John MarkBGubatanMD

Gastroenterology • Stanford, CA

Inflammatory Bowel Disease

Physician

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Office
300 Pasteur Drive
Stanford, CA 94305
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Education & Training

Stanford Health Care-Sponsored Stanford UniversityFellowship, Gastroenterology, 2018 - 2021
Beth Israel Deaconess Medical CenterResidency, Internal Medicine, 2014 - 2017
Harvard Medical SchoolClass of 2014

Certifications & Licensure

CA State Medical License 2018 - 2025
MA State Medical License 2017 - 2024
American Board of Internal Medicine Internal Medicine
American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

Doris Duke Physician Scientist Fellowship Award Doris Duke Charitable Foundation (DDCF), 2021-2023
Clinical Research Loan Repayment Program Award National Institutes of Health (NIH)/National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), 2020-2022
Chan Zuckerberg Biohub Physician Scientist Scholar Award Chan Zuckerberg Biohub, 2020-2022
NCSCG Symposium 1st Place Abstract Award Northern California Society for Clinical Gastroenterology, 2021
AGA Gastroenterology Journal Editorial Fellow American Gastroenterological Association (AGA), 2020-2021
Stanford Gastroenterology Chief Fellow Division of Gastroenterology and Hepatology, Stanford University, 2020-2021
Stanford Translational Research and Applied Medicine (TRAM) Pilot Grant Award Stanford University, 2020-2021
Top Downloaded Paper 2018-2019 Award Wiley Publishing, 2020
Outstanding Reviewer Award Experimental Biology and Medicine, 2019
Third Annual Inflammatory Bowel Disease (IBD) Summit for Fellows Travel Award IBD Summit VINDICO, 2019
Robert W. Summers Grant Award American Society of Gastrointestinal Endoscopy (ASGE), 2019
Senior Resident Medicine Grand Rounds Research Presentation Beth Israel Deaconess Medical Center, Harvard Medical School, 2017
Harvard Open Access Publishing Equity (HOPE) Award Harvard University, 2016
Outstanding Abstract Award Beth Israel Deaconess Medical Center, Harvard Medical School, 2016
Class of 1951 Endowed Scholarship Harvard Medical School, 2013
Summer Research Fellowship Harvard Medical School, 2011
Immunology Research Award Harvard Dean Advisory Council Meeting, 2011
Summa Cum Laude Michigan Tech University, 2010
Outstanding Senior Award Department of Chemistry, Michigan Tech University, 2010
National Achievement Scholarship Michigan Tech University, 2007-2010
Barry M. Goldwater Scholar Barry Goldwater Scholarship & Excellence in Education Foundation, 2009
Amgen Scholarship, Stanford University School of Medicine Amgen Foundation, 2009
Summer Undergraduate Research Program (SHURP) Fellowship Harvard Medical School, 2008
Summer Medical And Research Training (SMART) Program Fellowship Baylor College of Medicine, 2007
NIH Research Initiate for Scientific Enhancement (RISE) Fellowship University of Guam, 2006-2007
Government of Guam Merit Scholarship University of Guam, 2005-2007
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Clinical Trials

Vitamin D Regulation of Gut Specific B Cells and Antibodies Targeting Gut Bacteria in Inflammatory Bowel Disease Start of enrollment: 2021 Jul 01
Completed
Phase 1
Roles: Principal Investigator, Contact

Publications & Presentations

PubMed

Influence of vitamin D receptor signaling and vitamin D on colonic epithelial cell fate decisions in ulcerative colitis.
Lauge Kellermann, Stine Lind Hansen, Grzegorz Maciag, Agnete Marie Granau, Jens Vilstrup Johansen, Joji Marie Teves, Raul Bardini Bressan, Marianne Terndrup Pedersen, ...> ;Journal of Crohn's & Colitis. 2024 May 15
Differential expression of small bowel TGFβ1 and TGFβ3 characterizes intestinal strictures in patients with fibrostenotic Crohn's disease.
Ibaad Khan, Violet Iyahen, James Ziai, Rebecca Sheng, Sara B Glickstein, Tianhe Sun, K T Park, Jacqueline McBride, Mary Keir, Steven Levitte, John Gubatan> ;Histochemistry and Cell Biology. 2024 May 5
Some Drugs Have Two Faces: Paradoxical Colitis in a Patient with Psoriatic Arthritis Previously Treated with Etanercept and IL-17 Inhibitors.
Sandy Huynh, Sudharshan Achalu, Rani Berry, Janice Lin, Cindy X Wang, John Gubatan, Alice G Cheng> ;Digestive Diseases and Sciences. 2024 May 1
1 citations
Kinase Signaling in Colitis-Associated Colon Cancer and Inflammatory Bowel Disease.
Michelle Temby, Theresa L Boye, Jacqueline Hoang, Ole H Nielsen, John Gubatan> ;Biomolecules. 2023 Nov 6
2 citations
Effectiveness of Non-Budesonide Therapies in Management of Microscopic Colitis: A Systematic Review and Meta-analysis.
Amalie Rehde, Sebastian Kjærgaard Hendel, Carsten Bogh Juhl, John Gubatan, Ole Haagen Nielsen> ;Drugs. 2023 Jul 1
3 citations
Selective JAK1 inhibitors for the treatment of inflammatory bowel disease.
Ole Haagen Nielsen, Theresa Louise Boye, John Gubatan, Deepavali Chakravarti, James B Jaquith, Eric C LaCasse> ;Pharmacology & Therapeutics. 2023 May 1
1 citations
Small bowel adenocarcinoma in neoterminal ileum in setting of stricturing Crohn's disease: A case report and review of literature.
Jeanne Shen, Kian Keyashian, John Gubatan, Shruthi Karthikeyan> ;World Journal of Clinical Cases. 2023 Mar 26
4 citations
Case Series of Precision Delivery of Methylprednisolone in Pediatric Inflammatory Bowel Disease: Feasibility, Clinical Outcomes, and Identification of a Vasculitic Tra...
Steven Levitte, Reza Yarani, Abantika Ganguly, Lynne Martin, John Gubatan, Helen R Nadel, Benjamin Franc, Roberto Gugig, Ali Syed, Alka Goyal, K T Park, Avnesh S Thakor> ;Journal of Clinical Medicine. 2023 Mar 20
3 citations
Comparative onset of effect of biologics and small molecules in moderate-to-severe ulcerative colitis: a systematic review and network meta-analysis.
Mohamed Attauabi, Emilie Kristine Dahl, Johan Burisch, John Gubatan, Ole Haagen Nielsen, Jakob Benedict Seidelin> ;Eclinicalmedicine. 2023 Mar 1
1 citations
Editorial: treat-to-target in ulcerative colitis clinical management-a small price to pay?
Grant E Barber, John Gubatan> ;Alimentary Pharmacology & Therapeutics. 2023 Mar 1
7 citations
Dietary Exposures and Interventions in Inflammatory Bowel Disease: Current Evidence and Emerging Concepts.
John Gubatan, Chiraag V Kulkarni, Sarah Melissa Talamantes, Michelle Temby, Touran Fardeen, Sidhartha R Sinha> ;Nutrients. 2023 Jan 22
2 citations
Subcutaneous Sweet Syndrome Successfully Treated With Ustekinumab in a Patient With Ulcerative Colitis.
Kelly A Hu, Jeanne Shen, Kerri Rieger, Mike T Wei, John Gubatan> ;ACG Case Reports Journal. 2022 Nov 1
3 citations
Immune checkpoint inhibitor-mediated colitis is associated with cancer overall survival.
Alexa R Weingarden, John Gubatan, Sundeep Singh, Tatiana Clorice Balabanis, Akshar Patel, Arpita Sharma, Aida Habtezion> ;World Journal of Gastroenterology. 2022 Oct 21
1 citations
De Novo Diagnosis of Lymphocytic Colitis After SARS-CoV-2 Vaccination.
Preston Lee, Mike T Wei, John Gubatan, Erna Forgó, Gerald J Berry, Rahul Verma, Shai Friedland> ;ACG Case Reports Journal. 2022 Sep 1
13 citations
The Tumor Immune Microenvironment in Pancreatic Ductal Adenocarcinoma: Neither Hot nor Cold.
Samuel J S Rubin, Raoul S Sojwal, John Gubatan, Stephan Rogalla> ;Cancers. 2022 Aug 31
5 citations
Paternal Medications in Inflammatory Bowel Disease and Male Fertility and Reproductive Outcomes: A Systematic Review and Meta-analysis.
John Gubatan, Grant E Barber, Ole Haagen Nielsen, Carsten Bogh Juhl, Cynthia Maxwell, Michael L Eisenberg, Sarah E Streett> ;Clinical Gastroenterology and Hepatology. 2023 Aug 1
13 citations
Gut Microbiome in Inflammatory Bowel Disease: Role in Pathogenesis, Dietary Modulation, and Colitis-Associated Colon Cancer.
John Gubatan, Theresa Louise Boye, Michelle Temby, Raoul S Sojwal, Derek R Holman, Sidhartha R Sinha, Stephan R Rogalla, Ole Haagen Nielsen> ;Microorganisms. 2022 Jul 7
6 citations
p38γ and p38δ as biomarkers in the interplay of colon cancer and inflammatory bowel diseases.
Pilar Fajardo, Maria Taskova, Miguel A Martín-Serrano, Jonas Hansen, Sofie Slott, Anna K Jakobsen, Marie-Louise Wibom, Beñat Salegi, Alberto Muñoz, Antonio Barbachano,...> ;Cancer Communications. 2022 Sep 1
Rates and Predictors of Long-term Clinical Outcomes in Patients With Perianal Crohn's Disease on Biologic Therapy.
John Gubatan, Spencer Frost, Steven Levitte, Kian Keyashian> ;Journal of Clinical Gastroenterology. 2023 Jul 1
10 citations
Selective tyrosine kinase 2 inhibitors in inflammatory bowel disease.
Ole Haagen Nielsen, Theresa Louise Boye, Deepavali Chakravarti, John Gubatan> ;Trends in Pharmacological Sciences. 2022 May 1
5 citations
Disease exacerbation is common in inflammatory bowel disease patients treated with immune checkpoint inhibitors for malignancy.
Samuel J S Rubin, Tatiana Balabanis, John Gubatan, Aida Habtezion> ;World Journal of Clinical Cases. 2022 Feb 26
38 citations
Antimicrobial peptides and the gut microbiome in inflammatory bowel disease
John Gubatan, Derek R Holman, Danielle Polevoi, Samuel J S Rubin, Stephan Rogalla> ;World Journal of Gastroenterology. 2021 Nov 21
27 citations
Anti-Integrins for the Treatment of Inflammatory Bowel Disease: Current Evidence and Perspectives
John Gubatan, Kian Keyashian, Samuel J S Rubin, Jenny Wang, Cyrus A Buckman, Sidhartha R. Sinha> ;Clinical and Experimental Gastroenterology. 2021 Aug 24
25 citations
Dual targeting of lymphocyte homing and retention through α4β7 and αEβ7 inhibition in inflammatory bowel disease
Bingbing Dai, Jason A. Hackney, Ryan Ichikawa, Allen Nguyen, Justin Elstrott, Luz D. Orozco, Kai-Hui Sun, Zora Modrusan, Alvin Gogineni, Alexis Scherl, John Gubatan, A...> ;Cell Reports. Medicine. 2021 Aug 17
11 citations
Immune checkpoint inhibitor-mediated colitis in gastrointestinal malignancies and inflammatory bowel disease.
Alexa R Weingarden, Samuel J S Rubin, John Gubatan> ;World Journal of Gastrointestinal Oncology. 2021 Aug 15
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Press Mentions

Getting More Vitamin D May Help Ward off Ulcerative Colitis Flare-UpsApril 5th, 2017
Vitamin D May Be More Important Than Known for Ulcerative ColitisFebruary 20th, 2017
Low Vitamin D Levels Linked to Relapse of Ulcerative ColitisFebruary 17th, 2017
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