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Ceramides are membrane lipids implicated in the regulation of numerous biological functions. Recent evidence suggests that specific subsets of molecular species of ceramide may play distinct physiological roles. The importance of this family of molecules in vertebrates is witnessed by the deleterious consequences of genetic alterations in ceramide metabolism. This brief review summarizes the clinical presentation of human disorders due to the deficiency of enzymes involved either in the biosynthesis or the degradation of ceramides. Information on the possible underlying pathophysiological mechanisms is also provided, based on knowledge gathered from animal models of these inherited rare conditions. When appropriate, tools for chemical and molecular diagnosis of these disorders and therapeutic options are also presented.
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http://dx.doi.org/10.1016/j.cca.2019.05.020 | DOI Listing |
Signal Transduct Target Ther
September 2025
State Key Lab of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 100021, Beijing, China.
Int Immunopharmacol
September 2025
Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China. Electronic address:
Background: To elucidate the therapeutic effects and underlying mechanisms of palmatine, a principal alkaloid derived from Coptis chinensis, on neuroinflammation in ischemic stroke rat models induced by middle cerebral artery occlusion (MCAO).
Methods: Initially, qPCR was employed to assess the impact of neurotrophic factors secreted by SH-SY5Y neuroblastoma cells on the phenotypes of BV2 cells. Alterations in sphingolipid profiles within neuronal supernatants were characterized using liquid chromatography-tandem mass spectrometry, and molecular docking studies were conducted to investigate the interaction of palmatine with key enzymes involved in sphingolipid metabolism.
Environ Int
September 2025
Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, China. Electronic address:
Cadmium (Cd) is a respiratory toxicant. Previous reports have confirmed that chronic respiratory Cd exposure causes chronic obstructive pulmonary disease-like lesions in a murine model. This study aimed to evaluate the influence of short-term Cd exposure on lung function.
View Article and Find Full Text PDFHepatol Commun
September 2025
State Key Laboratory of Medical Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Beijing, China.
Background: Hepatic glycosphingolipid biosynthesis is implicated in insulin resistance and metabolic dysfunction-associated steatotic liver disease (MASLD). While UDP-glucose ceramide glucosyltransferase (UGCG) serves as the rate-limiting enzyme in glycosphingolipid synthesis, its cell-specific roles in MASLD pathogenesis remain undefined. Our study investigates the mechanistic contribution of LSEC-expressed UGCG to high-fat diet (HFD)-induced insulin resistance and MASLD progression.
View Article and Find Full Text PDFJ Agric Food Chem
September 2025
Department of Agricultural, Food and Nutritional Sciences, 4-10 Ag/For Building, University of Alberta, Edmonton, Alberta T6G 2P5, Canada.
IRW, an antihypertensive peptide derived from ovotransferrin, has been shown to lower blood pressure in spontaneously hypertensive rats (SHRs) by upregulating angiotensin-converting enzyme 2 (ACE2). ACE2 is cardioprotective and a well-documented inhibitor of apoptosis. This study aims to investigate the anti-apoptotic effects of IRW and its underlying mechanism in SHRs' vasculature.
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