Gregory Austin, MD

Research Interests

I have research interests in obesity and colorectal cancer screening and surveillance.

Publications

• Cassell BE, Scholand K, Tarter W, Hochheimer CJ, Long C, Austin GL. Provider Adherence to the 2020 US Multi-Society Task Force Guidelines for Surveillance After Colonoscopy With Polypectomy. Gastro Hep Adv. 2025;4(1):100532. PubMed PMID: 39790238
• Scholand K, Tarter W, Hochheimer C, Long C, Austin G, Cassell B. S376 Provider Recommendation Adjustment to 2020 US Multi-Society Task Force on Colorectal Cancer Guidelines for Surveillance After Colonoscopy with Polypectomy for 3-4 Non-Advanced Adenomas. American Journal of Gastroenterology 2023;118:S272-S273.
• Cassell BE, Boland K, Tarter W, Hochheimer CJ, Long C, Austin GL. Su1129 PROVIDER ADHERENCE TO AND PREDICTORS OF VARIABILITY FOR THE 2020 US MULTI-SOCIETY TASK FORCE ON COLORECTAL CANCER GUIDELINES FOR SURVEILLANCE AFTER COLONOSCOPY WITH POLYPECTOMY. Gastroenterology 2023;164:S-538.
• Kolb JM, Austin GL. Histology, Size, and Number of Advanced Polyps are Associated With Guideline-Discordant Surveillance Recommendations. Clin Gastroenterol Hepatol. 2022 Oct;20(10):2402-2404. PubMed PMID: 33991693
• Jones B, Scott FI, Espinoza J, Laborde S, Chambers M, Wani S, Edmundowicz S, Austin G, Pell J, Patel SG. Leveraging electronic medical record functionality to capture adenoma detection rate. Sci Rep. 2022 Jun 11;12(1):9679. PubMed PMID: 35690660
• Austin GL. Comment on: Iron deficiency is highly prevalent among candidates for metabolic surgery and may impact perioperative outcomes. Surg Obes Relat Dis. 2021 Oct;17(10):1701-1702. PubMed PMID: 34389246
• Kolb JM, Austin GL. Histology, Size, and Number of Advanced Polyps are Associated With Guideline-Discordant Surveillance Recommendations. Clin Gastroenterol Hepatol. 2021 May 13. [Epub ahead of print] PubMed PMID: 33991693
• Galatowitsch JF, Zivney M, Haydek JP, Austin G. S3016 A Big Problem in the Small Intestine: A Rare Case of Small Bowel Lymphoma with Acute Presentation. Official journal of the American College of Gastroenterology | ACG 2021;116:S1247. Presented in poster format at the American College of Gastroenterology Annual Scientific Meeting, October 2021.
• Nearing KA, Nuechterlein BM, Tan S, Zerzan JT, Libby AM, Austin GL. Training Mentor-Mentee Pairs to Build a Robust Culture for Mentorship and a Pipeline of Clinical and Translational Researchers: The Colorado Mentoring Training Program. Acad Med. 2020 Jan 14. [Epub ahead of print] PubMed PMID: 31972672
• Nearing KA, Nuechterlein BM, Tan S, Zerzan JT, Libby AM, Austin GL. Training Mentor-Mentee Pairs to Build a Robust Culture for Mentorship and a Pipeline of Clinical and Translational Researchers: The Colorado Mentoring Training Program. Acad Med. 2020 May;95(5):730-736. PubMed PMID: 31972672
• Patel SG, Ahnen DJ, Gumidyala A, Espinoza J, Nicklawsky A, Hu J, Smith D, Lowery J, Austin G, Cockburn M. Poor Knowledge of Personal and Familial Colorectal Cancer Risk and Screening Recommendations Associated with Advanced Colorectal Polyps. Dig Dis Sci. 2020 Sep;65(9):2542-2550. PubMed PMID: 32144601
• Cassell BE, Ross K, Chang TY, Austin GL. Predictors of Failed Conscious Sedation in Patients Undergoing an Outpatient Colonoscopy and Implications for the Adenoma Detection Rate. Sci Rep. 2020 Feb 7;10(1):2167. PubMed PMID: 32034266
• Jones B, Patel S, Wani S, Pell J, Laborde S, Chambers M, Scott F, Austin G, Espinoza J. S1249 Leveraging Electronic Medical Record Functionality to Capture Adenoma Detection Rate: Proof of Concept. American Journal of Gastroenterology. 115. S628-S628. 10.14309/01.ajg.0000707044.01923.c2.
• Kolb JM, Austin GL. Histology, Total Number of Polyps, and Size of the Largest Polyp are Associated with Inaccurate Surveillance Interval Recommendation in Patients with Advanced Colorectal Polyps. Gastroenterology 2019;156:S-809.
• Patel S, Ahnen D, Gumidyala A, Lowery J, Cockburn M, Austin GL. Poor Knowledge of Personal and Familial Cancer Risk and Guideline-Based Screening Recommendations in Patients with Advanced Colorectal Polyps. Gastroenterology 2019;156:S-250-S-251.
• Ross K, Chang TY, Austin GL, Cassell BE. Failed Conscious Sedation and Impact on Adenoma Detection Rates. Gastrointestinal Endoscopy 2019;89:AB552-AB553
• Vachon A, Menard-Katcher P, Austin GL. Use of a Simple 6-Item Questionnaire in the Endoscopy Reporting Software Captures Important Milestones for Gastroenterology Trainees Performing Colonoscopy. Gastroenterology 2019;157:e33-e34
• Austin GL, Weiskopf JR, Czwornog JL. Association of Proton Pump Inhibitor Use With Serum Biomarkers of Inflammation, Insulin Resistance, Cardiovascular Risk, and Renal Function. J Clin Gastroenterol. 2018 Sep;52(8):691-695. PubMed PMID: 29099466
• Dillon SM, Guo K, Austin GL, Gianella S, Engen PA, Mutlu EA, Losurdo J, Swanson G, Chakradeo P, Keshavarzian A, Landay AL, Santiago ML, Wilson CC. A compartmentalized type I interferon response in the gut during chronic HIV-1 infection is associated with immunopathogenesis. AIDS. 2018 Jul 31;32(12):1599-1611. PubMed PMID: 29762170
• Cassell BE, Chang TY, Ross K, Austin GL. Predictors of Failed Conscious Sedation in an Academic Outpatient Gastroenterology Lab. Gastrointestinal Endoscopy 2018;87:AB417.
• Dillon SM, Castleman MJ, Frank DN, Austin GL, Gianella S, Cogswell AC, Landay AL, Barker E, Wilson CC. Brief Report: Inflammatory Colonic Innate Lymphoid Cells Are Increased During Untreated HIV-1 Infection and Associated With Markers of Gut Dysbiosis and Mucosal Immune Activation. J Acquir Immune Defic Syndr. 2017 Dec 1;76(4):431-437. PubMed PMID: 28825942
• Austin GL, Weiskopf JR, Czwornog JL. Association of Proton Pump Inhibitor Use With Serum Biomarkers of Inflammation, Insulin Resistance, Cardiovascular Risk, and Renal Function. J Clin Gastroenterol. 2017 Nov 3. [Epub ahead of print] PubMed PMID: 29099466
• Hankins SC, Brimhall BB, Kankanala V, Austin GL. A low-volume polyethylene glycol solution was associated with an increased suboptimal bowel preparation rate but had similar recommendations for an early repeat colonoscopy, procedure times, and adenoma detection rates. PLoS One. 2017;12(4):e0176265. PubMed PMID: 28448598
• Dillon SM, Kibbie J, Lee EJ, Guo K, Santiago ML, Austin GL, Gianella S, Landay AL, Donovan AM, Frank DN, McCARTER MD, Wilson CC. Low abundance of colonic butyrate-producing bacteria in HIV infection is associated with microbial translocation and immune activation. AIDS. 2017 Feb 20;31(4):511-521. PubMed PMID: 28002063
• Austin GL. Paired editorial: Do sleeve gastrectomy and gastric bypass influence treatment with proton pump inhibitors 4 years postsurgery? A nationwide cohort. Surg Obes Relat Dis. 2017 Jun;13(6):960-961. PubMed PMID: 28411020
• Mounzer R, Austin GL, Wani S, Brauer BC, Fukami N, Shah RJ. Per-oral video cholangiopancreatoscopy with narrow-band imaging for the evaluation of indeterminate pancreaticobiliary disease. Gastrointest Endosc. 2017 Mar;85(3):509-517. PubMed PMID: 27894928
• Seifert S, Chen X, Meditz A, Castillo-Mancilla J, Gardner E, Predhomme J, Clayton C, Austin G, Palmer B, Zheng JH, Klein B, Kerr B, Guida LA, Rower C, Rower JE, Kiser J, Bushman LR, MaWhinney S, Anderson PL. Intracellular Tenofovir and Emtricitabine anabolites in Genital, Rectal, and Blood Compartments from first dose to steady-state. AIDS Res Hum Retroviruses 2016.
• Samuelson A, Zeligman B, Russ P, Austin GL, Yen R, Shah RJ. Pancreatic Duct Changes in Patients With Chronic Pancreatitis Treated With Polyethylene and Sof-Flex Material Stents: A Blinded Comparison. Pancreas. 2016;45:281-285. PMID: 26752255.
• Dillon SM, Lee EJ, Kotter CV, Austin GL, Gianella S, Siewe B, Smith DM, Landay AL, McManus MC, Robertson CE, Frank DN, McCarter MD, Wilson CC. Gut dendritic cell activation links an altered colonic microbiome to mucosal and systemic T-cell activation in untreated HIV-1 infection. Mucosal Immunol. 2016;9:24-37. doi: 10.1038/mi.2015.33. Epub 2015 Apr 29. PMID: 25921339.
• DeLay K, Austin GL, Menard-Katcher P. Anatomic abnormalities are common potential explanations of manometric esophagogastric junction outflow obstruction. Neurogastroenterol Motil 2016;6:12814.
• Brimhall BB, Hankins SC, Kankanala V, Austin GL. Medicare Under Age 65 and Medicaid Patients Have Poorer Bowel Preparations: Implications for Recommendations for an Early Repeat Colonoscopy. PLoS One 2016;11:e0155208.
• Austin GL. Association of Proton Pump Inhibitor Use with Serum Biomarkers of Inflammation, Insulin Resistance, and Cardiovascular Risk. Am J Gastroenterol. 2016;111:S409.
• Czwornog J, Weiskopf J, Ryan S, Kroehl M, Austin GL. Weight Loss and GERD Counseling Among Patients Naive to Acid Suppression Medications Who Become Long-term Proton Pump Inhibitor Users. Am J Gastroenterol. 2016;111:S419.
• Higham-Kessler J, Austin GL. Endocuff-Assisted Colonoscopy is Associated with an Increase in the Mean Number of Polyps but a Similar Adenoma Detection Rate, Surveillance Interval Recommendation, and Amount of Sedation Medications. Gastrointestinal Endoscopy 2016;83:AB538.
• Weiskopf J, Czwornog J, Ryan S, Kroehl M, Austin GL. Initiation of Long-term Proton Pump Inhibitor Use Is Not Associated with Weight Gain. Am J Gastroenterol. 2016;111:S443.
• Samuelson A, Zeligman B, Russ P, Austin GL, Yen R, Shah RJ. Pancreatic Duct Changes in Patients With Chronic Pancreatitis Treated With Polyethylene and Sof-Flex Material Stents: A Blinded Comparison. Pancreas. 2016 Feb;45(2):281-5. PubMed PMID: 26752255
• Dillon SM, Lee EJ, Kotter CV, Austin GL, Gianella S, Siewe B, Smith DM, Landay AL, McManus MC, Robertson CE, Frank DN, McCarter MD, Wilson CC. Gut dendritic cell activation links an altered colonic microbiome to mucosal and systemic T-cell activation in untreated HIV-1 infection. Mucosal Immunol. 2016 Jan;9(1):24-37. PubMed PMID: 25921339
• Austin GL, Ward EK. Response to letter to the editor Re: The effect of PPI use on human gut microbiota and weight loss in patients undergoing laparoscopic Roux-en-Y gastric bypass. Obes Surg. 2015 Jun;25(6):1070. PubMed PMID: 25860132
• Ward EK, Jensen-Otsu E, Schoen JA, Rothchild K, Mitchell B, Austin GL. Acid suppression medications are associated with suboptimal weight loss after laparoscopic Roux-en-Y gastric bypass in patients older than 40 years. Surg Obes Relat Dis. 2015 May-Jun;11(3):585-90. PubMed PMID: 25553887
• Jensen-Otsu E, Ward EK, Mitchell B, Schoen JA, Rothchild K, Mitchell NS, Austin GL. The effect of Medicaid status on weight loss, hospital length of stay, and 30-day readmission after laparoscopic Roux-en-Y gastric bypass surgery. Obes Surg. 2015 Feb;25(2):295-301. PubMed PMID: 25022673
• Ward EK, Austin GL. Response to Letter to the Editor Re: Acid suppression medications are associated with suboptimal weight loss after laparoscopic Roux-en-Y gastric bypass in patients older than 40 years. Surg Obes Relat Dis. 2015 Sep-Oct;11(5):1190-1. PubMed PMID: 26645494
• Jensen-Otsu E, Austin GL. Antidepressant Use is Associated with Increased Energy Intake and Similar Levels of Physical Activity. Nutrients. 2015 Nov 20;7(11):9662-71. PubMed PMID: 26610562
• Czwornog JL, Austin GL. Association of Proton Pump Inhibitor (PPI) Use with Energy Intake, Physical Activity, and Weight Gain. Nutrients. 2015 Oct 19;7(10):8592-601. PubMed PMID: 26492268
• Ward EK, Schuster DP, Stowers KH, Royse AK, Ir D, Robertson CE, Frank DN, Austin GL. The Effect of PPI Use on Human Gut Microbiota and Weight Loss in Patients Undergoing Laparoscopic Roux-en-Y Gastric Bypass. Obes Surg. 2014;24:1567-71. doi: 10.1007/s11695-014-1275-1.
• Ward EK, Jensen-Otsu E, Schoen JA, Rothchild K, Mitchell B, Austin GL. Acid suppression medications are associated with suboptimal weight loss after laparoscopic Roux-en-Y gastric bypass in patients older than 40 years. Surg Obes Relat Dis 2014;7:00369-4.
• Jensen-Otsu E, Ward EK, Mitchell B, Schoen JA, Rothchild K, Mitchell NS, Austin GL. The Effect of Medicaid Status on Weight Loss, Hospital Length of Stay, and 30-Day Readmission After Laparoscopic Roux-en-Y Gastric Bypass Surgery. Obes Surg 2014;15:15.
• Dillon SM, Lee EJ, Kotter CV, Austin GL, Dong Z, Hecht DK, Gianella S, Siewe B, Smith DM, Landay AL, Robertson CE, Frank DN, Wilson CC. An altered intestinal mucosal microbiome in HIV-1 infection is associated with mucosal and systemic immune activation and endotoxemia. Mucosal Immunol. 2014;7:983-94. doi: 10.1038/mi.2013.116. Epub 2014 Jan 8.
• Yen RD, Wani S, Hosford L, Brauer BC, Ahnen DJ, Austin GL. Increased Efficiency in Adenoma Detection With Screening and Surveillance Colonoscopies Over the Course of Scheduled Block. Gastroenterology 2014;146:S-409. Presented in poster format at Digestive Diseases Week, May 2014, Chicago, IL.
• Regner E, Austin G, Gerich M. IBD Surveillance Colonoscopies Require More Time and Medication Than Screening Colonoscopies for Non-IBD Patients. Am J Gastroenterol 2014;109:S562-3. Presented in poster format at the ACG Annual Scientific Meeting, October 2014, Philadelphia, PA.
• Jensen-Otsu E, Austin G. Antidepressant Use is Associated with Increased Energy Intake and Similar Levels of Physical Activity. 2014:Presented in poster format at ObesityWeek 2014, November 5th, 2014, Boston, MA
• Dillon SM, Lee EJ, Austin GL, Gianella S, Smith DM, Siewe B, Landay AL, Wilson CC. Dysregulated Gut Dendritic Cells Correlate with T cell Activation During Untreated HIV Infection. 2014:Presented in poster format at the Annual Conference on Retroviruses and Opportunistic Infections, March 2014, Boston, MA.
• Brimhall BB, Hankins SC, Austin GL. Medicare Patients Under the Age of 65 Years and Medicaid Patients Are More Likely to Have a Suboptimal Bowel Preparation for Colonoscopy. Gastroenterology 2014;146:S-34-S-35. Presented as an oral presentation at Digestive Diseases Week, May 2014, Chicago, IL.
• Brimhall BB, Hankins SC, Austin GL. Effect of a Low-Volume Compared to a High-Volume Polyethylene Glycol Bowel Preparation Solution on Prep Quality, Procedure Times, and Adenoma Detection Rates. Gastroenterology 2014;146:S-552. Presented in poster format at Digestive Diseases Week, May 2014, Chicago, IL.
• Patel SG, Rastogi A, Austin G, Hall M, Siller BA, Berman K, Yen R, Bansal A, Ahnen DJ, Wani S. Gastroenterology Trainees Can Easily Learn Histologic Characterization of Diminutive Colorectal Polyps with Narrow Band Imaging. Clin Gastroenterol Hepatol. 2013;1(13):00277-2.
• Patel SG, Rastogi A, Austin G, Hall M, Siller BA, Berman K, Yen R, Bansal A, Ahnen DJ, Wani S. Gastroenterology trainees can easily learn histologic characterization of diminutive colorectal polyps with narrow band imaging. Clin Gastroenterol Hepatol. 2013;11(8):997-1003.e1. PMID: 23466714.
• Khan AH, Austin GL, Fukami N, Sethi A, Brauer BC, Shah RJ. Cholangiopancreatoscopy and endoscopic ultrasound for indeterminate pancreaticobiliary pathology. Dig Dis Sci. 2013;58(4):1110-5. PMID: 23161267.
• Czwornog J, Austin GL. Body mass index, age, and gender affect prep quality, sedation use, and procedure time during screening colonoscopy. Dig Dis Sci. 2013;58(11):3127-33. PMID:23812829.
• Austin GL, Krueger PM. Increasing the percentage of energy from dietary sugar, fats, and alcohol in adults is associated with increased energy intake but has minimal association with biomarkers of cardiovascular risk. J Nutr. 2013;143(10):1651-8. PMID: 23946345.
• Austin GL, Fennimore B, Ahnen DJ. Can colonoscopy remain cost-effective for colorectal cancer screening? The impact of practice patterns and the Will Rogers phenomenon on costs. Am J Gastroenterol. 2013;108(3):296-301. PMID: 23208273.
• Jensen-Otsu E, Ward E, Mitchell B, Schoen JA, Rothchild K, Austin GL. The Effect of Medicaid Status on Weight Loss Outcomes After Gastric Bypass Surgery. Journal of General Internal Medicine 2013;28(1 Supplement):S215-6.
• Kankanala V, Austin GL. A Diagnostic Colonoscopy Is Associated With a Lower Adenoma Detection Rate Despite Longer Withdrawal Times Compared to a Screening or Surveillance Colonoscopy. Gastrointestinal Endoscopy. 2013;77(5, Supplement):AB505.
• Patel SG, Rastogi A, Austin GL, Hall M, Siller BA, Berman K, Bansal A, Yen RD, Ahnen DJ, Wani S. Learning Curves Using Cumulative Sum Analysis (CUSUM) for the Histologic Characterization of Diminutive Colorectal Polyps Using a Computer-Based Teaching Module and Narrow Band Imaging (NBI) Videos: Implications for Resect and Discard Strategy. Gastrointestinal Endoscopy. 2013;77(5, Supplement):AB145.
• Patel SG, Rastogi A, Austin GL, Hall M, Siller BA, Yen RD, Berman K, Bansal A, Ahnen DJ, Wani S. Durability of Training for Histologic Characterization of Diminutive Colorectal Polyps Using Narrow Band Imaging (NBI): Implications for the Resect and Discard Strategy. . Gastroenterology. 2013;144(5, Supplement 1):S-568-S-9.
• Ward EK, Jensen-Otsu E, Mitchell B, Schoen JA, Austin GL. Acid Suppression Medications Delay Peak Weight Loss After Bariatric Surgery. Gastroenterology. 2013;144(5, Supplement 1):S-270.
• Yen RD, Austin GL, Wani S, Brauer BC, Amateau SK, Patel SG, Ahnen DJ, Barón AE, Strand M. Queue Position Has No Effect on Polyp Detection but Affects Withdrawal Time During Colonoscopy. Gastrointestinal Endoscopy. 2013;77(5, Supplement):AB419-AB20.
• Ward EK, Stowers K, Ir D, Frank D, Austin GL. The Effect of Chronic PPI Use on Human Gut Microbiota in Gastric Bypass Patients. American Journal of Gastroenterology. 2013 108(S1):S94.
• Austin G, Hill JO. Sa1404 Baseline Gastrointestinal Responses to High-Carb and Low-Carb Meals and Adaptations in These Responses Following Weight Loss With High-Carb and Low-Carb Diets. Gastroenterology. 2012;142(5, Supplement 1):S-295. Presented in poster format, Digestive Diseases Week, May 2012, San Diego, CA.
• Czwornog J, Austin G. Tu1732 Effect of Body Mass Index on Procedure Time, Amount of Sedation, and Prep Quality During Screening Colonoscopy. Gastrointestinal Endoscopy. 2012;75(4, Supplement):AB504. Presented in poster format, Digestive Diseases Week, May 2012, San Diego, CA.
• Patel S, Rastogi A, Austin G, Hall M, Siller B, Berman K, Bansal A, Ahnen D, Wani S. Gastroenterology Trainees Can Easily Learn Histologic Characterization of Diminutive Colorectal Polyps with Narrow Band Imaging (NBI). American Journal of Gastroenterology. 2012;107(S1):S807. Presented in poster format at ACG Annual Scientific Meeting, October 2012, Las Vegas, NV.
• egalia K, Fortune BE, Smolkin MJ, Czwornog J, Austin G, Everson GT. Sa1021 The use of Noninvasive Indices of Hepatic Fibrosis to Detect Clinically Significant Portal Hypertension. Gastroenterology. 2012;142(5, Supplement 1):S-948. Presented in poster format, Digestive Diseases Week, May 2012, San Diego, CA.
• Austin GL, Fennimore B, Ahnen DJ. Can Colonoscopy Remain Cost-Effective for Colorectal Cancer Screening? The Impact of Practice Patterns and the Will Rogers Phenomenon on Costs. Am J Gastroenterol 2012;4:195.
• Khan AH, Austin GL, Fukami N, Sethi A, Brauer BC, Shah RJ. Cholangiopancreatoscopy and Endoscopic Ultrasound for Indeterminate Pancreaticobiliary Pathology. Dig Dis Sci. 2012;17:17.
• Austin GL, Goldstein JI, Peters SL, Ahnen DJ. Are Colorectal Cancer Screening Recommendations for First-Degree Relatives of Patients with Adenomas Too Aggressive? Clin Gastroenterol Hepatol. 2011 Jan 14. (Epub ahead of print).
• Benson AB, Burton JR, Austin GL, Biggins SW, Zimmerman MA, Kam I, Mandell S, Silliman CC, Rosen H, Moss M. Differential effect of plasma and red blood cell transfusion on acute lung injury and infection risk following liver transplantation. Liver Transpl. 2011 Feb;17(2):149-58.
• Austin GL, Ogden LG, Hill JO. Trends in Carbohydrate, Fat, and Protein Intake and Association with Energy Intake in Normal-Weight, Overweight, and Obese Individuals: 1971-2006. Am J Clin Nutr. 2011 Feb 10 (Epub ahead of print).
• Peters SL, Hasan AG, Jacobson NB, Austin GL. Level of Fellowship Training Increases Adenoma Detection Rates (in press Clin Gastroenterol Hepatol 2010). Epub 2010 Jan 28.
• Benson AB, Austin GL, Berg M, McFann KK, Thomas S, Ramirez G, Rosen H, Silliman CC, Moss M. Transfusion-related acute lung injury in ICU patients admitted with gastrointestinal bleeding. Intensive Care Med 2010;36:1710-1717. Epub 2010 Jul 24.
• Sethi A, Chen YK, Austin GL, Brown WR, Brauer BC, Fukami NN, Khan AH, Shah RJ. ERCP with cholangiopancreatoscopy may be associated with higher rates of complications than ERCP alone: a single-center experience. Gastrointest Endosc (in press) 2010 Nov 22.
• Benson AB, Austin G, Silliman C, Moss M. Transfusion Associated Acute Respiratory Distress Syndrome (ARDS) in Patients with Gastrointestinal Bleeding: Effect of End Stage Liver Disease and the Use of Fresh Frozen Plasma. Am J Respir Crit Car Med. 2009;179:A4639.
• Hasan AG, Peters SL, Jacobson N, Austin GL. Improved Adenoma Detection Rates Using High Definition Colonoscopes Versus Standard Definition Colonoscopes. Gastrointestinal Endoscopy. 2009;69(5):AB103.
• Austin GL, Dalton CB, Hu YH, Morris CB, Hankins J, Weinland SR, Westman EC, Yancy WS, Drossman DA. A Very Low Carbohydrate Diet Provides Adequate Relief of Symptoms and Improves Quality of Life in Overweight and Obese Individuals with Diarrhea-Predominant Irritable Bowel Syndrome (IBS-D). Clin Gastroenterol Hepatol. In Press.
• Austin GL, Dalton CB, Hu Y, Morris CB, Hankins J, Weinland SR, Westman EC, Yancy WS, Jr., Drossman DA. A very low-carbohydrate diet improves symptoms and quality of life in diarrhea-predominant irritable bowel syndrome. Clin Gastroenterol Hepatol 2009;7:706-708.e1.
• Austin GL. Gut Hormones in Obesity: Therapeutic Strategies. Obesity and Weight Management. Aug 2009;5(4):162-166.
• Khan AH, Chen YK, Austin GL, Sethi A, Brauer BC, Chathadi K, Fukami N, Shah RJ. Cholangiopancreatoscopy (CP) and EUS for Suspected Pancreaticobiliary Neoplasms (PBN). Gastrointestinal Endoscopy 2008;67:AB228. Presented in poster format at Digestive Diseases Week, May 2008, San Diego, CA.
• Sethi A, Chen YK, Austin GL, Brauer BC, Fukami N, Khan AH, Shah RJ. ERCP with Cholangiopancreatoscopy (CP) is Associated with Higher Rates of Endoscopic Complications than ERCP alone. Gastrointestinal Endoscopy 2008;67:AB102-AB103. Presented as an oral presentation at Digestive Diseases Week, May 2008, San Diego, CA.
• Austin GL, Galanko JA, Martin CF, Sandler RS. Moderate alcohol consumption protects against colorectal adenomas in smokers. Dig Dis Sci 2008;53:116-22. Epub 2007 May 18.
• Austin GL, Adair LS, Galanko JA, Martin CF, Satia JA, Sandler RS. A diet high in fruits and low in meats reduces the risk of colorectal adenomas. J Nutr 2007;137:999-1004.
• Steck SE, Chalecki AM, Miller P, Conway J, Austin GL, Hardin JW, Albright CD, Thuillier P. Conjugated Linoleic Acid Supplementation for Twelve Weeks Increases Lean Body Mass in Obese Humans. J Nutr 2007;137:1188-1193.
• Austin GL, Herfarth HH, Sandler RS. A critical evaluation of serologic markers for inflammatory bowel disease. Clin Gastroenterol Hepatol 2007;5:545-7.
• Austin GL, Shaheen NJ, Sandler RS. Positive and negative predictive values: use of inflammatory bowel disease serologic markers. Am J Gastroenterol 2006;101:413-6.
• Austin GL, Thiny MT, Westman EC, Yancy WS, Shaheen NJ. A very low-carbohydrate diet improves gastroesophageal reflux and its symptoms. Dig Dis Sci 2006;51:1307-12.
• 7. Austin GL, Sasaki AW, Zaman A, Rabkin JM, Olyaei A, Ruimy R, Orloff SL, Ham J, Rosen HR. Comparative analysis of outcome following liver transplantation in US veterans. Am J Transplant 2004;4:788-95.

Professional Memberships

• American Gastroenterological Association, Member
• American College of Gastroenterology, Member

Practice Locations

UCHealth Digestive Health Center - Anschutz Medical Campus
1635 Aurora Ct
5th Floor
Aurora, CO 80045
720-848-2777

UCHealth Gastroenterology Clinic - Lone Tree
9548 Park Meadows Drive
Lone Tree, CO 80124
720-848-5146

Hospital Affiliation

• University of Colorado Hospital

Specialty Information

Specialties

• Gastroenterology, Board Certification (2017)