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Many studies suggest that small, polar molecules may be able to bypass the bloodbrain barrier with nasal delivery, as the interface between the nasal cavity and brain is considered a potential point of vulnerability in the bloodbrain barrier

Ipamorelin: Investigational, Development Discontinued Ipamorelins evidence is characterization plus a failed clinical program

doi: 10.1186/s11658-022-00309-9 135 LiuJChenSWangWNingB-FChenFShenWet al

-glutamyl-cysteinyl-glycine) is a low molecular weight, water soluble thiol compound that is distributed widely in most plant tissues

Statistical analysis Statistical analysis was performed in GraphPad Prism