In-vitro displacement interaction of atenolol and amlodipine on binding with bovine serum albumin when co-administered

The binding of atenolol (selective β1-blocker) and amlodipine (calcium channel blocker) to bovine serum albumin (BSA) was studied by equilibrium dialysis method in order to have an insight into the binding chemistry of these two to BSA. Free atenolol concentration was increased due to addition of am...

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Main Author: Md. Ashraful Alam, Md. Abdul Awal, Mahbub Mostofa, Md. Kamrul Islam and Nusrat Subhan
Format: Article
Language:English
Published: Bangladesh Pharmacological Society 2007-06-01
Series:Bangladesh Journal of Pharmacology
Subjects:
Online Access:http://www.bdjpharmacol.com/journalbdps0201/020120.pdf
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author Md. Ashraful Alam, Md. Abdul Awal, Mahbub Mostofa, Md. Kamrul Islam and Nusrat Subhan
author_facet Md. Ashraful Alam, Md. Abdul Awal, Mahbub Mostofa, Md. Kamrul Islam and Nusrat Subhan
author_sort Md. Ashraful Alam, Md. Abdul Awal, Mahbub Mostofa, Md. Kamrul Islam and Nusrat Subhan
collection DOAJ
description The binding of atenolol (selective β1-blocker) and amlodipine (calcium channel blocker) to bovine serum albumin (BSA) was studied by equilibrium dialysis method in order to have an insight into the binding chemistry of these two to BSA. Free atenolol concentration was increased due to addition of amlodipine which reduced the binding of the compounds to BSA. However, the free fraction was increased to a level as it was expected from direct competitive displacement while the free atenolol concentration was increased according to increasing the amlodipine concentration when only the BSA was present. The result obtained when the binding site was blocked by sufficient amount of amlodipine was that the increment of free concentration of atenolol was prominent. When no amlodipine was added the free concentration of atenolol was only 28% whereas this release was 93 % to 98.01% when amlodipine was added with increasing concentration.
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spelling doaj.art-0bb43ddf03b140d4a8c2f0bb1d70f1362022-12-21T19:59:28ZengBangladesh Pharmacological SocietyBangladesh Journal of Pharmacology1991-007X1991-00882007-06-01212026In-vitro displacement interaction of atenolol and amlodipine on binding with bovine serum albumin when co-administeredMd. Ashraful Alam, Md. Abdul Awal, Mahbub Mostofa, Md. Kamrul Islam and Nusrat SubhanThe binding of atenolol (selective β1-blocker) and amlodipine (calcium channel blocker) to bovine serum albumin (BSA) was studied by equilibrium dialysis method in order to have an insight into the binding chemistry of these two to BSA. Free atenolol concentration was increased due to addition of amlodipine which reduced the binding of the compounds to BSA. However, the free fraction was increased to a level as it was expected from direct competitive displacement while the free atenolol concentration was increased according to increasing the amlodipine concentration when only the BSA was present. The result obtained when the binding site was blocked by sufficient amount of amlodipine was that the increment of free concentration of atenolol was prominent. When no amlodipine was added the free concentration of atenolol was only 28% whereas this release was 93 % to 98.01% when amlodipine was added with increasing concentration.www.bdjpharmacol.com/journalbdps0201/020120.pdfequilibrium dialysisatenololamlodipineinteraction
spellingShingle Md. Ashraful Alam, Md. Abdul Awal, Mahbub Mostofa, Md. Kamrul Islam and Nusrat Subhan
In-vitro displacement interaction of atenolol and amlodipine on binding with bovine serum albumin when co-administered
Bangladesh Journal of Pharmacology
equilibrium dialysis
atenolol
amlodipine
interaction
title In-vitro displacement interaction of atenolol and amlodipine on binding with bovine serum albumin when co-administered
title_full In-vitro displacement interaction of atenolol and amlodipine on binding with bovine serum albumin when co-administered
title_fullStr In-vitro displacement interaction of atenolol and amlodipine on binding with bovine serum albumin when co-administered
title_full_unstemmed In-vitro displacement interaction of atenolol and amlodipine on binding with bovine serum albumin when co-administered
title_short In-vitro displacement interaction of atenolol and amlodipine on binding with bovine serum albumin when co-administered
title_sort in vitro displacement interaction of atenolol and amlodipine on binding with bovine serum albumin when co administered
topic equilibrium dialysis
atenolol
amlodipine
interaction
url http://www.bdjpharmacol.com/journalbdps0201/020120.pdf
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