PT-141, a synthetic peptide analogue of α-MSH, is primarily investigated for its effects on sexual dysfunction. Unlike PDE5 inhibitors that target the vascular system, PT-141 acts as a non-selective agonist of melanocortin receptors (MC1R through MC5R). It specifically targets the central nervous system to modulate neural pathways associated with sexual desire and arousal, highlighting its distinct mechanism that underscores its potential significance in sexual health research.
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