ArticleMolecules (Basel, Switzerland)2021
Quercetin Prevents LPS-Induced Oxidative Stress and Inflammation by Modulating NOX2/ROS/NF-kB in Lung Epithelial Cells.
Article in Molecules (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 210 papers, 6 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
210 citing papers in PubMed, 6 syntheses or guidelines pooled it, 372 citations in OpenAlex.
- Therapeutic and pharmacological effects of quercetin in autoimmune diseases: a systematic review of preclinical and clinical evidence.Immunologic research · 2026Pooled it
- Lipopolysaccharide-mediated macrophage polarization, conserved pathogenesis, and implications for peripheral neuropathy: a systematic review.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2026Pooled it
- Clinical efficacy and multi-target mechanisms of liver-dispersing, bile-inducing, and heat-clearing TCM formulas in cholelithiasis: network meta-analysis, network pharmacology, and molecular docking study.Frontiers in medicine · 2026Pooled it
- Knowledge structure, latent topics, and emerging trends in quercetin-immunity research from 2006 to 2025: a bibliometric and LDA topic-modeling analysis.Frontiers in nutrition · 2026Pooled it
- Integrative meta-analysis and experimental validation reveal the oncogenic role of SACS and its therapeutic targeting potential in colorectal cancer.Scientific reports · 2025Pooled it
- A Systematic Review: Quercetin-Secondary Metabolite of the Flavonol Class, with Multiple Health Benefits and Low Bioavailability.International journal of molecular sciences · 2024Pooled it
- Aqueous extract of Ormocarpum cochinchinense promotes fracture healing through coordinated angiogenic, osteogenic, and cytoprotective mechanisms.Journal of molecular histology · 2026Article
- Dodonaea viscosa in Breast Cancer: Phytochemistry, Anticancer Mechanisms, and Emerging Immunotherapeutic and Translational Perspectives.Cancer medicine · 2026Review
- Comparative Effects of Quercetin and its α- and β-D-glucoside Derivatives in LPS-Stimulated C6 Astroglial Cells.Neurochemical research · 2026Article
- Therapeutic Effects of Intratracheally Nebulized Carnosine-Loaded Liposomes on Lipopolysaccharide-Induced Acute Lung Injury.Pharmaceutics · 2026Article
- Article
- Network Pharmacology-Based Exploration of Complementary Molecular Mechanisms of Heat-Clearing (Scutellariae Radix, Coptidis Rhizoma) and Blood-Tonifying Herbs (Angelicae Sinensis Radix, Paeoniae Radix Alba) in Cold Hypersensitivity in Hands and Feet.Life (Basel, Switzerland) · 2026Article
- Curcumin Pretreatment Alleviates Early Mannheimia Haemolytica-Induced Pulmonary Injury in Mice and Is Associated with Changes in Gut Microbial Composition.Microorganisms · 2026Article
- Advances and Clinical Translation Potentials of Functional Nanomaterials in Tissue Engineering.Bioengineering (Basel, Switzerland) · 2026Review
- Nicotinamide adenine dinucleotide phosphate hydrogen oxidase 2 exacerbates abdominal aortic aneurysm formation by inducing oxidative stress through autophagy inhibition.Histology and histopathology · 2026Article
- Quercetin in COPD: A Multi-Target Approach to Modulate Inflammation, Oxidative Stress, and Epithelial Dysfunction.International journal of molecular sciences · 2026Review
- Integrative analysis and in vitro assessment of the effects of α-mangostin on high-glucose-induced inflammatory and oxidative stress responses in RAW264.7 macrophages.BMC complementary medicine and therapies · 2026Article
- Atractylodis Macrocephalae Rhizoma ameliorates diarrhea induced by cold drinks and a high-fat diet by remodeling gut microecology and restoring barrier function.Chinese medicine · 2026Article
- Nano-Encapsulated Black Bean-CultivatedNutrients · 2026Article
- The bidirectional mechanistic links between Alzheimer's disease and cardiovascular disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026Review
150 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 2 institutions in 1 country.
Funding
Abstract
Oxidative stress caused by the production of reactive oxygen species (ROS) plays a major role in inflammatory processes. We hypothesized that modulation of ROS via quercetin may protect against oxidative stress and inflammation. Thus, this study aimed to investigate the effects of quercetin on oxidative stress and inflammation in lung epithelial A549 cells. The lipopolysaccharide (LPS)-induced elevation of intracellular ROS levels was reduced after quercetin treatment, which also almost completely abolished the mRNA and protein expression of nicotinamide adenine dinucleotide phosphate oxidase 2 (NOX2) induced by LPS stimulation. In addition, quercetin suppressed the nuclear translocation of nuclear factor kappa B (NF-κB) and reduced levels of inflammatory cytokine tumor necrosis factor (TNF)-α, interleukin (IL)-1, and IL-6, which had increased significantly after LPS exposure. Our data demonstrated that quercetin decreased ROS-induced oxidative stress and inflammation by suppressing NOX2 production.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.