基因表达是由众多顺式作用元件和反式作用因子相互作用调控的。
Gene expression is regulated by the complex interaction of many cis-acting elements and trans-acting factors.
它涉及到染色体结构的改变、顺式作用元件和反式作用因子相互作用等多种过程。
Many events such as the alteration of chromatin structure, the interaction between cis-elements and trans-factors are involved in this process.
已有研究表明DNA顺式作用元件与反式作用因子之间的相互作用是染色质重塑和基因转录调节的基础。
Present studies indicate that the interactions between trans-acting factors and corresponding DNA cis-acting elements are the basis of chromatin remodeling and gene transcription regulation.
反式脂肪是唯一的对排卵有关的生育有不利作用的脂肪。
Trans fats were the only fats found to negatively affect ovulation-related fertility.
结论右旋反式氯丙炔菊酯对蚊虫和蟑螂等害虫具有良好的击倒作用和杀灭能力，可以作为一种新型卫生杀虫剂加以推广和应用。
Conclusion it had a superior knockdown and killing effect against general hygienic insects and it was worth promoting and applying as a new insecticide.
结果表明，在此催化剂作用下，碘代苯与丙烯酸反应具有较好的立体选择性，只生成反式苯丙烯酸；
The result shows that, under this catalytic reaction, the Heck arylation of iodobenzene with acrylic acid has a good stereoselectivity and only trans-cinnamic acid is produced.
科学家说：即使摄取相当少的反式脂肪酸，其对人体的伤害作用仍然明显的。
The scientists say the harmful effects of trans fatty acids were still evident when intake was really low.
进一步对反式脂肪酸加以区分，并对反式脂肪酸各异构体功能与作用机理进行深入研究，是目前反式脂肪酸领域研究的重要方向。
To make differences among these isomers of trans fatty acids and research the function and mechanism of trans fatty acids isomers on human health are very important for our future work.
这表明，并非所有反式脂肪酸异构体都有同样的生理作用，不同异构体的生理活性可能存在差异；
Therefore, not all trans fatty acid isomers have the same physiological effects which may vary in different isomers.
目的探讨全反式维甲酸（ATRA）对糖尿病大鼠足细胞损伤的保护作用。
Objective To investigate the protective effect of all-trans retinoic acid (ATRA) on podocyte lesion in diabetic rats.
目的：探讨全反式维甲酸（ATRA）对人乳腺癌MCF-7细胞凋亡的影响及作用途径。
Objective To investigate the possible pathway of the effect of all-trans retinoic acid(ATRA) on the apoptosis of human breast cancer cell line(MCF-7).
结论全反式维甲酸具有调控分化相关基因表达与否的重要作用，由RA诱导的肿瘤细胞再分化是一个多基因参与的过程。
Conclusion ATRA plays an important role in regulating the differentiation-related gene expression. ATRA-induced differentiation is a complex process with multiple genes involved.
同时，我们还发现，病毒非结构蛋白NS1对该启动子具有反式激活作用，并且这种激活作用的大小取决于 NS1 蛋白在细胞中的浓度。
In addition, we found that the tr a nscriptional activity of this promoter could be transactivated by the viral nonstructural protein NS1 in a concentration dependent fashion in S2 cells.
同时，我们还发现，病毒非结构蛋白NS1对该启动子具有反式激活作用，并且这种激活作用的大小取决于 NS1 蛋白在细胞中的浓度。
In addition, we found that the tr a nscriptional activity of this promoter could be transactivated by the viral nonstructural protein NS1 in a concentration dependent fashion in S2 cells.
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