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首页> 外文期刊>Environmental Science & Technology >Steroid Fingerprint Analysis of Endangered Caspian Seal (Pusa caspica) through the Gorgan Bay (Caspian Sea)
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Steroid Fingerprint Analysis of Endangered Caspian Seal (Pusa caspica) through the Gorgan Bay (Caspian Sea)

机译：濒临灭绝的Caspian封印（Pusa Caspica）通过Gorgan Bay（Caspian Sea）的类固醇指纹分析

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摘要

The profile of steroid congeners was evaluated in Caspian seals Pusa caspica by age, sex, and tissue-specific bioaccumulation, and compared with that of abiotic matrices (seawater, surface sediment, and suspended particulate materials, SPMs) from Miankaleh Wildlife/Gorgan Bay, (Caspian Sea, Iran). To identify the level of human fecal contamination, Σ25 sterol congeners were measured in all abiotic/biotic samples, revealing coprostanol, a proxy for human feces, as the most abundant sterol (seawater: 45.1-20.3 ng L~(-1); surface sediment: 90.2-70.3 ng g~(-1) dw; SPMs: 187.7- 157.6 ng g~(-1) dw). The quantification of Σ25 sterols in seals followed the order of brain ＞ liver ＞ kidney ＞ heart ＞ blood ＞ spleen ＞ muscle ＞ intestine ＞ blubber ＞ fur, and in both sexes coprostanol level (8.95-21.01% of Σ25s) was higher in blubber and fur, followed by cholesterol in brain, liver, kidney, heart, and blood, cholestanone in intestine and muscle, and β-sitosterol in spleen. Though no age/sex differentiation was observed, the mean concentration of Σ25s was higher in male than females and pup. Different diagnostic ratios revealed sterols originating from human and nonhuman sewage sources. Findings pinpoint the urgent necessity to investigate the ecotoxicity of fecal sterols in mammals, and consequent implications for human health.
机译：通过年龄，性别和组织特异性生物累积在Caspian Seals Pusa Caspica中评估了类固醇同源物的谱，并与非生物基质（海水，表面沉积物和悬浮的颗粒材料，SPMS）与Miankaleh Wildlife / Gorgan Bay相比， （Caspian Sea，伊朗）。为了确定人类粪便污染的水平，在所有非生物/生物样品中测量σ25甾醇同胞，揭示群甾醇，人类粪便代理，作为最丰富的甾醇（海水：45.1-20.3 ng l〜（-1）;表面沉积物：90.2-70.3 ng g〜（-1）dw; spms：187.7-157.6 ng g〜（-1）dw）。密封中σ25甾醇的定量遵循脑>肝脏>肾脏>心脏>血液>脾>肌肉>肠道>毛皮，毛皮和胰蛋白醇水平（σ25s的8.95-21.01％）较高毛皮，随后是脑，肝，肾，心脏和血液，肠道和肌肉中的胆汁素，以及脾脏的β-谷甾醇。虽然没有观察到年龄/性别分化，但男性的平均浓度比女性和小狗更高。不同的诊断比率揭示了来自人和非人污水来源的甾醇。调查结果确定迫切需要调查哺乳动物中粪便甾醇的生态毒性，并因此对人类健康的影响。

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  • 来源
    《Environmental Science & Technology》 |2020年第12期|7339-7353|共15页
  • 作者

    Ali Ranjbar Jafarabadi; Sakineh Mashjoor; Shirin Mohamadjafari Dehkordi; Alireza Riyahi Bakhtiari; Tiziana Cappello;

  • 作者单位

    Department of Environmental Sciences Faculty of Natural Resources and Marine Sciences Tarbiat Modares University Noor Mazandaran 14115-111 Iran;

    Department of Marine biology Faculty of Marine Science and Technology University of Hormozgan Bandar Abbas Iran Marine Pharmaceutical Science Research Center Ahvaz Jundishapur University of Medical Sciences Ahvaz Iran;

    Department of Environmental Sciences Faculty of Natural Resources and Marine Sciences Tarbiat Modares University Noor Mazandaran 14115-111 Iran;

    Department of Environmental Sciences Faculty of Natural Resources and Marine Sciences Tarbiat Modares University Noor Mazandaran 14115-111 Iran;

    Department of Chemical Biological Pharmaceutical and Environmental Sciences University of Messina Messina 98122 Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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