Link found between environmental toxins and stroke

July 18, 2012, Uppsala University

(Medical Xpress) -- Individuals with elevated levels of PCBs and DDT in their blood run a greater risk of having a stroke. This is shown in a study from Uppsala University that is being published today in the scientific journal Environmental International.

"This is the first study to assess whether there is a correlation between elevated levels of organic and stroke, and the results are clear," says Lars Lind, professor of at Uppsala University, who performed the study together with Monica Lind, associate professor of .

They have previously shown that elevated levels of PCBs, and to some extent pesticides, in the blood are related to atherosclerosis of the carotid artery (link to earlier press release). The findings are based on a study comprising some 1,000 seniors in Uppsala. Since atherosclerosis of the is an important risk factor for stroke, the researchers have conducted another analysis in which the same group was followed for five years to investigate whether a correlation could be found between PCBs and stroke.

A total of 35 individuals experienced a stroke during these five years. Those who had elevated levels of PCBs in their blood had roughly twice the risk of having a stroke compared with those with low levels, even after factoring in the effect of traditional for stroke, such as , diabetes, and overweight. Those who had elevated levels of pesticides, such as DDT, had roughly twice the risk of experiencing a stroke in the future.

PCBs and DDT are banned in Sweden and many other countries today, but since they are persistent, they are still prevalent in the environment. They can be ingested and stored in our bodies through the food we eat.

The study, which was carried out in collaboration with colleagues from Örebro University in Sweden, Norway, the US, and Korea, was funded by, among others, the Swedish Research Council Formas and the Swedish Research Council.

Explore further: Link shown between environmental toxicants and atherosclerosis

More information: Link to the study on the journal website: www.sciencedirect.com/science/ … ii/S0160412012001365

Related Stories

Link shown between environmental toxicants and atherosclerosis

October 11, 2011
Environmental toxicants such as dioxins, PCBs, and pesticides can pose a risk for cardiovascular disease. For the first time a link has been demonstrated between atherosclerosis and levels of long-lived organic environmental ...

High levels of phthalates can lead to greater risk for type-2 diabetes

April 12, 2012
There is a connection between phthalates found in cosmetics and plastics and the risk of developing diabetes among seniors. Even at a modest increase in circulating phthalate levels, the risk of diabetes is doubled. This ...

High levels of phthalates can lead to greater risk for diabetes

April 23, 2012
(Medical Xpress) -- There is a connection between phthalates found in cosmetics and plastics and the risk of developing diabetes among seniors. Even at a modest increase in circulating phthalate levels, the risk of diabetes ...

PCB can increase risk of abdominal fat

May 29, 2012
(Medical Xpress) -- There is a correlation between high levels of the environmental toxin PCB and the distribution of body fat to the abdomen. This is shown in a new study published today in the scientific journal Obesity. ...

Recommended for you

A nanoparticle inhalant for treating heart disease

January 18, 2018
A team of researchers from Italy and Germany has developed a nanoparticle inhalant for treating people suffering from heart disease. In their paper published in the journal Science Translational Medicine, the group describes ...

Starting periods before age of 12 linked to heightened risk of heart disease and stroke

January 15, 2018
Starting periods early—before the age of 12—is linked to a heightened risk of heart disease and stroke in later life, suggests an analysis of data from the UK Biobank study, published online in the journal Heart.

'Decorated' stem cells could offer targeted heart repair

January 10, 2018
Although cardiac stem cell therapy is a promising treatment for heart attack patients, directing the cells to the site of an injury - and getting them to stay there - remains challenging. In a new pilot study using an animal ...

Two simple tests could help to pinpoint cause of stroke

January 10, 2018
Detecting the cause of the deadliest form of stroke could be improved by a simple blood test added alongside a routine brain scan, research suggests.

Exercise is good for the heart, high blood pressure is bad—researchers find out why

January 10, 2018
When the heart is put under stress during exercise, it is considered healthy. Yet stress due to high blood pressure is bad for the heart. Why? And is this always the case? Researchers of the German Centre for Cardiovascular ...

Heart-muscle patches made with human cells improve heart attack recovery

January 10, 2018
Large, human cardiac-muscle patches created in the lab have been tested, for the first time, on large animals in a heart attack model. This clinically relevant approach showed that the patches significantly improved recovery ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.