J.T. Chronic systemic exposure reproduces features of Parkinson s disease. Previous studies have indicated a link between Parkinson s disease and pesticide exposures in humans. This study administered the pesticide rotenone to rats and found that the animals developed Parkinson s-like symptoms.
Rotenone is a naturally-derived chemical that is considered an 'organic' pesticide.
The brains of the exposed rats developed specific microscopic changes that are characteristic of Parkinson s disease in humans. Environmental and heritable factors in the causation of cancer. Only a minority of cancers are due solely to genetic factors. The rest of these cancers are due to environmental factors, such as diet, personal habits, occupation, and pollution. Several environmentally-persistent pollutants that are known or suspected endocrine disruptors were recently identified in amniotic fluid samples from women in Los Angeles, California.