title: [Mechanism of damage of DNA induced by carbaryl and heavy metal ions].
abstract: The effect of heavy metals on the adduct of carbaryl and calf thymus DNA in vitro was studied using fluorescence and UV spectrum. The results showed that heavy metals can influence the carbaryl quenching constant and the number of binding sites, and the order of is Pb2+ >Ag2+ >Cu2+ >Ni2+ >Co2+ >Zn2+ >Cd2+ >Cr2+. The UV spectrum study showed that the heavy metal ions can change the double helix structure of ctDNA, and the order of this ability is Pb2+ >Cd2+ >Ag+ >Co2+ Zn2t approximately Cu2+ >Ni2+ >Cr+.
authors.affiliation: Key Laboratory of Pesticide Chemistry & Application Technology of Ministry of Agriculture, Department of Applied Chemistry, China Agricultural University, Beijing 100094, China.
authors.forename: Li-shuan
authors.initials: LS
authors.lastname: Liu
authors.forename: Xin
authors.initials: X
authors.lastname: Wang
authors.forename: Bao-yuan
authors.initials: BY
authors.lastname: Yang
authors.forename: Ying
authors.initials: Y
authors.lastname: Sun
mesh_terms: D012721:Carbaryl / Q000633:toxicity*; D004247:DNA / Q000737:chemistry; D018736:DNA Adducts / Q000032:analysis; D004249:DNA Damage; D007306:Insecticides / Q000633:toxicity*; D019216:Metals, Heavy / Q000633:toxicity*; D013050:Spectrometry, Fluorescence
chemical_list: D018736:DNA Adducts; D007306:Insecticides; D019216:Metals, Heavy; D004247:DNA; D012721:Carbaryl