Linked Life Data

2758407

Source:http://linkedlifedata.com/resource/pubmed/id/2758407

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
17
pubmed:dateCreated
1989-9-15
pubmed:abstractText
1,2-Dimethylhydrazine (DMH) is a potent procarcinogen with selectivity for the colon. Recently, it has been demonstrated that levels of N1-acetylspermidine were elevated 2-3-fold in colonic tumors induced by this agent compared to control tissues. To determine whether alterations in the urinary levels of this acetylated polyamine or other polyamines were useful biochemical markers for colon cancer in this experimental model, rats were given s.c. injections of DMH (20 mg/kg body weight/week) or diluent for 26 weeks. One week after the last injection, control and DMH-treated animals were placed in separate metabolic cages and their urine was collected for 24 h. The urinary levels (expressed as nmol/mg creatinine) of putrescine, spermidine, spermine, N1-acetylspermidine, and N8-acetylspermidine were then analyzed by high-performance liquid chromatography. Animals from each group were then sacrificed and their colons were examined for tumors. The results of these studies demonstrated that the urinary level of N1-acetylspermidine was an excellent biochemical marker for colonic tumors induced by DMH. At 18.3 nmol/mg creatinine, N1-acetylspermidine was 100% sensitive and specific for colon cancer. Moreover, urinary levels of N1-acetylspermidine were better for this purpose than the N1-acetylspermidine/N8-acetylspermidine molar ratio, a marker previously suggested to be more specific for certain cancers than free polyamines.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0008-5472
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
49
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4721-3
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Urinary excretion of N1-acetylspermidine and other acetylated and free polyamines in the 1,2-dimethylhydrazine model of experimental rat colon cancer.
pubmed:affiliation
Department of Medicine, University of Chicago Hospitals and Clinics, Pritzker School of Medicine, Illinois 60637.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.