|Document ID (ISN)||59478|
|ISSN - Serial title
||0355-3140 - Scandinavian Journal of Work, Environment and Health
|Convention or series no.
||Prescott E., Netterstrĝm B., Faber J., Hegedüs L., Suadicani P., Christensen J.M.
||Effect of occupational exposure to cobalt blue dyes on the thyroid volume and function of female plate painters
||Apr. 1992, Vol.18, No.2, p.101-104. 17 ref.
||The effect of industrial cobalt exposure on thyroid volume and function was determined for 61 female plate painters exposed to cobalt blue dyes in two Danish porcelain factories and 48 unexposed referents. Thyroid volume was determined by ultrasonography. The cobalt blue dyes were used in one of two forms, cobalt aluminate (insoluble) and cobalt-zinc silicate (semisoluble). Only the subjects exposed to semisoluble cobalt had a significantly increased urinary cobalt content (1.17µg.mmol-1 versus 0.13µg.mmol-1, p<0.0001). These subjects also had increased levels of serum thyroxine (T4) and free thyroxine (FT4I) (p=0.0001 and 0.0029, respectively) unaltered serum thyroid stimulating hormone (TSH), and marginally reduced 3,5,3'-triiodothyronine (T3), whereas thyroid volume tended to be lower (p=0.14). The group exposed to insoluble cobalt did not differ significantly in any thyroid-related parameters. No correlation between urinary cobalt and FT4I or thyroid volume was found. The study demonstrates an effect of cobalt on thyroid hormone metabolism.
||cobalt; dyes; pottery industry; painting; women; thyroid disorders
||thyroid gland; thyroid function; comparative study; determination in urine; ultrasonic examinations; exposure tests
||D - Periodical articles
|Country / State or Province||Denmark|
||Materials, glass and ceramics
|Broad subject area(s)
Glass, pottery and related materials