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They found that the combined exposure to ziram, maneb and paraquat near any workplace increased the risk of Parkinson's disease (PD) threefold, while combined exposure to ziram and paraquat alone was associated with an 80 percent increase in risk. The results appear in the current online edition of the European Journal of Epidemiology.
"Our estimates of risk for ambient exposure in the workplaces were actually greater than for exposure at residences," said Dr. Beate Ritz, senior author and a professor of epidemiology at the UCLA School of Public Health. "And, of course, people who both live and work near these fields experience the greatest PD risk. These workplace results give us independent confirmation of our earlier work that focused only on residences, and of the damage these chemicals are doing."
In addition, Ritz noted, this is the first study that provides strong evidence in humans that the combination of the three chemicals confers a greater risk of Parkinson's than exposure to the individual chemicals alone. Because these pesticides affect different mechanisms leading to cell death, they may act together to increase the risk of developing the disorder: Those exposed to all three experienced the greatest increase in risk.
"Our results suggest that pesticides affecting different cellular mechanisms that contribute to dopaminergic neuron death may act together to increase the risk of PD considerably," said Ritz, who holds a joint appointment in the UCLA Department of Neurology.
"This stuff drifts," Ritz said. "It's borne by the wind and can wind up on plants and animals, float into open doorways or kitchen windows -- up to several hundred meters from the fields."
"Infection of late middle-aged mice with a particular strain of the bacteria Helicobacter pylori results in development of Parkinson's disease symptoms after 3-5 months," says Traci Testerman of Louisiana State University Health Sciences Center, Shreveport, who presented the research. "Our findings suggest that H. pylori infection could play a signficant role in the development of Parkinson's disease in humans." Physicians have noted a correlation between stomach ulcers and Parkinson's disease as far back as the 1960s, before it was even known that H. pylori was the cause of ulcers. More recently, a number of studies found that people with Parkinson's disease were more likely to be infected with the bacterium, and that Parkinson's patients who were treated and cured of infection showed slight improvement compared to controls that continued to deteriorate.
Originally posted by v1rtu0s0
I think we need to ban these pesticides: ziram, maneb and paraquat.
We know that Parkinson's is a degenerative condition of the CNS specifically effecting the mid-brain (substantia nigra) which controls certain motor functions and behavoirs.
It seems to me that damage to this region of the brain whether it be from punches recieved in boxing (Muhammed Ali), or pesticide toxins destroying cells in this area of the brian can cause the condition.
So eating foods contaiminated with these pesticides is kind of like getting hit in the face.... literally.edit on 28-5-2011 by v1rtu0s0 because: (no reason given)