I posted the following elsewhere, but since this thread is the main one containing info about Dr Amir's treatments, I thought it might be worth posting here as well:
One idea I had that might explain Dr Amir's treatment successes is that the patients he treats have illnesses caused by inflammation in the trigeminal nerve, leading to the sickness behavior response in the brain, a response which can cause many of the symptoms of ME/CFS. By his jaw bone manipulations, Dr Amir may be alleviating the inflammation in the trigeminal nerve and trigeminal ganglion, which then results in improvements or remission from ME/CFS, or from a ME/CFS-like illness.
As is well known, the vagus nerve can also trigger the sickness behavior response when this nerve encounters inflammation, and Michael VanElzakker's
vagus nerve infection theory of ME/CFS posits that the vagus is chronically infected and thus chronically inflammed, leading to chronic activation of the sickness response. The sickness behavior response produces many symptoms which are found in ME/CFS (a list of sickness behavior symptoms is given in
this post).
Both the vagus nerve and the trigeminal nerve are able to activate the sickness response in the brain when these nerves encounter inflammation or infection, so if there were inflammation in or around the trigeminal nerve, you might expect ME/CFS or an ME/CFS-like illness to appear.
(Some people like
@Ian developed ME/CFS from a jaw bone infection, which probably caused ME/CFS via a sickness behavior mechanism triggered by the trigeminal nerve which sensed the inflammation arising from this infection.)
How could a misaligned jaw lead to or exacerbate inflammation in the trigeminal nerve and trigeminal ganglion?
Well it just so happens that the trigeminal nerve innervates much of the jaw, and in particular, the trigeminal ganglion is located near the jaw bone joint (the temporomandibular joint). Thus if there were jaw bone misalignment and/or an extreme tightness of the muscles around the temporomandibular joint (this is called temporomandibular joint dysfunction), this could conceivably impinge on the trigeminal ganglion and nerve, leading to or exacerbating inflammation in or around the nerve, thereby triggering sickness behavior.
The trigeminal nerve ganglion is located near the jaw
bone joint (temporomandibular joint): might a misaligned
jaw impinge on this ganglion, causing inflammation in
the nerve, triggering sickness behavior?
View attachment 11785
Even if the ME/CFS was triggered by an infection, I would not have thought this rules out the possibility the jaw misalignment / temporomandibular joint dysfunction may be playing a role in maintaining the disease. It could be that the infection is underpinning some trigeminal nerve inflammation, but the jaw misalignment is exacerbating this inflammation, perhaps via the very tight jaw muscles reducing the blood supply to the nerve.
Infections can definitely cause trigeminal nerve inflammation. For example, in Lyme disease, trigeminal neuralgia (facial pain arising from inflammation in the trigeminal nerve) can occur.
In fact it says in
this article that:
And of course temporo-mandibular joint dysfunction is also a common comorbidity in ME/CFS, and like any comorbidity, may well be contributing to the pathophysiology of ME/CFS. So theoretically anything that can alleviate the TMJ dysfunction, such as the jaw re-alignment treatment that Dr Amir has been applying, may potentially be beneficial for ME/CFS.
Or another possibility to consider is that temporomandibular joint dysfunction might be mimicking the symptoms of ME/CFS. Indeed, Dr Amir actually published a short response in the British Medical Journal suggesting that temporomandibular joint dysfunction should be considered as a possible differential diagnosis in those believed to have ME/CFS:
Temporomandibular Joint dysfunction as a Differential Diagnosis in ME/CFS patients