石川県梯川流域のCd汚染地住民の腎障害に関する疫学的研究

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Urine samples were collected from 3178 inhabitants of the Kakehashi River basin, an area exposed to Cd, and 294 nonexposed inhabitants of Ishikawa Prefecture. All subjects were over 50 years old. The samples were analyzed for protein, glucose, amino acid, β2-microglobulin and Cd.The mean urinary concentrations of these parameters were higher in the Cd-exposed subjects than in the nonexposed subjects.The concurrent prevalences of proteinuria and glucosuria, as well as those of aminoaciduria and β2-microglobulinuria were higher in the Cd-exposed subjects than in the nonexposed subjects. β2-microglobulin was considered to be the most useful indicator of the renal effects of Cd exposure.In the Cd-exposed subjects, the prevalence of, β2-microgloburinuria was higher in those who ate Cd-polluted rice than in those who ate unpolluted rice.Among them, the prevalence of β2-microgloburinuria increased in men living in the polluted area for over 60 years and in women living there for over 40 years.
日本衛生学会の論文