Evidence map›Paper›PMID 33639967›Full record

Trial reportJournal of the International Society of Sports Nutrition2021

Tomato powder is more effective than lycopene to alleviate exercise-induced lipid peroxidation in well-trained male athletes: randomized, double-blinded cross-over study.

Farhad Gholami, Jose Antonio, Cassandra Evans, Khadijeh Cheraghi, Leila Rahmani, Fatemeh Amirnezhad

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of the International Society of Sports Nutrition, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
2.2field-weighted citation impact, top 12% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 30 citations in OpenAlex.

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  13. Oat (Molecules (Basel, Switzerland) · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 2 countries.

Farhad GholamiFaculty of Sport Sciences, Shahrood University of Technology, Shahrood, Semnan, Iran. Gholami-Fa@shahroodut.ac.ir.ORCID http://orcid.org/0000-0002-9037-2259
Jose AntonioDepartment of Health and Human Performance, Nova Southeastern University, Davie, FL, USA.
Cassandra EvansDepartment of Nutrition, Nova Southeastern University, Davie, FL, USA.
Khadijeh CheraghiFaculty of Sport Sciences, Shahrood University of Technology, Shahrood, Semnan, Iran.
Leila RahmaniFaculty of Sport Sciences, Shahrood University of Technology, Shahrood, Semnan, Iran.
Fatemeh AmirnezhadFaculty of Sport Sciences, Shahrood University of Technology, Shahrood, Semnan, Iran.
University of Shahrood · IRSoutheastern University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundConsumption of nutritional supplements to optimize recovery is gaining popularity among athletes. Tomatoes contain micronutrients and various bioactive components with antioxidant properties. Many of the health benefits of tomatoes have been attributed to lycopene encouraging athletes to consume pure lycopene supplements. The aim of this study was to compare the effect of tomato powder and lycopene supplement on lipid peroxidation induced by exhaustive exercise in well-trained male athletes.

methodsEleven well-trained male athletes participated in a randomized, double-blinded, crossover study. Each subject underwent three exhaustive exercise tests after 1-week supplementation of tomato powder (each serving contained 30 mg lycopene, 5.38 mg beta-carotene, 22.32 mg phytoene, 9.84 mg phytofluene), manufactured lycopene supplement (30 mg lycopene), or placebo. Three blood samples (baseline, post-ingestion and post-exercise) were collected to assess total anti-oxidant capacity (TAC) and variables of lipid peroxidation including malondialdehyde (MDA) and 8-isoprostane. Data were analyzed using repeated-measures of ANOVA at P < 0.05.

resultsTomato powder enhanced total antioxidant capacity (12% increase, P = 0.04). Exhaustive exercise, regardless of supplement/ placebo, elevated MDA and 8-isoprostane levels (P < 0.001). The elevation of 8-isoprostane following exhaustive exercise was lower in the tomato powder treatment compared to the placebo (9% versus 24%, p = 0.01). Furthermore, following exhaustive exercise MDA elevated to a lower extent in tomatoe powder treatment compared to the placebo (20% versus 51%, p = 0.009). However, such differences were not indicated between lycopene and placebo treatments (p > 0.05).

conclusionBeneficial effects of tomato powder on antioxidant capacity and exercise-induced lipid peroxidation may be brought about by a synergistic interaction of lycopene with other bioactive nutrients rather than single lycopene.

Indexed as

AthletesAntioxidantsBiomarkersCross-Over StudiesDinoprostDouble-Blind MethodHumansLipid PeroxidationLycopeneMaleMalondialdehydeOxidative StressPhysical ExertionPowdersSolanum lycopersicumTime Factors8-epi-prostaglandin F2alphaAntioxidantsBiomarkersDinoprostLycopeneMalondialdehydePowdersAntioxidantsIsoprostanesLipid peroxidationMalondialdehydeOxidative stressTomatoes

Identifiers

PMID33639967
PMCPMC7912503
OpenAlexW3133850208

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.