This is actually a heart valve, which we engineered.

And the way you engineer this heart valve is the same strategy.

This is actually a heart valve that we've engineered, and you can see here, we have the structure of the heart valve and we've seeded that with cells, and then we exercise it.

And the fact that pig heart valves have lots of these on them is the reason that you can't transplant a pig heart valve into a person easily.

So, the most beautiful thing I found at least what I think is the most beautiful in the book, is this heart valve.

So this is actually a Dutch company, so I called them up, and I asked, Can I borrow a heart valve from you?

Great and then I didn't hear from them for weeks, so I called, and I asked, What's going on with the heart valve?

The low tech bit is that it's literally a pig's heart valve mounted in the high tech bit, which is a memory metal casing.

So you see the leaflets opening and closing of this heart valve that's currently being used experimentally to try to get it to further studies.

And they said, Well the director of the company decided not to let you borrow this heart valve, because want his product to be associated with pigs.

This is called a cycle valve tube.

And once it's in the right spot, they remove the outer shell, and the heart valve, well, it gets this shape and at that moment it starts beating, instantly.

And this is how you make a valve.

Does the color of the valve matter? What matters here?

Now that's a left ventricle pushing blood up through the aortic valve you can see two of the leaflets of the aortic valve working there up into the ascending aorta.

It has a funny trilobal shape at the bottom, which contains the aortic valve.

The surgery on offer was pretty gruesome anesthetize you, open your chest, put you on an artificial heart and lung machine, drop your body temperature to about 18 centigrade, stop your heart, cut the aorta out, replace it with a plastic valve and a plastic aorta, and, most importantly, commit you to a lifetime of anticoagulation therapy, normally warfarin.

Even trips to the dentist require that you take antibiotics, in case you get an internal infection on the valve.

People bring their own cooker, he attaches a valve and a steam pipe, and now he gives you espresso coffee.

We take the scaffold, we seed it with cells, and you can now see here, the valve leaflets opening and closing.

Its unique cool flow valve can efficiently discharge hot and damp exhaled breath from inside the respirator, allowing easier breathing for users.

Likewise, if you have the artificial valve option, you're committed to antibiotic therapy whenever you have any intrusive medical treatment at all.

He turned the wrong valve when he filled his cylinder he had 80 percent oxygen in his tank when he should have had 40.

The fire disaster happened at about 10 00am and was put out at about 10 30am. It is the snifting valve inside that triggered the fire.

And some of these models so you take a bit of this cycle valve tube, you can put two matchsticks inside this, and you make a flexible joint.

We had a heart to heart talk with each other.

Between friends, to have a heart to heart is really rejuvenating.

But many other single currency areas, including the US, display similar divergence. It should also be obvious that, in the absence of currency markets to act as a valve for economic and financial pressures, economic volatility may increase.

And then will come what they call the heart, the lush heart note.

People still believe in Voodoo. Heart disease, VSD, hole in the heart, tetralogies.

My son, if thine heart be wise, my heart shall rejoice, even mine.

My son, if thine heart be wise, my heart shall rejoice, even mine.

Stem cells may be used to deliver growth factors to repair damaged heart muscle or be differentiated into heart muscle cells to restore heart function.

Australians have about a third less heart disease than we do less deaths from heart attacks, heart failure, less strokes they're generally a healthier bunch.

We're doing this at the Cedars Sinai Heart Institute in the Women's Heart Center.

It would have heart in that it would have passion and heart and soul.

A glad heart makes a cheerful face but an aching heart breaks the spirit.

A glad heart makes a cheerful face but an aching heart breaks the spirit.

That's human heart.

Open your heart.

My son, if your heart is wise, then my heart will be glad, even mine

My son, if your heart is wise, then my heart will be glad, even mine

And what happens is this can be implanted into a human heart without open heart surgery.

A wise man's heart is at his right hand, but a fool's heart at his left.

because if our heart condemns us, God is greater than our heart, and knows all things.