bookmark_borderLong-COVID’s Similarity to HIV

Persistent viruses are not cleared but remain in specific cells of infected individuals. Persistent infections may involve stages of both silent and productive infection without rapidly killing the host. Diseases caused by persistent virus infections include acquired immune deficiency syndrome (AIDS), AIDS-related complexes, chronic hepatitis, subacute sclerosing panencephalitis (chronic measles encephalitis), chronic papovavirus encephalitis (progressive multifocal leukoencephalopathy), spongioform encephalopathies (caused by prions), several herpesvirus-induced diseases, and COVID-19. The mechanisms by which persistent infections are maintained involve both modulation of virus and cellular gene expression and modification of the host immune response.

COVID has been found to persist for months in individuals even if their case was mild. The virus continues to infect multiple organs including the brain. The U.S. National Institutes of Health said they found the pathogen is capable of replicating in human cells beyond the respiratory tract and can infect all organs.

There are many questions about Long-COVID (also known as Long Haulers Syndrome.)

Long-COVID is the condition most people develop after recovering from the SARS-CoV-2 virus. Between 40 and 70% of recovered COVID cases report lingering symptoms, but it is quite likely 99.9% of recovered individuals have silent conditions. COVID-19 makes a multitude of changes to the human genome. Some of the changes result in noticeable symptoms, such as, brain fog, fatigue, soreness, night sweats, diarrhea, and loss of taste. There are also many changes to the genome that may go unnoticed, such as, an increase risk of cancer, rogue antibodies, and blood clotting.

The epigenetic changes that cause Long-COVID are very similar to having HIV.

The Journal Nature reports in the article HIV infection alters the human epigenetic landscape, “Early in 2010, a study on the DNA methylation status of B lymphoma confirmed that HIV infections may induce novel epigenetic changes, including DNA methylation status alteration of specific functional sites.”

“Immune dysregulation during HIV infection can increase anemia risk through red blood cell destruction (hemolysis) or ineffective red blood cell production,” according to BMC Infectious Diseases. This is similar to symptoms in some Long-COVID patients. Long-COVID is known to result in a variety of blood issues.

“HIV enters its genetic information into helper T cells to make copies of itself. When this happens, the helper T cells die. This severely disrupts the immune response. Low levels of helper T cells mean killer T cells and other white blood cells do not receive as much information about pathogens in the body,” as reported in Medical News Today. Long-COVID is also suspected of interfering with T cells and the immune system. Long-COVID causes an upregulation in IDO. Indoleamine 2,3-dioxygenase (IDO) is an immune checkpoint molecule in the sense that it is an immunomodulatory enzyme produced by alternatively activated macrophages and other immunoregulatory cells. IDO is known to suppress T and NK cells, generate Tregs and myeloid-derived suppressor cells, and also supports angiogenesis.

In December 2021, typical seasonal viruses’ severity was up suggesting recovery from COVID results in a compromised immune system. T cells may lose effectiveness against any pathogen. It is estimated half of the U.S. population has had a COVID infection. Hospitals are seeing a sharp rise in Flu, RSV, and other viral infections. It is also likely infants and younger children are contracting the viruses due to their parents compromised immune systems.

The epigenetic changes caused by both Long-COVID and HIV compromise the immune system.

The study SARS-CoV-2 infection and persistence throughout the human body and brain examines COVID living in people for many months after their initial illness.

“This is remarkably important work,” said Ziyad Al-Aly, director of the clinical epidemiology center at the Veterans Affairs St. Louis Health Care System in Missouri, who has led separate studies into the long-term effects of COVID-19. “For a long time now, we have been scratching our heads and asking why long COVID seems to affect so many organ systems. This paper sheds some light, and may help explain why long COVID can occur even in people who had mild or asymptomatic acute disease.”

WHAT WE KNOW ABOUT Long-COVID
* Epigenetic Modifications (Changes to DNA)
* Change in Cell Fate
* Tryptophan Deficiency
* Dysfunctional Kynurenine Pathway
* Neurological Damage
* Down Regulating NAD+
* Up Regulating IDO
* Rogue Antibodies
* Change in Pancreas Cell Function (Down regulation of Insulin)
* Increased Risk of Cancer
* Blood Clotting — This unusual clotting may cause different complications, including organ damage, heart attack and stroke.

COVID in Your Genes
COVID: The Natural Immunity Myth

More COVID-19 Research

bookmark_borderOmicron and Other COVID Variants / the Long Term Pandemic

COVID and Cats:
A scientist friend called me last night… wanted to make sure I stocked up on enough masks and supplies for the next round featuring Omicron. We got to talking about severity of variants and what the most likely scenarios are:
1) the virus stays for a prolonged period in an unvaccinated immune compromised individual
2) the virus jumps back into animals and mutates before jumping back into humans
His theory is cats are a reservoir for SARS-CoV-2. And, that cats are spreading COVID to mice and deer… and back into humans. Some studies have shown 20-50% of cats that belong to owners that have had COVID develop COVID. Studies have also found that cats can transmit the virus to other cats. The risk is especially great for pets that share a bed with their owner.

Some other things we discussed:
* the pandemic is going to go on for years
* there is no natural immunity to Omicron
* there may be no immunity from vaccines to Omicron
* the severity of Omicron will take some time to determine… since we don’t know how much immunity / less severe symptoms vaccines may offer, yet. There is some possibility that prior infection may offer some protection to severity, but that is unlikely.
* N95 masks and social distancing offer the best protection to all variants of COVID
* we do not fully understand the long term effects of COVID. Until we do, avoid contracting the virus… and probably after we do understand, it will become clear the reduction in life expectancy and quality of life

bookmark_borderOmicron: What We Know About the COVID-19 Variant

We’re starting to find out more about Omicron:
1)”Previous infection used to protect against Delta but now with Omicron that doesn’t seem to be the case,” said Anne von Gottberg, microbiologist at South Africa’s National Institute for Communicable Diseases.”
2) risk of breakthrough vaccination is also much higher. Out of 600 fully vaccinated travelers from South Africa, 61 tested positive for COVID. 16 of those were Omicron.
3) a much higher percentage of 20-30 years are being hospitalized
4) an alarming percentage of children under 2 are being hospitalized.
5) the Omicron variant has become dominant in South Africa. Cases of COVID have gone from 200/day, to 400, to 1,000 to 2,000, to 4,000, to 8,000, to over 11,000/day in as many days.
Remember, when you hear of cases being “mild”, that means mild for COVID (eg not hospitalized). All of the cases I’ve studied have been symptomatic individuals that are fully vaccinated.

Omicron Update December 9, 2021
Omicron Update:
* Pfizer says the booster offers protection
* Pfizer says 4th dose may be required
* South Africa says Pfizer offers 1/40th the protection as Delta
* Reinfection is 3 times more likely than with Delta
* South Africa cases are up 255% in a week
* 4x’s more transmissible than Delta
* UK cases could exceed 1 million by the end of this month
* typical seasonal viruses’ severity is up… suggesting recovery from COVID results in a compromised immune system. T cells may lose effectiveness against any pathogen

“In other words, Omicron is spreading in highly immune populations as quickly as the original virus did in populations with no immunity at all. If this holds and is left uncontrolled, a big Omicron wave lies ahead—bigger than we would have expected with Delta. Cases were already surging ahead of winter. The U.S. already had a too-low vaccination rate. And now Omicron threatens to eat away at the immunity we thought we had.”

bookmark_borderLong-COVID: What We Know About Long Haulers Syndrome

COVID=19
by Daniel Brouse
August 25, 2021
help@membrane.com

Post Acute Covid Syndrome 19 (PACS19), long-COVID, and Long Haulers Syndrome are names for the condition that an individual has after recovering from the SARS-CoV-2 virus. Long-COVID is actually a combination of several conditions and syndromes including changes to your genetics, an accelerant to aging, and the persistence of the virus in multiple organs for long periods of time.

The CDC Panel Report Long COVID Panel Survey found:

* 81% of adults with ongoing symptoms of COVID lasting three months or longer — or four out of five adults — are experiencing limitations in their daily activities compared to before they had the virus. (Economic implications include work force participation and long-term health care costs.)

* Young adults between ages 18 and 29 had the highest share of people currently with long COVID who have trouble performing daily tasks, at 86.3%. What will the long-term costs and quality of life be when these people are in their 50’s,60’s, and if they get to live into their 70’s?

There are over 60 proteins involved in the epigenetic response to COVID. So far out of these 60 proteins, three long-COVID epigenetic syndromes have been identified. There are likely many more. (The epigenetic changes are in addition to the organ damage caused by the virus.)

COVID-19 also causes other long term damage that we are still discovering.

Vaccines Help Prevent Secondary Complications
A study shows you are less likely to develop long-COVID Myocardial Infarction and Ischemic Stroke after a COVID-19 Infection if you ARE VACCINATED. Many people may not even know that COVID causes an increased risk of thrombosis. Vaccines can prevent secondary complications.

Association Between Vaccination and Acute Myocardial Infarction and Ischemic Stroke After COVID-19 Infection (Vaccines Help Prevent Long-COVID Complications)

Rogue Antibodies
Autoantibodies are antibodies (immune proteins) that mistakenly attack a person’s own healthy tissues and organs. A study published in Nature found “rogue antibodies involved in almost one-fifth of COVID deaths. The self-targeting antibodies attack type 1 interferons that play a key role in fighting infection. Antibodies that turn against elements of our own immune defences are a key driver of severe illness and death following SARS-CoV-2 infection in some people, according to a large international study. These rogue antibodies, known as autoantibodies, are also present in a small proportion of healthy, uninfected individuals — and their prevalence increases with age, which may help to explain why elderly people are at higher risk of severe COVID-19.”

Up to three percent of the population already has faulty genes that create these autoantibodies. Of those between the ages of 18 and 69, 0.18% had existing autoantibodies against type 1 interferon. “Autoantibodies were present in around 1.1% of 70- to 79-year-olds, and 3.4% of those over the age of 80.”

A follow up study, “New-onset IgG autoantibodies in hospitalized patients with COVID-19,” found “Coronavirus Disease 2019 (COVID-19), caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) infection, is associated with many different clinical features that are commonly found in autoimmune diseases, including arthralgias, myalgias, fatigue, sicca, and rashes. Less common manifestations of autoimmunity have also been observed in COVID-19 patients, including thrombosis, myositis, myocarditis, arthritis, encephalitis, and vasculitis. These clinical observations, and the increasing proportion of “recovered” patients with persistent post-COVID-19 symptoms (so-called “long haulers”, or “long COVID”) suggest that inflammation in response to SARS-CoV-2 infection promotes tissue damage in the acute phase and potentially some of the long-term sequelae. A subset of autoantibodies targeting traditional autoantigens or cytokines develop de novo following SARS-CoV-2 infection.”

“The team also found that individuals with genetic mutations that disrupt the activity of type 1 interferons are at higher risk of life-threatening disease” suggesting COVID causes changes to the genes resulting in the creation of rogue autoantibodies.

In a study of healthcare workers, all had persistent autoantibodies, including ones that can cause chronic inflammation and injury of the joints, skin and nervous system. “We would not normally expect to see such a diverse array of autoantibodies elevated in these individuals or stay elevated for as long six months after full clinical recovery,” said Susan Cheng of the Cedars-Sinai Smidt Heart Institute in Los Angeles. (As reported in Paradoxical sex-specific patterns of autoantibody response to SARS-CoV-2 infection)

“We don’t yet know how much longer, beyond six months, the antibodies will stay elevated and/or lead to any important clinical symptoms,” Cheng said. “It will be essential to monitor individuals moving forward.” The team is investigating autoantibody elevations and their relationship to persistent symptoms in people with long-COVID.

NAD+ Deficiency
COVID both increases the breakdown of NAD+ and decreases the production of NAD+. “NAD regulates the inflammatory response in immune and non-immune cells through Sirtuins. Epigenetic regulation of histones and non-histone proteins is induced by sirtuins and is essential for the development, reprogramming, and differentiation of the immune system and its related pathologies. A deregulation of the NAD+ levels has been associated with metabolic diseases and aging-related diseases, including neurodegeneration, defective immune responses, and cancer.” — NAD-immune-system

The NAD+ deficiency results in a compromised immune system. The body can not properly metabolize vitamins nor mount a proper immune response. The NAD+ deficiency also resembles an autoimmune disease where the immune system appears to be attacking a healthy body. Without NAD+ regulating the immune system, the immune response becomes dysfunctional.

Though there is no cure for the NAD+ Deficiency Syndrome (CISP — COVID-19 Induced Secondary Pellagra), the symptoms can be treated with Niacin (Nicotinic Acid).

Upregulation of IDO
Indoleamine 2,3-dioxygenase (IDO) is an immune checkpoint molecule in the sense that it is an immunomodulatory enzyme produced by alternatively activated macrophages and other immunoregulatory cells. IDO is known to suppress T and NK cells, generate Tregs and myeloid-derived suppressor cells, and also supports angiogenesis.

Memory T cells are crucial for the immune system to remember how to fight pathogens. IDO is also related to the viscosity of body fluids and membrane function. Brain fog, dizziness, tinnitus, ear aches, vertigo, and pressure in the ears are some of the symptoms associated with epigenetic changes in the upregulation of Indoleamine 2,3-dioxygenase.

Dr. Ade Wentzel said, “The epigenetic upregulation of IDO will determine the amount of quinolinic acid. Quinolinic acid comes from the kynurenine pathway. If the viscosity of the whole middle ear is increased then the ability to equalize will be less… same as having a cold. So, the ear isn’t equalizing correctly on increasing pressure. The same as when you land in a plane. If the viscosity in the semicircular canals is increased, the otoliths may well be lagging causing the vertigo. The otoliths usually “Float” in the semicircular canal and trigger tiny sensory hairs that allow you to detect position.”

Coronavirus Transforms Pancreas Cell Function
When COVID infects cells, it impairs cell activity and can also change their function. When insulin-producing beta cells in the pancreas become infected with the virus, they produce much less insulin than usual, and also start to produce glucose and digestive enzymes. “We call this a change of cell fate,” said study leader Dr. Shuibing Chen, who described the work in a presentation at the annual meeting of the European Association for the Study of Diabetes.

It is not clear whether the changes are long-lasting, or if they might be reversible, the researchers reported in Cell Metabolism, “SARS-CoV-2 infection induces beta cell transdifferentiation“. “Single-cell RNA sequencing and immunostaining from ex vivo infections confirmed that multiple types of pancreatic islet cells were susceptible to SARS-CoV-2, eliciting a cellular stress response and the induction of chemokines. Upon SARS-CoV-2 infection, beta cells showed a lower expression of insulin and a higher expression of alpha and acinar cell markers, including glucagon and trypsin1, respectively, suggesting cellular transdifferentiation. Trajectory analysis indicated that SARS-CoV-2 induced eIF2-pathway-mediated beta cell transdifferentiation, a phenotype that could be reversed with trans-integrated stress response inhibitor (trans-ISRIB). Altogether, this study demonstrates an example of SARS-CoV-2 infection causing cell fate change, which provides further insight into the pathomechanisms of COVID-19.”

ALSO SEE: COVID: Insulin Reduction, Diabetes, High Cholesterol, Heart Disease and Stroke

Increased Risk of Cancer
In the case of cancer and tumor suppression, COVID chooses people that have reduced P53 (the tumor suppression gene.) It is also possible that COVID further reduces functional P53 genes. “Mutations in p53 are found in most tumor types, and so contribute to the complex network of molecular events leading to tumor formation.” — The p53 tumor suppressor protein

COVID also suppresses NK cells. “A type of immune cell that has granules (small particles) with enzymes that can kill tumor cells or cells infected with a virus. A natural killer cell is a type of white blood cell. Also called NK cell and NK-LGL.” — Natural Killer Cell

A study “Cancer Prevention with Resistant Starch” (conducted over the last 30 years) shows that resistant starch reduces your risk of cancer. The resistant starches produce good bacteria that reduces a type of acid that promotes changes to your DNA. The changes to your DNA increase the risk of many types of cancer. The discovery may also explain in part why COVID increases your risk of cancer. COVID is known to destroy good gut bacteria.

Permanent Organ Damage

“Dr Betty Raman, from the University of Oxford and one of the lead investigators on the study, says it is clear that those living with long-COVID symptoms are more likely to have experienced some organ damage.”

The biggest impact was seen on the lungs, where MRI scans were 14 times more likely to show abnormalities. Scans were also three times more likely to show abnormalities in the brain, and twice as likely in the kidneys, among people who had severe COVID.

The article Multiorgan MRI findings after hospitalisation with COVID-19 in the UK (C-MORE): a prospective, multicentre, observational cohort study was published September 22, 2023 in The Lancet Respiratory Medicine.

After hospitalisation for COVID-19, people are at risk of multiorgan abnormalities in the medium term. Our findings emphasise the need for proactive multidisciplinary care pathways, with the potential for imaging to guide surveillance frequency and therapeutic stratification.

ABOUT LONG-COVID
Long-standing multiorgan impairment following SARS-CoV-2 infection has been a major concern for individuals recovering from severe disease and is thought to be caused by a multitude of factors, including direct viral cytotoxicity, chronic inflammation, ischaemic injury, acute reactivation of other viruses, metabolic derangements, and acute treatment effects (especially invasive ventilation). Numerous reports of delayed organ complications such as myocarditis, stroke, and pulmonary emboli have led to speculations that the multiorgan dysfunction caused by COVID-19 might be responsible for impaired recovery and ongoing symptoms in individuals, a condition referred to as long COVID.

 

Long COVID Update:3 Years of Living With It

COVID-19 Chronic Conditions

COVID in Your Genes

MORE ON COVID: COVID-19 / SARS-CoV-2 / Novel Coronavirus