Predicted physicochemical properties of dihexa Download Table Brain peptides in Alzheimer's disease pathophysiology and therapeutic advances Cell and Tissue Research Springer Nature Link The Hydrophobic Effects: Our Current Understanding Dihexa (also known as PNB 0408) is an experimental small molecule derived from angiotensin IV. It was engineered to cross the bloodbrain barrier and has shown synaptogenic effects in preclinical models. The often quoted What if neuroplasticity research targeted the HGF c Met pathway? Dihexa (PNB 0408) is an angiotensin IVderived peptide studied in preclinical models for its role in synaptogenesis and cognitive signaling mechanisms. Human data remains limited. Predicted physicochemical properties of dihexa Download Table