A dose-finding safety and feasibility study of oral activated charcoal and its effects on the gut microbiota in healthy volunteers not receiving antibiotics

Oral activated charcoal (OAC), a potent adsorbent with no systemic absorption, has been used for centuries to treat poisoning. Recent studies have suggested its potential efficacy in protecting the colonic microbiota against detrimental effects of antibiotics. In a dose-finding safety and feasibilit...

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Main Authors: Armin Rashidi, Sathappan Karuppiah, Maryam Ebadi, Ryan Shanley, Alexander Khoruts, Daniel J. Weisdorf, Christopher Staley
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9197061/?tool=EBI
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author Armin Rashidi
Sathappan Karuppiah
Maryam Ebadi
Ryan Shanley
Alexander Khoruts
Daniel J. Weisdorf
Christopher Staley
author_facet Armin Rashidi
Sathappan Karuppiah
Maryam Ebadi
Ryan Shanley
Alexander Khoruts
Daniel J. Weisdorf
Christopher Staley
author_sort Armin Rashidi
collection DOAJ
description Oral activated charcoal (OAC), a potent adsorbent with no systemic absorption, has been used for centuries to treat poisoning. Recent studies have suggested its potential efficacy in protecting the colonic microbiota against detrimental effects of antibiotics. In a dose-finding safety and feasibility clinical trial, 12 healthy volunteers not receiving antibiotics drank 4 different preparations made of 2 possible OAC doses (12 or 25 grams) mixed in 2 possible solutions (water or apple juice), 3 days a week for 2 weeks. Pre- and post-OAC stool samples underwent 16S rRNA gene sequencing and exact amplicon sequence variants were used to characterize the colonic microbiota. The preferred preparation was 12 grams of OAC in apple juice, with excellent safety and tolerability. OAC did not influence the gut microbiota in our healthy volunteers. These findings provide the critical preliminary data for future trials of OAC in patients receiving antibiotics.
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spelling doaj.art-388eaa45ae8649368619f304942ccf962022-12-22T00:23:55ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01176A dose-finding safety and feasibility study of oral activated charcoal and its effects on the gut microbiota in healthy volunteers not receiving antibioticsArmin RashidiSathappan KaruppiahMaryam EbadiRyan ShanleyAlexander KhorutsDaniel J. WeisdorfChristopher StaleyOral activated charcoal (OAC), a potent adsorbent with no systemic absorption, has been used for centuries to treat poisoning. Recent studies have suggested its potential efficacy in protecting the colonic microbiota against detrimental effects of antibiotics. In a dose-finding safety and feasibility clinical trial, 12 healthy volunteers not receiving antibiotics drank 4 different preparations made of 2 possible OAC doses (12 or 25 grams) mixed in 2 possible solutions (water or apple juice), 3 days a week for 2 weeks. Pre- and post-OAC stool samples underwent 16S rRNA gene sequencing and exact amplicon sequence variants were used to characterize the colonic microbiota. The preferred preparation was 12 grams of OAC in apple juice, with excellent safety and tolerability. OAC did not influence the gut microbiota in our healthy volunteers. These findings provide the critical preliminary data for future trials of OAC in patients receiving antibiotics.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9197061/?tool=EBI
spellingShingle Armin Rashidi
Sathappan Karuppiah
Maryam Ebadi
Ryan Shanley
Alexander Khoruts
Daniel J. Weisdorf
Christopher Staley
A dose-finding safety and feasibility study of oral activated charcoal and its effects on the gut microbiota in healthy volunteers not receiving antibiotics
PLoS ONE
title A dose-finding safety and feasibility study of oral activated charcoal and its effects on the gut microbiota in healthy volunteers not receiving antibiotics
title_full A dose-finding safety and feasibility study of oral activated charcoal and its effects on the gut microbiota in healthy volunteers not receiving antibiotics
title_fullStr A dose-finding safety and feasibility study of oral activated charcoal and its effects on the gut microbiota in healthy volunteers not receiving antibiotics
title_full_unstemmed A dose-finding safety and feasibility study of oral activated charcoal and its effects on the gut microbiota in healthy volunteers not receiving antibiotics
title_short A dose-finding safety and feasibility study of oral activated charcoal and its effects on the gut microbiota in healthy volunteers not receiving antibiotics
title_sort dose finding safety and feasibility study of oral activated charcoal and its effects on the gut microbiota in healthy volunteers not receiving antibiotics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9197061/?tool=EBI
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