Subcellular distribution of trace elements in kidney of a mother-fetus pair of Dall's porpoises (Phocoenoides dalli)

文献类型： 外文期刊

第一作者： Yang, Jian

作者： Yang, Jian;Yang, Jian;Miyazaki, Nobuyuki;Kunito, Takashi;Anan, Yasumi;Tanabe, Shinsuke

作者机构：

关键词： Dall's porpoise;trace element;subcellular distribution;metallothionein (MT);fetus;kidney;MONODON-MONOCEROS;HEAVY-METALS;CADMIUM;METALLOTHIONEIN;LIVER;ACCUMULATION;TOXICITY;TISSUES;PROTEIN;TURTLES

期刊名称：CHEMOSPHERE （ 影响因子：7.086； 五年影响因子：6.956 ）

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年卷期：

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收录情况： SCI

摘要： Total and subcellular renal Zn, Cu, Se, Mn, V, Hg, Cd and Ag were determined by a mother-fetus pair of Dall's porpoises (Phocoenoides dalli). All element concentrations in the maternal individual were higher than those in the fetal individual. Most of total renal elements studied were present in the cytosol of both animals. In maternal cytosol, Mn, Hg and Ag were present in high molecular weight substances (HMW); Se was in low molecular weight substances (LMW); Zn, Cu, and Cd were in metallothionein (MT), mostly; and the distribution of V in percentage among the three renal cytosolic fractions was similar. In fetal cytosol, Zn, Mn, Hg, V, Cd, and Ag were present in HMW, Cu was present in MT, mostly. in contrast, Se was observed mostly in both LMW and HMW. MT isoforms were characterized. Three obvious peaks in retention time were found in either the maternal or fetal MT. The highest elemental ion intensities were in the 7.8 min peak for the mother, and in the 4.3 min peak for the fetus, respectively, implying that different NIT isoforms may be closely associated with elemental accumulation between maternal and fetal renal cytosols. (c) 2007 Elsevier Ltd. All rights reserved.

分类号： X51

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