Evidence map›Paper›PMID 27459929›Full record

ArticleNeurobiology of aging2016

Age-related changes in tonic activation of presynaptic versus extrasynaptic γ-amniobutyric acid type B receptors in rat medial prefrontal cortex.

Haley E Carpenter, Kyle B Kelly, Jennifer L Bizon, Charles J Frazier

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.5field-weighted citation impact, top 20% 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

15 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. GABANeuropharmacology · 2022
    Article
  5. A Neuroscience Primer for Integrating Geroscience With the Neurobiology of Aging.The journals of gerontology. Series A, Biological sciences and medical sciences · 2022
    Article
  6. Article
  7. Article
  8. Age-Related Alterations in Prelimbic Cortical NeuronFrontiers in aging neuroscience · 2020
    Article
  9. Article
  10. Role of gamma-amino-butyric acid in the dorsal anterior cingulate in age-associated changes in cognition.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. GABAergic Networks in the Prefrontal Cortex and Working Memory.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    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.

Haley E CarpenterDepartment of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, USA.
Kyle B KellyDepartment of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA.
Jennifer L BizonDepartment of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, USA.
Charles J FrazierDepartment of Neuroscience, College of Medicine, University of Florida, Gainesville, FL, USA; Department of Pharmacodynamics, College of Pharmacy, University of Florida, Gainesville, FL, USA. Electronic address: cjfraz@ufl.edu.
University of Florida · US

Funding

Neural Mechanisms of Cognitive Decline in AgingR01AG029421 · NIA · UNIVERSITY OF FLORIDA · PI BIZON, JENNIFER LYNN · 2007 to 2018
$3.1M
NIA NIH HHS R01 AG029421
6 · The paper itself

Abstract

The present study examined the effect of age on both glutamatergic and γ-aminobutyric acid mediated (GABAergic) signaling in the rodent medial prefrontal cortex (mPFC), with an emphasis on revealing novel changes contributing to increased inhibition in age. Whole-cell patch clamp recordings were obtained from layer 2/3 mPFC pyramidal neurons in acute cortical slices prepared from either young (4 months) or aged (20-24 months) male F344 rats. Results indicated that GABAB receptors on GABAergic, but not on glutamatergic, inputs to layer 2/3 pyramidal cells are tonically activated by ambient GABA in young animals and further demonstrated that this form of tonic inhibition is significantly attenuated in aged mPFC. Moreover, concurrent with loss of tonic presynaptic GABAB autoreceptor activation, layer 2/3 pyramidal cells in aged mPFC are subjected to increased tonic activation of extrasynaptic GABAA and GABAB receptors. These data demonstrate a shift in the site of GABAB receptor-mediated inhibitory tone in the aged mPFC that clearly promotes increased inhibition of pyramidal cells in aged animals, and that may plausibly contribute to impaired executive function.

Indexed as

CognitionAgingAnimalsBeclomethasoneExecutive Functiongamma-Aminobutyric AcidMaleNeural InhibitionPatch-Clamp TechniquesPrefrontal CortexPyramidal CellsRats, Inbred F344Receptors, GABAReceptors, GABA-BReceptors, PresynapticSignal TransductionBeclomethasonegamma-Aminobutyric AcidReceptors, GABAReceptors, GABA-BReceptors, PresynapticAge-related cognitive declineGABA(A)GABA(B)L2/3 pyramidal neuronsPrefrontal cortexWorking memory

Identifiers

PMID27459929
PMCPMC5235322
OpenAlexW2395291233

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.