Esther Landhuis from NPR covering the discovery of a new path between the brain and the immune system explains that it may potentially lead to new heart attack treatments protocol. The new study was conducted by the University of California San Diego researchers and has been published in the journal Cell.
Landhuis explains that researchers have long studied neuroimmune crosstalk, with a focus on how the vagus nerve controls inflammation. Research also highlights links between the nervous, immune, and cardiovascular systems, including a rise in sudden cardiac deaths during stressful events.
In 2000, scientists at the Feinstein Institutes for Medical Research in Long Island, New York found that stimulating the vagus nerve can reduce inflammation. This approach later received FDA approval in 2023 as a treatment for rheumatoid arthritis.
Dr. Kalyanam Shivkumar, a cardiac electrophysiologist at UCLA, told NPR, “The brain says, hey, get up and run, you’re going to die.” He explains that while fight or flight signals help in emergencies, over time they can drive inflammation and heart problems. “And then the heart swells up. You get arrhythmias and heart failure,” he added.
Landhuis notes that UC San Diego research explores how the brain communicates with the heart, focusing on the vagus nerve and its role in heart attacks. The study looks at whether blocking certain signals in this pathway could reduce damage.
Researchers found that blocking TRPV1 nerve cells, which carry signals from the heart to the hypothalamus, improved heart function and reduced inflammation in mice. This points to a potential new treatment target.
Neuroimmunologist Cameron McAlpine says these findings add to evidence that heart attacks affect both the immune and nervous systems. While mouse studies are still early, approaches like vagus nerve stimulation may prove useful with further research.
Vineet Augustine, the study’s lead neuroscientist at the UCSD, told NPR that future work will examine how the heart, brain, and immune system interact. Researchers will study how nerve cells sense changes and communicate with heart cells, highlighting the complexity of these connections.
Dr. Shivkumar explaining the emerging theme told NPR, “The message people should get is, oh my God, these scientists are doing something very exciting. But literally we are building on ancient knowledge. Research on stimulating the vagus nerve supports what the Buddha said: meditate. I call it Zen cardiology.”
Acknowledgement: This summary was generated using AI writing tools as part of my AI Explorations process. For more information, please refer to the original article listed below.