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Details

Autor(en) / Beteiligte
Titel
Helicobacter pylori infection as a protective factor against multiple sclerosis risk in females
Ist Teil von
  • Journal of neurology, neurosurgery and psychiatry, 2015-06, Vol.86 (6), p.603-607
Ort / Verlag
England: BMJ Publishing Group LTD
Erscheinungsjahr
2015
Quelle
BMJ Journals Archiv - DFG Nationallizenzen
Beschreibungen/Notizen
  • Background In recent years, a relationship between Helicobacter pylori and many disease conditions has been reported, however, studies in its relationship with multiple sclerosis (MS) have had contradictory results. Objective To determine the association between the H. pylori infection and MS. Methods 550 patients with MS were included in the study and were matched by gender and year of birth to 299 controls. Patients were assessed for clinical and demographic parameters. An enzyme immunoassay was used to detect the presence of specific IgG antibodies against H. pylori in the serum sample of both groups. Results H. pylori seropositivity was found to be lower in the patients with MS than in controls (16% vs 21%) with the decrease pertaining to females (14% vs 22%, p=0.027) but not males (19% vs 20%, p=1.0). When adjusted for age at onset, year of birth and disease duration, H. pylori seropositive females presented with a lower disability score than seronegative females (p=0.049), while among males the reverse was true (p=0.025). There was no significant association between H. pylori seropositivity and relapse rate. Conclusions Our results could reflect a protective role of H. pylori in the disease development. However, it may be that H. pylori infection is a surrogate marker for the ‘hygiene hypothesis’, a theory which postulates that early life infections are essential to prime the immune system and thus prevent allergic and autoimmune conditions later in life. The fact that the association between H. pylori seropositivity and MS risk was seen almost exclusively in females requires further investigation.

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