Cited by 7,463Acute Ischemic Stroke ManagementNeurological Disease Mechanisms and TreatmentsCerebrovascular and Carotid Artery Diseases

Reversible middle cerebral artery occlusion without craniectomy in rats.

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Longa, E Z, Weinstein, P R, Carlson, S, Cummins, R·1989·Stroke

Abstract

To develop a simple, relatively noninvasive small-animal model of reversible regional cerebral ischemia, we tested various methods of inducing infarction in the territory of the right middle cerebral artery (MCA) by extracranial vascular occlusion in rats. In preliminary studies, 60 rats were anesthetized with ketamine and different combinations of vessels were occluded; blood pressure and arterial blood gases were monitored. Neurologic deficit, mortality rate, gross pathology, and in some instances, electroencephalogram and histochemical staining results were evaluated in all surviving rats. The principal procedure consisted of introducing a 4-0 nylon intraluminal suture into the cervical internal carotid artery (ICA) and advancing it intracranially to block blood flow into the MCA; collateral blood flow was reduced by interrupting all branches of the external carotid artery (ECA) and all extracranial branches of the ICA. In some groups of rats, bilateral vertebral or contralateral carotid artery occlusion was also performed. India ink perfusion studies in 20 rats documented blockage of MCA blood flow in 14 rats subjected to permanent occlusion and the restoration of blood flow to the MCA territory in six rats after withdrawal of the suture from the ICA. The best method of MCA occlusion was then selected for further confirmatory studies, including histologic examination, in five additional groups of rats anesthetized with halothane. Seven of eight rats that underwent permanent occlusion of the MCA had resolving moderately severe neurologic deficits (Grade 2 of 4) and unilateral infarcts averaging 37.6 +/- 5.5% of the coronal sectional area at 72 hours after the onset of occlusion.(ABSTRACT TRUNCATED AT 250 WORDS)

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  • The filament model in mice allows non-invasive induction of focal cerebral ischemia and leads to reproducible infarction in the middle cerebral artery territory, enabling robust quantifications on cellular reactions.

    “Thereby, the filament model in mice (Longa et al., 1989) allowed non-invasive induction of focal cerebral ischemia and led to reproducible infarction in the territory of the middle cerebral artery (Longa et al., 1989; Durukan and Tatlisumak, 2007; Engel et al., 2011), enabling robust quantifications on cellular reactions.”

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Research works printed but not linked: 5

  1. Brown AW, Brierley JB: Anoxic ischemic cell changes in rat brain: Light microscopic and fine structural observations. J NeurolSci 1972;16:59-84
  2. Laas R, Igloffstein J, Meyerhoff S: Cerebral infarction due to carotid occlusion and carbon monoxide exposure. J Neurol Neurosurg Psychiatry 1983;46:756-773
  3. Koizumi J, Nakazawa T, Yoshida Y: Reperfusable brain infarction model in the rat (abstract). Proceedings of the 10th Meeting of the Japanese Stroke Society, Kyoto, Japan, April 18-19, 1985, p 159
  4. Pulsinelli WA, Brierley JB: A new model of bilateral hemi- spheric ischemia in the anesthetized rat. Stroke 1979; 10:267-272
  5. Rieke KG, Bowers ED, Penn P: Vascular supply pattern to rat caudoputamen and globus pallidus: Scanning electronmi- croscopic study of vascular endocast of stroke-prone ves- sels. Stroke 1981;12:840-846

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Authors
Longa, E. Z., Weinstein, P. R., Carlson, S., & Cummins, R.
Affiliations
University of California, San Francisco (US)
Venue
Stroke
Published
1989-01
Volume
20
Issue
1
Pages
84-91
ISSN
  • 0039-2499 (ISSN-L)
  • 1524-4628
OpenAlex
W2112505121
Cited by
7,463
References
18
Citations by year
2026: 268 · 2025: 353 · 2024: 373 · 2023: 341 · 2022: 394 · 2021: 390 · 2020: 373 · 2019: 337 · 2018: 312 · 2017: 345 · 2016: 305 · 2015: 334 · 2014: 312 · 2013: 307 · 2012: 312
FWCI
13.35
Type
journal article
Language
en
Open access
Locations
  • Stroke (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Cerebrovascular and Carotid Artery Diseases
Keywords
middle cerebral artery occlusion, reversible cerebral ischemia, internal carotid artery, external carotid artery occlusion, collateral circulation, cerebral infarction, neurological deficit, rat model
MeSH terms
Animals, Arterial Occlusive Diseases, Brain, Cerebral Arteries, Craniotomy, Disease Models, Animal, Electroencephalography, Male, Nervous System, Rats, Inbred Strains, Suture Techniques, Time Factors, Rats

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