Correlation between two chemiluminescence based assays for quantification of hepatitis B surface antigen in patients with chronic hepatitis B infection.
Indian J Med Microbiol
;
2015 Jan-Mar ; 33 (1): 96-100
Artículo
en Inglés
| IMSEAR
| ID: sea-156997
ABSTRACT
Purpose:
Hepatitis B surface Antigen (HBsAg) is the hallmark in diagnosing hepatitis B virus (HBV) infection. In India many commercial assays are available for detection of HBsAg but very few can measure it quantitatively. The present study presents the comparative evaluation of two methods and their correlation with serum HBsAg in chronic hepatitis B (CHB) patients. Materials andMethods:
Consecutive patients of CHB were included and there HBsAg levels were measured by twomethods:
(i) Elecsys, Roche Diagnostics, a qualitative assay and (ii) Architect, Abbott Diagnostics, a quantitative assay. The HBV DNA was measured by real-time polymerase chain reaction (qPCR).Results:
Total of 136 patients were included in the study and there was a signifi cant overall correlation between both the assays (correlation coeffi cient [r] = 0.83; P < 0.001). Assays correlated well with each other across all subgroups of CHB treatment naïve (r = 0.73; P < 0.001, n = 32), on treatment (r = 0.56; P < 0.05, n = 104), hepatitis Be (HBe) antigen positive (r = 0.67; P < 0.001, n = 62) and anti-HBe positive (r = 0.61; P < 0.05, n = 74) group. On correlation with serum HBV DNA, Architect assay demonstrated good correlation (r = 0.73; P < 0.001, n = 136) as compared to the Elecsys assay (r = 0.27; P = 0.068, n = 136). Architect HBsAg QT assay (A1) also correlated well with HBV DNA in the treatment naïve group (r = 0.69; P < 0.001, n = 32).Conclusions:
Our study hence proved that both the assays are comparable and a simple qualitative assay with in-house modifi cation can be used easily for quatitation of HBsAg in clinical samples.
Texto completo:
Disponible
Índice:
IMSEAR (Asia Sudoriental)
Tipo de estudio:
Investigación cualitativa
Idioma:
Inglés
Revista:
Indian J Med Microbiol
Asunto de la revista:
Microbiology
Año:
2015
Tipo del documento:
Artículo
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