EurekAlert reports on new understanding of age-related macular degeneration: "Age-related macular degeneration, the leading cause of blindness in the elderly, occurs when a common inherited gene variation is triggered, possibly by an infection, according to a new study ... The gene, known as Factor H, encodes a protein that regulates immune defense against infection caused by bacteria and viruses. People who have an inherited variation in this gene are less able to control inflammation caused by these infections, which may spark age-related macular degeneration (AMD) later in life, the study finds. ... By targeting the molecules involved in inflammation and its regulation we believe we can begin to develop therapies and diagnostic tools that could help countless people keep their sight."

Link: http://www.eurekalert.org/pub_releases/2005-04/cuco-vii042705.php