Evidence map›Paper›PMID 28916975›Full record

Trial reportLipids2017

Flaxseed Oil Supplementation Improve Gene Expression Levels of PPAR-γ, LP(a), IL-1 and TNF-α in Type 2 Diabetic Patients with Coronary Heart Disease.

Ali Akbar Hashemzadeh, Nikoo Nasoohi, Fariba Raygan, Esmat Aghadavod, Elmira Akbari, Mohsen Taghizadeh, Mohammad Reza Memarzadeh, Zatollah Asemi

Expression of concernAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Lipids, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It carries an expression of concern. Cited by 17 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 5 pooled it
2.0field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 5 syntheses or guidelines pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Trial
  7. Trial
  8. Review
  9. The Impact of Diet on Lipoprotein(a) Levels.Life (Basel, Switzerland) · 2024
    Review
  10. Review
  11. Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Phytotherapy in the Management of Diabetes: A Review.Molecules (Basel, Switzerland) · 2018
    Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Ali Akbar HashemzadehDepartment of Molecular and Cellular Sciences, Faculty of Advanced Sciences and Technology, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran.
Nikoo NasoohiDepartment of Molecular and Cellular Sciences, Faculty of Advanced Sciences and Technology, Pharmaceutical Sciences Branch, Islamic Azad University (IAUPS), Tehran, Iran.
Fariba RayganDepartment of Cardiology, School of Medicine, Kashan University of Medical Sciences, Kashan, Islamic Republic of Iran.
Esmat AghadavodResearch Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Islamic Republic of Iran.
Elmira AkbariResearch Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Islamic Republic of Iran.
Mohsen TaghizadehResearch Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Islamic Republic of Iran.
Mohammad Reza MemarzadehBarij Medicinal Plants Research Center, Kashan, Islamic Republic of Iran.
Zatollah AsemiResearch Center for Biochemistry and Nutrition in Metabolic Diseases, Kashan University of Medical Sciences, Kashan, Islamic Republic of Iran. asemi_r@yahoo.com.
Kashan University of Medical Sciences · IRIslamic Azad University Pharmaceutical Sciences Branch · IRIranian Legal Medicine Organization · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study was carried out to determine the effects of flaxseed oil administration on gene expression levels related to insulin, lipid and inflammation in overweight diabetic patients with coronary heart disease (CHD). This randomized double-blind, placebo-controlled trial was conducted among 60 diabetic patients with CHD. Subjects were randomly allocated into two groups to intake either 1000 mg n-3 fatty acid from flaxseed oil containing 400 mg α-Linolenic acid [ALA (18:3n-3)] (n = 30) or placebo (n = 30) twice a day for 12 weeks. Gene expression related to insulin, lipid and inflammation were quantified in peripheral blood mononuclear cells (PBMC) of diabetic patients with CHD with RT-PCR method. Results of RT-PCR demonstrated that after the 12-week intervention, compared with the placebo, flaxseed oil supplementation could up-regulate gene expression of peroxisome proliferator-activated receptor gamma (PPAR-γ) (P = 0.02) in PBMC of diabetic patients with CHD. In addition, compared with the placebo, taking flaxseed oil supplements down-regulated gene expression levels of lipoprotein(a) [LP(a)] (P = 0.001), interleukin-1 (IL-1) (P = 0.001) and tumor necrosis factor alpha (TNF-α) (P = 0.02) in PBMC of diabetic patients with CHD. We did not observe any significant effect of flaxseed oil supplementation on gene expression levels of low-density lipoprotein receptor (LDLR), IL-8 and transforming growth factor beta (TGF-β) in PBMC of diabetic patients with CHD. Overall, flaxseed oil supplementation for 12 weeks in diabetic patients with CHD significantly improved gene expression levels of PPAR-γ, LP(a), IL-1 and TNF-α, but did not influence LDLR, IL-8 and TGF-β.

Indexed as

AgedCoronary DiseaseDiabetes Mellitus, Type 2Dietary SupplementsDouble-Blind MethodGene ExpressionHumansInterleukin-1Leukocytes, MononuclearLinseed OilMiddle AgedPPAR gammaTreatment OutcomeTumor Necrosis Factor-alphaInterleukin-1Linseed OilPPAR gammaTNF protein, humanTumor Necrosis Factor-alphaFlaxseed oilGene expressionInflammationInsulinLipidType 2 diabetes mellitus

Identifiers

PMID28916975
OpenAlexW2755762951

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.