Humoral immune dysfunction common in CFS

Research abstract:

Chronic fatigue syndrome (CFS) is a severe disease characterized by various symptoms of immune dysfunction. CFS onset is typically with an infection and many patients suffer from frequently recurrent viral or bacterial infections.

Immunoglobulin and mannose binding lectin (MBL) deficiency are frequent causes for increased susceptibility to infections. In this study we retrospectively analysed 300 patients with CFS for immunoglobulin and MBL levels, and B-cell subset frequencies.

25% of the CFS patients had decreased serum levels of at least one antibody class or subclass with IgG3 and IgG4 subclass deficiencies as most common phenotypes. However, we found elevated immunoglobulin levels with an excess of IgM and IgG2 in particular in another 25% of patients.

No major alteration in numbers of B cells and B-cell subsets was seen. Deficiency of MBL was found in 15% of the CFS patients in contrast to 6% in a historical control group. In a 2nd cohort of 168 patients similar frequencies of IgG subclass and MBL deficiency were found.

Thus, humoral immune defects are frequent in CFS patients and are associated with infections of the respiratory tract.

Frequent IgG subclass and mannose binding lectin deficiency in patients with chronic fatigue syndrome, by S Guenther, M Loebel, AA Mooslechner, M Knops, LG Hanitsch, P Grabowski, K Wittke, C Meisel, N Unterwalder, HD Volk, C Scheibenbogen in Hum Immunol. 2015 Sep 29. pii: S0198-8859(15)00465-6 [Epub ahead of print]

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TMD in CFS is indicator of greater autonomic dysfunction

Research abstract:

Background:
Chronic fatigue syndrome (CFS) is heterogeneous in nature, yet no clear subclassifications currently exist. There is evidence of dysautonomia in almost 90% of patients and CFS is often co-morbid with conditions associated with autonomic nervous system (ANS) dysfunction,  such as temporomandibular disorders (TMD).

The present study examined the point prevalence of TMD in a sample of people with CFS and explored whether co-morbidity between the conditions is associated with greater ANS dysfunction than CFS alone.

Method:
Fifty-one patients and 10 controls underwent screening for TMD. They completed a self-report measure of ANS function (COMPASS-31) and objective assessment of heart rate variability during rest and standing (derived using spectral analysis). Frequency densities in the high-frequency (HF) and low-frequency (LF) band were calculated.

Results:
Patients with CFS were divided into those who screened positive for TMD (n=16, 31%; CFS+TMD) and those who did not (n=35, 69%; CFS-TMD).

Both CFS groups had significantly higher self-rated ANS dysfunction than controls. CFS+TMD scored higher than CFS-TMD on the orthostatic and vasomotor subscales. The CFS+TMD group had significantly higher HF and significantly lower LF at rest than the other two groups. In discriminant function analysis, self-report orthostatic intolerance
and HF units correctly classified 75% of participants.

Conclusions:
Almost one-third of CFS patients screened positive for TMD and this was associated with greater evidence of parasympathetic dysfunction.

The presence of TMD shows potential as an effective screen for patients with CFS showing an autonomic profile and could help identify subgroups to target for treatment.

Autonomic function in chronic fatigue syndrome with and without painful temporomandibular disorder, by Lucy J. Robinson, Justin Durham, Laura L. MacLachlan,  Julia L. Newton in Fatigue: Biomedicine, Health & Behavior, October 5, 2015

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Can Mindfulness reduce stress in long term physical conditions?

Review abstract:

OBJECTIVE:

To identify whether mindfulness-based stress reduction is effective in improving physical health outcomes for long-term physical conditions.

METHOD:

A systematic review of the literature (retrieved from MEDLINE, PubMed and PsycINFO).

RESULTS:

Fifteen studies were included in the review. None of the studies assessed as having a low risk of bias demonstrated significant improvements in physical health status although there was some emerging evidence that mindfulness-based stress reduction may be useful in pain conditions. There was some preliminary evidence that it may also be effective in improving primary insomnia and irritable bowel syndrome. Small to moderate effect sizes were also found for asthma, pain, tinnitus, fibromyalgia and somatization disorders.

CONCLUSION:

Although there is some preliminary support for the use of mindfulness-based stress reduction in physical health conditions, further research is required before it could be considered an effective intervention for improving physical health outcomes.

Mindfulness-based stress reduction for long-term physical conditions: A systematic review, by M Crowe, J Jordan, B Burrell, V Jones, D Gillon, S Harris in Aust N Z J Psychiatry 2015 Sep 29. pii: 0004867415607984. [Epub ahead of print]

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Dysfunctional pain – challenges for drug discovery

Research abstract:

‘Dysfunctional pain’, a type of chronic pain, is associated with a broad range of clinical disorders, including fibromyalgia, irritable bowel syndrome and interstitial cystitis. It is emerging as a serious issue due to the negative impact of inexplicable pain on quality of life, lack of effective therapies and health care cost.

Although drug discovery efforts in pain research have so far focused primarily on inflammatory and neuropathic pain, this editorial attracts attention to dysfunctional pain research and discusses a possible fundamental framework for tackling this difficult issue.

While dysfunctional pain is characterized by chronic widespread or regional pain symptoms and occurrence of pain amplification, underlying pathophysiologies remain to be identified. Thus, a pivotal step in future research would be the exploration of pathophysiological pathways, such as relevant molecular networks, which are responsible for dysfunctional pain.

Utilization of developing technologies paves the way for the identification of underlying pathophysiologies and the development of effective drugs which would eventually solve the clinical issues associated with dysfunctional pain.

Challenges in drug discovery for overcoming ‘dysfunctional pain’: an emerging category of chronic pain, Nagakura in Expert Opin Drug Discov. 2015 Oct;10(10):1043-5. [Epub 2015 Jul9]

 

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Association between cognitive performance & pain in CFS

Research abstract:

BACKGROUND: In addition to the frequently reported pain complaints, performance-based cognitive capabilities in patients with chronic fatigue syndrome (CFS) with and without comorbid fibromyalgia (FM) are significantly worse than those of healthy controls. In various chronic pain populations, cognitive impairments are known to be related to pain severity. However, to the best of our knowledge, the association between cognitive performance and experimental pain measurements has never been examined in CFS patients.

OBJECTIVES: This study aimed to examine the association between cognitive performance and self-reported as well as experimental pain measurements in CFS patients with and without FM.

STUDY DESIGN: Observational study.

SETTING: The present study took place at the Vrije Universiteit Brussel and the University of Antwerp.

METHODS: Forty-eight (18 CFS-only and 30 CFS+FM) patients and 30 healthy controls were studied. Participants first completed 3 performance-based cognitive tests designed to assess selective and sustained attention, cognitive inhibition, and working memory capacity. Seven days later, experimental pain measurements (pressure pain thresholds [PPT], temporal summation [TS], and conditioned pain modulation [CPM]) took place and participants were asked to fill out 3 questionnaires to assess self-reported pain, fatigue, and depressive symptoms.

RESULTS: In the CFS+FM group, the capacity of pain inhibition was significantly associated with cognitive inhibition. Self-reported pain was significantly associated with simple reaction time in CFS-only patients. The CFS+FM but not the CFS-only group showed a significantly lower PPT and enhanced TS compared with controls.

LIMITATIONS: The cross-sectional nature of this study does not allow for inferences of causation.

CONCLUSIONS: The results underline disease heterogeneity in CFS by indicating that a measure of endogenous pain inhibition might be a significant predictor of cognitive functioning in CFS patients with FM, while self-reported pain appears more appropriate to predict cognitive functioning in CFS patients without FM.

Associations Between Cognitive Performance and Pain in Chronic Fatigue Syndrome: Comorbidity with Fibromyalgia Does Matter, by K Ickmans, M Meeus, M De Kooning, L Lambrecht, N Pattyn, J Nijs in Pain Physician 2015 Sep-Oct;18(5):E841-E852

 

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Do people with ME and CFS really recover?

The Recovery Question, by Dan Neuffer in Health Rising Forum, Sep 17 2015

There is much information out there on how to diagnose Fibromyalgia Syndrome (FMS) or Chronic Fatigue Syndrome (CFS) (also described as Myalgic Encephalomyelitis or ME). And whilst a diagnosis can be elusive for many people suffering with this illness, there is certainly no doubt that they are very ill, even if their doctors, family or friends don’t always share this certainty.
But there is little talk about recovery; how to identify if you have fully recovered from Fibromyalgia or ME/CFS. Why? Possibly because many people including doctors may believe that recovery isn’t possible – or at least not for them or for their patients. After my 4th year of trying to get well again, I certainly myself came to that conclusion and had given up hope.

But in recent years, numerous recovery stories have popped up on the internet. (See Recovery Stories section on Health Rising and CFS Unravelled). However some people believe, probably based on their hard-won experience, that recovery from ME/CFS or fibromyalgia is impossible. In other words, if you recovered from it you never had it in the first place.

Having recovered myself after over 6 years of illness, which at times was very severe, I understand but no longer share this belief. Since my recovery I have spoken with many other people that recovered, some who did so even after decades of illness which has strengthened my belief in recovery beyond my own experience. But of course, not everyone is easily convinced by hearing recovery stories, and for several reasons.

  • I suspect that many “recoveries” may be little more than symptom suppression and management
  • It’s not exactly clear what “recovery” is
  • That recovery can occur in a wide variety of ways is confusing

Recovery vs Cure vs Remission

The dictionary states that

  • A cure is the end of a medical condition; the substance or procedure that ends the medical condition, such as a medication, a surgical operation, a change in lifestyle, or even a philosophical mindset that helps end a person’s sufferings. It may also refer to the state of being healed, or cured.
  • A remission is a temporary end to the medical signs and symptoms of an incurable disease. A disease is said to be incurable if there is always a chance of the patient relapsing, no matter how long the patient has been in remission.

So cure is an “end” of a medical condition which implies that there is no chance of the patient relapsing. That raises the question of whether there are cures for chronic illnesses? In fact most if not all chronic illnesses are managed not cured. Cancer, heart disease, depression, MS, ALD, AIDS, diabetes, the list is nearly endless – can be managed by medication, lifestyle, diet, etc. – but are rarely cured. That suggests that in general with regard to chronic illnesses, the word cure may a misnomer.

Perhaps the word cure also suggests a single treatment or therapy that works the same for everyone with little room for tailoring treatment. Since no such “cure” is known for Fibromyalgia and Chronic Fatigue Syndrome (Myalgic Encephalomyelitis) perhaps remission is more appropriate term to use for those who have regained their health. But that word suggests that their period of wellness may be temporary, that at some point they will or may have a chance of getting sick again. We know this is true, of course, and a survey on Health Rising supports this, but such negative connotations don’t necessarily serve those that regained their health, nor do they set up great expectations for those still working to restore their health.

That’s why my preference is for the word recovery. A recovery is a restoration of health or functioning and can be either partial or full. It goes beyond stopping the underlying disease mechanism – which a cure does. Even people who get “cured” from a disease, still need to make a recovery.

What Constitutes a Recovery From Fibromyalgia/ME/CFS?

I have come across people who explain how they take dozens of supplements, regular IV infusions, hormone treatment and so on, in order functioning fairly normally again. But I ask, if you’re managing or reducing your symptoms using a range of medications, hormones and supplements to something that resembles normal health – is that recovery? I would say no. I would say those people are managing their illness using orthomolecular or some other branch of medicine but they are not recovered.

Some people are able to very significantly reduce their symptoms by limiting their physical and mental activity. By avoiding stress, eating the “perfect diet” and staying inside a limited physical activity envelope their symptoms are much reduced or sometimes gone. They feel healthy. Others can participate in most aspects of life – except for rigorous exercise. I think these are cases of improvement – sometimes very significant improvement – but not recovery.

To me, a recovery means that your body’s function is restored enough to allow it to cope with the normal activities associated with full-time work and an active lifestyle that includes doing social activities and exercise, as well as eating a normal diet (normal not meaning good!). Even here, though, there are levels.

I remember when I first felt recovered. My flare ups had ceased and I no longer had pain, fever, insomnia, gut dysfunction or brain fog. But other symptoms were trickier and more difficult to quantify. Whilst I had thought my energy and immune function had returned to normal, a year later, I noticed that my energy levels were still increasing and that my health felt even more robust.

So although I previously thought I had fully recovered, I clearly had not. My reference point regarding what was “normal” health, had clearly shifted during my years with ME/CFS/Fibromyalgia.

In my mind recovery of health has to be about your body functioning well and giving you access to the experience of good health without being reliant on external powerful drugs or severe lifestyle restrictions.

Does Recovery Occur?

Given that definition of recovery – have people fully recovered from this illness? The recovery stories suggest yes and while recovery may not be common it may be happen more often than we think. I have interviewed over 40 people that recovered and met around 200 personally. Given the lack of study in this area, the percentage of people who make full recoveries is impossible to say.

It’s at this point that some skepticism naturally emerges. I was skeptical myself, pathologically so in my later years of suffering with ME/CFS and Fibromyalgia. I, too, had unsuccessfully tried many of the things people had used to recover from. (In fact, some of those things later worked for me.) Anyone who has experienced a bleeding wallet thanks to never-ending tests, treatments and empty promises will inevitably adopt a bit of healthy skepticism.

For people that have tried many things, including the things those other people used to get well, but despite all that have still not recovered, I understand the frustration. I understand why they might assert that “They  didn’t have what I have”. For most of us, most symptom treatments simply do not lead to recovery.

To Have Had ME/CFS/FM or ME or Not?

But can those people go further and say the people who recovered didn’t have ME/CFS/FM or ME?

When people make a full recovery and people say that they never had the illness or had something else, that is too far in my view. There are undoubtedly varying degrees of illness and different secondary dysfunctions that form the syndrome, but suggesting that someone didn’t have the illness based on the fact they got their health back, does not seem very scientific.

If you look at the symptoms and experience of many people that claim recovery, you can see that many were significantly ill. Almost all, for instance, had to quit working. Some became bedridden and many became largely homebound. Many spent years searching for something that might help. Some were ill for decades.

The different treatments used can raise questions as well. People, after all, have recovered in all sorts of ways. I think most people would agree that a person who recovered using antivirals had ME/CFS or ME. But what if “less powerful” treatments worked? What if supplements and herbs in conjunction with pacing made the difference? What if mind/body work played a large role? Or if diet or strict pacing did? Or a combination of “softer” treatments did? People diagnosed with ME/CFS/FM who have had very significant illness have recovered using all these approaches. Does the type of treatment used determine what kind of illness someone had?

Then there are people’s “accidental” recoveries: people who don’t know WHY they recovered. Can you recover from a serious chronic illness without knowing why? My experience and discussions with people says yes. I imagine we looked hard enough in the literature or talked to a doctor you would find cases of people who had recovered from many chronic illnesses where no one was exactly sure why.

Did all these people that claim to have recovered from “ME” or “ME/CFS” or “Fibromyalgia” actually have it? I think it makes sense to look at the details. Both fatigue and chronic pain are often used to define the illness, but we know there are other reasons for such symptoms, even if they are chronic. But I believe that people who had the RANGE of symptoms we associate with this SYNDROME, who saw doctors and tried to get well and whose illness persisted, I believe that they truly had the illness – as we know it now.

So many of us have been frustrated by the need to ‘prove’ our invisible illness with the medical community, our family and our friends. It’s ironic that some of those same people now have to prove they had ME/CFS/FM at all – simply because they got well.

Dan’s Recovery Story

Action for ME asks Can and do people recover? part 1

Can and do people recover part 2

Medical and scientific views on recovery

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Perfectionism & stress in CFS could be due to HPA dysregulation

Article Background: There is increasing evidence that Chronic Fatigue Syndrome (CFS) may reflect a dysregulation of the hypothalamic–pituitary–adrenal (HPA) axis after a prolonged period of hyperactivity due to chronic stress/overload.

We and others have hypothesized that chronic stress and subsequent neurobiological alterations (i.e. HPA axis hyporeactivity) in CFS may result, at least in part, from elevated levels of self-critical (or maladaptive) perfectionism.

Perfectionism and stress reactivity in patients with chronic fatigue syndrome. Kempke S & Claes S. Psychoneuroendocrinology. 2015 Nov; 61:59

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Oxidative phosphorylation & lactic acid excretion are impaired in severe ME

Case study abstract:

Background: In this study the muscle bioenergetic function in response to exercise in severe ME was explored to see if the underlying metabolic problem in ME, responsible for the severe difficulties with trivial exercise, and the severe loss of muscle power, could be discovered.

Methods: Inorganic phosphate, creatine kinase and lactate were measured in a former Dutch National Field Hockey Champion, who is now a patient bedridden with severe ME, before and 5 minutes after very trivial “exercise”, from which his muscles needed 12 hours to recover.

Results: Inorganic phosphate and creatine kinase were both normal, however, lactate after this trivial exercise was very high, and further testing showed that a second batch of lactic acid was excreted after the same exercise with a 6-fold delay, showing that the lactic acid excretion was impaired and split into two. And this was delayed up to 11- fold by eating closer to the exercise.

Conclusion: This study found that in severe ME, both the oxidative phosphorylation and the lactic acid excretion are impaired, and the combination of these two is responsible for the main characteristic of ME, the abnormally delayed muscle recovery after doing trivial things.

The muscle recovery is further delayed by immune changes, including intracellular immune dysfunctions, and by lengthened and accentuated oxidative stress, but also by exercise metabolites, which work on the sensitive receptors in the dorsal root ganglions, which in severe ME are chronically inflamed, and are therefore much more sensitive to these metabolites, which are produced in high quantities in response to trivial exercise, which for ME patients, due to the underlining metabolic problem, is strenuous exercise. And a similar problem is most likely responsible for the abnormally delayed brain recovery after doing trivial things.

This study also shows that the two metabolic problems are the result of an impaired oxygen uptake into the muscle cells or their mitochondria and in combination with the Norwegian Rituximab studies, which suggest that ME is an autoimmune disease, it is suggestive that antibodies are directly or indirectly blocking the oxygen uptake into the muscle cells or their mitochondria.

The aerobic energy production and the lactic acid excretion are both impeded in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome, by Mark Vink in J Neurol Neurobiol 1(4) September 2015

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Key issues for understanding ME, biological markers & diagnostic criteria

Review abstract:

Myalgic Encephalomyelitis (ME) continues to cause significant morbidity worldwide with an estimated one million cases in the United States. Hurdles to establishing consensus to achieve accurate evaluation of patients with ME continue, fuelled by poor agreement
about case definitions, slow progress in development of standardized diagnostic approaches, and issues surrounding research priorities.

Because there are other medical problems, such as early MS and Parkinson’s Disease, which have some similar clinical presentations, it is critical to accurately diagnose ME to make a differential diagnosis.

In this article, we explore and summarize advances in the physiological and neurological approaches to understanding, diagnosing, and treating ME. We identify key areas and approaches to eludicate the core and secondary symptom clusters in ME so as to provide some practical suggestions in evaluation of ME for clinicians and researchers.

This review, therefore, represents a synthesis of key discussions in the literature, and has important implications for a  better understanding of ME, its biological markers, and diagnostic criteria. There is a clear need for more longitudinal studies in this area with larger data sets, which correct for multiple testing.

Myalgic Encephalomyelitis: Symptoms and Biomarkers, by LA Jason, ML Zinn, MA Zinn in Curr Neuropharmacol. 2015 Sep 27. [Epub ahead of print]

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Group CBT for CFS

Research abstract:

BACKGROUND:

Meta-analyses have been inconclusive about the efficacy of cognitive behaviour therapies (CBTs) delivered in groups of patients with chronic fatigue syndrome (CFS) due to a lack of adequate studies.

METHODS:

We conducted a pragmatic randomised controlled trial with 204 adult CFS patients from our routine clinical practice who were willing to receive group therapy. Patients were equally allocated to therapy groups of 8 patients and 2 therapists, 4 patients and 1 therapist or a waiting list control condition. Primary analysis was based on the intention-to-treat principle and compared the intervention group (n =
136) with the waiting list condition (n = 68). The study was open label.

RESULTS:

Thirty-four (17%) patients were lost to follow-up during the course of the trial. Missing data were imputed using mean proportions of improvement based on the outcome scores of similar patients with a second assessment. Large and significant improvement in favour of the intervention group was found on fatigue severity (effect size = 1.1) and overall impairment (effect size = 0.9) at the second assessment.
Physical functioning and psychological distress improved moderately (effect size = 0.5). Treatment effects remained significant in sensitivity and per-protocol analyses. Subgroup analysis revealed that the effects of the intervention also remained significant when both group sizes (i.e. 4 and 8 patients) were compared separately with the waiting list condition.

CONCLUSIONS:

CBT can be effectively delivered in groups of CFS patients. Group size does not seem to affect the general efficacy of the intervention which is of importance for settings in which large treatment groups are not feasible due to limited referral.

Randomised Controlled Trial of Cognitive Behaviour Therapy Delivered in Groups of Patients with Chronic Fatigue Syndrome, by Wiborg JF1, van Bussel J, van Dijk A, Bleijenberg G, Knoop H in Psychother Psychosom. 2015;84(6):368-76. Epub 2015 Sep 25

[NB   No objective outcome measures were used e.g. actometers/pedometers, exercise testing, employment data, etc. ]

 

 

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