So, the first “bad” compound in meat we'll have a look at is heme iron.

所以，肉中个“不好”化合物是红素铁。

The WHO's IARC report identified heme iron as one of the suspect compounds in meat.

世界卫生组织国际癌症研究机构报告确认红素铁是肉类中可疑化合物之。

Normally, hemoglobin is made up of four globin chains, each bound to a heme group.

正常情况下，红蛋白由4条珠蛋白链组成，每条珠蛋白链都与个红素基团结合。

Without this enzyme, porphobilinogen cannot be converted to hydroxymethylbilane and the heme synthesis pathway can't continue.

没有了这个酶，卟胆原不能够转化为羟甲基胆素，红素合成途径中断。

The main methods of treatment are glucose and heme.

主要治疗措施为使用葡萄糖和红素。

Another adds an iron-containing molecule called heme, which their team says is key to its meaty flavor.

还有公司添加了含铁红蛋白分子，并称这是“肉味”关键。

There are four globin subunits, typically two alpha and two beta, and each one has its own heme group.

它含有四个球蛋白亚基，通常是2个α亚基和2个β亚基，每个亚基都含有红素分子。

Heme iron is said to increase your risk for heart disease, and even cancer, particularly colon cancer.

据说红素铁会增加患心至癌症风险，尤其是结肠癌。

Depending on the person and their lifestyle, iron stores can deplete rapidly when you stop ingesting heme iron.

根据个人及其生活方式，当你停止摄入红素铁元素时，体内铁元素会迅速耗尽。

And ten tongue twisters later, we've got a completed heme.

在这十个绕口令之后，我们就得到了完整红素。

Scientists found that its belly contained iron, bound up in a molecule called heme—the compound in blood that carries oxygen.

科学家在其腹部发现含有铁, 组成了种被称为亚铁红素分子，这是种在液中携带氧气化合物。

Without Delta-ALA synthase, there's a build up of iron and not enough normal heme production.

若缺乏Delta-ALA合酶，就会导致铁堆积及正常红素合成减少。

Now with sideroblastic anemia, there's defective protoporphyrin synthesis, which results in impaired incorporation of iron to form heme.

在铁粒幼细胞性贫中，原卟啉合成存在缺陷，导致铁结合形成红素能力受损。

Each hemoglobin molecule contains four heme groups with iron cores to which oxygen binds.

每个红蛋白分子包含四个红素基，铁核与氧结合。

Hemoglobin is actually made up of four peptide chains, each bound to a heme group.

红蛋白实际上是由四条肽链构成，其中每条肽链均与亚铁红素结合。

It's called 'heme' and it's a key ingredient in their wheat, coconut and potato-based meat duplicate.

它被称为“ 红素” ， 是他们小麦、椰子和马铃薯肉制品关键成分。

Now hemoglobin is made up of hemes and globins.

红蛋白由红素与珠蛋白构成。

Heme, of course, is the reason your blood can carry oxygen.

当然，红素是液能够携带氧气原因。

Zooming in even closer, each hemoglobin molecule is made up of four smaller heme molecules, which have iron right in the middle.

再放大看，每个红蛋白分子由四个更小红素分子组成，它们中间有铁。

This oxygen is bound to hemoglobin, which consists of an iron-containing pigment called heme and a protein part called globin.

这些氧气与红蛋白结合，红蛋白由叫做红素含铁色素和叫做珠蛋白蛋白质部分组成。