title: The effects analysis of two neonicotinoid insecticides on in vitro maturation of porcine oocytes using hanging drop monoculture method.
abstract: Acetamiprid (ACE) and imidacroprid (IMI) are known neonicotinoid insecticides with strong affinities for the insect-selective nicotinic acetylcholine receptor. These provide insect control by hyperstimulating insect nerves and are used for agricultural pest management. However, it has also been reported that ACE and IMI affect mammalian reproductive function. We determined the effects of ACE and IMI on the in vitro maturation of porcine oocytes. Significant decreases in nuclear maturation rates were observed in the ACE or IMI-exposed groups. Also, in matured oocytes from the ACE or IMI-exposed groups, irregular chromosomes were observed. Our results suggest that ACE and IMI exposure was detrimental to porcine oocytes and the extent of the effects depends on the concentration of exposure.
authors.affiliation: Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai 981-8555, Japan.
authors.forename: Sadamasa
authors.initials: S
authors.lastname: Ishikawa
authors.forename: Kou
authors.initials: K
authors.lastname: Hiraga
authors.forename: Yuuki
authors.initials: Y
authors.lastname: Hiradate
authors.forename: Kentaro
authors.initials: K
authors.lastname: Tanemura
mesh_terms: D000818:Animals; D018929:Cell Culture Techniques / Q000379:methods; D002869:Chromosome Aberrations / Q000187:drug effects*; D057166:High-Throughput Screening Assays / Q000379:methods*; D007093:Imidazoles / Q000633:toxicity; D066298:In Vitro Techniques; D007306:Insecticides / Q000633:toxicity*; D000073943:Neonicotinoids; D009574:Nitro Compounds / Q000633:toxicity; D009865:Oocytes / Q000187:drug effects* / Q000254:growth & development*; D011725:Pyridines / Q000633:toxicity; D011978:Receptors, Nicotinic / Q000378:metabolism; D013552:Swine; D018675:Toxicity Tests / Q000379:methods*
chemical_list: D007093:Imidazoles; D007306:Insecticides; D000073943:Neonicotinoids; D009574:Nitro Compounds; D011725:Pyridines; D011978:Receptors, Nicotinic; C082359:imidacloprid; C464485:acetamiprid