Evidence map›Paper›PMID 28542024›Full record

ArticleThe Clinical journal of pain2018

Omega-6: Omega-3 PUFA Ratio, Pain, Functioning, and Distress in Adults With Knee Pain.

Kimberly T Sibille, Christopher King, Timothy J Garrett, Toni L Glover, Hang Zhang, Huaihou Chen, Divya Reddy, Burel R Goodin, Adriana Sotolongo, Megan E Petrov and 8 more

Registry-linked trialAbstract read
In one paragraph

Article in The Clinical journal of pain, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06580912 (Krill Oil for Pain and Physical Function in Older Adults), which is not on this map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
2.1field-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.

NCT06580912 phase2completednot on this mapstarted 2025, after this paper: background citation

Krill Oil for Pain and Physical Function in Older Adults

TypeinterventionalSponsorUniversity of FloridaRan2025 to 2025Enrolled40ConditionsChronic Musculoskeletal PainArmsKrill oil, Mixed vegetable oil
3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 54 citations in OpenAlex.

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  8. Polyunsaturated fatty acids suppress PIEZO ion channel mechanotransduction in articular chondrocytes.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
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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

18 authors at 6 institutions in 1 country.

Kimberly T SibilleDepartments of Aging & Geriatric Research.
Christopher KingDepartment of Anesthesia, Cincinnati Children's Hospital, Cincinnati, OH.
Timothy J GarrettPathology, Immunology, and Laboratory Medicine.
Toni L GloverPain Research & Intervention Center of Excellence, University of Florida, Gainesville, FL.
Hang ZhangBiostatistics.
Huaihou ChenBiostatistics.
Divya ReddyPain Research & Intervention Center of Excellence, University of Florida, Gainesville, FL.
Burel R GoodinDepartment of Psychology.
Adriana SotolongoMedicine/Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham.
Megan E PetrovCollege of Nursing and Health Innovation, Arizona State University, Phoenix, AZ.
Yenisel Cruz-AlmeidaDepartments of Aging & Geriatric Research.
Matthew HerbertCenter of Excellence for Stress and Mental Health (CESAMH), VA San Diego Healthcare System, and University of California, San Diego, CA.
Emily J BartleyPain Research & Intervention Center of Excellence, University of Florida, Gainesville, FL.
Jeffrey C EdbergMedicine/Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham.
Roland StaudMedicine.
David T ReddenBiostatistics Department, School of Public Health University of Alabama at Birmingham, Birmingham, AL.
Laurence A BradleyMedicine/Division of Clinical Immunology and Rheumatology, University of Alabama at Birmingham.
Roger B FillingimPain Research & Intervention Center of Excellence, University of Florida, Gainesville, FL.
University of Florida · USCancer Research And Biostatistics · USCincinnati Children's Hospital Medical Center · USGeriatric Research Education and Clinical Center · USNeurobehavioral Systems · USUniversity of Alabama at Birmingham · US

Funding

Using social networks to map and evaluate team science across CTSA hubsUL1TR001427 · NCATS · UNIVERSITY OF FLORIDA · PI MITCHELL, DUANE A. · 2015 to 2024
$37.2M
UAB Center for Clinical and Translational Science (CCTS)UL1TR001417 · NCATS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI KIMBERLY, ROBERT P. · 2015 to 2018
$31.4M
University of Florida Older Americans Independence Center (OAIC)P30AG028740 · NIA · UNIVERSITY OF FLORIDA · PI CHRISTIAAN LEEUWENBURGH · 2007 to 2026
$22.8M
Ethnic Differences in Responses to Painful StimuliR37AG033906 · NIA · UNIVERSITY OF FLORIDA · PI FILLINGIM, ROGER B · 2014 to 2023
$12.9M
UF Clinical and Translational Science AwardUL1TR000064 · NCATS · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2012 to 2014
$12.2M
UAB Center for Clinical and Translational Science (CCTS) UL1UL1TR000165 · NCATS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI KIMBERLY, ROBERT P. · 2012 to 2013
$9.6M
Ethnic Differences in Responses to Painful StimuliR01AG033906 · NIA · UNIVERSITY OF FLORIDA · PI FILLINGIM, ROGER B · 2009 to 2013
$4.5M
UF Clinical and Translational Science AwardKL2TR000065 · NCATS · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2012 to 2014
$1.6M
Neuroimaging Age-Related Changes i Pain ModulationK01AG048259 · NIA · UNIVERSITY OF FLORIDA · PI CRUZ-ALMEIDA, YENISEL · 2015 to 2019
$831k
Physiological correlates of endogenous pain mod in healthy individuals with TMJDR00DE022368 · NIDCR · CINCINNATI CHILDRENS HOSP MED CTR · PI KING, CHRISTOPHER D · 2015 to 2017
$718k
Biological Markers of System Burden in Symptomatic Knee OA: A Prospective StudyK23AR062099 · NIAMS · UNIVERSITY OF FLORIDA · PI SIBILLE, KIMBERLY THERESA · 2013 to 2016
$473k
Physiological correlates of endogenous pain modulation in healthy individuals andK99DE022368 · NIDCR · UNIVERSITY OF FLORIDA · PI KING, CHRISTOPHER D · 2012 to 2013
$255k
NCATS NIH HHS KL2 TR000065NCATS NIH HHS UL1 TR000064NCATS NIH HHS UL1 TR000165NCATS NIH HHS UL1 TR001417NCATS NIH HHS UL1 TR001427NIAMS NIH HHS K23 AR062099NIA NIH HHS K01 AG048259NIA NIH HHS K99 AG052642NIA NIH HHS L30 AG043172NIA NIH HHS P30 AG028740NIA NIH HHS R01 AG033906NIA NIH HHS R37 AG033906NIDCR NIH HHS K99 DE022368NIDCR NIH HHS R00 DE022368NIMHD NIH HHS L60 MD010798
6 · The paper itself

Abstract

objectivesOsteoarthritis (OA) is associated with inflammation, chronic pain, functional limitations, and psychosocial distress. High omega-3 (n-3) polyunsaturated fatty acids (PUFAs) are associated with lower levels of inflammatory mediators, anti-nociception, and adaptive cognitive/emotional functioning. High omega-6 (n-6) PUFAs are associated with inflammation, nociception, and psychological distress. While findings related to n-3 supplementation in knee OA are mixed, consideration of the n-6:n-3 ratio and additional outcome measures may provide improved understanding of the potential relevance of these fatty acids in OA. On the basis of recommended and typical ranges of the n-6:n-3 ratio, we hypothesized that in adults with knee pain, those with a high n-6:n-3 ratio would have greater pain/functional limitations, experimental pain sensitivity, and psychosocial distress compared with those with a low n-6:n-3 ratio. MATERIALS AND

methodsA cross-sectional investigation of clinical and experimental pain and physical and psychosocial functioning was completed in 167 adults ages 45 to 85 meeting knee OA screening criteria. Blood samples were collected and the plasma n-6:n-3 PUFA ratio determined. Quartile splits were computed and low (n=42) and high (n=41) ratio groups were compared.

resultsThe high ratio group reported greater pain and functional limitations, (all Ps<0.04), mechanical temporal summation (hand and knee, P<0.05), and perceived stress (P=0.008) but not depressive symptoms. DISCUSSION: In adults with knee pain, a high n-6:n-3 ratio is associated with greater clinical pain/functional limitations, experimental pain sensitivity, and psychosocial distress compared with a low ratio group. Findings support consideration of the n-6:n-3 PUFA ratio and additional clinical endpoints in future research efforts.

Indexed as

AgedAged, 80 and overArthralgiaBiomarkersCross-Sectional StudiesFatty Acids, Omega-3Fatty Acids, Omega-6FemaleHumansMaleMiddle AgedOsteoarthritis, KneePain MeasurementPain ThresholdStress, PsychologicalBiomarkersFatty Acids, Omega-3Fatty Acids, Omega-6

Identifiers

PMID28542024
PMCPMC5701880
OpenAlexW2617559128

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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.