Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1986-10-20
pubmed:abstractText
Dietary administration of cyclosporine (CsA) to rats induces lymphoproliferative disorders involving the gut lymphoid plaques with frequent mucosal ulceration. In this study, we investigated whether administration of a known chemical carcinogen prior to CsA treatment modifies the development of the lesions induced by CsA. Male Sprague-Dawley rats were given either a single i.p. injection of N-methyl N-nitrosourea (MNU) (25 mg/kg) or the solvent--and one week thereafter they were fed a diet containing 0.011% CsA. Control rats were fed a basal diet with or without prior MNU treatment. Of the rats that received MNU and CsA, 60% developed adenocarcinomas of the small and large intestine arising in the regions of the intestinal lymphoid plaques. Only 1 of 12 rats given MNU followed by a basal diet developed adenocarcinoma. No tumors developed in rats treated with CsA alone, but there was atypical proliferation of the intestinal mucosa in conjunction with lymphoid hyperplasia of the gut. The mucosal damage secondary to CsA-induced lymphoid lesions probably acted as a promoting stimulus for the development of intestinal carcinomas.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0041-1337
pubmed:author
pubmed:issnType
Print
pubmed:volume
42
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
297-302
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Enhancement of induction of intestinal adenocarcinomas by cyclosporine in rats given a single dose of N-methyl N-nitrosourea.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.