| PAF-A | platelet-activating factor of anaphylaxis |
|---|---|
| PCA | para-chloramphetamine; parietal cell antibody; passive cutaneous anaphylaxis; patient care assistant... |
| RPA | radial photon apsorptiometry; replication protein A; resultant physiologic acceleration; reverse pas... |
| SRF-A | slow-reacting factor-anaphylaxis |
| SRSA, SRS-A | slow-reacting substance of anaphylaxis |
| ECF-A | eosinophil chemotactic factor of anaphylaxis |
|---|---|
| RCA | reverse cutaneous anaphylaxis |
| slow reacting substance of anaphylaxis | <immunology> Potent bronchoconstrictor and inflammatory agent released by mast cells, an important mediator of allergic bronchial asthma. A mixture of three leukotrienes (LTC4 mainly, LTD4 and LTE4) (18 Nov 1997) |
|---|---|
| systemic anaphylaxis | The immediate response, involving smooth muscles and capillaries throughout the body of a sensitised individual, that follows intravenous (and occasionally intracutaneous) injection of antigen (allergen). See: anaphylactic shock. Synonym: systemic anaphylaxis. (05 Mar 2000) |
| inverse anaphylaxis | Anaphylactic shock in an animal (e.g., guinea pig) whose tissues contain Forssman antigen, resulting from an intravenous injection of serum that contains Forssman's antibody. (05 Mar 2000) |
| eosinophil chemotactic factor of anaphylaxis | A peptide (MW 500 to 600) that is chemotactic for eosinophilic leukocytes and is released from disrupted mast cells. (05 Mar 2000) |
| local anaphylaxis | The immediate, transient kind of response that follows the injection of antigen (allergen) into the skin of a sensitised individual and is limited to the area surrounding the site of inoculation. See: skin test. (05 Mar 2000) |