Common mistakes around Helicobacter Genetik

Common mistakes around Helicobacter genetics: 1) Confusing genetic risk with active infection – a risk variant (e.g., in IL1B) does not mean you currently have H. pylori. 2) Overinterpreting weak associations – most SNPs have small effect sizes and lack clinical utility. 3) Assuming a negative genetic test rules out infection – genetics only assess predisposition, not the pathogen itself. 4) Ignoring environmental factors – diet, hygiene, and antibiotic use often outweigh genetic risk. 5) Mislabeling HLA-DQ2/DQ8 as 'celiac genes' – these are linked to celiac disease, not directly to H. pylori. Evidence for consumer genetic tests on H. pylori is mostly mechanistic or based on small studies; no strong clinical guidelines support routine testing. Always confirm infection with a stool antigen or urea breath test before treatment. Genetic results should not replace standard diagnostic procedures.