41.   So no one knows if he contracted his brain disease from animals or spontaneously developed the illness destroying his brain.

42.   Some scientists believe BSE is related to the human brain disease, Creutzfeld-Jakob disease, and can be spread through the food chain.

43.   Snyder envisions a new approach to many brain diseases, based on the use of neural stem cells.

44.   Substances that cannot cross this barrier are unlikely to make effective treatments for a brain disease.

45.   The accumulation of aberrant proteins in the brain cause diseases like mad cow disease, scrapie insheep and Creutzfeldt-Jakob disease in humans.

46.   The appearance of this rare brain disease in so many people in just four years has taken scientists by surprise.

47.   The ban was imposed amid concerns BSE is linked to a rare brain disease in humans.

48.   The composer Maurice Ravel also may have had a form of the brain disease.

49.   The deaths were at first incorrectly attributed to a degenerative brain disease.

50.   The cause was a rare brain disease, paraneopalpic cerebellar syndrome, his wife, Patricia, said .