Small molecule activation of the neurotrophin hepatocyte growth factor to treat Alzheimer disease Dihexa 10 MG NewHope Wellness Advisors Reduced neurogenesis in human hippocampus with Alzheimer's disease Cao 2024 Brain Pathology Wiley Online Library Vitamin D deficiency as a potential risk factor for accelerated aging, impaired hippocampal neurogenesis and cognitive decline: a role for Wnt β catenin signaling Aging Current understanding of adult neurogenesis in the mammalian brain: how does adult neurogenesis decrease with age? Inflammation and Regeneration Springer Nature Link 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