Evidence map›Paper›PMID 21576462›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

Human Mu Opioid Receptor (OPRM1 A118G) polymorphism is associated with brain mu-opioid receptor binding potential in smokers.

Riju Ray, Kosha Ruparel, Andrew Newberg, E Paul Wileyto, James W Loughead, Chaitanya Divgi, Julie A Blendy, Jean Logan, Jon-Kar Zubieta, Caryn Lerman

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 3 pooled it
6.8field-weighted citation impact, top 2% 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

74 citing papers in PubMed, 3 syntheses or guidelines pooled it, 139 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Trial
  9. Trial
  10. Article
  11. Review
  12. Article
  13. Article
  14. Unique and joint associations of polygenic risk for major depression and opioid use disorder with endogenous opioid system function.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Article
  15. Article
  16. Review
  17. Translational Research in Nicotine Addiction.Cold Spring Harbor perspectives in medicine · 2021
    Review
  18. Article
  19. Review
  20. Article

14 more citing papers are in PubMed but not listed here.

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

10 authors at 5 institutions in 1 country.

Riju RayCenter for Interdisciplinary Research on Nicotine Addiction, Department of Psychiatry, University of Pennsylvania, Philadelphia, PA 19104, USA.
Kosha Ruparel
Andrew Newberg
E Paul Wileyto
James W Loughead
Chaitanya Divgi
Julie A Blendy
Jean Logan
Jon-Kar Zubieta
Caryn Lerman
University of Pennsylvania · USBrookhaven National Laboratory · USColumbia University · USThomas Jefferson University · USUniversity of Michigan–Ann Arbor · US

Funding

University of Toronto Coordinating Genetics Core & Clinical Trial SiteU01DA020830 · NIDA · UNIVERSITY OF PENNSYLVANIA · PI CINCIRIPINI, PAUL MICHAEL · 2005 to 2014
$22.4M
Neuroimaging Abstinence and Medication ResponseP50CA143187 · NCI · UNIVERSITY OF PENNSYLVANIA · PI BLENDY, JULIE A · 2009 to 2013
$8.6M
Functional Characterization of OPRM1 A118G in Nicotine DependenceR21DA027066 · NIDA · UNIVERSITY OF PENNSYLVANIA · PI BLENDY, JULIE A, LERMAN, CARYN · 2009 to 2010
$1.0M
NCI NIH HHS P50 CA143187NCI NIH HHS P50-CA143187NIDA NIH HHS R21 DA027066NIDA NIH HHS R21-DA027066NIDA NIH HHS U01 DA020830NIDA NIH HHS U01-DA020830
6 · The paper itself

Abstract

Evidence points to the endogenous opioid system, and the mu-opioid receptor (MOR) in particular, in mediating the rewarding effects of drugs of abuse, including nicotine. A single nucleotide polymorphism (SNP) in the human MOR gene (OPRM1 A118G) has been shown to alter receptor protein level in preclinical models and smoking behavior in humans. To clarify the underlying mechanisms for these associations, we conducted an in vivo investigation of the effects of OPRM1 A118G genotype on MOR binding potential (BP(ND) or receptor availability). Twenty-two smokers prescreened for genotype (12 A/A, 10 */G) completed two [(11)C]carfentanil positron emission tomography (PET) imaging sessions following overnight abstinence and exposure to a nicotine-containing cigarette and a denicotinized cigarette. Independent of session, smokers homozygous for the wild-type OPRM1 A allele exhibited significantly higher levels of MOR BP(ND) than smokers carrying the G allele in bilateral amygdala, left thalamus, and left anterior cingulate cortex. Among G allele carriers, the extent of subjective reward difference (denicotinized versus nicotine cigarette) was associated significantly with MOR BP(ND) difference in right amygdala, caudate, anterior cingulate cortex, and thalamus. Future translational investigations can elucidate the role of MORs in nicotine addiction, which may lead to development of novel therapeutics.

Indexed as

Polymorphism, GeneticAdultBrainBrain MappingFemaleGenotypeHumansMaleMiddle AgedNicotianaNicotinePositron-Emission TomographyReceptors, Opioid, muSmokingNicotineOPRM1 protein, humanReceptors, Opioid, mu

Identifiers

PMID21576462
PMCPMC3107291
OpenAlexW2121923873

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.