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Critical Insights into LEAP2 Biology and Physiological Functions: Potential Roles Beyond Ghrelin Antagonism.
Endocrinology
January 2025
Grupo de Neurofisiología- Instituto Multidisciplinario de Biología Celular (IMBICE) (Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad de La Plata, Comisión de Investigaciones Científicas de la Provincia de Buenos Aires), La Plata, Argentina.
Liver-expressed antimicrobial peptide 2 (LEAP2) has recently emerged as a novel hormone that reduces food intake and glycemia by acting through the growth hormone secretagogue receptor (GHSR), also known as the ghrelin receptor. This discovery has led to a fundamental reconceptualization of GHSR's functional dynamics, now understood to be under a dual and opposing regulation. LEAP2 exhibits several distinctive features.
View Article and Find Full Text PDFDecoding the role of ghrelin and its interactions with central signaling pathways in avian appetite regulation.
Vet Res Commun
January 2025
Department of Biology, Faculty of Basic Science, Central Tehran Branch, Islamic Azad University, Tehran, Iran.
Ghrelin, a peptide hormone primarily produced in the enteroendocrine cells of the gastrointestinal tract, plays a vital role in regulating food intake, and energy balance in avian species. This review examines the complex interactions between ghrelin and the central signaling pathways associated with hunger regulation in birds. In contrast to mammals, where ghrelin typically promotes feeding behavior, its effects in birds appear more nuanced, exhibiting anorexigenic properties under certain conditions.
View Article and Find Full Text PDFPolycystic Ovary Syndrome and Eating Disorders-A Literature Review.
J Clin Med
December 2024
Clinical Department of Gynecologic Surgery and Oncology, Wroclaw Medical University, Borowska 213, 50-556 Wroclaw, Poland.
Polycystic ovary syndrome (PCOS) is a complex endocrine disorder that affects women of reproductive age and is characterized by hyperandrogenism, ovulatory dysfunction and polycystic ovarian morphology. PCOS is often associated with hormonal imbalances, metabolic dysfunction and comorbid psychiatric disorders, including eating disorders (EDs). The review identifies key hormonal factors-serotonin, leptin, insulin, ghrelin, kisspeptin and cortisol-and their roles in the pathophysiology of PCOS and associated psychiatric symptoms.
View Article and Find Full Text PDFGhrelin Promotes Lipid Uptake into White Adipose Tissue via Endothelial Growth Hormone Secretagogue-Receptor in Mice.
Nutrients
December 2024
Division of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Keio University School of Medicine, Shinjuku-ku, Tokyo 160-8582, Japan.
: Endothelial peroxisome proliferator-activated receptor gamma (PPARγ) regulates adipose tissue by facilitating lipid uptake into white adipocytes, but the role of endothelial lipid transport in systemic energy balance remains unclear. Ghrelin conveys nutritional information through the central nervous system and increases adiposity, while deficiency in its receptor, growth hormone secretagogue-receptor (GHSR), suppresses adiposity on a high-fat diet. This study aims to examine the effect of ghrelin/GHSR signaling in the endothelium on lipid metabolism.
View Article and Find Full Text PDFLEAP2 in Physiology-A Narrative Review.
Int J Mol Sci
January 2025
Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, Wolynska 35 Street, 60-637 Poznan, Poland.
Liver Enriched Antimicrobial Peptide 2 (LEAP2) is a fascinating peptide that has gained significant attention since its discovery in 2003. Initially identified as an antimicrobial peptide, LEAP2 has more recently been found to play a key role in the regulation of energy metabolism. One of the most notable functions of LEAP2 is its interaction with the ghrelin hormone, which is known for stimulating hunger.
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