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Effect of maternal cadmium exposure on postnatal development and tissue cadmium, copper and zinc concentrations in rats

✍ Scribed by Boguslaw Barański

Publisher
Springer-Verlag
Year
1986
Tongue
English
Weight
698 KB
Volume
58
Category
Article
ISSN
0340-5761

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✦ Synopsis

Administration of 60 ppm cadmium (Cd) in drinking water from the 1st to the 20th day of gestation to female rats did not affect the viability, body weight gain, food, and water consumption of offspring. The blood hemoglobin level was reduced in 2-week-old females and males but not in 16-week-old offspring. Hematocrit and serum glucose level were not affected at either age. Cadmium concentration in the intestinal wall was increased in both age groups, with marginal uptake in other organs. A decrease in copper (Cu) concentration was found in the brain of 2-week-old offspring of both sexes and of 16-week-old females. The brain zinc (Zn) concentration was decreased only in 16-week-old animals. The physical and neuromuscular development of offspring before weaning was not impaired by maternal Cd treatment. The alterations in Cu and Zn metabolism were associated with reduced locomotor activity and affected open-field behavior in adult offspring of either sex and with decreased avoidance acquisition in adult female offspring. The results obtained suggest a relationship between the reduced brain Cu and Zn levels and CNS dysfunction in adult offspring of female rats exposed to Cd during gestation.

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