Publications

  1. Sharma P, Katzka D, Gupta N, Ajani J, Buttar N, Chak A, Corley D, El-Serag H, Falk GW, Fitzgerald R, Goldblum J, Gress F, Ilson DH, Inadomi JM, Kuipers EJ, Lynch JP, McKeon F, Metz D, Pasricha PJ, Pech O, Peek R, Peters JH, Repici A, Seewald S, Shaheen NJ, Souza RF, Spechler SJ, Vennalaganti P, Wang K. Quality Indicators for the Management of Barrett's Esophagus, Dysplasia and Esophageal Adenocarcinoma: International Consensus Recommendations from AGA Symposium. Gastroenterology. 2015 Aug 18.
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  2. Tabibian JH, Leggett CL, Abu Dayyeh BK, Buttar NS. Endoluminal stenting via the suture-assisted flange engagement technique. Gastrointest Endosc. 2015 Aug 10.
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  3. Mathison A, Escande C, Calvo E, Seo S, White T, Salmoson A, Faubion WA Jr, Buttar N, Iovanna J, Lomberk G, Chini EN, Urrutia R. Phenotypic Characterization of Mice Carrying Homozygous Deletion of KLF11, a Gene in which Mutations Cause Human Neonatal and MODY VII Diabetes. Endocrinology. 2015 Aug 06; en20151145.
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  4. Zeb MH, Baruah A, Kossak SK, Buttar NS. Chemoprevention in Barrett's Esophagus: Current Status. Gastroenterol Clin North Am. 2015 Jun; 44(2):391-413.
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  5. Abu Dayyeh BK, Wong Kee Song L, Rajan E, Buttar N. Telescoping caps with over-the-scope clip for full-thickness resection of GI lesions (Xtender technique). Gastrointest Endosc. 2015 Apr; 81(4):1005.
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  6. Chak A, Buttar NS, Foster NR, Seisler DK, Marcon NE, Schoen R, Cruz-Correa MR, Falk GW, Sharma P, Hur C, Katzka DA, Rodriguez LM, Richmond E, Sharma AN, Smyrk TC, Mandrekar SJ, Limburg PJ, Cancer Prevention Network. Metformin does not reduce markers of cell proliferation in esophageal tissues of patients with Barrett's esophagus. Clin Gastroenterol Hepatol. 2015 Apr; 13(4):665-72.e1-4. Epub 2014 Sep 15.
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  7. Baruah A, Buttar NS. Chemoprevention in Barrett's oesophagus. Best Pract Res Clin Gastroenterol. 2015 Feb; 29(1):151-65. Epub 2014 Dec 29.
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  8. Abu Dayyeh BK, Baron TH, Buttar N. Percutaneous-assisted transprosthetic endoscopic therapy for transmural closure of a large postoperative leak. Gastrointest Endosc. 2015 Feb; 81(2):455-6. Epub 2014 Jun 28
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  9. Abu Dayyeh BK, Conwell D, Buttar NS, Kadilaya V, Hart PA, Baumann NA, Bick BL, Chari ST, Chowdhary S, Clain JE, Gleeson FC, Lee LS, Levy MJ, Pearson RK, Petersen BT, Rajan E, Steen H, Suleiman S, Banks PA, Vege SS, Topazian M. Pancreatic juice prostaglandin e2 concentrations are elevated in chronic pancreatitis and improve detection of early disease. Clin Transl Gastroenterol. 2015; 6:e72. Epub 2015 Jan 29.
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  10. Katzka DA, Tadi R, Smyrk TC, Katarya E, Sharma A, Geno DM, Camilleri M, Iyer PG, Alexander JA, Buttar NS. Effects of topical steroids on tight junction proteins and spongiosis in esophageal epithelia of patients with eosinophilic esophagitis. Clin Gastroenterol Hepatol. 2014 Nov; 12(11):1824-9.e1. Epub 2014 Mar 27.
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  11. Baruah A, Buttar N, Chandra R, Chen X, Clemons NJ, Compare D, El-Rifai W, Gu J, Houchen CW, Koh SY, Li W, Nardone G, Phillips WA, Sharma A, Singh I, Upton MP, Vega KJ, Wu X. Translational research on Barrett's esophagus. Ann N Y Acad Sci. 2014 Sep; 1325:170-86.
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  12. Mari L, Milano F, Parikh K, Straub D, Everts V, Hoeben KK, Fockens P, Buttar NS, Krishnadath KK. A pSMAD/CDX2 complex is essential for the intestinalization of epithelial metaplasia. Cell Rep. 2014 May 22; 7(4):1197-210. Epub 2014 May 01.
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  13. Gorospe EC, Desai S, Al-Bawardy B, Baron TH, Buttar NS, Wong Kee Song LM. Over-the-scope clip closure of pancreaticocolonic fistula caused by severe necrotizing pancreatitis. Gastrointest Endosc. 2014 May; 79(5):713. Epub 2013 Dec 12.
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  14. Namasivayam V, Prasad GA, Lutzke LS, Dunagan KT, Borkenhagen LS, Okoro NI, Tomizawa Y, Buttar NS, Michel WL, Wang KK. The risk of endoscopic mucosal resection in the setting of clopidogrel use. ISRN Gastroenterol. 2014; 2014:494157. Epub 2014 Apr 27.
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  15. Akiyama J, Alexandre L, Baruah A, Buttar N, Chandra R, Clark AB, Hart AR, Hawk E, Kandioler D, Kappel S, Krishnadath SK, Sharma A, Singh I, Straub D, Triadafilopoulos G, Umar A, Wolf B. Strategy for prevention of cancers of the esophagus. 12th Oeso World Conference: Cancers Of The Esophagus. 2014; 1325:108-26.
  16. Davelaar AL, Straub D, Buttar NS, Fockens P, Krishnadath KK. Active matrix metalloproteases are expressed early on and are high during the Barrett's esophagus malignancy sequence. Scand J Gastroenterol. 2014; 50(3):321-32.
  17. Tomizawa Y, Iyer PG, Wongkeesong LM, Buttar NS, Lutzke LS, Wu TT, Wang KK. Assessment of the diagnostic performance and interobserver variability of endocytoscopy in Barrett's esophagus: a pilot ex-vivo study. World J Gastroenterol. 2013 Dec 14; 19(46):8652-8.
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  18. Singh S, Sharma AN, Murad MH, Buttar NS, El-Serag HB, Katzka DA, Iyer PG. Central adiposity is associated with increased risk of esophageal inflammation, metaplasia, and adenocarcinoma: a systematic review and meta-analysis. Clin Gastroenterol Hepatol. 2013 Nov; 11(11):1399-1412.e7. Epub 2013 May 22.
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  19. Tomizawa Y, Iyer PG, Wong Kee Song LM, Buttar NS, Lutzke LS, Wang KK. Safety of endoscopic mucosal resection for Barrett's esophagus. Am J Gastroenterol. 2013 Sep; 108(9):1440-7; quiz 1448. Epub 2013 Jul 16.
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  20. Bingener J, Loomis EA, Gostout CJ, Zielinski MD, Buttar NS, Song LM, Baron TH, Ghahfarokhi LS, Rajan E. Feasibility of NOTES omental plug repair of perforated peptic ulcers: results from a clinical pilot trial. Surg Endosc. 2013 Jun; 27(6):2201-8. Epub 2013 Jan 26.
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  21. Bick BL, Song LM, Buttar NS, Baron TH, Nichols FC, Maldonado F, Katzka DA, Enders FT, Topazian MD. Stent-associated esophagorespiratory fistulas: incidence and risk factors. Gastrointest Endosc. 2013 Feb; 77(2):181-9. Epub 2012 Dec 11.
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  22. Bansal A, Lee IH, Hong X, Mathur SC, Tawfik O, Rastogi A, Buttar N, Visvanathan M, Sharma P, Christenson LK. Discovery and validation of Barrett's esophagus microRNA transcriptome by next generation sequencing. PLoS One. 2013; 8(1):e54240. Epub 2013 Jan 23.
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  23. Mathison A, Grzenda A, Lomberk G, Velez G, Buttar N, Tietz P, Hendrickson H, Liebl A, Xiong YY, Gores G, Fernandez-Zapico M, Larusso NF, Faubion W, Shah VH, Urrutia R. Role for Kruppel-like transcription factor 11 in mesenchymal cell function and fibrosis. PLoS One. 2013; 8(9):e75311. Epub 2013 Sep 17.
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  24. Samadder NJ, Bonin EA, Buttar NS, Baron TH, Gostout CJ, Topazian MD, Song LM. Placement of a covered stent for palliation of a cavitated colon cancer by using a novel over-the-scope technique (with video). Gastrointest Endosc. 2012 Dec; 76(6):1275-7. Epub 2012 Mar 7.
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  25. Rao AS, Misra S, Buttar NS, Baron TH, Wong Kee Song LM. Combined endoscopic-interventional radiologic approach for the treatment of bleeding gastric varices in the setting of a large splenorenal shunt. Gastrointest Endosc. 2012 Nov; 76(5):1064-5. Epub 2012 Jan 20.
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  26. Falk GW, Buttar NS, Foster NR, Ziegler KL, Demars CJ, Romero Y, Marcon NE, Schnell T, Corley DA, Sharma P, Cruz-Correa MR, Hur C, Fleischer DE, Chak A, Devault KR, Weinberg DS, Della'Zanna G, Richmond E, Smyrk TC, Mandrekar SJ, Limburg PJ, Cancer Prevention Network. A combination of esomeprazole and aspirin reduces tissue concentrations of prostaglandin E(2) in patients with Barrett's esophagus. Gastroenterology. 2012 Oct; 143(4):917-26.e1. Epub 2012 Jul 11
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  27. Nelsen EM, Kirihara Y, Takahashi N, Shi Q, Lewis JT, Namasivayam V, Buttar NS, Dunagan KT, Prasad GA. Distribution of body fat and its influence on esophageal inflammation and dysplasia in patients with Barrett's esophagus. Clin Gastroenterol Hepatol. 2012 Jul; 10(7):728-34; quiz e61-2. Epub 2012 Mar 17.
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  28. Wang KK, Tian JM, Gorospe E, Penfield J, Prasad G, Goddard T, Wongkeesong M, Buttar NS, Lutzke L, Krishnadath S. Medical and endoscopic management of high-grade dysplasia in Barrett's esophagus. Dis Esophagus. 2012 May; 25(4):349-55. Epub 2012 Mar 12.
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  29. Lomberk G, Mathison AJ, Grzenda A, Seo S, DeMars CJ, Rizvi S, Bonilla-Velez J, Calvo E, Fernandez-Zapico ME, Iovanna J, Buttar NS, Urrutia R. Sequence-specific recruitment of heterochromatin protein 1 via interaction with Kruppel-like factor 11, a human transcription factor involved in tumor suppression and metabolic diseases. J Biol Chem. 2012 Apr 13; 287(16):13026-39. Epub 2012 Feb 08.
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  30. Seo S, Lomberk G, Mathison A, Buttar N, Podratz J, Calvo E, Iovanna J, Brimijoin S, Windebank A, Urrutia R. Kruppel-like factor 11 differentially couples to histone acetyltransferase and histone methyltransferase chromatin remodeling pathways to transcriptionally regulate dopamine D2 receptor in neuronal cells. J Biol Chem. 2012 Apr 13; 287(16):12723-35. Epub 2012 Feb 28.
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  31. Wang Y, Ding Q, Yen CJ, Xia W, Izzo JG, Lang JY, Li CW, Hsu JL, Miller SA, Wang X, Lee DF, Hsu JM, Huo L, Labaff AM, Liu D, Huang TH, Lai CC, Tsai FJ, Chang WC, Chen CH, Wu TT, Buttar NS, Wang KK, Wu Y, Wang H, Ajani J, Hung MC. The crosstalk of mTOR/S6K1 and Hedgehog pathways. Cancer Cell. 2012 Mar 20; 21(3):374-87.
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  32. Daftary GS, Lomberk GA, Buttar NS, Allen TW, Grzenda A, Zhang J, Zheng Y, Mathison AJ, Gada RP, Calvo E, Iovanna JL, Billadeau DD, Prendergast FG, Urrutia R. Detailed structural-functional analysis of the Kruppel-like factor 16 (KLF16) transcription factor reveals novel mechanisms for silencing Sp/KLF sites involved in metabolism and endocrinology. J Biol Chem. 2012 Mar 2; 287(10):7010-25. Epub 2011 Dec 27.
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  33. Bonnefond A, Lomberk G, Buttar N, Busiah K, Vaillant E, Lobbens S, Yengo L, Dechaume A, Mignot B, Simon A, Scharfmann R, Neve B, Tanyolac S, Hodoglugil U, Pattou F, Cave H, Iovanna J, Stein R, Polak M, Vaxillaire M, Froguel P, Urrutia R. Disruption of a novel Kruppel-like transcription factor p300-regulated pathway for insulin biosynthesis revealed by studies of the c.-331 INS mutation found in neonatal diabetes mellitus. J Biol Chem. 2011 Aug 12; 286(32):28414-24. Epub 2011 May 18.
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  34. Bonnefond A, Lomberk G, Buttar N, Busiah K, Vaillant E, Lobbens S, Yengo L, Dechaume A, Mignot B, Simon A, Scharfmann R, Neve B, Tanyolac S, Hodoglugil U, Pattou F, Cave H, Iovanna J, Stein R, Polak M, Vaxillaire M, Froguel P, Urrutia R. Disruption of a novel KLF-p300-regulated pathway for insulin biosynthesis revealed by studies of the c.-331 INS mutation found in neonatal diabetes mellitus J Biol Chem [Epub ahead of print]. 2011 May 18.
  35. Fernandez-Zapico ME, Lomberk GA, Tsuji S, DeMars CJ, Bardsley MR, Lin YH, Almada LL, Han JJ, Mukhopadhyay D, Ordog T, Buttar NS, Urrutia R. A functional family-wide screening of SP/KLF proteins identifies a subset of suppressors of KRAS-mediated cell growth. Biochem J. 2011 Apr 15; 435(2):529-37.
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  36. Wang KK, Okoro N, Prasad G, WongKeeSong M, Buttar NS, Tian J. Endoscopic evaluation and advanced imaging of Barrett's esophagus. Gastrointest Endosc Clin N Am. 2011 Jan; 21(1):39-51.
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  37. Rizvi S, Demars CJ, Comba A, Gainullin VG, Rizvi Z, Almada LL, Wang K, Lomberk G, Fernandez-Zapico ME, Buttar NS. Combinatorial chemoprevention reveals a novel smoothened-independent role of GLI1 in esophageal carcinogenesis. Cancer Res. 2010 Sep 1; 70(17):6787-96. Epub 2010 Jul 20.
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  38. Buttar NS, DeMars CJ, Lomberk G, Rizvi S, Bonilla-Velez J, Achra S, Rashtak S, Wang KK, Fernandez-Zapico ME, Urrutia R. Distinct role of Kruppel-like factor 11 in the regulation of prostaglandin E2 biosynthesis. J Biol Chem. 2010 Apr 9; 285(15):11433-44. Epub 2010 Feb 12.
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  39. Badreddine RJ, Prasad GA, Wang KK, Song LM, Buttar NS, Dunagan KT, Lutzke LS, Borkenhagen LS. Prevalence and predictors of recurrent neoplasia after ablation of Barrett's esophagus. Gastrointest Endosc. 2010 Apr; 71(4):697-703. Epub 2009 Dec 03.
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  40. Singh A, Demars C, Buttar NS. Molecular determinants of metaplastic and neoplastic transformation in the esophageal epithelium. Prog Mol Biol Transl Sci. 2010; 96:63-92.
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  41. Kim SM, Park YY, Park ES, Cho JY, Izzo JG, Zhang D, Kim SB, Lee JH, Bhutani MS, Swisher SG, Wu X, Coombes KR, Maru D, Wang KK, Buttar NS, Ajani JA, Lee JS. Prognostic biomarkers for esophageal adenocarcinoma identified by analysis of tumor transcriptome. PLoS One. 2010; 5(11):e15074. Epub 2010 Nov 30.
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  42. Prasad GA, Wu TT, Wigle DA, Buttar NS, Wongkeesong LM, Dunagan KT, Lutzke LS, Borkenhagen LS, Wang KK. Endoscopic and surgical treatment of mucosal (T1a) esophageal adenocarcinoma in Barrett's esophagus. Gastroenterology. 2009 Sep; 137(3):815-23. Epub 2009 Jun 12.
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  43. Wang KK, Lutzke L, Borkenhagen L, Westra W, Song MW, Prasad G, Buttar NS. Photodynamic therapy for Barrett's esophagus: does light still have a role? Endoscopy. 2008 Dec; 40(12):1021-5. Epub 2008 Dec 08.
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  44. Prasad GA, Wang KK, Halling KC, Buttar NS, Wongkeesong LM, Zinsmeister AR, Brankley SM, Westra WM, Lutzke LS, Borkenhagen LS, Dunagan K. Correlation of histology with biomarker status after photodynamic therapy in Barrett esophagus. Cancer. 2008 Aug 1; 113(3):470-6.
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  45. Prasad GA, Wang KK, Halling KC, Buttar NS, Wongkeesong LM, Zinsmeister AR, Brankley SM, Fritcher EG, Westra WM, Krishnadath KK, Lutzke LS, Borkenhagen LS. Utility of biomarkers in prediction of response to ablative therapy in Barrett's esophagus. Gastroenterology. 2008 Aug; 135(2):370-9. Epub 2008 May 07.
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  46. Yen CJ, Izzo JG, Lee DF, Guha S, Wei Y, Wu TT, Chen CT, Kuo HP, Hsu JM, Sun HL, Chou CK, Buttar NS, Wang KK, Huang P, Ajani J, Hung MC. Bile acid exposure up-regulates tuberous sclerosis complex 1/mammalian target of rapamycin pathway in Barrett's-associated esophageal adenocarcinoma. Cancer Res. 2008 Apr 15; 68(8):2632-40.
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  47. Ilyas S, Demars CJ, Buttar NS. Chemoprevention in Barrett's Esophagus. Int J Gastrointest Cancer. 2008 Jan 03. [Epub ahead of print]
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  48. Milano F, Rygiel AM, Buttar N, Bergman JJ, Sondermeijer C, van Baal JW, ten Brinke A, Kapsenberg M, van Ham SM, Peppelenbosch MP, Krishnadath KK. An ex vivo readout for evaluation of dendritic cell-induced autologous cytotoxic T lymphocyte responses against esophageal cancer. Cancer Immunol Immunother. 2007 Dec; 56(12):1967-77. Epub 2007 Jun 13.
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  49. Song S, Guha S, Liu K, Buttar NS, Bresalier RS. COX-2 induction by unconjugated bile acids involves reactive oxygen species-mediated signalling pathways in Barrett's oesophagus and oesophageal adenocarcinoma. Gut. 2007 Nov; 56(11):1512-21. Epub 2007 Jun 29.
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  50. Prasad GA, Buttar NS, Wongkeesong LM, Lewis JT, Sanderson SO, Lutzke LS, Borkenhagen LS, Wang KK. Significance of neoplastic involvement of margins obtained by endoscopic mucosal resection in Barrett's esophagus. Am J Gastroenterol. 2007 Nov; 102(11):2380-6. Epub 2007 Jul 19.
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  51. Milano F, van Baal JW, Buttar NS, Rygiel AM, de Kort F, DeMars CJ, Rosmolen WD, Bergman JJ, VAn Marle J, Wang KK, Peppelenbosch MP, Krishnadath KK. Bone morphogenetic protein 4 expressed in esophagitis induces a columnar phenotype in esophageal squamous cells. Gastroenterology. 2007 Jun; 132(7):2412-21. Epub 2007 Mar 19.
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  52. Prasad GA, Wang KK, Baron TH, Buttar NS, Wongkeesong LM, Roberts LR, LeRoy AJ, Lutzke LS, Borkenhagen LS. Factors associated with increased survival after photodynamic therapy for cholangiocarcinoma. Clin Gastroenterol Hepatol. 2007 Jun; 5(6):743-8.
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  53. Prasad GA, Wang KK, Buttar NS, Wongkeesong LM, Krishnadath KK, Nichols FC 3rd, Lutzke LS, Borkenhagen LS. Long-term survival following endoscopic and surgical treatment of high-grade dysplasia in Barrett's esophagus. Gastroenterology. 2007 Apr; 132(4):1226-33. Epub 2007 Feb 07.
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  54. Prasad GA, Wang KK, Buttar NS, Wongkeesong LM, Lutzke LS, Borkenhagen LS. Predictors of stricture formation after photodynamic therapy for high-grade dysplasia in Barrett's esophagus. Gastrointest Endosc. 2007 Jan; 65(1):60-6.
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  55. Ilyas S, DeMars CJ, Buttar NS. Chemoprevention in Barrett's esophagus. J Gastrointest Cancer. 2007; 38(1):1-9.
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  56. Buttar NS, Fernandez-Zapico ME, Urrutia R. Key role of Kruppel-like factor proteins in pancreatic cancer and other gastrointestinal neoplasias. Curr Opin Gastroenterol. 2006 Sep; 22(5):505-11.
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  57. Prasad GA, Wang KK, Lutzke LS, Lewis JT, Sanderson SO, Buttar NS, Wong Kee Song LM, Borkenhagen LS, Burgart LJ. Frozen section analysis of esophageal endoscopic mucosal resection specimens in the real-time management of Barrett's esophagus. Clin Gastroenterol Hepatol. 2006 Feb; 4(2):173-8.
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  58. Buttar NS, Wiersema MJ, Wang KK, DeMars CJ, Prasad GA, Lutzke LS. Rodent endosonography to monitor esophageal cancer. Int J Gastrointest Cancer. 2006; 37(2-3):84-90.
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  59. Maple JT, Petersen BT, Baron TH, Gostout CJ, Wong Kee Song LM, Buttar NS. Direct percutaneous endoscopic jejunostomy: Outcomes in 307 consecutive attempts. Am J Gastroenterol. 2005 Dec; 100(12):2681-8.
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  60. Wang KK, Wongkeesong M, Buttar NS. American Gastroenterological Association medical position statement: Role of the gastroenterologist in the management of esophageal carcinoma. Gastroenterology. 2005 May; 128(5):1468-70.
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  61. Wang KK, Wongkeesong M, Buttar NS. American Gastroenterological Association technical review on the role of the gastroenterologist in the management of esophageal carcinoma. Gastroenterology. 2005 May; 128(5):1471-505.
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  62. Buttar NS, Wang KK. Mechanisms of disease: Carcinogenesis in Barrett's esophagus. Nature Clinical Practice Gastroenterology & Hepatology. 2004 Dec; 1(2):106-12.
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  63. Pacifico RJ, Wang KK, Wongkeesong LM, Buttar NS, Lutzke LS. Combined endoscopic mucosal resection and photodynamic therapy versus esophagectomy for management of early adenocarcinoma in Barrett's esophagus. Clin Gastroenterol Hepatol. 2003 Jul; 1(4):252-7.
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  64. Buttar NS, Wang KK, Leontovich O, Westcott JY, Pacifico RJ, Anderson MA, Krishnadath KK, Lutzke LS, Burgart LJ. Chemoprevention of esophageal adenocarcinoma by COX-2 inhibitors in an animal model of Barrett's esophagus. Gastroenterology. 2002 Apr; 122(4):1101-12.
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  65. Buttar NS, Wang KK, Anderson MA, Dierkhising RA, Pacifico RJ, Krishnadath KK, Lutzke LS. The effect of selective cyclooxygenase-2 inhibition in Barrett's esophagus epithelium: an in vitro study. J Natl Cancer Inst. 2002 Mar 20; 94(6):422-9.
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  66. Buttar NS, Wang KK, Lutzke LS, Krishnadath KK, Anderson MA. Combined endoscopic mucosal resection and photodynamic therapy for esophageal neoplasia within Barrett's esophagus. Gastrointest Endosc. 2001 Dec; 54(6):682-8.
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  67. Kendrick ML, Buttar NS, Anderson MA, Lutzke LS, Peia D, Wang KK, Sarr MG. Contribution of intraoperative enteroscopy in the management of obscure gastrointestinal bleeding. J Gastrointest Surg. 2001 Mar-Apr; 5(2):162-7.
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  68. Buttar NS, Falk GW. Pathogenesis of gastroesophageal reflux and Barrett esophagus. Mayo Clin Proc. 2001 Feb; 76(2):226-34.
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  69. Buttar NS, Wang KK. The "aspirin" of the new millennium: cyclooxygenase-2 inhibitors. Mayo Clin Proc. 2000 Oct; 75(10):1027-38.
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  70. Krishnadath KK, Wang KK, Taniguchi K, Sebo TJ, Buttar NS, Anderson MA, Lutzke LS, Liu W. Persistent genetic abnormalities in Barrett's esophagus after photodynamic therapy. Gastroenterology. 2000 Sep; 119(3):624-30.
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