"You could find that a molecule is up or down-regulated, but whether that relates to a consumer noticing a difference is a big jump," says Diona Damian at the University of Sydney, Australia.

“你可能会发现某种分子被人为控制增长或衰减，但它引起的差异是否能被消费者注意到，这是一个飞跃。”澳洲悉尼大学的戴奥娜。达米安说。

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Diona Doherty from Londonderry is also at the festival for the first time with comedy sketch group FNT (Friday Night Therapy).

BBC: NI acts make their mark at the Edinburgh Fringe Festival