Cited by 81Stroke Rehabilitation and RecoveryNerve injury and regenerationAcute Ischemic Stroke Management

Remodeling of the corticospinal innervation and spontaneous behavioral recovery after ischemic stroke in adult mice

Open access
Liu, Zhongwu, Zhang, Rui Lan, Li, Yi, Cui, Yisheng, Chopp, Michael·2009·Stroke

Abstract

Background and Purpose— To elucidate how the motor pathways rewire the denervated tissue after stroke, we investigated remodeling of the corticospinal tract (CST) in transgenic mice with yellow fluorescent protein CST labeling in conjunction with transsynaptic pseudorabies virus retrograde tracing. Methods— Adult male CST-yellow fluorescent protein mice were subjected to permanent right middle cerebral artery occlusion (n=8/group). Foot-fault test was performed to monitor functional deficit and recovery. Pseudorabies virus tracer was injected into the left forelimb muscles at 1 or 4 weeks after middle cerebral artery occlusion (4 days before euthanasia), respectively. A third group of CST-yellow fluorescent protein mice without middle cerebral artery occlusion was used for normal control (n=6). The yellow fluorescent protein labeling of CST in the cervical cord and pseudorabies virus labeling of pyramidal neurons in the bilateral cortices were measured on vibratome sections using a confocal imaging system. Results— Compared with normal animals, axonal density in the stroke-affected side of the cervical cord was significantly decreased at 11 days ( P <0.001) and significantly increased at 32 days after stroke compared with the Day 11 values ( P <0.05). Pseudorabies virus labeling was significantly decreased in the ischemic hemisphere 11 days after middle cerebral artery occlusion ( P <0.001). In contrast, a significant increase was observed in pseudorabies virus labeling of bilateral cortices 32 days after stroke compared with 11 days ( P <0.05). The CST axonal density in the denervated spinal cord and pyramidal neuron labeling in the bilateral cortices were significantly correlated with behavioral recovery ( P <0.05). Conclusions— Spontaneous functional recovery after stroke may, at least in part, be attributed to neuronal remodeling in the corticospinal system.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1161/strokeaha.109.547265

Cites

24 of 24 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Liu, Z., Zhang, R. L., Li, Y., Cui, Y., & Chopp, M.
Affiliations
Oakland University (US)
Venue
Stroke
Published
2009-07
Volume
40
Issue
7
Pages
2546-2551
ISSN
  • 0039-2499 (ISSN-L)
  • 1524-4628
OpenAlex
W2117753971
Cited by
81
References
24
Citations by year
2026: 1 · 2025: 1 · 2024: 5 · 2023: 1 · 2022: 3 · 2021: 2 · 2020: 10 · 2019: 6 · 2018: 4 · 2017: 5 · 2016: 4 · 2015: 5 · 2014: 8 · 2013: 5 · 2012: 9
FWCI
7.13
Type
journal article
Language
en
Open access
Locations
  • Stroke (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Princeton University
  • National Institute of Neurological Disorders and Stroke (P01NS42345, P01NS042345)
Topics
  • Health Sciences › Medicine › Rehabilitation › Stroke Rehabilitation and Recovery
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Nerve injury and regeneration
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
Keywords
corticospinal tract, ischemic stroke, motor reorganization, axon density, pyramidal neurons, middle cerebral artery occlusion, cervical spinal cord
MeSH terms
Animals, Axons, Behavior, Animal, Cerebral Cortex, Disease Models, Animal, Fluorescent Antibody Technique, Luminescent Proteins, Male, Mice, Transgenic, Herpesvirus 1, Suid, Pyramidal Tracts, Synapses, Pyramidal Cells, Recovery of Function, Stroke, Mice

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review