That “form” is called ATP, if you're familiar with that.

如果你熟悉这种形式的话，它的名字叫做 ATP（腺嘌呤核苷三磷酸）。

Adenine will always bind with thymine and cytosine with guanine.

腺嘌呤总是与胸腺嘧啶结合，胞嘧啶与鸟嘌呤结合。

Purine-rich foods include shellfish, anchovies, red meat or organ meat.

富含嘌呤的食物包括贝类、凤尾鱼、牛羊肉等红肉或内脏。

So the caffeine doesn't even need to compete with the adenosine to fit into those receptors.

所以咖啡因不用和腺嘌呤核苷竞争受体。

Now, from a chemical perspective, caffeine can be described as both a methylxanthine and an alkaloid.

从化学角度来看，咖啡因既可以被描述为黄嘌呤，也可以被描述为物碱。

Then it starts to make more, using a bunch of different chemical reactions.

然后身体利用很多不同的化学反应开始制造更多的腺嘌呤核苷三磷酸。

When you exercise, your body uses up its main source of energy, ATP, within a few seconds.

当你锻炼的时候，你的身体在几秒钟内便耗尽了其能量的主要来源，即腺嘌呤核苷三磷酸。

There are four bases: adenosine, thymine, cytosin, and guanine.

腺苷、胸腺嘧啶、胞嘧啶和鸟嘌呤。

The Nitrogenous bases are of four different types: Adenine, Guanine, Cytosine and Thymine.

含氮碱有四种不同的类型：腺嘌呤、鸟嘌呤、胞嘧啶和胸腺嘧啶。

There are also medications that help to decrease uric acid levels, which include xanthine oxidase inhibitors like allopurinol.

也有一些药物可以帮助降低尿酸含量，包括黄嘌呤氧化酶抑制剂，如别嘌醇。

In more severe cases though, drugs that suppress the immune system, like corticosteroids, azathioprine, or cyclosporine might be prescribed.

在某些更严重的病例中，可能会用到免疫抑制药物，如糖皮质激素、硫唑嘌呤和环孢素。

But for the remaining .1%, one person might have an adenine where another person has a guanine.

但对于剩下的0.1%，一个人可能有腺嘌呤而另一个人有鸟嘌呤。

Finally, there are some rare stones made of xanthine, which, just like uric acid, is a byproduct of purine breakdown.

最后，还有由黄嘌呤形成的罕见结石，同尿酸一样，是嘌呤分解的副产物。

Some fish eyes use guanine—one of the chemical building blocks in DNA—and have white eyeshine.

一些鱼的眼睛使用鸟嘌呤——DNA 中的一种化学成分——并且有白色的眼睛。

The mirror is made from crystals of guanine.

镜子由鸟嘌呤晶体制成。

Purine position 1 to pyrimidine position 1, purine position 6 to pyrimidine position 6.

嘌呤位置 1 到嘧啶位置 1，嘌呤位置 6 到嘧啶位置 6。

The series of reactions that generate more ATP in muscles do produce extra protons, which lowers the pH in your muscles.

肌肉中形成更多腺嘌呤核苷三磷酸的系列反应确实产了额外的质子，这会降低肌肉中的酸碱值。

To understand where the uric acid comes from, let's start with purines, which, together with pyrimidines, are nature's most common nitrogen-containing heterocycles.

为了说明尿酸从何而来，让我们先来了解嘌呤和嘧啶，它们都是自然界中最见的含氮杂环。

Guanine crystals typically form into bulky prisms, but the crystals in the scallop's eye, form into perfect squares.

鸟嘌呤晶体通形成庞大的棱柱，但扇贝眼中的晶体形成完美的正方形。

DNA is made of four organic bases: adenine, guanine, cytosine, and thymine, or A, G, C, and T.

DNA 由四种有机碱组成：腺嘌呤、鸟嘌呤、胞嘧啶和胸腺嘧啶，即 A、G、C 和 T。