Buchet Jean-Pierre, Heilier Jean-François, Bernard Alfred, Lison Dominique, Jin Taiyi, Wu Xunwei, Kong Qinhu, Nordberg Gunnar
Unité de toxicologie industrielle et médecine du travail, Université Catholique de Louvain, Clos Chapelle-aux-Champs, 30.54, 1200 Brussels, Belgium.
Int Arch Occup Environ Health. 2003 Mar;76(2):111-20. doi: 10.1007/s00420-002-0402-9. Epub 2002 Dec 10.
In mice, the renal toxicity of arsenic (As) and cadmium (Cd) has been shown to be exacerbated by the simultaneous administration of both elements. To verify the existence of such an interaction in humans, cohorts slightly (Belgian) and moderately (Chinese) exposed to both elements were examined.
Biological indicators of exposure (Cd in urine and in blood; As in urine) and renal effect parameters (retinol binding protein (RBP); beta(2)-microglobulin (beta(2)M); albumin (ALB); N-acetyl-beta-glucosaminidase (NAG) in urine) were determined and their relationships studied by multiple regression analyses.
Changes in renal effect parameters could be ascribed to Cd body burden. RBP and beta(2)M urinary concentration were influenced by exposure to As only in Chinese women, directly and in interaction with Cd exposure.
A synergistic action of As on the tubular effects of Cd is observed in women moderately exposed to these elements and leads to RBP urinary excretion slightly above normal values.
在小鼠中,已表明同时给予砷(As)和镉(Cd)会加剧它们的肾脏毒性。为了验证在人类中是否存在这种相互作用,对轻度(比利时人)和中度(中国人)同时接触这两种元素的队列进行了检查。
测定了接触的生物学指标(尿和血中的Cd;尿中的As)和肾脏效应参数(视黄醇结合蛋白(RBP);β2-微球蛋白(β2M);白蛋白(ALB);尿中的N-乙酰-β-氨基葡萄糖苷酶(NAG)),并通过多元回归分析研究了它们之间的关系。
肾脏效应参数的变化可归因于Cd的体内负荷。仅在中国女性中,RBP和β2M的尿浓度受到As暴露的影响,直接影响以及与Cd暴露的相互作用。
在中度接触这些元素的女性中观察到As对Cd的肾小管效应具有协同作用,并导致RBP尿排泄略高于正常值。