The smallest blood vessels are called capillaries we've got 19 billion of them in our bodies.

So with antithrombin in that goat that goat has been genetically modified so that the molecules of its milk actually include the molecule of antithrombin that GTC Genetics wants to create.

Within a few minutes, she went into cardiac collapse.

What nitric oxide does is it dilates blood vessels, so it lowers your blood pressure.

There is no change in blood flow, in dilatation of the blood vessels.

Han Zhiyuan reminded people who have high blood pressure, high blood sugar, high blood lipids, smoking habits, family history and other cardiovascular risk factors may easily suffer from cardiovascular disease if staying up late.

In the arm, you can measure blood flow in the arm by how much it swells up as some blood flows into it.

They're the veins of the ecosystem, and they're often empty veins.

This is the blood vessels.

Given that these mischievous forms of hemoglobin are difficult to study in living systems, researchers have largely ignored them. Instead, they have focused on strategies for preventing the kidneys from filtering the infused hemoglobin the hemoglobin from leaking through the blood vessel walls and synthetic hemoglobin from destroying nitric oxide (a gas produced in blood vessels that helps them to dilate and increase blood flow).

Our arteries can clog. Our brains can gunk up with plaque, and we can get Alzheimer's.

Anti clotting drug ticagrelor slashes the risk of repeat attacks for people with heart disease.

As we looked at the river itself, you could see there's a concrete stone on the west side. There's a cloud of blood.

There were blood vessels left.

It's just basically two strands.

The vessels looked better.

It s not so much psychological, it s vascular, and nicotine makes your arteries constrict.

The revolution is called angiogenesis, and it's based on the process that our bodies use to grow blood vessels.

What if we take a new device and knock out the nerve vessels that help mediate blood pressure and in a single therapy to cure hypertension?

And this is actually what it looks like, hundreds of blood vessels all growing toward the center of the wound.

We then take this vascular structure and we can prove that we retain the blood vessel supply.

And that is microvascular obstruction.

I want to look at the blood vessels. I want to look at the liver.

So the body's ability to balance angiogenesis, when it's working properly, prevents blood vessels from feeding cancers.

For example, insufficient angiogenesis not enough blood vessels leads to wounds that don't heal, heart attacks, legs without circulation, death from stroke, nerve damage.

In fact, if you actually block angiogenesis and prevent blood vessels from ever reaching cancer cells, tumors simply can't grow up.

We then take the cells, the vascular cells, blood vessel cells, we perfuse the vascular tree with the patient's own cells.

This is actually an engineered blood vessel.

Take a look at this little tuft of capillaries.

There's a big pipe with the blood flowing through it, and around that pipe are the nerves drawing their nutrient supply from the blood.

During 2001, of the 1824 infection cases notified, 802 met the expanded definition of AIDS. Of these

You place the vascular blood vessel lining cells on the inside.

We worked with a theme, which is, you've got macrophages that are streaming down a capillary, and they're touching the surface of the capillary wall, and they're picking up information from cells that are on the capillary wall, and they are given this information that there's an inflammation somewhere outside, where they can't see and sense.

So the surgeon can see inside the patient, through their lens, where the tumor is, where the blood vessels are.

There were flexible, clear blood vessels.

And one sixth the rate of cardiovascular disease.

And on the other end, excessive angiogenesis too many blood vessels drives disease, and we see this in cancer, blindness, arthritis, obesity, Alzheimer's disease.

A blood vessel is made up of two different cell types.

Because if you actually look through your fingernails, you can see blood vessels, and once you see blood vessels, we think we can see the malaria.

And they get me to that nearby hospital, Cedars Sinai, where that night I receive, because of my internal bleeding, 45 units of blood which means full replacements of all the blood in me before they're able to staunch the flow.

We get most of these blood vessels when we're actually still in the womb, And what that means is that as adults, blood vessels don't normally grow.

We call this antiangiogenic therapy, and it's completely different from chemotherapy because it selectively aims at the blood vessels that are feeding the cancers.

So we actually perfuse first the blood vessel tree with the patient's own blood vessel cells, and we then infiltrate the parenchyma with the liver cells.

So this suggests that maybe if there is an anti angiogenic factor in skeletal muscle or perhaps even more, an angiogenic routing factor, so it can actually direct where the blood vessels grow this could be a potential future therapy for cancer.

So why should we care about blood vessels?