Evidence map›Paper›PMID 22169936›Full record

ArticleSynapse (New York, N.Y.)2012

Positron emission tomography experience with 2-[¹⁸F]fluoro-3-(2(S)-azetidinylmethoxy)pyridine (2-[¹⁸F]FA) in the living human brain of smokers with paranoid schizophrenia.

James Robert Brašić, Nicola Cascella, Anil Kumar, Yun Zhou, John Hilton, Vanessa Raymont, Andrew Crabb, Maria Rita Guevara, Andrew G Horti, Dean Foster Wong

Abstract read
In one paragraph

Article in Synapse (New York, N.Y.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  5. Radiation dosimetry of the αEJNMMI physics · 2016
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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

10 authors at 2 institutions in 1 country.

James Robert BrašićDivision of Nuclear Medicine, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Johns Hopkins Outpatient Center, Baltimore, Maryland 21287-0807, USA. brasic@jhmi.edu
Nicola Cascella
Anil Kumar
Yun Zhou
John Hilton
Vanessa Raymont
Andrew Crabb
Maria Rita Guevara
Andrew G Horti
Dean Foster Wong
Johns Hopkins University · USJohns Hopkins Medicine · US

Funding

ZINC AND CA EDTA THERAPY OF PLUMBISMM01RR000052 · NCRR · JOHNS HOPKINS UNIVERSITY · PI BELCHER, HAROLYN MILLICENT EDITH · 1985 to 2007
$37.3M
IMAGING RESEARCH IN NEUROPSYCHIATRY AND DRUG ABUSEK24DA000412 · NIDA · JOHNS HOPKINS UNIVERSITY · PI WONG, DEAN FOSTER · 2000 to 2009
$1.5M
Detection Of Drugs Of Abuse In Biological Fluids/TissuesZ01DA000412 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI HUESTIS, MARILYN · 1998 to 2008
$956k
DEDICATED HIGH PERFORM HUMAB BRAIN/PRECLIN PET: SUBSTANCE ABUSE: ALCOHOL, COCAINS10RR017219 · NCRR · JOHNS HOPKINS UNIVERSITY · PI WONG, DEAN FOSTER · 2004 to 2004
$500k
High End Computing for PET/SPECTS10RR023623 · NCRR · JOHNS HOPKINS UNIVERSITY · PI WONG, DEAN FOSTER · 2007 to 2007
$205k
DOPAMINE TRANSPORTER IMAGING IN COCAINE ABUSER01DA009482 · NIDA · JOHNS HOPKINS UNIVERSITY · PI WONG, DEAN FOSTER · 1994 to 1999
–
Intramural NIH HHS Z01 DA000412NCRR NIH HHS M01 RR000052NCRR NIH HHS M01RR00052NCRR NIH HHS S10 RR017219NCRR NIH HHS S10 RR023623NIDA NIH HHS DA09482NIDA NIH HHS K24 DA000412
6 · The paper itself

Abstract

Utilizing postmortem data (Breese et al. [2000] Neuropsychopharmacology 23:351-364), we hypothesized that the densities of high-affinity neuronal α4β2 nicotinic acetylcholine receptors (nAChRs) in the brain exist in a continuum from highest to lowest as follows: smokers without schizophrenia > smokers with schizophrenia > nonsmokers without schizophrenia > nonsmokers with schizophrenia. Application of the Kruskal-Wallis Test (Statacorp, 2003) to the postmortem data (Breese et al. [2000] Neuropsychopharmacology 23:351-364) confirmed the hypothesized order in the cortex and the hippocampus and attained significance in the caudate and the thalamus. Positron emission tomography (PET) was performed for 60 min at 6 h after the intravenous administration of 444 megabequerels [MBq] (12 mCi) 2-[¹⁸F]fluoro-3-(2(S)-azetidinylmethoxy)pyridine (2-[¹⁸F]FA), a radiotracer for high-affinity neuronal α4β2 nAChRs, as a bolus plus continuous infusion to 10 adults (seven men and three women) (six smokers including five with paranoid schizophrenia and four nonsmokers) ranging in age from 22 to 56 years (mean 40.1, standard deviation 13.6). The thalamic nondisplaceable binding potential (BP(ND) ) was 1.32 ± 0.19 (mean ± standard deviation) for healthy control nonsmokers; 0.50 ± 0.19 for smokers with paranoid schizophrenia; and 0.51 for the single smoker without paranoid schizophrenia. The thalamic BP(ND) s of nonsmokers were significantly higher than those of smokers who smoked cigarettes a few hours before the scans (P = 0.0105) (StataCorp, 2003), which was likely due to occupancy of nAChRs by inhaled nicotine in smokers. Further research is needed to rule out the effects of confounding variables.

Indexed as

AdultAzetidinesBrainFemaleFluorine RadioisotopesHumansMaleMiddle AgedNeuropsychological TestsPositron-Emission TomographyRadiopharmaceuticalsReceptors, NicotinicSchizophrenia, ParanoidSmokingYoung AdultAzetidinesFluorine Radioisotopesnicotinic receptor alpha4beta2RadiopharmaceuticalsReceptors, Nicotinic

Identifiers

PMID22169936
PMCPMC3445266
OpenAlexW2063095393

What OpenQuestion holds

Textmetadata
LicenceTDM
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.