We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
ATP Transport in Saccular Cerebral Aneurysms at Arterial Bends.
- Authors
IMAI, YOHSUKE; SATO, KODAI; ISHIKAWA, TAKUJI; COMERFORD, ANDREW; DAVID, TIM; YAMAGUCHI, TAKAMI
- Abstract
ATP acts as an extracellular signaling molecule in purinergic signaling that regulates vascular tone. ATP binds purinergic P2 nucleotide receptors on endothelial cells. Understanding the mass transport of ATP to endothelial cells by blood flow is thus important to predict functional changes in aneurysmal walls. While some clinical observations indicate a difference of wall pathology between ruptured and unruptured aneurysms, no study has focused on the mass transport in aneurysms. We investigated the characteristics of ATP concentration at aneurysmal wall using a numerical model of ATP transport in aneurysms formed at arterial bends. The magnitude of ATP concentration at the aneurysmal wall was significantly smaller than that at the arterial wall. In particular, significantly low concentration was predicted at the proximal side of the aneurysmal sac. A strong correlation was revealed between the inflow flux at the aneurysmal neck and the resultant concentration at the aneurysmal wall.
- Subjects
ANEURYSMS; MASS transfer; INTRACRANIAL aneurysms; BLOOD flow; ADENOSINE triphosphate
- Publication
Annals of Biomedical Engineering, 2010, Vol 38, Issue 3, p927
- ISSN
0090-6964
- Publication type
Article
- DOI
10.1007/s10439-009-9864-1