Evidence map›Paper›PMID 24651160›Full record

Trial reportPloS one2014

Effects of 1-year intervention with a Mediterranean diet on plasma fatty acid composition and metabolic syndrome in a population at high cardiovascular risk.

Jordi Mayneris-Perxachs, Aleix Sala-Vila, Maribel Chisaguano, Ana I Castellote, Ramón Estruch, María Isabel Covas, Montserrat Fitó, Jordi Salas-Salvadó, Miguel A Martínez-González, Rosa Lamuela-Raventós and 3 more

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 4 pooled it
10.0field-weighted citation impact, top 2% 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

35 citing papers in PubMed, 4 syntheses or guidelines pooled it, 75 citations in OpenAlex.

  1. Pooled it
  2. Effects of total fat intake on body fatness in adults.The Cochrane database of systematic reviews · 2020
    Pooled it
  3. Pooled it
  4. Effects of total fat intake on body weight.The Cochrane database of systematic reviews · 2015
    Pooled it
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  16. Effects of the Mediterranean diet on the components of metabolic syndrome.Journal of preventive medicine and hygiene · 2022
    Review
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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

13 authors at 6 institutions in 1 country.

Jordi Mayneris-PerxachsDepartment of Nutrition and Food Science-XARTA-INSA, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain.
Aleix Sala-VilaLipid Clinic, Endocrinology and Nutrition Service, Biomedical Research Institute August Pi i Sunyer (IDIBAPS), Hospital Clínic, Barcelona, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
Maribel ChisaguanoDepartment of Nutrition and Food Science-XARTA-INSA, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
Ana I CastelloteDepartment of Nutrition and Food Science-XARTA-INSA, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
Ramón EstruchDepartment of Internal Medicine, Hospital Clínic, Barcelona, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
María Isabel CovasCardiovascular Epidemiology Unit, Municipal Institut for Medical Research, Barcelona, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
Montserrat FitóCardiovascular Epidemiology Unit, Municipal Institut for Medical Research, Barcelona, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
Jordi Salas-SalvadóHuman Nutrition Unit, Faculty of Medicine, IISPV, University Rovira i Virgili, Reus, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
Miguel A Martínez-GonzálezDepartment of Preventive Medicine and Public Health, School of Medicine, University of Navarra, Pamplona, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
Rosa Lamuela-RaventósDepartment of Nutrition and Food Science-XARTA-INSA, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
Emilio RosLipid Clinic, Endocrinology and Nutrition Service, Biomedical Research Institute August Pi i Sunyer (IDIBAPS), Hospital Clínic, Barcelona, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
M Carmen López-SabaterDepartment of Nutrition and Food Science-XARTA-INSA, Faculty of Pharmacy, University of Barcelona, Barcelona, Spain; Physiopathology of Obesity and Nutrition (CIBEROBN), Madrid, Spain.
PREDIMED Study Investigators
Spanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition · ESConsorci Institut D'Investigacions Biomediques August Pi I Sunyer · ESMunicipal Institute for Medical Research · ESUniversitat de Barcelona · ESInstitut d'Investigació Sanitària Pere Virgili · ESUniversidad de Navarra · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND &

aimsMetabolic syndrome (MetS) has become an important public concern due to its increasing prevalence. An altered fatty acid composition has been associated with MetS, but the Mediterranean diet has been shown to have a protective effect. The aim of the present study was to analyze the influence of a Mediterranean dietary pattern, as assessed by the biomarkers of food supplied, on the plasma fatty acid composition and its relation with MetS after 1 year of intervention.

methodsA total of 424 subjects were randomly selected from the PREDIMED randomized dietary trial after completing a 1-year intervention program. Participants aged 55 to 80 years and at high risk of cardiovascular disease were randomly assigned to three dietary interventions: Mediterranean diet supplemented with virgin olive oil or nuts, or a low-fat diet.

resultsAfter 1 year of intervention participants in the virgin olive oil group showed significantly increased plasma concentrations of palmitic and oleic acids, but reduced proportions of margaric, stearic, and linoleic acids. In turn, subjects in the nut group showed significantly increased levels of palmitic, linoleic, and α-linolenic acids, but reduced proportions of myristic, margaric, palmitoleic, and dihommo-γ-linoleic acids. Increases in the biomarkers of foods supplied to the Mediterranean diet groups, i.e., oleic and α-linolenic acids, were beneficially associated with the incidence, reversion and prevalence of MetS. No weight changes were observed among participants.

conclusionsThe nut and olive oil diets induced a fatty acid composition that has been shown to be beneficial in the face of MetS. Therefore, a Mediterranean diet rich in fats of vegetable origin may be a useful tool for the management of MetS without the need for concerns over weight gain due to its high fat content.

trial registrationControlled-Trials.com ISRCTN35739639.

Indexed as

Diet, MediterraneanAgedCardiovascular DiseasesConfidence IntervalsFatty AcidsFemaleHumansMaleMetabolic SyndromeOdds RatioPrevalenceRisk FactorsSpainFatty Acids

Identifiers

PMID24651160
PMCPMC3961210
OpenAlexW1997270477

What OpenQuestion holds

Textmetadata
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.