Welders may suffer permanent neurological damage from exposure to manganese
A study by Minnesota’s Mayo Clinic finds that
welders may suffer permanent neurological damage from exposure to manganese
Researchers examined the medical records of eight men referred to the
clinic for nervous system complaints between 1999 and 2005. All had been
welders for at least a year and all had a biological marker for manganese
accumulation in the brain.
Dr. Keith Josephs said that all the men had done welding in situations
where the ventilation was not adequate.
The survey linked manganese exposure to Parkinsonian syndrome, multifocal
myoclonus or lightning-fast twitches that occur all over the body, problems
with balance, hearing or dizziness and cognitive impairment. Six of the
patients suffered from cognitive impairment, headaches and tremor and five
had balance problems.
Josephs said that the study shows that symptoms from manganese exposure
are more common and more subtle than thought.
The men were put on low-manganese diets. But Josephs said there is no
sure cure for manganese exposure, and the damage may be permanent.
Source : www.sciencedaily.com