Sweet Taste Receptors in Heart: New Pathway for Treating Heart Failure Uncovered
February 18, 2025
However, further studies are essential to investigate the long-term effects of activating these receptors and their potential as therapeutic targets for heart failure.
The stimulation of sweet taste receptors triggers a series of molecular events that involve proteins managing calcium flow and muscle contraction in heart cells.
This groundbreaking finding sheds light on the complex role of these receptors in cardiac regulation and their implications for heart health.
The increased levels of these receptors in heart failure patients highlight the need for more research into their role in heart disease.
Overall, the findings suggest a novel pathway for understanding heart function and potential new avenues for treatment.
Recent research presented at the 69th Biophysical Society Annual Meeting in Los Angeles has unveiled that the heart contains 'sweet taste' receptors, akin to those found on the tongue.
This research may also provide insights into the correlation between high consumption of artificial sweeteners and irregular heartbeats, known as arrhythmogenesis.
These receptors, known as TAS1R2 and TAS1R3, were discovered on heart muscle cells and are functional, responding to sweet substances such as aspartame.
Stimulation of these receptors has been shown to enhance contraction strength and improve calcium handling in both human and mouse heart cells, which is crucial for maintaining a healthy heartbeat.
Micah Yoder from Loyola University Chicago indicated that spikes in blood sugar after meals could activate these heart receptors, potentially influencing heart rate and blood pressure.
Interestingly, the study found that these receptors were more prevalent in patients with heart failure, suggesting a possible link between receptor activity and cardiac disease.
Yoder noted that during heart failure, the heart may alter its energy management, which could necessitate changes in nutrient sensing due to increased glucose usage.
Summary based on 2 sources
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Sources

ScienceDaily • Feb 17, 2025
Sweet taste receptors in the heart: A new pathway for cardiac regulation
Medical Xpress • Feb 17, 2025
Sweet taste receptors in the heart: A new pathway for cardiac regulation