Evidence map›Paper›PMID 32726684›Full record

ArticleBrain, behavior, and immunity2020

Role of toll-like receptor 7 (TLR7) in voluntary alcohol consumption.

E K Grantham, A S Warden, G S McCarthy, A DaCosta, S Mason, Y Blednov, R D Mayfield, R A Harris

Open access · greenAbstract read
In one paragraph

Article in Brain, behavior, and immunity, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.8field-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

25 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Heat-KilledNutrients · 2023
    Article
  18. Neuroimmune pathways as targets to reduce alcohol consumption.Pharmacology, biochemistry, and behavior · 2023
    Article
  19. Article
  20. 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

8 authors at 1 institution in 1 country.

E K GranthamWaggoner Center for Alcohol and Addiction Research, University of Texas at Austin, 2500 Speedway, Stop 14800, Austin, TX 78712, USA; Institute for Neuroscience, University of Texas at Austin, Austin, TX 78712, USA. Electronic address: ekgrantham@utexas.edu.
A S WardenWaggoner Center for Alcohol and Addiction Research, University of Texas at Austin, 2500 Speedway, Stop 14800, Austin, TX 78712, USA; Institute for Neuroscience, University of Texas at Austin, Austin, TX 78712, USA; Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA 92093, USA.
G S McCarthyWaggoner Center for Alcohol and Addiction Research, University of Texas at Austin, 2500 Speedway, Stop 14800, Austin, TX 78712, USA; Institute for Cell and Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA.
A DaCostaWaggoner Center for Alcohol and Addiction Research, University of Texas at Austin, 2500 Speedway, Stop 14800, Austin, TX 78712, USA.
S MasonWaggoner Center for Alcohol and Addiction Research, University of Texas at Austin, 2500 Speedway, Stop 14800, Austin, TX 78712, USA.
Y BlednovWaggoner Center for Alcohol and Addiction Research, University of Texas at Austin, 2500 Speedway, Stop 14800, Austin, TX 78712, USA.
R D MayfieldWaggoner Center for Alcohol and Addiction Research, University of Texas at Austin, 2500 Speedway, Stop 14800, Austin, TX 78712, USA; Institute for Neuroscience, University of Texas at Austin, Austin, TX 78712, USA.
R A HarrisWaggoner Center for Alcohol and Addiction Research, University of Texas at Austin, 2500 Speedway, Stop 14800, Austin, TX 78712, USA; Institute for Neuroscience, University of Texas at Austin, Austin, TX 78712, USA.
The University of Texas at Austin · US

Funding

GENE EXPRESSION IN THE HUMAN ALCOHOLIC BRAINR01AA012404 · NIAAA · UNIVERSITY OF TEXAS AUSTIN · PI MAYFIELD, ROY DAYNE · 2000 to 2025
$10.7M
INIA: ANIMAL COREU01AA013520 · NIAAA · UNIVERSITY OF TEXAS AUSTIN · PI YURI A BLEDNOV, ROBERT O. MESSING · 2001 to 2026
$9.5M
Next Generation Sequencing of Human Alcoholic BrainU01AA020926 · NIAAA · UNIVERSITY OF TEXAS AT AUSTIN · PI Roy DAYNE MAYFIELD · 2011 to 2026
$6.7M
Integrative Neuroscience Initiative on AlcoholismU24AA025479 · NIAAA · UNIVERSITY OF TEXAS AT AUSTIN · PI ROBERT O. MESSING · 2017 to 2026
$5.0M
NIAAA NIH HHS R01 AA012404NIAAA NIH HHS U01 AA013520NIAAA NIH HHS U01 AA020926NIAAA NIH HHS U24 AA025479
6 · The paper itself

Abstract

Overactivation of neuroimmune signaling has been linked to excessive ethanol consumption. Toll-like receptors (TLRs) are a major component of innate immune signaling and initiate anti- and pro-inflammatory responses via intracellular signal transduction cascades. TLR7 is upregulated in post-mortem brain tissue from humans with alcohol use disorder (AUD) and animals with prior exposure to ethanol. Despite this evidence, the role of TLR7 in the regulation of voluntary ethanol consumption has not been studied. We test the hypothesis that TLR7 activation regulates voluntary ethanol drinking behavior by administering a TLR7 agonist (R848) during an intermittent access drinking procedure in mice. Acute activation of TLR7 reduced ethanol intake, preference, and total fluid intake due, at least in part, to an acute sickness response. However, chronic pre-treatment with R848 resulted in tolerance to the adverse effects of the drug and a subsequent increase in ethanol consumption. To determine the molecular machinery that mediates these behavioral changes, we evaluated gene expression after acute and chronic TLR7 activation. We found that acute TLR7 activation produces brain region specific changes in expression of immune pathway genes, whereas chronic TLR7 activation causes downregulation of TLRs and blunted cytokine induction, suggesting molecular tolerance. Our results demonstrate a novel role for TLR7 signaling in regulating voluntary ethanol consumption. Taken together, our findings suggest TLR7 may be a viable target for development of therapies to treat AUD.

Indexed as

AlcoholismToll-Like Receptor 7Alcohol DrinkingAnimalsEthanolMiceMice, Inbred C57BLToll-Like ReceptorsEthanolToll-Like Receptor 7Toll-Like Receptors

Identifiers

PMID32726684
PMCPMC7572874
OpenAlexW3044886691

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.