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Hyperpolarisation reaction (dPD) at the time of mechanical stimulation of isolated colon wall in: control condition (A), Pb-treated rats (B) Pb-treated rats and vit. E supplemented (C), Pb-treated rats and Trolox supplemented (D), Pb-treated rats and vit. C supplemented (E) Pb-treated rats and vit. C and Trolox supplemented (F). Stimulation was 30s of jet rising. The start and finish of stimulation are denoted by the pair of arrows. Single experiments are shown.
