Evidence map›Paper›PMID 31881852›Full record

Trial reportBMC geriatrics2019

Leukocyte telomere length and serum polyunsaturated fatty acids, dietary habits, cardiovascular risk factors and features of myocardial infarction in elderly patients.

Are A Kalstad, Sjur Tveit, Peder L Myhre, Kristian Laake, Trine B Opstad, Arnljot Tveit, Erik B Schmidt, Svein Solheim, Harald Arnesen, Ingebjørg Seljeflot

Registry-linked trialOpen access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in BMC geriatrics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01841944 (Giving Omega-3 Fatty Acids to Elderly Patients Diagnosed With Acute Myocardial Infarction to Investigate the Effect on Cardiovascular Morbidity and Mortality), which is not on this map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 22% 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.

NCT01841944 nacompletednot on this map

Giving Omega-3 Fatty Acids to Elderly Patients Diagnosed With Acute Myocardial Infarction to Investigate the Effect on Cardiovascular Morbidity and Mortality

TypeinterventionalSponsorOslo University HospitalRan2012 to 2020Enrolled1,027ConditionsMyocardial Infarction, Heart Failure, Myocardial Revascularization, Atrial FibrillationArmsPikasol, Corn oil
3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Influence of the Mediterranean Diet on Healthy Aging.International journal of molecular sciences · 2023
    Review
  8. Article
  9. Progress of Clinical Evaluation for Vascular Aging in Humans.Journal of translational internal medicine · 2021
    Review
  10. Article
  11. 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

10 authors at 4 institutions in 2 countries.

Are A KalstadCenter for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevål, Postboks 4956 Nydalen, 0424, Oslo, Norway. areaka@medisin.uio.no.ORCID 0000-0003-1634-4476
Sjur TveitFaculty of Medicine, University of Oslo, Oslo, Norway.
Peder L MyhreDepartment of Cardiology, Akershus University Hospital HF, Lørenskog, Norway.
Kristian LaakeCenter for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevål, Postboks 4956 Nydalen, 0424, Oslo, Norway.
Trine B OpstadCenter for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevål, Postboks 4956 Nydalen, 0424, Oslo, Norway.
Arnljot TveitFaculty of Medicine, University of Oslo, Oslo, Norway.
Erik B SchmidtDepartment of Cardiology, Aalborg University Hospital, Aalborg, Denmark.
Svein SolheimCenter for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevål, Postboks 4956 Nydalen, 0424, Oslo, Norway.
Harald ArnesenCenter for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevål, Postboks 4956 Nydalen, 0424, Oslo, Norway.
Ingebjørg SeljeflotCenter for Clinical Heart Research, Department of Cardiology, Oslo University Hospital, Ullevål, Postboks 4956 Nydalen, 0424, Oslo, Norway.
Oslo University Hospital · NOUniversity of Oslo · NOAalborg University Hospital · DKAkershus University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTelomeres are non-coding sequences at the end of eukaryote chromosomes, which in complex with associated proteins serve to protect subtelomeric DNA. Telomeres shorten with each cell division, are regarded as a biomarker for aging and have also been suggested to play a role in atherosclerosis and cardiovascular disease (CVD). The aim of the present study was to explore the associations between leukocyte telomere length and serum polyunsaturated fatty acids, diet, cardiovascular risk factors and features of myocardial infarction (MI) in elderly patients.

methodsThe material is based upon the first 299 included patients in the OMEMI trial, where patients aged 70-82 years of age are randomized to receive omega-3 supplements or corn oil (placebo) after MI. Patients were included 2-8 weeks after the index MI. DNA was extracted from whole blood, and leukocyte telomere length (LTL) was analyzed by qPCR and reported as a number relative to a reference gene. Serum long chain polyunsaturated fatty acid (LCPUFA) content was analyzed by gas chromatography. Diet was evaluated with the validated SmartDiet food frequency questionnaire. Medical records, patient interviews and clinical examination provided previous medical history and anthropometric data. Non-parametric statistical tests were used.

resultsMedian (25, 75 percentile) LTL was 0.55 (0.42, 0.72). Patients had a median age of 75 years, 70.2% were male and 45.2% used omega-3 supplements. There was a weak, but significant correlation between LTL and linoleic acid (r = 0.139, p = 0.017), but not with other LCPUFAs. There was a trend towards longer telomeres with a healthier diet, but this did not reach statistical significance (p = 0.073). No associations were found between LTL and CVD risk factors or features of MI.

conclusionsIn our population of elderly with a recent myocardial infarction LTL was associated with linoleic acid concentrations, but not with other LCPUFAs. Patients with a healthy diet tended to have longer telomeres. The limited associations may be due to age and the narrow age-span in our population. Further studies, designed to detect longitudinal changes should be performed to explore the role of telomeres in cardiovascular aging.

trial registrationClinical trials no. NCT01841944, registration date April 29, 2013.

Indexed as

AgedAged, 80 and overAgingBiomarkersCardiovascular DiseasesCross-Sectional StudiesFatty Acids, Omega-3Fatty Acids, UnsaturatedFeeding BehaviorFemaleHumansLeukocytesMaleMyocardial InfarctionRisk FactorsTelomereBiomarkersFatty Acids, Omega-3Fatty Acids, UnsaturatedCardiovascular diseaseDietElderlyMyocardial infarctionPolyunsaturated fatty acidsTelomere length

Identifiers

PMID31881852
PMCPMC6935134
OpenAlexW2997721865

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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.