since bile iga in rats is largely , but not entirely , derived from intestinal synthesis ( vaerman , lemaitre-coelho & jackson , 1978 ; manning et al. , 1984 ) , rats intestinally immunized with ct could display high levels of anti-ct iga ab in their bile , and these ab might neutralize ct in the biologically relevant intestinal loop assay ( lange & holmgren , 1978 ) .
C2825347
iga
C0003241
ab