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Jan
8
revised Does transplanted heart have full sympaticus without medication?
notification of overloading to readers
Jan
8
comment Does transplanted heart have full sympaticus without medication?
In your definitions, is there sympathetic supply to heart? I tend to overload terms and say that there is both S and PS supply to heart through endocrine system.
Jan
7
comment Does transplanted heart have full sympaticus without medication?
There is vagus nerve to the heart so I think action potential is generated through the release of acetylcholine in heart. There is sympathetic trunk to the heart similarly neuronal. What do you mean that there are no nerves "to" the heart? I mean by this that there is the neuronal component combined with the endocrine system + receptors i.e. something to heart.
Jan
6
comment Does transplanted heart have full sympaticus without medication?
Assume adreniline/stimulates tissue. There are alpha and beta receptors. How is the sympathetic action potential generated? From receptor to periphery and to heart? Can you see this action potential generated by adrenaline and noradrenaline clearly in some channel of ECG? Probably, II or MLII. I would like to find the channel and situation where action potential from sympathetic trunk is not visible.
Jan
6
comment Does transplanted heart have full sympaticus without medication?
Excellent answer! So the type of sympathetic stimuli is from adrenal medulla in transplanted heart. In normal heart, two types - from the former and from sympathetic trunk.
Dec
28
comment Is there an 'anti-virus'?
+1 for new idea. Can you please explore this topic a little more in relation to anti-virus. Now, your answer seems to be like from Wikipedia mainly.
Dec
28
comment Is there an 'anti-virus'?
Here one publication with good references to possible receptors plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0094923 We do not have currently enough tools to specify all the receptors of Sputnik virophage, I think. Only the tail protein has been used there.
Dec
27
comment How is Calcium regulated in myocardic AP and plateau phase?
@Chris can you please make edits directly to body. I do not undestand to whoch part your comment applyes.
Dec
27
comment Why don't we see turbulence in the aorta even in normal situations?
Yes, there is turbulence! Please, include better studies and MRI so I can review them. I am very interested in turbulence in many environments. The catheter study is mosthe beneficial in this research. MRI can describe some fluid dynamics.
Dec
27
comment Why don't we see turbulence in the aorta even in normal situations?
@anongoodnurse thank you for correction! Please, say specifically where your disagreements. Yes, some turbulence. Yes, to periphery but for creation of turbulence it does not matter how pressure difference is created. Reflections matter here.
Dec
27
revised Why don't we see turbulence in the aorta even in normal situations?
thank you anon good nurse!
Dec
27
comment Is there an 'anti-virus'?
Can Sputnik virus attack only some viruses? Which receptors does it have?
Dec
27
comment Advantage of opponent color?
Can you, please, say which material you are reading because there are so much different approaches on this by different authors.
Dec
27
answered Are we more/less resistant to infectious diseases during an allergic reaction?
Dec
27
revised Why don't we see turbulence in the aorta even in normal situations?
anongoodnurse's answer and publications review
Dec
27
comment Why don't we see turbulence in the aorta even in normal situations?
Third publication. Linear model for nonlinear situation. I am not convinced by their Mesh selection. Only in Mechanics' journal. Very far from Medical publication or from Mathematical. Not rigorous.
Dec
27
comment Why don't we see turbulence in the aorta even in normal situations?
I like the second publication. High velocity and turbulence and nonlinear streamlines in the ascending aorta in normal situation. In other words, high magnitude of the strain rate tensor along aortic curvatures. So we need nonlinear distribution of at least 4D (later 6D) to quantify the amount and degree of nonlinear processes in turbulences.
Dec
27
comment Why don't we see turbulence in the aorta even in normal situations?
I do not like the first publication because it is using Reynold's number that is desigined originally for laminar flow. Problem with viscosity etc. There are better ways to the same thing and consider explicitly the creation of turbulence. It does much simplifications there. Fitting the equation to the physiological ranges of some set of data is bad procedure.
Dec
27
comment Why don't we see turbulence in the aorta even in normal situations?
@gautampw Yes, you are right. The heart sound IV is not relevant here. I consider here a situation when some blood bounces off the atrial valve only so possibly creating some heart sound.
Dec
27
revised Why don't we see turbulence in the aorta even in normal situations?
correct heart sound, considering feedback