低水平的游离是至关重要的，因为这个过程提供了一种新基因的来源和一种机制，通过这种机制，如果该地鱼群消失，可以重新繁殖该种群。

Low levels of straying are crucial, since the process provides a source of novel genes and a mechanism by which a location can be repopulated should the fish there disappear.

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研究人员在研究起始和终点均测量了游离及总生殖激素水平。

The researchers measured total and free reproductive hormone levels at study entry and two years later.

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结论针刺可以降低肥胖患者的游离脂肪酸水平，提高其胰岛素敏感性，从而表现出抑制脂毒性的效应。

Conclusion Acupuncture can lower the levels of free fatty acids in the patients and increase their sensitivity to insulin to inhibit the effect of fatty toxicity.

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