What's the difference between helper and yelper?

Helper


Definition:

  • (n.) One who, or that which, helps, aids, assists, or relieves; as, a lay helper in a parish.

Example Sentences:

  • (1) The results indicate that OA-bearing macrophages primed T cells and generated helper T cells, whereas the culture of normal lymphocytes with soluble OA in the absence of macrophages generated suppressor T cells.
  • (2) Stable factor-dependent B-cell hybridomas were used to monitor the purification of the growth factor from the supernatant of a clonotypically stimulated mouse helper T-cell clone.
  • (3) Cyclosporine is a fungal endecapeptide of novel chemical structure that causes preferential inhibition of T helper cells.
  • (4) T cells admixed in the germinal centers were overwhelmingly of the T-helper type.
  • (5) The data indicate that activated helper T cells are required and sufficient to give rise to the inflammatory infiltrates that are characteristic of the inflammations and exacerbations in human rheumatoid arthritis.
  • (6) It was demonstrated that antigen specific helper T cell activity was promoted by diazepam administration in mice.
  • (7) Although T cells exposed to antigen in B-depleted LN of mu sm and irradiated mice gave negligible T proliferative responses in vitro, low but significant levels of primed T helper function were detected in a sensitive T helper assay in vivo.
  • (8) The neoplastic T cells of three patients had helper activity on both PWM- and IL-2-driven Ig synthesis, and in addition produced IL-2 in response to PWM stimulation.
  • (9) Analysis of mice injected with helper-free P90A virus stocks demonstrates that the variants are generated during viral replication in vivo, probably as a consequence of error-prone reverse transcription.
  • (10) The role played by macrophages in two effects of lipopolysaccharide (LPS) on the immune system of the mouse-substitution for helper T cells and induction of B-cell mitosis-has been investigated.
  • (11) These steps include soluble antigen processing and presentation and as a result reduced production of IL-4 and IL-1-Inducer Factor ("IL-1-IF") by the T-helper cells and reduced production of IL-1 and IL-2 by the antigen presenting cell population.
  • (12) LEW rats immunized with each of the three DA MHC chains produced alloantibodies to these chains, suggesting that indirect allorecognition did occur, because of the requirement for cognate recognition of B cells by T helper cells.
  • (13) These effects appear to be due to both T helper-dependent regulation and to a mitogenic activity associated with the parasites themselves.
  • (14) An immunohistologic study showed that the psoriatic plaques contained an infiltrate composed mainly of activated helper T lymphocytes.
  • (15) These and previous results support the hypothesis that decreased IL-2 production by both T-helper and NK cells from CML patients may be mechanistically related to the observed NK-cell immunodeficiency in CML patients.
  • (16) It is suggested that the capacity of large doses of L3T4+ cells to protect mice against lethal GVHD is a reflection of T helper function: the cellular immunity provided by the donor L3T4+ cells enables the host to repel pathogens entering through damaged mucosal surfaces, with the result that GVHD becomes sublethal.
  • (17) Therefore, Leu 7+ (Leu 3+) germinal-center cells are distinct from "classic" T-helper cells of blood and lymphoid tissues.
  • (18) The addition of concanavalin A-stimulated supernatants of the helper T cell clone, D9.1, to cultures of lipopolysaccharide (LPS)-stimulated T-depleted mouse spleen cells caused more than a 100-fold increase in immunoglobulin (Ig) E production.
  • (19) Microcultures of helper T (Th) cells and a few appropriately primed murine B cells can be used to detect cognate T-B interactions which lead to clonal production of IgM, IgG1, and IgE.
  • (20) CD4+ helper T cells predominated in all tumors except melanomas, which had more CD8+ cytotoxic T cells.

Yelper


Definition:

  • (n.) An animal that yelps, or makes a yelping noise.
  • (n.) The avocet; -- so called from its sharp, shrill cry.
  • (n.) The tattler.

Example Sentences:

  • (1) These "yelpers" and "screamers" include his frenemy, David Cameron.

Words possibly related to "yelper"