Microscopic particles flowing in the air as we breathe come from sources such as fossil fuels burning, fires, cigarettes and…
Microscopic particles flowing in the air as we breathe come from sources such as fossil fuels burning, fires, cigarettes and vehicles. Known as a fine particulate substance, this form of air pollution increases the risk of cardiovascular and other serious health problems.
“Despite improvements in air quality over the United States in recent decades, more than 88,000 deaths per year occur in the United States due to finely divided air pollution exposure,” said Robert Brook, MD, a cardiovascular specialist at the University of Michigan’s Frankel Cardiovascular Center .
Now researchers have found that a cheap portable air cleaner used inside a home is powerful enough to round up a large proportion of these smaller particles and get them out of the indoor air ̵
1; a simple move that protects the heart.
A new study published in JAMA Internal Medicine found three days after using a cheap air purifier at home significantly reduced the inconvenience of urban partners’ fine particles. It also significantly lowered blood pressure, which is the main cause of morbidity and mortality all over the world.
“The results show that a simple practical intervention with low-cost air filter filters can help protect individuals from the harmful health effects of particulate air pollutants,” said Brook, the lead author of the study.
He conducted research with colleagues from the University of Michigan and Michigan State University, including first author Masako Morishita, Ph.D., MSU.  Improved indoor air
As the nation’s population spends almost 90 percent of the time indoors, researchers focused on exposure to pollution while people are at home.
Instead of going to a highway or factory, or even a park, Brook and his colleagues took their air pollution fight into living rooms and bedrooms in low-priced homes in Detroit.
Forty elderly parties pated in this randomized, double-blind study between autumn 2014 and autumn 2016. Ninety-five percent of participants were black; all were non-smokers.
Each person experienced three different three-day scenarios: an air filter (an air filtration system without filter), an efficient air purifier system and a highly efficient air purifier system.
The participants went through their normal activities during the study time and were allowed to open windows and go out as often as they wanted. Blood pressure was measured daily and participants had personal air monitors to determine their personal air pollution exposure.
The researchers focused on reduced air pollutant exposure and lowered blood pressure over a three-day period as an indication of the portable air filters “Potential to be cardiac protection.”
As a result, Brook states that fine particle exposure was reduced by 40 percent and systolic blood pressure decreased by an average of 3.4mm Hg (normal systolic blood pressure is considered to be less than 120mm Hg, stage 1 hypertension begins at 130 and step 2 at 140) .
“The benefits were even more marked in obese individuals who had 6 to 10 mm Hg reduction in systolic blood pressure,” said Brook, also a professor of Internal Medicine at UM Medical School.
And even a small investment could reap huge benefits: High-efficiency air purifiers reduced polluting exposure to a greater extent, but they did not lower people’s blood pressure surely more than low-performance air purifiers, which are widely available for less than $ 70.
A relative model
Existing research has investigated the cardiovascular and metabolomic effects of air pollution in heavily polluted areas, Brook also reports that there is an important new consideration: it was carried out in a much cleaner environment that already met existing air quality standards for fine particles, but still showed the potential to reduce exposure.
“At the time of the Detroit study, outdoor fine particles were on average 9 micrograms per cubic meter, which is within the national climate quality standards,” adds Brook. “This strongly supports the fact that even more improvements in air quality may be even more protective for public health.”
JAMA Internal Medicine The paper differs further from previous studies by focusing on older and low income
Researcher, Brook said, wanted to explore preventive strategies in everyday situations where aging adults already handle other health conditions and may be on medications.
Nearly half of the participants in the small study met the criteria for obesity – and their average blood pressure would be classified as hypertensive according to the 2017 American Heart Association / American College of Cardiology Guideline.
It is also the first known contamination and heart health budget to focus on a third-party combination of low blood pressure -income seniors, a city environment in the United States and personal exposures for fine particulate matter.
Despite the results In the small study, more research is required.
“It is premature to recommend that our patients purchase indoor air filters to prevent heart disease,” said Brook.
His team plans to test the approach in several different populations to learn about personal reductions of fine particles exposure will lead to fewer heart attacks and other negative results associated with high blood pressure.
Brook says that future research must also study the effectiveness of the intervention to see if the reduced blood pressure will stay below longer periods of time and result in fewer cardiovascular events.
Currently available epidemiological estimates predict approximately 16 percent decrease in cardiovascular disease if a 3.2mm Hg reduction in systolic blood pressure is maintained for a period of months to year, author listing.
“Meanwhile, clinics and medical communities will play an active role in supporting clean air rules in the efforts to improve the health of their patients and families,” said Brook.
https: //labblog.uofmhealth. org / lab report / portable-air-filters-may-reduce-cardiovascular-type av air pollution