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Aims: To investigate the effect of kisspeptin on glucose-stimulated insulin secretion and appetite in humans.
Materials And Methods: In 15 healthy men (age: 25.2 ± 1.1 years; BMI: 22.3 ± 0.5 kg m ), we compared the effects of 1 nmol kg h kisspeptin versus vehicle administration on glucose-stimulated insulin secretion, metabolites, gut hormones, appetite and food intake. In addition, we assessed the effect of kisspeptin on glucose-stimulated insulin secretion in vitro in human pancreatic islets and a human β-cell line (EndoC-βH1 cells).
Results: Kisspeptin administration to healthy men enhanced insulin secretion following an intravenous glucose load, and modulated serum metabolites. In keeping with this, kisspeptin increased glucose-stimulated insulin secretion from human islets and a human pancreatic cell line in vitro. In addition, kisspeptin administration did not alter gut hormones, appetite or food intake in healthy men.
Conclusions: Collectively, these data demonstrate for the first time a beneficial role for kisspeptin in insulin secretion in humans in vivo. This has important implications for our understanding of the links between reproduction and metabolism in humans, as well as for the ongoing translational development of kisspeptin-based therapies for reproductive and potentially metabolic conditions.
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http://dx.doi.org/10.1111/dom.13460 | DOI Listing |
Pestic Biochem Physiol
November 2025
College of Plant Protection, Yangzhou University, Yangzhou, Jiangsu Province 225009, China; Jiangsu Province Engineering Research Center of Green Pesticides, Yangzhou University, Yangzhou 225009, China. Electronic address:
The brown planthopper (BPH), Nilaparvata lugens is a typical pesticide-induced resurgent rice pest. A previous study showed that a fungicide, jinggangmycin (JGM)-treated rice led to markedly increased sugar content and (Insulin-like Peptide 2) ILP2 in response to sugar-mediated TOR signaling and stimulated fecundity in BPH. However, the role of the other ILPs in response to types of carbohydrate compounds remained poorly understood.
View Article and Find Full Text PDFAm J Clin Nutr
September 2025
COPSAC, Copenhagen Prospective Studies on Asthma in Childhood, Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark. Electronic address:
Circulating levels of 3-carboxy-4-methyl-5-propyl-2-furanpropionic acid (CMPF), a metabolite derived from dietary furan fatty acids primarily found in marine food sources, have long been recognized as biomarkers for fish intake. However, elevated CMPF levels are also observed in patients with type 2 diabetes or chronic kidney disease and in healthy people associated with a reduced infection risk, suggesting potential bioactive roles in metabolism and immune function. Yet, the possible causal mechanisms behind these associations are unknown.
View Article and Find Full Text PDFMol Nutr Food Res
September 2025
Department of Nutrition and Food Hygiene, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China.
Current research indicates that insulin secretion deficiency in β-cells contributes to Type 2 diabetes mellitus (T2DM), which is associated with neuropeptide Y receptor (Npy1r) overexpression from neuropeptide Y (NPY) system dysregulation. To date, limited literature has explored nobiletin (NOB) as a circadian modulator for restoring β-cell function through Npy1r regulation. This study investigates NOB's stimulatory effects on insulin secretion via Npy1r and clock-modulatory signaling to elucidate its underlying mechanism.
View Article and Find Full Text PDFCell Regen
September 2025
Institute of Physical Chemistry, Polish Academy of Sciences, Warsaw, Poland.
Diabetes mellitus is a common and serious metabolic disease globally, characterized by increased blood glucose levels. The major pathogenesis is the functional impairment of insulin-producing beta cells in the pancreas and the lack of insulin secretion. Although both type 1 and type 2 diabetes develop through distinct pathological mechanisms, they lead to the destruction and/or dysfunction of beta cells, resulting in inadequate beta cell mass to maintain normal blood glucose levels.
View Article and Find Full Text PDFCarbohydr Polym
November 2025
Department of Kidney Transplantation, Nephropathy Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China. Electronic address:
Islet transplantation offers a promising therapeutic strategy for type 1 diabetes patients with inadequate glycemic control or severe complications. Islet encapsulation using biocompatible materials presents a potential solution to reduce immune rejection. This study fabricated and characterized Schiff base hydrogels (CMOCs) composed of varying ratios of carboxymethyl chitosan (CMCS) and oxidized carboxymethyl starch (OCMS).
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