Cadmium‐109 metabolism in mice. III. Organ retention in mice ovariectomized after experiencing multiple rounds of gestation and lactation
作者:
BartlettD. Whelton,
DavidP. Peterson,
ElizabethS. Moretti,
MarykaH. Bhattacharyya,
期刊:
Journal of Toxicology and Environmental Health
(Taylor Available online 1993)
卷期:
Volume 38,
issue 2
页码: 147-157
ISSN:0098-4108
年代: 1993
DOI:10.1080/15287399309531708
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Organ retention of109Cd was studied in multiparous female mice 6 wk after ovariectomy or sham‐control surgery. Females previously had experienced from three to five rounds of gestation/lactation during a maximum of 5 successive, 42‐d reproductive periods. Throughout the experiment, mice were provided with tracer amounts of109Cd in drinking water as well as stable Cd appropriate for the itai‐itai experience in solid diets otherwise sufficient or deficient in nutrient quality. For sufficient‐diet females, organ109Cd content and concentration values were somewhat lower in the ovariectomized group compared to the sham control group. For deficient‐diet females, the opposite trend occurred. When ovariectomized groups were compared with round 5 breeder groups of the same dietary experience, in almost all instances organ109Cd content and concentration values were lower in the ovariectomized animals. Exceptions to this trend occurred in hepatic and especially renal tissues, where109Cd concentrations were higher in the deficient‐diet, ovariectomized group. Finally, when the deficient‐diet, ovariectomized group was compared with its sufficient‐diet counterpart, significantly higher109Cd content values were found for liver, kidneys, and whole body (minus CI tract) in the former group. Conversely, when the same tissue content values were compared between the sham‐control groups, differences without exception proved to be nonsignificant.
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