Preclinical animal studies in ischemic stroke: Challenges and some solutions

Abstract Despite the impressive efficacies demonstrated in preclinical research, hundreds of potentially neuroprotective drugs have failed to provide effective neuroprotection for ischemic stroke in human clinical trials. Lack of a powerful animal model for human ischemic stroke could be a major rea...

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Main Authors: Sunil K. Narayan, Simy GraceCherian, Prakash BabuPhaniti, Saravana BabuChidambaram, A. Hannah RachelVasanthi, Murugesan Arumugam
Format: Article
Language:English
Published: Wiley 2021-06-01
Series:Animal Models and Experimental Medicine
Subjects:
Online Access:https://doi.org/10.1002/ame2.12166
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author Sunil K. Narayan
Simy GraceCherian
Prakash BabuPhaniti
Saravana BabuChidambaram
A. Hannah RachelVasanthi
Murugesan Arumugam
author_facet Sunil K. Narayan
Simy GraceCherian
Prakash BabuPhaniti
Saravana BabuChidambaram
A. Hannah RachelVasanthi
Murugesan Arumugam
author_sort Sunil K. Narayan
collection DOAJ
description Abstract Despite the impressive efficacies demonstrated in preclinical research, hundreds of potentially neuroprotective drugs have failed to provide effective neuroprotection for ischemic stroke in human clinical trials. Lack of a powerful animal model for human ischemic stroke could be a major reason for the failure to develop successful neuroprotective drugs for ischemic stroke. This review recapitulates the available cerebral ischemia animal models, provides an anatomical comparison of the circle of Willis of each species, and describes the functional assessment tests used in these ischemic stroke models. The distinct differences between human ischemic stroke and experimental stroke in available animal models is explored. Innovative animal models more closely resembling human strokes, better techniques in functional outcome assessment and better experimental designs generating clearer and stronger evidence may help realise the development of truly neuroprotective drugs that will benefit human ischemic stroke patients. This may involve use of newer molecules or revisiting earlier studies with new experimental designs. Translation of any resultant successes may then be tested in human clinical trials with greater confidence and optimism.
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spelling doaj.art-4db3fd17d015454e92f2f87c03ee09012022-12-21T21:24:22ZengWileyAnimal Models and Experimental Medicine2576-20952021-06-014210411510.1002/ame2.12166Preclinical animal studies in ischemic stroke: Challenges and some solutionsSunil K. Narayan0Simy GraceCherian1Prakash BabuPhaniti2Saravana BabuChidambaram3A. Hannah RachelVasanthi4Murugesan Arumugam5Comprehensive Stroke Care and Neurobiology Centre, Department of Neurology Jawaharlal Institute of Postgraduate Medical Education and Research Puducherry IndiaComprehensive Stroke Care and Neurobiology Centre, Department of Neurology Jawaharlal Institute of Postgraduate Medical Education and Research Puducherry IndiaDepartment of Biotechnology & School of Medical Sciences University of Hyderabad Hyderabad IndiaDepartment of Pharmacology JSS Medical College Mysore IndiaDepartment of Biotechnology School of Life science University of Pondicherry Pondicherry IndiaComprehensive Stroke Care and Neurobiology Centre, Department of Neurology Jawaharlal Institute of Postgraduate Medical Education and Research Puducherry IndiaAbstract Despite the impressive efficacies demonstrated in preclinical research, hundreds of potentially neuroprotective drugs have failed to provide effective neuroprotection for ischemic stroke in human clinical trials. Lack of a powerful animal model for human ischemic stroke could be a major reason for the failure to develop successful neuroprotective drugs for ischemic stroke. This review recapitulates the available cerebral ischemia animal models, provides an anatomical comparison of the circle of Willis of each species, and describes the functional assessment tests used in these ischemic stroke models. The distinct differences between human ischemic stroke and experimental stroke in available animal models is explored. Innovative animal models more closely resembling human strokes, better techniques in functional outcome assessment and better experimental designs generating clearer and stronger evidence may help realise the development of truly neuroprotective drugs that will benefit human ischemic stroke patients. This may involve use of newer molecules or revisiting earlier studies with new experimental designs. Translation of any resultant successes may then be tested in human clinical trials with greater confidence and optimism.https://doi.org/10.1002/ame2.12166cerebral ischemiacircle of Willisfocal ischemic modelsfunctional assessment testsneuroprotectionpreclinical model
spellingShingle Sunil K. Narayan
Simy GraceCherian
Prakash BabuPhaniti
Saravana BabuChidambaram
A. Hannah RachelVasanthi
Murugesan Arumugam
Preclinical animal studies in ischemic stroke: Challenges and some solutions
Animal Models and Experimental Medicine
cerebral ischemia
circle of Willis
focal ischemic models
functional assessment tests
neuroprotection
preclinical model
title Preclinical animal studies in ischemic stroke: Challenges and some solutions
title_full Preclinical animal studies in ischemic stroke: Challenges and some solutions
title_fullStr Preclinical animal studies in ischemic stroke: Challenges and some solutions
title_full_unstemmed Preclinical animal studies in ischemic stroke: Challenges and some solutions
title_short Preclinical animal studies in ischemic stroke: Challenges and some solutions
title_sort preclinical animal studies in ischemic stroke challenges and some solutions
topic cerebral ischemia
circle of Willis
focal ischemic models
functional assessment tests
neuroprotection
preclinical model
url https://doi.org/10.1002/ame2.12166
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AT prakashbabuphaniti preclinicalanimalstudiesinischemicstrokechallengesandsomesolutions
AT saravanababuchidambaram preclinicalanimalstudiesinischemicstrokechallengesandsomesolutions
AT ahannahrachelvasanthi preclinicalanimalstudiesinischemicstrokechallengesandsomesolutions
AT murugesanarumugam preclinicalanimalstudiesinischemicstrokechallengesandsomesolutions