Effects of high-level exposure to lead on NK cell activity and T-lymphocyte functions in workers

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Abstract
1 NK and T cell functions were measured in peripheral blood lymphocytes of workers occupationally exposed to lead. 2 No differences were found in these functions even in those workers with higher levels of blood and urine lead and urinary δ-ALA than the currently accepted biological limit values as compared to controls. 3 We conclude that high chronic exposure to lead is not associated with an impairment or either T- or NK cell functions in man.