Implications of neurogenesis in depression through BDNF: rodent models, regulatory pathways, gut microbiota, and potential therapy Molecular Psychiatry 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 Compensation for Neurodegeneration by Hippocampal Neurogenesis in Alzheimer's Disease: Where is the Way? Neuroscience Bulletin Springer Nature Link Dihexa Research Grade Neurotrophic Molecule 20 mg PRG Protective Mechanism and Treatment of Neurogenesis in Cerebral Ischemia Neurochemical Research Springer Nature Link The Role of Neurogenesis in Neurodegenerative Diseases: Mechanisms and Interventions ScienceDirect