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Melatonin inhibits ferroptosis through the ATF3/GPX4 signaling pathway to relieve myocardial ischemia-reperfusion injury in rats.
In Vitro Cell Dev Biol Anim
January 2025
Department of Critical Care Medicine, The Qujing NO.1 People's Hospital, Qujing, 655000, Yunnan, China.
Melatonin (MEL), functioning as a circulating hormone, is important for the regulation of ferroptosis in different health scenarios and acts as a crucial antioxidant in cardiovascular diseases. However, its specific function in ferroptosis related to myocardial ischemia-reperfusion injury (MIRI) remains to be fully elucidated. In our research, we utilized a rat model of MIRI induced by coronary artery ligation, along with a cell model subjected to hypoxia/reoxygenation (H/R).
View Article and Find Full Text PDFCoinfection of gastrointestinal parasites with paratuberculosis in naturally infected sheep.
Vet World
November 2024
Department of Clinical Veterinary Medical Sciences, Faculty of Veterinary Medicine, Jordan University of Science and Technology, Irbid, Jordan.
Background And Aim: subspecies paratuberculosis (MAP) causes Johne's disease (paratuberculosis), which is a chronic wasting disease. No previous study has been found to investigate the coinfection of gastrointestinal parasites with paratuberculosis. This study aimed to investigate the relationship between paratuberculosis and gastrointestinal parasitism in naturally infected local Awassi (AS) and imported Tsurcana (TS) sheep.
View Article and Find Full Text PDFMyelin Methods: A Mini-Review.
Toxicol Pathol
January 2025
Premier Laboratory, LLC, Longmont, Colorado, USA.
Hematoxylin and eosin (H&E) staining is a suitable approach for detecting substantial structural changes in neural tissues but is less sensitive for identifying subtle alterations to subcellular structures and various chemical constituents, including myelin. Neurohistological methods to better evaluate myelin integrity by light microscopy include acidophilic dyes (eg, eriochrome cyanine R, toluidine blue [used with hard plastic sections]); lipoprotein-binding dyes (eg, Luxol fast blue [LFB], Weil's iron hematoxylin); lipid impregnation with metals (eg, Marchi's, which uses osmium tetroxide for en bloc staining before embedding); and immunohistochemical (IHC) methods to highlight various antigens (eg, myelin basic protein [MBP] and peripheral myelin protein 22 [PMP22]). Some IHC methods reveal enhanced marker expression in damaged myelin (eg, matrix metalloproteinase-9 [MMP9], S100).
View Article and Find Full Text PDFToona sinensis fruit polyphenols alleviate cerebral ischemia-reperfusion injury in rats by inhibiting MAPK signaling pathways and NLRP3 inflammasome/pyroptosis.
J Ethnopharmacol
January 2025
Department of Pharmacology, College of Medicine, Jiaxing University, Jiaxing, 314001, PR China; Third-grade Pharmacological Laboratory on Traditional Chinese Medicine, State Administration of Traditional Chinese Medicine, China Three Gorges University, Yichang 443002, PR China; College of Basic Medical Sciences, China Three Gorges University, Yichang 443002, PR China. Electronic address:
Ethnopharmacological Relevance: Toona sinensis fruit polyphenols (TSFP) are polyphenols that have been separated and extracted from mature Toona sinensis fruits. TSFP anti-inflammatory and neuroprotective properties have demonstrated promise. However, the underlying mechanisms require more elucidation.
View Article and Find Full Text PDFSynergistic toxicity of nanoplastics and Helicobacter pylori on digestive system in mice.
Ecotoxicol Environ Saf
January 2025
School of Basic Medical Sciences, Binzhou Medical University, Yantai 264003, China. Electronic address:
Nanoplastics, in combination with pathogenic microorganisms or toxic substances, have been shown to induce oxidative stress and disrupt energy and lipid metabolism, posing significant health risks. This study evaluated the toxic effects of co-exposure to nanoplastics and Helicobacter pylori on the digestive system of mice. Transmission electron microscopy confirmed the accumulation of AuPS-NPs (Au-core polystyrene nanoplastics) in the stomach, colon, and liver, while hematoxylin and eosin staining revealed dose-dependent pathological damage in these tissues.
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