Evidence map›Paper›PMID 21340471›Full record

ArticlePsychopharmacology2011

The effect of age on the discriminative stimulus effects of ethanol and its GABA(A) receptor mediation in cynomolgus monkeys.

Christa M Helms, Kathleen A Grant

Abstract read
In one paragraph

Article in Psychopharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.6field-weighted citation impact, top 39% 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

8 citing papers in PubMed, 10 citations in OpenAlex.

  1. Sex, species and age: Effects of rodent demographics on the pharmacology of ∆Progress in neuro-psychopharmacology & biological psychiatry · 2021
    Article
  2. GABAAlcoholism, clinical and experimental research · 2019
    Article
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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

2 authors at 2 institutions in 1 country.

Christa M HelmsDivision of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, 505 NW 185th Avenue, Beaverton, OR 97006-6448, USA. helmsc@ohsu.edu
Kathleen A Grant
Oregon Health & Science University · USOregon National Primate Research Center · US

Funding

YR 50 PROJ- ROBERTS PRIMATE ISLETP51RR000163 · NCRR · OREGON REGIONAL PRIMATE RESEARCH CENTER · PI PICKER, LOUIS J. · 1985 to 2011
$140.8M
Translational measures of risk for excessive alcohol consumptionP60AA010760 · NIAAA · OREGON HEALTH & SCIENCE UNIVERSITY · PI TAMARA J. PHILLIPS · 2006 to 2026
$34.5M
Stress and Ethanol Self-Administration in MonkeysU01AA013510 · NIAAA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI KATHLEEN A GRANT · 2002 to 2026
$11.8M
Neuroscience of AgingT32AG023477 · NIA · OREGON HEALTH & SCIENCE UNIVERSITY · PI URBANSKI, HENRYK F · 2005 to 2015
$2.4M
REPRODUCTIVE STEROIDS AND EXPERIMENTAL STROKEK01RR000163 · NCRR · OREGON HEALTH AND SCIENCE UNIVERSITY · PI MURPHY, STEPHANIE J · 2000 to 2004
$479k
Ethanol discrimination in aged female monkeysF32AA017040 · NIAAA · OREGON HEALTH & SCIENCE UNIVERSITY · PI HELMS, CHRISTA M · 2008 to 2010
$114k
NCRR NIH HHS K01 RR000163NCRR NIH HHS P51 RR000163NCRR NIH HHS RR000163NIAAA NIH HHS AA013510NIAAA NIH HHS AA017040NIAAA NIH HHS AA13541NIAAA NIH HHS F32 AA017040NIAAA NIH HHS P60 AA010760NIAAA NIH HHS U01 AA013510NIA NIH HHS AG023477NIA NIH HHS T32 AG023477
6 · The paper itself

Abstract

rationaleExcessive alcohol consumption is less common among aged compared to young adults, with aged adults showing greater sensitivity to many behavioral effects of ethanol.

objectivesThis study compared the discriminative stimulus effects of ethanol in young and middle-aged adult cynomolgus monkeys (Macaca fascicularis) and its γ-aminobutyric acid (GABA)(A) receptor mediation.

methodsTwo male and two female monkeys trained to discriminate ethanol (1.0 g/kg, i.g.; 60-min pre-treatment interval) from water at 5-6 years of age (Grant et al. in Psychopharmacology 152:181-188, 2000) were re-trained in the current study more than a decade later (19.3 ± 1.0 years of age) for a within-subjects comparison. Also, four experimentally naïve middle-aged (mean ± SEM, 17.0 ± 1.5 years of age) female monkeys were trained to discriminate ethanol for between-subjects comparison with published data from young adult naïve monkeys.

resultsTwo of the naïve middle-aged monkeys attained criterion performance, with weak stimulus control and few discrimination tests, despite greater blood-ethanol concentration 60 min after 1.0 g/kg ethanol in middle-aged compared to young adult female monkeys (Green et al. in Alcohol Clin Exp Res 23:611-616, 1999). The efficacy of the GABA(A) receptor positive modulators pentobarbital, midazolam, allopregnanolone, pregnanolone, and androsterone to substitute for the discriminative stimulus effects of 1.0 g/kg ethanol was maintained from young adulthood to middle age.

conclusionsThe data suggest that 1.0 g/kg ethanol is a weak discriminative stimulus in naive middle-aged monkeys. Nevertheless, the GABA(A) receptor mechanisms mediating the discriminative stimulus effects of ethanol, when learned as a young adult, appear stable across one third of the primate lifespan.

Indexed as

AgingAnimalsDiscrimination, PsychologicalDose-Response Relationship, DrugEthanolFemaleGABA ModulatorsMacaca fascicularisMaleReceptors, GABA-AReinforcement, PsychologyEthanolGABA ModulatorsReceptors, GABA-A

Identifiers

PMID21340471
PMCPMC3134136
OpenAlexW2074825879

What OpenQuestion holds

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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.