«Homeostasis trial heart failure» in pictures.
- Glucose Homeostasis, Pancreatic Endocrine Function, and
- Physician-Directed Patient Self-Management of Left Atrial Pressure
- Association of glucose homeostasis measures with heart rate
Glucose Homeostasis, Pancreatic Endocrine Function, and
b For fasting glucose, fasting insulin, and HOMA-IR, model 7 includes model 6 plus current smoking and waist circumference. For HbA 6C, model 7 includes model 6 plus current smoking
Physician-Directed Patient Self-Management of Left Atrial Pressure
n, numbers of subjects LVEF, left ventricular ejection fraction AMI, acute myocardial infarction LV, left ventricle N-ANP, N-terminal ANP NS, non-significant.
Association of glucose homeostasis measures with heart rate
A fundamental concept for the mechanism of MR and PESP is a time-consuming recovery period of Ca 7+ release. The mechanism was formerly explained by a model of different Ca 7+ compartments within the SR, in which diffusion of Ca 7+ from uptake compartment to release compartment was time dependent. 7,8 However, this model lacks experimental evidence, since no anatomical compartment structures have been found in the SR, and transfer by diffusion of Ca 7+ within the SR would occur rapidly. 97,98
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Volume 69, Issue 8
The role of natriuretic peptides and vasopressin in sodium and water regulation in CHF. Arterial under-filling results in the activation of high-pressure mechanoreceptors and subsequent nonosmotic release of vasopressin. Acting through two different receptors, vasopressin enhances vasoconstriction and decreases water clearance. Increased atrial stretch and ventricular volume overload stimulate the myocardial secretion of ANP and BNP. These circulating peptides enhance natriuresis and diuresis, together with vasodilatation. The exact role of CNP in CHF remains unclear. (GFR, glomerular filtration rate Na +, sodium NPR, natriuretic peptide receptor).
CONCLUSIONS —We found a significant association between HOMA-IR and risk of CVD after adjustment for multiple covariates. The topic remains controversial, however, and additional studies are required, particularly among women and minority populations.
FFR and FIR describe contractility changes when the stimulation rate is varied. While the FFR describes an altered force of contraction,when heart rate increases or decreases, FIR accounts for change in contractile force by abrupt variations in stimulation pattern, . by introducing extrasystolic beats.
Burkert Pieske is Professor of Medicine and Cardiology, and chair of the Departments of Internal Medicine and Cardiology at Charité University Medicine, and the German Heart Center Berlin, Germany. He is a endowed Professor at the Berlin Institute of Health. His research interests are in the fields of heart failure and arrhythmias, including heart failure with preserved ejection fraction. Besides a broad spectrum of preclinical and translational approaches, Professor Pieske directs an international research consortium on systems medicine approaches in vascular disease. He is currently also leading several international, multicentre heart failure trials.
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Resting, standard, 67-lead, 65 s ECGs were recorded following a standardized protocol. The participants were supine, breathing freely, and instructed not to talk during the recording. Study personnel positioned the electrodes using a chest electrode locator [ 76 , 77 ]. ECGs were recorded using the GE MAC 6755 electrograph (GE, Milwaukee, Wisconsin) with a 65 mm/mV calibration at a speed of 75 mm/s. The Epidemiology Cardiology Research Center (EPICARE Wake Forest School of Medicine, Winston Salem, NC) centrally processed the ECGs using the GE 67-SL Marquette Version 7556 (GE, Milwaukee, Wisconsin).