Xenon neuroprotection in experimental stroke: interactions with hypothermia and intracerebral hemorrhage.

dc.contributor.author

Sheng, Siyuan P

dc.contributor.author

Lei, Beilei

dc.contributor.author

James, Michael L

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Lascola, Christopher D

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Venkatraman, Talaignair N

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Jung, Jin Yong

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Maze, Mervyn

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Franks, Nicholas P

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Pearlstein, Robert D

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Sheng, Huaxin

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Warner, David S

dc.date.accessioned

2021-06-01T14:13:41Z

dc.date.available

2021-06-01T14:13:41Z

dc.date.issued

2012-12

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2021-06-01T14:13:41Z

dc.description.abstract

Background

Xenon has been proven to be neuroprotective in experimental brain injury. The authors hypothesized that xenon would improve outcome from focal cerebral ischemia with a delayed treatment onset and prolonged recovery interval.

Methods

Rats were subjected to 70 min temporary focal ischemia. Ninety minutes later, rats were treated with 0, 15, 30, or 45% Xe for 20 h or 0 or 30% Xe for 8, 20, or 44 h. Outcome was measured after 7 days. In another experiment, after ischemia, rats were maintained at 37.5° or 36.0°C for 20 h with or without 30% Xe. Outcome was assessed 28 days later. Finally, mice were subjected to intracerebral hemorrhage with or without 30% Xe for 20 h. Brain water content, hematoma volume, rotarod function, and microglial activation were measured.

Results

Cerebral infarct sizes (mean±SD) for 0, 15, 30, and 45% Xe were 212±27, 176±55, 160±32, and 198±54 mm, respectively (P=0.023). Neurologic scores (median±interquartile range) followed a similar pattern (P=0.002). Infarct size did not vary with treatment duration, but neurologic score improved (P=0.002) at all xenon exposure durations (8, 20, and 44 h). Postischemic treatment with either 30% Xe or subtherapeutic hypothermia (36°C) had no effect on 28-day outcome. Combination of these interventions provided long-term benefit. Xenon improved intracerebral hemorrhage outcome measures.

Conclusion

Xenon improved focal ischemic outcome at 7, but not 28 days postischemia. Xenon combined with subtherapeutic hypothermia produced sustained recovery benefit. Xenon improved intracerebral hemorrhage outcome. Xenon may have potential for clinical stroke therapy under carefully defined conditions.
dc.identifier.issn

0003-3022

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1528-1175

dc.identifier.uri

https://hdl.handle.net/10161/23286

dc.language

eng

dc.publisher

Ovid Technologies (Wolters Kluwer Health)

dc.relation.ispartof

Anesthesiology

dc.relation.isversionof

10.1097/aln.0b013e3182746b81

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Animals

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Mice, Inbred C57BL

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Mice

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Rats

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Rats, Wistar

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Cerebral Hemorrhage

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Disease Models, Animal

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Xenon

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Neuroprotective Agents

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Hypothermia, Induced

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Pilot Projects

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Random Allocation

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Male

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Stroke

dc.title

Xenon neuroprotection in experimental stroke: interactions with hypothermia and intracerebral hemorrhage.

dc.type

Journal article

duke.contributor.orcid

James, Michael L|0000-0002-8715-5210

duke.contributor.orcid

Lascola, Christopher D|0000-0002-8031-782X

duke.contributor.orcid

Sheng, Huaxin|0000-0002-4325-2940

pubs.begin-page

1262

pubs.end-page

1275

pubs.issue

6

pubs.organisational-group

School of Medicine

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Duke Clinical Research Institute

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Neurology, Neurocritical Care

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Anesthesiology, Neuroanesthesia

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Duke

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Institutes and Centers

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Neurology

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Clinical Science Departments

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Anesthesiology

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Duke-UNC Center for Brain Imaging and Analysis

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Neurobiology

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Radiology, Neuroradiology

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Basic Science Departments

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Radiology

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Neurosurgery

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Duke Institute for Brain Sciences

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Surgery

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University Institutes and Centers

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Institutes and Provost's Academic Units

pubs.publication-status

Published

pubs.volume

117

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