کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10223928 1701064 2018 35 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Metals(loids) targeting fish eyes and brain in a contaminated estuary - Uncovering neurosensory (un)susceptibility through bioaccumulation, antioxidant and morphometric profiles
ترجمه فارسی عنوان
فلزات (لایید) هدف قرار دادن چشم های ماهی و مغز در یک خورده آلوده - کشف حساسیت عصبی (غیر) از طریق تجزیه، تجزیه و تحلیل آنتی اکسیدان و مورفومتریک
کلمات کلیدی
سمیت عصبی عصبی، دفاع از آنتیاکسیدانی، استریولوژی مغز، ماهی وحشی استراحتگاه ها،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی
This study examined the susceptibility of fish (Liza aurata) eyes and brain to metals(loids) contamination under realistic exposure conditions. A multidimensional approach was applied to fish caught at a chronically contaminated site (BAR) and at a reference site of the Tagus estuary (Portugal), which comprised metals(loids) accumulation in eyes and brain together with a battery of enzymatic and non-enzymatic antioxidants, as well as brain morphometry (i.e. cell density). Trace element levels in the blood, gills, liver and kidney allowed interpretations on their preferential pathway(s) to the eyes and brain. Metals(loids) accumulation pointed out the elevated vulnerability of the fish eyes at BAR, probably related with the direct waterborne uptake. Pb uptake in L. aurata eyes could be associated both with water and indirect pathways. At the most contaminated site, metals(loids) were on the basis of pro-oxidant conditions in the ocular tissues, while no indication of toxicity was recorded in the brain. Overall, the results disclosed a differential bioaccumulation among fish organs, suggesting that, in the L. aurata population studied, metal organotropism underlie the lower susceptibility of the brain comparing to the eyes. However, mechanisms remain little understood and further work is needed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Environmental Research - Volume 140, September 2018, Pages 403-411
نویسندگان
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