All drugs used in the present study were analytical reagent. Ang II,
lucigenin (5 μmol/L) and 5-HD (100 μmol/L), were purchased from
Sigma; apocynin (300 μmol/L; Fluka); losartan (1 μmol/L; Merck);
glibenclamide (50 μmol/L); RBI, USA) and cariporide (10 μmol/L
HOE642, kindly donated by Aventis Pharma).