Robin Biswas

Learn More
BACKGROUND A study was designed to estimate relative analytic sensitivity and window-period (WP) closure and to project incremental yield of newer HBsAg tests, pooled-sample NAT, and single-sample NAT, compared to currently licensed HBsAg tests. STUDY DESIGN AND METHODS HBV DNA and HBsAg test results for 23 HBV seroconversion (SC) panels were first(More)
IgG and IgM anticardiolipin antibodies (aCL) were measured by a solid phase enzyme immunoassay in 64 patients with systemic lupus erythematosus who had one or more clinical disorders reported to be associated with aCL. We found the presence of IgG aCL was significantly associated with an increased incidence of cerebrovascular disease (p less than 0.01), a(More)
Using direct solid-phase radioimmunoassay (dSP-RIA) which was shown to be specific and about 10000 times more sensitive than immunodiffusion and even 10 times more sensitive than the radioimmunoprecipitation test used by us before, anti-HBs was detected in 90% of hepatitis B convalescents who were followed up for a one year observation period and who had(More)
H. W. Reesink, C. P. Engelfriet, G. Henn, W. R. Mayr, G. Delage, F. Bernier, T. Krusius, A. Assal, P. Gallian, C. Corbi, P. Morel, B. David, P. De Micco, H. Murokawa, H. Yugi, S. Hino, K. Tadokoro, Ø. Flesland, E. Brojer, M. Òé towska, G. Olim, F. Nascimento, H. Gonçalves, L. Castro, M. Morais, S. L. Stezinar, M. Alvarez, S. Sauleda, R. González, C.(More)
Die Häufigkeit von Hepatitis B Virus-Infektionen wurde mit Hilfe von drei serologischen Parametern untersucht: HBsAg, antiHBs und antiHBc. Alle drei Substanzen wurden qualitativ mit empfindlichen radioimmunologischen Techniken nachgewiesen. Unter 1216 Patienten mit akuter Hepatitis wiesen zum Zeitpunkt der Klinikeinlieferung 55% HbsAg und antiHBc auf.(More)
Hepatitis B virus X protein (HBX) was studied for its capacity to form a specific complex with the retinoblastoma tumour suppressor protein (pRB), and for its effect on the expression of pRB. HBX was synthesized by in vitro transcription and translation in the presence of [35S]methionine. The synthesized HBX was assayed for its binding to a(More)