pretty interesting. so I have a question; if POIS isn't an autoimmunity..then how do you explain why orgasms don't give me the symptoms? Or least, the symptoms are proportionate to the seminal fluid that is triggered out? I only get symptoms from ejaculations, not from the orgasm.
That's cool that you were able to identify a correlation between ejaculation and POIS symptoms. I think your observation can be explained by the fact that norepinephrine triggers ejaculation but not orgasm. Norepinephrine (noradrenaline) and epinephrine (adrenaline) are released during orgasm.
Norepinephrine triggers ejaculation through the alpha1-adrenergic receptor (
Ref). Norepinephrine also reactivates latent infections in the body (
post1,
post2,
human study 1,
human study 2). So when there is a rise in norepinephrine due to sexual activity, there is both ejaculation and infection-reactivation simultaneously. Since norepinephrine causes both these events, they can occur at the same time.
In most normal people (both men and women),
natural killer cells (NK cells, CD56+) rise during sexual activity.
I believe that this increase in immune activity is a way for the body to suppress latent infections during sexual activity and prevent pathogens from spreading to sexual partners. So NK cells (and possibly also neutrophils) are actively preventing sexually transmitted disease (STD, STI) through their sex-induced increase in activity. And this sex induced increase in immune function is what occurs in normal non-POIS men and women.
However, one idea
that I have not been able to demonstrate or disprove with the data is the idea that POIS could be caused by an immune deficiency of the innate immune system. POISers seem to have statistically more immune deficiency than the general population (
post1,
post2). So I wonder if in POISers, the sex-induced increase NK cell activity does not occur. For example,
--1 of us show lymphocytes do not increase in response to lung infection (aswinpras06)
Low or unresponsive lymphocyte levels is a problem because total lymphocyte counts are supposed to increase during sexual activity.
To test an immune deficiency hypothesis, we would need timed NK cell counts in POISers to compare with normal changes in NK cell counts that occur during sexual activity.
Are cytokines not a signature of autoimmunity? Do we have tech that allows us to 'see' or observe cytokines / T-Cell / B-Cell proliferation in-real time immediately after ejaculation? If we can do that...then we can be one step closer to finding cause. Observe cytokinetic activity in real-time for victims. Especially for guys like me who's symptoms last an entire month. With symptom severity different at each week. What do you think?
Cytokines are just general signalling molecules that immune cells use to talk to one-another or other cells. Cytokines are released when the immune system is addressing cancer, poison, physical injury, autoimmunity, allergy and infections.
I started a thread devoted to exactly your question about measuring in
real-time. You can find it here (
Neuroendocrine responses to arousal and orgasm). It includes the time course for various neuroendocrine hormones, neurotransmitters, heart parameters, immune cells and cytokines during sexual activity. Current parameters listed are: prolactin, testosterone, follicle stimulating hormone (FSH), Luteinizing hormone (LH), cortisol, growth hormone (GH), dopamine, histamine, adrenaline (epinephrine), noradrenaline (norepinephrine), oxytocin, vasopressin, beta-endorphin, melatonin, blood pressure (systolic, diastolic), heart rate, natural killer cells, T cells, B cells, and cytokines (IL-6 and TNF-alpha). These parameters are measured in non-POIS men and women, so we can use this data as an effective
control group. Thanks Suffering1992 for the interesting questions!