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Prospects of X-ray microanalysis in the study of pathophysiology of myocardial contraction
X-ray microanalysis was used to compare chemically untreated cryosections of quick-frozen myocardial tissue in “caffeine contracture” with cryosections of normal muscle. Our goal was to find out if it is possi...
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Article
Prospects of X-ray microanalysis in the study of pathophysiology of myocardial contraction
X-ray microanalysis was used to compare chemically untreated cryosections of quick-frozen myocardial tissue in “caffeine contracture” with cryosections of normal muscle. Our goal was to find out if it is possi...
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Article
Electron probe x-ray microanalysis and cryoultramicrotomy of unstained myocardial sarcoplasmic reticulum, in situ and fragmented
Myocardial sarcoplasmic reticulum of cats in situ and fragmented sarcoplasmic reticulum (FSR) were analysed using X-ray microanalysis, cryoultramicrotomy and scanning transmission electron microscopy. 2 types ...
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Article
Noncompetitive catecholamine-antagonism of acetylcholine in the sympathectomized mammalian ventricular myocardium
The effect of the vagus transmitter on the ventricular myocardium varies qualitatively as well as quantitatively in different warm-blooded species. In the ventricular myocardium of birds (duck, hen), a part of...
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Article
Sympathetic-parasympathetic interactions on the ventricular myocardium: possible role of cyclic nucleotides
Vagal effects on the mammalian ventricular myocardium vary greatly in different species and depend on sympathetic influences. After chemical sympathectomy it can be demonstrated that acetylcholine antagonizes ...