31.   The switched-on human cells are then grown in a culture to produce the drug.

32.   The US Food and Drug Administration is considering what, if any, reviews it should conduct on a promising new procedure for growing cartilage cells.

33.   The stock of Genzyme Tissue Repair, which grows cartilage cells to treat knee damage, is traded separately from the General Division shares.

34.   This, they believed, could provide the scaffolding needed to attach and grow human cells onto the valve.

35.   This process made it possible to grow cells from leukemia patients and use them to test the effectiveness of drugs.

36.   Until recently, medical dogma also held that the brain could not grow new cells.

37.   When Coriell began his work in Camden, scientists were able to grow plant cells in culture but found it difficult to do the same with human cells.

38.   A pump sent pulses of nutrient through the tube, feeding the cells and causing them to grow new cells.

39.   Black grew brain cells from cells taken from bone marrow, where they ordinarily would have created bone, cartilage, muscle, tendon and fat cells.

40.   By properly nurturing embryonic stem cells, experts say, they believe they can grow new cells to restore ailing organs in chronically ill patients.