We have studied functional alteration of immunocytes in mice following inoculation of Toxocara canis second stage larvae. Results indicated depression of lymphocyte blastogenesis in response to concanavalin-A, phytohemagglutinin and allogeneic non B-cells; however, B-cell polyclonal activation was not affected as indicated by the production of total IgG. In contrast, frequency of antibody ...

The frequency of mitogen-reactive B cells yielding an IgG plaque-forming cell (PFC) response has been determined in vitro by limiting dilution analysis under culture conditions which allow every growth-induced B cell to grow and mature into a clone of Ig-secreting cells. The frequencies of lipopolysaccharide (LPS)-and lipoprotein-reactive precursors for IgG-secreting cells in the spleen of 6--8...

Multi-secreting pituitary adenomas are relatively rare. The mixed somatotropic and corticotropic adenoma is very most widely described association that coupling hypersecretion of GH prolactin. We report the case a patient with bi-secreting ACTH. He was 28-year-old admitted for tumor syndrome, cushing syndrome. hormonal assessment found dependent ACTH other hypothalamohypophysial axes were witho...

The T-type Ca + channel is an important determinant of electrical activity and of Ca + influx in rat and human pancreatic -cells. We have identified and sequenced a cDNA encoding a T-type Ca + channel 1s u b u n i t derived from INS-1, the rat insulin-secreting cell line. The sequence of the cDNA indicates a protein composed of 2,288 amino acids that shares 96.3% identity to 1G, the neuronal T-...

(P < 0.02). The mean number of IgA secreting cells in bronchial lavage fluids was 633 per million lymphocytes as compared to 100 per million lymphocytes in peripheral blood (P < 0.005). Thus, compared to peripheral blood, cells from the lavage fluids were relatively enriched for both IgG and IgA secreting cells. However, IgA secreting cells were the major class of immunoglobulin secreting cells...

Endogenous long-term timing is a key component of seasonality. Where and how are such rhythms generated? Recent findings pointed to the pituitary pars tuberalis, already implicated in photoperiod responsiveness. Now, a new study provides mechanistic insights which support this hypothesis.

An enzyme-linked immunosorbent plaque assay is described which can reliably enumerate influenza virus-specific antibody-secreting cells and exhibits specificity similar to that of the indirect enzyme-linked immunosorbent assay. The assay was used to characterize the development of specific antibody-secreting cells, principally within lung tissue, during primary murine influenza virus infection ...

Expression of apolipoprotein (apo) E by macrophages is tightly regulated by cellular cholesterol content. We have investigated a potential modulating role for apoE on macrophage cholesterol homeostasis by stably transfecting the J774 macrophage, which does not express its endogenous apoE gene, with a human apoE cDNA expression vector and comparing cholesterol homeostasis in this cell line with ...