Evidence map›Paper›PMID 23688063›Full record

ArticleEJNMMI research2013

No difference in striatal dopamine transporter availability between active smokers, ex-smokers and non-smokers using [123I]FP-CIT (DaTSCAN) and SPECT.

Gerda Thomsen, Gitte Moos Knudsen, Peter S Jensen, Morten Ziebell, Klaus K Holst, Susanne Asenbaum, Jan Booij, Jacques Darcourt, John C Dickson, Ozlem L Kapucu and 10 more

Open access · goldAbstract read
In one paragraph

Article in EJNMMI research, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 21% 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

11 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Article
  5. Review
  6. Japanese multicenter database of healthy controls for [European journal of nuclear medicine and molecular imaging · 2018
    Article
  7. The relationship between the dopaminergic system and depressive symptoms in cervical dystonia.European journal of nuclear medicine and molecular imaging · 2017
    Article
  8. Article
  9. Article
  10. Article
  11. Dopamine function in cigarette smokers: an [¹⁸F]-DOPA PET study.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 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

20 authors at 15 institutions in 11 countries.

Gerda ThomsenNeurobiology Research Unit 9201, Rigshospitalet and Copenhagen University Hospital, Blegdamsvej 9, Copenhagen 2100, Denmark. gerda@nru.dk.
Gitte Moos Knudsen
Peter S Jensen
Morten Ziebell
Klaus K Holst
Susanne Asenbaum
Jan Booij
Jacques Darcourt
John C Dickson
Ozlem L Kapucu
Flavio Nobili
Osama Sabri
Terez Sera
Klaus Tatsch
Livia Tossici-Bolt
Koen Van Laere
Thierry Vander Borght
Andrea Varrone
Marco Pagani
Lars Hageman Pinborg
Copenhagen University Hospital · DKRigshospitalet · DKKarolinska University Hospital · SECentre Antoine Lacassagne · FRGazi University · TRKU Leuven · BELeipzig University · DEMedical University of Vienna · ATStädtisches Klinikum Karlsruhe · DEUCLouvain · BEUniversity College London · GBUniversity Hospital Southampton NHS Foundation Trust · GBUniversity of Amsterdam · NLUniversity of Genoa · ITUniversity of Szeged · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMesolimbic and nigrostriatal dopaminergic pathways play important roles in both the rewarding and conditioning effects of drugs. The dopamine transporter (DAT) is of central importance in regulating dopaminergic neurotransmission and in particular in activating the striatal D2-like receptors. Molecular imaging studies of the relationship between DAT availability/dopamine synthesis capacity and active cigarette smoking have shown conflicting results. Through the collaboration between 13 SPECT centres located in 10 different European countries, a database of FP-CIT-binding in healthy controls was established. We used the database to test the hypothesis that striatal DAT availability is changed in active smokers compared to non-smokers and ex-smokers.

methodsA total of 129 healthy volunteers were included. Subjects were divided into three categories according to past and present tobacco smoking: (1) non-smokers (n = 64), (2) ex-smokers (n = 39) and (3) active smokers (n = 26). For imaging of the DAT availability, we used [123I]FP-CIT (DaTSCAN) and single photon emission computed tomography (SPECT). Data were collected in collaboration between 13 SPECT centres located in 10 different European countries. The striatal measure of DAT availability was analyzed in a multiple regression model with age, SPECT centre and smoking as predictor.

resultsThere was no statistically significant difference in DAT availability between the groups of active smokers, ex-smokers and non-smokers (p = 0.34). Further, we could not demonstrate a significant association between striatal DAT and the number of cigarettes per day or total lifetime cigarette packages in smokers and ex-smokers.

conclusionOur results do not support the hypothesis that large differences in striatal DAT availability are present in smokers compared to ex-smokers and healthy volunteers with no history of smoking.

Identifiers

PMID23688063
PMCPMC3671201
OpenAlexW2148540264

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Registered trials

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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.