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GLP-1 receptors exist on immune cells, and receptor activation appears to modulate inflammatory pathways
Most of the longevity data comes from animal studies, laboratory models, or small observational research from a limited group of investigators
Why Researchers Study It for Muscle Growth IGF-1 LR3 is the most directly anabolic peptide studied in this context because it activates the IGF-1 receptor (IGF1R) on muscle cells
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