Evidence map›Paper›PMID 24529965›Full record

ArticleDrug and alcohol dependence2014

Regionally-specific alterations in myelin proteins in nonhuman primate white matter following prolonged cocaine self-administration.

Hilary R Smith, Thomas J R Beveridge, Michael A Nader, Linda J Porrino

Abstract read
In one paragraph

Article in Drug and alcohol dependence, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

7 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
  2. The neurobiology of drug addiction: cross-species insights into the dysfunction and recovery of the prefrontal cortex.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Non-human primate models in drug addiction deserve more attention.Dong wu xue yan jiu = Zoological research · 2014
    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

4 authors at 1 institution in 1 country.

Hilary R SmithDepartment of Physiology and Pharmacology, Center for the Neurobiology of Addiction Treatment (CNAT), Wake Forest School of Medicine, Winston Salem, NC 27157, USA.
Thomas J R BeveridgeDepartment of Physiology and Pharmacology, Center for the Neurobiology of Addiction Treatment (CNAT), Wake Forest School of Medicine, Winston Salem, NC 27157, USA.
Michael A NaderDepartment of Physiology and Pharmacology, Center for the Neurobiology of Addiction Treatment (CNAT), Wake Forest School of Medicine, Winston Salem, NC 27157, USA.
Linda J PorrinoDepartment of Physiology and Pharmacology, Center for the Neurobiology of Addiction Treatment (CNAT), Wake Forest School of Medicine, Winston Salem, NC 27157, USA. Electronic address: lporrino@wakehealth.edu.
Wake Forest University · US

Funding

TROPANE EVALUATION AND GENERAL SCIENTIFIC SERVICES COREP50DA006634 · NIDA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI PORRINO, LINDA J. · 1991 to 2019
$30.8M
NEUROBIOLOGICAL CORRELATES OF COCAINE ABUSER01DA009085 · NIDA · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI PORRINO, LINDA J. · 1995 to 2011
$3.9M
NIDA NIH HHS DA06634NIDA NIH HHS DA09085NIDA NIH HHS P50 DA006634NIDA NIH HHS R01 DA009085
6 · The paper itself

Abstract

backgroundNeuroimaging studies of cocaine users have demonstrated white matter abnormalities associated with behavioral measures of impulsivity and decision-making deficits. The underlying bases for this dysregulation in white matter structure and function have yet to be determined. The aim of the present studies was to investigate the influence of prolonged cocaine self-administration on the levels of myelin-associated proteins and mRNAs in nonhuman primate white matter.

methodsRhesus monkeys (N=4) self-administered cocaine (0.3mg/kg/inj, 30 reinforcers per session) for 300 sessions. Control animals (N=4) responded for food. Following the final session monkeys were euthanized and white matter tissue at three brain levels was processed for immunoblotting analysis of proteolipid protein (PLP) and myelin basic protein (MBP), as well as for in situ hybridization histochemical analysis of PLP and MBP mRNAs.

resultsBoth MBP and PLP immunoreactivities in white matter at the level of the precommissural striatum were significantly lower in tissue from monkeys self-administering cocaine as compared to controls. No significant differences were seen for either protein at the levels of the prefrontal cortex or postcommissural striatum. In addition, no differences were observed in expression of mRNA for either protein.

conclusionsThese preliminary findings, in a nonhuman model of prolonged cocaine self-administration, provide further evidence that compromised myelin may underlie the deficits in white matter integrity described in studies of human cocaine users.

Indexed as

Myelin ProteinsAnimalsBrainCocaineMacaca mulattaMaleNerve Fibers, MyelinatedRandom AllocationSelf AdministrationTime FactorsCocaineMyelin ProteinsCocaineMonkeyMyelin basic proteinProteolipid proteinSelf-administrationWhite matter

Identifiers

PMID24529965
PMCPMC4000724
OpenAlexW1972564742

What OpenQuestion holds

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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.