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Expression of mRNA (A) and protein (B) for nNOS, eNOS and iNOS in liver of mice. a–e Mean values with different letters in the same bar represent significant differences (p < 0.05) according to Duncan’s multiple-range test. VC: vitamin C (200 mg/kg body weight); KTP: Kuding tea polyphenols (200 mg/kg body weight); ITP: insect tea polyphenols (200 mg/kg body weight).
