Document Detail


Teratogenic effects of noise and cadmium in mice: does noise have teratogenic potential?
MedLine Citation:
PMID:  8501767     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The teratogenicity of combined exposure to noise and cadmium was studied in mice. ICR mice were exposed to a wide octave-band of noise at 100 dB(C) for 6 h on d 7 of pregnancy in one of two ways: continuous exposure or intermittent (15 min on/15 min off). Cadmium sulfate at 1 or 2 mg/kg was intraperitoneally injected on d 7 of pregnancy. Four groups were exposed to both cadmium and noise. On d 18 of pregnancy, fetuses were examined for external and skeletal malformations. Another experiment was performed with two other patterns of noise exposure: continuous exposure for 3 h, and intermittent exposure (5 min on/5 min off) for 6 h on d 7 of pregnancy. In the groups exposed to continuous noise for 6 h, total percentages of malformed fetuses were significantly higher than that in the control group, but there were no significant increases of total percentages of fetal malformations in the combined treatment groups in comparison with the groups given the same dose of cadmium alone. The percentages of skeletally malformed fetuses in groups exposed to 6 h of continuous noise were significantly higher than in groups that received saline or the same dose of cadmium. There were no significant differences in the total percentages of malformed fetuses between the control group and the groups exposed to a total of 3 h of noise, whether continuously or intermittently. Although combined treatment with cadmium and noise resulted in an increase of total percentages of malformed fetuses compared to the same dose of cadmium alone, the interactions between cadmium and noise showed no synergistic effect on teratogenicity. The magnitude of teratogenicity due to noise is much weaker than that of cadmium, and is therefore easily masked by that of cadmium in statistical tests of the significance of differences.
Authors:
M Murata; H Takigawa; H Sakamoto
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of toxicology and environmental health     Volume:  39     ISSN:  0098-4108     ISO Abbreviation:  J Toxicol Environ Health     Publication Date:  1993 Jun 
Date Detail:
Created Date:  1993-06-25     Completed Date:  1993-06-25     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  7513622     Medline TA:  J Toxicol Environ Health     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  237-45     Citation Subset:  IM    
Affiliation:
Department of Hygiene, Mie University School of Medicine, Tsu City, Japan.
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MeSH Terms
Descriptor/Qualifier:
Abnormalities, Drug-Induced*
Animals
Cadmium / toxicity*
Cadmium Compounds*
Congenital Abnormalities / etiology*
Female
Fetus / abnormalities*,  drug effects
Mice
Mice, Inbred ICR
Noise / adverse effects*
Pregnancy
Sulfates*
Time Factors
Chemical
Reg. No./Substance:
0/Cadmium Compounds; 0/Sulfates; 10124-36-4/cadmium sulfate; 7440-43-9/Cadmium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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