Dynamics of cerebral tissue injury and perfusion after temporary hypoxia-ischemia in the rat : evidence for region-specific sensitivity and delayed damage

R.M. Dijkhuizen, S. Knollema, H.B. Worp, van der, G.J. Horst, ter, D.J. Wildt, de, J.W. Berkelbach van der Sprenkel, C.A.F. Tulleken, K. Nicolaij

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Abstract

Background and Purpose: Selective regional sensitivity and delayed damage in cerebral ischemia provide opportunities for directed and late therapy for stroke. Our aim was to characterize the spatial and temporal profile of ischemia-induced changes in cerebral perfusion and tissue status, with the use of noninvasive MRI techniques, to gain more insight in region-specific vulnerability and delayed damage. Methods: Rats underwent 20 minutes of unilateral cerebral hypoxia-ischemia (HI). We performed combined repetitive quantitative diffusion-weighted, T2-weighted, and dynamic susceptibility contrast-enhanced MRI from before HI to 5 hours after HI. Data were correlated with parallel blood oxygenation level-dependent MRI and laser-Doppler flowmetry. Finally, MRI and histology were done 24 and 72 hours after HI. Results: Severe hypoperfusion during HI caused acute reductions of the apparent diffusion coefficient (ADC) of tissue water in the ipsilateral hemisphere. Reperfusion resulted in dynamic perfusion alterations that varied spatially. The ADC recovered completely within 1 hour in the hippocampus (from 0.68 +/- 0.07 to 0.83 +/- 0.09x10 sup -3 mm2/s), cortex (from 0.56 +/- 0.06 to 0.77 +/- 0.07x10 sup -3 mm2/s), and caudate putamen (from 0.58 +/- 0.06 to 0.75 +/- 0.06x10 sup -3 mm2/s) but only partially or not at all in the thalamus (from 0.65 +/- 0.07 to 0.68 +/- 0.12x10 sup -3 mm2/s) and substantia nigra (from 0.80 +/- 0.08 to 0.76 +/- 0.10x10 sup -3 mm2/s). Secondary ADC reductions, accompanied by significant T2 elevations and histological damage, were observed after 24 hours. Initial and secondary ADC decreases were observed invariably in the hippocampus, cortex, and caudate putamen and in approximately 70% of the animals in the thalamus and substantia nigra. Conclusions: Region-specific responses and delayed ischemic damage after transient HI were demonstrated by MRI. Acute reperfusion-induced normalization of ADCs appeared to poorly predict ultimate tissue recovery since secondary, irreversible damage developed eventually.
Original languageEnglish
Pages (from-to)695-704
JournalStroke : a Journal of Celebral Circulation
Volume29
Issue number3
DOIs
Publication statusPublished - 1998

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Ischemia
Perfusion
Wounds and Injuries
Putamen
Substantia Nigra
Thalamus
Reperfusion
Hippocampus
Brain Hypoxia-Ischemia
Laser-Doppler Flowmetry
Brain Ischemia
Hypoxia
Histology
Stroke
Water
Therapeutics

Cite this

Dijkhuizen, R. M., Knollema, S., Worp, van der, H. B., Horst, ter, G. J., Wildt, de, D. J., Berkelbach van der Sprenkel, J. W., ... Nicolaij, K. (1998). Dynamics of cerebral tissue injury and perfusion after temporary hypoxia-ischemia in the rat : evidence for region-specific sensitivity and delayed damage. Stroke : a Journal of Celebral Circulation, 29(3), 695-704. https://doi.org/10.1161/01.STR.29.3.695
Dijkhuizen, R.M. ; Knollema, S. ; Worp, van der, H.B. ; Horst, ter, G.J. ; Wildt, de, D.J. ; Berkelbach van der Sprenkel, J.W. ; Tulleken, C.A.F. ; Nicolaij, K. / Dynamics of cerebral tissue injury and perfusion after temporary hypoxia-ischemia in the rat : evidence for region-specific sensitivity and delayed damage. In: Stroke : a Journal of Celebral Circulation. 1998 ; Vol. 29, No. 3. pp. 695-704.
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title = "Dynamics of cerebral tissue injury and perfusion after temporary hypoxia-ischemia in the rat : evidence for region-specific sensitivity and delayed damage",
abstract = "Background and Purpose: Selective regional sensitivity and delayed damage in cerebral ischemia provide opportunities for directed and late therapy for stroke. Our aim was to characterize the spatial and temporal profile of ischemia-induced changes in cerebral perfusion and tissue status, with the use of noninvasive MRI techniques, to gain more insight in region-specific vulnerability and delayed damage. Methods: Rats underwent 20 minutes of unilateral cerebral hypoxia-ischemia (HI). We performed combined repetitive quantitative diffusion-weighted, T2-weighted, and dynamic susceptibility contrast-enhanced MRI from before HI to 5 hours after HI. Data were correlated with parallel blood oxygenation level-dependent MRI and laser-Doppler flowmetry. Finally, MRI and histology were done 24 and 72 hours after HI. Results: Severe hypoperfusion during HI caused acute reductions of the apparent diffusion coefficient (ADC) of tissue water in the ipsilateral hemisphere. Reperfusion resulted in dynamic perfusion alterations that varied spatially. The ADC recovered completely within 1 hour in the hippocampus (from 0.68 +/- 0.07 to 0.83 +/- 0.09x10 sup -3 mm2/s), cortex (from 0.56 +/- 0.06 to 0.77 +/- 0.07x10 sup -3 mm2/s), and caudate putamen (from 0.58 +/- 0.06 to 0.75 +/- 0.06x10 sup -3 mm2/s) but only partially or not at all in the thalamus (from 0.65 +/- 0.07 to 0.68 +/- 0.12x10 sup -3 mm2/s) and substantia nigra (from 0.80 +/- 0.08 to 0.76 +/- 0.10x10 sup -3 mm2/s). Secondary ADC reductions, accompanied by significant T2 elevations and histological damage, were observed after 24 hours. Initial and secondary ADC decreases were observed invariably in the hippocampus, cortex, and caudate putamen and in approximately 70{\%} of the animals in the thalamus and substantia nigra. Conclusions: Region-specific responses and delayed ischemic damage after transient HI were demonstrated by MRI. Acute reperfusion-induced normalization of ADCs appeared to poorly predict ultimate tissue recovery since secondary, irreversible damage developed eventually.",
author = "R.M. Dijkhuizen and S. Knollema and {Worp, van der}, H.B. and {Horst, ter}, G.J. and {Wildt, de}, D.J. and {Berkelbach van der Sprenkel}, J.W. and C.A.F. Tulleken and K. Nicolaij",
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Dijkhuizen, RM, Knollema, S, Worp, van der, HB, Horst, ter, GJ, Wildt, de, DJ, Berkelbach van der Sprenkel, JW, Tulleken, CAF & Nicolaij, K 1998, 'Dynamics of cerebral tissue injury and perfusion after temporary hypoxia-ischemia in the rat : evidence for region-specific sensitivity and delayed damage', Stroke : a Journal of Celebral Circulation, vol. 29, no. 3, pp. 695-704. https://doi.org/10.1161/01.STR.29.3.695

Dynamics of cerebral tissue injury and perfusion after temporary hypoxia-ischemia in the rat : evidence for region-specific sensitivity and delayed damage. / Dijkhuizen, R.M.; Knollema, S.; Worp, van der, H.B.; Horst, ter, G.J.; Wildt, de, D.J.; Berkelbach van der Sprenkel, J.W.; Tulleken, C.A.F.; Nicolaij, K.

In: Stroke : a Journal of Celebral Circulation, Vol. 29, No. 3, 1998, p. 695-704.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Dynamics of cerebral tissue injury and perfusion after temporary hypoxia-ischemia in the rat : evidence for region-specific sensitivity and delayed damage

AU - Dijkhuizen, R.M.

AU - Knollema, S.

AU - Worp, van der, H.B.

AU - Horst, ter, G.J.

AU - Wildt, de, D.J.

AU - Berkelbach van der Sprenkel, J.W.

AU - Tulleken, C.A.F.

AU - Nicolaij, K.

PY - 1998

Y1 - 1998

N2 - Background and Purpose: Selective regional sensitivity and delayed damage in cerebral ischemia provide opportunities for directed and late therapy for stroke. Our aim was to characterize the spatial and temporal profile of ischemia-induced changes in cerebral perfusion and tissue status, with the use of noninvasive MRI techniques, to gain more insight in region-specific vulnerability and delayed damage. Methods: Rats underwent 20 minutes of unilateral cerebral hypoxia-ischemia (HI). We performed combined repetitive quantitative diffusion-weighted, T2-weighted, and dynamic susceptibility contrast-enhanced MRI from before HI to 5 hours after HI. Data were correlated with parallel blood oxygenation level-dependent MRI and laser-Doppler flowmetry. Finally, MRI and histology were done 24 and 72 hours after HI. Results: Severe hypoperfusion during HI caused acute reductions of the apparent diffusion coefficient (ADC) of tissue water in the ipsilateral hemisphere. Reperfusion resulted in dynamic perfusion alterations that varied spatially. The ADC recovered completely within 1 hour in the hippocampus (from 0.68 +/- 0.07 to 0.83 +/- 0.09x10 sup -3 mm2/s), cortex (from 0.56 +/- 0.06 to 0.77 +/- 0.07x10 sup -3 mm2/s), and caudate putamen (from 0.58 +/- 0.06 to 0.75 +/- 0.06x10 sup -3 mm2/s) but only partially or not at all in the thalamus (from 0.65 +/- 0.07 to 0.68 +/- 0.12x10 sup -3 mm2/s) and substantia nigra (from 0.80 +/- 0.08 to 0.76 +/- 0.10x10 sup -3 mm2/s). Secondary ADC reductions, accompanied by significant T2 elevations and histological damage, were observed after 24 hours. Initial and secondary ADC decreases were observed invariably in the hippocampus, cortex, and caudate putamen and in approximately 70% of the animals in the thalamus and substantia nigra. Conclusions: Region-specific responses and delayed ischemic damage after transient HI were demonstrated by MRI. Acute reperfusion-induced normalization of ADCs appeared to poorly predict ultimate tissue recovery since secondary, irreversible damage developed eventually.

AB - Background and Purpose: Selective regional sensitivity and delayed damage in cerebral ischemia provide opportunities for directed and late therapy for stroke. Our aim was to characterize the spatial and temporal profile of ischemia-induced changes in cerebral perfusion and tissue status, with the use of noninvasive MRI techniques, to gain more insight in region-specific vulnerability and delayed damage. Methods: Rats underwent 20 minutes of unilateral cerebral hypoxia-ischemia (HI). We performed combined repetitive quantitative diffusion-weighted, T2-weighted, and dynamic susceptibility contrast-enhanced MRI from before HI to 5 hours after HI. Data were correlated with parallel blood oxygenation level-dependent MRI and laser-Doppler flowmetry. Finally, MRI and histology were done 24 and 72 hours after HI. Results: Severe hypoperfusion during HI caused acute reductions of the apparent diffusion coefficient (ADC) of tissue water in the ipsilateral hemisphere. Reperfusion resulted in dynamic perfusion alterations that varied spatially. The ADC recovered completely within 1 hour in the hippocampus (from 0.68 +/- 0.07 to 0.83 +/- 0.09x10 sup -3 mm2/s), cortex (from 0.56 +/- 0.06 to 0.77 +/- 0.07x10 sup -3 mm2/s), and caudate putamen (from 0.58 +/- 0.06 to 0.75 +/- 0.06x10 sup -3 mm2/s) but only partially or not at all in the thalamus (from 0.65 +/- 0.07 to 0.68 +/- 0.12x10 sup -3 mm2/s) and substantia nigra (from 0.80 +/- 0.08 to 0.76 +/- 0.10x10 sup -3 mm2/s). Secondary ADC reductions, accompanied by significant T2 elevations and histological damage, were observed after 24 hours. Initial and secondary ADC decreases were observed invariably in the hippocampus, cortex, and caudate putamen and in approximately 70% of the animals in the thalamus and substantia nigra. Conclusions: Region-specific responses and delayed ischemic damage after transient HI were demonstrated by MRI. Acute reperfusion-induced normalization of ADCs appeared to poorly predict ultimate tissue recovery since secondary, irreversible damage developed eventually.

U2 - 10.1161/01.STR.29.3.695

DO - 10.1161/01.STR.29.3.695

M3 - Article

VL - 29

SP - 695

EP - 704

JO - Stroke : a Journal of Celebral Circulation

JF - Stroke : a Journal of Celebral Circulation

SN - 0039-2499

IS - 3

ER -