Evidence map›Paper›PMID 26272110›Full record

ArticleNeuropharmacology2015

Regulation of α4β2α5 nicotinic acetylcholinergic receptors in rat cerebral cortex in early and late adolescence: Sex differences in response to chronic nicotine.

Bethany G Hoegberg, Ermelinda Lomazzo, Norman H Lee, David C Perry

Open access · greenAbstract readComparative Study
In one paragraph

Article in Neuropharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
0.5field-weighted citation impact, top 35% 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

10 citing papers in PubMed, 21 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. An Inventory of Methods for the Assessment of Additive Increased Addictiveness of Tobacco Products.Nicotine & tobacco research : official journal of the Society for Research on Nicotine and Tobacco · 2016
    Review
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 2 institutions in 2 countries.

Bethany G HoegbergDepartment of Pharmacology and Physiology, The George Washington University, 2300 Eye Street NW, Washington, DC, 20037, USA. Electronic address: hoegberg@gwmail.gwu.edu.
Ermelinda LomazzoInstitute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, 55099, Mainz, Germany. Electronic address: lomazzo@uni-mainz.de.
Norman H LeeDepartment of Pharmacology and Physiology, The George Washington University, 2300 Eye Street NW, Washington, DC, 20037, USA. Electronic address: nhlee@gwu.edu.
David C PerryDepartment of Pharmacology and Physiology, The George Washington University, 2300 Eye Street NW, Washington, DC, 20037, USA. Electronic address: dcperry48@gmail.com.
George Washington University · USUniversity Medical Center of the Johannes Gutenberg University Mainz · DE

Funding

Chronic Nicotine Effects on Receptor SubtypesR01DA015767 · NIDA · GEORGE WASHINGTON UNIVERSITY · PI LEE, NORMAN H · 2004 to 2013
$3.0M
NIDA NIH HHS DA015767NIDA NIH HHS R01 DA015767
6 · The paper itself

Abstract

Chronic nicotine administration in animals, and smoking in humans, causes up-regulation of α4β2* neuronal nicotinic receptors (nAChRs), which has been hypothesized to contribute to the addictive actions of nicotine. We used a rat model to test whether such up-regulatory effects differ in adolescents versus adults, and in males versus females. Following chronic treatment with nicotine or saline via subcutaneous osmotic minipumps, we measured α4β2 and α4β2α5 nAChRs in cerebral cortex using [3H]epibatidine to label assembled nAChRs, and selective antibodies to measure the individual subunits via immunoprecipitation. For the first time, we provide a detailed characterization of the response of both α4β2 and α4β2α5 nAChRs in female adolescent rat cerebral cortex. We found differences in nicotine-induced up-regulation between males and females in early adolescence that are absent in both late adolescence and adulthood. Males showed significant up-regulation at PN28 which was absent in age-matched females. These results demonstrate sex differences in the susceptibility of α4β2* nAChRs to the effects of chronic nicotine exposure in the cerebral cortex based on age.

Indexed as

Sex CharacteristicsAnimalsBinding SitesBridged Bicyclo Compounds, HeterocyclicCerebral CortexFemaleImmunoprecipitationMaleNicotineNicotinic AgonistsPyridinesRats, Sprague-DawleyReceptors, NicotinicTritiumUp-RegulationBridged Bicyclo Compounds, HeterocyclicChrna5 protein, ratepibatidineNicotineNicotinic Agonistsnicotinic receptor alpha4beta2PyridinesReceptors, NicotinicTritiumAdolescenceChronic nicotineImmunoprecipitationNicotinic receptor subtypesα5 subunit

Identifiers

PMID26272110
PMCPMC4666496
OpenAlexW1637445305

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.