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HCAR1

Meaning

HCAR1, which stands for Hydroxycarboxylic Acid Receptor 1, is a specific G protein-coupled receptor primarily known for being the high-affinity receptor for lactate, the key end product of anaerobic glycolysis. This receptor is significantly expressed in various tissues, including adipose tissue, and its activation plays a critical role in systemic metabolic regulation, particularly by potently inhibiting lipolysis, or the breakdown of fat. Understanding HCAR1 signaling is critical for optimizing metabolic health and body composition strategies in a clinical setting.