Browse studies, page 1000

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• Electrochemical Oxidation of Quercetin Electroanalysis, 2003
• Cocrystals of Quercetin with Improved Solubility and Oral Bioavailability Molecular Pharmaceutics, 2011
• Quercetin as an Antiviral Agent Inhibits Influenza A Virus (IAV) Entry Viruses, 2015
• Plasma metabolites of quercetin and their antioxidant properties American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 1998
• Bioavailabilities of quercetin-3-glucoside and quercetin-4'-glucoside do not differ in humans Journal of Nutrition, 2000
• Human metabolism of dietary flavonoids: Identification of plasma metabolites of quercetin Free Radical Research, 2001
• Antioxidant and pro-oxidant actions of the plant phenolics quercetin, gossypol and myricetin. Effects on lipid peroxidation, hydroxyl radical generation and bleomycin-dependent damage to DNA. Biochemical Pharmacology, 1989
• Mutagenic Activity of Quercetin and Related Compounds Science, 1977
• Flavonoids apigenin and quercetin inhibit melanoma growth and metastatic potential International Journal of Cancer, 2000
• Quercetin increases brain and muscle mitochondrial biogenesis and exercise tolerance American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 2009
• Daily quercetin supplementation dose-dependently increases plasma quercetin concentrations in healthy humans Journal of Nutrition, 2008
• Quercetin is recovered in human plasma as conjugated derivatives which retain antioxidant properties FEBS Letters, 1998
• Antihypertensive effects of the flavonoid quercetin in spontaneously hypertensive rats British Journal of Pharmacology, 2001
• Effect of thermal processing on the flavonols rutin and quercetin Rapid Communications in Mass Spectrometry, 2006
• Bioavailability of Quercetin: Problems and Promises Current Medicinal Chemistry, 2013
• Senolytics decrease senescent cells in humans: Preliminary report from a clinical trial of Dasatinib plus Quercetin in individuals with diabetic kidney disease EBioMedicine, 2019
• Iron Chelation by the Powerful Antioxidant Flavonoid Quercetin Journal of Agricultural and Food Chemistry, 2006
• Quercetin and Its Anti-Allergic Immune Response Molecules, 2016
• Quercetin: A Versatile Flavonoid Internet Journal of Medical Update - EJOURNAL, 2007
• Therapeutic Potential of Quercetin: New Insights and Perspectives for Human Health ACS Omega, 2020
• Mechanisms of Neuroprotection by Quercetin: Counteracting Oxidative Stress and More Oxidative Medicine and Cellular Longevity, 2016
• Quercetin: potentials in the prevention and therapy of disease Current Opinion in Clinical Nutrition & Metabolic Care, 2008
• Antidiabetic effects of quercetin in streptozocin-induced diabetic rats Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology, 2003
• Quercetin and Cancer Chemoprevention Evidence-based Complementary and Alternative Medicine, 2010
• Content of the Flavonols Quercetin, Myricetin, and Kaempferol in 25 Edible Berries Journal of Agricultural and Food Chemistry, 1999
• Relative bioavailability of the antioxidant flavonoid quercetin from various foods in man FEBS Letters, 1997
• Pharmacokinetics and bioavailability of quercetin glycosides in humans The Journal of Clinical Pharmacology, 2001
• Flavonoid (Myricetin, Quercetin, Kaempferol, Luteolin, and Apigenin) Content of Edible Tropical Plants Journal of Agricultural and Food Chemistry, 2001
• Absorption of dietary quercetin glycosides and quercetin in healthy ileostomy volunteers American Journal of Clinical Nutrition, 1995
• Review of the biology of Quercetin and related bioflavonoids Food and Chemical Toxicology, 1995
• An Investigative, Randomized, Open, Pilot Study to Assess the Tolerability, Safety and Efficacy of HAcid/CS Intravesical Instillations Plus an Oral Combination of Curcumin,Quercetin, HA and CS in Prevention of Radiation Induced Cystitis ClinicalTrials.gov · COMPLETED, 2020
• Therapeutic Efficacy of SB Flavon in the Treatment of Advanced (F3-F4) HBV-related Cirrhosis and Hepatocellular Carcinoma ClinicalTrials.gov · COMPLETED, 2026
• Comparison of Plasma Caffeine Concentration After Oral Consumption of Caffeinated Beverages With Varied Bioactive Compounds in Healthy Volunteers ClinicalTrials.gov · COMPLETED, 2020
• Effect of Ginger Extract on Postprandial Glycemia of Healthy Adults and Its Antioxidant Properties: a Randomized Controlled Trial ClinicalTrials.gov · COMPLETED, 2017
• Randomized, Placebo-controlled Clinical Trial to Evaluate the Efficacy of an Oral Nutritional Supplement Based on Quercetin in the Prevention of Covid-19 Infection for a Duration of 3 Months ClinicalTrials.gov · COMPLETED, 2021
• Open-Label Study to Evaluate the Effect of Elimune Capsules on Biomarkers in Patients With Plaque Psoriasis ClinicalTrials.gov · COMPLETED, 2015
• Targeted Removal of Pro-Inflammatory Cells: An Open Label Human Pilot Study in Idiopathic Pulmonary Fibrosis ClinicalTrials.gov · COMPLETED, 2019
• A Randomized, Double-blinded, Parallel-group, Placebo-controlled Clinical Study of the Efficacy and Safety of an Oral Nutraceutical (Lertal®) as an add-on to Standard Therapy for Allergic Rhinoconjunctivitis in Pediatrics ClinicalTrials.gov · COMPLETED, 2018
• Evaluation of a Computational Model That Predicts the Effects of Quercetin on Metabolic Health Using Biological Age and Other Lipid-related Blood Metrics ClinicalTrials.gov · TERMINATED, 2022
• The Effect of Plant Phenolic Compounds on Human Colon Epithelial Cells ClinicalTrials.gov · TERMINATED, 2006
• A Phase II Randomized Controlled Trial of a Supplement Containing Quercetin, Bromelain, Rye Flower Pollen, and Papain on Reducing the Severity of Radiation-Induced Prostatitis ClinicalTrials.gov · TERMINATED, 2024
• Can Quercetin Increase Claudin-4 and Improve Esophageal Barrier Function in GERD? ClinicalTrials.gov · COMPLETED, 2016
• Open Label,Crossover,Pilot Study to Assess the Efficacy & Safety of Perispinal Admin.of Etanercept(Enbrel®) in Comb.w/Nutritional Supplements vs. Nutritional Supplements Alone in Subj. w/Mild to Mod. Alzheimer's Disease Receiving Std. Care ClinicalTrials.gov · COMPLETED, 2016
• A Phase I Randomized, Double-Blind, Placebo-Controlled Two-Arm Study of Quercetin and Green Tea to Enhance the Bioavailability of Green Tea Polyphenols in Men Scheduled for Prostatectomy ClinicalTrials.gov · COMPLETED, 2021
• Effect of Hyaluronic Acid Oral Supplementation on Sexual and Urinary Symptoms of Women With Recurrent Urinary Tract Infections ClinicalTrials.gov · COMPLETED, 2023
• A Prospective Randomized Controlled Trial of GlaucoCetin vs Placebo in Glaucoma Patients With Visual Field Loss ClinicalTrials.gov · TERMINATED, 2022
• Quercetin Chemoprevention for Squamous Cell Carcinoma in Patients With Fanconi Anemia ClinicalTrials.gov · COMPLETED, 2026
• Serum Concentration of Endogenous Estrogens and Sirtuin-1 in Postmenopausal Women With Atherosclerotic Coronary Heart Disease After Administration of Atorvastatin and Supplementation With Quercetin: a Randomized Study ClinicalTrials.gov · COMPLETED, 2024
• Phase I Study to Determine the Safety of Quercetin in COPD Patients ClinicalTrials.gov · COMPLETED, 2015
• Étude randomisée contrôlée Par Placebo de Phase II Visant à Mesurer l'Effet Anti-inflammatoire et Anti-sénescence de la quercétine Lors d'Une Chirurgie Cardiaque ClinicalTrials.gov · COMPLETED, 2025
• Efficacy of Psidii Guava's Extract For Mild And Symptomless Coronavirus Disease-19 (COVID-19) ClinicalTrials.gov · COMPLETED, 2021
• Effects of Oral Ginkgo Biloba Extract on Pregnancy Complicated by Asymmetrically Intrauterine Growth Restriction: a Double-blinded Randomized Placebo-controlled Trial ClinicalTrials.gov · COMPLETED, 2015
• Three New Ideas to Protect Special Forces From the Stress of High Altitude ClinicalTrials.gov · COMPLETED, 2016
• The Effect of Quercetin on the Increased Inflammatory and Decreased Antioxidant Status in Sarcoidosis ClinicalTrials.gov · COMPLETED, 2006
• Efficacy Evaluation of a Mixed Compound (Magnesium, Curcumin, Resveratrol, Quercetin, Vitamin E, Zinc, Selenium, Folic Acid, Vitamin D) in Terms of Endothelium Damage/Function in Pediatric Subjects With Obesity: Double-blind, Randomized, Controlled Trial of 6-months Duration ClinicalTrials.gov · COMPLETED, 2020
• Pilot Study to Investigate the Safety and Feasibility of Senolytic Therapy to Modulate Progression of Alzheimer's Disease (SToMP-AD) ClinicalTrials.gov · COMPLETED, 2023
• Quercetin in Children With Fanconi Anemia; a Pilot Study ClinicalTrials.gov · COMPLETED, 2021
• Complementary Therapy of Dietary Supplements Curcumin, Quercetin and Vitamin D3 for Mild to Moderate Symptoms of COVID-19 ClinicalTrials.gov · COMPLETED, 2022
• Dasatinib and Quercetin, a Combination of Senolytics to Treat Fibrotic Non-alcoholic Fatty Liver Disease - the TRUTH Study ClinicalTrials.gov · COMPLETED, 2026
• Influence of Ingesting a Flavonoid-rich Supplement on the Human Metabolome and Concentration of Urine Phenolics ClinicalTrials.gov · COMPLETED, 2016
• Comparing the Pharmacological Profile of Different Quercetin Formulations in Healthy Volunteers ClinicalTrials.gov · COMPLETED, 2022
• Phytochemical Release Rate From Black Raspberry Confections Alters Gene Expression and Chemical Profiles Relevant to Inhibition of Oral Carcinogenesis ClinicalTrials.gov · COMPLETED, 2014
• Efficacia DI UN integratore a base DI D-mannosio, propoli, quercetina, collagene E bacillus coagulans NEL ridurre l'incidenza E migliorare LA qualita' DI vita in donne CON cistite ricorrente ClinicalTrials.gov · COMPLETED, 2024
• Effects of a Dietary Supplement on Collagen Production and Evaluation of Its Regenerative and Anti-Ageing Propertiess ClinicalTrials.gov · COMPLETED, 2026
• Study to Investigate the Benefits of Dietary Supplement Quercetin for Early Symptoms of COVID-19 ClinicalTrials.gov · COMPLETED, 2021
• Effect of Onion Peel Extract on Endothelial Function and Endothelial Progenitor Cells in Overweight and Obese Subjects ClinicalTrials.gov · COMPLETED, 2013
• GRAPe Seed Extract and Ventriculovascular Investigation in Normal Ejection-Fraction Heart Failure ClinicalTrials.gov · COMPLETED, 2014
• Advancing Niacin by Inhibiting FLUSHing: (ANTI-FLUSH) ClinicalTrials.gov · COMPLETED, 2009
• Comparative Evaluation of Bromelain-Quercetin Gel With Chlorhexidine Gel as Subgingival Local Drug Delivery Following Scaling and Root Planing In Stage I /II and Grade B Periodontitis - Randomized Control Clinical Trail ClinicalTrials.gov · COMPLETED, 2024
• Treatment Benefits of Flavonoids Quercetin and Curcumin Supplements for Mild Symptoms of COVID-19 ClinicalTrials.gov · COMPLETED, 2021
• A Randomized Placebo-Controlled Study to Evaluate the Effects of a Gummy and Capsule Supplement on Symptoms of Premenstrual Syndrome ClinicalTrials.gov · COMPLETED, 2024
• Evaluation of a NEW supplement on nutritional status in children with food allergy ClinicalTrials.gov · COMPLETED, 2025
• Effects of Short-term Curcumin and Multi-polyphenol Supplementation on the Anti-inflammatory Properties of HDL ClinicalTrials.gov · COMPLETED, 2020
• An Open, Uncontrolled Trial in Healthy Volunteers to Explore the Plasma and Urinary Pharmacokinetics of a Single Oral Dose of 1,800 mg Red Vine Leaf Extract (Antistax®) ClinicalTrials.gov · COMPLETED
• A Double-Blind, Cross-Over, Placebo-Controlled Study Evaluating the Effect of Quercetin 500 mg Tablets on Blood Uric Acid in Healthy Males ClinicalTrials.gov · COMPLETED, 2014
• Nasal Potential Studies Utilizing CFTR Modulators (UAB Center for Clinical and Translational Science) ClinicalTrials.gov · COMPLETED, 2011
• XUANRO4 - NATURE 3.1 - Nuovo Approccio Per la Riduzione Delle Tossine Uremiche Renali, REGIONE PUGLIA FSC 2007-2013 Ricerca. Intervento Cluster Tecnologici Regionali ClinicalTrials.gov · COMPLETED, 2017
• Evaluation of Quercetin in Type 2 Diabetes: Impact on Glucose Tolerance and Postprandial Endothelial Function ClinicalTrials.gov · COMPLETED, 2015
• A 56-Day Single-Arm Exploratory Study of NatureU® Mind Care BeautyU Caps on Crow's-Feet Wrinkle Count, Skin Hydration, and Related Skin-Aging Parameters in Adult Women ClinicalTrials.gov · COMPLETED, 2025
• A Study to Evaluate the Effects of Fixed Dose Flavonoid Isoquercetin on Thrombo-Inflammatory Biomarkers in Subjects With Stable Sickle Cell Disease ClinicalTrials.gov · COMPLETED, 2022
• A Double-Blind, Placebo-Controlled, Crossover Evaluation of a Grape Seed Extract and Quercetin Supplement (Provex CV) to Reduce Markers of Inflammatory Cytokines and Blood Pressure in Subjects With Metabolic Syndrome ClinicalTrials.gov · COMPLETED, 2011
• Effects of Hesperidin on Bone Mineral Density and Bone Metabolism of Postmenopausal Women ClinicalTrials.gov · COMPLETED, 2009
• Can Fish Oil and Phytochemical Supplements Mimic Anti-Aging Effects of Calorie Restriction? ClinicalTrials.gov · COMPLETED, 2012
• Potential Pharmacological Effects of Supplemental Quercetin in the Management of Mild to Moderate Hyperuricemia ClinicalTrials.gov · COMPLETED, 2024
• ImmuneNutrition Against Pediatric Respiratory Allergies: Results From the INAPRA Trial ClinicalTrials.gov · COMPLETED, 2025
• Effectiveness of a 3-months Dietary Supplementation Based on Quercetin Phytosome®) for the Treatment of Chronic Fatigue Symptoms ClinicalTrials.gov · COMPLETED, 2023
• The Effectiveness of Phytotherapy in the Treatment of SARS-COV2 (COVID-19) ClinicalTrials.gov · COMPLETED, 2021
• An Open-Label, Randomized, Double Arm, Phase 2 Study to Evaluate the Safety and Efficacy of C and RQC for Preventing Progression in Age-Related Macular Degeneration ClinicalTrials.gov · COMPLETED, 2024
• Shanghai Meiji Health Science and Technology Co., Ltd ClinicalTrials.gov · COMPLETED, 2009
• Inhibition of Intestinal Glucose Absorption by the Bioflavonoid Quercetin in the Obese and in Obese Type 2 Diabetics ClinicalTrials.gov · COMPLETED, 2021
• Fortifying Healthy Behaviors, Optimizing Medical Therapies and Enhancing Cognitive Function in Older Adults-pilot Study ClinicalTrials.gov · COMPLETED, 2026
• Evaluation of a Quercetin/Curcumin-Based Supplement for Mild to Moderate Long COVID-19 Symptoms: A Pragmatic, Interventional Clinical Study ClinicalTrials.gov · COMPLETED, 2025
• Improving Physical Ability and Cellular Senescence Elimination in HIV ClinicalTrials.gov · COMPLETED, 2026
• Study on the Effects of Epicatechin and Quercetin Supplementation on Vascular Function and Blood Pressure in Untreated (Pre)Hypertensive Subjects ClinicalTrials.gov · COMPLETED, 2013
• Bilberry as a Dietary Supplement After Myocardial Infarction (The BEAR SMART Trial) ClinicalTrials.gov · COMPLETED, 2015
• Effectiveness of Quercetin In The Treatment of SARS-COV 2 ClinicalTrials.gov · COMPLETED, 2021
• The Efficacy of Quercetin Supplementation on Bone Turnover Markers, Inflammatory Markers, Body Composition, and Physical Function in Post-Menopausal Women ClinicalTrials.gov · COMPLETED, 2020
• Effects of the Anti-inflammatory Flavonoid Luteolin on Behavior in Children With Autism Spectrum Disorders ClinicalTrials.gov · COMPLETED, 2013
• Senolytics To Alleviate Mobility Issues and Neurological Impairment in Aging ClinicalTrials.gov · COMPLETED, 2024
• A Comparative Randomized Clinical Study on Covid-19 Positive Hospitalized Patients Supplemented With NASAFYTOL ClinicalTrials.gov · COMPLETED, 2022