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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1999-6-22
pubmed:abstractText
Rapidly progressive renal fibrosis after a slimming regimen including Chinese herbs containing aristolochic acid (AA) has been identified as Chinese-herb nephropathy (CHN). We reported urothelial atypia in three patients with CHN, with the subsequent development in one patient of overt transitional cell carcinoma (TCC). Therefore, it was decided to remove the native kidneys, as well as the ureters, in all patients with CHN. Nineteen kidneys and ureters removed during and/or after renal transplantation from 10 patients were studied to assess critically urothelial lesions and to characterize the cellular expression of p53, a tumor-suppressor gene overexpressed in several types of malignancies. Multifocal high-grade flat TCC in situ (carcinoma in situ; CiS) was observed, mainly in the upper urinary tract, in four patients, a prevalence of 40%. In one of those patients, a superficially invasive flat TCC of the right upper ureter, as well as two additional foci of noninvasive papillary TCC, were found in the right pelvis and left lower ureter, respectively. This patient also presented recurrent noninvasive papillary TCC of the bladder. Furthermore, in all cases, multifocal, overall moderate atypia was found in the medullary collecting ducts, pelvis, and ureter. All CiS and papillary TCC, as well as urothelial atypia, overexpressed p53. These results show that the intake of Chinese herbs containing AA has a dramatic carcinogenic effect. Carcinogenesis is associated with the overexpression of p53, which suggests a role for a p53 gene mutation. The relationship of this mutation with the reported presence of AA DNA adducts in the kidney remains to be explored.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1523-6838
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1011-7
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Urothelial lesions in Chinese-herb nephropathy.
pubmed:affiliation
Departments of Pathology, Nephrology, Renal and Pancreatic Transplantation, and Urology, Université Catholique de Louvain, Brussels, Belgium. cosyns@anps.ucl.ac.be
pubmed:publicationType
Journal Article