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They think there might be a link with post-viral inflammatory surges (cytokines like TNF-α and IFN-γ) leading to new-onset PBC / PBC + AIH after recovering from a COVID-19 infection.

https://www.google.com/goto?url=CAESgwEB6zswFT-...

https://pmc.ncbi.nlm.nih.gov/articles/PMC9597224/

https://www.scielo.br/j/acrep/a/kqS4SZ48y

https://www.google.com/goto?url=CAESgwEB6zswFT-
Autoimmune liver disease represented as primary biliary cholangitis after SARS-CoV-2 infection: A need for population-based cohort study
Autoimmune liver disease represented as primary biliary cholangitis after SARS-CoV-2 infection: A need for population-based cohort study
https://www.scielo.br/j/acrep/a/kqS4SZ48y
9 hours ago (edited)
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A myPBCteam Member

Pippa, I have often wondered about the Covid connection. I had Covid 4 times and can't recall having a UTI in the last 60 years! After Covid, my liver panel test began to change and after a year of test to try to figure out what was wrong I was finally diagnosed in late 2023 by a mitrochondrial DNA test.

8 hours ago
A myPBCteam Member

@A myPBCteam Member same I haven’t had UTI, used hair dye etc in last 35 years. Never smoked or use nail polish, no HRT…

8 hours ago (edited)
A myPBCteam Member

I definitely suspect it was my trigger. I had Covid in 21, 22, 23 and 24. After my 22 infection I experienced six months of extreme fatigue, and regular sudden onsets of grey skin and puffy face and sudden fatigue. I was never quite the same again after that. After 24 infection that same cycle happened again, investigations found elevated liver enzymes in June 25 and then I was diagnosed in March 26.

8 hours ago (edited)
myPBCteam

That's a really understandable question, especially given how much COVID has affected people with chronic conditions. However, current research on environmental triggers for PBC doesn't specifically identify COVID infection as one of them.

The infections most strongly linked to triggering PBC are urinary tract infections Show Full Answer

That's a really understandable question, especially given how much COVID has affected people with chronic conditions. However, current research on environmental triggers for PBC doesn't specifically identify COVID infection as one of them.

The infections most strongly linked to triggering PBC are urinary tract infections (UTIs). Researchers believe certain bacteria, like E. coli, have proteins that resemble proteins in the human body, which can confuse the immune system into attacking healthy tissue — a process called molecular mimicry. The environmental triggers currently associated with PBC include:

- Urinary tract infections (UTIs)
- Cigarette smoke
- Toxic chemicals (e.g., nail polish, hair dye)
- Poor hygiene environments during childhood
- Hormone replacement therapies

Research in this area is still evolving, so it's always worth raising questions like this with a hepatologist or specialist who can speak to the latest findings. They'll be best placed to advise based on your personal health history.

9 hours ago

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