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Proton-pump inhibitor use is associated with lower urinary magnesium excretion. | LitMetric

Proton-pump inhibitor use is associated with lower urinary magnesium excretion.

Nephrology (Carlton)

Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA; Division of Nephrology, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.

Published: December 2014

AI Article Synopsis

Article Abstract

Aims: Although multiple recent studies have confirmed an association between chronic proton-pump inhibitor (PPI) use and hypomagnesaemia, the physiologic explanation for this association remains uncertain. To address this, we investigated the association of PPI use with urinary magnesium excretion.

Methods: We measured 24-hour urine magnesium excretion in collections performed for nephrolithiasis evaluation in 278 consecutive ambulatory patients and determined PPI use from contemporaneous medical records.

Results: There were 50 (18%) PPI users at the time of urine collection. The mean daily urinary magnesium was 84.6 ± 42.8 mg in PPI users, compared with 101.2 ± 41.1 mg in non-PPI users (P = 0.01). In adjusted analyses, PPI use was associated with 10.54 ± 5.30 mg/day lower daily urinary magnesium excretion (P = 0.05). Diuretic use did not significantly modify the effect of PPI on urinary magnesium. As a control, PPI use was not associated with other urinary indicators of nutritional intake.

Conclusions: Our findings suggest that PPI use is associated with lower 24-hour urine magnesium excretion. Whether this reflects decreased intestinal uptake due to PPI exposure, or residual confounding due to decreased magnesium intake, requires further study.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4313878PMC
http://dx.doi.org/10.1111/nep.12330DOI Listing

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