title: Helicobacter pylori infection and monoclonal gammopathy of undetermined significance.
abstract: A recent report found resolution of monoclonal gammopathy of undetermined significance (MGUS) in nearly 30% of patients upon eradication of concomitant Helicobacter pylori (H. pylori) infection. We performed serologicalal testing for H. pylori on 93 MGUS patients and 98 control subjects. Seroprevalence of H. pylori was not significantly different between the two groups, 30% and 32% respectively. A retrospective review of Mayo Clinic records revealed identical diagnosis rates of H. pylori infection (33%) by serology, breath or stool testing between patients with MGUS and those with negative monoclonal protein studies. There was no evidence of resolution of MGUS with H. pylori therapy.
authors.affiliation: Divisions of Hematology, Gastroenterology and Biostatistics, Mayo Clinic, Rochester, MN 55905, USA. rajks@mayo.edu
authors.forename: S Vincent
authors.initials: SV
authors.lastname: Rajkumar
authors.forename: Robert A
authors.initials: RA
authors.lastname: Kyle
authors.forename: Matthew F
authors.initials: MF
authors.lastname: Plevak
authors.forename: Joseph A
authors.initials: JA
authors.lastname: Murray
authors.forename: Terry M
authors.initials: TM
authors.lastname: Therneau
mesh_terms: D000368:Aged; D015331:Cohort Studies; D016481:Helicobacter Infections / Q000097:blood / Q000150:complications*; D016480:Helicobacter pylori / Q000302:isolation & purification*; D006801:Humans; D008875:Middle Aged; D010265:Paraproteinemias / Q000097:blood / Q000382:microbiology*; D011446:Prospective Studies; D012189:Retrospective Studies