Amyloid accumulation occurs faster in those who have objectively-defined cognitive difficulties than older people who are considered to be cognitively normal. Mild cognitive impairment is also associated with faster hippocampal and entorhinal cortex atrophy.
Fruit flies exposed to blue light had significantly reduced longevity than those exposed to natural light or kept in darkness. Exposure to blue light for 12 hours a day accelerated aging phenotypes, causing retinal damage, neurodegeneration, and impaired locomotion.
Schwann cells help protect nerves against blood clotting factors that cause degeneration, researchers report.
Researchers say a new retinal imaging test could be a reliable tool for measuring the progression of neurodegenerative diseases, such as Alzheimer's. The study reports the tool can detect drusen, which is often higher in those with AD.
A new study reveals long term exposure of particulate matter in air pollution triggered the appearance of cancer related genes and inflammation in the brains of rats. The study provides additional insight into the health effects of air pollution.