1.   After sloughing of the damaged cells from the surface of the mucosa, no sign of recovery or re-epithelialisation was noted in urethane anaesthetised rats.

2.   His group is transferring nuclei from damaged cells into immature healthy eggs to find out whether they will then divide normally and form healthy mature eggs.

3.   If the damage is too severe, cells are genetically programmed to self-destruct, a fail-safe mechanism to prevent damaged cells turning cancerous.

4.   In treating cystic fibrosis, one of the earliest diseases targeted with gene therapy, researchers are using the common cold virus to deliver healthy genes to damaged cells.

5.   Scientists in Texas have found that sunburn may actually stop the beginnings of skin cancer by ridding the skin of genetically damaged cells.

6.   The microchips are artificial retinas designed to fill in for damaged cells and help restore lost vision.

7.   They hope these therapies will bring outlaw cancer cells back into good behavior or prod irrevocably damaged cells into apoptosis, or cell suicide.

8.   When large numbers of neurons are injured or killed, NAA levels drop and damaged cells release more choline.

9.   When used for burns, aloe also helps prevent swelling, repair damaged cells, fight infection and prevent scarring, according to the American Botanical Council.

10.   Without repairs, the damaged cells can become cancerous.