Role of cerebral blood flow in extreme breath holding
نویسندگان
چکیده
منابع مشابه
Role of cerebral blood flow in extreme breath holding
The role of cerebral blood flow (CBF) on a maximal breath-hold (BH) in ultra-elite divers was examined. Divers (n = 7) performed one control BH, and one BH following oral administration of the non-selective cyclooxygenase inhibitor indomethacin (1.2 mg/kg). Arterial blood gases and CBF were measured prior to (baseline), and at BH termination. Compared to control, indomethacin reduced baseline C...
متن کاملCerebral blood flow-related signal changes during breath-holding.
BACKGROUND AND PURPOSE In the past, functional MR imaging techniques have been used successfully to determine cerebrovascular reactivity (CVR) to various stimuli, complementing the arsenal of functional brain investigations feasible with MR imaging. While previous studies have focused on blood oxygenation changes under vasodilatory stress, the aim of this study was to assess regional cerebral b...
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چکیده ندارد.
15 صفحه اولCEREBRAL BLOOD FLOW REGULATION IN ANESTHETIZED MORPHINE DEPENDENT RATS: THE ROLE OF THE ADENOSINE SYSTEM
Adenosine has many of the characteristics of a regulator of cerebral blood flow and adenosine receptors change in morphine dependency. In this study the changes in adenosine receptors' responsiveness of pial vessels in the hind limb area of the sensory cortex were evaluated in morphine dependent rats (MDR) using the laser Doppler flowmetry technique. Adult male Sprague Dawley rats (250-350 ...
متن کاملCerebral blood volume changes in arterial and post-arterial compartments and their relationship with cerebral blood flow alteration during brief breath-holding and visual stimulation in human brain
Introduction: Arterial and post-arterial cerebral blood volumes (CBV) have different physiological and functional roles in the brain. Arterial vessels are the major active regulator of cerebral blood flow (CBF), while post-arterial (capillary, venous) vessels mostly dilate passively to accommodate changes in CBF. A change in CBV is one of the primary factors affecting the stimulus evoked BOLD s...
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ژورنال
عنوان ژورنال: Translational Neuroscience
سال: 2016
ISSN: 2081-6936
DOI: 10.1515/tnsci-2016-0003