Evidence map›Paper›PMID 26700246›Full record

ArticleNeuropharmacology2016

Exposure to opiates in female adolescents alters mu opiate receptor expression and increases the rewarding effects of morphine in future offspring.

Fair M Vassoler, Siobhan J Wright, Elizabeth M Byrnes

Open access · greenAbstract read
In one paragraph

Article in Neuropharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.8field-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

29 citing papers in PubMed, 53 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

3 authors at 1 institution in 1 country.

Fair M VassolerDepartment of Biomedical Sciences, Cummings School of Veterinary Medicine, Tufts University, Peabody Pavilion, 200 Westborough Road, Grafton, MA 01536, USA. Electronic address: fair.vassoler@tufts.edu.
Siobhan J WrightDepartment of Biomedical Sciences, Cummings School of Veterinary Medicine, Tufts University, Peabody Pavilion, 200 Westborough Road, Grafton, MA 01536, USA.
Elizabeth M ByrnesDepartment of Biomedical Sciences, Cummings School of Veterinary Medicine, Tufts University, Peabody Pavilion, 200 Westborough Road, Grafton, MA 01536, USA.
Tufts University · US

Funding

Sex Differences in Adolescent Exposure to Morphine on Reward Related Behaviors in Subsequent OffspringR01DA025674 · NIDA · TUFTS UNIVERSITY BOSTON · PI BYRNES, ELIZABETH M · 2009 to 2017
$2.8M
SUMMER PROGRAMS FOR VETERINARY STUDENTS (T35)T35RR029724 · NCRR · TUFTS UNIVERSITY BOSTON · PI ANWER, MOHAMMED SAWKAT · 2010 to 2011
$207k
Embryo Transfer for the Study of Transgenerational Modifications in Morphine SensR03DA034886 · NIDA · TUFTS UNIVERSITY BOSTON · PI BYRNES, ELIZABETH M · 2013 to 2014
$165k
NCRR NIH HHS T35 RR029724NCRR NIH HHS T35RR029724NIDA NIH HHS 5R01DA025674-06NIDA NIH HHS 5R03DA034886-02NIDA NIH HHS R01 DA025674NIDA NIH HHS R03 DA034886
6 · The paper itself

Abstract

Prescription opiate use and abuse has increased dramatically over the past two decades, including increased use in adolescent populations. Recently, it has been proposed that use during this critical period may affect future offspring even when use is discontinued prior to conception. Here, we utilize a rodent model to examine the effects of adolescent morphine exposure on the reward functioning of the offspring. Female Sprague Dawley rats were administered morphine for 10 days during early adolescence (post-natal day 30-39) using an escalating dosing regimen. Animals then remained drug free until adulthood at which point they were mated with naïve males. Adult offspring (F1 animals) were tested for their response to morphine-induced (0, 1, 2.5, 5, and 10 mg/kg, s.c.) conditioned place preference (CPP) and context-independent morphine-induced sensitization. Naïve littermates were used to examine mu opiate receptor expression in the nucleus accumbens and ventral tegmental area. Results indicate that F1 females whose mothers were exposed to morphine during adolescence (Mor-F1) demonstrate significantly enhanced CPP to the lowest doses of morphine compared with Sal-F1 females. There were no differences in context-independent sensitization between maternal treatment groups. Protein expression analysis showed significantly increased levels of accumbal mu opiate receptor in Mor-F1 offspring and decreased levels in the VTA. Taken together, these findings demonstrate a shift in the dose response curve with regard to the rewarding effects of morphine in Mor-F1 females which may in part be due to altered mu opiate receptor expression in the nucleus accumbens and VTA.

Indexed as

RewardAnimalsConditioning, ClassicalDose-Response Relationship, DrugFemaleMaleMorphineNucleus AccumbensPregnancyPrenatal Exposure Delayed EffectsRatsRats, Sprague-DawleyReceptors, Opioid, muVentral Tegmental AreaMorphineReceptors, Opioid, muAdolescenceConditioned place preferenceMorphineMu opioid receptorNAcOpiatesOpioidsSensitizationTransgenerationalVTA

Identifiers

PMID26700246
PMCPMC4755844
OpenAlexW2208646176

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.