Pharmacological role of efflux transporters: Clinical implications for medication use during breastfeeding

The World Health Organisation recommends exclusive breastfeeding for the first six months of an infant’s life and in combination with solid food thereafter. This recommendation was introduced based on research showing numerous health benefits of breastfeeding for both the mother and the infant. Howe...

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Main Authors: Ahmadzai, Hilai, Tee, Lisa, Crowe, Andrew
Format: Journal Article
Published: Baishideng Publishing Group Inc 2014
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/23197
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author Ahmadzai, Hilai
Tee, Lisa
Crowe, Andrew
author_facet Ahmadzai, Hilai
Tee, Lisa
Crowe, Andrew
author_sort Ahmadzai, Hilai
building Curtin Institutional Repository
collection Online Access
description The World Health Organisation recommends exclusive breastfeeding for the first six months of an infant’s life and in combination with solid food thereafter. This recommendation was introduced based on research showing numerous health benefits of breastfeeding for both the mother and the infant. However, there is always concern regarding the transfer of medications from mother to their breastfed baby via milk. Pharmacokinetic properties of a drug are usually used to predict its transferability into breast milk. Although most drugs are compatible with breastfeeding, cases of toxic drug exposure have been reported. This is thought to be due to active transport mechanisms whereby efflux transporter proteins expressed in the epithelial cells of the mammary gland actively secrete drugs into milk. An example of such efflux transporters including the breast cancer resistance protein which is strongly induced during lactation and this could result in contamination of milk with the substrates of this transporter which may place the suckling infant at risk of toxicity. Furthermore, there is little known about the substrate specificity of most efflux transporters as we have highlighted in this review. There also exists some degree of contradiction between in vivo and in vitro studies which makes it difficult to conclusively predict outcomes and drug-drug interactions.
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spelling curtin-20.500.11937-231972017-09-13T13:59:01Z Pharmacological role of efflux transporters: Clinical implications for medication use during breastfeeding Ahmadzai, Hilai Tee, Lisa Crowe, Andrew ABC transporters Breastfeeding Active efflux transporters Mammary gland P-glycoprotein Breast milk Breast cancer resistance protein Lactation The World Health Organisation recommends exclusive breastfeeding for the first six months of an infant’s life and in combination with solid food thereafter. This recommendation was introduced based on research showing numerous health benefits of breastfeeding for both the mother and the infant. However, there is always concern regarding the transfer of medications from mother to their breastfed baby via milk. Pharmacokinetic properties of a drug are usually used to predict its transferability into breast milk. Although most drugs are compatible with breastfeeding, cases of toxic drug exposure have been reported. This is thought to be due to active transport mechanisms whereby efflux transporter proteins expressed in the epithelial cells of the mammary gland actively secrete drugs into milk. An example of such efflux transporters including the breast cancer resistance protein which is strongly induced during lactation and this could result in contamination of milk with the substrates of this transporter which may place the suckling infant at risk of toxicity. Furthermore, there is little known about the substrate specificity of most efflux transporters as we have highlighted in this review. There also exists some degree of contradiction between in vivo and in vitro studies which makes it difficult to conclusively predict outcomes and drug-drug interactions. 2014 Journal Article http://hdl.handle.net/20.500.11937/23197 10.5497/wjp.v3.i4.153 Baishideng Publishing Group Inc fulltext
spellingShingle ABC transporters
Breastfeeding
Active efflux transporters
Mammary gland
P-glycoprotein
Breast milk
Breast cancer resistance protein
Lactation
Ahmadzai, Hilai
Tee, Lisa
Crowe, Andrew
Pharmacological role of efflux transporters: Clinical implications for medication use during breastfeeding
title Pharmacological role of efflux transporters: Clinical implications for medication use during breastfeeding
title_full Pharmacological role of efflux transporters: Clinical implications for medication use during breastfeeding
title_fullStr Pharmacological role of efflux transporters: Clinical implications for medication use during breastfeeding
title_full_unstemmed Pharmacological role of efflux transporters: Clinical implications for medication use during breastfeeding
title_short Pharmacological role of efflux transporters: Clinical implications for medication use during breastfeeding
title_sort pharmacological role of efflux transporters: clinical implications for medication use during breastfeeding
topic ABC transporters
Breastfeeding
Active efflux transporters
Mammary gland
P-glycoprotein
Breast milk
Breast cancer resistance protein
Lactation
url http://hdl.handle.net/20.500.11937/23197