Hi taurusthree,
Your stack looks good! But I assume you are skipping the omega-3/CLA portion. That's fine as long as you are improving. I am glad to hear about your results. I also like that you are customizing dosage based on your personal vitamin deficiency. Your post will be helpful for others who may have similar vitamin deficiencies and medical test results.
I thought your explanation of the alpha1-receptor overexpression is brilliantly stated. When I first read your post, I did not know the exact mechanism for how the a1A-adrenergic receptor would become overexpressed. I only knew what the its properties were and the similarities with what is known about POIS. You actually brought up some ideas that I did not think of. For example, your explanation could be similar/related to
Hyperadrenergic POTS. Also, the connection you made to hEDS makes a lot of sense. I will try to explain what I think you are asking/saying. But please add comments and corrections so that I understand fully what you are proposing. I will start from the perspective of POIS, but I assume the following principles could also be applied to Hyperadrenergic POTS, intense excersise or intense fear.
b. The connection between MCAS, POTS and hEDS. So one of the theories is that hEDS-ers have elastic vessels, which don't hold up during the orthostatic stress induced higher heartbeat (which elevates further, which is the manifestation of POTS).
During sexual activity vasodilation increases (for example: erection and
sex flush). Epinephrine (adrenaline) and norepinephrine (noradrenaline) is released during orgasm to produce ejaculation (
Ref).
This noradrenaline release also causes Increased Heart Rate (
IHR) similar to tachycardia. This is a normal part of sex physiology.
If the total blood volume in the body is constant, an increased heart rate (
IHR) means that the heart is pumping with more force and producing larger pulses in blood pressure.
This IHR puts greater stress on dilated blood vessels than it does on constricted blood vessels. From the cylinder surface-tension equation (
Laplace's Law):
T=
P*
R, increasing the radius
R also increases the surface tension stress
T. So for a given blood pressure
P,
vasodilation (larger radius R) produces a higher surface tension stress (
T) on the the blood vessel wall than
vasoconstriction (smaller radius R).
This increased tension can cause shear stress injury to the vasodilated blood vessels called balloon injury.Can't this over time potentially cause an overexpression of alpha1 receptors, so the vessels will be supported as much as possible?
As you have stated, vasoconstriction supports and protects the vessels. In response to
ballon injury, norepinephrine-induced vasoconstriction protects vessels from undergoing more balloon injury than has already occurred.
This may lead to alpha1-receptor over expression (
Angiotensin II induces transcription and expression of alpha 1-adrenergic receptors in vascular smooth muscle cells, ZW Hu, et. al., 1994), This overexpression causes vasoconstriction (reducing the vessel radius
R) which results in reduced surface
Tension stress (
T =
P*
R, Laplace's Law) at the location of injury.
And this in turn may induce inflammation from slightest elevations of noradernaline - MCAS-ish symptoms.
One side-effect of injury-induced alpha1-receptor over-expression can be chronic inflammation:
"Under normal conditions, the sympathetic neurotransmitter noradrenaline inhibits the production and release of pro-inflammatory cytokines. However, after peripheral nerve and tissue injury, pro-inflammatory cytokines appear to induce the expression of the alpha1A-adrenoceptor subtype on immune cells and perhaps also on other cells in the injured tissue. In turn, noradrenaline may act on up-regulated alpha1-adrenoceptors to increase the production of the pro-inflammatory cytokine...These mechanisms could contribute to the development of sympathetically maintained pain in conditions such as post-herpetic neuralgia, cutaneous neuromas, amputation stump pain and complex regional pain syndrome...Thus, activation of aberrantly-expressed alpha1-adrenoceptors may contribute to chronic inflammation and pain." -
Neuronal changes resulting in up-regulation of alpha-1 adrenoceptors after peripheral nerve injury (PD Drummond, 2014) One of
Dr. Waldinger's POIS studies noted that pre-mature ejaculation seemed common (56%, error=+-7%) among POIS patients being studied (
MD Waldinger, et. al., 2011). Ejaculation is caused by norepinephrine binding to the alpha1-Adrenergic receptor (
Ref1,
Ref2). If there is vascular or smooth muscle injury in the reproductive system causing alpha1A-receptor overexpression, this could explain the pre-mature ejaculation symptoms observed by Dr. Waldinger.
It is an interesting coincidence that exercise causes vasodilation partly by down regulating the alpha1-adrenergic receptor.
Exercise and fear also produce
IHR by releasing epinephrine (adrenalin) and norepinephrine.
If this could explain parts of the POIS-trigger, I still would have a few questions:- Where is the vascular/balloon injury located?
- What caused the original injury?
- Why does the injury not heal now?
In terms of question 1, POIS symptoms are top-bottom asymmetric in everyone but also left-right asymmetric in some. So the inability to heal properly would have to be localized to specific vessels in the body, while not affecting healing in other blood vessel locations. I suspect that the answers to questions 2 and 3 are the same. Whatever would cause the original injury is also probably keeping it from healing, unless the original injury was a random event.
If you have any corrections or other thoughts, please share. That was interesting!