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reagin
1) Wolf Eisner's term for antibody.
2) Old term for the Wassermann antibody which is evoked during syphilitic infections & combines with cardiolipin in the presence of lecithin & cholesterol (IgM). It is distinct from the treponema-immobilizing antibody.
3) Antibodies that mediate immune hypersensitivity reactions (IgE in humans).
Related
cardiolipin
cholesterol
phosphatidylcholine (lecithin)
serologic test for syphilis
Specific
rapid plasma reagin (RPR)
reagin Ab in CSF
unheated serum reagin (USR)
VDRL reagin slide (VDRL)
General
serology
References
Stedman's Medical Dictionary 26th ed, Williams &
Wilkins, Baltimore, 1995