Results 191 to 200 of about 48,373 (242)

Quantitative Determination of the HBsAg

Vox Sanguinis, 1980
Abstract. HBsAg concentrations down to 0.05 mg/ml can be measured by a quantitative immunoelectrophoresis. By a quantitative radioimmunoassay, HBsAg concentrations from 0.001 mg to 1 mg/ml can be measured.
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Detection of HBsAg mutants

Journal of Medical Virology, 2006
HBsAg screening is carried out routinely to detect hepatitis B virus (HBV) infection. The immunoassays used employ capture antibodies often having specificity for epitopes present on the antigenic (a) determinant of the HBsAg. Loss of detection may occur due to mutations within and/or outside of the a determinant that affect conformational epitope ...
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Circulating HBsAg/IgM complexes in chronic HBsAg carriers

Annales de l'Institut Pasteur / Virologie, 1983
Summary Sera of young male HBsAg carriers from Senegal were investigated for complexes between IgM and HBsAg. An enzyme-linked immunosorbent assay based on selective absorption of IgM was used. HBsAg/IgM complexes were detected in 14% of the HBsAg carriers.
P. Coursaget, J.L. Barres, B. Yvonnet, E. Petat, S. M'Boup, J.E. Bocande, I. Diop-Mar, J.P. Chiron   +7 more
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[Incidence of HBsAg in persons living with HBsAg carriers].

Quaderni Sclavo di diagnostica clinica e di laboratorio, 1976
The prevalence of HBsAg was studied, by Counterelectrophoresis and Radioimmunoassay, in 232 household contacts of 65 HBsAg carriers. The overall incidence of HBsAg in household contacts was 14,65%, as compared with the generally accepted figure of about 1% in the general population in Italy. As far as the prevalence of HBsAg and abnormal liver function
N, Dioguardi, E, Del Ninno, M, Colombo, F, Viganò, R, De Franchis   +4 more
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The Development of HBsAg-Positive Hepatitis Despite the Previous Existence of Antibody to HBsAg

The Journal of Immunology, 1976
Summary A dentist developed acute, icteric HBsAg-positive hepatitis despite the prior existence of anti-HBs. Evaluation of this antibody showed it to have a restricted specificity reacting with only one subdeterminant (α1) of the hepatitis B surface antigen. The anti-HBs/α1 coexisted with HBsAg of subtype ayw in the acute phase hepatitis
D E, Koziol, H J, Alter, J P, Kirchner, P V, Holland   +3 more
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HBsAg subtype distribution among different populations of HBsAg carriers in Spain

European Journal of Epidemiology, 1995
Data concerning the HBsAg subtype distribution in Spain are out-of-date and confined to a restricted geographical area. Furthermore, the complex distribution observed in the countries surrounding Spain prevents any prediction. To obtain further data on HBsAg subtype distribution among Spanish HBsAg carriers, subtyping analysis (d and y determinants ...
J E, Echevarría, P, León, J A, López, A, Tenorio, C J, Domingo, J M, Echevarría   +5 more
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Hepatitis B Surface Antigen (HBsAg) and Antibody to HBsAg

JAMA, 1977
The prevalence rates of serum hepatitis B surface antigen (HB s Ag) and antibody to HB s Ag (anti-HB s ) were 5.6% and 34% in 144 homosexual men in Seattle. Prevalence rates were only 0.9% and 3.6% in 111 heterosexual male venereal disease clinic patients with nongonococcal urethritis, and also 0.9% and 3.6% in 111 healthy men undergoing routine ...
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Establishment of an HBsAg mixed titer performance panel and HBsAg working standard for quality control of HBsAg diagnostic kits in Korea

Journal of Clinical Virology, 2010
International Standards or commercial panels used for performance validation of diagnostic kits might not reflect the viral characteristics common in Korea. Also, continuous use of these materials is difficult because of limited quantity and high cost.Establishment of HBsAg reference materials to be used as National Standards for validation of HBsAg ...
So-Yong, Kwon, Nam-Sun, Cho, Youn Jung, Cho, Kyoung Won, Yoon, Kyoung Young, Choi, Jong Sun, Park, Sookwon, Ryu, Ju Hun, Lee, Gun Woo, Ha   +8 more
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HLA Antigens in HBsAg Infection

Vox Sanguinis, 1979
Abstract. The HLA typing of hemodialysis patients and normal subjects suggests a negative association of B8 and positive association of B5 with the development of anti‐HBs and a negative association of BW35 with HBsAg antigenemia.
D P, Sengar, A, Rashid, S L, Jindal, C J, Christie   +3 more
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Immunogenetics of the response to HBsAg vaccination

Autoimmunity Reviews, 2003
The major envelope protein of the hepatitis B virus (HBV), the HBsAg, constitutes the current preventative vaccine, which represents the first subunit viral vaccine developed. The genetics of the immune response to HBsAg has been extensively studied both in humans and mice. Murine studies begun over 20 years ago indicated that at least two MHC class II
David R, Milich, Geert G, Leroux-Roels
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