Serum autoantibodies in silicosis and non-silicosis cement workers.

Aim: To study serum autoantibodies and immunoglobulin levels in cement workers.

Methods: Blood samples for numerous antibodies were collected from 30 silicosis and 42 non-silicosis cement workers. Spirometry of the silicosis workers was also studied.

Effect of combined occupational exposure to noise and organic solvents on hearing.

Noise exposure has been commonly regarded as the main hazard of occupational hearing loss. Recent studies indicate that several chemicals, including organic solvents have ototoxic effects. This study aimed at evaluating the hearing of workers exposed to both noise and a mixture of organic solvents at concentrations anticipated as safe.

Thyroid functions in paints production workers and the mechanism of oxidative-antioxidants status.

Assessment of occupational exposure to paints production chemicals mainly organic solvents in production of thyroid dysfunction and the mechanism of oxidative-antioxidant imbalance. Triiodothyronine (T(3)), thyroxine (T(4)), malondialdehyde (MDA), nitric oxide (NO) and total antioxidants was measured in 36 workers and 40 controls. T(3) and T(4) were elevated in 18.