Results 41 to 50 of about 1,546,717 (359)
European Journal of Medical ResearchBackground Patent foramen ovale (PFO) is a remnant of normal fetal anatomy and is present in approximately 25% of adults. PFO mainly causes right-to-left shunt (RLS). Clinical identification of RLS is crucial for certain patients, particularly those with
Lifei Tian +3 more
doaj +1 more source
High-fat diet induces protein kinase A and G-protein receptor kinase phosphorylation of β2 -adrenergic receptor and impairs cardiac adrenergic reserve in animal hearts. [PDF]
, 2017 Key pointsPatients with diabetes show a blunted cardiac inotropic response to β-adrenergic stimulation despite normal cardiac contractile reserve. Acute insulin stimulation impairs β-adrenergically induced contractile function in isolated cardiomyocytes ...
Chiamvimonvat, Nipavan +8 more
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Cardiac function in hyperthyroidism [PDF]
Clinical Cardiology, 1984 AbstractIt is accepted that thyroid hormones, thyrox‐ine and tri‐iodothyronine have direct inotropic and chronotropic effects on the heart. However, the mechanisms of manifestations are still uncertain. The following discusses and evaluates some of the theories regarding the interaction of these hormones with cardiac function.
A S, Iskandrian +2 more
openaire +2 more sources
Cardiac Rehabilitation and Endothelial Function [PDF]
Journal of Clinical Medicine, 2020 Endothelial dysfunction is an early abnormality in the process of atherosclerosis and cardiovascular disease and has been associated with worse clinical outcome. Cardiac rehabilitation (CR) has been reported to be helpful to reduce cardiovascular events in various types of cardiac disease, but the mechanisms of its beneficial effects remain only ...
Lanza, Gaetano Antonio +6 more
openaire +4 more sources
Hematopoietic (stem) cells—The elixir of life?
FEBS Letters, EarlyView.The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo +4 more
wiley +1 more source
Blood PressureObjective This study investigates the relationship between hypertension, dysregulation of the autonomic nervous system, heart rate variability (HRV), and chronic inflammation.Methods We analysed a cohort of 50 hypertensive patients treated at the ...
Bo He, Dapeng Ji, Bo Zhang
doaj +1 more source
A coupled mitral valve -- left ventricle model with fluid-structure interaction
, 2017 Understanding the interaction between the valves and walls of the heart is important in assessing and subsequently treating heart dysfunction. With advancements in cardiac imaging, nonlinear mechanics and computational techniques, it is now possible to ...
Brown, André EX +11 more
core +3 more sources
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
Cell Communication and SignalingBackground Diabetic angiogenesis is closely associated with disabilities and death caused by diabetic microvascular complications. Advanced glycation end products (AGEs) are abnormally accumulated in diabetic patients and are a key pathogenic factor for ...
Zhenfeng Chen +13 more
doaj +1 more source
ADENYLYL CYCLASE TYPE 9: REGULATION AND CARDIAC FUNCTION [PDF]
, 2018 Abnormalities in cardiac stress signaling underlie a number of cardiovascular diseases (e.g. arrhythmias and heart failure). Cardiac stress signaling pathways normally integrate signals from the sympathetic nervous system to promote efficient contraction
Baldwin, Tanya A., Baldwin, Tanya A.
core +1 more source