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Evaluation of capillary electrophoresis to quantificate nebivolol on solid pharmaceutical formulation and on enantioselective binding to human plasma proteins.

Grant number: 12/16597-3
Support type:Scholarships in Brazil - Master
Effective date (Start): November 01, 2012
Effective date (End): July 31, 2014
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal researcher:Cristiane Masetto de Gaitani
Grantee:Ana Débora Nunes Pinheiro
Home Institution: Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil


Nebivolol is an antihypertensive specific ²1-adrenergic block drug. It is commercialized as a racemic mixture, D(+)(-)-nebivolol e L(-)(-)-nebivolol. The both enantiomers have different pharmacological activities, which suggests a different pharmacokinetics as well. Nebivolol metabolism is complex and it is subjected to genetic polymorphism of CYP2D6, responsible enzime by nebivolol metabolism. The kinect of nebivolol is enantiosselective on pacients extensive metabolisers, but not on poor metabolisers. Despite of this information, a few is known about nebivolol enantiosselective binding to plasma proteins. It is known that nebivolol binding is around 98% though. A technique used to quantify drugs on the drug-protein binding is capillary electrophoresis (CE). This technique allows the analysis of many compounds and it has been used to chiral drugs analysis. Therefore, the aim of this work is to evaluate enantioselective binding of nebivolol to plasma proteins by CE. The lack of information about this subject, suggests that this is an unpublished work.

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