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Please use this identifier to cite or link to this item: http://repository.li.mahidol.ac.th/dspace/handle/123456789/26587
Title: Localization of Shiga toxins of enterohaemorrhagic Escherichia coli in kidneys of paediatric and geriatric patients with fatal haemolytic uraemic syndrome
Authors: Urai Chaisri
Michio Nagata
Hisao Kurazono
Hiroshi Horie
Pongsri Tongtawe
Hideo Hayashi
Teruo Watanabe
Pramuan Tapchaisri
Manas Chongsa-Nguan
Wanpen Chaicumpa
Mahidol University
University of Tsukuba
Okayama University
Chiba Children's Hospital
Keywords: Immunology and Microbiology;Medicine
Issue Date: 1-Jan-2001
Citation: Microbial Pathogenesis. Vol.31, No.2 (2001), 59-67
Abstract: Haemolytic uraemic syndrome (HUS) is characterized by haemolytic anaemia, thrombocytopenia and renal failure. Infection with enterohaemorrhagic Escherichia coli (EHEC), mainly O157:H7, has been strongly implicated as the major cause of HUS in children. The pathogenesis of HUS caused by the infection is not well understood and the defined sites of Stx in kidney of EHEC-infected humans has not been clearly demonstrated. The aim of this study was to investigate and compare the locations of Stx deposition in kidneys of paediatric and geriatric patients who died from enterohaemorrhagic E. coli O157 (EHEC) associated HUS, using an immunoperoxidase staining of the tissues. The study revealed that binding of Stx was relatively less and limited only to the renal tubules of an adult case (81 years old), while more binding was found at both renal tubules and glomeruli of an infant case (21 months old). The Stx binding in the infant's glomeruli was at podocytes, mesangial and endothelial cells. It has been known that young children are more susceptible than adults to HUS. One possibility for this is that the more extensive binding of the Stx to the kidney tissue of the paediatric patient might be due to the higher synthesis and expression of Stx receptors, i.e. Gb3, in infants and less so in the aged individuals. However, other alternatives are possible, for example, the difference in stage of HUS in individual patients. Thus it is too early to draw any conclusion on this enigma and further investigation is required. © 2001 Academic Press.
URI: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=0034924996&origin=inward
http://repository.li.mahidol.ac.th/dspace/handle/123456789/26587
ISSN: 08824010
Appears in Collections:Scopus 2001-2005

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