis, an Endemic Plant to China

Table 2

Effect of phenolic compounds-rich fraction from Urtica atrichocaulis (TFUA) on rats paw edema induced by carrageenin.

Group	Dose (mg/kg)	Paw swell (mm)
		2 h	4 h	6 h
Vehicle	—	4.72  ±  0.88	5.15  ±  1.06	4.93  ±  0.92
Indometacin	30	3.78  ±  0.93*	3.22  ±  0.73**	2.37  ±  0.95**
TFUA	50	4.42  ±  1.26	4.08  ±  0.95*	3.69  ±  0.71*
	150	4.38  ±  0.65	3.64  ±  0.78**	3.20  ±  0.83**

Values are expressed as mean ± SD. N  =  10. *P  <  0.05, **P  <  0.01 compared with vehicle control.