为了解决这一问题，我们使用一种体外测定系统来评估釉质发生的分子机制。
To address this question, we developed an in vitro assay system to evaluate the molecular mechanism of amelogenesis.
采用转基因酵母检测系统测定11种原二醇类人参皂苷、4种原三醇类人参皂苷、红景天苷、芦丁和异槲皮素的体外雌激素活性。
The in vitro estrogenic activities of 11 protopanaxadiol type saponins, 4 protopanaxatriol type saponins, salidroside, rutin and isoquercitrin were tested by a recombinant yeast.
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