India, Jan. 16 -- Berlin (dpa) - British scientists have made a potentially important discovery related to dementia and Alzheimer's disease that could pave the way for the development of drugs to treat the conditions. In a paper published by npj dementia, a Nature journal, University College London (UCL) researchers point to a gene called APOE as "probably" linked to half of all dementia cases and "potentially" 90% of those of Alzheimer's. According to UCL, the findings suggest that the gene and a related protein could be an "under-recognised target for drug development, which could have the scope to prevent or treat a large proportion of all dementia." While APOE has long been linked to the diseases, according to the UCL team, their findin...