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AED Peptide: Mechanism Comparison

Primary Target Voltage-gated calcium channels + neurofilament stabilization NMDA receptor blockade Direct calpain enzyme inhibition Cytokine signaling pathways AED peptide offers dual-target neuroprotection without blocking physiological neurotransmission. NMD

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  • Primary Target
  • Voltage-gated calcium channels + neurofilament stabilization
  • NMDA receptor blockade
  • Direct calpain enzyme inhibition
  • Cytokine signaling pathways
  • AED peptide offers dual-target neuroprotection without blocking physiological neurotransmission. NMDA antagonists risk impairing normal synaptic plasticity
  • Therapeutic Window
  • 3–6 hours post-injury (optimal), up to 12 hours (reduced efficacy)
  • 0–3 hours post-injury
  • 0–6 hours post-injury
  • 6–48 hours post-injury
  • AED peptide's window aligns with emergency department timelines for stroke or TBI. Later than thrombolytics but earlier than anti-inflammatory interventions
  • Blood-Brain Barrier Penetration
  • Moderate (5–15% of systemic dose). Enhanced by carrier peptides or intranasal delivery
  • High (>70% penetration)
  • Low (<5% without modification)
  • Variable (10–40% depending on molecular weight)
  • BBB penetration is AED peptide's primary limitation. Most research uses direct CNS delivery (ICV or intrathecal) rather than systemic dosing
  • Demyelination Protection
  • Direct oligodendrocyte protection + myelin preservation
  • Minimal. Primarily neuronal protection
  • Minimal. Axonal focus only
  • Indirect via reduced inflammatory damage
  • AED peptide is one of few neuroprotective agents with direct myelin-sparing effects, making it relevant for MS and leukodystrophy research
  • Cytoskeletal Preservation
  • Direct NF-L/NF-M stabilization. Blocks calpain cleavage sites
  • None
  • Indirect via calpain inhibition
  • AED peptide's cytoskeletal stabilization is mechanism-unique. Most neuroprotectants reduce calcium influx but don't prevent cytoskeletal breakdown once calcium elevation occurs

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