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November 1935

POSSIBLE RELATION OF LEAD INTOXICATION TO MULTIPLE SCLEROSIS

Author Affiliations

CHICAGO

From the Department of Nervous and Mental Diseases, Northwestern University Medical School.

Arch NeurPsych. 1935;34(5):994-1000. doi:10.1001/archneurpsyc.1935.02250230066005
Abstract

Lead is a ubiquitous substance and, as pointed out by Dingwall and McKibben,1 may be found in plants growing on soil containing lead. One should therefore recover lead from human excreta after the ingestion of foods containing this substance. Analysis of the feces of persons who have had no unusual exposure to lead shows 0.08 mg. per gram of ash.2 Rabinowitch, Dingwall and Mackay3 stated that, while the finding of lead in the feces does not mean that lead has been absorbed, urinalysis over a period of ten years at the Montreal General Hospital revealed that in unselected cases the average lead content of the urine is 0.1 mg. per liter. These results have been corroborated by others, and it is the consensus that the difference between the lead content of the excreta in health and that in disease is quantitative and not qualitative.

Attention was drawn

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