Plastic pollution may be reaching the heart through the bloodstream
By European Society of Cardiology
In a study published in the European Heart Journal, researchers detected microplastics and nanoplastics in the coronary blood of 84% of patients who had experienced a serious heart attack. That compared with 40% of patients with chronic ischemic heart disease and 32% of those whose coronary arteries appeared normal.
The heart attack group also had a wider variety of plastics
in their blood. Polyethylene, one of the world’s most widely used plastics and
a common ingredient in packaging and consumer products, was the material found
most often.
Although the results do not show that plastic particles
trigger heart attacks, they add to concerns that pollution may be connected
to cardiovascular disease through inflammation, lung exposure, and
damage to blood vessels.
How Microplastics Enter the Human Body
“Micro and nanoplastics are tiny plastic particles that are
found virtually everywhere in the environment, including the air we breathe,
the water we drink, and many foods we consume,” said first author Dr. Pasquale
Paolisso of Sant’Andrea Hospital at Sapienza University of Rome, Italy. “In
recent years, scientists have begun to detect these particles in human tissues
and organs, raising concerns about their potential health effects.”
“However, very little was known about whether these
particles are present in the coronary circulation, the blood flowing through
the arteries that supply the heart, or whether environmental exposures such as
smoking and air pollution might influence their presence.”
Microplastics generally measure less than 5 millimeters (0.2
inches), while nanoplastics can be small enough to interact with cells and
biological tissues. Scientists have already reported plastic particles in human
blood, lungs, placenta, and breast milk, but their long-term health effects
remain uncertain.














