A new University of Guelph study has discovered why exposure to pesticides increases some people’s risk of developing Parkinson’s disease. Previous studies have found an association between two commonly used agrochemicals (paraquat and maneb) and Parkinson’s disease. Now U of G professor Scott Ryan has determined that low-level exposure to the pesticides disrupts cells in […]
Low doses of radiation used in medical imaging lead to mutations in cell cultures
Common medical imaging procedures use low doses of radiation that are believed to be safe. A new study, however, finds that in human cell cultures, these doses create breaks that allow extra bits of DNA to integrate into the chromosome. Roland Kanaar and Alex Zelensky of Erasmus University Medical Center and Oncode Institute and colleagues […]
Blue-eyed humans have a single, common ancestor
New research shows that people with blue eyes have a single, common ancestor. A team at the University of Copenhagen have tracked down a genetic mutation which took place 6-10,000 years ago and is the cause of the eye colour of all blue-eyed humans alive on the planet today. What is the genetic mutation “Originally, […]