Helicobacter pylori serology in autoimmune diseases - fact or fiction? - PubMed (original) (raw)
. 2013 May;51(5):1075-82.
doi: 10.1515/cclm-2012-0477.
Affiliations
- PMID: 23079514
- DOI: 10.1515/cclm-2012-0477
Helicobacter pylori serology in autoimmune diseases - fact or fiction?
Maya Ram et al. Clin Chem Lab Med. 2013 May.
Abstract
Background: The pathogenesis of autoimmunity is presumed to be a complex process including genetic predisposition, hormonal balance and environmental factors such as infectious agents. Helicobacter pylori, a common bacterial infectious agent has been associated with a variety of autoimmune disorders. However, this bacteria is also thought to play a protective role in the development of multiple sclerosis (MS), systemic lupus erythematosus (SLE) and inflammatory bowel disease (IBD). We tested various links between anti-H. pylori (anti-HP) antibodies and a wide profile of autoimmune diseases and autoantibodies.
Methods: A total of 1290 patients diagnosed with 14 different autoimmune diseases from two geographical areas (Europe and Latin America) and two groups of healthy matching controls (n=385) were screened for the presence of H. pylori IgG antibodies by "pylori detect" kit. In parallel, a large profile belonging to three groups of autoantibodies was tested in all sera (anti-nuclear antibodies, autoantibodies associated with thrombophilia and gastrointestinal diseases).
Results: Our data demonstrate associations between anti-HP antibodies and anti-phospholipid syndrome, giant cell arteritis, systemic sclerosis and primary biliary cirrhosis. Our data also support a previously known negative association between the prevalence of anti-HP antibodies and IBD. Additionally, links were made between seropositivity to H. pylori and the presence of anti-nuclear antibodies, dsDNA, anti-Ro and some thrombophilia-associated antibodies, as well as negative associations with gastrointestinal-associated antibodies.
Conclusions: Whether these links are epiphenomenal or H. pylori does play a causative role in the autoimmune diseases remains uncertain. The negative associations could possibly support the notion that in susceptible individuals infections may protect from the development of autoimmune diseases.
Comment in
- Relationship between Helicobacter pylori infection and autoimmune disorders.
Kountouras J, Zavos C, Polyzos SA, Michael S, Tsiaousi E, Vardaka E, Katsinelos P, Kouklakis G, Paikos D, Gavalas E, Deretzi G, Giartza-Taxidou E, Loli E. Kountouras J, et al. Clin Chem Lab Med. 2013 May;51(5):e73-4. doi: 10.1515/cclm-2012-0753. Clin Chem Lab Med. 2013. PMID: 23314537 No abstract available.
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