dictionary help| SRS --> slow-reacting substance | medical dictionary |
Slow-reacting substance of anaphylaxis (SRS-A), a leukotriene of low molecular weight which is released in anaphylactic shock and produces slower and more prolonged contraction of muscle than does histamine; it is active in the presence of antihistamines (but not epinephrine) and seems not to occur preformed in mast cells, but as a result of an antigen-antibody reaction on the granules.
Compare: peptidyl leukotrienes.
Synonyms: slow-reacting factor of anaphylaxis.
Acronym: SRS
(05 Mar 2000)
slow pyrolysis, slow ray, slow-reacting factor of anaphylaxis < Prev | Next > slow reacting substance of anaphylaxis, slows
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