ISSN:
1432-1076
Keywords:
M protein
;
Antibody
;
Children
;
Streptococcal infection
;
Mitral regurgitation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract We measured anti M protein antibody (AMPA) titres in children with idiopathic mitral regurgitation (MR), streptococcal infection, rheumatic fever (RF), post-streptococcal acute glomerulonephritis (AGN) and normal healthy children. We investigated the association of MR with streptococcal infection and whether high AMPA titres can be used as persisting evidence of previous streptococcal infection. AMPA titres were measured with an enzyme-linked immunosorbent assay. We found significantly higher antibody titres in patients with MR and in streptococcal infection, RF, and AGN than in healthy controls. In the MR group (n=15), 54% patients had AMPA titres above the 90th percentile value that was found in normal controls. An elevated AMPA titre persisted for a long period even when the anti-streptolysin O titres had declined to normal in RF patients. Our data suggest that the high AMPA titres in MR should be further investigated to clarify the probable association with previous streptococcal infection. Conclusion High AMPA titre is a risk factor for developing complications after streptococcal infection. Our serological evidence suggests that in some patients. MR may be related to previous streptococcal infection.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01953931
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