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Stroke, Vol 15, 1049-1056, Copyright © 1984 by American Heart Association

ARTICLES

Autoradiographic detections of 111indium-labeled platelets in brain tissue sections

TP Obrenovitch, KK Kumaroo and JM Hallenbeck

Various techniques for detection of blood platelets in tissue section were evaluated in an incremental air embolism model of ischemia in order to further investigate the accumulation of platelets in brains subjected to cell-damaging ischemia. The experimental animals were dogs anesthetized with alpha-chloralose. A new autoradiographic technique was devised that allows precise localization of 111Indium-labeled platelets in brain sections. The technique is described in detail along with some effects of the label on platelet function and behavior. The technique can be performed in conjunction with 14C-iodoantipyrine autoradiographic measurement of blood flow without causing mutual interference or other forms of interaction. This permits the simultaneous investigation of local blood flow and deposition of platelets.

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