کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8850474 | 1618761 | 2018 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chronic brain toxicity response of juvenile Chinese rare minnows (Gobiocypris rarus) to the neonicotinoid insecticides imidacloprid and nitenpyram
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Chronic brain toxicity response of juvenile Chinese rare minnows (Gobiocypris rarus) to the neonicotinoid insecticides imidacloprid and nitenpyram Chronic brain toxicity response of juvenile Chinese rare minnows (Gobiocypris rarus) to the neonicotinoid insecticides imidacloprid and nitenpyram](/preview/png/8850474.png)
چکیده انگلیسی
Imidacloprid and nitenpyram are widely used neonicotinoid pesticides worldwide and were observed to adversely affect non-target aquatic organisms. In this study, the toxic effect of imidacloprid and nitenpyram on the brain of juvenile Chinese rare minnows (Gobiocypris rarus) was investigated by determining the oxidative stress, 8-hydroxy-2-deoxyguanosine (8-OHdG) content and acetylcholinesterase (AChE) activity. The superoxide dismutase (SOD) activities did not significantly change after long-term exposure to imidacloprid and nitenpyram. A noticeable increase of catalase (CAT) activities was observed on the brain tissues under 0.1â¯mg/L imidacloprid and under all nitenpyram treatments (pâ¯<â¯0.05). The malondialdehyde (MDA) content increased markedly under 2.0â¯mg/L imidacloprid and 0.1â¯mg/L nitenpyram treatments (pâ¯<â¯0.05). The glutathione (GSH) content in the brain significantly increased under 0.5 and 2.0â¯mg/L imidacloprid (pâ¯<â¯0.05). A significant decrease was observed in the mRNA levels of Cu/Zn-sod under 2.0â¯mg/L imidacloprid and those of cat under 0.1 and 0.5â¯mg/L nitenpyram (pâ¯<â¯0.05). The mRNA levels of gpx1 clearly decreased under 2.0â¯mg/L imidacloprid and under 0.1â¯mg/L nitenpyram (pâ¯<â¯0.05). The treatments of 0.1 and 0.5â¯mg/L nitenpyram decreased cat expression levels markedly (pâ¯<â¯0.05). 2.0â¯mg/L imidacloprid raised the 8-OHdG content. The AChE activities increased markedly under 0.5 and 2.0â¯mg/L imidacloprid while clearly decreasing under 2.0â¯mg/L nitenpyram (pâ¯<â¯0.05). Therefore, our results indicate that imidacloprid and nitenpyram might cause adverse effects on juvenile Chinese rare minnows brain. Notably, imidacloprid had greater impacts on juvenile rare minnows compared to nitenpyram.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 210, November 2018, Pages 1006-1012
Journal: Chemosphere - Volume 210, November 2018, Pages 1006-1012
نویسندگان
Xue Tian, Wenjie Yang, Dong Wang, Yue Zhao, Ruihua Yao, Lekuan Ma, Chazhong Ge, Xiaoliang Li, Zeyu Huang, Li He, Wentao Jiao, Aijun Lin,