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Peroxisome Proliferator Activator α Agonist Clofibrate Induces Pexophagy in Coconut Oil-Based High-Fat Diet-Fed Rats.
Biology (Basel)
December 2024
Laboratory of Veterinary Pathology, Cooperative Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Tokyo 183-8509, Japan.
Peroxisomes are crucial for fatty acid β-oxidation in steatosis, but the role of pexophagy-the selective autophagy of peroxisomes-remains unclear. This study investigated the effects of the peroxisome proliferator-activated receptor-α (PPARα) agonist clofibrate on pexophagy in a coconut oil-based high-fat diet (HFD)-induced hepatocarcinogenesis model. Rats were divided into four groups: control, clofibrate, HFD, and HFD with clofibrate.
View Article and Find Full Text PDFHeterozygous missense mutation of the fibrinogen gene associated with cryptogenic liver disease in a 15-months-old Canadian caucasian child.
Ultrastruct Pathol
December 2024
Anatomical Pathology, Children's Hospital of Eastern Ontario, Ottawa, ON, Canada.
Hepatic fibrinogen storage disease is an uncommon autosomal dominant hereditary illness marked by hypofibrinogenemia and the accumulation of variant fibrinogen in the hepatic endoplasmic reticulum. We present an asymptomatic 15-month-old male with elevated liver enzymes. Test results indicate hypofibrinogenemia.
View Article and Find Full Text PDFLoss of hepatocyte growth factor activator inhibitor type 1 (HAI-1) upregulates MMP-9 expression and induces degradation of the epidermal basement membrane.
Hum Cell
December 2024
Section of Oncopathology and Morphological Pathology, Department of Pathology, Faculty of Medicine, University of Miyazaki, 5200 Kihara, Kiyotake, Miazaki, 889-1692, Japan.
Hepatocyte growth factor activator inhibitor type 1 (HAI-1), which is encoded by the SPINT1 gene, is a membrane-associated serine proteinase inhibitor abundantly expressed in epithelial tissues. We had previously demonstrated that HAI-1 is critical for placental development, epidermal keratinization, and maintenance of keratinocyte morphology by regulating cognate proteases, matriptase and prostasin. After performing ultrastructural analysis of Spint1-deleted skin tissues, our results showed that Spint1-deleted epidermis exhibited partially disrupted epidermal basement-membrane structures.
View Article and Find Full Text PDFLoss of hepatocyte Usp53 protects mice from a form of xenobiotic-induced liver injury.
Biochim Biophys Acta Mol Basis Dis
December 2024
The Center for Pediatric Liver Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China; Shanghai Key Laboratory of Birth Defect, Shanghai 201102, China. Electronic address:
Background: Ubiquitin-specific protease 53 (USP53) deficiency is associated with familial intrahepatic cholestasis in which serum gamma-glutamyl transferase (GGT) activity is relatively low. However, how USP53 deficiency contributes to cholestasis is obscure. No animal model has been reported.
View Article and Find Full Text PDFExosomes Derived from Adipose Mesenhymal Stem Cells Ameliorate Lipid Metabolism Disturbances Following Liver Ischemia-Reperfusion Injury in Miniature Swine.
Int J Mol Sci
December 2024
College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
The liver plays a crucial role in regulating lipid metabolism. Our study examined the impact of Exosomes derived from adipose mesenchymal stem cells (ADSCs-Exo) on lipid metabolism following liver ischemia-reperfusion injury (IRI) combined with partial hepatectomy. We developed a miniature swine model for a minimally invasive hemi-hepatectomy combined with liver IRI.
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