Cited by 93Neurological Disease Mechanisms and TreatmentsAcute Ischemic Stroke ManagementTraumatic Brain Injury and Neurovascular Disturbances

A model of global cerebral ischemia in C57 BL/6 mice

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Yonekura, Ichiro, Kawahara, Nobutaka, Nakatomi, Hirofumi, Furuya, Kazuhide, Kirino, Takaaki·2004·Journal of Cerebral Blood Flow & Metabolism

Abstract

A reproducible model of global cerebral ischemia in mice is essential for elucidating the molecular mechanism of ischemic neuronal injury. Such a model is particularly important in the mouse because many genetically engineered mutant animals are available. In C57BL/6 and SV129/EMS mice, we evaluated a three-vessel occlusion model. Occlusion of the basilar artery with a miniature clip was followed by bilateral carotid occlusion. The mean cortical cerebral blood flow was reduced to less than 10% of the preischemic value, and the mean anoxic depolarization was attained within 1 minute. In C57BL/6 mice, there was CA1 hippocampal neuronal degeneration 4 days after ischemia. Neuronal damage depended upon ischemic duration: the surviving neuronal count was 78.5 ± 8.5% after 8-minute ischemia and 8.4 ± 12.7% after 14-minute ischemia. In SV129/EMS mice, similar neuronal degeneration was not observed after 14-minute ischemia. The global ischemia model in C57BL/6 mice showed high reproducibility and consistent neuronal injury in the CA1 sector, indicating that comparison of ischemic outcome between wild-type and mutant mice could provide meaningful data using the C57BL/6 genetic background. Strain differences in this study highlight the need for consideration of genetic background when evaluating ischemia experiments in mice.

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Crossref · 10.1097/01.wcb.0000096063.84070.c1

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  • Studies have demonstrated delayed loss of C57BL/6 mouse cortical neurons caused by brief global ischemia using similar models.

    “However, studies have also demonstrated delayed loss of C57BL/6 mouse cortical neurons caused by brief global ischemia using similar models (Olsson et al., 2003;Yonekura et al., 2004).”

    From Two-Photon Imaging of Stroke Onset<i>In Vivo</i>Reveals That NMDA-Receptor Independent Ischemic Depolarization Is the Major Cause of Rapid Reversible Damage to Dendrites and Spines (2008) · cites this paper as Yonekura et al., 2004

    The Discussion reports ischemic injury in the cortex of C57BL/6 mice after a brief global-ischemia procedure, but says cortical injury was inconsistent in frequency and intensity. The ‘Ischemic injury in other regions’ section reports TUNEL-positive cells in cortical layers after 14-minute ischemia; the clear temporal evidence for delayed neuronal loss, however, concerns hippocampal CA1 neurons, not cortical neurons. (LLM, conf=0.84)

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  • Most previous work in rodent global ischemia concerns the selective delayed death of hippocampal CA1 neurons triggered by ischemia in excess of 10 min.

    “Most previous work in rodent global ischemia concerns the selective delayed death of hippocampal CA1 neurons triggered ischemia in excess of 10 min (Traystman, 2003;Yonekura et al., 2004).”

    From Two-Photon Imaging of Stroke Onset<i>In Vivo</i>Reveals That NMDA-Receptor Independent Ischemic Depolarization Is the Major Cause of Rapid Reversible Damage to Dendrites and Spines (2008) · cites this paper as Yonekura et al., 2004

    The Abstract says numerous studies have examined selective ischemic injury in hippocampal CA1 neurons. The CA1 injury section reports delayed injury after ischemia lasting longer than 10 minutes in this study's C57BL/6 mice, but does not establish that this duration characterizes most previous rodent work; the Discussion says the duration required in these mice was longer than previously reported for rats and gerbils. Page numbers were not provided in our copy. (LLM, conf=0.88)

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Authors
Yonekura, I., Kawahara, N., Nakatomi, H., Furuya, K., & Kirino, T.
Affiliations
Japan Science and Technology Agency (JP)
Corresponding author
Kawahara, Nobutaka
Venue
Journal of Cerebral Blood Flow & Metabolism
Published
2004-02
Volume
24
Issue
2
Pages
151-158
ISSN
  • 0271-678X (ISSN-L)
  • 1559-7016
OpenAlex
W2069353696
Cited by
93
References
17
Citations by year
2023: 2 · 2022: 1 · 2021: 4 · 2020: 4 · 2019: 2 · 2018: 5 · 2017: 4 · 2016: 6 · 2015: 9 · 2014: 7 · 2013: 7 · 2012: 5
FWCI
2.94
Type
journal article
Language
en
Open access
Locations
  • Journal of Cerebral Blood Flow & Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Neurology › Neurological Disease Mechanisms and Treatments
  • Health Sciences › Medicine › Epidemiology › Acute Ischemic Stroke Management
  • Health Sciences › Medicine › Neurology › Traumatic Brain Injury and Neurovascular Disturbances
Keywords
global cerebral ischemia, basilar artery occlusion, bilateral common carotid artery occlusion, C57BL/6 mice, anoxic depolarization, ischemic neuronal injury, ischemic time, genetic background effects, mouse strain differences
MeSH terms
Animals, Basilar Artery, Body Temperature, Brain Ischemia, Cerebrovascular Circulation, Disease Models, Animal, Electrophysiology, Hemodynamics, Hippocampus, Male, Mice, Inbred C57BL, Neurons, Regional Blood Flow, Surgical Instruments, In Situ Nick-End Labeling, Mice

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