Evidence map›Paper›PMID 24884839›Full record

ArticleBMC genomics2014

The Netrin-1 receptor DCC is a regulator of maladaptive responses to chronic morphine administration.

De-Yong Liang, Ming Zheng, Yuan Sun, Peyman Sahbaie, Sarah A Low, Gary Peltz, Grégory Scherrer, Cecilia Flores, J David Clark

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 36% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Pooled it
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  3. Review
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  7. Review
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  9. Review
  10. Genome-Wide Association Study of Opioid Cessation.Journal of clinical medicine · 2020
    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

9 authors at 2 institutions in 2 countries.

De-Yong Liang
Ming Zheng
Yuan Sun
Peyman Sahbaie
Sarah A Low
Gary Peltz
Grégory Scherrer
Cecilia Flores
J David ClarkAnesthesiology Service, Veterans Affairs Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, USA. djclark@stanford.edu.
Stanford University · USMcGill University · CA

Funding

The In Silico Genetic Analysis of Opioid AdaptationsR21DA036333 · NIDA · PALO ALTO VETERANS INSTIT FOR RESEARCH · PI CLARK, DAVID J. · 2013 to 2014
$378k
NIDA NIH HHS R21 DA036333NIDA NIH HHS R21DA036333
6 · The paper itself

Abstract

backgroundOpioids are the cornerstone of treatment for moderate to severe pain, but chronic use leads to maladaptations that include: tolerance, dependence and opioid-induced hyperalgesia (OIH). These responses limit the utility of opioids, as well as our ability to control chronic pain. Despite decades of research, we have no therapies or proven strategies to overcome this problem. However, murine haplotype based computational genetic mapping and a SNP data base generated from analysis of whole-genome sequence data (whole-genome HBCGM), provides a hypothesis-free method for discovering novel genes affecting opioid maladaptive responses.

resultsWhole genome-HBCGM was used to analyze phenotypic data on morphine-induced tolerance, dependence and hyperalgesia obtained from 23 inbred strains. The robustness of the genetic mapping results was analyzed using strain subsets. In addition, the results of analyzing all of the opioid-related traits together were examined. To characterize the functional role of the leading candidate gene, we analyzed transgenic animals, mRNA and protein expression in behaviorally divergent mouse strains, and immunohistochemistry in spinal cord tissue. Our mapping procedure identified the allelic pattern within the netrin-1 receptor gene (Dcc) as most robustly associated with OIH, and it was also strongly associated with the combination of the other maladaptive opioid traits analyzed. Adult mice heterozygous for the Dcc gene had significantly less tendency to develop OIH, become tolerant or show evidence of dependence after chronic exposure to morphine. The difference in opiate responses was shown not to be due to basal or morphine-stimulated differences in the level of Dcc expression in spinal cord tissue, and was not associated with nociceptive neurochemical or anatomical alterations in the spinal cord or dorsal root ganglia in adult animals.

conclusionsWhole-genome HBCGM is a powerful tool for identifying genes affecting biomedical traits such as opioid maladaptations. We demonstrate that Dcc affects tolerance, dependence and OIH after chronic opioid exposure, though not through simple differences in expression in the adult spinal cord.

Indexed as

AnimalsBehavior, AnimalChromosome MappingDatabases, FactualDrug ToleranceGenomeHaplotypesHeterozygoteHyperalgesiaInjections, SubcutaneousMiceMice, Inbred C57BLMorphineNetrin ReceptorsProteinsReceptors, Cell SurfaceMorphineNetrin ReceptorsProteinsReceptors, Cell SurfaceRNA

Identifiers

PMID24884839
PMCPMC4038717
OpenAlexW2100328238

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.