Researchers explore whether helping make better scar tissue in your heart could be a possible alternative to re-growing new tissue. Heart disease is the number one cause of death globally, according to the World Health Organisation (WHO), affecting millions of people every year.
Freebase(0.00 / 0 votes)Rate this definition: Necrosis. Necrosis is a form of cell injury that results in the premature death of cells in living tissue. Necrosis is caused by factors external to the cell or tissue, such as infection, toxins, or trauma that result in the unregulated digestion of cell components.
The term for tissue death is either necrosis or apoptosis, depending on the situation. Apoptosis is preprogrammed tissue death, while necrosis is not preprogrammed. An infarctâ¦ is an area of tissue that has died due to lack of blood supply.