PubMed Health⌕ Search

Biomedical subjects

P Angelidis

Publications and source records attributed to P Angelidis.

6 recordsLinked to original sources

Immersion booster vaccination effect on sea bass (Dicentrarchus labrax L.) juveniles.

In each challenge 30 sea bass juveniles (mean weight 3.3 +/- 0.2 g SD) were used. During the whole experiment (water T: 18 +/- 1 degrees C) the fish were held in four 50l seawater independent recirculation systems (one fish group per 50l system). The protection to the pathogen Vibrio anguillarum was tested on booster vaccinated sea bass (Dicentrarchus labrax L.) juveniles. The vaccination was performed by immersion for 60 s in a commercial anti-V. anguillarum vaccine suspension. Booster vaccination took place 60 days after the initial immunization. Thirty days after the booster vaccination all the fish received intraperitoneally (IP) 3.0 x 10(6) cfu/fish (colony forming units) virulent V. anguillarum bacteria. The booster vaccination showed a strong protection effect on the challenged sea bass. In the next 20 days after the challenge the mortality was 0% among the booster vaccinated sea bass, 10% among the once vaccinated fish and 50% in the control group (unvaccinated fish). No mortality was observed among the unvaccinated sea bass injected IP with sterile normal saline by the challenge.

Animals↗

Activation of peripheral blood lymphocytes in patients with primary Sjögren's syndrome.

The peripheral blood from 15 patients with primary Sjögren's syndrome and from 15 matched controls was examined for the presence of activated T and B lymphocytes, by using monoclonal antibodies directed to interleukin-2 (IL-2) and transferrin receptors, and to HLA-DR determinants. The number of circulating positive-T cells was significantly greater in the patients than in the controls, irrespective of disease activity. There were more of the CD8 cells than of the CD4 cells that expressed IL-2 receptors. There was a small but significant increase in activated B cells in the patients, since this population is virtually absent from the normal blood.

Adult↗

CD5-expressing B lymphocytes in the blood and salivary glands of patients with primary Sjögren's syndrome.

CD5, the human counterpart of Ly-1 molecules in the mouse, are detectable but weakly expressed on a minute fraction of circulating B cells. The number of CD5 + B cells in the blood of patients with Sjögren's syndrome was slightly higher than in control blood, but it became statistically significant after treatment of the cells with phorbol myristic acetate. These numbers were even higher in patients with homogeneous serum bands than in the others. A few scattered cells were stained with anti-human IgM antibody on salivary gland sections, and among them 5-10% were found to be positive for anti-CD5.

Adult↗