[The antigenic characteristics of the capsid proteins in strains of the potato virus Y]. / Antigennaia kharakteristika kapsidnykh belkov shtammov Y-virusa kartofelia.

The antigenic properties of capsid proteins of potato virus Y (PVY) strains have been studied, the most wide antigenic specificity of necrotic group strains has been marked. Several antigen-active strains of necrotic group strains (PVY-N Far East, PVY-N Leningrad, PVY-N Moscow) and common group (PVY-O-3 Moscow, PVY-O Far East) have been revealed. Antisera against these strains reacted with any PVY strain. Virus specific surface epitope, corresponding to position 198-208 of polypeptide chain has been located, which is a group-specific epitope of potyviruses, identified in the Far East.

[The presence of antithyroid antibodies in the blood serum of patients with diffuse toxic goiter before and during treatment]. / Nalichie antitireoidnykh antitel v syvorotke krovi u bol'nykh diffuznym toksicheskim zobom do i vo vremia lecheniia.

The level of antibodies to thyroglobulin (Ab-TG), microsomal fraction (Ab-ME) and plasma membranes of thyrocytes (PMT) was investigated in patients with Basedow's disease using the DELFIA method. Altogether 81 patients were investigated before the onset of therapy, of them 44-3 and 12 mos. after thiamazole therapy. Before the onset of therapy among 81 patients Ab-MF were detected in 55, Ab-TG--in 69, Ab-PMT--in 70, exceeding considerably (p less than 0.05) the respective indices in the control group. During investigation of 44 patients the following indices were detected in 3 mos.: Ab-TG--in 35 patients, Ab-MF--in 26, and Ab-PMT--in 35; in 12 mos.: these indices were detected in 21, 15 and 23 patients, respectively. A significant decrease in the detectability (p less than 0.05) of Ab-TG, Ab-MF and Ab-PMT was noted one year after the onset of thiamazole therapy.