The READ 2 Study will test the long-term security and performance of intraocular shots of ranibizumab in individuals with diabetic macular edema , a condition characterized by swelling of the retina because of leaking of fluid from blood vessels within the macula. DME is the leading cause of vision loss among working-age Us citizens. Related StoriesMayo Clinic investigators discover novel mechanism linked to diabetes riskType 2 diabetes drug significantly reduces hospitalizations, loss of life from heart failureStudy explores diabetes screening for individuals with serious mental illnessThe READ2 research is supported by Genentech and JDRF.‘This study displays learning can delay the progression of Alzheimer’s neuropathology in mice genetically built to develop this insidious disorder, and learning also delays the cognitive decline,’ said Frank LaFerla, professor of neurobiology and behavior and co-writer of the study. ‘These remarkable results suggest stimulating your brain with activities such as reading books or completing crossword puzzles may help delay and/or prevent Alzheimer’s disease in senior citizens.’ The study appears in the Jan. 24 issue of the Journal of Neuroscience. LaFerla; James McGaugh, research professor of neurobiology and behavior; and postdoctoral researchers Kim Green and Lauren Billings studied hundreds of mice between two and 1.