​The Immune System and Sleep
August 29th, 2017, Cort Johnson Source: http://simmaronresearch.com/2017/08/ sleep-reduced-immunity-vicious-circle-mecfsfibromyalgia/
Ed note: This article was sourced from ANZMES Meeting Place 130 (Summer 2017) and has been abridged.
The immune system is vast and incredibly complex and has its own extensive set of regulatory factors, but it itself is regulated by two other systems, the HPA axis and the sympathetic nervous system. Both are involved in the stress response, and both are affected in ME/CFS and fibromyalgia (FM). One – the HPA axis – is blunted in ME/CFS while the other – the sympathetic nervous system – is over-activated.
Poor sleep, it turns out, activates both systems. The HPA axis is generally thought to be blunted, not activated, in the morning in ME/CFS patients, but the sympathetic nervous system (SNS), on the other hand, is whirring away at night (when it should be relaxing) in both ME/CFS and FM. Having our ‘fight or flight’ system acting up at night is probably not the best recipe for sleep!
Sympathetic nervous system activation, in fact, was the only factor in one Australian study which explained the poor sleep in ME/CFS. The authors of a recent FM/autonomic nervous system study went so far as to suggest that going to sleep with FM was equivalent to undergoing a stress test!
Heart rates, muscle sympathetic nervous activation, and other evidence of an activated sympathetic nervous system response made sleep anything but restful for FM patients. In fact, the authors proposed sleep problems could be at the heart of FM.
Many questions have involved the roles
pathogens play in ME/CFS and FM. That’s intriguing given the almost universally poor sleep found in the disorders, and the role recent studies indicate that sleep plays in priming the immune system’s pump to fight off invaders. During sleep, pathogen-fighting immune cells move to the lymph nodes where they search for evidence of pathogens. If pathogens are present, those immune cells mount a furious (and metabolically expensive) immune response.
Metabolism is a big issue in ME/CFS right now, but guess what? Poor sleep also appears to interfere with producing the metabolic reserves our immune cells need to fight off infections.
We often think of inflammation in negative terms, but the pro-inflammatory cytokines our immune cells produce are necessary to fight off invaders. Reductions of a key pro-inflammatory cytokine called IL-6 during poor sleep hampers our immune system’s ability to destroy pathogens.
Disrupted circadian rhythms (sleep/wake cycles) aren’t doing you any good either. Having insomnia or altered sleep patterns (e.g. very late bedtimes) appears to cause deficits in two hormones (growth hormone (GH) and prolactin) produced during early sleep, which enhance T-cell activity and promote pathogen defence. That suggests that anyone with an altered circadian rhythm might want to do their best to get to bed earlier.
While pro-inflammatory cytokine production at night primes the immune system to fight off pathogens, the daytime is a different story. Chronic sleep deprivation is associated with increased daytime levels of several immune and endothelial factors (IL-6, TNF) and endothelial markers (E-selectin, sICAM-1) that are associated with chronic inflammation.
One study found IL-6 levels actually became flipped in sleep-deprived people; they were low at night (thereby hampering their pathogenfighting ability) and high during the day (adding to inflammation). The situation may be even worse if a sleep-deprived person is fighting off an infection.
One study found skyrocketing levels of damaging pro-inflammatory cytokines when sleep-deprived people were given a toxin (LPS) associated with infections. Those damaging cytokines did not show up in healthy people. That suggested that, besides the infection they
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probably weren’t doing too well at fighting off, sleep-deprived people now had inflammation to deal with.
As often happens, women seem to be more affected by immune issues, and it’s no different with sleep. Women appear to be more susceptible than men to inflammation that occurs as a result of poor sleep; women show elevations of pro-inflammatory cytokines the day after getting less than 8 hours of sleep; men show elevations of pro-inflammatory cytokines after getting less than 6 hours of sleep.
Many people with ME/CFS/FM get too little sleep but sleeping more than normal, it turns out, is not good either. People sleeping much longer than normal tend to show the same kinds of elevations of pro-inflammatory cytokines as do people who get too little sleep. The C-Reactive Protein, Sleep, ME/CFS and Fibromyalgia Connection
CRP is associated with a variety of inflammatory states resulting from infection, cancer and stress. Increased levels of the inflammatory marker, C-reactive protein (CRP), are increasingly being associated with sleep disturbance. The CRP- sleep connection is intriguing given Jarred Younger’s preliminary finding of increased CRP levels in a subset of ME/CFS patients, and a recent finding of increased CRP in fibromyalgia (FM).
Those findings might not be so surprising. Ten days or so of partial sleep deprivation in healthy controls caused ‘robust’ increases in CRP levels. In fact, the CRP – poor sleep connection is so robust that simply scoring above 5 on the Pittsburgh Sleep Quality Index (PSQI) strongly suggests that your CRP levels are elevated.
The PSQI is a 19-item self-report questionnaire that evaluates 7 clinically derived domains of sleep difficulties, i.e. quality, latency, duration, habitual efficiency, sleep disturbances, use of sleeping medications, and daytime dysfunction. A huge nurses study (n=10,908) found that nonrestorative sleep – probably the most common sleep issue in ME/CFS/FM – was associated with increased CRP levels, even in these healthy individuals.
The early or innate immune response has long been thought to play a special role in
ME/CFS. This immune response involving NK cells, neutrophils, macrophages and others constitutes the immune system’s first defence against pathogens.
NK cell activity normally hits a low during sleep but then begins to rise. This rise is blunted in sleepdeprived ME/CFS/FM people. Immune cells called monocytes/macrophages, also involved in the early immune response, play a key role in producing chronic inflammation.
ME/CFS isn’t the only condition associated with NK cell problems; depression is as well, and having poor sleep increases your risk of being depressed two-fold. Plus, for reasons not yet understood, if you are having poor sleep and are under considerable stress or are depressed, it’s likely that your NK cells will be considerably less effective when called on to defend the body from invaders.
We know that having a chronic illness increases one’s chances of becoming depressed markedly, but so does poor sleep. In fact Michael Irwin* reports that having insomnia for over a year increases your risk of becoming depressed 14-fold.
That finding is leading some of the more progressive psychologists to focus on preventing or ameliorating sleep problems.
Sleep disturbance also indicates a shift towards a type-2 immune response often seen in ME/CFS and in allergic and autoimmune diseases. Just one poor night’s sleep the night before a person is given a vaccine is enough to markedly reduce the effectiveness of that vaccine. Studies also suggest that poor and fragmented sleep – which is common in ME/CFS/FM – significantly
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increases one’s susceptibility to the common cold. If you’re catching a lot of colds, or if they linger for some time, poor sleep could be one reason why. What To Do?
So poor sleep has a major effect on our immune system’s effectiveness. No studies, unfortunately, have examined the effect of sleep drugs on immune factors.
However, several studies have assessed the efficacy of stress reduction therapies. Dr Irwin notes reports that practices such as cognitive behavioural therapy, Tai Chi and yoga, which dampen down sympathetic nervous system hyper-arousal, can help improve immune function. Tai Chi has even been found to improve vaccine effectiveness and reduce inflammation.
Other studies point to the ability of mindfulness based meditations and/or yoga to reduce the cytokine levels and pro-inflammatory gene expression caused by poor sleep. One remarkable study showed a 50% reduction in CRP levels in insomnia patients after a year of cognitive behavioural therapy.
Poor sleep therefore doesn’t just make you feel tired and irritable; it hits your immune system as well.
Getting better sleep through improved sleep hygiene, supplements (melatonin), calming botanicals (valerian root, L-theanine, passiflora, melissa, scutellaria etc), stress reduction techniques (meditation, mindfulness), and sleep medications might just give your immune system a boost.
* Michael R. Irwin. Annu Rev Psychol. 2015January 3;66:143-172.doi:10.1146/

​The Autoimmune Virus? Groundbreaking EBV Finding Could Help Explain ME/CFS
Cort Johnson April 30, 2018
Viral Mystery 
“I’ve been a co-author in almost 500 papers. This one is more important than all of the rest put together. It is a capstone to a career in medical research,” Harley
I sensed some awe in Ron Davis’s voice as he pushed for more understanding of Epstein-Barr Virus’s effects in ME/CFS during a talk at the Brain Science conference.  Davis is not to my knowledge finding much evidence of EBV reactivation in the severe ME/CFS patient study – a surprise – but he is very interested in what happened during that initial EBV infection, which appears to have triggered chronic fatigue syndrome (ME/CFS) in so many people.
 
A large, complex and very common virus, EBV is responsible for infectious mononucleosis and appears to contribute to numerous autoimmune disorders.
He’s not alone in his “admiration” for the virus. Simmaron’s Advisor, Dr. Daniel Peterson, whose clinical practice and research stemmed from an outbreak in the Lake Tahoe region of Chronic Fatigue Syndrome, has tracked EBV in patients for decades, noting very high titers to EBV and other herpes viruses in subsets of patients.
It’s not surprising that these two important figures have had their eyes on EBV. EBV, after all, is kind of in a league of its own.  An invader of B and epithelial cells, the 50th anniversary of its discovery was recently celebrated with numerous reviews.  Epstein-Barr was discovered in 1966 by Anthony Epstein and Yvonne Barr. It was the first human virus shown to cause cancer. The sequencing of its large genome in 1995 helped launch the genomic era.
One of the more massive and complicated viruses, it’s one of the very few viruses that’s able to avoid elimination: once EBV infects your B-cells, it’s in your body to stay. It’s able to effectively hide from the immune system and reactivate just enough so that when the infected B-cells die it can move on to other cells.
We’re well equipped to ward off EBV when we’re young – it usually produces only minor symptoms – but as our immune systems alter as we age, that changes.  Encountering EBV as an adolescent or adult (infectious mononucleosis, glandular fever)  – as increasingly happens in our germ phobic age – often means months of convalescence as our immune systems struggle to ward off this powerful virus.
The problems don’t stop there. We know that infectious mononucleosis (IM) is a common trigger of ME/CFS but coming down with IM/glandular fever in adolescence has also been shown to increase one’s risk of coming down with multiple sclerosis 2-4 fold and lupus by fifty percent.  Because of EBV’s ability to remain latent in the body, EBV reactivations are a huge problem for transplant patients with compromised immune systems.
The big question concerning EBV is how a virus which has essentially been latent for decades could contribute to serious diseases like MS and lupus. We now may have the answer. Last week, what will probably turn out to be a seminal paper in pathogen research directly showed for the first time how EBV appears to be able to trigger autoimmune diseases later in life and could conceivably play a role in ME/CFS.
The rather hum drum title of the paper “Transcription factors operate across disease loci with EBNA2 implicated in autoimmunity” in the Nature Genetics Journal hardly hinted at the possibilities the paper presents.
Transcription factors operate across disease loci, with EBNA2 implicated in autoimmunity John B. Harley, Xiaoting Chen, Mario Pujato, Daniel Miller, Avery Maddox, Carmy Forney, Albert F. Magnusen, Arthur Lynch, Kashish Chetal, Masashi Yukawa, Artem Barski, Nathan Salomonis, Kenneth M. Kaufman, Leah C. Kottyan & Matthew T. Weirauch. Nature Genetics (2018) doi:10.1038/s41588-018-0102-3
EBV  consists of several proteins of which EBNA-2 is one. EBNA-2 is EBV’s main viral transactivator; i.e. it’s a transcription factor that turns on genes in an infected cell that help EBV to survive. Essentially EBNA-2 allows EBV to hijack a cell’s genetics and put them to its own use.
The study – produced by researchers at Cinncinnati’s Children Hospital – demonstrated that once EBV infects B-cells, it turns on genes that have been identified as risk factors for a boatload of autoimmune diseases.
It turns out that even though the virus is, so to speak, latent; i.e. it’s not replicating – its transcription factor is still active  – altering the expression of our genes. The genes that it affects just happen to be the same genes that increase the risk of developing lupus, multiple sclerosis (MS), rheumatoid arthritis (RA), juvenile idiopathic arthritis (JIA), inflammatory bowel disease (IBD), celiac disease, and type 1 diabetes.  Apparently decades of genetic assault from EBV’s transcription factor can set the stage or at least contribute to many autoimmune diseases.
Chronic diseases are usually caused by a variety of genetic and environmental factors. Because not everyone with these transcription factors comes down with a chronic illness, other factors must play a role. The authors believe, though, that the gene expression changes induced by the virus in the B cells could account for a large number of people with lupus and MS who fall ill.
“In lupus and MS, for example, the virus could account for a large percentage of those cases. We do not have a sense of the proportion in which the virus could be important in the other EBNA2-associated diseases,” Harley
Chronic Fatigue Syndrome and EBV/Infectious Mononucleosis – A Short History
Researchers have been trying to figure out – mostly unsuccessfully- what the heck happens to plunge people with infectious mononucleosis into ME/CFS for quite some time.
 
In fact, infectious mononucleosis/glandular fever was probably the first disease associated with ME/CFS. Studies in the mid-1990’s, including one from the CDC, suggested ME/CFS was, at least in part,  “chronic infectious mononucleosis” or “chronic mononucleosis syndrome“.  Even Stephen Straus penned a paper on the “The chronic mononucleosis syndrome“.
Straus’s small 1989 study reporting high rates of psychiatric diagnoses in ME/CFS patients prior to their becoming ill set a theme in motion which was disproved by two Peter White  ME/CFS IM publications.  White found IM/glandular fever to be a particularly strong trigger of ME/CFS which he concluded was probably responsible for about 3,000 new cases of ME/CFS a year in the U.K.
A 1992 Swedish study began a trend of examining people with ME/CFS during infectious mononucleosis and afterwards in order to try and determine what happened. That study concluded that whatever happened was not due to EBV reactivation.
In 2010 Taylor found reduced peak oxygen consumption during exercise in adolescents with ME/CFS after IM compared to IM patients who had recovered. Broderick’s finding of altered cytokine networks associated with Th17 in ME/CFS patients following IM suggested immune dysregulation had occurred.
Glaser’s 2005 study suggested that an EBV encoded enzyme produced by a non-replicating form of EBV could be producing symptoms in ME/CFS.  Lerner’s 2012 study suggested that antibodies to two EBV produced proteins were commonly present in ME/CFS – suggesting that a prolonged immune reaction to EBV might be occurring in ME/CFS as well.
In 2014 Loebel/Scheibenbogen suggested that ME/CFS patients may be having difficulty controlling the early stages of EBV reactivation.   Loebel’s 2017 follow up study suggested that ME/CFS patients’ immune system might be over-reacting to an EBV produced protein and that autoimmunitymight be involved.
Leonard Jason’s large IM college student study will hopefully provide clues why some people never recover from it. He’s completing data analysis of a study examining college students who came down with infectious mononucleosis and then ME/CFS. So far Jason has found that at least 4-5% of college students come down with IM while at school.
Treatment Implications
Interestingly, several drugs that are available can block some of the transcription factors EBV has inserted into B-cells.  (I was unable to determine what they are.) The authors also hope the study will help spur more efforts to produce an EBV vaccine.
Next For ME/CFS and EBV
Now that we have evidence that EBV/IM contributes to many autoimmune diseases, it’s hard to think that ME/CFS is not somehow involved. Chronic fatigue syndrome is different in that infectious mononucleosis (and other infections) immediately triggers ME/CFS in many people. What we don’t know is if bouts of IM also trigger ME/CFS 5, 10, 15 or more years later as occurs in these other disorders.
Opportunities for Collaboration Open Up
The big question awaiting ME/CFS now is if the abnormal transcription factors associated with the autoimmune diseases in the recent paper are present. The good news is that a study determining that appears to be within reach of an ME/CFS researcher with the technical ability and funds. In an unusual move, the Cincinnati researchers are making the computer code they used available to other researchers.
“We are going to great lengths to not only make the computer code available, but all of the data and all of the results. We think it’s an interesting approach that could have implications for many diseases, so we’re contacting experts on the various diseases and sharing the results and seeing if they want to collaborate to follow-up on them.” Weinrauch
“This discovery is probably fundamental enough that it will spur many other scientists around the world to reconsider this virus in these disorders” Harley
 
They believe EBV will be implicated in many more diseases, and there is already some evidence that it is.  Using the same analytical techniques, they’ve already identified 94 other diseases including many non-autoimmune diseases in which EBV may play a role.
This is one of the few studies in which the researchers are so jazzed by their results that they’ve dropped all pretenses to modesty. The study results need to be validated, but because EBV is so common and is potentially linked to so many autoimmune (and other diseases), it has the potential to rewrite our understanding of how autoimmune diseases arise. The authors fully recognize the potential importance of their finding. The lead author of the study, John Harley, said:
“I’ve been a co-author in almost 500 papers. This one is more important than all of the rest put together. It is a capstone to a career in medical research,” Harley
One of the senior authors of the study stated:
“This same cast of characters is a villain in multiple immune-related diseases. They’re playing that role through different ways, and doing it at different places in your genome, but it’s the same sinister characters. So if we could develop therapies to stop them from doing this, then it would help multiple diseases.” Matthew Weirauch