If the disease had a genetic origin, then identical twins, who share every gene, would both be expected to get the disease. This does not happen, the new study shows. That leaves environmental chemicals as the culprit for the vast majority of Parkinson's, according to the researchers who conducted the twin study. The twin study should provide comfort to family members of Parkinson's victims who have been fearful about their own future based on their genetic relationship to the victim. However, the new study provides cause for concern among farmers, pesticide applicators, and people who live in farming communities where regular exposure to pesticides is unavoidable.
Subscriptions are free.
We would like to continue to provide this service free. Please do not send credit card information via E-mail.