Quantcast
Health

Study Shows Pesticide Exposure Dramatically Increases Risk of Developing Parkinson’s Disease

Beyond Pesticides

New research published in the journal Neurology further supports the causative link between pesticide exposure and Parkinson’s disease. Emanuel Cereda, M.D., Ph.D., of the IRCCS University Hospital San Matteo Foundation in Pavia, Italy, and coauthor Gianni Pezzoli, M.D., analyzed 104 studies published between 1975 and 2011 to determine the link between pesticides and solvents to Parkinson’s disease.

The researchers analyzed exposure using information on proximity to large farms likely to use pesticides, likelihood of well water consumption and occupations that cause greater exposure to pesticides and solvents used to kill weeds, insects, fungus and rodents. Overall, researchers found exposure to pesticides increased the risk of developing the disease by 33 percent to 80 percent. Some pesticides were considered to be of higher risk than others, with weed killers like paraquat and fungicides maneb and mancozeb causing twice the risk for development of Parkinson’s disease. While risk increased the longer people were exposed to pesticides, researchers indicate there is still a need for further research on the chemical threshold for harm to the brain.

Photo courtesy of Shutterstock

The study builds on recent research that has linked Parkinson’s disease to pesticide exposure. In a 2011 article published in the journal Molecular Neurodegeneration, researchers at the University of Missouri School of Medicine invented a new antibody that allowed them to detect how oxidative stress affected proteins when exposed to a variety of environmental toxins, such as the pesticide rotenone. In another study, individuals with certain genetic factors who are exposed to organophosphates exhibited more than twice the risk of Parkinson’s disease compared to others without exposure. Another recent publication found that rural residents who drank contaminated well water had an increased risk—up to 90 percent—of developing Parkinson’s.

The research adds to the body of knowledge on the role of pesticide exposure in diseases like Parkinson’s. "I think the study is actually a big advance in our research knowledge of the relation between chemical exposures and the basic neurological injuries,” said Arch Carson, Ph.D., at the University of Texas School of Public Health in Houston, TX. “This report is the first to show that there is a positive relationship between not only insecticides and herbicides but also some other solvent chemicals to which many people are exposed and the development of Parkinson’s syndrome.”

The second most common neurodegenerative disease, Parkinson’s disease occurs when nerve cells in the substantia nigra region of the brain are damaged or destroyed and can no longer produce dopamine, a nerve-signaling molecule that helps control muscle movement. People with Parkinson’s have a variety of symptoms including loss of muscle control, trembling and lack of coordination. They may also experience anxiety, constipation, dementia, depression, urinary difficulties and sleep disturbances. Over time, symptoms intensify. At least 1 million Americans have Parkinson’s and about 50,000 new cases are diagnosed each year. With less than one percent of cases caused by genetics, researchers have been looking for the potential risk factors for developing Parkinson’s disease.

Visit EcoWatch’s HEALTH page for more related news on this topic.

Show Comments ()
Sponsored
GMO
Soy plants. Pixabay

Mexico Revokes Monsanto's Permit to Market GMO Soy in Seven States

Monsanto has lost its permit to commercialize genetically modified (GMO) soy in seven Mexican states, Reuters reported.

Mexico's agriculture sanitation authority SENASICA revoked the permit—a decision that the St. Louis-based seed giant called unjustified.

Keep reading... Show less
Renewable Energy
Puerto Rico National Guard / Flickr

This Brilliant Initiative Is Sending 100 Solar Trailers to Puerto Rico for Free

A remarkable collaborative effort to deploy portable solar energy systems to relieve critical areas in Puerto Rico is well underway.

The "Power On Puerto Rico" project from the Amicus Solar Cooperative, a nationwide solar energy cooperative, and Amurtel, an international disaster relief nonprofit, is sending 100 off-grid Solar Outreach Systems (SOS) to the storm-battered island.

Keep reading... Show less
Popular
Rebecca Gruby, CC BY-ND

To Succeed, Large Ocean Sanctuaries Need to Benefit Both Sea Life and People

By Rebecca Gruby, Lisa Campbell, Luke Fairbanks and Noella Gray

There is growing concern that the world's oceans are in crisis because of climate change, overfishing, pollution and other stresses. One response is creating marine protected areas, or ocean parks, to conserve sea life and key habitats that support it, such as coral reefs.

In 2000, marine protected areas covered just 0.7 percent of the world's oceans. Today 6.4 percent of the oceans are protected—about 9 million square miles. In 2010, 196 countries set a goal of protecting 10 percent of the world's oceans by 2020.

Keep reading... Show less
iStock

Geoengineering Could Create More Problems Than It Could Solve

By Tim Radford

Geoengineering—the untested technofix that would permit the continued use of fossil fuels—could create more problems than it could solve.

By masking sunlight with injections of sulphate aerosols in the stratosphere, nations could perhaps suppress some of the devastating hurricanes and typhoons that in a rapidly warming world threaten northern hemisphere cities. But they could also scorch the Sahel region of Africa, to threaten millions of lives and livelihoods, according to new research.

Keep reading... Show less
Sponsored
Renewable Energy
Tesla's massive Powerpack battery system in South Australia is charged by a nearby wind farm. Tesla

Tesla Finishes Building World's Largest Battery Month and a Half Ahead of Schedule

Elon Musk has won an audacious bet he made back in March to build a battery system for South Australia in “100 days from contract signature or it is free."

The 100-megawatt Powerpack system is the world's largest, or three times bigger than Tesla and Edison's battery at Mira Loma in Ontario, California.

Keep reading... Show less
Adventure

REI Urges Customers to #OptOutside on Black Friday

BY Connor McGuigan

REI will once again shutter its doors on Black Friday as part of its #OptOutside campaign, which encourages people to forgo bargain-hunting and spend America's busiest shopping day outside. The outdoor retailer will also suspend online sales and provide all 12,000 employees with a paid day off to enjoy the outdoors.

Keep reading... Show less
Sponsored

Blocked From Discussing Climate Change, Valve-Turner Faces 10 Years in Prison After Felony Conviction

By Julia Conley

After a judge refused to allow him to share his reasons for shutting off a tar sands pipeline valve in a protest of fossil fuel mining, 65-year-old climate activist Leonard Higgins was found guilty of criminal mischief—a felony—and misdemeanor criminal trespass. Higgins faces up to 10 years in jail and as much as $50,000 in fines.

"I'm happy for the opportunity to share why I had to shut down this pipeline, and I really appreciate the time and dedication of the jury and the judge," Higgins said. "I was disappointed and surprised by the verdict, but even more disappointed that I was not allowed a 'necessity defense,' and that I wasn't allowed to talk about climate change as it related to my state of mind. When I tried to talk about why I did what I did I was silenced. I'm looking forward to an appeal."

Keep reading... Show less
Climate
iStock

How to Talk to Your Relatives About Climate Change: A Guide for the Holidays

By Abigail Dillen

Most people who know me are too polite to question climate change when I'm around, but there are relatives and old family friends who hint at the great divide between their worldviews and mine. I think they sincerely believe that I would crush the economy forever if I had my way. On the other end of the spectrum are friends and family who are alarmed by climate and genuinely want to know what we and our elected officials can do about it. But no matter who's in the mix, it's hard to bring my work home for the holidays. Most of the time it feels easier to leave our existential crisis unmentioned.

Keep reading... Show less
Sponsored

mail-copy

The best of EcoWatch, right in your inbox. Sign up for our email newsletter!