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Liver lipid metabolism, oxidative stress, and inflammation in glutamine-supplemented ob/ob mice.
J Nutr Biochem
January 2025
Faculty of Health, Southern Cross University, Gold Coast, QLD, 4225, Australia. Electronic address:
Glutamine availability may be reduced in chronic diseases, such as type 2 diabetes mellitus (T2DM)-induced by obesity. Herein, the antioxidant, anti-inflammatory and lipid metabolism effects of chronic oral glutamine supplementation in its free and dipeptide form were assessed in ob/ob mice. Adult male C57BL/6J ob/ob mice were supplemented with L-alanyl-L-glutamine (DIP) or free L-glutamine (GLN) in the drinking water for 40 days, whilst C57BL/6J Wild-type lean (WT) and control ob/ob mice (CTRL) received fresh water only.
View Article and Find Full Text PDFHepatic and Pancreatic Cellular Response to Early Life Nutritional Mismatch.
Endocrinology
January 2025
Department of Pediatrics, Divisions of Neonatology & Developmental Biology and Endocrinology, Neonatal Research Center of the UCLA Children's Discovery & Innovation Institute at the David Geffen School of Medicine at UCLA, Los Angeles, California 90095-1752.
To determine the basis for perinatal nutritional mismatch causing metabolic dysfunction associated steatotic liver disease (MASLD) and diabetes mellitus, we examined adult phenotype, hepatic transcriptome, and pancreatic β-islet function. In prenatal caloric restricted rat with intrauterine growth restriction (IUGR) and postnatal exposure to high fat with fructose (HFhf) or high carbohydrate (RC), we investigated male and female IUGR-Hfhf and IUGR-RC, versus HFhf and CON offspring. Males more than females displayed adiposity, glucose intolerance, insulin resistance, hyperlipidemia, hepatomegaly with hepatic steatosis.
View Article and Find Full Text PDFFurther Characterization of Lipase B from Ustilago maydis Expressed in Pichia pastoris: a Member of the Candida antarctica Lipase B-like Superfamily.
Appl Biochem Biotechnol
January 2025
Unidad de Biotecnología Industrial, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco A.C, 45019, Zapopan, Jal, Mexico.
Lipases from the basidiomycete fungus Ustilago maydis are promising but underexplored biocatalysts due to their high homology with Candida antarctica lipases. This study provides a comprehensive characterization of a recombinant CALB-like lipase from U. maydis, expressed in Pichia pastoris (rUMLB), and compares its properties with those of the well-studied recombinant lipase B from C.
View Article and Find Full Text PDFNLRP6 overexpression improves nonalcoholic fatty liver disease by promoting lipid oxidation and decomposition in hepatocytes through the AMPK/CPT1A/PGC1A pathway.
Nan Fang Yi Ke Da Xue Xue Bao
January 2025
Department of Gastroenterology, Affiliated Hospital of Guizhou Medical University, Guiyang 550000, China.
Objectives: To investigate the regulatory role of nucleotide-bound oligomerized domain-like receptor containing pyrin-domain protein 6 (NLRP6) in liver lipid metabolism and non-alcoholic fatty liver disease (NAFLD).
Methods: Mouse models with high-fat diet (HFD) feeding for 16 weeks (=6) or with methionine choline-deficient diet (MCD) feeding for 8 weeks (=6) were examined for the development of NAFLD using HE and oil red O staining, and hepatic expressions of NLRP6 were detected with RT-qPCR, Western blotting, and immunohistochemical staining. Cultured human hepatocytes (LO2 cells) with adenovirus-mediated NLRP6 overexpression or knock-down were treated with palmitic acid (PA) in the presence or absence of compound C (an AMPK inhibitor), and the changes in cellular lipid metabolism were examined by measuring triglyceride, ATP and β-hydroxybutyrate levels and using oil red staining, RT-qPCR, and Western blotting.
PEGylation Improves the Therapeutic Index of Dexamethasone To Treat Acute Respiratory Distress Syndrome with Obesity Background in Mouse.
Mol Pharm
January 2025
Department of Pharmaceutics, School of Pharmacy, University of Minnesota, Minneapolis, Minnesota 55455, United States.
With increasing prevalence globally, obesity presents unique challenges to the clinical management of other diseases. In the case of acute respiratory distress syndrome (ARDS), glucocorticoid therapy (e.g.
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