Long-term use of proton pump inhibitors is associated with increased microbial product translocation, innate immune activation, and reduced immunologic recovery in patients with chronic HIV-1 infection

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ppi 2Long-term use of proton pump inhibitors is associated with increased microbial product translocation, innate immune activation, and reduced immunologic recovery in patients with chronic HIV-1 infection

Abstract

Background:

Translocation of microbial products from the damaged gut causes increased immune activation in HIV. Proton pump inhibitors (PPIs) predispose to bacterial overgrowth in the gut. We hypothesized that long-term use of PPIs is associated with greater microbial translocation and immune activation in HIV.

Methods:

HIV-infected persons on suppressive antiretroviral therapy (ART), including those receiving long-term PPIs (PPI+ group) or not (PPIgroup), were enrolled. We determined CD38+HLA-DR+CD8+(activated) T-cell frequency, and plasma levels of lipopolysaccharide (LPS), LPS binding protein (LBP), soluble CD14 (sCD14), and intestinal fatty acid binding protein (I-FABP).

Results:

We recruited 77 HIV-infected participants (37 PPI+ and 40 PPI), and 20 HIV-uninfected volunteers. PPI+ subjects were older…

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