New Study Proved Cardiac Side Effects Of mRNA Vaccines?!

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Did a new study just demonstrate the cardiac side effects of Pfizer and Moderna mRNA vaccines for COVID-19?!

Take a look at the viral claim, and find out what the facts really are!


Claim : New Study Shows Cardiac Side Effects Of mRNA Vaccines!

Some people are sharing a new study in the British Journal of Pharmacology, suggesting / claiming that it shows the cardiac side effects of mRNA vaccines.

Dr. Aseem Malhotra : New peer reviewed mRNA vaccine study in rats extremely disturbing if not surprising

‘ .. in isolated cardiomyocytes, both mRNA-1273 and BNT162b2 induce specific dysfunctions that correlate pathophysiologically to cardiomyopathy’

Chief Nerd : “Key Results: After 48 h, expression of the encoded spike protein was detected in ventricular cardiomyocytes for both mRNAs.”

Dr Dean Patterson : Here is another thought provoking study showing Cardiac inflammation after covid mRNA vaccination. Shall we now stop vaccinating people and take these safety concerns seriously?
@FDA @MHRAmedicines @pfizer @moderna_tx

Cardiac side effects of RNA‐based SARS‐CoV‐2 vaccines: Hidden cardiotoxic effects of mRNA‐1273 and BNT162b2 on ventricular myocyte function and structure – Schreckenberg – British Journal of Pharmacology – Wiley Online Library

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Truth : Study Showed mRNA Vaccine Effect On Rat Cardiac Cells

Let’s take a look at what we know about this new study, and see what the facts really are!

Fact #1 : Study Was Peer-Reviewed

First, I should point out that this is a peer-reviewed study that was published in a reputable journal – the British Journal of Pharmacology. So it’s not like the “Belgian study” that allegedly showed that the Pfizer mRNA vaccine causes turbo cancer.

That said – the pre-publication peer review is only the first step in scientific review process. After its publication, it is still subject to post-publication peer review, including verification and further research by other scientists.

Fact #2 : Study Is Not Available Publicly

I should also point out that the study itself is hidden behind a paywall, with only a brief abstract available publicly. This is important because without knowing the details, it is simply impossible to know the accuracy or significance of this study. As they say – the devil is in the details.

Fortunately, it appears that Dr. Ralf B. Lukner MD PhD has access to the study itself, and has provided some important insights into this study. So this fact check will rely on both his insights, and what’s available publicly.

Fact #3 : Study Was Conducted On Rat Cardiac Cells

According to the public abstract of the study, it was conducted on isolated rat cardiomyocytes (RCm) over a 72 hour period.

Basically, the study did not involve any human beings or even live animals. Instead, it used heart muscle cells from a rat.

In real life, the COVID-19 vaccines are injected into the deltoid muscle of a human being, and not into the heart of a rat. In real life, heart muscle cells also do not soak in a bath of hyper-concentrated  COVID-19 vaccine for 3 days.

So it is important to understand that this is not at all representative of what actually happens in a human being, or even a live rat…

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Fact #4 : Study Used Very High Vaccine Doses

According to Dr. Lukner, the study used very high doses of the Pfizer and Moderna mRNA vaccines:

  • Pfizer : 1 μg/mL
  • Moderna : 10 μg/mL

In contrast, human beings – which have 36 trillion more cells, only receive 30 μg of the Pfizer vaccine, or 100 μg of the Moderna vaccine.

By my estimate, the doses used in this study are far beyond what any human being will ever receive in a million lifetimes:

  • Pfizer : 1.2 trillion vaccine doses
  • Moderna : 3.6 trillion vaccine doses

As any scientist can tell you – the dose makes the poison. At sufficiently high doses, all chemicals – including water and oxygen – can be toxic.

Fact #5 : It Was A Laboratory Study

I should also point out the salient fact that it was a laboratory study (also known as an in vitro study), not a clinical study.

In-vitro studies are important, but they cannot be extrapolated to make any conclusion about what actually happens in a human body.

For example, laboratory studies showed that hydroxychloroquine and ivermectin have an inhibitory effect on the SARS-CoV-2 virus; but once tested in actual human beings – they were shown to have no clinical benefit.

In other words – what happens in a laboratory, may not happen in an actual human being.

Recommended : Did CDC Say COVID Vaccines Cause AIDS + Cancer?!

In silico in vitro in vivo clinical importance

Fact #6 : Nothing Happened Until Spike Proteins Were Created

Interestingly, the study authors pointed out that both Pfizer and Moderna mRNA vaccines did not affect the rat cardiac muscle cells in any way, until they started producing the spike protein after 48 hours of soaking in a bath of vaccine.

Assuming that this can be replicated by other scientists, this suggests a couple of things:

  • the rat cardiac muscle cells are not affected by the presence of the mRNA vaccine itself
  • the rat cardiac muscle cells only “malfunctioned” after they created the spike proteins

Is it therefore possible that the rat cardiac muscle cells might be malfunctioning because they were overwhelmed by the extremely high vaccine doses into excessively creating the spike proteins, instead of performing their normal functions?

Is it also possible that the spike proteins caused morphological changes (shape, size, texture, etc.) that disrupted the rat heart muscle cells’ ability to contract properly?

Needless to say – MORE research is needed before any conclusion can be made about the mRNA vaccine’s cardiotoxic effects in rats, never mind any potential cardiotoxic effects in actual human beings.

Fact #7 : COVID-19 Infections Produce Far More Spike Proteins!

It is important to point out that unlike the SARS-CoV-2 virus, COVID-19 vaccines do not multiply and can only induce a limited number of cells to produce the spike protein. And again – the vaccines are injected into the arm, and not the heart.

The SARS-CoV-2 virus, on the other hand, will spread through the body, creating spike proteins in a multitude of cells. If the spike proteins are the problem, which this study suggests, then a COVID-19 infection poses a far greater threat than the COVID-19 vaccine.

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Fact #8 : COVID-19 Infections Cause Cardiac Problems

Finally, I should point out that COVID-19 infections are known to cause heart problems, even in people who recover.

The SARS-CoV-2 virus does not only cause myocarditis, it can also damage heart muscle tissue directly. COVID-19 infections have also been shown to cause serious ventricular arrhythmias, and even inflame the coronary arteries.

The mRNA vaccines for COVID-19 are already known to cause pericarditis and myocarditis in young males, but this is a relatively rare cardiac side effect and generally milder than if caused by COVID-19 infections.

That’s why health authorities across the world continue to advocate getting the COVID-19 vaccines. After all – the risk of getting myocarditis from multiple doses of the vaccines are much lower than the risk of getting myocarditis from a single COVID-19 infection!

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Dr. Adrian Wong has been writing about tech and science since 1997, even publishing a book with Prentice Hall called Breaking Through The BIOS Barrier (ISBN 978-0131455368) while in medical school.

He continues to devote countless hours every day writing about tech, medicine and science, in his pursuit of facts in a post-truth world.


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