Evidence map›Paper›PMID 33933009›Full record

SynthesisBMC nephrology2021

Effect of omega-3 fatty acids supplementation on cardio-metabolic and oxidative stress parameters in patients with chronic kidney disease: a systematic review and meta-analysis.

Siavash Fazelian, Fatemeh Moradi, Shahram Agah, Akramsadat Hoseini, Hafez Heydari, Mojgan Morvaridzadeh, Amirhosein Omidi, Ana Beatriz Pizarro, Atie Ghafouri, Javad Heshmati

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC nephrology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 5% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 citations in OpenAlex.

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  12. Maternal Nutrition, Toxicants, and Epigenetic Programming of Obesity Across Generations.Diabetes, metabolic syndrome and obesity : targets and therapy · 2025
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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

10 authors at 6 institutions in 2 countries.

Siavash FazelianClinical Research Development Unit, Ayatollah Kashani Hospital, Shahrekord University of Medical Sciences, Shahrekord, Iran.
Fatemeh MoradiDepartment of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran.
Shahram AgahColorectal Research Center, Iran University of Medical Sciences, Tehran, Iran.
Akramsadat HoseiniDepartment of Education and Health Promotion,School of Health, Iran University of Medical Sciences, Tehran, Iran.
Hafez HeydariCellular and Molecular Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran.
Mojgan MorvaridzadehDepartment of Nutritional Science, School of Nutritional Science and Food Technology, Kermanshah University of Medical Sciences, Farabi Hospital, Faculty of Nutrition Sciences and Food Technology, Postal Code: 6715847141, Isar Square, Kermanshah, Iran.
Amirhosein OmidiDepartment of Nutritional Science, School of Nutritional Science and Food Technology, Kermanshah University of Medical Sciences, Farabi Hospital, Faculty of Nutrition Sciences and Food Technology, Postal Code: 6715847141, Isar Square, Kermanshah, Iran.
Ana Beatriz PizarroPontificia Universidad Javeriana, Bogotá, Colombia.
Atie GhafouriDepartment of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran. atie.ghafouri@gmail.com.
Javad HeshmatiDepartment of Nutritional Science, School of Nutritional Science and Food Technology, Kermanshah University of Medical Sciences, Farabi Hospital, Faculty of Nutrition Sciences and Food Technology, Postal Code: 6715847141, Isar Square, Kermanshah, Iran. javad.heshmati@gmail.com.ORCID 0000-0002-2676-0185
Iran University of Medical Sciences · IRKermanshah University of Medical Sciences · IRIsfahan University of Medical Sciences · IRPontificia Universidad Javeriana · COSabzevar University of Medical Sciences · IRShahrekord University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundOmega-3 fatty acids (FAs) have been suggested as a beneficial supplement in chronic kidney disease (CKD) patients, but the results of randomized clinical trials (RCTs) are controversial. We conducted a systematic review and meta-analysis to evaluate all the RCTs about the impact of omega-3 FAs supplementation on cardiometabolic outcomes and oxidative stress parameters in patients with CKD.

methodsWe performed a systematic database search in PubMed/MEDLINE, EMBASE, Scopus, Web of Science, and Cochrane Central, up to May 2020. We included all placebo-controlled randomized trials that assessed the effect of omega-3 FAs supplementation on any cardiometabolic outcomes: blood pressure, total cholesterol (TC), low-density lipoprotein (LDL) and high-density lipoprotein (HDL) or triglycerides (TG) and oxidative stress parameters. Data were pooled using DerSimonian-Laird's random-effects model.

resultsFinally, thirteen articles met the inclusion criteria for this review omega-3 FAs supplementation significantly decrease TC (SMD: -0.26; 95% CI: - 0.51, - 0.02; I

Indexed as

Cardiometabolic Risk FactorsDietary SupplementsBlood PressureCholesterolCholesterol, HDLCholesterol, LDLFatty Acids, Omega-3HumansOxidative StressRenal Insufficiency, ChronicTriglyceridesCholesterolCholesterol, HDLCholesterol, LDLFatty Acids, Omega-3TriglyceridesBlood lipidsCardio-metabolic outcomesCKDOmega-3 FAsOxidative stress

Identifiers

PMID33933009
PMCPMC8088683
OpenAlexW3158709452

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.