Evidence map›Paper›PMID 26377910›Full record

ArticleThe Journal of pharmacology and experimental therapeutics2015

Phosphorylation of the N-methyl-d-aspartate receptor is increased in the nucleus accumbens during both acute and extended morphine withdrawal.

Ethan M Anderson, Turi Reeves, Katherine Kapernaros, John K Neubert, Robert M Caudle

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of pharmacology and experimental therapeutics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
0.8field-weighted citation impact, top 31% 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

15 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Substance Addiction Rehabilitation Drugs.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
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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

5 authors at 2 institutions in 1 country.

Ethan M AndersonDepartment of Oral and Maxillofacial Surgery, University of Florida College of Dentistry, Gainesville, Florida (E.M.A., R.M.C.); Department of Neuroscience, University of Florida College of Medicine, McKnight Brain Institute, Gainesville, Florida (E.M.A., R.M.C.); University of Florida, Gainesville, Florida (T.R., K.K.); and UF College of Dentistry, Department of Orthodontics, Gainesville, Florida (J.K.N.) ethan241@gmail.com.
Turi ReevesDepartment of Oral and Maxillofacial Surgery, University of Florida College of Dentistry, Gainesville, Florida (E.M.A., R.M.C.); Department of Neuroscience, University of Florida College of Medicine, McKnight Brain Institute, Gainesville, Florida (E.M.A., R.M.C.); University of Florida, Gainesville, Florida (T.R., K.K.); and UF College of Dentistry, Department of Orthodontics, Gainesville, Florida (J.K.N.).
Katherine KapernarosDepartment of Oral and Maxillofacial Surgery, University of Florida College of Dentistry, Gainesville, Florida (E.M.A., R.M.C.); Department of Neuroscience, University of Florida College of Medicine, McKnight Brain Institute, Gainesville, Florida (E.M.A., R.M.C.); University of Florida, Gainesville, Florida (T.R., K.K.); and UF College of Dentistry, Department of Orthodontics, Gainesville, Florida (J.K.N.).
John K NeubertDepartment of Oral and Maxillofacial Surgery, University of Florida College of Dentistry, Gainesville, Florida (E.M.A., R.M.C.); Department of Neuroscience, University of Florida College of Medicine, McKnight Brain Institute, Gainesville, Florida (E.M.A., R.M.C.); University of Florida, Gainesville, Florida (T.R., K.K.); and UF College of Dentistry, Department of Orthodontics, Gainesville, Florida (J.K.N.).
Robert M CaudleDepartment of Oral and Maxillofacial Surgery, University of Florida College of Dentistry, Gainesville, Florida (E.M.A., R.M.C.); Department of Neuroscience, University of Florida College of Medicine, McKnight Brain Institute, Gainesville, Florida (E.M.A., R.M.C.); University of Florida, Gainesville, Florida (T.R., K.K.); and UF College of Dentistry, Department of Orthodontics, Gainesville, Florida (J.K.N.).
Florida College · USUniversity of Florida · US

Funding

Morphine induced alterations in NMDA receptor subunit expressionR21DA030044 · NIDA · UNIVERSITY OF FLORIDA · PI CAUDLE, ROBERT M · 2010 to 2011
$349k
NIDA NIH HHS DA030044NIDA NIH HHS R21 DA030044
6 · The paper itself

Abstract

Opioid withdrawal causes a dysphoric state that can lead to complications in pain patients and can propagate use in drug abusers and addicts. Opioid withdrawal changes the activity of neurons in the nucleus accumbens, an area rich in both opioid-binding mu opioid receptors and glutamate-binding NMDA receptors. Because the accumbens is an area important for reward and aversion, plastic changes in this area during withdrawal could alter future behaviors in animals. We discovered an increase in phosphorylation of serine 897 in the NR1 subunit of the NMDA receptor (pNR1) during acute morphine withdrawal. This serine can be phosphorylated by protein kinase A (PKA) and dephosphorylated by calcineurin. We next demonstrated that this increased pNR1 change is associated with an increase in NR1 surface expression. NR1 surface expression and pNR1 levels during acute withdrawal were both reduced by the NMDA receptor antagonist MK-801 (dizocilpine hydrogen maleate) and the PKA inhibitor H-89(N-[2-[[3-(4-bromophenyl)-2-propenyl]amino]ethyl]-5-isoquinolinesulfonamide dihydrochloride hydrate). We also found that pNR1 levels remained high after an extended morphine withdrawal period of 2 months, correlated with reward-seeking behavior for palatable food, and were associated with a decrease in accumbal calcineurin levels. These data suggest that NR1 phosphorylation changes during the acute withdrawal phase can be long lasting and may reflect a permanent change in NMDA receptors in the accumbens. These altered NMDA receptors in the accumbens could play a role in long-lasting behaviors associated with reward and opioid use.

Indexed as

Analgesics, OpioidMorphineAnimalsCalcineurinCyclic AMP-Dependent Protein KinasesDizocilpine MaleateDrug-Seeking BehaviorExcitatory Amino Acid AntagonistsFeeding BehaviorMaleNucleus AccumbensPhosphorylationProtein Kinase InhibitorsRatsRats, Sprague-DawleyReceptors, N-Methyl-D-AspartateAnalgesics, OpioidCalcineurinCyclic AMP-Dependent Protein KinasesDizocilpine MaleateExcitatory Amino Acid AntagonistsMorphineNR1 NMDA receptorProtein Kinase InhibitorsReceptors, N-Methyl-D-AspartateSerine

Identifiers

PMID26377910
PMCPMC4658487
OpenAlexW2240481579

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.