Estrogen-like activity of seafood related to environmental chemical contaminants

Table 2 b-galactosidase activity induced by PCB congeners (standard solutions)

Congeners	Concentrations μg/ml^a	b-galactosidase activity (percent of 10 nM E2)
PCB 28	5.0	31.10 ± 6.58
PCB 52	5.0	31.96 ± 7.82
PCB 101	5.0	18.35 ± 4.26
PCB 118	5.0	85.88 ± 19.79
PCB 138	0.05	20.95 ± 7.82
PCB 153	0.05	26.37 ± 5.63
PCB 180	5.0	22.92 ± 8.67

^aCongeners 138 and 153 were assayed at 0.05 μg/ml because at higher concentrations they strongly inhibited yeast cells growth

ISSN: 1476-069X