Trial reportEuropean journal of nutrition2023
The polyphenol epigallocatechin gallate lowers circulating catecholamine concentrations and alters lipid metabolism during graded exercise in man: a randomized cross-over study.
Trial report in European journal of nutrition, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 7 citations in OpenAlex.
- (Poly)phenols: Mechanisms of action and efficacy of contemporary supplements for exercise recovery and performance.Experimental physiology · 2026Review
- Bridging Psychological Stress and Skin Cellular Aging: Flavonoids as a Dual-Action Therapeutic Strategy.Phytotherapy research : PTR · 2026Review
- Obesity and Natural Products: Mechanisms, Therapeutic Potential, and Future Directions.Food science & nutrition · 2026Review
- Flavonoids for gastrointestinal tract local and associated systemic effects: A review of clinical trials and future perspectives.Journal of advanced research · 2025Review
- Catechins and Human Health: Breakthroughs from Clinical Trials.Molecules (Basel, Switzerland) · 2025Review
- The pharmacological effects and therapeutic potential of flavonoids in digestive diseases.Frontiers in pharmacology · 2025Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposePhysical exercise is shown to mitigate catecholamine metabolites; however, it is unknown if exercise-induced increases in sympatho-adrenal activity or catecholamine metabolites are influenced by ingestion of specific catechins found within green tea. This study explored the impact of epigallocatechin gallate (EGCG) ingestion on catecholamine metabolism during graded cycle exercise in humans.
methodsEight males (22.4 ± 3.3 years, BMI:25.7 ± 2.4 kg.m
resultsResting catecholamine and metanephrines were similar between trials. Plasma adrenaline (AD) was lower in ECGC treatment group between trials at FATpeak (P < 0.05), LT (P < 0.001) and VO
conclusionAcute EGCG supplementation reduced circulating catecholamines but not; metanephrine, glucose or lactates, response to graded exercise. Lower circulating catecholamines may explain a lower lipid oxidation rate.
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What OpenQuestion holds
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.