Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1992-4-10
pubmed:abstractText
The analytical performance of specific and nonspecific fluorescence polarization immunoassays (FPIAs, Abbott Laboratories) for cyclosporine was compared. Both specific and nonspecific FPIAs demonstrated excellent between-run coefficients of variation (5.9% vs. 3.9%) at three levels of control, and a high degree of between-center reproducibility (r2 greater than 0.96). In addition, the correlation between cyclosporine levels measured by specific and nonspecific FPIAs was statistically significant, though imperfect, in both renal (r2 = 0.70) and cardiac transplant patients (r2 = 0.55). In kidney transplant patients, the nonspecific/specific ratio was significantly higher in patients with serum bilirubin concentration exceeding 3 mg/dl (5.9 +/- 2.6 vs. 2.8 +/- 1.1), due to impaired elimination of cyclosporine metabolites in the bile. The nonspecific/specific ratio was also significantly higher in heart transplant patients early (less than 1 month) posttransplant compared with patients in the late posttransplant period (3.4 +/- 0.8 vs. 2.9 +/- 0.8). The Abbott FPIA provides a highly precise method for measuring cyclosporine, with a turnaround time of 15-20 min. The specific monoclonal FPIA has the additional advantage of measuring primarily unchanged cyclosporine and thus has an imperfect correlation with the nonspecific polyclonal FPIA. Together with clinical data, the use of FPIAs may help to improve the efficiency of cyclosporine therapeutic drug monitoring.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0163-4356
pubmed:author
pubmed:issnType
Print
pubmed:volume
14
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
42-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
Relative performance of specific and nonspecific fluorescence polarization immunoassay for cyclosporine in transplant patients.
pubmed:affiliation
Department of Pharmacotherapy and Research, Tampa General Hospital, Florida 33601.
pubmed:publicationType
Journal Article, Comparative Study