It is a physician-directed complement to thoughtful nutrition, training, and broader longevity protocols
Lesions of dopamine nigral neurons not only result in depression-like behavior (in the substantia nigra pars compacta) but also lead to a cascade of functional modifications on the activity of basal ganglia circuits, with the dysregulation of the glutamate system.12,13 This pathophysiological mechanism is also shared with Parkinson's disease, with the destabilization of the brain reward mechanism being linked to an increased risk of DE relapse.14 Note, the higher frequency of cardiovascular disorders than in other patients is also associated with the decrease in the activity of GDH, the glutamate-metabolizing enzyme
Many patients discontinue GLP-1 medications due to cost or side effects like nausea and fatigue
The branding makes this more confusing than it needs to be, so here is how the names actually sort out
That said, it's important to remember that retatrutide is not yet available to the public
GIP receptors are found in blood vessel walls and appear to promote vasodilation