Evidence map›Paper›PMID 25108425›Full record

ArticleMolecular neurodegeneration2014

Vascular and parenchymal amyloid pathology in an Alzheimer disease knock-in mouse model: interplay with cerebral blood flow.

Hongmei Li, Qinxi Guo, Taeko Inoue, Vinicia A Polito, Katsuhiko Tabuchi, Robert E Hammer, Robia G Pautler, George E Taffet, Hui Zheng

Open access · goldAbstract read
In one paragraph

Article in Molecular neurodegeneration, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

64 citing papers in PubMed, 87 citations in OpenAlex.

  1. Review
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  11. Inhibiting CaNature neuroscience · 2024
    Article
  12. Article
  13. Alzheimer's disease pathophysiology in the Retina.Progress in retinal and eye research · 2024
    Review
  14. Review
  15. Article
  16. Review
  17. Review
  18. Chronic cerebral hypoperfusion and blood-brain barrier disruption in uninjured brain areas of rhesus monkeys subjected to transient ischemic stroke.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2022
    Article
  19. Review
  20. Article

4 more citing papers are in PubMed but not listed here.

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

9 authors at 3 institutions in 2 countries.

Hongmei Li
Qinxi Guo
Taeko Inoue
Vinicia A Polito
Katsuhiko Tabuchi
Robert E Hammer
Robia G Pautler
George E Taffet
Hui ZhengHuffington Center on Aging, Baylor College of Medicine, Houston, Texas 77030, USA. huiz@bcm.edu.
Baylor College of Medicine · USThe University of Texas Southwestern Medical Center · USShinshu University · JP

Funding

UNDERSTANDING FXTAS AMONG MALES WITH THE FMR1 PREMUTATIONP30HD024064 · NICHD · BAYLOR COLLEGE OF MEDICINE · PI TOLIAS, KIMBERLY R · 1988 to 2013
$29.4M
Knockin Mouse Models of Alzheimers DiseaseR01AG020670 · NIA · BAYLOR COLLEGE OF MEDICINE · PI Hui Zheng · 2002 to 2026
$9.1M
Steps towards a paternal gene activation therapy for Angelman syndromeU54HD083092 · NICHD · BAYLOR COLLEGE OF MEDICINE · PI NELSON, DAVID LOREN, NEUL, JEFFREY L · 2014 to 2019
$7.8M
Pathophysiology of APP in vivo.R01AG032051 · NIA · BAYLOR COLLEGE OF MEDICINE · PI ZHENG, HUI · 2008 to 2017
$3.5M
Mechanism and therapy of AB-42-specific gamma-secretaseR01NS076117 · NINDS · SLOAN-KETTERING INST CAN RESEARCH · PI LI, YUEMING, ZHENG, HUI · 2011 to 2015
$2.8M
NIA NIH HHS AG020670NIA NIH HHS AG032051NIA NIH HHS R01 AG020670NIA NIH HHS R01 AG032051NICHD NIH HHS HD024064NICHD NIH HHS U54 HD083092NINDS NIH HHS NS076117NINDS NIH HHS R01 NS076117
6 · The paper itself

Abstract

backgroundAccumulation and deposition of β-amyloid peptides (Aβ) in the brain is a central event in the pathogenesis of Alzheimer's disease (AD). Besides the parenchymal pathology, Aβ is known to undergo active transport across the blood-brain barrier and cerebral amyloid angiopathy (CAA) is a prominent feature in the majority of AD. Although impaired cerebral blood flow (CBF) has been implicated in faulty Aβ transport and clearance, and cerebral hypoperfusion can exist in the pre-clinical phase of Alzheimer's disease (AD), it is still unclear whether it is one of the causal factors for AD pathogenesis, or an early consequence of a multi-factor condition that would lead to AD at late stage. To study the potential interaction between faulty CBF and amyloid accumulation in clinical-relevant situation, we generated a new amyloid precursor protein (APP) knock-in allele that expresses humanized Aβ and a Dutch mutation in addition to Swedish/London mutations and compared this line with an equivalent knock-in line but in the absence of the Dutch mutation, both crossed onto the PS1M146V knock-in background.

resultsIntroduction of the Dutch mutation results in robust CAA and parenchymal Aβ pathology, age-dependent reduction of spatial learning and memory deficits, and CBF reduction as detected by fMRI. Direct manipulation of CBF by transverse aortic constriction surgery on the left common carotid artery caused differential changes in CBF in the anterior and middle region of the cortex, where it is reduced on the left side and increased on the right side. However these perturbations in CBF resulted in the same effect: both significantly exacerbate CAA and amyloid pathology.

conclusionsOur study reveals a direct and positive link between vascular and parenchymal Aβ; both can be modulated by CBF. The new APP knock-in mouse model recapitulates many symptoms of AD including progressive vascular and parenchymal Aβ pathology and behavioral deficits in the absence of APP overexpression.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAnimalsBehavior, AnimalBrainCerebral Amyloid AngiopathyCerebrovascular CirculationDisease Models, AnimalEnzyme-Linked Immunosorbent AssayFluorescent Antibody TechniqueGene Knock-In TechniquesHumansImmunohistochemistryMagnetic Resonance ImagingMiceAmyloid beta-Peptides

Identifiers

PMID25108425
PMCPMC4132280
OpenAlexW2167043901

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.