Anti-viral gene affects Alzheimer’s, Covid

eAwaz Health

London – Researchers have identified an anti-viral gene that impacts the risk of both Alzheimer’s disease and severe Covid-19. A team from the University College London (UCL) estimated that one genetic variant of the OAS1 gene increases the risk of Alzheimer’s disease by about 3-6 per cent in the population as a whole, while related variants on the same gene increase the likelihood of severe Covid-19 outcomes. “While Alzheimer’s is primarily characterised by harmful build-up of amyloid protein and tangles in the brain, there is also extensive inflammation in the brain that highlights the importance of the immune system in Alzheimer’s. We have found that some of the same immune system changes can occur in both Alzheimer’s disease and Covid-19,” said lead author Dr Dervis Salih, from UCL’s Queen Square Institute of Neurology and UK Dementia Research Institute.