Evidence map›Paper›PMID 22855341›Full record

Trial reportThe Journal of clinical endocrinology and metabolism2012

A Mediterranean diet enriched with olive oil is associated with higher serum total osteocalcin levels in elderly men at high cardiovascular risk.

José Manuel Fernández-Real, Mónica Bulló, José Maria Moreno-Navarrete, Wifredo Ricart, Emilio Ros, Ramon Estruch, Jordi Salas-Salvadó

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of clinical endocrinology and metabolism, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed, 8 pooled it
7.1field-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

51 citing papers in PubMed, 8 syntheses or guidelines pooled it, 91 citations in OpenAlex.

  1. Pooled it
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  4. Reduction in saturated fat intake for cardiovascular disease.The Cochrane database of systematic reviews · 2020
    Pooled it
  5. Reduction in saturated fat intake for cardiovascular disease.The Cochrane database of systematic reviews · 2020
    Pooled it
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  9. Trial
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  12. Review
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  14. The Link Between the Gut Microbiome and Bone Metastasis.International journal of molecular sciences · 2024
    Review
  15. Review
  16. Review
  17. Review
  18. Influence of the Mediterranean Diet on Healthy Aging.International journal of molecular sciences · 2023
    Review
  19. Review
  20. Article
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

7 authors at 6 institutions in 1 country.

José Manuel Fernández-RealDiabetes, Endocrinology, and Nutrition Unit, Hospital Dr. Josep Trueta, Carretera de França s/n, 17007 Girona, Spain. jmfreal@idibgi.org
Mónica Bulló
José Maria Moreno-Navarrete
Wifredo Ricart
Emilio Ros
Ramon Estruch
Jordi Salas-Salvadó
Instituto de Salud Carlos III · ESConsorci Institut D'Investigacions Biomediques August Pi I Sunyer · ESHospital Universitari de Girona Doctor Josep Trueta · ESInstitut d'Investigació Biomèdica de Girona · ESInstitut d'Investigació Sanitària Pere Virgili · ESSpanish Biomedical Research Centre in Physiopathology of Obesity and Nutrition · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe intake of olive oil has been related to the prevention of osteoporosis in experimental and in in vitro models. Very few prospective studies have evaluated the effects of olive oil intake on circulating osteocalcin (OC) in humans.

objectiveThe objective of the study was to examine the longitudinal effects of a low-fat control diet (n=34), a Mediterranean diet enriched with nuts (MedDiet+nuts, n=51), or a Mediterranean diet enriched with virgin olive oil (MedDiet+VOO, n=42) on circulating forms of OC and bone formation markers in elderly men at high cardiovascular risk.

designLongitudinal associations between baseline and follow-up (2 yr) measurements of total OC, undercarboxylated osteocalcin, C-telopeptide of type I collagen, and procollagen I N-terminal propeptide (P1NP) concentrations were examined in 127 elderly men randomized to three healthy dietary interventions.

resultsBaseline characteristics (age, body mass index, waist circumference, lipid profile, fasting insulin levels, and bone formation and resorption markers) were similar in all intervention groups. The total osteocalcin concentration increased robustly in the MedDiet+VOO group (P=0.007) in parallel to increased P1NP levels (P=0.01) and homeostasis model assessment-β-cell function (P=0.01) but not in subjects on the MedDiet+nuts (P=0.32) or after the control diet (P=0.74). Interestingly, the consumption of olives was associated positively with both baseline total osteocalcin (r=0.23, P=0.02) and the 2-yr osteocalcin concentrations (r=0.21, P=0.04) in the total cohort.

conclusionsConsumption of a Mediterranean diet enriched with virgin olive oil for 2 years is associated with increased serum osteocalcin and P1NP concentrations, suggesting protective effects on bone.

Indexed as

Diet, MediterraneanAgedAged, 80 and overAgingBiomarkersCardiovascular DiseasesCollagen Type IDiet, Fat-RestrictedHomeostasisHumansLongitudinal StudiesMaleMiddle AgedNutsOlive OilOsteocalcinBiomarkersCollagen Type Icollagen type I trimeric cross-linked peptideOlive OilOsteocalcinPeptidesPlant Oils

Identifiers

PMID22855341
PMCPMC3462931
OpenAlexW2150202491

What OpenQuestion holds

Textmetadata
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.