Assessment of vitamin B12 tissue stores in elderly proton pump inhibitor users

Background: Adults over the age of 65 years are more prone to gastroesophageal reflux and, as such, are commonly prescribed proton pump inhibitors (PPIs). PPIs inhibit gastric acid secretion which can have adverse effects on vitamin B12 absorption. This quasi-experimental study was conducted to dete...

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Main Authors: Judith M. Lukaszuk, David A. Walker, Masih Shokrani, Josephine Umoren, Eric J. Norman
Format: Article
Language:English
Published: Taylor & Francis Group 2017-01-01
Series:Cogent Medicine
Subjects:
Online Access:http://dx.doi.org/10.1080/2331205X.2017.1389639
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author Judith M. Lukaszuk
David A. Walker
Masih Shokrani
Josephine Umoren
Eric J. Norman
author_facet Judith M. Lukaszuk
David A. Walker
Masih Shokrani
Josephine Umoren
Eric J. Norman
author_sort Judith M. Lukaszuk
collection DOAJ
description Background: Adults over the age of 65 years are more prone to gastroesophageal reflux and, as such, are commonly prescribed proton pump inhibitors (PPIs). PPIs inhibit gastric acid secretion which can have adverse effects on vitamin B12 absorption. This quasi-experimental study was conducted to determine whether chronic use (≥1 year) of proton pump inhibitors (PPIs) results in decreased vitamin B12 in adults aged 68–94 years, as indicated by increased urinary methylmalonic acid (uM-MA). Methods: Fifteen men and women who had been using PPIs daily for a minimum of one year were recruited. Fifteen subjects not using PPIs were age (±3 years) and gender matched to the subjects taking PPIs. Tissue stores of vitamin B12 were determined using uM-MA. Results: The majority of subjects in this study resided in assisted care living facilities (55.66%) and the remaining subjects (43.33%) were free living. There were no significant differences in uM-MA levels between those using PPIs (Mdn = 1.1 μg uM-MA/mg creatinine), and those not using PPIs (Mdn = 1.1 μg uM-MA/mg creatinine) (p = 0.75). Conclusion: Chronic use of PPIs did not alter vitamin B12 in healthy individuals aged 68–94 years. Larger studies are indicated to validate these findings.
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spelling doaj.art-b7aea659b93b4058877c428629f10f032022-12-22T03:37:50ZengTaylor & Francis GroupCogent Medicine2331-205X2017-01-014110.1080/2331205X.2017.13896391389639Assessment of vitamin B12 tissue stores in elderly proton pump inhibitor usersJudith M. Lukaszuk0David A. Walker1Masih Shokrani2Josephine Umoren3Eric J. Norman4Northern Illinois UniversityNorthern Illinois UniversityNorthern Illinois UniversityNorthern Illinois UniversityNorman Clinical Laboratory, Inc.Background: Adults over the age of 65 years are more prone to gastroesophageal reflux and, as such, are commonly prescribed proton pump inhibitors (PPIs). PPIs inhibit gastric acid secretion which can have adverse effects on vitamin B12 absorption. This quasi-experimental study was conducted to determine whether chronic use (≥1 year) of proton pump inhibitors (PPIs) results in decreased vitamin B12 in adults aged 68–94 years, as indicated by increased urinary methylmalonic acid (uM-MA). Methods: Fifteen men and women who had been using PPIs daily for a minimum of one year were recruited. Fifteen subjects not using PPIs were age (±3 years) and gender matched to the subjects taking PPIs. Tissue stores of vitamin B12 were determined using uM-MA. Results: The majority of subjects in this study resided in assisted care living facilities (55.66%) and the remaining subjects (43.33%) were free living. There were no significant differences in uM-MA levels between those using PPIs (Mdn = 1.1 μg uM-MA/mg creatinine), and those not using PPIs (Mdn = 1.1 μg uM-MA/mg creatinine) (p = 0.75). Conclusion: Chronic use of PPIs did not alter vitamin B12 in healthy individuals aged 68–94 years. Larger studies are indicated to validate these findings.http://dx.doi.org/10.1080/2331205X.2017.1389639urinary methylmalonic acidvitamin b12 deficiencyelderlyproton pump inhibitors
spellingShingle Judith M. Lukaszuk
David A. Walker
Masih Shokrani
Josephine Umoren
Eric J. Norman
Assessment of vitamin B12 tissue stores in elderly proton pump inhibitor users
Cogent Medicine
urinary methylmalonic acid
vitamin b12 deficiency
elderly
proton pump inhibitors
title Assessment of vitamin B12 tissue stores in elderly proton pump inhibitor users
title_full Assessment of vitamin B12 tissue stores in elderly proton pump inhibitor users
title_fullStr Assessment of vitamin B12 tissue stores in elderly proton pump inhibitor users
title_full_unstemmed Assessment of vitamin B12 tissue stores in elderly proton pump inhibitor users
title_short Assessment of vitamin B12 tissue stores in elderly proton pump inhibitor users
title_sort assessment of vitamin b12 tissue stores in elderly proton pump inhibitor users
topic urinary methylmalonic acid
vitamin b12 deficiency
elderly
proton pump inhibitors
url http://dx.doi.org/10.1080/2331205X.2017.1389639
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