title: Inhibitory effect of apigenin on benzo(a)pyrene-mediated genotoxicity in Swiss albino mice.
abstract: Apigenin, a bioflavonoid, is abundantly present in fruits and vegetables and possesses potential chemopreventive properties against a wide variety of chronic diseases. In this study we investigated the anti-genotoxic effects of apigenin against a known genotoxicant, benzo(a)pyrene (B(a)P) (125 mg kg(-1) orally) toxicity in Swiss albino mice. B(a)P administration led to induction of cytochrome P-450 (CYP), aryl hydrocarbon hydroxylase (AHH) and DNA strand breaks (P < 0.001), which was suppressed by apigenin (2.5 and 5 mg kg(-1) orally) dose dependently (P < 0.001). B(a)P-induced depletion in the level of reduced glutathione (GSH), quinone reductase (QR) and glutathione-S-transferase (GST) was also shown to be restored by apigenin pre-treatment (P < 0.001). A simultaneous significant and dose-dependent reduction was noted in DNA strand breaks and in-vivo DNA damage (P < 0.001), which gives some insight into restoration of DNA integrity in modulator groups. These results strongly support the protective nature of apigenin against B(a)P-induced toxicity.
authors.affiliation: Section of Chemoprevention and Nutrition Toxicology, Department of Medical Elementology and Toxicology, Jamia Hamdard (Hamdard University), Hamdard Nagar, New Delhi 110062, India.
authors.forename: Tajdar Husain
authors.initials: TH
authors.lastname: Khan
authors.forename: Tamanna
authors.initials: T
authors.lastname: Jahangir
authors.forename: Lakshmi
authors.initials: L
authors.lastname: Prasad
authors.forename: Sarwat
authors.initials: S
authors.lastname: Sultana
mesh_terms: D000284:Administration, Oral; D000818:Animals; D016587:Antimutagenic Agents / Q000737:chemistry / Q000494:pharmacology*; D047310:Apigenin / Q000737:chemistry / Q000494:pharmacology*; D001189:Aryl Hydrocarbon Hydroxylases / Q000378:metabolism; D001564:Benzo(a)pyrene / Q000633:toxicity*; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism; D004249:DNA Damage; D053938:DNA Fragmentation / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D004587:Electrophoresis, Agar Gel; D005978:Glutathione / Q000378:metabolism; D005982:Glutathione Transferase / Q000378:metabolism; D008099:Liver / Q000187:drug effects* / Q000378:metabolism / Q000473:pathology; D008297:Male; D051379:Mice; D015394:Molecular Structure; D009152:Mutagenicity Tests / Q000379:methods; D016660:NAD(P)H Dehydrogenase (Quinone) / Q000378:metabolism; D018384:Oxidative Stress / Q000187:drug effects
chemical_list: D016587:Antimutagenic Agents; D001564:Benzo(a)pyrene; D047310:Apigenin; D003577:Cytochrome P-450 Enzyme System; D001189:Aryl Hydrocarbon Hydroxylases; D016660:NAD(P)H Dehydrogenase (Quinone); D005982:Glutathione Transferase; D005978:Glutathione