It’s important to note that non-alcoholic fatty liver disease (NAFLD) is on the rise. This means people are developing sick livers without even consuming excess amounts of alcohol.
There are many contributing factors that can lead to an unhealthy liver, such as sugar consumption, being overweight and alcohol consumption, but the latest research suggests the very air we breathe could also be poisoning our livers.
Air pollution linked with liver disease
Previous research on PM2.5 revealed that it was linked with metabolic disease, liver cancer and fibrosis.
Numerous studies have focused on air pollution and lung health, but researchers have theorized that it could be detrimental to the liver as well. The liver can become affected by air pollution because it is the body’s detoxification center.
PM2.5 is a mixture of diesel and gasoline from engines, road dust, tires and brakes. PM2.5 is the most abundant form of air pollution in urban areas.
The research was conducted in Detroit, which is ranked as the city with the highest readings of PM2.5.
Animal models were exposed to PM2.5 in real life scenarios over the course of 10 weeks. The researchers found the animals developed fibrosis, and the stress response triggered by PM2.5 caused inflammation.
Research lead, Kezhong Zhang, Ph.D., said, “Our work has a major impact on medical care and health policymaking for the populations under air pollution environment. Liver fibrosis is an advanced stage of chronic liver injuries caused by chronic hepatitis viral infection, obesity, alcoholism, or autoimmune diseases. Our work defined that air pollution, specifically PM2.5 pollutant, is an independent risk factor of liver fibrosis. This is very significant in terms of identifying new health risk factors and understanding liver diseases. The molecular and cellular mechanisms we revealed in this work have very important implications in clinical disease diagnosis and treatment associated with air pollution.”
The researcher’s advice is for those who endure daily traffic to pay close attention to liver biomarkers and enzymes, which could indicate liver disease.
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