Written by Joyce Smith, BS. This study found that quercetin and 3,5-dihydroxybenzoic acid (DHBA), two phytonutrients commonly found in apples, are pro-neurogenic, not only by activating precursor cell proliferation but also by promoting cell cycle exit, cellular...
Quercetin-Rich Onion Skin Extract Lowers Blood Pressure in Overweight and Obese Patients
Written by Angeline A. De Leon, Staff Writer. Study finds that supplementation with 162 mg/d quercetin from onion skin extract lowers ambulatory blood pressure (ABP) in patients with hypertension, suggesting a cardioprotective effect of quercetin. Quercetin is an...
Quercetin Lessens Obesity and Fat Associated Inflammation
Written by Marcia J. Egles, MD. Study shows that quercetin or botanical extracts containing quercetin induce white adipose tissue remodeling which may occur through inflammatory-related mechanisms. In a recent study in mice, dietary supplementation with low-dose...
Quercetin Shown to Improve Symptoms of Rheumatoid Arthritis
Written by Jessica Patella, ND. Eight weeks of supplementation with quercetin significantly reduced morning pain, activity –related pain and morning stiffness in the 50 participating arthritic women compared to the placebo group. Rheumatoid arthritis affects 1.3...
Pure Epicatechin and Quercetin May Help Reduce Endothelial Dysfunction and Inflammation in Pre-Hypertensive Patients
Written by James C. Morton Jr., Staff Writer. In a randomized placebo-controlled, double-blinded, crossover trial, clinical research study, epicatechin and quercetin significantly decreased endothelial dysfunction (10.5%) and inflammation (10.1%) serum biomarkers...
Onion Peel/Quercetin Combination May Be Effective for Weight Loss
Written by Greg Arnold, DC, CSCS. Twelve weeks of supplementation with onion peel extract and quercetin significantly improved weight, body mass index, waist and hip circumference, and total body fat in participating obese subjects compared to control. Obesity is a...
Quercetin Helps Reduce Plasma Uric Acid Levels in Pre-Hyperuricaemic Males
Written by James C. Morton Jr., Staff Writer. In a randomized, double- blind placebo- controlled, cross-over study, quercetin significantly reduces uric acid levels (7.88 or 8%) in blood plasma in 4 weeks compared to baseline and placebo group. Hyperuricemia is one...
Rutin and Quercetin Protect Bone Marrow Against Harms of Radiation Therapy
Written by Greg Arnold, DC, CSCS. Radiated mice who received quercetin and rutin had 23.6% less damage to their chromosomes than the “radiated-only” mice while the “radiated-only” mice had double the amount of chromosomes damage compared to the control group....
Quercetin with Vitamin C Improves Inflammation Levels
Written by Greg Arnold, DC, CSCS. Researchers found a 62% decrease in a marker of inflammation in a group given vitamin C and quercetin compared to placebo group. Quercetin is one of the most abundant of a type of antioxidants, called flavonoids. It is present in a...
Quercetin May Help with Endurance and Oxygen Intake
Written by Greg Arnold, DC, CSCS. Those in the quercetin group were able to ride 13.2% longer than the group without quercetin. Quercetin is one of the most abundant type of antioxidants called flavonoids, present in a wide variety of fruits, vegetables, and berries...
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