Results 111 to 120 of about 121,835 (341)

Accuracy of direct gradient sensing by cell-surface receptors [PDF]

open access: yesarXiv, 2009
Chemotactic cells of eukaryotic organisms are able to accurately sense shallow chemical concentration gradients using cell-surface receptors. This sensing ability is remarkable as cells must be able to spatially resolve small fractional differences in the numbers of particles randomly arriving at cell-surface receptors by diffusion.
arxiv  

Percutaneous mechanical circulatory support for acute right heart failure: A practical approach

open access: yesESC Heart Failure, EarlyView.
This is an overview of percutaneous mechanical circulatory support options for acute right heart failure, illustrating key clinical scenarios, device types, and principles of tailored device selection based on haemodynamics and underlying pathology. Abstract Acute right heart failure (RHF) represents a critical entity with significant morbidity and ...
Mario Gramegna   +18 more
wiley   +1 more source

Impact of hyperoxia and phenylephrine on cerebral oxygenation: An experimental clinical study

open access: yesActa Anaesthesiologica Scandinavica, Volume 67, Issue 1, Page 57-65, January 2023., 2023
Abstract Background Oxygen supply to the brain is of special importance during intracranial surgery because it may be compromised by intracranial pathology. A high arterial blood pressure (mean arterial pressure above 80 mmHg) and a high arterial oxygen tension (PaO2 above 12 kPa) is therefore often targeted in these patients, when for example ...
Sofie S. Pedersen   +8 more
wiley   +1 more source

Caveolae-Independent Activation of Protein Kinase A in Rat Neonatal Myocytes

open access: yesJournal of Pharmacological Sciences, 2005
Cardiomyocytes express both β1- and β2-adrenergic receptors, and these receptors play a differential role in chronotropic and inotropic effects of the heart. Caveolae are known as an important regulator of G-protein-coupled receptor signaling.
Masashi Fukutomi   +4 more
doaj  

Aripiprazole-induced priapism

open access: yesIndustrial Psychiatry Journal, 2016
Priapism is a urologic emergency representing a true disorder of penile erection that persists beyond or is unrelated to sexual interest or stimulation.
Satya K Trivedi   +2 more
doaj   +1 more source

Current and novel biomarkers in cardiogenic shock

open access: yesEuropean Journal of Heart Failure, EarlyView.
A summary of current and novel biomarkers and their potential stages of release in cardiogenic shock. The diagram illustrates the proposed release of the biomarkers during the different stages of cardiogenic shock: progression from cardiac dysfunction/stress, through to inflammation and end‐organ dysfunction.
Victor Galusko   +5 more
wiley   +1 more source

Toward staging differentiation for posttraumatic stress disorder treatment

open access: yesActa Psychiatrica Scandinavica, Volume 147, Issue 1, Page 65-80, January 2023., 2023
Abstract Objectives Several medical and psychiatric disorders have stage‐based treatment decision‐making methods. However, international treatment guidelines for posttraumatic stress disorder (PTSD) fail to give specific treatment recommendations based on chronicity or stage of the disorder.
Mirjam J. Nijdam   +2 more
wiley   +1 more source

Chemical sensing by cell-surface chemoreceptor arrays: the roles of receptor cooperativity and adaptation [PDF]

open access: yesarXiv, 2012
Most sensory cells use cross-membrane chemoreceptors to detect chemical signals in the environment. The biochemical properties and spatial organization of chemoreceptors play important roles in achieving and maintaining sensitivity and accuracy of chemical sensing.
arxiv  

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