Table 2.

Anticomplementary activity of FTA and its metabolites by human intestinal bacteria.

Sample	CH50 (mg/ml)a	AP50 (mg/ml)a
FTA	NEb	NE
HT	0.096 ± 0.007	0.121 ± 0.012
DCA	0.321 ± 0.011	0.427 ± 0.023−
CA	0.923 ± 0.037	1.038 ± 0.131
Heparin sodium	0.068 ± 0.002	0.086 ± 0.003

^aThe data are expressed as the mean ± SD of independent experiments performed in triplicate.

^bNE denotes that this compound has no inhibitory effect at the maximal concentration tested.