Document Detail

Rice as the most influential source of cadmium intake among general Japanese population.
MedLine Citation:
PMID:  12670756     Owner:  NLM     Status:  MEDLINE    
The objective of the present study is to examine whether rice is still a leading source of cadmium (Cd) burden among general populations in Japan. For this purpose, 10 prefectures were selected from all over Japan (including the northern- and southern-most Hokkaido and Okinawa prefecture, respectively). Cadmium levels in urine of never-smoking women (corrected for creatinine; Cd-Ucr) were compared with the rice- and wheat product-based Cd intake, which were estimated from Cd contents in rice and wheat (in the forms of bread, noodle and flour) consumed by residents in the areas, and per-capita daily consumption of rice and wheat. Stepwise multiple regression analysis taking Cd-Ucr as a dependent variable and rice- or wheat product-based Cd intakes as independent variables showed that rice was the most influential and almost exclusive variable with a partial correlation coefficient of 0.770-0.832, explaining 59-69% of total variation in Cd-Ucr. The effects of other sources including wheat were essentially negligible.
Teruomi Tsukahara; Takafumi Ezaki; Jiro Moriguchi; Katsuya Furuki; Shinichiro Shimbo; Naoko Matsuda-Inoguchi; Masayuki Ikeda
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Science of the total environment     Volume:  305     ISSN:  0048-9697     ISO Abbreviation:  Sci. Total Environ.     Publication Date:  2003 Apr 
Date Detail:
Created Date:  2003-04-02     Completed Date:  2003-05-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0330500     Medline TA:  Sci Total Environ     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  41-51     Citation Subset:  IM    
Kyoto Industrial Health Association, 67 Nishinokyo-Kitatsuboicho, Nakagyo-ku, 604-8472, Kyoto, Japan.
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MeSH Terms
Body Burden
Cadmium / pharmacokinetics*,  urine
Food Contamination*
Oryza sativa / chemistry*
Regression Analysis
Risk Assessment
Reg. No./Substance:

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