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Toxicology of Industrial Compounds

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294 TESTING AND EVALUATION FOR REPRODUCTIVE TOXICITY<br />

Table 20.10 Detecting effects on males<br />

Notes:<br />

a Unknown=data not available or not examined<br />

A, organ weights, histopathology, serum chemistry.<br />

B, sperm analysis, count, motility, morphology.<br />

Data derived from an ongoing survey <strong>of</strong> 150 substances for which an effect on<br />

males has been claimed, mostly from human studies. To date 80 <strong>of</strong> the substances<br />

have been evaluated. Results indicate that use <strong>of</strong> a prolonged premating treatment<br />

period (>2 wks) has not been helpful for indicating effects on humans and is no<br />

better than use <strong>of</strong> a short premating period alone (

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