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Determination of multiple mycotoxins in paired plasma and urine samples to assess human exposure in Nanjing, China

文献类型： 外文期刊

作者： Fan, Kai 1 ; Xu, Juanjuan 2 ; Jiang, Keqiu 1 ; Liu, Xing 1 ; Meng, Jiajia 1 ; Di Mavungu, Jose Diana 3 ; Guo, Wenbo 1 ; Z 1 ;

作者机构： 1.Shanghai Acad Agr Sci, Inst Agrofood Stand & Testing Technol, Shanghai Key Lab Protected Hort Technol, Shanghai 201403, Peoples R China

2.Nanjing Univ, Sch Med, Nanjing Jinling Hosp, Reprod Med Ctr, Nanjing 210002, Jiangsu, Peoples R China

3.Univ Ghent, Fac Pharmaceut Sci, Dept Bioanal, Lab Food Anal, Ottergemsesteenweg 460 9000, B-9000 Ghent, Belgium

4.Michigan State Univ, Dept Plant Soil & Microbial Sci, E Lansing, MI 48824 USA

关键词： Mycotoxins; Exposure assessment; Biomarker; Plasma; Urine

期刊名称：ENVIRONMENTAL POLLUTION （ 影响因子：8.071； 五年影响因子：8.35 ）

ISSN： 0269-7491

年卷期： 2019 年 248 卷

页码：

收录情况： SCI

摘要： This study was conducted to investigate mycotoxin exposure in 260 rural residents (age 18-66 years) in Nanjing, China. Paired plasma and first morning urine samples were analyzed for 26 mycotoxin biomarkers, including 12 parent mycotoxins and 14 mycotoxin metabolites, by an ultra-high-performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) method. Mycotoxins and their metabolites were detected in 95/260 (36.5%) plasma samples and 144/260 (55.4%) urine samples. The most prevalent mycotoxin in plasma was ochratoxin A (OTA), with the incidence of 27.7% (range 0.312 -9.18 mu g/L), while aflatoxin B-1-lysine (AFB(1)-lysine) (incidence 19.6%, range 10.5-74.5 pg/mg albumin), fumonisin B-1 (FB1) (incidence 2.7%, range 0.305-0.993 mu g/L), deoxynivalenol (DON) (incidence 2.3%, range 1.39-5.53 mu g/L), zearalenone (ZEN) (incidence 6.5%, range 0.063-0.418 mu g/L) and zearalanone (ZAN) (incidence 1.2%, range 0.164-0346 mu g/L) were also detected in plasma samples. Deoxynivalenol-15-glucuronide (DON-15-GlcA) was the most frequently detected urinary mycotoxin, with the incidence of 43.8% (range 0.828-37.7 mu g/L). DON (incidence 10.0%, range 1.39-14.7 mu g/L), DON-3-glucuronide (DON-3-GlcA) (incidence 15.8%, range 0.583-5.84 mu g/L), aflatoxin M-1 (AFM(1)) (incidence 10.4%, range 0.125-0.464 mu g/L), ZAN (incidence 7.7%, range 0.106-1.82 mu g/L), ZEN (incidence 6.9%, range 0.056 -0.311 mu g/L), FB1 (incidence 3.1%, range 0.230-1.33 mu g/L), T-2 toxin (incidence 2.3%, range 0.248-3.61 mu g/L) and OTA (incidence 1.2%, range 0.153-0.557 mu g/L) were also found in urine samples. Based on the plasma or urinary levels, the daily intakes of AFB(1), FB1, ZEN, DON and OTA were estimated. The results showed that the investigated rural dwellers were exposed to multiple mycotoxins, especially to carcinogenic mycotoxin AFB(1) with a mean daily intake of 0.41 mu g/kg.bw/day, thereby underlining a potential public health concern. To the best of our knowledge, this is the first study to evaluate human exposure to mycotoxins with direct measurements of multiple mycotoxins in paired plasma and urine samples for over 200 subjects of a single population. (C) 2019 Elsevier Ltd. All rights reserved.

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