目的观察甲基硝基亚硝基胍（Ｎ－ｍｅｔｈｙｌ－Ｎ′－ｎｉｔｏ－Ｎ－ｎｉｔｒｏｓｏｇｕａｎｉｄｉｎ，ＭＮＮＧ）对裸鼠异种移植人胚胃粘膜的影响。方法用ＭＮＮＧ直接诱导移植于裸鼠体内的人胚胃粘膜，ＨＥ和ＡＢ／ＰＡＳ染色观测胃粘膜组织形......

Aim Aralia elata （Miq.） Seem is a medicinal plant with a variety of biological activities. Several trier- pene saponins ex......

OBJECTIVE To investigate the inhibitory effect of scutellarin on the self-renewal and differentiation of HT-29 cells-der......