+100%-

Geoff’s Narration

The GIST

 

Anni Cielo

The cones are off, the surgeries are healed, and Anni and Cielo are fine 🙂

Update – Once again, life has interfered, putting the blogs on a bit of a hiatus. (That really bugs me!) In fact, life has been interfering in all sorts of odd ways over the past year. There was a 6-week trailer breakdown, a 2-month van engine seizure, several flights from forest fires, a dog that got lost/a dog that got hit by a car/two dogs that underwent 3 surgeries, and another trailer breakdown, etc. Most recently, both solar batteries died, two fridges went on the fritz, and a couple of days ago 3 computers (3 computers! (I am not easy on them (lol) )were broken down (so much for having 2 backups), causing me to break camp and drive 6 hours to pick up a new computer two days ago. Yesterday, a rodent died in the van’s ventilation system (occupational hazard- camping). I have never had anything close to a year like this. The good news is that Anni and Cielo are completely recovered, and my health has remained stable (!) :). Here’s to a more peaceful (and productive) next year or so…

The good news is that the small ME/CFS research field is looking everywhere it can. The bad news (for me) is that in a multisystemic disease that leaves a lot of ground to cover.

The Blog

Recent publications indicated just how broad the ME/CFS research field is. They covered extracellular vesicles, cerebrospinal fluid proteomics, a diffusion-based brain scan, a broad-scale single-cell immune analysis, the circulating proteome, a deep dive into complement, a 7 Tesla fMRI brain study, a lipids analysis, a multi-omics study, and a plasma proteome study.

 

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Every study deserves a blog, but it’s way too much for a layman with ME/CFS to try to do justice to. So I took a different tack. Instead of covering each paper, I threw them all together

My goal was to see whether, despite the different types of tests, body parts examined, and the different aims of the research groups, any convergences or similar themes emerged. Could a similar story be being told across this very diverse bunch of studies?

That would be a nice sign. If we want anything in this disease, we want findings that make sense with other findings. What we don’t want are a bunch of findings that are at odds with each other. Research findings, no matter where they come from, are pointing in specific directions.

Findings in one part of the body, or from one type of analysis, that align with findings in another part of the body or a different kind of analysis, provide a particular kind of robustness.

There were a couple of studies I didn’t include (a mitochondrial study, the recent Prusty study, the Worthey whole genome study, and a gut flora study) in part because the list was already long, I’d already covered some of these studies, and I had to stop somewhere. Otherwise, these are simply the pathophysiological studies published over the past 3 or 4 months.

So again, the question was whether this grab bag set of studies – all done by different research groups with differing aims and focused on different parts of the body – would converge in their results.

I did this by feeding the abstracts from 11 studies into ChatGPT Pro and asking where the studies converged and where they did not. (If you don’t like AI, just pass this blog by.) For me, this kind of thought experiment is a good way to use AI. Treatment suggestions that involve strong drugs are another ball game. Once I had ChatGPT’s answer, I dug into the individual studies.

THE GIST

  • cascade

    We appear to be getting a grasp of the downstream problems, but what started the ball rolling in the first place?

    The ME/CFS field is just too productive for a person with ME/CFS facing all sorts of extra challenges right now (see update at the top of the blog) to cover, so I threw the last ten or so ME/CFS studies together and asked ChatGPT to see if general themes popped out. (If you’re not an AI engine fan, just pass this thought experiment by…)

  • Because the studies covered everything from large-scale multi-omics analyses to brain imaging, genetics, cerebrospinal fluid, and extracellular vesicles, etc., asking whether the same general themes emerged was quite a lot to ask. In fact, I thought, the answer would be no.
  • The answer was yes. In fact, ChatGPT thought that the great majority of the study results were “strongly convergent”.
  • Two major themes popped out. Instead of being characterized by inflammation, the main immune problem in ME/CFS was “immune remodeling” or altered immune networking – a more complex issue to resolve.
  • The other major theme involved blood and blood vessel issues. Despite the fact that no blood vessel studies were included, virtually every compartment that was assessed, whether it was in the brain, blood, or spinal fluid, showed evidence of blood/blood vessel problems.
  • A recent complement study by the CDC provided a possible connection to the immune system and the blood. Complement activation, it turns out, can not only activate mast cells but also damage blood vessels.
  • One might have thought that the most isolated organ in the body, the brain, might be different, but no. Recent brain studies that found evidence of widespread neuroinflammation, complement activation, and blood vessel problems suggest that the same process affecting the body may also be affecting the brain.
  • Other prominent themes include a failure to respond to stress and dysfunctional networks.
  • Note that while it’s good to see common themes emerge, these are all “downstream” effects. What we really want to know is what’s happened in the headwaters to start off all these diseases.
  • ChatGPT proposed three possibilities – two of which were quite linked. One involved a self-reinforcing loop in the brainstem that whacked the autonomic nervous system, producing blood vessel and immune irregularities. Another loop began with the immune system and dysregulated the blood vessels across the body. The last one involved a bodywide breakdown of metabolism, inhibiting energy production across all systems.
  • How to get to the source of these mysterious diseases? One magnificent, multiple-exertion stressor (exercise, tilt, cognitive stressor) study that employed many assessments to determine which system goes out first – causing other systems to fail. Once that is determined, attempts are made to turn off the system(s) at the source.

 

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Note that every study has its holes, and that’s a problem. ChatGPT provided cautionary assessments of each study, i.e., identified places where the findings might not hold up, and highlighted what it considered to be “anchor” studies (e.g., Hanson’s). It clearly preferred multi-omic studies to those that examined a single aspect.

For the purposes of this blog, all the study findings were considered real and accurate, but that may not be true.

You can decide for yourself if the findings make sense.

Two Main Clusters

More than Inflammation: Immune Remodeling Writ Large

network

It wasn’t so much that the immune system had become activated as it was that it had become remodeled.

We talk a lot about inflammation, but the key immune takeaway was that immune “remodeling” has occurred. That is, ME/CFS is associated with an immune system that is not simply activated but, more importantly, behaves abnormally. This makes sense. If ME/CFS had simply been caused by immune activation, we could just use immunosuppressants. Instead, it’s more complicated.

Nor is ME/CFS simply a T-cell or B-cell disease; that would probably be preferred, but instead it’s a disease of broad immune changes. In other words, it’s not HIV-AIDS (primarily affects T-cells), it’s more complex than that.

This finding jived nicely with Nancy Klimas’s results using a supercomputer, which revealed altered immune networking in ME/CFS. The immune system is overactivated in some areas and underactivated in others.

One encouraging theme emerged, though. Even in this recent swath of studies, a familiar theme showed up: the innate immune system (neutrophils/monocytes) is accompanied by substantial problems in the adaptive immune system (T and B cells). That scenario gives researchers a nice start.

We saw this best, perhaps, in Ian Lipkin’s big 2025 multi-omics study (not covered in this analysis) titled “Heightened innate immunity may trigger chronic inflammation, fatigue and post-exertional malaise in ME/CFS“. That study highlighted innate immune activation, as well as problems with energy production, fatty acids, lipids, and connective tissue.

“Screaming Immune Activation”: Major Lipkin Study Finds ME/CFS Systems Folding Under the Stress

Blood and Blood Vessel Problems

blood vessels

Blood vessel problems across the body could, if present, affect just about everything.

Five years ago, we didn’t hear much about blood and blood vessel issues in ME/CFS, but they’re now a major theme. Even though no blood vessel study was found in the mix, evidence of blood and blood vessel problems showed up in most of the compartments tested.

Whether it was signs of activated platelets and coagulation pathways in the cerebral spinal fluid, secretome changes in the serum, hemoglobin issues in the extracellular vesicles, platelet activation in the immune study – indications that something was awry in the blood/blood vessels showed up all over the place.

If two major themes are present, we really want to find a way to connect them together. One of the studies did that in spades. Time will tell whether it turns out to be a major factor.

The Triad in ME/CFS and long COVID? Antibodies, the Mitochondria, and the Blood Vessels

A Complementary Finding

If any part of the immune system has the potential to link immune remodeling and the blood vessels, it’s probably the complement system. Not only is the complement system a master at turning on mast cells, it can also degrade the connective tissues and dramatically affect the blood vessels.

complement system

Could dysregulation in the complement system be the bridge between the immune system and the blood vessels? (Image by Architha-Srinivasan, Wikimedia Commons)

Back in 2003, CDC researchers found exercise increased complement fragmentation in ME/CFS. Twenty-three years later, in a relatively large study (n=171), CDC researchers identified higher C3 levels in ME/CFS patients overall and found that almost 40% had a genetic predisposition to altered complement activity. They were able to backstop some of their genetic findings by noting that similar genetic variants showed up in the Decode ME study. (It’s notable that this is the only paper in this analysis that’s going to postulate a cause…).

The complement system recently popped up big time in several long COVID studies, including a large proteomic study that linked complement activation to coagulation.

The Complement Connection in Long COVID: Microclots, Herpesviruses and More – Could it Explain Much?

Because complement problems may be widespread in ME/CFS, but only a subset of patients have a genetic predisposition to aberrant complement activity, it’s possible that many roads may lead to Rome; e.g., to the complement problems in ME/CFS.

More than the Mitochondria

The “more than the mitochondria finding” has been emerging for some time. Widespread metabolic changes and lipid abnormalities in the serum, B-cells, and extracellular vesicles again suggested that metabolic problems were widespread. While the mitochondria may be affected, ME/CFS appears to be more than a mitochondrial problem. Instead, it appears to be a pervasive state of energy dysregulation affecting many tissues, particularly exacerbated by stress.

The Brain

While the brain is the body’s master regulator, it’s also the most isolated organ. If any organ is going to look different, it’s going to be the brain. On the other hand, finding similar processes occurring in the brain and the body would suggest that core problems have been found.

brain on fire

Widespread findings of neuroinflammation and evidence of complement dysregulation and clotting in the brain seemed to echo what was happening in the body.

One recent paper suggested that the brain indeed plays a central role in ME/CFS. Using more advanced imaging techniques, this paper demolished past (negative) results and found indications of widespread neuroinflammation. The fact that neuroinflammation was associated with increased symptoms suggested it was having a dramatic effect.

Because the white matter in the brain is particularly sensitive to vascular problems, the widespread white matter abnormalities found could be caused by the blood/blood vessel (platelet activation, and endothelial cell issues) and the innate immune activation, as other studies have found. The cerebral edema found could also reflect blood vessel problems as well as inflammation, immune cell infiltration, and others.

Indeed, the first factors out of the gate in the CSF proteome study were none other than the complement system and clotting. Those findings jived well with indications that the extracellular matrix (read “connective tissues”) in the central nervous system had been “remodeled”. They also appeared to align with extracellular matrix remodeling recently found in muscle tissues in Germany, suggesting that this remodeling (read “blood vessel problems”) may be occurring throughout the body and brain.

Are Barriers to Blood Diffusion Causing ME/CFS and Long COVID? The 2025 Charité International Conference Pt I

Meanwhile, a pathway analysis suggested that neutrophil degranulation (there’s the innate immune activation again) and platelet activation (blood/blood vessels) was particularly prominent in POTS. The worse off the POTS patient was, the more these pathways kicked in (complement, more coagulation, insulin-like growth factor), most of which were highlighted by other studies.

Despite the brain’s isolation, it looked like the same processes may be occurring in it and the body.

A Failure to Respond

The idea that when pushed, systems break is not a new one in ME/CFS, but these recent studies highlighted in how many ways this may be occurring. The Hanson paper, “Temporal Dynamics of the Plasma Proteomic Landscape Reveals Maladaptation in ME/CFS Following Exertion“, found that exertion stressors produced pretty much across-the-board problems in immune, metabolic, and neuromuscular pathways.

Meanwhile, the brain fMRI study indicated that, as in the body, an exertional stressor causes connections to fray. A reward circuit that bottomed out after mental exertion could help explain the mental exhaustion that makes it so difficult to take on tasks when PEM is present. (The reward/motivation pathway is central to energy production.)

The suppression of T- and B-cell signaling reported in the Hanson paper aligns well with the adaptive immune dysregulation paradigm. The emergence of inflamed TRP channels was particularly intriguing given the recent Australian paper that pretty much solidified the TRPM3 NK cell ion channel findings in ME/CFS.

TRPM3 ion channel problems have only, to my knowledge, been examined in NK cells thus far, but watch out if they’re present in other cells. Because these calcium channels play a major role in energy production/metabolism, if found in other cells, they could affect immune, sensory, and autonomic nervous system function, as well as blood vessel problems and exercise performance.

This recent spate of studies indicates, once again, that the best way to understand ME/CFS is to push the systems with a stressor and watch them fall apart.

A Network Disorder

Lastly, this short review of recent ME/CFS studies also makes it clear that ME/CFS is a “network” disorder. Anyone hoping for a single disturbed pathway is going to be disappointed. Instead, it appears that the normal cross-talk across multiple systems, particularly after exertion, is off. The problems are showing up everywhere – the immune system, the brain, the muscles, the blood, and…the gut.

Note that bizarre networks also showed up in a major, AI-driven ME/CFS gut study.

Gut Reactions: BioMapAI Points to Multiple Dysregulated Systems in ME/CFS

Still Downstream…

cascade

We appear to be getting a grasp of the downstream problems, but what started the ball rolling in the first place?

It was good to see lots of convergences show up, highlighting many interconnected systems. That, in itself, is a clue – but it’s a downstream clue. We’re kind of stuck swimming around in an estuary that many rivers flow into. We can identify the rivers, but what we really want to know is what’s happening in the headwaters that’s producing this maze of problems.

The Big Picture

The key finding is that a maladaptive reset of the body’s stress-response network has occurred. Every challenge is met with dysregulation. The fact that the problem has to be system-wide cuts out a lot of options. I asked ChatGPT what could have produced such a fundamental reset across so many systems.

 “A self-reinforcing loop sitting at a central control point has gotten locked in”

loop

A self-reinforcing loop centered, perhaps, at the brainstem.

The most likely location for this may be the brainstem – a key player in autonomic nervous system regulation. The brainstem regulates heart rate, blood pressure, breathing, arousal, blood flows in the brain, and even immune functioning to some extent. Problems in the brainstem could, in turn, destabilize the endothelium/microcirculation.

We know that brainstem problems play a key role in a subset of patients. The big question is how many.

“A persisting infection/viral reactivation that chronically activates and dysregulates the immune response and could also be impairing blood flows, etc.”

This scenario, thankfully, is being very actively pursued in long COVID. Thus far, it appears pretty clear that this is happening in some long-COVID patients but not all. The big question is how it’s happening. If LC researchers can figure that out, we’ll have a template that can be applied to ME/CFS and similar diseases.

“An immune–vascular/endothelial loop that is keeping the blood from getting through.”

immune network

Or is a wonky immune network producing the loop?

This is similar to the infection model but assumes the immune system is simply stuck. Every time any part of the body, whether it’s the brain, the muscles, etc. is stressed, the immune system goes bananas and shuts down blood flows. This could involve an autoimmune process. Note that blood flows play a role in each of these scenarios.

A cellular stress-response / immunometabolic defect – a deep metabolic dysregulation causes cells across the body to shut down their power plants when put under stress. Unable to activate the proper energy production systems, a widespread failure results.

Locking Down What’s Happening

OK – how could we lock down what’s happening? The answer was basically to do the study I’ve wanted for decades. Get a big group of ME/CFS patients, put them on a bicycle, and then measure EVERYTHING.

Hanson, Klimas, Lipkin, Systrom, and others have been moving in this direction. Hanson’s molecular explorations of the effects of exercise, in particular, have produced some profound results. We don’t yet have the exercise study to end all exercise studies, though. I thought the NIH’s Intramural study would be that study, but they chose not to use the exercise session as a stressor.

Remember that these recommendations are all based on the results from the last ten or so studies – not the ME/CFS field as a whole. I also prompted ChatGPT, which did not suggest metabolomics/proteomics/transcriptomics be assessed in its first pass, so I asked it to consider them.

In short, it recommended a deeply phenotyped ME/CFS (Canadian Consensus Criteria; stratified by sex, orthostatic intolerance, age, activity level, infectious/non-infectious) and sedentary healthy control cohort (n=160 total) exercise study.

Three challenges – an orthostatic challenge (tilt table), a cognitive (Stroop, n-back, sustained attention), and an exercise stressor – would be employed. Everyone would take all three tests (!). A small, plucky group of patients would also undergo a 2-day CPET.

bullseye

The goal – catching ME/CFS/long-COVID patients’ systems as they go haywire during exertion.

The effects of each stressor would be assessed immediately after the stressor, and then at 24 and 48 hours. The effects of the exercise stressor, though, would also be assessed early in the exercise test, as the ventilatory threshold is being reached, and after it is reached, as well as at the end of the exercise, and 10 minutes, 2 h, 6 h, 24 h, 48 h, 72 h later.

(Ok – three stress tests cuts out quite a few patients, but does that really matter? The Open Medicine Foundation’s Severe ME/CFS patient study suggested that severity is a matter of degree, not difference; i.e., severe patients are simply worse off in the same way as less severe patients).

Lactate, pyruvate, catecholamines, purine breakdown products, endothelial markers, complement markers, microvascular imaging, mitochondrial functioning, calcium fluxes, TPM3, NK/T-cell function, blood flows to the brain, brainstem imaging, markers of white matter inflammation, proteomics, metabolomics, and more would all be assessed at different timepoints.

A study like this could pin down what gets triggered first by exertion. My sense is that we will get to that answer over time, but how nice it would be to have a big study assess all these things at once. Does the immune system go haywire first, or is it the autonomic nervous system? Could oxidative stress quickly knock out the mitochondria? What happens to the blood vessels? We know the brain gets affected, but we don’t know how. (Reduced blood flows, reduced energy production, increased inflammation?…)

The idea is to see what comes first and what follows as a matter of course. Once you identify the initial breakdown(s), a proof-of-concept study targeting the upstream areas is conducted in an attempt to resolve the downstream problems.

As ME/CFS researchers are elucidating how exertion affects the body, a large NIH effort called MoTrPAC, which has been underway for about 10 years, is determining what happens at the molecular level during exercise. Among the things it’s been identifying is what has to go right for exercise to work. An upcoming blog will check out how MoTrPAC findings may help us understand what’s gone wrong in ME/CFS, long COVID, fibromyalgia, etc.

The $170 Million NIH Exercise Study – and What it Could Do for ME/CFS

 

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Please support Health Rising during our quickie summer donation drive. Our goal is to raise $15,000. 

 Find out more here.

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