Human cord blood CD 34 plus cells and behavioral recovery following focal cerebral ischemia in rats

• Autorzy: Nystedt J. , Makinen S. , Laine J. , Jolkkonen J.
• Języki publikacji: EN

Abstrakty

EN

The present study investigated effects of human umbilical cord blood derived CD34+ cells on sensorimotor, cognitive, and histological outcome in rats following focal cerebral ischemia. Halothane anesthetized adult male Wistar rats were subjected to transient or permanent occlusion of the middle cerebral artery (MCAO) followed by intravenous administration of CD34+ cells (5 × 105 or 2 × 106) after 24 h recovery. The beam-walking and cylinder tests were used to assess sensorimotor function, and Morris water-maze examined cognitive performance during a 25 day follow-up period. Subsequently, rats were perfused for measurement of infarct volumes and detection of CD34+ cells in the brain by immunohistochemistry (MAB1281). MCAO rats showed minor or no spontaneous recovery in sensorimotor function during the follow-up. The recovery profile was similar in MCAO controls and in MCAO rats that received CD34+ cells, although CD34+ cells seemed to improve the use of impaired forelimb. There was also a trend toward improved water-maze performance by CD34+ cells in transient MCAO rats. Infarct volumes assessed from Nissl-stained sections on postoperative day 25 did not differ between the experimental groups. MAB1281-positive cells were not detected in the brain of MCAO rats that received CD34+ cells. The present study suggests that CD34+ cells might improve functional outcome in MCAO rats after systemic administration, but do not significantly provide neuroprotection.

• Wydawca: -
• Czasopismo: Acta Neurobiologiae Experimentalis
• Rocznik: 2006
• Tom: 66
• Numer: 4
• Opis fizyczny: p.293-300,fig.,ref.

Twórcy

autor

Nystedt J.

• Research of Development, Finnish Red Cross Blood Service, Kivihaantie 7, 00310 Helsinki, Finland

autor

Makinen S.

• Department of Neuroscience and Neurology, University of Kuopio, Yliopistonranta 1C, 70211, Kuopio, Finland

autor

Laine J.

• Research of Development, Finnish Red Cross Blood Service, Kivihaantie 7, 00310 Helsinki, Finland

autor

Jolkkonen J.

• Department of Neuroscience and Neurology, University of Kuopio, Yliopistonranta 1C, 70211, Kuopio, Finland

Uwagi

PL

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