over the other depends on the parameter measured (eg, heart rate, blood pressure) and the
timing of the observations in relation to the stressor (eg, early events tend to be dominated …

Classical physiology teaches that vagal post-ganglionic nerves modulate the heart via
acetylcholine acting at muscarinic receptors, whilst it is accepted that vagus nerve …

To investigate the distribution of autonomic nerves in the human heart, six autopsied hearts
without cardiovascular disease were studied by a histochemical method for …

Because sympathetic fibers travel in the subepicardium and generally follow the coronary
arteries in a basal to apical course, we tested the hypothesis that transmural myocardial …

Methods In vitro techniques.[†231] sodiumiodide'was prepared by the 1271 (p. Sn) â€
23Xemethod; 1231prepared in this manner contained 0.12% ±0.25% 1251and possibly a …

Transmural myocardial infarction in dogs produces denervation of sympathetic nerves in
viable myocardium apical to the infarct that may be arrhythmogenic. It is unknown whether …

Six dogs were continuously infused with subhypertensive doses of norepinephrine (NE) for
periods of 6 to 63 weeks. In these dogs, mean left ventricular weight, 67.3±2.5 gm/M 2 …

Objective. The aim of this study was to determine whether patients with ventricular
arrhythmias in the absence of coronary artery disease also have abnormalities in …

Denervation supersensitivity was demonstrated in anesthetized dogs 5 to 10 days after
transmural myocardial infarction produced by latex embolization of a diagonal branch of the …

BACKGROUND The transmural distribution of fiber angles and the extent of shortening
among obliquely oriented fibers are likely to be major determinants of the twisting motion …