Evidence map›Paper›PMID 27297873›Full record

ArticlePhysiology & behavior2016

Effects of intrinsic aerobic capacity and ovariectomy on voluntary wheel running and nucleus accumbens dopamine receptor gene expression.

Young-Min Park, Jill A Kanaley, Jaume Padilla, Terese Zidon, Rebecca J Welly, Matthew J Will, Steven L Britton, Lauren G Koch, Gregory N Ruegsegger, Frank W Booth and 2 more

Open access · greenAbstract read
In one paragraph

Article in Physiology & behavior, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.1field-weighted citation impact, top 9% 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

25 citing papers in PubMed, 39 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

12 authors at 4 institutions in 1 country.

Young-Min ParkNutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA.
Jill A KanaleyNutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA.
Jaume PadillaNutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA; Child Health, University of Missouri, Columbia, MO, USA; Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO, USA.
Terese ZidonNutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA.
Rebecca J WellyNutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA.
Matthew J WillPsychological Sciences, University of Missouri, Columbia, MO, USA.
Steven L BrittonDepartment of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI, USA.
Lauren G KochDepartment of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI, USA.
Gregory N RuegseggerBiomedical Sciences, University of Missouri, Columbia, MO, USA.
Frank W BoothBiomedical Sciences, University of Missouri, Columbia, MO, USA.
John P ThyfaultDepartment of Molecular Integrative Physiology, University of Kansas Medical Center, Kansas City, KS, USA.
Victoria J Vieira-PotterNutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA. Electronic address: vieirapotterv@missouri.edu.
University of Missouri · USUniversity of Michigan · USUniversity of Kansas Medical Center · USUniversity of Missouri Health System · US

Funding

Regional Pilot And Feasibility Study Grants ProgramP30DK020572 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Mehboob A Hussain · 2013 to 2026
$24.3M
Resource for Rat Genetic Models of Aerobic CapacityP40OD021331 · OD · UNIVERSITY OF TOLEDO HEALTH SCI CAMPUS · PI KOCH, LAUREN GERARD · 2015 to 2019
$1.9M
Aerobic fitness, mitochondrial dysfunction, and fatty liver diseaseR01DK088940 · NIDDK · UNIVERSITY OF MISSOURI-COLUMBIA · PI THYFAULT, JOHN P · 2011 to 2015
$1.5M
Vascular Insulin Resistance in Obesity: Role of Endoplasmic Reticulum StressK01HL125503 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI PADILLA, JAUME · 2015 to 2018
$564k
Sexual dimorphism, hepatic mitochondrial adaptations, and hepatic steatosisI01BX002567 · VA · KANSAS CITY VA MEDICAL CENTER · PI THYFAULT, JOHN P · 2015 to 2025
–
Evaluation of robot assisted neuro-rehabilitationI01RX000123 · VA · BALTIMORE VA MEDICAL CENTER · PI BEVER, CHRISTOPHER T · 2009 to 2014
–
BLRD VA I01 BX002567NHLBI NIH HHS K01 HL125503NIDDK NIH HHS P30 DK020572NIDDK NIH HHS R01 DK088940NIH HHS P40 OD021331RRD VA I01 RX000123
6 · The paper itself

Abstract

unlabelledRats selectively bred for high (HCR) and low (LCR) aerobic capacity show a stark divergence in wheel running behavior, which may be associated with the dopamine (DA) system in the brain. HCR possess greater motivation for voluntary running along with greater brain DA activity compared to LCR. We recently demonstrated that HCR are not immune to ovariectomy (OVX)-associated reductions in spontaneous cage (i.e. locomotor) activity. Whether HCR and LCR rats differ in their OVX-mediated voluntary wheel running response is unknown. PURPOSE: To determine whether HCR are protected from OVX-associated reduction in voluntary wheel running.

methodsForty female HCR and LCR rats (age ~27weeks) had either SHM or OVX operations, and given access to a running wheel for 11weeks. Weekly wheel running distance was monitored throughout the intervention. Nucleus accumbens (NAc) was assessed for mRNA expression of DA receptors at sacrifice.

resultsCompared to LCR, HCR ran greater distance and had greater ratio of excitatory/inhibitory DA mRNA expression (both line main effects, P<0.05). Wheel running distance was significantly, positively correlated with the ratio of excitatory/inhibitory DA mRNA expression across animals. In both lines, OVX reduced wheel running (P<0.05). Unexpectedly, although HCR started with significantly greater voluntary wheel running, they had greater OVX-induced reduction in wheel running than LCR such that no differences were found 11weeks after OVX between HCROVX and LCROVX (interaction, P<0.05). This significant reduction in wheel running in HCR was associated with an OVX-mediated reduction in the ratio of excitatory/inhibitory DA mRNA expression.

conclusionThe DA system in the NAc region may play a significant role in motivation to run in female rats. Compared to LCR, HCR rats run significantly more, which associates with greater ratio of excitatory/inhibitory DA mRNA expression. However, despite greater inherent motivation to run and an associated brain DA mRNA expression profile, HCR rats are not protected against OVX-induced reduction in wheel running or OVX-mediated reduction in the ratio of excitatory/inhibitory DA receptor mRNA expression. OVX-mediated reduction in motivated physical activity may be partially explained by a reduced ratio of excitatory/inhibitory DA receptor mRNA expression for which intrinsic fitness does not confer protection.

Indexed as

AnimalsDopamine Plasma Membrane Transport ProteinsFemaleGene ExpressionModels, AnimalMotivationMotor ActivityNucleus AccumbensOvariectomyPhysical FitnessRandom AllocationRatsReceptors, DopamineRNA, MessengerRunningSpecies SpecificityDopamine Plasma Membrane Transport ProteinsReceptors, DopamineRNA, MessengerAerobic capacityDopamine receptorsExercise motivationNucleus accumbensOvariectomy

Identifiers

PMID27297873
PMCPMC4983202
OpenAlexW2416601747

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.