P. aeruginosa killed polyvalent corpuscular vaccine, tested in a trial on 42 volunteer donors, is safe, low reactogenic and possesses pronounced immunogenicity, as the injection of the vaccine induced a rise in the titer of antibodies to P. aeruginosa up to 1:1280 in 95% of the immunized donors. To obtain specific antibodies in the blood plasma of the donors in an amount sufficient for the protective activity of the plasma becoming manifest, it is expedient to use the vaccination schedule providing for subcutaneous injections of 0.5, 0.5 and 1.0 ml at intervals of 7 days. Intense immunity thus induced in the donors lasts for 3-4 months. The hyperimmune plasma obtained from the donors has an antibody titer of at least 1:320 and shows a 90-100% protective effect in mice infected intraperitoneally with P. aeruginosa. The preliminary results of the clinical trial of anti-P. aeruginosa plasma have demonstrated its efficiency as a part of the complex treatment of patients with purulent septic complications of P. aeruginosa etiology.
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Sensors (Basel)
November 2018
A.N. Bach Institute of Biochemistry, Research Centre of Biotechnology of the Russian Academy of Sciences, Leninsky Prospect 33, 119071 Moscow, Russia.
A simple approach was proposed to decrease the detection limit of sandwich lateral flow immunoassay (LFIA) by changing the conditions for binding between a polyvalent antigen and a conjugate of gold nanoparticles (GNPs) with antibodies. In this study, the potato virus Y (PVY) was used as the polyvalent antigen, which affects economically important plants in the family. The obtained polyclonal antibodies that are specific to PVY were characterized using a sandwich enzyme-linked immunosorbent assay (ELISA) and surface plasmon resonance (SPR).
View Article and Find Full Text PDFAnn Intern Med
February 1996
Maimonides Medical Center, Department of Medicine, Brooklyn, NY 11219, USA.
Objective: To determine whether immunocompetent elderly patients with low serum vitamin B12 levels have impaired serum antibody responses to the 23-polyvalent pneumococcal polysaccharide vaccine.
Design: Controlled, prospective cohort study.
Measurements: 15 patients with low serum vitamin B12 levels and 15 age- and diagnosis-matched patients with normal levels were vaccinated.
Antibiot Khimioter
April 1989
Certain indices of immunity were studied in mice with burn sepsis due to P. aeruginosa during their treatment with tobramycin (Tb) alone or in combination with immunological drugs. The most significant stimulation of the phagocytic function of peritoneal macrophages was observed when Tb was used in combination with polyvalent corpuscular vaccine of P.
View Article and Find Full Text PDFZh Mikrobiol Epidemiol Immunobiol
January 1989
The use of polyvalent erythrocyte diagnosticum prepared on the basis of 5 polysaccharide antigens of P. aeruginosa slime, isolated from strains belonging to the most widespread serovars, makes it possible to check up the humoral response of donors after their immunization with P. aeruginosa polyvalent corpuscular vaccine with the aim of obtaining anti-P.
View Article and Find Full Text PDFZentralbl Bakteriol Mikrobiol Hyg A
November 1987
Institute of Virology, Slovak Academy of Sciences, Bratislava, Czechoslovakia.
Of three Q fever vaccine candidates available at present, i.e., phase I corpuscular untreated, soluble, and phase I corpuscular chloroform-methanol treated vaccines, the first two were tested on hundreds of subjects exposed to Q fever.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!