Chronic manganese intoxication.
We report six cases of chronic manganese intoxication in workers at a ferromanganese factory in Taiwan. Diagnosis was confirmed by assessing increased manganese concentrations in the blood, scalp, and pubic hair. In addition, increased manganese levels in the environmental air were established. The patients showed a bradykinetic-rigid syndrome indistinguishable from Parkinson's disease that responded to treatment with levodopa.
Huang
C C
CC
Department of Neurology, Chang Gung Medical College Hospital, Taipei, Taiwan, Republic of China.
Chu
N S
NS
Lu
C S
CS
Wang
J D
JD
Tsai
J L
JL
Tzeng
J L
JL
Wolters
E C
EC
Calne
D B
DB
D000328:Adult; D005260:Female; D006197:Hair / Q000032:analysis; D006801:Humans; D020149:Manganese Poisoning; D008669:Metallurgy; D009784:Occupational Diseases / Q000139:chemically induced* / Q000175:diagnosis; D010302:Parkinson Disease, Secondary / Q000139:chemically induced* / Q000175:diagnosis; D013624:Taiwan