1) People who are very severe would seem to be in permanent PEM but there isn't any evidence of inflammation clinically or in terms of acute phase response.
2) Doing continuous monitoring of a cohort seems a very sensible idea but I very much doubt that anything important has been missed in terms of well known cytokines.
1) I think it’s more subtle. There is continuous PEM but within that you have different Grades of (worse and less) PEM
– and than you can get big PEM crashes within the PEM
If am go off my own experience and other severe ME I know
2) I agree. As far as I know, there is not real good research measured at various time points. Including cytokine profile
– specially, including the very severe, as they cannot come to any clinic
- so they’re often excluded, although maybe the most interesting group research wise
what I’ve never seen is any method really even taking such tests in us when we are definitely rested (which we need to be mobile and be a ‘call when it happens’ because yes I’m in PEM more than I’m out of it and who knows when it actually ends) and then tests in days eg after I’ve had to do something that’s exerted like a big travel appt where (if it’s fine needle just small amounts of blood and come to me in bed somehow without me opening the door, I can’t even set an alarm to be awake reliably in that situation my body will sleep thru it) it could be taken in the days after to see that’s anything that does show PEM and does vary in the days post exertion
So I hope someday they will Conduct a serious
longitudinal study on ME/CFS patients to gather extensive data - before/after Exertion (PEM)
1) Participants: 100 ME/CFS patients
- 25 or 50% severe
– from which 10% very severe
2) Study Duration: 4 months
3) Data Collection Methods:
- Heart rate monitor data 24/7 (e.g.Fitbit, Garmin)
- Collection of urine, blood, and saliva samples
- Optional: Biopsies, Stool samples
- To be decided: exact markers
4) Data collection points
- at least 20 time-points
-
Specifically when baseline changes e.g. PEM-crash
- for Mild/moderate the exertion can be induced
5) How will Samples be collected:
- for Mild/moderate can be collected at laboratory / by MD
- Very Severe = Having a local nurse visiting to collect data
- NB: Hopefully in the future, we can sample our blood ourselves
- As this will be the most expensive and complicated part
6) Outcome:
- Accumulation of a vast number of longitudinal data points
- for in-depth analysis (use of AI, etc)
PS: inspired by a comment from dr. Renz Polster