Evidence map›Paper›PMID 30565792›Full record

ArticleThe European journal of neuroscience2019

Kalirin-7 prevents dendritic spine dysgenesis induced by amyloid beta-derived oligomers.

Zhong Xie, Lauren P Shapiro, Michael E Cahill, Theron A Russell, Pascale N Lacor, William L Klein, Peter Penzes

Open access · greenAbstract read
In one paragraph

Article in The European journal of neuroscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.0field-weighted citation impact, top 24% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Are Methylation Patterns in theInternational journal of molecular sciences · 2024
    Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. The Toxicity and Polymorphism of β-Amyloid Oligomers.International journal of molecular sciences · 2020
    Review
  10. Review
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

7 authors at 1 institution in 1 country.

Zhong XieDepartment of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Lauren P ShapiroDepartment of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Michael E CahillDepartment of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Theron A RussellDepartment of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Pascale N LacorDepartment of Neurobiology, Weinberg College of Arts and Sciences, Northwestern University, Evanston, Illinois.
William L KleinDepartment of Neurobiology, Weinberg College of Arts and Sciences, Northwestern University, Evanston, Illinois.
Peter PenzesDepartment of Physiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
Northwestern University · US

Funding

Small GTPase signaling in spinesR01MH071316 · NIMH · NORTHWESTERN UNIVERSITY AT CHICAGO · PI BARBOLINA, MARIA V., PENZES, PETER · 2005 to 2025
$7.1M
NIH-NIMH 5R01MH071316-10NIMH NIH HHS R01 MH071316
6 · The paper itself

Abstract

Synapse degeneration and dendritic spine dysgenesis are believed to be crucial early steps in Alzheimer's disease (AD), and correlate with cognitive deficits in AD patients. Soluble amyloid beta (Aβ)-derived oligomers, also termed Aβ-derived diffusible ligands (ADDLs), accumulate in the brain of AD patients and play a crucial role in AD pathogenesis. ADDLs bind to mature hippocampal neurons, induce structural changes in dendritic spines and contribute to neuronal death. However, mechanisms underlying structural and toxic effects are not fully understood. Here, we report that ADDLs bind to cultured mature cortical pyramidal neurons and induce spine dysgenesis. ADDL treatment induced the rapid depletion of kalirin-7, a brain-specific guanine-nucleotide exchange factor for the small GTPase Rac1, from spines. Kalirin-7 is a key regulator of dendritic spine morphogenesis and maintenance in forebrain pyramidal neurons and here we show that overexpression of kalirin-7 prevents ADDL-induced spine degeneration. Taken together, our results suggest that kalirin-7 may play a role in the early events leading to synapse degeneration, and its pharmacological activation may prevent or delay synapse pathology in AD.

Indexed as

Amyloid beta-PeptidesAnimalsCells, CulturedDendritic SpinesGuanine Nucleotide Exchange FactorsNerve DegenerationPyramidal CellsRatsRats, Sprague-DawleyAmyloid beta-PeptidesGuanine Nucleotide Exchange FactorsKalrn protein, ratAlzheimer's diseaseguanine-nucleotide exchange factorsRac1synapse

Identifiers

PMID30565792
PMCPMC6559832
OpenAlexW2904803069

What Socratic 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 Socratic graph.