MS is autoimmune and crohns is autoimmune
Some biologics “unmask” other autoimmune disorders when taken for a different one .
The biologics don’t cause the disease .
Example my kiddo was in humira for crohns when he developed juvenile arthritis
Even though humira is used to treat arthritis
Humira didn’t cause the arthritis
Genetically speaking the genes for certain autoimmune disorders overlap a lot
Similarly others take remicade for crohns but also develop psoriasis or psoriatic arthritis
Having one autoimmune disorder increases the likelihood of more appearing later
crohns is known to have extra intestinal manifestations which can affect the nervous system
Demyelination is not ms but typically means no more anti tnf
Stelara is not anti tnf for what it’s worth ....
From
[URL unfurl="true"]https://academic.oup.com/ecco-jcc/article/10/3/239/2462512[/URL]
