Evidence map›Paper›PMID 27004789›Full record

ArticlePsychopharmacology2016

Effects of oxytocin on background anxiety in rats with high or low baseline startle.

Luke Ayers, Andrew Agostini, Jay Schulkin, Jeffrey B Rosen

Abstract read
In one paragraph

Article in Psychopharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 8% 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, 1 synthesis or guideline pooled it, 19 citations in OpenAlex.

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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 3 institutions in 1 country.

Luke AyersDepartment of Psychology, Widener University, Chester, PA, USA.
Andrew AgostiniDepartment of Psychological and Brain Sciences, University of Delaware, Newark, DE, USA.
Jay SchulkinDepartment of Neuroscience, Georgetown University, Washington, DC, USA.
Jeffrey B RosenDepartment of Psychological and Brain Sciences, University of Delaware, Newark, DE, USA. jrosen@udel.edu.
University of Delaware · USGeorgetown University · USWidener University · US

Funding

Updated confocal microscope in the Imaging Core facility to support biomedical researchP20GM103653 · NIGMS · DELAWARE STATE UNIVERSITY · PI HARRINGTON, MELISSA A · 2012 to 2022
$22.7M
Mechanisms of Context Conditioning in the Developing RatR01HD075066 · NICHD · UNIVERSITY OF DELAWARE · PI ROSEN, JEFFREY B, STANTON, MARK E. · 2014 to 2016
$863k
Oxytocin's novel antianxiety effectR01MH094812 · NIMH · UNIVERSITY OF DELAWARE · PI ROSEN, JEFFREY B · 2012 to 2012
$369k
NICHD NIH HHS R01 HD075066NIGMS NIH HHS P20 GM103653NIMH NIH HHS R01 MH094812
6 · The paper itself

Abstract

rationaleOxytocin has antianxiety properties in humans and rodents. However, the antianxiety effects have been variable.

objectivesTo reduce variability and to strengthen the antianxiety effect of oxytocin in fear-potentiated startle, two experiments were performed. First, different amounts of light-shock pairings were given to determine the optimal levels of cue-specific fear conditioning and non-predictable startle (background anxiety). Second, the antianxiety effects of oxytocin were examined in rats with high and low pre-fear conditioning baseline startle to determine if oxytocin differentially affects high and low trait anxiety rats.

methodsBaseline pre-fear conditioning startle responses were first measured. Rats then received 1, 5, or 10 light-shock pairings. Fear-potentiated startle was then tested with two trial types: light-cued startle and non-cued startle trials. In the second experiment, rats fear conditioned with 10 light-shock pairings were administered either saline or oxytocin before a fear-potentiated startle test. Rats were categorized as low or high startlers by their pre-fear conditioning startle amplitude.

resultsTen shock pairings produced the largest non-cued startle responses (background anxiety), without increasing cue-specific fear-potentiated startle compared to one and five light-shock pairings. Cue-specific fear-potentiated startle was unaffected by oxytocin. Oxytocin reduced background anxiety only in rats with low pre-fear startle responses.

conclusionsOxytocin has population selective antianxiety effects on non-cued unpredictable threat, but only in rats with low pre-fear baseline startle responses. The low startle responses are reminiscent of humans with low startle responses and high trait anxiety.

Indexed as

AnimalsAnti-Anxiety AgentsAnxietyConditioning, PsychologicalCuesElectroshockFearMaleOxytocinPhotic StimulationRatsRats, Sprague-DawleyReflex, StartleAnti-Anxiety AgentsOxytocinAnxietyFearOxytocinStartle

Identifiers

PMID27004789
PMCPMC4864502
OpenAlexW2306801969

What OpenQuestion holds

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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.