Evidence map›Paper›PMID 17566763›Full record

ArticleNeuroImage2007

Live imaging of neuronal connections by magnetic resonance: Robust transport in the hippocampal-septal memory circuit in a mouse model of Down syndrome.

Elaine L Bearer, Xiaowei Zhang, Russell E Jacobs

Open access · greenAbstract read
In one paragraph

Article in NeuroImage, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

21 citing papers in PubMed, 29 citations in OpenAlex.

  1. Quality Assurance Strategies for Brain State Characterization by MEMRI.bioRxiv : the preprint server for biology · 2026
    Article
  2. Reconfiguration of brain-wide neural activity after early life adversity.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  3. Reconfiguration of brain-wide neural activity after early life adversity.bioRxiv : the preprint server for biology · 2025
    Article
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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

3 authors at 3 institutions in 1 country.

Elaine L BearerDepartment of Pathology and Laboratory Medicine, Brown University, Providence, RI 02912, USA.
Xiaowei Zhang
Russell E Jacobs
Brown University · USCalifornia Institute of Technology · USImaging Center · US

Funding

MOUSE BIRNU24RR021760 · NCRR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI TOGA, ARTHUR W · 2005 to 2009
$11.6M
In Vivo Detection of Neuronal ActivityR01DA018184 · NIDA · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI JACOBS, RUSSELL E · 2006 to 2010
$1.8M
MOLECULAR MECHANISMS OF ACTIN DYNAMICS IN PLATELETSR01GM047368 · NIGMS · BROWN UNIVERSITY · PI BEARER, ELAINE L · 1994 to 2003
$1.2M
Molecular mechanisms of anterograde transportR01NS046810 · NINDS · BROWN UNIVERSITY · PI BEARER, ELAINE L · 2004 to 2007
$1.1M
NCRR NIH HHS U24 RR021760NIDA NIH HHS R01 DA018184NIDA NIH HHS R01DA018184NIGMS NIH HHS GM47368NIGMS NIH HHS R01 GM047368NINDS NIH HHS NS046810NINDS NIH HHS R01 NS046810
6 · The paper itself

Abstract

Connections from hippocampus to septal nuclei have been implicated in memory loss and the cognitive impairment in Down syndrome (DS). We trace these connections in living mice by Mn(2+) enhanced 3D MRI and compare normal with a trisomic mouse model of DS, Ts65Dn. After injection of 4 nl of 200 mM Mn(2+) into the right hippocampus, Mn(2+) enhanced circuitry was imaged at 0.5, 6, and 24 h in each of 13 different mice by high resolution MRI to detect dynamic changes in signal over time. The pattern of Mn(2+) enhanced signal in vivo correlated with the histologic pattern in fixed brains of co-injected 3kD rhodamine-dextran-amine, a classic tracer. Statistical parametric mapping comparing intensity changes between different time points revealed that the dynamics of Mn(2+) transport in this pathway were surprisingly more robust in DS mice than in littermate controls, with statistically significant intensity changes in DS appearing at earlier time points along expected pathways. This supports reciprocal alterations of transport in the hippocampal-forebrain circuit as being implicated in DS and argues against a general failure of transport. This is the first examination of in vivo transport dynamics in this pathway and the first report of elevated transport in DS.

Indexed as

Disease Models, AnimalAnimalsAxonal TransportBrain MappingCholinergic FibersDominance, CerebralDown SyndromeHippocampusImage EnhancementImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMental RecallMiceMice, Neurologic MutantsNerve Net

Identifiers

PMID17566763
PMCPMC2074885
OpenAlexW2018497785

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.