The prevailing model held that these drugs act directly on GLP-1 receptors in the brain, while our study provides evidence for an alternative pathway. For this study, the researchers used the weight-loss drug liraglutide, marketed under the brand names Victoza and Saxenda
The complete peptide list catalogs every major peptide currently in research use, and the injectable peptides list focuses specifically on peptides that require the reconstitution skills covered in this guide
In STEP-UP, dysaesthesia was reported in 21.6% of patients treated with semaglutide 7.2 mg compared with 0.3% on placebo
Another key issue in this line of research is the pharmacokinetic properties of LIR in rats, including absolute bioavailability and brain penetration, as well as typical side effects of the GLP-1 receptor agonist class, such as nausea
FDA approves Wegovy for cardiovascular risk reduction
These findings are part of a preliminary study recently shared at ENDO 2025, the Endocrine Societys annual conference in San Francisco, Calif