Kibret Enyew Belay, Rebil Heiru Jemal, Aloys Tuyizere
Journal of the Endocrine Society, Volume 8, Issue 12, December 2024, bvae197
https://doi.org/10.1210/jendso/bvae197
Obesity poses a significant global health challenge, with an alarming rise in prevalence rates. Traditional interventions, including lifestyle modifications, often fall short of achieving sustainable weight loss, ultimately leading to surgical interventions, which carry a significant burden and side effects. This necessitates the exploration of effective and relatively tolerable pharmacological alternatives. Among emerging therapeutic avenues, glucagon-based treatments have garnered attention for their potential to modulate metabolic pathways and regulate appetite. This paper discusses current research on the physiological mechanisms underlying obesity and the role of glucagon in energy homeostasis. Glucagon, traditionally recognized for its glycemic control functions, has emerged as a promising target for obesity management due to its multifaceted effects on metabolism, appetite regulation, and energy expenditure. This review focuses on the pharmacological landscape, encompassing single and dual agonist therapies targeting glucagon receptors (GcgRs), glucagon-like peptide-1 receptors (GLP-1Rs), glucose-dependent insulinotropic polypeptide receptors (GIPRs), amylin, triiodothyronine, fibroblast growth factor 21, and peptide tyrosine tyrosine. Moreover, novel triple-agonist therapies that simultaneously target GLP-1R, GIPR, and GcgR show promise in augmenting further metabolic benefits. This review paper tries to summarize key findings from preclinical and clinical studies, elucidating the mechanisms of action, safety profiles, and therapeutic potential of glucagon-based therapies in combating obesity and its comorbidities. Additionally, it explores ongoing research endeavors, including phase III trials, aimed at further validating the efficacy and safety of these innovative treatment modalities.
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