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采用０．２％的人参汤剂饲喂生理性肾虚的小鼠，并用３Ｈ－甲基掺入法测定了正常和生理性肾虚小鼠肝ＤＮＡ甲基化酶的活力。结果证明：０．２％的人参汤剂能明显提高生理性肾虚小鼠肝细胞ＤＮＡ甲基化酶的活力，具有延缓衰老的作用，为从分子生物学的角度探讨人参延缓衰老的机理提供了客观依据。
0.2% ginseng decoction was used to feed the mice with physiological kidney deficiency, and the 3H-methyl incorporation assay was used to determine the liver DNA methylase activity in normal and physiological kidney deficiency mice. The results showed that: 0.2% of Ginseng Decoction can significantly increase the activity of DNA methylation enzyme in liver cells of mice with physiological kidney deficiency, and has the effect of delaying aging, providing a mechanism for the anti-aging mechanism of ginseng from the perspective of molecular biology. Objective basis.