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Royal College of Physicians

As it turned out, these tiny holes are needed for the so-called ventilation of the cigarette

Acetaldehyde was shown to alter cellular respiration in cultured microvascular endothelial hBMVEC cells, which mainly comprise the bloodbrain-barrier, thereby suggesting negative effects on bloodbrain-barrier integrity (121).Further, in cultured primary cortical neurons, acetaldehyde impaired mitochondrial respiration via NOX -mediated activation (122), and in brain mitochondria in vitro , acrolein inhibited mitochondrial respiration via complex I (123)