“Furthermore, compared with … treatment, 30 mM glucose … BH4 level (P = 0.0001) and guanosine triphosphate cyclohydrolase I expression (P < 0.001), whereas it increased peroxynitrite level (P = 0.0003), … all be reversed by propofol (P = 0.0045, P < 0.001, P = 0.0001 vs 30 mM glucose treatment, respectively).”