Publications by authors named "John Wo"

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A New International Scheme for the Classification and Management of Clinical Outcomes Post-gastric Peroral Endoscopic Myotomy.
Yervant Ichkhanian, Marita Salame, John M Wo, Thomas V Nowak, Sarah Stainko

Clin Gastroenterol Hepatol· December 2025

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Safety of same-day discharge after gastric peroral endoscopic myotomy in patients with refractory gastroparesis: an international multicenter study.
Marita Salame, Yervant Ichkhanian, Nwal Hadaki, John M Wo, Sarah A Stainko

Gastrointest Endosc· October 2025

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Microbiota and short chain fatty acid relationships underlie clinical heterogeneity and identify key microbial targets in irritable bowel syndrome (IBS).
Andrea S Shin, Yue Xing, Mohammed Rayyan Waseem, Robert Siwiec, Toyia James-Stevenson, John Wo

Sci Rep· October 2025

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Loss of α-smooth muscle actin immunostaining is not a useful marker for functional impairment: a comparison from patients with and without small bowel motility disorder.
Katrina Collins, Iván A González, Muhammad T Idrees, Anita Gupta, John M Wo

Am J Clin Pathol· September 2025

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Impact of Constipation Therapies on Severity of Gastroparesis and Constipation Symptoms in Relation to Gastric and Colonic Transit.
Brian C Surjanhata, Baharak Moshiree, Allen A Lee, Richard W McCallum, Irene Sarosiek, John M Wo

Neurogastroenterol Motil· June 2025

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Predicting Response to Neuromodulators or Prokinetics in Patients With Suspected Gastroparesis Using Machine Learning: The "BMI, Infectious Prodrome, Delayed GES, and No Diabetes" Model.
Will Takakura, Brian Surjanhata, Linda Anh Bui Nguyen, Henry P Parkman, Satish S C Rao, John Man-Ho Wo

Clin Transl Gastroenterol· September 2024

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Microbiota-Short Chain Fatty Acid Relationships Underlie Clinical Heterogeneity and Identify Key Microbial Targets in Irritable Bowel Syndrome (IBS).
Andrea Shin, Yue Xing, Mohammed Rayyan Waseem, Robert Siwiec, Toyia James-Stevenson, John Wo

medRxiv· August 2024

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Benefits of Prokinetics, Gastroparesis Diet, or Neuromodulators Alone or in Combination for Symptoms of Gastroparesis.
William L Hasler, Allen A Lee, Baharak Moshiree, Brian C Surjanhata, Satish Rao, John M Wo

Clin Gastroenterol Hepatol· April 2024

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Clinical Presentation of Small Intestinal Bacterial Overgrowth from Aerodigestive Tract Bacteria Versus Colonic-Type Bacteria: A Comparison Study.
Daanish A Siddique, Claire L Jansson-Knodell, Anita Gupta, Gage Howard, Matthew E Bohm, John M Wo

Dig Dis Sci· August 2023

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Pyloric Functional Lumen Imaging Probe Measurements Are Dependent on Balloon Position.
Brandon Yim, Lennon Gregor, Robert M Siwiec, Mohammad Al-Haddad, Thomas V Nowak, John M Wo

J Neurogastroenterol Motil· April 2023

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Safety of same-day discharge after peroral endoscopic myotomy.
Yara Sarkis, Mohammad A Al-Haddad, Robert Siwiec, William R Kessler, John M Wo

Dis Esophagus· March 2023

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Associations of Fecal Short Chain Fatty Acids With Colonic Transit, Fecal Bile Acid, and Food Intake in Irritable Bowel Syndrome.
Mohammed Rayyan Waseem, Andrea Shin, Robert Siwiec, Toyia James-Stevenson, Matthew Bohm, John Wo

Clin Transl Gastroenterol· January 2023

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Relationships of Intestinal Lactase and the Small Intestinal Microbiome with Symptoms of Lactose Intolerance and Intake in Adults.
Claire L Jansson-Knodell, Edward J Krajicek, Monica Ramakrishnan, Nicholas A Rogers, Robert Siwiec, John Wo

Dig Dis Sci· December 2022

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Symptom Association for Gastroesophageal Reflux Disease by pH Monitoring After Peroral Endoscopic Myotomy.
John M DeWitt, William R Kessler, John M Wo, Sarah Stainko, Anthony Perkins

Am J Gastroenterol· August 2022

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Comparison of functional lumen imaging probe and high-resolution manometry to assess response after peroral endoscopic myotomy.
John M DeWitt, Robert Siwiec, William R Kessler, John M Wo, Sarah Stainko

Gastrointest Endosc· May 2022

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Baseline Predictors of Longitudinal Changes in Symptom Severity and Quality of Life in Patients With Suspected Gastroparesis.
Allen A Lee, Krishna Rao, Henry P Parkman, Richard W McCallum, Irene Sarosiek, John M Wo

Clin Gastroenterol Hepatol· March 2022

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Associations of Habitual Dietary Intake With Fecal Short-Chain Fatty Acids and Bowel Functions in Irritable Bowel Syndrome.
Gerardo Calderon, Chirag Patel, Michael Camilleri, Toyia James-Stevenson, Matthew Bohm, John Wo

J Clin Gastroenterol· March 2022

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Automatic assessment of human gastric motility and emptying from dynamic 3D magnetic resonance imaging.
Kun-Han Lu, Zhongming Liu, Deborah Jaffey, John M Wo, Kristine M Mosier

Neurogastroenterol Motil· January 2022

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Human organ donor-derived vagus nerve biopsies allow for well-preserved ultrastructure and high-resolution mapping of myelinated and unmyelinated fibers.
Leif A Havton, Natalia P Biscola, Esther Stern, Plamen V Mihaylov, Chandrashekhar A Kubal, John M Wo

Sci Rep· December 2021

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Evaluation of timed barium esophagram after per-oral endoscopic myotomy to predict clinical response.
John M DeWitt, Robert M Siwiec, Anthony Perkins, Daniel Baik, William R Kessler, John M Wo

Endosc Int Open· November 2021

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Effect of Oral CNSA-001 (sepiapterin, PTC923) on gastric accommodation in women with diabetic gastroparesis: A randomized, placebo-controlled, Phase 2 trial.
Thomas L Abell, Lazaro M Garcia, Gregory J Wiener, John M Wo, Robert S Bulat

J Diabetes Complications· September 2021

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Gastric peroral endoscopic myotomy for the treatment of refractory gastroparesis: a prospective single-center experience with mid-term follow-up (with video).
Lennon Gregor, John Wo, John DeWitt, Brandon Yim, Robert Siwiec

Gastrointest Endosc· July 2021

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Delayed Gastric Emptying Is Not Associated with a Microbiological Diagnosis of Small Intestinal Bacterial Overgrowth.
Gerardo Calderon, Robert M Siwiec, Matthew E Bohm, Thomas V Nowak, John M Wo

Dig Dis Sci· January 2021

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An emerging method to noninvasively measure and identify vagal response markers to enable bioelectronic control of gastroparesis symptoms with gastric electrical stimulation.
Matthew P Ward, Anita Gupta, John M Wo, Bartek Rajwa, John B Furness

J Neurosci Methods· April 2020

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Correction to: Characterization of Proximal Small Intestinal Microbiota in Patients With Suspected Small Intestinal Bacterial Overgrowth: A Cross-Sectional Study.
Andrea S Shin, Xiang Gao, Matthew Bohm, Huaiying Lin, Anita Gupta, John M Wo

Clin Transl Gastroenterol· February 2020

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