Salvador Castaneda-Vega, Sandra Beer-Hammer, Veronika Leiss, Hanna Napieczyńska, Marta Vuozzo, Andreas M Schmid, Hang Zeng, Yi He, Ursula Kohlhofer, Irene Gonzalez-Menendez, Leticia Quintanilla-Martinez, Johann-Martin Hempel, Maik Gollasch, Xin Yu, Bernd J Pichler, Bernd Nürnberg
Cerebral hypoperfusion and vascular dysfunction are closely related to common risk factors for ischemic stroke such as hypertension, dyslipidemia, diabetes, and smoking. The role of inhibitory G protein-dependent receptor (Gi PCR) signaling in regulating cerebrovascular functions remains largely elusive. We examined the importance of Gi PCR signaling in cerebral blood flow (CBF) and its stability after sudden interruption using various in vivo high-resolution magnetic resonance imaging techniques. To this end, we induced a functional knockout of Gi PCR signaling in the brain vasculature by injection of pertussis toxin (PTX)...
September 8, 2022: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging