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J Pintera

Publications and source records attributed to J Pintera.

35 records · Page 2Linked to original sources

Anti-HBbrno: a new CIEP hepatitis B marker, more sensitive than HBsAg radioimmunoassay.

Evidence is presented for the new HBbrnoAg-Anti-HGbrno system association with the HBsAg. The association is displayed particularly in a prevalence of Ausria detectable HBsAg carriers among the anti-HBbrno carriers, suggesting the anti-HBbrno to be a marker of contact with hepatitis B or, possibly, an indicator of co-existing HBsAg antigenaemia, not detectable by radioimmunoassay. Identity of HBbrnoAg with HBsAg/a, d, y, w, is ruled out, the identity with the other HBV associated antigenic specificities remaining questionable.

Antigen-Antibody Complex

Quantitation of the ABO system antigens by means of isoprecipitating antisera.

A quantitative method for the determination of blood group specific substances A and B on red blood cells was developed, using them to absorb isoprecipitating antisera anti-A and anti-B, followed by estimation of the residual antibody by means of a counterimmunoelectrophoretic technique with standard solutions of A and B substances prepared from saliva. The method was tested on a population of A2B donors. The mean amount of A substance in A2B RBC was 131 X 10(-12) +/- 217 X 10(-12) u/cell in the population of 95 donors. The A substance thus determined agreed significantly with values obtained by classical haemagglutinating titration. The mean amount of B substance in A2B RBC was 222 X 10(-12) +/- 178 X 10(-12) m/cell. The amounts of both the A and B substances were not correlated on the same RBC. Several peaks of the distribution curve of both substances confirmed the non-homogeneity of the populations, there being a wide standard deviation presumably due to differences in the antigen content of different subgroups.

ABO Blood-Group System