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New research suggests breathing-linked brain activity behind high blood pressure
Disabling the region in rats reduced blood pressure to normal levels
A new study has uncovered a potential link between high blood pressure and brain activity associated with breathing, offering fresh insight into one of the world’s most common health conditions.
Researchers from the University of São Paulo and the University of Auckland found that a specific brain region known as the lateral parafacial (pFL) area may play a significant role in the development of Hypertension.
The pFL region is typically activated during forceful breathing, such as coughing, laughing, or intense physical activity.
However, scientists discovered that its role may extend beyond respiration.
In experiments conducted on rats, stimulating this area not only altered breathing patterns but also caused blood vessels to constrict, a key factor in elevated blood pressure.
The findings suggest that neurons in the pFL region may connect breathing activity with the body’s Fight-or-Flight Response, which regulates heart rate and blood pressure.
This connection could help explain why some patients continue to experience hypertension despite medication.
In a significant breakthrough, researchers also found that disabling the pFL region in hypertensive rats reduced blood pressure to normal levels, pointing to a possible new pathway for treatment.
The study may also shed light on the relationship between sleep-related breathing disorders and high blood pressure.
Conditions like Sleep Apnea, which involve reduced oxygen levels, could activate the same brain region, further contributing to hypertension.
While the research is currently based on animal models, scientists say it opens up promising directions for future therapies.
One potential approach includes targeting carotid body sensors to regulate brain activity indirectly, without interfering with the brain itself.
Experts caution that further research is needed in humans, but the findings mark a step forward in understanding the complex biological mechanisms behind high blood pressure.
