A multicenter evaluation of the CARLA system for the measurement of specific IgE antibodies vs. other different methods and skin prick tests.
The evaluation of specific IgE by using appropriate immunoassays represents a useful alternative diagnostic procedure where skin prick tests (SPTs) are not conclusive in clarifying the etiological role of suspected allergens. This study compares the results of the evaluation of specific IgE by using the CARLA system vs. other commercially available immunoassays (CAP system, Ala-STAT Medical system, ALLERgen IFCI Clone System) carried out on the same blood samples obtained from allergic/SPTs negative patients and vs. SPTs. We evaluated serum specific IgE produced against five selected allergens (Dermatophagoides pteronyssinus, Olea europaea, Parietaria judaica, Lolium perenne and Phleum pratense) by using these immunoassays and the correlations between the results of SPTs and IgE evaluations. We demonstrated a good correlation between these last parameters including a high degree of sensitivity and specificity. The reproducibility of the CARLA system was very high by comparing the results obtained by two different laboratories. The results of the CARLA system were well correlated to those of other well-known immunoassays such as CAP system and Ala STAT system. In conclusion, the CARLA system represents an efficient and reliable immunoassay for the evaluation of serum specific IgE.
Liccardi
G
G
Division of Pneumology and Allergology, A. Cardarelli Hospital, Naples, Italy. gennaro.liccardi@tin.it
Dente
B
B
Triggiani
M
M
Russo
M
M
Diamare
F
F
Massari
A
A
Pinzarrone
R
R
D'Isanto
R
R
Letizia
M
M
D'Amato
M
M
D'Amato
G
G
D000293:Adolescent; D000328:Adult; D000368:Aged; D000888:Antibodies, Anti-Idiotypic / Q000032:analysis / Q000097:blood*; D000918:Antibody Specificity; D002648:Child; D002675:Child, Preschool; D015331:Cohort Studies; D005260:Female; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis* / Q000276:immunology; D007073:Immunoglobulin E / Q000032:analysis / Q000097:blood*; D016014:Linear Models; D008297:Male; D008875:Middle Aged; D010328:Patch Tests / Q000379:methods*; D011852:Radioallergosorbent Test; D012680:Sensitivity and Specificity
D000888:Antibodies, Anti-Idiotypic; D007073:Immunoglobulin E