Effects of Quercetin Supplementation on Oxidative Stress, Blood Pressure, Aerobic Power, Concentric Pathologic Hypertrophy and Cardiac Function in Men with Hypertension and Coronary Artery Disease After Percutaneous Coronary Intervention: a Randomized, Double-Blind Placebo-Controlled Trial
Bibliographic record
Abstract
Background and Objectives:The aim of this study was to investigate possible effects of quercetin supplementation on oxidative stress, blood pressure, aerobic power, concentric pathologic hypertrophy and cardiac function in men with hypertension and coronary artery disease (CAD) after percutaneous coronary intervention (PCI). Materials and Methods:The present study was a randomized, double-blind clinical trial; in which, 24 men with hypertension and CAD after PCI (aged 40-60 years) were participated.Patients were prescribed quercetin (250 mg/day) or placebo for two months.Plasma total antioxidant capacity (TAC) and malondialdehyde (MDA) were assessed using colorimetric methods as well as left ventricular diastolic dysfunction (LVDD), p wave depression (PWD), ejection fraction (EF) and E/A using echocardiography and WRp using Storer-Davise cycle test.Systolic and diastolic blood pressures were measured before and after the intervention.Data were analyzed using ANCOVA and paired-sample T-test.Results: Supplementation resulted in a significant improvement in oxidative stress reduction (TAC increased and MDA decreased), systolic and diastolic blood pressures, systolic (EF) and diastolic (E/A) functions and aerobic power, compared to pretest and placebo groups following eight weeks of treatment (p < 0.05).A small decrease in RWT was seen in quercetin group at the end of intervention with no statistical significance (p > 0.05).The RWT was not significantly different between the quercetin and placebo groups (p > 0.05). Conclusions:Quercetin supplementation can improve oxidative stress, blood pressure, left ventricular function and aerobic power in men with hypertension and CAD after PCI.However, this includes no effects on concentric pathologic hypertrophy.Further studies are necessary to verify effects of quercetin supplementation on left ventricular hypertrophy in humans.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.003 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".