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The increased histamine release in ischaemic heart disease patients undergoing coronaroangiography is not mediated by specific IgE
Author(s) -
Rodriguez R. M.,
Guéant J.L.,
AimoneGastin I.,
Gérard P.,
Amoghly F.,
Bellou A.,
Jullière Y.,
Faure G.,
Danchin N.,
Romano A.
Publication year - 2002
Publication title -
allergy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.363
H-Index - 173
eISSN - 1398-9995
pISSN - 0105-4538
DOI - 10.1034/j.1398-9995.57.s72.17.x
Subject(s) - histamine , medicine , immunoglobulin e , coronary artery disease , artery , cardiology , immunology , gastroenterology , antibody
Background: The release of histamine by iodinated contrast media (ICM) is higher in coronary artery disease patients than in noncoronary patients during coronary angiogram. Methods: Eighty‐eight patients who underwent a coronary angiography were classified either as having coronary artery disease or as noncoronary patients. Histamine concentration was higher than the 6.8 nM upper limit in 7 cases (group 1), of whom six were coronary artery disease patients. We compared the IgE and complement fractions in plasma of these patients to two control groups with normal histamine blood level, one (group 2) with and the other (group 3) without coronary artery disease. Results: No difference of total IgE and C3cand C4 complement fractions was found among the three groups. Anti‐ioxaglate IgE‐RIA was positive in only one patient from group 1. The affinity of drug‐IgE binding in the serum of this patient was very low (Kd: 18.7 mM). The level of anti‐ICM IgE detected by ioxitalamate‐ and iomeprol‐Sepharose RIA was significantly higher in groups 2 and 3 than in group 1. Conclusions: The higher histamine release in ischaemic heart disease patients undergoing coronaroangiography is not mediated by IgE or complement activation. Further studies are needed to investigate the implication of histamine release factors.