Insulin and insulin-like growth factors I and II (IGF-I and IGF-II) are critical for neuronal and glial growth, metabolic regulation, survival, gene expression, protein synthesis, neurotransmitter network modulation, and synaptic function.115 Cerebral insulin resistance may arise from the downregulation of insulin transport across the blood-brain barrier secondary to chronic peripheral hyperinsulinemia and systemic insulin resistance116 as well as from the loss of neuronal membrane insulin receptors induced by soluble amyloid-beta (A) oligomers.117 Impaired insulin signaling in the brain leads to increased activity of glycogen synthase kinase 3 beta, an enzyme implicated in enhanced A production and tau protein hyperphosphorylation.118 Furthermore, cerebral hyperinsulinemia is associated with diminished clearance of A peptides due to the competitive inhibition of insulin-degrading enzyme, a metalloprotease responsible for degrading both insulin and A, which preferentially binds insulin over A under hyperinsulinemic conditions.119 The neuroprotective properties of GLP-1RAs have been substantiated in vivo, supported by their ability to traverse the blood-brain barrier and the presence of GLP-1 receptors within the brain
Also targeted by Zepbound
Officials declined to say if semaglutide would be a selected drug under the drug price negotiation program through the Inflation Reduction Act
They can advise on which drug may work best for you and not interact with other meds youre taking
Besides the action of the GLP-1R agonist (GLP-1RA) on the brainadipocyte axis, there is also recent evidence that its direct action (independent of its CNS actions) in the white adipose tissue induces browning and enhances the lipolytic capacity and mitochondrial biogenesis [8]
