PMID- 27690565 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20191120 IS - 1715-5320 (Electronic) IS - 1715-5312 (Linking) VI - 41 IP - 10 DP - 2016 Oct TI - Proton-pump inhibitor therapy and vitamin B(12) status in an inpatient hospital setting. PG - 1071-1076 LID - 10.1139/apnm-2016-0020 [doi] AB - The risk for impaired vitamin B(12) status increases with age, as does the use of proton pump inhibitors (PPI). Long-term use of PPIs is associated with several nutritional deficiencies including B(12). Currently, there are no recommendations for B(12) screening among patients taking PPIs. Data were abstracted on B(12) concentrations, B(12)-containing supplement use, medications, and select hematological values from a retrospective chart review of 658 adults, 391 with serum B(12) concentrations, admitted to 6 different medical units at 2 regional hospitals in Southwestern Ontario between 2010 and 2012. We found no difference between PPI users and nonusers and serum B(12) concentrations (404 +/- 224 vs 369 +/- 213 pmol/L; P = 0.0690). This may be due to use of B(12) containing multivitamins in 41% of PPI users. Regression modelling found that aging increases the odds of having an impaired B(12) status (<220 pmol/L) by 1.4 times and those using B(12) supplements are almost 4 times more likely to have an impaired status. Mean corpuscular volume was not related to B(12) status. In this population, older PPI users are more likely to be using multivitamins, which may delay nutritional deficiencies. However, the lower B(12) concentrations of PPI users taking only B(12) supplements is a concern and requires further research. Finally, physicians need to be aware that mean corpuscular volume is no longer recommended as an effective biomarker for B(12) screening and updated screening protocols need to be used to reduce the possibility of adverse neurological effects from impaired B(12) status. FAU - Hartman, Brenda AU - Hartman B AD - a Department of Nutritional Sciences, FitzGerald Building, University of Toronto, 150 College St, Toronto, ON M5S 3E2. AD - b The Hospital for Sick Children, 555 University Ave, Toronto, ON M5G 1X8. FAU - Donnelly-VanderLoo, Mary AU - Donnelly-VanderLoo M AD - c Brescia University College, 1285 Western Rd, London, ON N6G 1H2. AD - d London Health Sciences Centre, 800 Commissioners Rd E, London, ON N6A 5W9. FAU - Watson, Tiffany AU - Watson T AD - c Brescia University College, 1285 Western Rd, London, ON N6G 1H2. FAU - O'Connor, Colleen AU - O'Connor C AD - c Brescia University College, 1285 Western Rd, London, ON N6G 1H2. FAU - Madill, Janet AU - Madill J AD - c Brescia University College, 1285 Western Rd, London, ON N6G 1H2. LA - eng PT - Journal Article DEP - 20160623 PL - Canada TA - Appl Physiol Nutr Metab JT - Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme JID - 101264333 OTO - NOTNLM OT - B12 OT - inhibiteur de la pompe a protons (<< IPP >>) OT - mean corpuscular volume (MCV) OT - nutrition OT - proton pump inhibitor (PPI) OT - supplements OT - supplements OT - volume globulaire moyen (<< MCV >>) EDAT- 2016/10/04 06:00 MHDA- 2016/10/04 06:01 CRDT- 2016/10/04 06:00 PHST- 2016/10/04 06:00 [pubmed] PHST- 2016/10/04 06:01 [medline] PHST- 2016/10/04 06:00 [entrez] AID - 10.1139/apnm-2016-0020 [doi] PST - ppublish SO - Appl Physiol Nutr Metab. 2016 Oct;41(10):1071-1076. doi: 10.1139/apnm-2016-0020. Epub 2016 Jun 23.