Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2005-6-6
pubmed:abstractText
In an attempt to establish a thrombotic middle cerebral artery (MCA) occlusion model using cynomolgus monkeys, we measured the blood flow in the main MCA tract and cerebral cortex, brain damage, and neurological deficits, and compared them with those of mechanical MCA occlusion model. Thrombotic occlusion was induced photochemically by green light application on the MCA following rose bengal treatment; mechanical occlusion was induced by MCA clipping for 3h. Patency of the main MCA tract showed two patterns in the thrombotic model: permanent occlusion or cyclical flow reduction (CFR). Regional cerebral blood flow (rCBF) decreased during occlusion followed by post-ischemic hyperperfusion in the clipping model, whereas rCBF reduction expanded time-dependently in the thrombotic occlusion model. Brain infarction and neurological scores in the thrombotic occlusion model were significantly larger than those in the clipping occlusion model. In histological assessment, microthrombi containing myeloperoxidase- and fibrinogen-positive cells were observed in the cortex following the thrombotic but not clipping occlusion. These results collectively suggest that this thrombotic MCA occlusion model, because it shows impairment of cerebral microcirculation, could provide a vital platform for understanding progressive ischemia as well as for evaluating potential therapeutic drugs.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0165-0270
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
146
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
106-15
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15935227-Animals, pubmed-meshheading:15935227-Biological Markers, pubmed-meshheading:15935227-Cerebral Cortex, pubmed-meshheading:15935227-Cerebral Infarction, pubmed-meshheading:15935227-Cerebrovascular Circulation, pubmed-meshheading:15935227-Cerebrovascular Disorders, pubmed-meshheading:15935227-Disease Models, Animal, pubmed-meshheading:15935227-Disease Progression, pubmed-meshheading:15935227-Fibrinogen, pubmed-meshheading:15935227-Infarction, Middle Cerebral Artery, pubmed-meshheading:15935227-Intracranial Thrombosis, pubmed-meshheading:15935227-Macaca fascicularis, pubmed-meshheading:15935227-Male, pubmed-meshheading:15935227-Middle Cerebral Artery, pubmed-meshheading:15935227-Peroxidase, pubmed-meshheading:15935227-Photic Stimulation, pubmed-meshheading:15935227-Positron-Emission Tomography, pubmed-meshheading:15935227-Rose Bengal, pubmed-meshheading:15935227-Surgical Instruments
pubmed:year
2005
pubmed:articleTitle
Characterization of a novel thrombotic middle cerebral artery occlusion model in monkeys that exhibits progressive hypoperfusion and robust cortical infarction.
pubmed:affiliation
Department of Neuroscience, Medicinal Biology Research Laboratories, Fujisawa Pharmaceutical Co. Ltd., 2-1-6 Kashima, Yodogawa-Ku, Osaka 532-8514, Japan. masashi_maeda@po.fujisawa.co.jp
pubmed:publicationType
Journal Article, Comparative Study