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Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

Air Quality Criteria for Lead Volume II of II - (NEPIS)(EPA) - US ...

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AX5-98<br />

Table AX5-6.12. Genotoxic/Carcinogenic Effects <strong>of</strong> <strong>Lead</strong>—Genotoxicity as it Pertains to Potential Developmental Effects<br />

Compound Assay and Concentration Species Co-exposure Effects Reference<br />

Pb acetate 25–400 mg/kg given i.p as single injection<br />

and animals studied after 24 h<br />

Sperm morphology<br />

Pb acetate 200 or 400 mg/kg given by gavage daily<br />

<strong>for</strong> 5 days<br />

5 animals per group<br />

Sperm Morphology<br />

Male Swiss Mice—<br />

9–12 wks old<br />

Male Swiss Mice—<br />

9–12 wks old<br />

None Pb induced sperm head abnormalities at 50–<br />

100 mg/kg. A lower dose was negative and higher<br />

doses were not done.<br />

Calcium chloride (40 or<br />

80 mg/kg by gavage<br />

daily <strong>for</strong> 3 days given<br />

2 wks after Pb<br />

exposure)<br />

Pb induced sperm abnormalities at 200 and 400<br />

mg/kg. A lower dose was negative and higher doses<br />

were not done. Calcium appeared to block this effect.<br />

Fahmy (1999)<br />

Aboul-Ela (2002)

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