Stanford Study Pinpoints Cause of Covid Vaccine-Linked Myocarditis and a Possible Fix

Epoch Times ^ | 12/12/2025 | Marina Zhang

[SeekAndFind]

Myocarditis from COVID-19 vaccines is caused by two chemicals acting together, according to a new Stanford study published on Wednesday.

“As a cardiologist, we get asked all the time, ‘How exactly does [the vaccine cause myocarditis?]’” Dr. Joseph Wu, the study’s lead author and director of the Stanford Cardiovascular Institute, told The Epoch Times.

“We thought it was a very important scientific and clinical question to spend resources [on] and tackle.” When an mRNA vaccine is given, immune cells release a surge of cytokines called CXCL10 and IFN-gamma, which damage heart muscles and cause immune cells to enter the injury site.

The study was done in human cells and mice.

Previous studies have also shown these two chemicals to be high in people injured by the mRNA vaccines.

A 2-Step Process

Myocarditis from the vaccine is caused through a two-step process, the study authors wrote.

When administering the Pfizer and Moderna vaccines to human cells, the first immune cells to encounter the vaccine, called macrophages, release CXCL10 to recruit more immune cells to the area.

In the second phase, more specialized cells come to the area, releasing IFN-gamma in response, and it’s these two chemicals together that directly injure heart cells. This damage encourages more inflammatory cells to enter the heart, causing myocarditis.

Wu said that the immune cells are likely releasing these two chemicals because they detect foreign mRNA from the vaccines.

Mice given the vaccine experience heart damage, a rise in these two chemicals, as well as higher levels of inflammation in other organs, such as the liver and kidneys.

Wu noted that they had to use higher concentrations of the mRNA vaccine than what a person would get per dose in the study. Therefore, the reactions may be more severe than what is observed in real life.

“These two cytokines cause inflammation to the blood vessels. They could cause inflammation to the heart,” Wu said, adding that they can also cause inflammation in other areas like the muscles and joints, which may be why some people experience joint and muscle pains.

He said that myocarditis from COVID-19 vaccinations is rare and that the viral infection is of greater concern.

Soy as Prophylactic

Giving mice a dose of genistein—a natural plant compound from soybeans—ahead of vaccination blocked the heart damage from happening while still allowing the vaccine to do its job.

Mice that were given genistein continued to release antiviral signals in their body when given the vaccine, which indicates that their immune system recognized the vaccine.

Genistein is anti-inflammatory and acts like estrogen inside the body. Since myocarditis primarily affects young men, Wu said that they thought estrogen, a female hormone, may be protective against myocarditis.

“But we can’t be giving estrogen to boys, right? So here we give genistein, which is a weak phytoestrogen—plant-based estrogen, very weak.”

Still Searching for the Root Cause

The study only explored one potential cause of myocarditis from COVID-19 vaccinations, Wu said, which is myocarditis caused by an inflammatory response to the vaccine.

Other studies have also speculated on other causes of myocarditis from vaccination. One potential reason is autoimmunity, which occurs when the body’s immune system mistakenly attacks itself. Because the spike protein produced by the COVID-19 mRNA vaccine has certain features that are the same as those in human proteins, when the immune system attacks these spike proteins, some of the antibodies it produces may also attack the body’s own tissues. This can lead to attacks on the heart and result in myocarditis.

Further research has also speculated on other causes of myocarditis from vaccination, such as spike proteins made from the vaccine causing damage or hormone-driven reasons.

Cardiologist Dr. Peter McCullough said that the study did not look into why mRNA vaccines could cause the release of chemicals, such as the presence of mRNA and spike proteins, which he considers to be the root cause of myocarditis from vaccinations.

Previous studies have detected the presence of mRNA and spike proteins in the heart tissues of people who suffered from myocarditis post-vaccination.

[fruser1]

spike protein produced by the COVID-19 mRNA vaccine has certain features that are the same as those in human proteins

Put this one in the "no shit, Sherlock" category.

the mRNA confuses your own cells to produce a spike so your immune system attacks YOU, basically risking the production of an autoimmune disorder like type-I diabetes.

[Jane Long]

Ha! So NOW they tell everyone this???

Don't you find this appalling, CM??

Exactly the warnings given, by MANY right here, over FOUR YEARS ago.

By ones who were endlessly mocked and berated by the KNOWN FR $hot $hilss and d@m FRoctors.

The nerve of these monsters to now slither out and ADMIT that these horrid jabs cause myocarditis.

And, the nerve of ANY BigPharma tool claiming that ‘myocarditis’ isn't harmful.

Sickening!!!

Where do these (mostly young men ... gee, of marrying and reproductive age) go to get their excellent health back???

[JPG]

Prolonged use of zinc may require added copper.

Never take them together as they'll cancel each other out. I take copper AM and zinc PM.

[goodnesswins]

Or you take your supplements on the sly like I did when I was hospitalized for 3 nights. So sorry about your friend.

[ConservativeMind]

I have a coworker who got an early form of the smallpox vaccine and had problems from that, to this day.

He was ordered, then they said they never should have done that.

[logi_cal869]

*sigh*

This follows predictable leftist logic which portends that a clump of live cells remains just a clump of cells until it meets manipulative criteria.

[wjcsux]

“ My 34 year old nephew was murdered by the pharma companies.
He died from myocarditis. I have a cousin who was the only one in his family to take the deadly vaccine. His 3 sisters and brother did not. He now has ALS. No one on his mothers side or his dads side ever had this. He was a big supporter of vaccines. I believe it was some combination of them that caused his first born to be mentally and physically crippled. His 3 other sons were not. I wonder if they were not given all the many dozens of shots and what happened.”

My sister and nephew were my only family members who were fully vaccinated, both died from heart failure. The rest of us are just fine.

[gleeaikin]

My friend fainted on a hot day in her doctor’s office and was taken straight to the hospital. They never let her have her supplements brought to her and as a sick colored person she was intimidated and afraid to get her granddaughter in trouble. Thus as I said before, get a legal paper that allows your freedom of supplement use.

[goodnesswins]

How terrible. Getting a doc these days to go against hospital docs might be difficult, tho...even with papers. How terrible for your friend. PS...my hub snuck them in to me.

[Pelham]

The smallpox vaccine has always had the same high rate of myocarditis. And it remains the myocarditis / perdicarditis champ despite the meager attempts by new upstart vaccines to take its crown.

No one cared about smallpox vaccine causing myocarditis in the past because we didn’t have the vaccine scare industrial complex that we now enjoy thanks to the internet.

And no one cares about it now because that same vaccine scare industrial complex is only interested in scaring you about Covid vaccines.

Telling you that the smallpox vaccine is “worse” is definitely not in their interest. They also aren’t telling you that no one cared about myocarditis before because it’s inflammation, not infection, and is very rarely dangerous.