Evidence map›Paper›PMID 22193548›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2012

Effects of morphine on thermal sensitivity in adult and aged rats.

Drake Morgan, Jeremiah D Mitzelfelt, Lorraine M Koerper, Christy S Carter

Open access · bronzeAbstract read
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.0field-weighted citation impact, top 23% 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

11 citing papers in PubMed, 31 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Rats chasing the dragon: A new heroin inhalation method.Journal of neuroscience methods · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Methods Used to Evaluate Pain Behaviors in Rodents.Frontiers in molecular neuroscience · 2017
    Article
  10. Article
  11. Article
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.

Drake MorganDepartment of Psychiatry, University of Florida College of Medicine, Gainesville, FL 32610, USA. drakem@ufl.edu
Jeremiah D Mitzelfelt
Lorraine M Koerper
Christy S Carter
University of Florida · US

Funding

University of Florida Older Americans Independence Center (OAIC)P30AG028740 · NIA · UNIVERSITY OF FLORIDA · PI Peihua Qiu · 2007 to 2026
$22.8M
UF Clinical and Translational Science AwardUL1TR000064 · NCATS · UNIVERSITY OF FLORIDA · PI NELSON, DAVID R · 2012 to 2014
$12.2M
TRAINING IN THE NEUROBIOLOGY OF AGINGT32AG000196 · NIA · UNIVERSITY OF FLORIDA · PI SCARPACE, PHILIP J · 1989 to 2011
$2.0M
ACE Inhibition and Physical Performance in Aged RatsR01AG024526 · NIA · UNIVERSITY OF FLORIDA · PI CARTER, CHRISTY SHAWN · 2005 to 2009
$1.8M
Chronic opioids and agingR21DA023022 · NIDA · UNIVERSITY OF FLORIDA · PI MORGAN, DRAKE · 2007 to 2008
$399k
NCATS NIH HHS UL1 TR000064NIA NIH HHS P30 AG028740NIA NIH HHS R01 AG024526NIA NIH HHS T32 AG00196NIDA NIH HHS R21 DA023022
6 · The paper itself

Abstract

There are contradictory data regarding older individuals' sensitivity to pain stimulation and opioid administration. Adult (12-16 months; n = 10) and aged (27-31 months; n = 7) male F344xBN rats were tested in a thermal sensitivity procedure where the animal chooses to remain in one of two compartments with floors maintained at various temperatures ranging from hot (45°C) through neutral (30°C) to cold (15°C). Effects of morphine were determined for three temperature comparisons (ie, hot/neutral, cold/neutral, and hot/cold). Aged rats were more sensitive to cold stimulation during baseline. Morphine produced antinociception during hot thermal stimulation, but had no effect on cold stimulation. The antinociceptive (and locomotor-altering) effects of morphine were attenuated in aged rats. These data demonstrate age-related differences in baseline thermal sensitivity and responsiveness to opioids. Based on behavioral and physiological requirements of this procedure, it is suggested that thermal sensitivity may provide a relevant animal model for the assessment of pain and antinociception.

Indexed as

Hot TemperatureSensory ThresholdsAgingAnalgesics, OpioidAnimalsMaleMorphineMotor ActivityRatsRats, Inbred BNRats, Inbred F344Reaction TimeAnalgesics, OpioidMorphine

Identifiers

PMID22193548
PMCPMC3391067
OpenAlexW2140627532

What OpenQuestion holds

Textmetadata
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.