NA-Selank-Amidate

NA-Selank-Amidate is a stability-enhanced variant of the anxiolytic-nootropic peptide Selank, featuring both N-terminal acetylation and C-terminal amidation modifications. These dual modifications protect against exopeptidase degradation, potentially resulting in extended duration of action and improved bioavailability.

The parent compound Selank is a tuftsin-derived heptapeptide with well-documented anxiolytic and cognitive-enhancing properties. It modulates GABA signaling to produce benzodiazepine-like anxiety reduction without sedation or dependence, while simultaneously enhancing memory and attention through separate neurotrophic mechanisms.

By increasing metabolic stability, NA-Selank-Amidate may achieve more sustained anxiolytic and cognitive effects, particularly relevant for applications requiring extended duration of action. The modifications are positioned to protect the most vulnerable sites for enzymatic attack while preserving the core sequence responsible for biological activity.

This modified form is of particular interest for research into stress resilience, where prolonged anxiolytic support combined with cognitive enhancement may provide comprehensive benefits. The combination of Selank's unique dual mechanism (anxiolytic plus nootropic) with enhanced stability creates a valuable research tool for psychoneuroimmunology and cognitive neuroscience applications.