Evidence map›Paper›PMID 23272676›Full record

ArticleBMC neuroscience2012

Functional α7β2 nicotinic acetylcholine receptors expressed in hippocampal interneurons exhibit high sensitivity to pathological level of amyloid β peptides.

Qiang Liu, Yao Huang, Jianxin Shen, Scott Steffensen, Jie Wu

Open access · goldAbstract read
In one paragraph

Article in BMC neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 citations in OpenAlex.

  1. The cellular model for Alzheimer's disease research: PC12 cells.Frontiers in molecular neuroscience · 2022
    Pooled it
  2. Review
  3. Review
  4. Analogs of α-conotoxin PnIC selectively inhibit α7β2- over α7-only subtype nicotinic acetylcholine receptors via a novel allosteric mechanism.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
    Article
  5. Article
  6. Review
  7. Memantine has a nicotinic neuroprotective pathway in acute hippocampal slices after an NMDA insult.Toxicology in vitro : an international journal published in association with BIBRA · 2022
    Article
  8. Article
  9. Article
  10. Review
  11. Implications of Oligomeric Amyloid-Beta (oAβThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
    Article
  12. Nicotinic Acetylcholine Receptors of PC12 Cells.Cellular and molecular neurobiology · 2021
    Review
  13. Nicotinic Receptor Subunit Distribution in Auditory Cortex: Impact of Aging on Receptor Number and Function.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Article
  14. Article
  15. Article
  16. Article
  17. Influence of hippocampal GABAMetabolic brain disease · 2018
    Article
  18. Molecular function of the novel α7β2 nicotinic receptor.Cellular and molecular life sciences : CMLS · 2018
    Article
  19. Review
  20. 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

5 authors at 5 institutions in 2 countries.

Qiang LiuDivisions of Neurology, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, AZ 85013-4496, USA.
Yao Huang
Jianxin Shen
Scott Steffensen
Jie Wu
Barrow Neurological Institute · USBrigham Young University · USShantou University · CNShantou University Medical College · CNSt. Joseph's Hospital and Medical Center · US

Funding

Nicotine and Alcohol Co-DependenceR01DA035958 · NIDA · BRIGHAM YOUNG UNIVERSITY · PI STEFFENSEN, SCOTT C · 2014 to 2018
$2.0M
NIDA NIH HHS R01 DA035958
6 · The paper itself

Abstract

backgroundβ-amyloid (Aβ) accumulation is described as a hallmark of Alzheimer's disease (AD). Aβ perturbs a number of synaptic components including nicotinic acetylcholine receptors containing α7 subunits (α7-nAChRs), which are abundantly expressed in the hippocampus and found on GABAergic interneurons. We have previously demonstrated the existence of a novel, heteromeric α7β2-nAChR in basal forebrain cholinergic neurons that exhibits high sensitivity to acute Aβ exposure. To extend our previous work, we evaluated the expression and pharmacology of α7β2-nAChRs in hippocampal interneurons and their sensitivity to Aβ.

resultsGABAergic interneurons in the CA1 subregion of the hippocampus expressed functional α7β2-nAChRs, which were characterized by relatively slow whole-cell current kinetics, pharmacological sensitivity to dihydro-β-erythroidine (DHβE), a nAChR β2* subunit selective blocker, and α7 and β2 subunit interaction using immunoprecipitation assay. In addition, α7β2-nAChRs were sensitive to 1 nM oligomeric Aβ. Similar effects were observed in identified hippocampal interneurons prepared from GFP-GAD mice.

conclusionThese findings suggest that Aβ modulation of cholinergic signaling in hippocampal GABAergic interneurons via α7β2-nAChRs could be an early and critical event in Aβ-induced functional abnormalities of hippocampal function, which may be relevant to learning and memory deficits in AD.

Indexed as

alpha7 Nicotinic Acetylcholine ReceptorAmyloid beta-PeptidesAnimalsCA1 Region, HippocampalCells, CulturedDihydro-beta-ErythroidineGABAergic NeuronsGene Knock-In TechniquesInterneuronsMaleMembrane PotentialsMiceMice, Inbred C57BLMice, Inbred ICRMice, KnockoutNicotinic Antagonistsalpha7 Nicotinic Acetylcholine ReceptorAmyloid beta-Peptidesamyloid beta-protein (1-42)Chrna7 protein, mouseDihydro-beta-ErythroidineNicotinic AntagonistsPeptide FragmentsReceptors, Nicotinic

Identifiers

PMID23272676
PMCPMC3573893
OpenAlexW2163994482

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.