Evidence map›Paper›PMID 19068224›Full record

ArticleNeuroscience2009

Light and electron microscopic localization of alpha-1 adrenergic receptor immunoreactivity in the rat striatum and ventral midbrain.

K S Rommelfanger, D A Mitrano, Y Smith, D Weinshenker

Open access · greenAbstract read
In one paragraph

Article in Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
1.0field-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

28 citing papers in PubMed, 57 citations in OpenAlex.

  1. Trial
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  7. Commentary: AlphaFrontiers in behavioral neuroscience · 2023
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  9. Neurobiological Bases of Alcohol Consumption After Social Stress.Current topics in behavioral neurosciences · 2022
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  10. AlphaFrontiers in behavioral neuroscience · 2022
    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

4 authors at 1 institution in 1 country.

K S RommelfangerDepartment of Human Genetics, Emory University, Atlanta, GA 30322, USA.
D A Mitrano
Y Smith
D Weinshenker
Emory University · US

Funding

YNPRC NHP CLINICAL MEDICINE RESIDENCY PROGRAM - SUPPLEMENTP51RR000165 · NCRR · EMORY UNIVERSITY · PI RENGARAJAN, JYOTHI · 1985 to 2011
$114.0M
Training Program in Neurobiology of Drug AbuseT32DA015040 · NIDA · EMORY UNIVERSITY · PI KUHAR, MICHAEL J · 2003 to 2012
$3.6M
Mechanism of Disulfiram-Induced Cocaine AbstinenceR01DA017963 · NIDA · EMORY UNIVERSITY · PI WEINSHENKER, DAVID · 2006 to 2009
$1.3M
NCRR NIH HHS P51 RR000165NCRR NIH HHS RR000165NIDA NIH HHS DA017963NIDA NIH HHS R01 DA017963NIDA NIH HHS T32 DA015040NIDA NIH HHS T32 DA 15040-01A1
6 · The paper itself

Abstract

Electrophysiological and pharmacological studies have demonstrated that alpha-1 adrenergic receptor (alpha1AR) activation facilitates dopamine (DA) transmission in the striatum and ventral midbrain. However, because little is known about the localization of alpha1ARs in dopaminergic regions, the substrate(s) and mechanism(s) underlying this facilitation of DA signaling are poorly understood. To address this issue, we used light and electron microscopy immunoperoxidase labeling to examine the cellular and ultrastructural distribution of alpha1ARs in the caudate putamen, nucleus accumbens, ventral tegmental area, and substantia nigra in the rat. Analysis at the light microscopic level revealed alpha1AR immunoreactivity mainly in neuropil, with occasional staining in cell bodies. At the electron microscopic level, alpha1AR immunoreactivity was found primarily in presynaptic elements, with scarce postsynaptic labeling. Unmyelinated axons and about 30-50% terminals forming asymmetric synapses contained the majority of presynaptic labeling in the striatum and midbrain, while in the midbrain a subset of terminals forming symmetric synapses also displayed immunoreactivity. Postsynaptic labeling was scarce in both striatal and ventral midbrain regions. On the other hand, only 3-6% of spines displayed alpha1AR immunoreactivity in the caudate putamen and nucleus accumbens. These data suggest that the facilitation of dopaminergic transmission by alpha1ARs in the mesostriatal system is probably achieved primarily by pre-synaptic regulation of glutamate and GABA release.

Indexed as

AnimalsCorpus StriatumMaleMesencephalonMicroscopy, ImmunoelectronRatsRats, Sprague-DawleyReceptors, Adrenergic, alpha-1SynapsesReceptors, Adrenergic, alpha-1

Identifiers

PMID19068224
PMCPMC2692639
OpenAlexW1987349527

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.