This enzyme is important because it helps break down the amino acid leucine.

这种酶十分重要，因为它能分解基白。

One last factor in Ketosis preserving muscle is leucine.

酮症最后一个储存能量的要素是。

Without this enzyme, leucine can only be broken down part-way.

没有这种酶，只能被部分分解。

When you're in ketosis, you have a higher fasting blood leucine level.

当你处于酮症状态时，空腹的血液中水平会更高。

Glycine, alanine, valine, leucine are all nonpolar assets and this is how you drop them in an exam.

甘，丙，缬，全都是非极的，这就是你如考试的秘诀啦！

The bacteria hiding out between your toes produce this acid when they're chomping away on leucine.

当隐藏在脚趾的细菌产生时，就会产生这种。

Corn is actually very high in leucine.

玉米中含量实际上非常高。

Well, it'll probably track with plasma leucine.

嗯，它可能会追踪血浆。

Measurements like fractional synthetic rate within 0 to 5 hours post-exercise were reduced by as much as 20 percent through leucine tracer observations.

通过示踪观察，诸如运动后0到5小时内的分数合成率等测量值降低了20%。

And leucine is a key branch chain amino acid that has an anabolic effect on the body so it preserves lean body mass.

而是一种在体内起合成代谢作用的，关键支链基，所以它能保护体内脂肪较少的肌肉块。

There is, so far, no cure for isovaleric acidemia, but some treatments — like avoiding foods rich in leucine, and taking supplements of other, non-threatening amino acids — can help keep patients safe.

目前没有治疗异戊血症的方法，但是一些疗法——比如避免进食白过多的食物，从其他物质中，比如没有威胁的基，能够保证患者安全。

Essential amino acids, or EAAs, are amino acids that our body needs but cannot produce on its own, and there are 9 of them: Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

基本基，简称 EAA，是我们身体需要但不能自己产生的基，其中有 9 种：组，异，，赖，蛋，苯丙，苏，色和缬。

He found that inside of our emotional tears -- not our everyday, like, yawning tears, but our emotional tears -- there's high concentrations of stress hormones and leucine enkephalins, which, easier on my tongue, is endorphins.

他发现在我们情绪化的眼泪中——不是我们日常的， 比如打哈欠的眼泪，而是我们情绪化的眼泪——有高浓度的压力荷尔蒙和脑啡肽， 我的舌头更容易理解的是内啡肽。