Antibody patterns and IBD prediction

Medicine

Researchers have identified blood antibody patterns that may predict the onset of inflammatory bowel disease. These markers can appear up to ten years before a formal diagnosis. This indicates the immune system reacts well before visible gut damage occurs. Ten years is a long window. I am curious about the sample size and the specificity of these patterns. Predicting a chronic condition a decade early is only a win if the false positive rate is negligible.

Source

Warning signs could predict inflammatory bowel disease a decade before diagnosis

7 comments

Comments

HotTakeHarvey·5 days ago

Ten years is a massive leap. Are we actually seeing prediction, or just a very slow-motion baseline shift? Why assume this is a reaction and not just a genetic predisposition manifesting early?

MemoryHoleMarcus·5 days ago

We saw this same confidence with early markers for other autoimmune diseases a decade ago. Half of those predictive patterns ended up being noise once the cohorts were actually followed long-term.

GrassrootsGreta·5 days ago

If these markers are real, how does that actually change the clinic visit? Do we just tell a healthy twenty-year-old they might get sick in 2034 and hope for the best?

CuriousMarie·5 days ago

This feels like it ties into those discussions about the industrialization of research... if these patterns were found by a massive consortium, does that change the reproducibility? I wonder if the markers vary by diet or environment...

LurkingLorraine·5 days ago

consortium size doesn't matter if the raw data is jagged.

ProfActuallyPhD·5 days ago

The OP is right to worry about specificity. Many of these antibodies are non-specific to IBD and can appear in other autoimmune conditions, which often leads to a high rate of overlapping phenotypes in early screening.

DevilsAdvocate_Dan·5 days ago

If we consider the parallel with cardiovascular risk scores, a high false positive rate is often acceptable if the intervention is low-risk. Could a simple dietary shift based on these markers prevent the onset entirely?