首页> 外文期刊>The Veterinary Journal >EFFECT OF CHELATING AGENTS ON THE EXCRETION OF COPPER, ZINC AND IRON IN THE BILE AND URINE OF SHEEP
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EFFECT OF CHELATING AGENTS ON THE EXCRETION OF COPPER, ZINC AND IRON IN THE BILE AND URINE OF SHEEP

机译:螯合剂对绵羊胆汁和尿中铜,锌和铁的分泌的影响

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The effect of tetrathiomolybdate (TM), disodium calcium ethylenediamine tetraacetate (EDTA), D-penicillamine (PEN), 2-3 dimercapto-1-propanol (BAL) and dimethyl dithiocarbamate (DDC) administration on biliary and urinary excretion of copper (Cu), zinc (Zn) and iron (Fe) was investigated in sheep on a low Cu diet (Group A) and a high Cu diet (Group B). Only biliary Cu excretion increased significantly (P<0.01) with TM treatment. Urinary; Cu excretion increased (P<0.01) following PEN treatment. TM, EDTA, PEN, BU and DDC adminstration increased Cu excretion via bile and urine by 254, 11, 266, 46 and 16%, respectively in Group A sheep, and by 354, 13, 196, 20 and (-) 31% in Group B sheep. Urinary Zn excretion increased (P<0.01) following EDTA and PEN treatments. Only urinary Fe excretion increased (P<0.01) with EDTA treatment. The results show that TM and PEN are the most efficient decoppering agents, but PEN unlike TM also removes Zn. The major routes of excretion of Cu chelates by TM and PEN are different. TM increases Cu excretion significantly (P<0.05 in Group A and P<0.01 in Group B) in bile with only a slight increase in urinary Cu whereas PEN increases Cu excretion significantly (P<0.01) in urine. Therefore from a therapeutic view, a combination therapy of TM and PEN would be useful to maximize Cu removal from the body.
机译:四硫代钼酸盐(TM),乙二胺四乙酸二钠钙(EDTA),D-青霉胺(PEN),2-3二巯基-1-丙醇(BAL)和二硫代氨基甲酸二甲酯(DDC)施用对铜(Cu)胆汁和尿液排泄的影响),在低铜日粮(A组)和高铜日粮(B组)中对绵羊的锌(Zn)和铁(Fe)进行了研究。 TM治疗仅使胆汁铜排泄显着增加(P <0.01)。泌尿; PEN处理后铜排泄增加(P <0.01)。在A组绵羊中,TM,EDTA,PEN,BU和DDC的施用分别使胆汁和尿液中的铜排泄增加254%,11%,266%,46%和16%,而增加354%,13%,196%,20%和(-)31%在B组绵羊中EDTA和PEN处理后尿锌排泄增加(P <0.01)。 EDTA治疗仅增加尿中铁的排泄(P <0.01)。结果表明,TM和PEN是最有效的脱铜剂,但是PEN与TM不同,它也能去除Zn。 TM和PEN排泄Cu螯合物的主要途径不同。 TM显着增加胆汁中铜的排泄(A组中P <0.05,B组中P <0.01),而尿中Cu仅略有增加,而PEN显着增加尿中Cu的排泄(P <0.01)。因此,从治疗的角度来看,TM和PEN的联合治疗将有助于最大限度地从体内去除Cu。

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