Table 1.

Biomarkers associated with oxidative stress in the esophagus

Group	ROS (fluoresence/min/mg protein)	TBARS (nmol/mg protein)
Normal rats	2748 ± 659**	7.5 ± 0.4**
RE rats
Veh	29600 ± 8517	14.0 ± 0.8
RR125	9550 ± 5129*	8.6 ± 0.1**
RR250	3408 ± 661**	6.3 ± 0.4**

N, normal rats; Veh, RE control rats; RR125, Rhei Rhizoma 125 mg/kg body weight-administrated and RE rats; RR250, Rhei Rhizoma 250 mg/kg body weight-administrated and RE rats. Data are the mean ± SD

Significance: *p < 0.01, **p < 0.001 vs. RE control rat values. n = 6 in each group