Brain cell research offers hope for Alzheimer's NEW YORK, Feb 28 (Reuters Health) -- Taking cells from a region of the brain known as the hippocampus, an international team of researchers have grown functional brain cells in lab cultures. The findings may have profound implications for restoring damaged or degenerative brain cells, which occurs in diseases such as Alzheimer's and Parkinson's. The brain has recently been shown to regenerate some of its cells, but scientists were unable to identify the cells, known as stem cells, that gave rise to the new brain neurons. The technique used in this study no