Evidence map›Paper›PMID 31796528›Full record

ArticleNeurology2020

Prediagnostic plasma polyunsaturated fatty acids and the risk of amyotrophic lateral sclerosis.

Éilis J O'Reilly, Kjetil Bjornevik, Jeremy D Furtado, Laurence N Kolonel, Loic Le Marchand, Marjorie L McCullough, Victoria L Stevens, Aladdin H Shadyab, Linda Snetselaar, JoAnn E Manson and 1 more

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in Neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

14 citing papers in PubMed, 24 citations in OpenAlex.

  1. Prevalence and impact of comorbidities in amyotrophic lateral sclerosis.Journal of neural transmission (Vienna, Austria : 1996) · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 1 country.

Éilis J O'ReillyFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA. poeor@channing.harvard.edu.
Kjetil BjornevikFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Jeremy D FurtadoFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Laurence N KolonelFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Loic Le MarchandFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Marjorie L McCulloughFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Victoria L StevensFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Aladdin H ShadyabFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Linda SnetselaarFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
JoAnn E MansonFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Alberto AscherioFrom the Departments of Nutrition (É.J.O., K.B., J.D.F., A.A.) and Epidemiology (J.E.M., A.A.), Harvard T.H. Chan School of Public Health, Boston, MA; School of Public Health (É.J.O.), College of Medicine, University College Cork, Ireland; Epidemiology Program (L.N.K., L.L.M.), University of Hawaii Cancer Center, Honolulu; Behavioral and Epidemiology Research Group (M.L.M., V.L.S.), American Cancer Society, Atlanta, GA; Family Medicine and Public Health (A.H.S.), School of Medicine, University of California San Diego; Department of Epidemiology (L.S.), College of Public Health, University of Iowa, Iowa City; and Department of Medicine (J.E.M.) and Channing Division of Network Medicine (J.E.M., A.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
Cancer Center of Hawaii · USUniversity of Iowa · USUniversity of Hawaii System · USUniversity of California, San Diego · USUniversity of Hawaii Cancer Center

Funding

Understanding Population Differences in Cancer: The MEC StudyU01CA164973 · NCI · UNIVERSITY OF HAWAII AT MANOA · PI HAIMAN, CHRISTOPHER ALAN, LE MARCHAND, LOIC · 2015 to 2025
$37.4M
Long Term Multidisciplinary Study of Cancer in Women: The Nurses Health StudyUM1CA186107 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI ELIASSEN, A. HEATHER, STAMPFER, MEIR · 2014 to 2023
$22.3M
Cancer Epidemiology Cohort in Male Health ProfessionalsUM1CA167552 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI WILLETT, WALTER C. · 2012 to 2016
$11.5M
BIOCHEMICAL MARKERS IN THE NURSES'HEALTH STUDY COHORTR01CA049449 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI HANKINSON, SUSAN E · 1989 to 2008
$11.3M
Prospective study of biomarkers and risk factors for ALS incidence and progressioR01NS045893 · NINDS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI ASCHERIO, ALBERTO · 2003 to 2016
$4.0M
NCI NIH HHS R01 CA049449NCI NIH HHS U01 CA164973NCI NIH HHS UM1 CA167552NCI NIH HHS UM1 CA186107NHLBI NIH HHS HHSN268201600001CNHLBI NIH HHS HHSN268201600002CNHLBI NIH HHS HHSN268201600003CNHLBI NIH HHS HHSN268201600004CNHLBI NIH HHS HHSN268201600018CNINDS NIH HHS R01 NS045893
6 · The paper itself

Abstract

objectiveTo examine the association between prediagnostic plasma polyunsaturated fatty acids levels (PUFA) and amyotrophic lateral sclerosis (ALS).

methodsWe identified 275 individuals who developed ALS while enrolled in 5 US prospective cohorts, and randomly selected 2 controls, alive at the time of the case diagnosis, matched on cohort, birth year, sex, ethnicity, fasting status, and time of blood draw. We measured PUFA, expressed as percentages of total fatty acids, using gas liquid chromatography and used conditional logistic regression to estimate risk ratios (RR) and 95% confidence intervals (CI) for the association between PUFA and ALS.

resultsThere was no association between total, n-3, and n-6 PUFA, eicosapentaenoic acid, or docosapentaenoic acid levels and ALS. Higher plasma α-linolenic acid (ALA) in men was associated with lower risk of ALS in age- and matching factor-adjusted analyses (top vs bottom quartile: RR = 0.21 [95% CI 0.07, 0.58],

conclusionsThe majority of individual PUFAs were not associated with ALS. In men, ALA was inversely and DHA was positively related to risk of ALS, while in women arachidonic acid was positively related. These findings warrant confirmation in future studies.

Indexed as

AgedAmyotrophic Lateral SclerosisBiomarkersFatty Acids, UnsaturatedFemaleHumansMaleMiddle AgedProdromal SymptomsRisk FactorsSex FactorsBiomarkersFatty Acids, Unsaturated

Identifiers

PMID31796528
PMCPMC7136057
OpenAlexW2992564027

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.