Millions suffer from sickle cell anemia because they have a single A to T point mutations in both copies of their hemoglobin gene.

数百万人患有镰状细胞性贫血，因为们血红蛋白基因两个拷贝都有一个A点到T点突变。

And each of those hemoglobins can bind to four oxygen molecules.

而一个血红蛋白能4个氧分子结合。

These disorders are caused by genetic mutations that prevent the normal production of hemoglobin.

这些疾病是由阻止血红蛋白正常产生基因突变引起。

The illnesses are caused by errors in the gene for hemoglobin.

这些疾病是由血红蛋白基因缺陷引起。

However, a decrease in carbon dioxide results in hemoglobin holding onto the oxygen and it's less available for the brain, muscles, and other tissues to use.

然而，当二氧化碳含量降低时，血红蛋白就会紧紧‘抓住’氧气不放，这时，人大脑、肌肉和其身体组织反而得不到所需氧气。

It's where it's a chemical reaction within a non-oxygen environment which keeps the outside of the meat pink so the hemoglobin gets locked in uh so using the nitrites something to do with that.

这是在无氧环境中发生化学反应，使肉外部保持粉红色，因血红蛋白被锁住，嗯，所以使用亚硝酸盐有关。

Octopus have a different special protein called haemocyanin, which makes their blood blue, and the ice fish doesn't have either hemoglobin or the haemocyanin which is why the blood runs clear.

章鱼有一种不同特殊蛋白质，叫做血青素，这使它们血液呈蓝色，而冰鱼既没有血红蛋白，也没有血青素，这就是为什么血液是透明。

This proportion of glycated hemoglobin doesn't change day to day, so it gives a sense for whether the blood glucose levels have been high over the past 2 to 3 months.

糖化血红蛋白比例不会每天变化，所以它可以说明血糖水平是否已经持续走高2-3个月。

By hijacking your hemoglobin which normally carries oxygen in your blood, cells in major organs, like the brain and heart will suffocate and die heightened of levels.

血红蛋白通常在血液中携带氧气，通过血红蛋白一旦被劫持，大脑和心脏等主要器官细胞就会窒息而死。

In order to better understand sideroblastic anemia, we need to first take a look at hemoglobin, the main protein within RBCs that's responsible for carrying oxygen.

为了更好地了解铁粒幼细胞性贫血，我们首先要了解血红蛋白，它是红细胞中负责运输氧气主要蛋白质。

Athletes sometimes train at high altitude to improve their hemoglobin so that they are capable of carrying more oxygen when they are at sea level.

运动员有时在高海拔地区训练以提高们血红蛋白，这样当们在海平面上时，们就能够携带更多氧气。

Sickle cell disease, where blood cells are sickle-shaped due to a structurally abnormal hemoglobin protein that can cause tissue ischemia, has been linked to FSGS.

血细胞因血红蛋白结构异常而整体呈现镰刀形，可导致组织缺血，FSGS有关。

So yeah, I can immediately look at this graph now and think, okay, that's what I thought this dissociation curve for hemoglobin looked like.

所以，是，我现在可以立即看到这个图表并思考，好吧，这就是我认为血红蛋白解离曲线样子。

Users wear it on their arm. The device has a sensor that measures hemoglobin oxygen levels and changes to the heart rate called HRV.

用户需要将它戴在手臂上。该设备附带传感器可测量血红蛋白氧水平和心率变异性（HRV）。

The blood contains hemoglobin, which carries the super important oxygen, while the heart pumps this blood to all the tissues in the body.

血液中含有血红蛋白，它携带着非常重要氧气，而心脏将这些血液泵入身体各个组织。

Yes, there are some studies that show positive effects in things like reducing hemoglobin A1C, reducing blood pressure, reducing body mass index.

是，一些研究表明，这种做法在降低糖化血红蛋白（A1C）、降低血压和降低体重指数方面有积极效果。

Sickle cell disease is an inherited disorder that affects hemoglobin, the major protein that carries oxygen in red blood cells.

镰状细胞病是一种遗传性疾病，会影响血红蛋白，血红蛋白是红细胞中携带氧气主要蛋白质。

Their hemoglobin is much stickier for oxygen than ours and can pick oxygen up even when it's scarce.

它们血红蛋白比我们更加粘，能够在氧气很稀薄情况下也能进行收集。

To treat sickle cell disease, researchers used CRISPR to make the body produce the fetal form of hemoglobin.

为了治疗镰状细胞病，研究人员使用 CRISPR 使身体产生胎儿形式血红蛋白。

So cutting this already-mutated hemoglobin gene that causes sickle cell anemia won't restore the ability of patients to make healthy red blood cells.

因，切断这种已经突变导致镰状细胞贫血血红蛋白基因不会恢复患者制造健康红细胞能。