Along with clinical work, Dr Sawan Bopanna has been involved in several research projects. His main areas of interest include inflammatory bowel disease, pancreatic diseases and advanced endoscopy. He has several publications, both national and international to his credit
Bopanna S, Ananthakrishnan AN, Kedia S, Yajnik V, Ahuja V. Risk of colorectal cancer in Asian patients with ulcerative colitis: a systematic review and meta- analysis. Lancet Gastroenterol Hepatol. 2017 Apr;2(4):269-276. doi:10.1016/S2468-1253(17)30004-3. Epub 2017 Feb 21. PMID: 28404156; PMCID: PMC5713894
Sood A, Ahuja V, Midha V, Sinha SK, Pai CG, Kedia S, Mehta V, Bopanna S, Abraham P, Banerjee R, Bhatia S, Chakravartty K, Dadhich S, Desai D, Dwivedi M, Goswami B, Kaur K, Khosla R, Kumar A, Mahajan R, Misra SP, Peddi K, Singh SP, Singh A. Colitis and Crohn's Foundation (India) consensus statements on use of 5-aminosalicylic acid in inflammatory bowel disease. Intest Res. 2020 Oct;18(4):355-378. doi: 10.5217/ir.2019.09176. Epub 2020 Jul 13. PMID: 32646198; PMCID: PMC7609395.
Kedia S, Sharma R, Sreenivas V, Madhusudhan KS, Sharma V, Bopanna S, Pratap Mouli V, Dhingra R, Yadav DP, Makharia G, Ahuja V. Accuracy of computed tomographic features in differentiating intestinal tuberculosis from Crohn's disease: a systematic review with meta-analysis. Intest Res. 2017Apr;15(2):149-159. doi: 10.5217/ir.2017.15.2.149. Epub 2017 Apr 27. PMID: 28522943; PMCID: PMC5430005.
S Y, Kedia S, Teja V, Vuyyuru SK, Yadav N, Sahu P, Jain S, Yadav DP, Bopanna S, Mouli VP, Madhu D, Sharma R, Das P, Makharia G, Ahuja V. Thromboembolism is associated with poor prognosis and high mortality in patients with inflammatory bowel disease: A case-control study. Indian J Gastroenterol. 2022 Aug;41(4):325-335. doi: 10.1007/s12664-021-01237-w. Epub 2022 Sep 5. PMID: 36063357.
Sahu P, Bopanna S, Kedia S, Ahuja V. Risk of colorectal cancer in Asian patients with ulcerative colitis. J Gastroenterol Hepatol. 2020 Aug;35(8):1451. doi: 10.1111/jgh.15052. Epub 2020 Apr 29. PMID: 32246883.
Vuyyuru SK, Desai D, Kedia S, Dhoble P, Sahu P, Kante B, Agarwal S, Bopanna S, Dhingra R, Venigalla PM, Sharma R, Gupta SD, Makharia G, Sahni P, Ahuja V. Long-term outcomes of anti-tumor necrosis factor therapy and surgery in nonperianal fistulizing Crohn's disease. JGH Open. 2021 Mar 26;5(4):420-427. doi: 10.1002/jgh3.12370. PMID: 33860091; PMCID: PMC8035465.
Kedia S, Ghosh TS, Jain S, Desigamani A, Kumar A, Gupta V, Bopanna S, Yadav DP, Goyal S, Makharia G, Travis SPL, Das B, Ahuja V. Gut microbiome diversity in acute severe colitis is distinct from mild to moderate ulcerative colitis. J Gastroenterol Hepatol. 2021 Mar;36(3):731-739. doi: 10.1111/jgh.15232. Epub 2020 Sep 14. PMID: 32870508.
Bopanna S, Kedia S, Ahuja V. A low-cost method for chromoendoscopy for surveillance in ulcerative colitis. Indian J Gastroenterol. 2016 Nov;35(6):482-485. doi: 10.1007/s12664-016-0711-7. Epub 2016 Nov 23. PMID: 27878770.
Rampal R, Wari N, Singh AK, Das U, Bopanna S, Gupta V, Nayak B, Velapandian T, Kedia S, Kumar D, Awasthi A, Ahuja V. Retinoic Acid Is Elevated in the Mucosa of Patients With Active Ulcerative Colitis and Displays a Proinflammatory Role by Augmenting IL-17 and IFNγ Production. Inflamm Bowel Dis. 2021 Jan 1;27(1):74-83. doi: 10.1093/ibd/izaa121. PMID: 32469071.
Aggarwal P, Kedia S, Sharma R, Bopanna S, Madhusudhan KS, Yadav DP, Goyal S, Jain S, Mouli VP, Das P, Dattagupta S, Makharia G, Ahuja V. Tubercular Intestinal Strictures Show a Poor Response to Anti-Tuberculous Therapy. Dig Dis Sci. 2017 Oct;62(10):2847-2856. doi: 10.1007/s10620-017-4727-3. Epub 2017 Aug 30. PMID: 28856488.
Gupta A, Bopanna S, Kedia S, Yadav DP, Goyal S, Jain S, Makharia G, Ahuja V. Familial aggregation of inflammatory bowel disease in patients with ulcerative colitis. Intest Res. 2017 Jul;15(3):388-394. doi: 10.5217/ir.2017.15.3.388. Epub 2017 12. PMID: 28670236; PMCID: PMC5478764.
Ranjha R, Aggarwal S, Bopanna S, Ahuja V, Paul J. Site-Specific MicroRNA Expression May Lead to Different Subtypes in Ulcerative Colitis. PLoS One. 2015 Nov 16;10(11):e0142869. doi: 10.1371/journal.pone.0142869. PMID: 26569605; PMCID: PMC4646509.
Arora U, Ananthakrishnan AN, Kedia S, Bopanna S, Mouli PV, Yadav DP, Makharia GK, Yajnik V, Ahuja V. Effect of oral tobacco use and smoking on outcomes of Crohn's disease in India. J Gastroenterol Hepatol. 2018 Jan;33(1):134-140. doi: 10.1111/jgh.13815. PMID: 28475826.
Kumar S, Bopanna S, Kedia S, Mouli P, Dhingra R, Padhan R, Kohli M, Chaubey J, Sharma R, Das P, Dattagupta S, Makharia G, Sharma SK, Ahuja V. Evaluation of Xpert MTB/RIF assay performance in the diagnosis of abdominal tuberculosis. Intest Res. 2017 Apr;15(2):187-194. doi: 10.5217/ir.2017.15.2.187. Epub 2017 Apr 27. PMID: 28522948; PMCID: PMC5430010.
Yadav DP, Kedia S, Madhusudhan KS, Bopanna S, Goyal S, Jain S, Vikram NK, Sharma R, Makharia GK, Ahuja V. Body Composition in Crohn's Disease and Ulcerative Colitis: Correlation with Disease Severity and Duration. Can J Gastroenterol Hepatol. 2017;2017:1215035. doi: 10.1155/2017/1215035. Epub 2017 Oct 31. PMID: 29226115; PMCID: PMC5684551.
Jain S, Kedia S, Sethi T, Bopanna S, Yadav DP, Goyal S, Padhan R, Venigalla PM, Sahni P, Dash NR, Pal S, Makharia G, Travis SPL, Ahuja V. Predictors of long-term outcomes in patients with acute severe colitis: A northern Indian cohort study. J Gastroenterol Hepatol. 2018 Mar;33(3):615-622. doi: 10.1111/jgh.13921. PMID: 28801987.
Kedia S, Sharma R, Bopanna S, Makharia G, Ahuja V. Predictive Model for Differentiating Crohn's Disease and Intestinal Tuberculosis: The Story Is Incomplete Without Imaging. Am J Gastroenterol. 2017 Jan;112(1):188-189. doi: 10.1038/ajg.2016.490. PMID: 28050042.
Jain S, Kedia S, Bopanna S, Sachdev V, Sahni P, Dash NR, Pal S, Vishnubhatla S, Makharia G, Travis SPL, Ahuja V. Faecal Calprotectin and UCEIS Predict Short- term Outcomes in Acute Severe Colitis: Prospective Cohort Study. J Crohns Colitis. 2017 Oct 27;11(11):1309-1316. doi: 10.1093/ecco-jcc/jjx084. PMID: 29088461.
Sahu P, Vuyyuru SK, Kante B, Agarwal A, Sharma R, Das P, Panwar R, Jain S, Bopanna S, Makharia G, Kedia S, Ahuja V. Relapse rate following withdrawal of anti-TNF therapy in patients with inflammatory bowel disease: A real-life cohort from northern India. Indian J Gastroenterol. 2020 Aug;39(4):388-397. doi: 10.1007/s12664-020-01043-w. Epub 2020 Sep 3. PMID: 32880844.
Tomar SK, Kedia S, Singh N, Upadhyay AD, Kamat N, Bopanna S, Yadav DP, Goyal S, Jain S, Makharia G, Ahuja V. Higher education, professional occupation, and upper socioeconomic status are associated with lower adherence to medications in patients with inflammatory bowel disease. JGH Open. 2019 Mar 18;3(4):302-309. doi: 10.1002/jgh3.12160. PMID: 31406923; PMCID: PMC6684767.
Bopanna S, Kedia S, Das P, Dattagupta S, Sreenivas V, Mouli VP, Dhingra R, Pradhan R, Kumar NS, Yadav DP, Makharia G, Ahuja V. Long-term follow-up reveals high incidence of colorectal cancer in Indian patients with inflammatory bowel disease. United European Gastroenterol J. 2017 Aug;5(5):708-714. doi: 10.1177/2050640616680552. Epub 2016 Nov 17. PMID: 28815035; PMCID: PMC5548352.
Agarwal A, Kedia S, Jain S, Gupta V, Bopanna S, Yadav DP, Goyal S, Mouli VP, Dhingra R, Makharia G, Ahuja V. High risk of tuberculosis during infliximab therapy despite tuberculosis screening in inflammatory bowel disease patients in India. Intest Res. 2018 Oct;16(4):588-598. doi: 10.5217/ir.2018.00023. Epub 2018 Oct 10. PMID: 30301331; PMCID: PMC6223459.
Jain S, Kedia S, Bopanna S, Yadav DP, Goyal S, Sahni P, Pal S, Dash NR, Makharia G, Travis SPL, Ahuja V. Are Truelove and Witts criteria for diagnosing acute severe colitis relevant for the Indian population? A prospective study. Intest Res. 2018 Jan;16(1):69-74. doi: 10.5217/ir.2018.16.1.69. Epub 2018 Jan 18. PMID: 29422800; PMCID: PMC5797274.
Padhan RK, Kedia S, Garg SK, Bopanna S, Mouli VP, Dhingra R, Makharia G, Ahuja V. Long-Term Disease Course and Pregnancy Outcomes in Women with Inflammatory Bowel Disease: An Indian Cohort Study. Dig Dis Sci. 2017 Aug;62(8):2054-2062. doi: 10.1007/s10620-016-4353-5. Epub 2016 Oct 26. PMID: 27785711.
Rai T, Choudhury BN, Kedia S, Bopanna S, Venigalla PM, Garg SK, Singla V, Makharia G, Ahuja V. Short-Term Clinical Response to Corticosteroids Can Predict Long-Term Natural History of Ulcerative Colitis: Prospective Study Experience. Dig Dis Sci. 2017 Apr;62(4):1025-1034. doi: 10.1007/s10620-017-4450-0. Epub 2017 Feb 4. PMID: 28161855.
Goyal S, Rampal R, Kedia S, Mahajan S, Bopanna S, Yadav DP, Jain S, Singh AK, Wari MN, Makharia G, Awasthi A, Ahuja V. Urinary potassium is a potential biomarker of disease activity in Ulcerative colitis and displays in vitro immunotolerant role. Sci Rep. 2017 Dec 22;7(1):18068. doi: 10.1038/s41598-017-18046-x. PMID: 29273710; PMCID: PMC5741718.
Dhingra R, Kedia S, Mouli VP, Garg SK, Singh N, Bopanna S, Singla V, Choudhury BN, Verma P, Tiwari V, Gupta SD, Makharia G, Ahuja V. Evaluating clinical, dietary, and psychological risk factors for relapse of ulcerative colitis in clinical, endoscopic, and histological remission. J Gastroenterol Hepatol. 2017 Oct;32(10):1698-1705. doi: 10.1111/jgh.13770. PMID: 28220959.
Kedia S, Jain S, Goyal S, Bopanna S, Yadav DP, Sachdev V, Sahni P, Pal S, Dash NR, Makharia G, Travis SPL, Ahuja V. Potential of Fecal Calprotectin as an Objective Marker to Discriminate Hospitalized Patients with Acute Severe Colitis from Outpatients with Less Severe Disease. Dig Dis Sci. 2018Oct;63(10):2747-2753. doi: 10.1007/s10620-018-5157-6. Epub 2018 Jun 8. PMID: 29948556.
Kedia S, Madhusudhan KS, Sharma R, Bopanna S, Yadav DP, Goyal S, Jain S, Das P, Dattagupta S, Makharia G, Ahuja V. Combination of increased visceral fat and long segment involvement: Development and validation of an updated imaging marker for differentiating Crohn's disease from intestinal tuberculosis. J Gastroenterol Hepatol. 2018 Jun;33(6):1234-1241. doi: 10.1111/jgh.14065. Epub 2018 Feb 26. PMID: 29205485.
Tomar SK, Kedia S, Upadhyay AD, Bopanna S, Yadav DP, Goyal S, Jain S, Makharia G, Ahuja V, Singh N. Impact of dietary beliefs and practices on patients with inflammatory bowel disease: An observational study from India. JGH Open. 2017 Sep 18;1(1):15-21. doi: 10.1002/jgh3.12002. PMID: 30483527; PMCID: PMC6207045.
Bopanna S, Roy M, Das P, Dattagupta S, Sreenivas V, Mouli VP, Kedia S, Dhingra R, Pradhan R, Kumar NS, Yadav DP, Makharia G, Ahuja V. Role of random biopsies in surveillance of dysplasia in ulcerative colitis patients with high risk of colorectal cancer. Intest Res. 2016 Jul;14(3):264-9. doi: 10.5217/ir.2016.14.3.264. Epub 2016 Jun 27. PMID: 27433149; PMCID: PMC4945531.
Yadav DP, Madhusudhan KS, Kedia S, Sharma R, Pratap Mouli V, Bopanna S, Dhingra R, Pradhan R, Goyal S, Sreenivas V, Vikram NK, Makharia G, Ahuja V. Development and validation of visceral fat quantification as a surrogate marker for differentiation of Crohn's disease and intestinal tuberculosis. J Gastroenterol Hepatol. 2017 Feb;32(2):420-426. doi: 10.1111/jgh.13535. PMID: 27532624.
Jain S, Kedia S, Bopanna S, Yadav DP, Goyal S, Sahni P, Dash NR, Pal S, Makharia G, Ahuja V. Left-sided colitis and extensive colitis have similar colectomy rates after index episode of acute severe colitis: A long-term follow- up study. JGH Open. 2017 Nov 28;1(4):134-139. doi: 10.1002/jgh3.12023. PMID: 30483550; PMCID: PMC6207026.
Kedia S, Bhatia V, Thareja S, Garg S, Mouli VP, Bopanna S, Tiwari V, Makharia G, Ahuja V. Low dose oral curcumin is not effective in induction of remission in mild to moderate ulcerative colitis: Results from a randomized double blind placebo controlled trial. World J Gastrointest Pharmacol Ther. 2017 May 6;8(2):147-154. doi: 10.4292/wjgpt.v8.i2.147. PMID: 28533925; PMCID: PMC5421114.