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Roles for Prlhr/GPR10 and Npffr2/GPR74 in Feeding Responses to PrRP.
Mol Metab
January 2025
Department of Internal Medicine, University of Michigan, Ann Arbor, MI USA; Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI, USA. Electronic address:
Several groups of neurons in the NTS suppress food intake, including Prlh-expressing neurons (NTS cells). Not only does the artificial activation of NTS cells decrease feeding, but also the expression of Prlh (which encodes the neuropeptide PrRP) and neurotransmission by NTS neurons contributes to the restraint of food intake and body weight, especially in animals fed a high fat diet (HFD). We used animals lacking PrRP receptors GPR10 and/or GRP74 (encoded by Prlhr and Npffr2, respectively) to determine roles for each in the restraint of food intake and body weight by the increased expression of Prlh in NTS neurons (NTS mice) and in response to the anorectic PrRP analog, p52.
View Article and Find Full Text PDFSmall molecule-driven LKB1 deacetylation is responsible for the inhibition of hepatic lipid response in NAFLD.
J Lipid Res
January 2025
Institute of Endocrine and Metabolic Diseases, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230027, China. Electronic address:
Nonalcoholic fatty liver disease (NAFLD) is a progressive condition characterized by ectopic fat accumulation in the liver, for which no FAD-approved drugs currently exist. Emerging evidence highlights the role of liver kinase B1 (LKB1), a key metabolic regulator, has been proposed in NAFLD, particularly in response to excessive nutrient levels. However, few agents have been identified that can prevent the progression of nonalcoholic steatohepatitis (NASH) by targeting LKB1 deacetylation.
View Article and Find Full Text PDFLeptin, NK cells, and the weight of immunity: Insights into obesity.
Int Immunopharmacol
January 2025
Immunology Laboratory of Infectious Diseases, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa, Paraíba 58051-900, Brazil. Electronic address:
Obesity is a chronic inflammatory disease that affects more than 1 billion people worldwide and is associated with various metabolic and physiological dysfunctions, directly impacting the dynamics of the immune response, partly due to elevated leptin levels. Leptin is an important peptide hormone that regulates neuroendocrine function and energy homeostasis, with its blood levels reflecting energy reserves, fat mass, or energy deprivation. This hormone also plays a fundamental role in regulating immune function, including the activity of NK cells, which are essential components in antiviral and antitumor activity.
View Article and Find Full Text PDFEnhancing pork meat batter with curdlan gum-guar gum composite microgels: Impact of fat replacer on gel properties, water distribution, and sensory perception.
Food Chem
December 2024
College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, PR China; China-Ireland International Cooperation Centre for Food Material Science and Structural Design, Fuzhou 350002, China.
This work investigated the effects of curdlan gum-guar gum composite microgels (CG microgels) as a fat replacer on the gel properties, water distribution, and microstructures of pork meat batters, using techniques including rheometry, SEM, and LF-NMR. Between 55 °C and 80 °C, the addition of 30 % CG microgels enhanced the viscoelastic response of pork meat batters. Additionally, the CG microgels reduced cooking loss from 18.
View Article and Find Full Text PDFSemaglutide restores astrocyte-vascular interactions and blood-brain barrier integrity in a model of diet-induced metabolic syndrome.
Diabetol Metab Syndr
January 2025
Laboratory of Immunopharmacology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation-Fiocruz, Campus Maré. Centro de Pesquisa, Inovação e Vigilância em Covid-19 e Emergências Sanitárias. Endereço: Av. Brasil, 4036-Bloco 2. Manguinhos, Rio de Janeiro, RJ, CEP 21040-361, Brazil.
Introduction: Metabolic syndrome (MetS) is a metabolic disorder related to obesity and insulin resistance and is the primary determinant of the development of low-intensity chronic inflammation. This continuous inflammatory response culminates in neuroimmune-endocrine dysregulation responsible for the metabolic abnormalities and morbidities observed in individuals with MetS. Events such as the accumulation of visceral adipose tissue, increased plasma concentrations of free fatty acids, tissue hypoxia, and sympathetic hyperactivity in individuals with MetS may contribute to the activation of the innate immune response, which compromises cerebral microcirculation and the neurovascular unit, leading to the onset or progression of neurodegenerative diseases.
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