Results 31 to 40 of about 1,332 (157)
Emergence of Mechano-Sensitive Contraction Autoregulation in Cardiomyocytes
The heart has two intrinsic mechanisms to enhance contractile strength that compensate for increased mechanical load to help maintain cardiac output. When vascular resistance increases the ventricular chamber initially expands causing an immediate length-
Leighton Izu+8 more
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Vagolytic atropine attenuates cerebral vasodilation response during acute orthostatic hypotension [PDF]
BackgroundAtropine is an anticholinergic drug which is commonly used in clinical practice. The effect of parasympathetic block with atropine on dynamic cerebrovascular regulation remains unclear.
Woo-Jong Choi+5 more
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IntroductionAcute traumatic spinal cord injury is routinely managed by surgical decompression and instrumentation of the spine. Guidelines also suggest elevating mean arterial pressure to 85 mmHg to mitigate secondary injury.
Perry Dhaliwal+8 more
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Background: Cerebral autoregulation actively maintains cerebral blood flow over a range of MAPs. During general anaesthesia, this mechanism may not compensate for reductions in MAP leading to brain hypoperfusion.
Elsa Manquat+10 more
doaj
Identification of Three Type II Toxin-Antitoxin Systems in Streptococcus suis Serotype 2
Type II toxin-antitoxin (TA) systems are highly prevalent in bacterial genomes and have been extensively studied. These modules involve in the formation of persistence cells, the biofilm formation, and stress resistance, which might play key roles in ...
Jiali Xu+9 more
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Cultural-Historical Activity Theory in the Framework of the “Functional Paradigm”
The aim of the paper is to highlight the peculiarity of the present state of the Cultural-historical activity theory (CHAT) in psychology, as compared to previous periods of its development in the general context of theory development in psychology.
Leontiev D.A.
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Differentiating Dynamic Cerebral Autoregulation Across Vascular Territories
Objective: Transcranial Doppler is commonly used to calculate cerebral autoregulation, but measurements are typically restricted to a single cerebral artery.
Navpreet Reehal+6 more
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Iron-Dependent Transcription of the Regulatory Gene ros of Agrobacterium radiobacter
Transcription of the regulatory gene ros of Agrobacterium radiobacter requires growth in the presence of Fe although this regulation was not mediated by ros itself.
H. Hussain, A. W. B. Johnston
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Objective: Cerebral autoregulation limits the variability of cerebral blood flow (CBF) in the presence of systemic arterial blood pressure (ABP) changes.
Thao Pham+8 more
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Autoregulation of Hepatic Circulation
(1) The pressure-flow relations in both the hepatic artery and the portal vein system were investigated in a total of 13 dog livers, perfused with the homologous blood by a pump oxygenator. In addition, the interaction between the hepatic artery and the portal vein system was also studied.
Ichiro Murai+4 more
openaire +4 more sources