Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2003-8-6
pubmed:abstractText
Mean corpuscular volume may correlate with erythrocyte 6-thioguanine nucleotide concentrations in patients treated with azathioprine and 6-mercaptourine. We conducted a study of 166 patients with inflammatory bowel disease treated with azathioprine or 6-mercaptopurine to determine the relationship between mean corpuscular volume and erythrocyte 6-thioguanine nucleotide concentrations, disease activity as measured by the Inflammatory Bowel Disease Questionnaire (active disease <170, remission >170), and leukopenia. Blood was submitted for mean corpuscular volume, whole blood 6-thioguanine nucleotide concentration, and leukocyte count. The mean +/- SD mean corpuscular volume during treatment was 94.7 +/- 6.6 fL and the mean +/- SD change in mean corpuscular volume was 7.5 +/- 6.3 fL. There were significant correlations between mean corpuscular volume and erythrocyte 6-thioguanine nucleotide concentration (r(s) = 0.33, p < 0.001) and between change from baseline in mean corpuscular volume and erythrocyte 6-thioguanine nucleotide concentration (r(s) = 0.26, p = 0.001). There was no correlation between Inflammatory Bowel Disease Questionnaire scores and mean corpuscular volume values (r(s) = 0.01, p = 0.94). The mean corpuscular volume values in 55 patients with active disease and 111 patients in remission were similar (95.1 vs. 94.5 fL, p = 0.57). There was a weak negative correlation between the mean corpuscular volume and the leukocyte count, (r(s) = -0.18, p = 0.022). In patients with inflammatory bowel disease treated with azathioprine or 6-mercaptopurine, mean corpuscular volume and change from baseline in mean corpuscular volume correlated with erythrocyte 6-thioguanine nucleotide concentrations and negatively with leukocyte counts, but did not correlate with disease activity as measured by the Inflammatory Bowel Disease Questionnaire. Measurement of mean corpuscular volume is a simple and inexpensive alternative to measurement of 6-thioguanine nucleotide concentrations in patients treated with azathioprine or 6-mercaptopurine.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1078-0998
pubmed:author
pubmed:issnType
Print
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
237-45
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:12902847-6-Mercaptopurine, pubmed-meshheading:12902847-Adolescent, pubmed-meshheading:12902847-Adult, pubmed-meshheading:12902847-Aged, pubmed-meshheading:12902847-Aged, 80 and over, pubmed-meshheading:12902847-Azathioprine, pubmed-meshheading:12902847-Biological Markers, pubmed-meshheading:12902847-Endpoint Determination, pubmed-meshheading:12902847-Erythrocyte Indices, pubmed-meshheading:12902847-Erythrocytes, pubmed-meshheading:12902847-Female, pubmed-meshheading:12902847-Guanine Nucleotides, pubmed-meshheading:12902847-Humans, pubmed-meshheading:12902847-Immunosuppressive Agents, pubmed-meshheading:12902847-Inflammatory Bowel Diseases, pubmed-meshheading:12902847-Leukocyte Count, pubmed-meshheading:12902847-Male, pubmed-meshheading:12902847-Middle Aged, pubmed-meshheading:12902847-Questionnaires, pubmed-meshheading:12902847-Severity of Illness Index, pubmed-meshheading:12902847-Thionucleotides, pubmed-meshheading:12902847-Treatment Outcome
pubmed:year
2003
pubmed:articleTitle
Erythrocyte mean corpuscular volume as a surrogate marker for 6-thioguanine nucleotide concentration monitoring in patients with inflammatory bowel disease treated with azathioprine or 6-mercaptopurine.
pubmed:affiliation
Division of Gastroenterology and Hepatology, Division of Clinical Pharmacology, and Section of Biostatistics, Mayo Clinic, Rochester, MN 55905, U.S.A.
pubmed:publicationType
Journal Article, Clinical Trial, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't