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Nobiletin and Eriodictyol Suppress Release of IL-1β, CXCL8, IL-6, and MMP-9 from LPS, SARS-CoV-2 Spike Protein, and Ochratoxin A-Stimulated Human Microglia.
Int J Mol Sci
January 2025
Laboratory of Molecular Immunopharmacology and Drug Discovery, Department of Immunology, Tufts University School of Medicine, Boston, MA 02111, USA.
Neuroinflammation is involved in various neurological and neurodegenerative disorders in which the activation of microglia is one of the key factors. In this study, we examined the anti-inflammatory effects of the flavonoids nobiletin (5,6,7,8,3',4'-hexamethoxyflavone) and eriodictyol (3',4',5,7-tetraxydroxyflavanone) on human microglia cell line activation stimulated by either lipopolysaccharide (LPS), severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) full-length Spike protein (FL-Spike), or the mycotoxin ochratoxin A (OTA). Human microglia were preincubated with the flavonoids (10, 50, and 100 µM) for 2 h, following which, they were stimulated for 24 h.
View Article and Find Full Text PDFEpidemiological and Clinical Characteristics of Pediatric Acute Drug Intoxications: A Retrospective Analysis.
Children (Basel)
December 2024
County Hospital Craiova, Department of Anatomy, University of Medicine and Pharmacy, Discipline of Anatomy, 200349 Craiova, Romania.
Background/objectives: Acute drug intoxications (ADIs) are a significant concern in pediatric healthcare, contributing to both accidental and intentional morbidity. This study aimed to analyze the demographic, clinical, and therapeutic characteristics of pediatric ADI cases to identify trends and inform preventive strategies.
Methods: This retrospective study included 120 cases of pediatric ADI admitted to the Second Pediatric Clinic of Craiova County Emergency Clinical Hospital in 2022 and 2023.
A review on oxidative stress in organophosphate-induced neurotoxicity.
Int J Biochem Cell Biol
January 2025
Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Kuwait University, Safat 13110, Kuwait. Electronic address:
Acetylcholinesterase inhibition, the principal mechanism of acute organophosphorus compound toxicity, cannot explain neuropsychiatric symptoms occurring after exposure to low organophosphate concentrations causing no cholinergic symptoms. Organophosphate-triggered oxidative stress has increasingly come into focus, occurring when the action of reactive oxygen species, generated from free radicals, is not compensated by antioxidant free radical scavengers. Being nucleophilic, organophosphates can easily accept an electron, thereby generating free radicals.
View Article and Find Full Text PDFRNase T2 deficiency promotes TLR13-dependent replenishment of tissue-protective Kupffer cells.
J Exp Med
March 2025
Division of Innate Immunity, The Institute of Medical Science, The University of Tokyo, Minato-ku, Japan.
Lysosomal stress due to the accumulation of nucleic acids (NAs) activates endosomal TLRs in macrophages. Here, we show that lysosomal RNA stress, caused by the lack of RNase T2, induces macrophage accumulation in multiple organs such as the spleen and liver through TLR13 activation by microbiota-derived ribosomal RNAs. TLR13 triggered emergency myelopoiesis, increasing the number of myeloid progenitors in the bone marrow and spleen.
View Article and Find Full Text PDFSpecialty laboratory testing for chronic abdominal pain in irritable bowel syndrome.
Scand J Gastroenterol
January 2025
Department of Gastroenterology, Hepatology, and Nutrition, Digestive Disease Institute, Cleveland Clinic Foundation, Cleveland, OH, USA.
Background: Irritable bowel syndrome (IBS) is a common gastrointestinal disorder seen by both primary care providers (PCPs) and gastroenterologists, and further diagnostic testing is generally discouraged unless red-flag symptoms are present.
Aims: Examine if advanced serologic testing for chronic abdominal pain in IBS patients followed society-specific guidelines and evaluate the diagnostic accuracy of these tests.
Methods: The study involved a retrospective cross-sectional analysis of adults aged 18 and older who were seen at our institution between 2013 and 2018.
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