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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2007-4-13
pubmed:abstractText
CYP3A enzyme plays a pivotal role in TAC metabolism. The aim of this study was to analyze retrospectively the influence of CYP3A5 gene polymorphism on TAC pharmacokinetics and pharmacodynamics in 30 teenage kidney transplant recipients. TAC dose, trough blood levels, apparent volume of distribution, as well as blood pressure and antihypertensive therapy obtained at different post-transplant periods, were correlated with the corresponding genotype. Despite a therapeutic monitoring strategy, heterozygotes (CYP3A5*1/*3) displayed a lower TAC blood concentration compared with homozygotes (CYP3A5*3/*3). Therefore, a two-fold increase of the daily TAC dose was required in the heterozygotes to reach the desired therapeutic target level. A significant group by time interaction effect was present for both variables (repeated measures ANOVA: p = 0.002) meaning a significant different pharmacokinetic response in these two cohorts. Mean blood pressure was also elevated in CYP3A5*1/*3 recipients despite similar antihypertensive treatment. This was parallel with an elevated apparent volume of distribution of TAC in this group. Thus, the allele-effect was correlated with one of the most common TAC side-effects suggesting a possible influence of CYP3A5 polymorphism on TAC pharmacodynamics. The authors concluded that a pre-emptive CYP3A5 pharmacogenetic screening could contribute to better individualization of TAC therapy.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
1397-3142
pubmed:author
pubmed:issnType
Print
pubmed:volume
11
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
296-300
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Influence of the CYP3A5 genotype on tacrolimus pharmacokinetics and pharmacodynamics in young kidney transplant recipients.
pubmed:affiliation
Department of Surgical Sciences, University of Milan, Medical School, Milan, Italy. mariano.ferraresso@unimi.it
pubmed:publicationType
Journal Article