... Biochemical Society 2013 cerebral circulation cytochrome P450-4A (CYP4A) 20-hydroxyeicosatetraenoic acid (20-HETE) oxidative stress salt-sensitive vascular function Our laboratory has shown that S–D (Sprague–Dawley) rats develop vascular dysfunction and up-regulate both CYP4A mRNA...

... in diastolic CBFV. Falls in cerebrovascular resistance, therefore, may be offset by rises in CrCP due to hypocapnia, leading to diminished cerebral blood flow during pre-syncope. autoregulation carbon dioxide cerebral circulation Doppler transcranial ultrasonography vasovagal syncope...

... that the cerebral circulation maintains near-constant cerebral blood flow over a wide range of perfusion pressures. It occurs rapidly following a change in perfusion pressure [1]. Several mechanisms have been proposed to explain cerebral autoregulation, including components dependent on chemical mediators, Key...

...I. R. Cameron © 1977 The Biochemical Society and the Medical Research Society 1977 brain blood flow cerebral circulation chemical control chemoreceptors pH potassium Clinical Science and Molecular Medicine (1977) 52, 549-554. EDITORIAL REVIEW The chemical control of the cerebral...

...I. M. James; Lindsay A. MacDonell 1. Ten experiments, each using two dogs, were performed to evaluate the effect of chemoreceptor and baroreceptor activity on the cerebral circulation. 2. The carotid bifurcation areas were vascularly isolated bilaterally and perfused with arterial blood from...