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Leptin increases chemosensitivity by inhibiting in colorectal cancer cells.
J Gastrointest Oncol
December 2024
Department of General Surgery, the First Affiliated Hospital of Soochow University, Suzhou, China.
Background: Chemoresistance is a major cause of treatment failure in advanced colorectal cancer (CRC), severely impacting patient survival and quality of life. While conventional chemotherapy regimens can somewhat control tumor progression, their effectiveness is frequently compromised by the development of drug resistance in cancer cells. The aim of this study is to verify and elucidate the specific mechanisms by which leptin enhances chemosensitivity in CRC, providing valuable insights for the development of new combination chemotherapy options.
View Article and Find Full Text PDFPancreatic expression of CPT1A is essential for whole body glucose homeostasis by supporting glucose-stimulated insulin secretion.
J Biol Chem
January 2025
Laboratory of Immunogenetics, Pennington Biomedical Research Center, Baton Rouge, LA, 70808, USA; Department of Biological Sciences, Louisiana State University, Baton Rouge, LA 70803, USA. Electronic address:
Pancreatic islet β-cells express the Cpt1a gene, which encodes the enzyme carnitine palmitoyltransferase 1A (CPT1A), an enzyme that facilitates entry of long chain fatty acids into the mitochondria. Because fatty acids are required for glucose-stimulated insulin secretion, we tested the hypothesis that CPT1A is essential to support islet β-cell function and mass. In this study, we describe genetic deletion of Cpt1a in pancreatic tissue (Cpt1a) using C57BL/6J mice.
View Article and Find Full Text PDF[Berberine regulates glucose and lipid metabolism via clock-controlled genes to ameliorate insulin resistance of hepatocytes].
Zhongguo Zhong Yao Za Zhi
December 2024
Jiangxi Province Key Laboratory of Traditional Chinese Medicine Etiopathogenisis & Research Center for Differentiation and Development of Traditional Chinese Medicine Basic Theory, Jiangxi University of Chinese Medicine Nanchang 330004,China.
This study aims to investigate the mechanism of berberine in regulating the metabolism network via clock-controlled genes represented by brain and muscle arnt-like 1(BMAL1) to ameliorate insulin resistance(IR) of hepatocytes in vitro. The HepG2 cell model of dexamethasone-induced IR(IR-HepG2) was established and treated with 5, 10, and 20 μmol·L~(-1) berberine, respectively, for 24 h. The glucose oxidase method and cell counting kit-8(CCK-8) assay were employed to measure extracellular glucose concentration and cell viability, respectively.
View Article and Find Full Text PDFEndothelial Cpt1a Inhibits Neonatal Hyperoxia-Induced Pulmonary Vascular Remodeling by Repressing Endothelial-Mesenchymal Transition.
Adv Sci (Weinh)
January 2025
Department of Molecular Biology, Cellular Biology, and Biochemistry, Brown University, Providence, RI, 02912, USA.
Pulmonary hypertension (PH) increases the mortality of preterm infants with bronchopulmonary dysplasia (BPD). There are no curative therapies for this disease. Lung endothelial carnitine palmitoyltransferase 1a (Cpt1a), the rate-limiting enzyme of the carnitine shuttle system, is reduced in a rodent model of BPD.
View Article and Find Full Text PDFOlanzapine exposure disordered lipid metabolism, gut microbiota and behavior in zebrafish (Danio rerio).
Comp Biochem Physiol C Toxicol Pharmacol
January 2025
College of Fisheries, Henan Normal University, Xinxiang 453007, PR China; Engineering Technology Research Center of Henan Province for Aquatic Animal Cultivation, Henan Normal University, Xinxiang 453007, PR China. Electronic address:
Olanzapine (OLZ) is widely used in the treatment of schizophrenia, and its metabolic side effects have garnered significant attention in recent years. Despite this, the specific side effects of OLZ and the underlying mechanisms remain inadequately understood. To address this gap, zebrafish (Danio rerio) were exposed to OLZ at concentrations of 35.
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