Inflammation is one of the body’s natural defenses. When you get a cut or catch an infection, your immune system creates short-term inflammation to help you heal.
Normally, this process ends once the problem is gone.
However, when inflammation continues for months or years, it becomes chronic inflammation, which can slowly damage healthy tissues throughout the body.
Long-lasting inflammation has been linked to many serious diseases, including Alzheimer’s disease, Parkinson’s disease, type 2 diabetes, cancer, and multiple sclerosis. Scientists believe it also plays an important role in aging.
Because of this, researchers have been searching for ways to safely stop harmful inflammation without weakening the body’s ability to fight infections.
A team of researchers at the University of California, Berkeley, led by Professor Danica Chen, has now uncovered an important clue.
Their study, published in the journal Cell Metabolism, identified a natural molecular process that acts like an off switch for harmful inflammation. The discovery could eventually lead to new medicines that target the root cause of many age-related diseases.
The researchers focused on a group of immune proteins called the NLRP3 inflammasome. This protein complex acts like an alarm system inside the body.
It detects infections, injuries, and other dangers, then triggers inflammation to help protect the body. Problems begin when this alarm does not switch off after the threat has disappeared.
When the NLRP3 inflammasome stays active for too long, it keeps sending signals that produce unnecessary inflammation. Over time, this can damage healthy organs and tissues. Previous research has linked this overactive immune response to several chronic diseases, making it an important target for new treatments.
The Berkeley team discovered that the inflammasome can be turned off through a natural process called deacetylation. During this process, a small chemical group is removed from the inflammasome, causing it to stop sending inflammatory signals. A protein called SIRT2 carries out this job and works like a natural brake on the immune system.
To test their discovery, the scientists studied mice. Animals that lacked the SIRT2 protein developed much higher levels of inflammation as they grew older. By two years of age, these mice also had worse insulin resistance, which is an early warning sign for type 2 diabetes and other metabolic diseases.
In another experiment, the researchers rebuilt the immune systems of older mice using blood stem cells that produced either an active or inactive form of the inflammasome. Within only six weeks, mice with the inactive version showed clear improvements in insulin resistance. This suggests that reducing harmful inflammation may not only prevent disease but could also reverse some health problems.
The findings raise hope that future medicines could target this natural off switch to treat diseases linked to chronic inflammation. Such treatments might work best when started early, before permanent damage occurs. This could be especially valuable for conditions like Alzheimer’s disease, where treatments often begin after brain damage has already developed.
The researchers also note that everyday habits remain important because diet, physical activity, stress, and environmental exposures can all influence inflammation. While more research is needed before this discovery leads to new medicines, the study provides an exciting new direction for preventing and treating chronic diseases by controlling inflammation at its source.
If you care about inflammation, please read studies about turmeric: nature’s golden answer to inflammation, and what to eat to reduce chronic Inflammation.
For more health information, please see recent studies about how a plant-based diet could help ease inflammation ,and Vitamin D deficiency linked to increased inflammation.
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