Evidence map›Paper›PMID 29318639›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2018

Interaction between caffeine and polymorphisms of glutamate ionotropic receptor NMDA type subunit 2A (GRIN2A) and cytochrome P450 1A2 (CYP1A2) on Parkinson's disease risk.

Iris Y Kim, Éilis J O'Reilly, Katherine C Hughes, Xiang Gao, Michael A Schwarzschild, Marjorie L McCullough, Marian T Hannan, Rebecca A Betensky, Alberto Ascherio

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.2field-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.

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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Journal of clinical medicine · 2021
    Article
  9. Do caffeine and more selective adenosine AParkinsonism & related disorders · 2020
    Review
  10. Caffeine induces neurobehavioral effects through modulating neurotransmitters.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2020
    Review
  11. Review
  12. Glutamate ionotropic receptor NMDA type subunit 2A (Aging medicine (Milton (N.S.W)) · 2019
    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

9 authors at 5 institutions in 2 countries.

Iris Y KimDepartment of Epidemiology, Harvard T. H. School Chan School of Public Health, Boston, Massachusetts, USA.
Éilis J O'ReillyDepartment of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA.
Katherine C HughesDepartment of Nutrition, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA.
Xiang GaoDepartment of Nutritional Sciences, The Pennsylvania State University, University Park, Pennsylvania, USA.
Michael A SchwarzschildMassGeneral Institute for Neurodegenerative Disease, Massachusetts General Hospital, Boston, Massachusetts, USA.
Marjorie L McCulloughDepartment of Epidemiology, Harvard T. H. School Chan School of Public Health, Boston, Massachusetts, USA.
Marian T HannanThe Institute for Aging Research, Hebrew Senior Life, Boston, Massachusetts, USA.
Rebecca A BetenskyDepartment of Biostatistics, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA.
Alberto AscherioDepartment of Epidemiology, Harvard T. H. School Chan School of Public Health, Boston, Massachusetts, USA.
Harvard University · USAmerican Cancer Society · USBeth Israel Deaconess Medical Center · USMaineGeneral Medical Center · USPennsylvania State University · US

Funding

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 ProfessionalsU01CA167552 · NCI · HARVARD UNIVERSITY D/B/A HARVARD SCHOOL OF PUBLIC HEALTH · PI Lorelei Mucci, Walter C. Willett · 2017 to 2026
$17.0M
Cancer Epidemiology Cohort in Male Health ProfessionalsUM1CA167552 · NCI · HARVARD SCHOOL OF PUBLIC HEALTH · PI WILLETT, WALTER C. · 2012 to 2016
$11.5M
NCI NIH HHS U01 CA167552NCI NIH HHS UM1 CA167552NCI NIH HHS UM1 CA186107
6 · The paper itself

Abstract

backgroundCaffeine intake has been inversely associated with Parkinson's disease (PD) risk. This relationship may be modified by polymorphisms of glutamate ionotropic receptor NMDA type subunit 2A (GRIN2A) and cytochrome P450 1A2 (CYP1A2), but the results of previous studies have been inconsistent.

methodWe examined the interaction of caffeine intake with GRIN2A-rs4998386 and CYP1A2-rs762551 polymorphisms in influencing PD risk among 829 incident cases of PD and 2,754 matched controls selected among participants in the following 3 large prospective ongoing cohorts: the Nurses' Health Study, the Health Professionals' Follow-up Study, and the Cancer Prevention Study II Nutrition Cohort. Matching factors included cohort, birth year, source of DNA, date of DNA collection, and race. Relative risks and 95% confidence intervals were estimated using conditional logistic models. Interactions were tested both on the multiplicative scale and on the additive scale.

resultsOverall, caffeine intake was associated with a lower PD risk (adjusted relative risk for highest versus lowest tertile = 0.70; 95% confidence interval, 0.57-0.86; p < .001). In analyses stratified by the GRIN2A-rs4998386 genotype, the multivariable-adjusted relative risk of PD comparing the highest to the lowest tertile of caffeine was 0.69 (95% confidence interval, 0.55-0.88; p < .01) among individuals homozygous for the C allele, and 0.85 (95% confidence interval, 0.55-1.32; p = .47; p

conclusionOur findings do not support the hypothesis of an interaction between the GRIN2A-rs4998386 or CYP1A2-rs762551 polymorphism and caffeine intake in determining PD risk. © 2018 International Parkinson and Movement Disorder Society.

Indexed as

CaffeineCase-Control StudiesCohort StudiesCytochrome P-450 CYP1A2FemaleGene FrequencyGenetic Predisposition to DiseaseGenotypeHumansMaleParkinson DiseasePhosphodiesterase InhibitorsPolymorphism, Single NucleotideReceptors, N-Methyl-D-AspartateRisk FactorsCaffeineCytochrome P-450 CYP1A2Phosphodiesterase InhibitorsReceptors, N-Methyl-D-AspartatecaffeineCYP1A2GRIN2AinteractionParkinson's disease

Identifiers

PMID29318639
PMCPMC5839986
OpenAlexW2782647863

What OpenQuestion holds

Textmetadata
LicenceTDM
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.