Evidence map›Paper›PMID 34749668›Full record

Trial reportBMC cardiovascular disorders2021

Effect of n-3 polyunsaturated fatty acids on ischemic heart disease and cardiometabolic risk factors: a two-sample Mendelian randomization study.

Bayi Xu, Zhixia Xu, Duanmin Xu, Xuerui Tan

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC cardiovascular disorders, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.3field-weighted citation impact, top 21% 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

9 citing papers in PubMed, 15 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Bayi XuDepartment of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, Guangdong, China.
Zhixia XuDepartment of Medical Service, Second Affiliated Hospital of Shantou University Medical College, Shantou, 515041, Guangdong, China.
Duanmin XuDepartment of Cardiology, First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, Guangdong, China.
Xuerui TanClinical Research Center, First Affiliated Hospital of Shantou University Medical College, Shantou, 515041, Guangdong, China. xueruitan@sina.com.ORCID 0000-0002-3707-6661
Shantou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe cardioprotective ability of n-3 polyunsaturated fatty acids (PUFAs) is controversial. Most studies suggest a specific role for PUFAs in cardioprotection from ischemic heart disease (IHD). However, few studies have used genetic biomarkers of n-3 PUFAs to examine their potential relationships with IHD. This study aimed to use Mendelian randomization to evaluate whether genetically-predicted n-3 PUFAs affect IHD and cardiometabolic risk factors (CRFs).

methodsGenetic variants strongly (p < 5 × 10

resultsGenetically-predicted higher ALA was associated with lower risk of IHD, type 2 diabetes (T2D), and lower serum lipids. The effect size per 0.05-unit increase (about 1 standard deviation) in plasma ALA level) was - 1.173 (95% confidence interval - 2.214 to - 0.133) for IHD. DPA and EPA had no association with IHD but were associated with a higher risk of T2D, higher levels of lipids or WHR. DHA had no association with IHD or CRFs.

conclusionsOur study suggests a benefit of ALA for IHD and its main risk factors. DHA, DPA, and EPA had no association with IHD but were partly associated with increasing cardiometabolic risk factors.

Indexed as

Cardiometabolic Risk Factorsalpha-Linolenic AcidFatty Acids, Omega-3Genetic Predisposition to DiseaseGenome-Wide Association StudyHumansLipidsMendelian Randomization AnalysisMeta-Analysis as TopicMyocardial Ischemiaalpha-Linolenic AcidFatty Acids, Omega-3LipidsCardiometabolic risk factorsIschemic heart diseaseMendelian randomizationN-3 polyunsaturated fatty acids

Identifiers

PMID34749668
PMCPMC8576934
OpenAlexW3214689455

What OpenQuestion holds

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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.