Evidence map›Paper›PMID 29765212›Full record

ArticleInternational journal of chronic obstructive pulmonary disease2018

The effect of conjugated linoleic acid on oxidative stress and matrix metalloproteinases 2 and 9 in patients with COPD.

Somaieh Matin, Ali Nemati, Hassan Ghobadi, Reza Alipanah-Moghadam, Lotfollah Rezagholizadeh

Open access · goldAbstract readControlled Clinical Trial
In one paragraph

Article in International journal of chronic obstructive pulmonary disease, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

15 citing papers in PubMed, 29 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

5 authors at 1 institution in 1 country.

Somaieh MatinDepartment of Internal Medicine, Emam Khomeini Hospital, Ardabil University of Medical Sciences, Ardabil, Iran.
Ali NematiBiochemistry and Nutrition Department, Ardabil University of Medical Sciences, Ardabil, Iran.
Hassan GhobadiDepartment of Internal Medicine (Pulmonary Division), Emam Khomeini Hospital, Ardabil University of Medical Sciences, Ardabil, Iran.
Reza Alipanah-MoghadamDepartment of Biochemistry, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
Lotfollah RezagholizadehDepartment of Biochemistry, School of Medicine, Ardabil University of Medical Sciences, Ardabil, Iran.
Ardabil University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Natural antioxidants in foods may be used in prevention and treatment of oxidative stress and inflammation in COPD. Therefore, this study aimed to evaluate the effect of conjugated linoleic acid (CLA) supplement as natural antioxidants on oxidative stress levels, and MMP2 and MMP9 serum levels in COPD patients. Materials and methods: This clinical trial study was conducted on 90 (supplement group=45 and control group=45) COPD patients in Ardabil city, Iran, in 2015. After obtaining written consent, general information was collected from each patient using a validated and reliable questionnaire. Supplement group received 3.2 g of CLA and those in the control group were given 3.2 g of placebo for 6 weeks on a daily basis. Fasting blood samples were taken from all of the patients for testing of malondialdehyde (MDA), MMP2, and MMP9 levels at the beginning and end of the study. Data were analyzed using Kolmogorov-Smirnov test, independent samples Results: There were no significant differences between the two groups with regard to mean age, smoking status, and serum level of MDA at the beginning of the study. In the supplement group, the serum level of MDA decreased significantly at the end of the 6th week compared to that in the beginning of the study ( Conclusion: These findings indicated that CLA supplementation may be helpful for COPD patients through inhibiting the production of oxidative stress and controlling MMP9 serum levels.

Indexed as

AdultAgedAged, 80 and overAntioxidantsBiomarkersDouble-Blind MethodFemaleHumansIranLinoleic Acids, ConjugatedMaleMalondialdehydeMatrix Metalloproteinase 2Matrix Metalloproteinase 9Middle AgedOxidative StressAntioxidantsBiomarkersLinoleic Acids, ConjugatedMalondialdehydeMatrix Metalloproteinase 2Matrix Metalloproteinase 9MMP2 protein, humanMMP9 protein, humanCLACOPDMMP2MMP9oxidative stress

Identifiers

PMID29765212
PMCPMC5939916
OpenAlexW2800499405

What OpenQuestion holds

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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.