Vessel painting technique for visualizing the cerebral vascular architecture of the mouse.

Vessel painting is a simple, cost-effective way to visualize the vascular architecture of the mouse brain and other organs. DiI is a lipophilic carbocyanine dye that binds to lipid membranes and is commonly used for tract tracing in the brain. After perfusion with PBS to remove the blood, perfusion with a special DiI solution allows direct staining of the vasculature.

Protein kinase C epsilon activation delays neuronal depolarization during cardiac arrest in the euthermic arctic ground squirrel.

During the pre-hibernation season, arctic ground squirrels (AGS) can tolerate 8 min of asphyxial cardiac arrest (CA) without detectable brain pathology. Better understanding of the mechanisms regulating innate ischemia tolerance in AGS has the potential to facilitate the development of novel prophylactic agents to induce ischemic tolerance in patients at risk of stroke or CA. We hypothesized that neuroprotection in AGS involves robust maintenance of ion homeostasis similar to anoxia-tolerant turtles.