Electrocardiographic Changes in Workers Occupationally Exposed to Lead

Neurobehavioural testing in workers occupationally exposed to lead.

Although the toxic effects of lead on the central nervous system have been well described, the blood concentration at which lead begins to exert adverse effects remains the focus of debate. A meta-analysis of occupational studies was conducted evaluating the association between neurobehavioural testing results and moderate blood lead concentrations.

[Electrocardiographic changes in workers habitually exposed to carbon monoxide].

ORGANOPHOSPHATE-INDUCED CHRONIC TOXICITY IN OCCUPATIONALLY EXPOSED WORKERS

Organophosphate chronic toxicity has been evaluated in this study. Biological screening for organophosphate insecticide-exposed workers is mostly recommended for mixers, loaders, formulators and spraymen. We have studied 17 occupationally exposed persons to pesticides. Using Ellman's colorimetric method, their plasma cholinesterase activities have been measured. Results show that the appear...

Thyroxine and Free Thyroxine Levels in Workers Occupationally Exposed to Inorganic Lead

BACKGROUND The effects of lead exposure on thyroid function are unclear. METHODS Serum thyroxine (T4) was evaluated among 137 lead-exposed workers and 83 non-exposed workers. Free thyroxine (FT4) was evaluated among a subset of these workers. Exposure metrics included blood lead level (BLL), which reflects recent exposure, zinc protoporphyrin (ZPP), a marker of intermediate-duration lead expo...

Hormonal Perturbations in Occupationally Exposed Nickel Workers

BACKGROUND Nickel exposure is recognized as an endocrine disruptor because of its adverse effects on reproduction. AIM This study was designed to investigate the possible testiculo-hormonal perturbations on workers occupationally exposed to nickel and to assess its effects on human male sexual function. METHODS Cross-sectional comparative study, comprising 105 electroplating male non-smoker...