Abstract
Rat transient middle cerebral artery occlusion (tMCAO) model is one of the most commonly used animal models in ischemic stroke studies. In the model, increasing safety and efficacy of therapeutic agent administration, such as stem cells and drugs directly to the ischemic brain using the internal carotid artery (ICA) is essential, because using the common carotid artery (CCA) for injection can close CCA completely and cause many complications after tMCAO surgery. Also, the pterygopalatine artery (PPA) is an arterial branch of the ICA that supplies blood circulation of the external part of the brain and removing the blood circulation of the PPA is required for more complete induction of ischemia to the brain. Herein, we present the insertion of intra-arterial catheter in the ICA via the external carotid artery (ECA) after the PPA in rats subjected to tMCAO surgery.
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