U B Tough said...
pb4 said...
Keep in mind, those that are on biologic's with their CD may not show MAP in their system as the biologic's seem to "hide" the MAP infection, doesn't mean it's not there though.
Oh sugar. Did not know that. Although I did mention to the doc doing the testing.Yup! Unfortunately...taken from FAQ number 10 from the link I posted in my earlier reply to the OP....
Immunosuppressants used to treat Crohn’s Disease include Azathioprine, Methotrexate and 6-Mercaptopurine as well as the newer ‘biological’ or ‘anti-TNF’ agents Infliximab (Remicade) and Adalimumab (Humira). If these were given to someone with an infection like tuberculosis, they would make the disease worse. Hence checking for latent (inactive) TB is an essential precaution before giving biological agents. So it’s not unreasonable to presume that the same would happen with immunosuppressants and MAP. But as so often with MAP, it turns out to be the opposite of what you would expect...
In the case of Azathioprine, Methotrexate and 6-Mercaptopurine, independent research by 2 groups in the USA has shown that all three of these drugs have a direct anti-MAP action1,2. They do not kill MAP but they do retard its growth and activity. Some of the benefit from these drugs is probably due to this slow anti-MAP action and is one of the reasons they take 2-3 months to work in Crohn’s disease.
TNF-alpha (tumour necrosis factor alpha) is a protein produced by cells of the immune system, to help fight infections by temporarily increasing inflammation in the affected area. The anti-TNF agents work by binding to TNF-alpha anchored on the surface of inflammatory cells involved in the Crohn’s disease inflammation. This results in the death of some of the inflammatory cells, many of which will be harbouring MAP bacteria which are likely to be killed at the same time. For this reason, treatment with anti-TNF drugs has a significant anti-MAP action too