Impact of Heme and Heme Degradation Products on Vascular Diameter in Mouse Visual Cortex [Stroke]

Conclusions
We identified individual components of the oxidative bilirubin degradation that led to vasoconstriction of cerebral arterioles. The vasoconstrictive effect of Z-BOX A and Z-BOX B was mediated by BKCa channel activity that might represent a signaling pathway in the occurrence of delayed cerebral vasospasm in subarachnoid hemorrhage patients.

Source: JAHA:Journal of the American Heart Association - August 28, 2014 Category: Cardiology Authors: Joerk, A., Seidel, R. A., Walter, S. G., Wiegand, A., Kahnes, M., Klopfleisch, M., Kirmse, K., Pohnert, G., Westerhausen, M., Witte, O. W., Holthoff, K. Tags: Stroke Source Type: research