N,N'-Dimethylthiourea (DMTU) 是从黑蒜中分离出来的,是口服有效的羟基自由基 (•OH) 的清除剂,通过活化的中性粒细胞在体外阻止 •OH 的产生。N,N'-Dimethylthiourea 通过发挥抗氧化作用,包括 •OH 清除和抗炎作用,防止水浸限制应激 (WIRS) 诱导的大鼠胃粘膜损伤。
N,N'-Dimethylthiourea (DMTU; 1, 2.5, or 5 mmol/kg; orally) administered at 0.5 h before the onset of WIRS reduces the severity of gastric mucosal lesions with attenuation of the changes in the levels of gastric mucosal MPO, pro-inflammatory cytokines, LPO, NOx, nonprotein SH, and vitamin C and gastric adherent mucus found at 3 h after the onset of WIRS in a dose-dependent manner in Male Wistar rats aged 6 weeks.