科学家发现，下丘脑中有一种肽类物质叫做“黑色素聚集激素”或者“MCH”，在饥饿时期可以使生殖系统失去活性。
The scientists found that a peptide active in the hypothalamus called melanin-concentrating hormone or MCH can inactivate the reproductive system in times of hunger.
但是这仅仅是在它们同活性的物质如药物或者激素，混合时才能够实现。
But this was only possible when they were mixed with certain active substances such as anticancer drugs or growth hormones.
植物激素是对植物的生长发育产生显著的调节作用的生理活性物质。
Plant hormone is a kind of physiological activity substance adjusting plant growth effectively.
此结果为进一步研究垂体前叶神经活性物质和激素之间的关系，提供了形态学证据。
Our study provided further morphological evidence for understanding the complex relationship between pituitary peptide-galanin with pituitary hormones.
大豆黄酮主要存在于大豆及其他豆科植物中，它是一种同时具有雌激素样和抗雌激素样作用的天然活性物质。
Daidzein exists in soybean and other leguminous plants which is a kind of naturally active substance with the function of estrogen and anti-estrogen.
植物雌激素是一类天然存在于植物中，与雌激素结构近似的生物活性物质。
Phytoestrogens are bioactive substances existing in natural plants. They have similar molecular structure to those of estrogens.
植物雌激素是一类天然存在于植物中，与雌激素结构近似的生物活性物质。
Phytoestrogens are bioactive substances existing in natural plants. They have similar molecular structure to those of estrogens.
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