But if deeper tissue is affected, a person is likely to feel pain every time the area gets cold.

VOA: special.2009.12.23

But recent findings suggested that tPA may be effective in saving brain tissue even if three to four and a half hours have passed.

VOA: special.2009.09.22

In the process, a small piece of tissue is taken from a high quality orchid.

VOA: special.2010.04.06

But recent findings have suggested that tPA may be effective in saving brain tissue even if three to four and a half hours have passed.

VOA: special.2009.08.12

She says the chimpanzee tissue showed a severe loss of immune system cells.

VOA: special.2009.09.08

A drug called tissue plasminogen activator, or tPA,can break up blood clots.

VOA: special.2009.09.22

The tissue is made into tiny pieces and grown in a laboratory.

VOA: special.2010.04.06

These problems were more common among males, those with injured nerve tissue in the brain and those who had been given oxygen supplies for days as a baby.

VOA: special.2010.11.30

The process calls for culturing from the merismatic tissue on a plant.

VOA: special.2010.04.06

Buruli ulcer is a bacterial disease that eats away muscle tissue.

VOA: special.2009.04.06

Marrow is a soft, spongy tissue inside bones.

VOA: special.2009.12.16

"The fact that tissue was preserved for more than a few decades helps us to learn more about past disease and actually eventually help to avoid these kinds of diseases in the future."

VOA: standard.2010.05.05