title: Central nervous system dysfunction due to lead exposure.
abstract: Central nervous system dysfunction was investigated in workers at a secondary lead smelter by means of performance tests. Correlations between test scores and zinc protoporphyrin levels, a biological indicator of lead toxicity, are statistically significant. This correlation should prove to be useful in current efforts to evaluate effects of lead exposure.
mesh_terms: D000328:Adult; D000368:Aged; D001519:Behavior / Q000502:physiology; D002490:Central Nervous System / Q000503:physiopathology*; D004781:Environmental Exposure; D006801:Humans; D007854:Lead / Q000097:blood; D007855:Lead Poisoning / Q000097:blood / Q000503:physiopathology*; D008875:Middle Aged; D009460:Neurologic Examination / Q000379:methods; D009784:Occupational Diseases / Q000503:physiopathology*; D011166:Porphyrins / Q000097:blood*; D011524:Protoporphyrins / Q000097:blood*; D015032:Zinc / Q000097:blood
chemical_list: D011166:Porphyrins; D011524:Protoporphyrins; D007854:Lead; D015032:Zinc