By Steven Reinberg
MONDAY, December 30, 2019 (HealthDay News) – A recent study suggests that people with high levels of a common insecticide in their system are much more vulnerable to heart disease.
According to Wei Bao, assistant professor of epidemiology at the University of Iowa College of Public Health, and his colleagues, people who have been exposed to pyrethroid insecticides are three times more likely to die of cardiovascular disease than those with low or no exposition.
However, the findings do not prove that the pyrethroid causes deaths from heart disease, only that there is an association between the two, the study authors warned.
Pyrethroid insecticides make up the majority of commercial household insecticides, the researchers noted. They are found in many brands of insecticides, and are used in agriculture, public spaces and homes for pest control.
Pyrethroid forms, such as 3-phenoxybenzoic acid, can be found in the urine of people exposed to the chemical.
For the new study, Bao's team analyzed pyrethroid levels in urine samples from more than 2,000 adults 20 years of age or older who participated in the US National Survey of Health and Nutrition Exam. UU. Between 1999 and 2002. They then verified these participants with death records.
The researchers found that, on an average of 14 years, people who had the highest levels of pyrethroids in the urine were 56% more likely to die for any reason by 2015 than those with the lowest levels of pyrethroids, and Heart disease was a leading cause of death.
Although researchers could not tell how people were exposed to pyrethroids, studies have shown that most of the exposure comes from food, such as fruits and vegetables sprayed with the chemical.
Domestic use of pyrethroids in gardens and for pest control is also an important source of exposure, the study authors said in a university press release. In addition, the chemical is found in dust in homes that use these pesticides.
The use of pyrethroids has grown since the time of the study, so the rate of related deaths has also increased, the researchers said.
The report was published online on December 30 in JAMA Internal Medicine.