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Pediatr Res. 1999 Jan;45(1):133-7.

The detection of Shiga toxins in the kidney of a patient with hemolytic uremic syndrome.

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Department of Infectious Diseases Research, National Children's Medical Research Center, Tokyo, Japan.


Infection of Shiga toxin (Stx)-producing Escherichia coli induces hemolytic uremic syndrome (HUS) in 10 to 15% of cases in infants and young children. Although the endothelial cell damage induced by Stx is widely believed to be a primary event of renal dysfunction in HUS, the precise mechanism remains to be elucidated. We were able to examine the kidney obtained at autopsy of a child who died after HUS associated with Stx-producing Escherichia coli O157:H7 infection, and immunohistochemistry indicated the deposition of Stxl and Stx2 in a portion of the distal tubular epithelia. To our knowledge, this is the first report to show the presence of Stx in human tissue of a patient with HUS, and the results obtained in this study provide evidence that Stx indeed migrates into the kidney and binds to renal tubules during Stx-producing Escherichia coli infection.

[Indexed for MEDLINE]

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