Clinical Research

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Research

Antibiotics

Validation of a Hand‐Held Point‐of‐Care Device to Measure Breath Hydrogen and Its Utility in Detecting Response to Antibiotic Treatment. Barahona G et al., Dig Dis Sci 2024

The use of post-prandial breath hydrogen to monitor antibiotic-induced changes in the activity of the gut microbiome, ACG 2022

BMI

Body Weight and Stool Form Alter Diurnal Breath Gas Levels, ACG 2025

The influence of body weight on gastrointestinal function, DDW 2024

Constipation

Elucidating the diurnal pattern of intestinal gas production and its relationship to stool form and symptoms, DDW 2024

Relationships between bowel movements and basal levels of breath hydrogen and methane as measured by a portable handheld app-connected device, ACG 2024

Diarrhea

Elucidating the diurnal pattern of intestinal gas production and its relationship to stool form and symptoms, DDW 2024

Relationships between bowel movements and basal levels of breath hydrogen and methane as measured by a portable handheld app-connected device, ACG 2024

FODMAPs

Impact of Short Duration FODMAP Restriction on Breath Gases and Gastrointestinal Symptoms. Pathipati MP et al., Clin Transl Gastroenterol 2025

Breath Test Responses to Key FODMAP Substrates in a Symptomatic Cohort, ACG 2025

Distinct Breath Gas Profiles In Response To Commonly Consumed Fermentable Carbohydrates, DDW 2025

The use of non-fasting breath gas levels to predict response to a FODMAP restricted diet, ACG 2024

Portable hydrogen breath test correlates with ingestion of FODMAP containing foods, DDW 2023

Food intolerance

Validity of a Portable Breath Analyser (AIRE) for the Assessment of Lactose Malabsorption. Shrestha A et al., Nutrients 2019

Breath Test Responses to Key FODMAP Substrates in a Symptomatic Cohort, ACG 2025

Distinct Breath Gas Profiles In Response To Commonly Consumed Fermentable Carbohydrates, DDW 2025

Prebiotics

Utility of a consumer-friendly portable hydrogen breath analyser device for monitoring colonic fermentation and sensation in response to supplemental fiber, DDW 2022

The individualized gut microbiome response to 2’-Fucosyllactose (2’-FL) is captured using an app-connected breath tester, ACG 2022

Portable breath hydrogen testing and microbiome analysis identifies prebiotic-induced increases in colonic fermentation and Bifidobacterium, ACG 2020

Portable breath hydrogen testing and microbiome analysis identifies prebiotic-induced increases in colonic fermentation and Bifidobacterium, BSG 2020

RPM

Impact of Short Duration FODMAP Restriction on Breath Gases and Gastrointestinal Symptoms. Pathipati MP et al., Clin Transl Gastroenterol 2025

Validation of a Hand‐Held Point‐of‐Care Device to Measure Breath Hydrogen and Its Utility in Detecting Response to Antibiotic Treatment. Barahona G et al., Dig Dis Sci 2024

Diurnal Variation in Breath Hydrogen and Methane Reflects Meal Timing in a Large Real-World Cohort, ACG 2025

Diurnal, age-, and sex-related variations in hydrogen and methane excretion as detected by a hand-held personal gas analyzer, DDW 2025

Elucidating the diurnal pattern of intestinal gas production and its relationship to stool form and symptoms, DDW 2024

Comparison of weekday and weekend dietary, symptom and breath gas profiles in adults with GI symptoms, ACG 2024

The use of non-fasting breath gas levels to predict response to a FODMAP restricted diet, ACG 2024

Portable Breath Hydrogen correlates with ingestion of FODMAP containing foods, DDW 2023

SIBO

Validation of a Hand‐Held Point‐of‐Care Device to Measure Breath Hydrogen and Its Utility in Detecting Response to Antibiotic Treatment. Barahona G et al., Dig Dis Sci 2024

Use of a remote hydrogen breath tester for the diagnosis of small intestinal bacterial overgrowth, BSG 2022

Breath hydrogen responses measured by a novel portable hydrogen breath analyzer and smart phone app used at home can distinguish normal subjects from patients with suspected SIBO, DDW 2021

Postprandial breath hydrogen using a portable hand-held app-connected device to predict the presence of small intestinal bacterial overgrowth as well as the response to antibiotic treatment, ACG 2021

Validation

Validation of a Hand‐Held Point‐of‐Care Device to Measure Breath Hydrogen and Its Utility in Detecting Response to Antibiotic Treatment. Barahona G et al., Dig Dis Sci 2024

Validity of a Portable Breath Analyser (AIRE) for the Assessment of Lactose Malabsorption. Shrestha A et al., Nutrients 2019

Comparison of an at-home hydrogen methane breath analysis device with reference benchtop devices, ACG 2023

Comparison between an ultra-portable, low-cost hydrogen breath analysis device and an existing gold-standard device, DDW 2019

A pilot validation study of an at-home hydrogen breath test device, BSG 2019

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