Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • M.S., Vanderbilt University 2003
  • M.D., Sapienza University of Rome (Italy) 1988
• 

  Previous Appointments & Affiliations

  • Member of Sarah W. Stedman Nutrition and Metabolis, Sarah Stedman Nutrition & Metabolism Center, Duke Molecular Physiology Institute 2007 - 2015
  • Associate Professor of Surgery, Surgery, Metabolic and Weight Loss Surgery, Surgery 2008 - 2015
  • Instructor, Temporary of General Surgery in Surgery, Surgery, Section of Surgical Disciplines 2007 - 2008
• Research
• 

  Selected Grants

  • Impact of gastric bypass surgery on risk of CVD in type 2 diabetes mellitus awarded by National Institutes of Health 2006 - 2011
• Publications & Artistic Works
• 

  Selected Publications

  • Academic Articles

    • Khalid, Syed I., Samantha Maasarani, Julia Wiegmann, Aaron L. Wiegmann, Adan Z. Becerra, Philip Omotosho, and Alfonso Torquati. “Association of Bariatric Surgery and Risk of Cancer in Patients With Morbid Obesity.” Ann Surg 275, no. 1 (January 1, 2022): 1–6. https://doi.org/10.1097/SLA.0000000000005035.
       Full Text  Link to Item
    • Shantavasinkul, Prapimporn Chattranukulchai, Phillip Omotosho, Michael J. Muehlbauer, Michael Natoli, Leonor Corsino, Jenny Tong, Dana Portenier, and Alfonso Torquati. “Metabolic profiles, energy expenditures, and body compositions of the weight regain versus sustained weight loss patients who underwent Roux-en-Y gastric bypass.” Surg Obes Relat Dis 17, no. 12 (December 2021): 2015–25. https://doi.org/10.1016/j.soard.2021.09.007.
       Full Text  Link to Item
    • Williams, Michael D., Miles W. Grunvald, Nicholas J. Skertich, Dana M. Hayden, Cristina O’Donoghue, Alfonso Torquati, and Adan Z. Becerra. “Disruption in general surgery: Randomized controlled trials and changing paradigms.” Surgery 170, no. 6 (December 2021): 1862–66. https://doi.org/10.1016/j.surg.2021.05.011.
       Full Text  Link to Item
    • Williams, Michael D., Seungjun Kim, Marc Sarran, Syed I. Khalid, Adan Z. Becerra, Alfonso Torquati, and Philip Omotosho. “The effect of bariatric surgery on ischemic stroke risk.” Surg Obes Relat Dis 17, no. 12 (December 2021): 1949–55. https://doi.org/10.1016/j.soard.2021.09.006.
       Full Text  Link to Item
    • Khalid, Syed I., Samantha Maasarani, Rachyl M. Shanker, Adan Z. Becerra, Philip Omotosho, and Alfonso Torquati. “Social determinants of health and their impact on rates of postoperative complications among patients undergoing vertical sleeve gastrectomy.” Surgery, July 21, 2021. https://doi.org/10.1016/j.surg.2021.06.023.
       Full Text  Link to Item
    • Becerra, Adan Z., Christopher T. Aquina, Dana M. Hayden, and Alfonso F. Torquati. “The top 100 most disruptive publications in academic surgery journals: 1954-2014.” Am J Surg 221, no. 3 (March 2021): 614–17. https://doi.org/10.1016/j.amjsurg.2020.07.037.
       Full Text  Link to Item
    • Rossi, Isolina, Philip Omotosho, Jennifer Poirier, Anna Spagnoli, and Alfonso Torquati. “Roux-en-Y gastric bypass decreases serum inflammatory markers and cardiovascular risk factors in obese diabetics.” Surgery 169, no. 3 (March 2021): 539–42. https://doi.org/10.1016/j.surg.2020.09.039.
       Full Text  Link to Item
    • Khalid, Syed I., Ravi S. Nunna, Samantha Maasarani, Rachyl M. Shanker, Mandana Behbahani, Corbin P. Edmondson, Ankit I. Mehta, et al. “Laparoscopic-Assisted Versus Mini-Open Laparotomy for Ventriculoperitoneal Shunt Placement in the Medicare Population.” Neurosurgery 88, no. 4 (March 2021): 812–18. https://doi.org/10.1093/neuros/nyaa541.
       Full Text
    • Jacobson, Richard, Samantha Terranella, Connor Booker, Syed Khalid, Alfonso Torquati, and Philip Omotosho. “The Impact of Perioperative Antibiotic Prophylaxis on Weight Loss Following Laparoscopic Sleeve Gastrectomy.” J Laparoendosc Adv Surg Tech A 30, no. 9 (September 2020): 998–1000. https://doi.org/10.1089/lap.2020.0449.
       Full Text  Link to Item
    • Khalid, Syed I., Philip A. Omotosho, Anna Spagnoli, and Alfonso Torquati. “Association of Bariatric Surgery With Risk of Fracture in Patients With Severe Obesity.” Jama Netw Open 3, no. 6 (June 1, 2020): e207419. https://doi.org/10.1001/jamanetworkopen.2020.7419.
       Full Text  Link to Item
    • Luhrs, Andrew R., Gerardo Davalos, Reginald Lerebours, Jin Yoo, Chan Park, Lawrence Tabone, Philip Omotosho, Alfonso Torquati, Dana Portenier, and Alfredo D. Guerron. “Determining changes in bone metabolism after bariatric surgery in postmenopausal women.” Surg Endosc 34, no. 4 (April 2020): 1754–60. https://doi.org/10.1007/s00464-019-06922-8.
       Full Text  Link to Item
    • Tangalakis, Laurel L., Lawrence Tabone, Anna Spagnoli, Mike Muehlbauer, Philip Omotosho, and Alfonso Torquati. “Effects of Roux-en-Y Gastric Bypass on Osteoclast Activity and Bone Density in Morbidly Obese Patients with Type 2 Diabetes.” Obes Surg 30, no. 1 (January 2020): 290–95. https://doi.org/10.1007/s11695-019-04154-2.
       Full Text  Link to Item
    • Torquati, Alfonso, Prapimporn Chattranukulchai Shantavasinkul, Philip Omotosho, Leonor Corsino, and Anna Spagnoli. “Perioperative changes in prouroguanylin hormone response in severely obese subjects after bariatric surgery.” Surgery 166, no. 4 (October 2019): 456–59. https://doi.org/10.1016/j.surg.2019.06.037.
       Full Text  Link to Item
    • Chen, Di, Rong Xie, Bing Shu, Alan L. Landay, Changli Wei, Jochen Reiser, Anna Spagnoli, et al. “Wnt signaling in bone, kidney, intestine, and adipose tissue and interorgan interaction in aging.” Ann N Y Acad Sci 1442, no. 1 (April 2019): 48–60. https://doi.org/10.1111/nyas.13945.
       Full Text  Link to Item
    • Zhou, Randal, Jennifer Poirier, Alfonso Torquati, and Philip Omotosho. “Short-Term Outcomes of Conversion of Failed Gastric Banding to Laparoscopic Sleeve Gastrectomy or Roux-En-Y Gastric Bypass: a Meta-Analysis.” Obes Surg 29, no. 2 (February 2019): 420–25. https://doi.org/10.1007/s11695-018-3538-8.
       Full Text  Link to Item
    • Shantavasinkul, Prapimporn Chattranukulchai, Michael J. Muehlbauer, James R. Bain, Olga R. Ilkayeva, Damian M. Craig, Christopher B. Newgard, Laura P. Svetkey, Svati H. Shah, and Alfonso Torquati. “Improvement in insulin resistance after gastric bypass surgery is correlated with a decline in plasma 2-hydroxybutyric acid.” Surg Obes Relat Dis 14, no. 8 (August 2018): 1126–32. https://doi.org/10.1016/j.soard.2018.03.033.
       Full Text  Link to Item
    • Deal, Rebecca A., Yueming Tang, Reid Fletcher, Alfonso Torquati, and Philip Omotosho. “Understanding intestinal glucose transporter expression in obese compared to non-obese subjects.” Surgical Endoscopy 32, no. 4 (April 2018): 1755–61. https://doi.org/10.1007/s00464-017-5858-5.
       Full Text
    • Fletcher, Reid, Rebecca Deal, John Kubasiak, Alfonso Torquati, and Philip Omotosho. “Predictors of Increased Length of Hospital Stay Following Laparoscopic Sleeve Gastrectomy from the National Surgical Quality Improvement Program.” J Gastrointest Surg 22, no. 2 (February 2018): 274–78. https://doi.org/10.1007/s11605-017-3642-4.
       Full Text  Link to Item
    • Torquati, Alfonso. “Author's Response.” Surg Obes Relat Dis 13, no. 7 (July 2017): 1254. https://doi.org/10.1016/j.soard.2017.03.023.
       Full Text  Link to Item
    • Shantavasinkul, Prapimporn Chattranukulchai, Philip Omotosho, Leonor Corsino, Dana Portenier, and Alfonso Torquati. “Predictors of weight regain in patients who underwent Roux-en-Y gastric bypass surgery.” Surg Obes Relat Dis 12, no. 9 (November 2016): 1640–45. https://doi.org/10.1016/j.soard.2016.08.028.
       Full Text  Link to Item
    • Shantavasinkul, Prapimporn C., Alfonso Torquati, and Leonor Corsino. “Post-gastric bypass hypoglycaemia: a review.” Clin Endocrinol (Oxf) 85, no. 1 (July 2016): 3–9. https://doi.org/10.1111/cen.13033.
       Full Text  Link to Item
    • Omotosho, Philip, Alessandro Mor, Prapimporn Chattranukulchai Shantavasinkul, Leonor Corsino, and Alfonso Torquati. “Gastric bypass significantly improves quality of life in morbidly obese patients with type 2 diabetes.” Surg Endosc 30, no. 7 (July 2016): 2857–64. https://doi.org/10.1007/s00464-015-4568-0.
       Full Text  Link to Item
    • Chen, Yijun, Leonor Corsino, Prapimporn Chattranukulchai Shantavasinkul, John Grant, Dana Portenier, Laura Ding, and Alfonso Torquati. “Gastric Bypass Surgery Leads to Long-term Remission or Improvement of Type 2 Diabetes and Significant Decrease of Microvascular and Macrovascular Complications.” Ann Surg 263, no. 6 (June 2016): 1138–42. https://doi.org/10.1097/SLA.0000000000001509.
       Full Text  Link to Item
    • Omotosho, Philip A., Joel A. Rodriguez, Kunoor Jain-Spangler, Alessandro Mor, and Alfonso Torquati. “Predictors of long-term success after laparoscopic Roux-en-Y gastric bypass in African-American women.” Surg Obes Relat Dis 12, no. 2 (February 2016): 253–56. https://doi.org/10.1016/j.soard.2015.10.078.
       Full Text  Link to Item
    • Fisichella, P Marco, Steven R. DeMeester, Eric Hungness, Silvana Perretta, Nathaniel J. Soper, Alexander Rosemurgy, Alfonso Torquati, Ajit K. Sachdeva, and Marco G. Patti. “Emerging Techniques in Minimally Invasive Surgery. Pros and Cons.” J Gastrointest Surg 19, no. 7 (July 2015): 1355–62. https://doi.org/10.1007/s11605-015-2766-7.
       Full Text  Link to Item
    • Mor, Alessandro, Philip Omotosho, and Alfonso Torquati. “Cardiovascular risk in obese diabetic patients is significantly reduced one year after gastric bypass compared to one year of diabetes support and education.” Surg Endosc 28, no. 10 (October 2014): 2815–20. https://doi.org/10.1007/s00464-014-3550-6.
       Full Text  Link to Item
    • Torquati, Alfonso. “Comment on: Risk prediction of complications of metabolic syndrome before and 6 years after gastric bypass.” Surg Obes Relat Dis 10, no. 4 (July 2014): 582–83. https://doi.org/10.1016/j.soard.2014.02.042.
       Full Text  Link to Item
    • Mor, Alessandro, Lawrence Tabone, Philip Omotosho, and Alfonso Torquati. “Improved insulin sensitivity after gastric bypass correlates with decreased total body fat, but not with changes in free fatty acids.” Surg Endosc 28, no. 5 (May 2014): 1489–93. https://doi.org/10.1007/s00464-013-3338-0.
       Full Text  Link to Item
    • Khoo, Chin Meng, Michael J. Muehlbauer, Robert D. Stevens, Zehra Pamuklar, Jiegen Chen, Christopher B. Newgard, and Alfonso Torquati. “Postprandial metabolite profiles reveal differential nutrient handling after bariatric surgery compared with matched caloric restriction.” Ann Surg 259, no. 4 (April 2014): 687–93. https://doi.org/10.1097/SLA.0b013e318296633f.
       Full Text  Link to Item
    • Khoo, Chin Meng, Jiegen Chen, Zehra Pamuklar, and Alfonso Torquati. “Effects of Roux-en-Y gastric bypass or diabetes support and education on insulin sensitivity and insulin secretion in morbidly obese patients with type 2 diabetes.” Ann Surg 259, no. 3 (March 2014): 494–501. https://doi.org/10.1097/SLA.0b013e318294d19c.
       Full Text  Link to Item
    • Jain-Spangler, Kunoor, Dana Portenier, Alfonso Torquati, and Ranjan Sudan. “Conversion of vertical banded gastroplasty to stand-alone sleeve gastrectomy or biliopancreatic diversion with duodenal switch.” J Gastrointest Surg 17, no. 4 (April 2013): 805–8. https://doi.org/10.1007/s11605-013-2165-x.
       Full Text  Link to Item
    • Mor, Alessandro, Rami Lutfi, and Alfonso Torquati. “Esophageal acid-clearance physiology is altered after Nissen-Collis gastroplasty.” Surg Endosc 27, no. 4 (April 2013): 1334–38. https://doi.org/10.1007/s00464-012-2609-5.
       Full Text  Link to Item
    • Corbin, Karen D., Manal F. Abdelmalek, Melanie D. Spencer, Kerry-Ann da Costa, Joseph A. Galanko, Wei Sha, Ayako Suzuki, et al. “Genetic signatures in choline and 1-carbon metabolism are associated with the severity of hepatic steatosis.” Faseb Journal : Official Publication of the Federation of American Societies for Experimental Biology 27, no. 4 (April 2013): 1674–89. https://doi.org/10.1096/fj.12-219097.
       Full Text
    • Mor, Alessandro, Elizabeth Keenan, Dana Portenier, and Alfonso Torquati. “Case-matched analysis comparing outcomes of revisional versus primary laparoscopic Roux-en-Y gastric bypass.” Surg Endosc 27, no. 2 (February 2013): 548–52. https://doi.org/10.1007/s00464-012-2477-z.
       Full Text  Link to Item
    • Pamuklar, Zehra N., Jiegen Chen, Michael Muehlbauer, Anna Spagnoli, and Alfonso Torquati. “Necdin-E2F4 interaction provides insulin-sensitizing effect after weight loss induced by gastric bypass surgery.” Surg Obes Relat Dis 9, no. 1 (January 2013): 94–99. https://doi.org/10.1016/j.soard.2011.10.014.
       Full Text  Link to Item
    • Chen, Jie-Gen, Anna Spagnoli, and Alfonso Torquati. “Adipogenic differentiation of adipose tissue-derived human mesenchymal stem cells: effect of gastric bypass surgery.” Surg Endosc 26, no. 12 (December 2012): 3449–56. https://doi.org/10.1007/s00464-012-2353-x.
       Full Text  Link to Item
    • Mor, Alessandro, Lindsey Sharp, Dana Portenier, Ranjan Sudan, and Alfonso Torquati. “Weight loss at first postoperative visit predicts long-term outcome of Roux-en-Y gastric bypass using Duke weight loss surgery chart.” Surg Obes Relat Dis 8, no. 5 (September 2012): 556–60. https://doi.org/10.1016/j.soard.2012.06.014.
       Full Text  Link to Item
    • Chen, Jiegen, Zehra Pamuklar, Anna Spagnoli, and Alfonso Torquati. “Serum leptin levels are inversely correlated with omental gene expression of adiponectin and markedly decreased after gastric bypass surgery.” Surg Endosc 26, no. 5 (May 2012): 1476–80. https://doi.org/10.1007/s00464-011-2059-5.
       Full Text  Link to Item
    • Corbin, Karen D., Melanie D. Spencer, Kerry-Ann da Costa, Wei Sha, Manal F. Abdelmalek, Yiping Pan, Ayako Suzuki, et al. “Genotype-based hierarchical clustering reveals a panel of polymorphisms in one carbon metabolism that are associated with obesity.” Faseb Journal 26 (April 1, 2012).
       Link to Item
    • Evans, Sarah, Zehra Pamuklar, Jonathan Rosko, Patrick Mahaney, Ning Jiang, Chan Park, and Alfonso Torquati. “Gastric bypass surgery restores meal stimulation of the anorexigenic gut hormones glucagon-like peptide-1 and peptide YY independently of caloric restriction.” Surg Endosc 26, no. 4 (April 2012): 1086–94. https://doi.org/10.1007/s00464-011-2004-7.
       Full Text  Link to Item
    • Chen, Jiegen, Anna Spagnoli, and Alfonso Torquati. “Omental gene expression of adiponectin correlates with degree of insulin sensitivity before and after gastric bypass surgery.” Obes Surg 22, no. 3 (March 2012): 472–77. https://doi.org/10.1007/s11695-011-0568-x.
       Full Text  Link to Item
    • Cheregi, John R., Fred Tiesenga, Alfonso Torquati, and Rami Lutfi. “Initial learning experience of laparoendoscopic single site (LESS) gastric banding: finding predictors of success.” Obes Surg 22, no. 3 (March 2012): 433–36. https://doi.org/10.1007/s11695-011-0552-5.
       Full Text  Link to Item
    • Park, Chan W., and Alfonso Torquati. “Physiology of weight loss surgery.” Surg Clin North Am 91, no. 6 (December 2011): 1149–vii. https://doi.org/10.1016/j.suc.2011.08.009.
       Full Text  Link to Item
    • Talarico, Joseph A., Alfonso Torquati, Erin M. McCarthy, Steven Bonomo, and Rami E. Lutfi. “Pre-Lap-Band group education in Medicaid population: does it really make a difference?” Surg Obes Relat Dis 6, no. 4 (July 2010): 356–60. https://doi.org/10.1016/j.soard.2009.11.021.
       Full Text  Link to Item
    • Pryor, A. D., B. M. Yurcisin, S. Bachman, A. Madan, D. Stefanidis, and A. Torquati. “Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) grant impact on recipient academic career (Accepted).” Surgical Endoscopy, December 29, 2009, 1–5. https://doi.org/10.1007/s00464-009-0802-y.
       Full Text
    • Urbach, D. R., K. D. Horvath, N. N. Baxter, B. A. Jobe, A. K. Madan, A. D. Pryor, L. Khaitan, et al. “A research agenda for gastrointestinal and endoscopic surgery.” Surg Endosc 21, no. 9 (September 2007): 1518–25. https://doi.org/10.1007/s00464-006-9141-4.
       Full Text  Link to Item
    • Youssef, Y., W. O. Richards, N. Sekhar, J. Kaiser, A. Spagnoli, N. Abumrad, and A. Torquati. “Risk of secondary hyperparathyroidism after laparoscopic gastric bypass surgery in obese women.” Surg Endosc 21, no. 8 (August 2007): 1393–96. https://doi.org/10.1007/s00464-007-9228-6.
       Full Text  Link to Item
    • Clements, Ronald H., Eric J. DeMaria, J Patrick O’Leary, James R. Jude, and Alfonso Torquati. “Effect of gastric bypass operation on Framingham and actual risk of cardiovascular events in class II to III obesity - Discussion.” Journal of the American College of Surgeons 204, no. 5 (May 1, 2007): 782–83.
       Link to Item
    • Torquati, Alfonso, Kelly Wright, Willie Melvin, and William Richards. “Effect of gastric bypass operation on Framingham and actual risk of cardiovascular events in class II to III obesity.” J Am Coll Surg 204, no. 5 (May 2007): 776–82. https://doi.org/10.1016/j.jamcollsurg.2006.12.038.
       Full Text  Link to Item
    • Torquati, Alfonso, and William O. Richards. “Endoluminal GERD treatments: critical appraisal of current literature with evidence-based medicine instruments.” Surg Endosc 21, no. 5 (May 2007): 697–706. https://doi.org/10.1007/s00464-007-9344-3.
       Full Text  Link to Item
    • Sekhar, N., A. Torquati, Y. Youssef, J. K. Wright, and W. O. Richards. “A comparison of 399 open and 568 laparoscopic gastric bypasses performed during a 4-year period.” Surg Endosc 21, no. 4 (April 2007): 665–68. https://doi.org/10.1007/s00464-006-9151-2.
       Full Text  Link to Item
    • Torquati, Alfonso, Rami E. Lutfi, and William O. Richards. “Predictors of early quality-of-life improvement after laparoscopic gastric bypass surgery.” Am J Surg 193, no. 4 (April 2007): 471–75. https://doi.org/10.1016/j.amjsurg.2006.08.065.
       Full Text  Link to Item
    • Youssef, Yassar, William O. Richards, Kenneth Sharp, Michael Holzman, Nikilesh Sekhar, Joan Kaiser, and Alfonso Torquati. “Relief of dysphagia after laparoscopic Heller myotomy improves long-term quality of life.” J Gastrointest Surg 11, no. 3 (March 2007): 309–13. https://doi.org/10.1007/s11605-006-0050-6.
       Full Text  Link to Item
    • Youssef, Y. K., N. Shekar, R. Lutfi, W. O. Richards, and A. Torquati. “Long-term evaluation of patient satisfaction and reflux symptoms after laparoscopic fundoplication with Collis gastroplasty.” Surg Endosc 20, no. 11 (November 2006): 1702–5. https://doi.org/10.1007/s00464-006-0048-x.
       Full Text  Link to Item
    • Rothstein, Richard, Charles Filipi, Karel Caca, Ronald Pruitt, Klaus Mergener, Alfonso Torquati, Gregory Haber, et al. “Endoscopic full-thickness plication for the treatment of gastroesophageal reflux disease: A randomized, sham-controlled trial.” Gastroenterology 131, no. 3 (September 2006): 704–12. https://doi.org/10.1053/j.gastro.2006.07.004.
       Full Text  Link to Item
    • Berch, Barry R., Alfonso Torquati, Rami Edward Lutfi, and William O. Richards. “Experience with the optical access trocar for safe and rapid entry in the performance of laparoscopic gastric bypass.” Surg Endosc 20, no. 8 (August 2006): 1238–41. https://doi.org/10.1007/s00464-005-0188-4.
       Full Text  Link to Item
    • Eckhauser, Aaron, Alfonso Torquati, Yassar Youssef, Joan L. Kaiser, and William O. Richards. “Internal hernia: postoperative complication of roux-en-Y gastric bypass surgery.” Am Surg 72, no. 7 (July 2006): 581–84.
       Link to Item
    • Silver, Heidi J., Alfonso Torquati, Gordon L. Jensen, and William O. Richards. “Weight, dietary and physical activity behaviors two years after gastric bypass.” Obes Surg 16, no. 7 (July 2006): 859–64. https://doi.org/10.1381/096089206777822296.
       Full Text  Link to Item
    • Lutfi, R., A. Torquati, N. Sekhar, and W. O. Richards. “Predictors of success after laparoscopic gastric bypass: a multivariate analysis of socioeconomic factors.” Surg Endosc 20, no. 6 (June 2006): 864–67. https://doi.org/10.1007/s00464-005-0115-8.
       Full Text  Link to Item
    • Torquati, Alfonso, William O. Richards, Michael D. Holzman, and Kenneth W. Sharp. “Laparoscopic myotomy for achalasia: predictors of successful outcome after 200 cases.” Ann Surg 243, no. 5 (May 2006): 587–91. https://doi.org/10.1097/01.sla.0000216782.10502.47.
       Full Text  Link to Item
    • Torquati, A., R. Lutfi, L. Khaitan, K. W. Sharp, and W. O. Richards. “Heller myotomy vs Heller myotomy plus Dor fundoplication: cost-utility analysis of a randomized trial.” Surg Endosc 20, no. 3 (March 2006): 389–93. https://doi.org/10.1007/s00464-005-0116-7.
       Full Text  Link to Item
    • Sekhar, N., A. Torquati, R. Lutfi, and W. O. Richards. “Endoscopic evaluation of the gastrojejunostomy in laparoscopic gastric bypass. A series of 340 patients without postoperative leak.” Surg Endosc 20, no. 2 (February 2006): 199–201. https://doi.org/10.1007/s00464-005-0118-5.
       Full Text  Link to Item
    • Hansen, Erik N., Alfonso Torquati, and Naji N. Abumrad. “Results of bariatric surgery.” Annu Rev Nutr 26 (2006): 481–511. https://doi.org/10.1146/annurev.nutr.26.061505.111242.
       Full Text  Link to Item
    • Berch, Barry R., R Dean Nava, Alfonso Torquati, Kenneth W. Sharp, and William O. Richards. “Myotomy: follow-up study of 50 patients.” J Gastrointest Surg 9, no. 9 (December 2005): 1326–31. https://doi.org/10.1016/j.gassur.2005.09.009.
       Full Text  Link to Item
    • Torquati, Alfonso, Rami Lutfi, Naji Abumrad, and William O. Richards. “Is Roux-en-Y gastric bypass surgery the most effective treatment for type 2 diabetes mellitus in morbidly obese patients?” J Gastrointest Surg 9, no. 8 (November 2005): 1112–16. https://doi.org/10.1016/j.gassur.2005.07.016.
       Full Text  Link to Item
    • Lutfi, R. E., A. Torquati, J. Kaiser, M. Holzman, and W. O. Richards. “Three year's experience with the Stretta procedure: did it really make a difference?” Surg Endosc 19, no. 2 (February 2005): 289–95. https://doi.org/10.1007/s00464-004-8938-2.
       Full Text  Link to Item
    • Richards, William O., Alfonso Torquati, and Rami Lutfi. “The current treatment of achalasia.” Adv Surg 39 (2005): 285–314. https://doi.org/10.1016/j.yasu.2005.04.002.
       Full Text  Link to Item
    • Grande, Michele, Alfonso Torquati, Gianfranco Tucci, Francesco Rulli, Ottavio Adorisio, and Attilio Maria Farinon. “Preoperative risk factors for common bile duct stones: defining the patient at high risk in the laparoscopic cholecystectomy era.” J Laparoendosc Adv Surg Tech A 14, no. 5 (October 2004): 281–86. https://doi.org/10.1089/lap.2004.14.281.
       Full Text  Link to Item
    • Torquati, A., H. L. Houston, J. Kaiser, M. D. Holzman, and W. O. Richards. “Long-term follow-up study of the Stretta procedure for the treatment of gastroesophageal reflux disease.” Surg Endosc 18, no. 10 (October 2004): 1475–79. https://doi.org/10.1007/s00464-003-9181-y.
       Full Text  Link to Item
    • Lutfi, R. E., A. Torquati, and W. O. Richards. “Endoscopic treatment modalities for gastroesophageal reflux disease.” Surg Endosc 18, no. 9 (September 2004): 1299–1315. https://doi.org/10.1007/s00464-003-8292-9.
       Full Text  Link to Item
    • Richards, William O., Alfonso Torquati, Michael D. Holzman, Leena Khaitan, Daniel Byrne, Rami Lutfi, and Kenneth W. Sharp. “Heller myotomy versus Heller myotomy with Dor fundoplication for achalasia: a prospective randomized double-blind clinical trial.” Ann Surg 240, no. 3 (September 2004): 405–12. https://doi.org/10.1097/01.sla.0000136940.32255.51.
       Full Text  Link to Item
    • Dassinger, M. S., A. Torquati, H. L. Houston, M. D. Holzman, K. W. Sharp, and W. O. Richards. “Laparoscopic fundoplication: 5-year follow-up.” Am Surg 70, no. 8 (August 2004): 691–94.
       Link to Item
    • Torquati, Alfonso, Lynda O’rear, Lara Longobardi, Anna Spagnoli, William O. Richards, and R. Daniel Beauchamp. “RUNX3 inhibits cell proliferation and induces apoptosis by reinstating transforming growth factor beta responsiveness in esophageal adenocarcinoma cells.” Surgery 136, no. 2 (August 2004): 310–16. https://doi.org/10.1016/j.surg.2004.05.005.
       Full Text  Link to Item
    • Lutfi, Rami E., Alfonso Torquati, and William O. Richards. “The endoscopic radiofrequency approach to management of GERD.” Curr Opin Otolaryngol Head Neck Surg 12, no. 3 (June 2004): 191–96. https://doi.org/10.1097/01.moo.0000122307.13359.02.
       Full Text  Link to Item
    • Richards, W. O., H. L. Houston, A. Torquati, L. Khaitan, M. D. Holzman, and K. W. Sharp. “Paradigm shift in the management of gastroesophageal reflux disease.” Annals of Surgery 237, no. 5 (May 1, 2003): 638–48.
    • Richards, William O., Hugh L. Houston, Alfonso Torquati, Leena Khaitan, Michael D. Holzman, and Kenneth W. Sharp. “Paradigm shift in the management of gastroesophageal reflux disease.” Ann Surg 237, no. 5 (May 2003): 638–47. https://doi.org/10.1097/01.SLA.0000064358.25509.36.
       Full Text  Link to Item
    • Torquati, A., and W. Richards. “The Stretta procedure for the treatment of gastro esophageal reflux disease (GERD).” Minim Invasive Ther Allied Technol 11, no. 5–6 (January 2002): 271–77. https://doi.org/10.1080/13645706.2003.11873725.
       Full Text  Link to Item
    • Farinon, A. M., I. Stroppa, A. Torquati, and P. D’Antini. “Acute pseudo-obstruction of the colon (Ogilvie's syndrome): advances in management.” Ann Ital Chir 68, no. 3 (May 1997): 331–36.
       Link to Item
    • Grande, M., P. D’Antini, A. Torquati, A. Barini, and A. M. Farinon. “Role of interleukin 1β, interleukin 6, and tumor necrosis factor in postoperative fever development.” Chirurgia 10, no. 6 (1997): 507–14.
    • Tucci, G., A. Torquati, M. Grande, I. Stroppa, M. Sianesi, and A. M. Farinon. “Major acute inflammatory complications of diverticular disease of the colon: planning of surgical management.” Hepatogastroenterology 43, no. 10 (July 1996): 839–45.
       Link to Item
    • Farinon, A. M., I. Stroppa, G. F. Tucci, A. Torquati, A. Stella, T. Faraggiana, and F. Nardi. “Biological and clinical significance of tissue-CEA content in colorectal adenomas.” Giornale Italiano Di Endoscopia Digestiva 18, no. 3 (1995): 163–70.
    • Farinon, A. M., M. Grande, A. Torquati, and P. D’Antini. “Multivariate analysis for predicting the presence of bacteria in bile in patients with acute cholecystitis.” Eur J Surg 159, no. 10 (October 1993): 531–34.
       Link to Item
    • Torquati, A., M. Grande, and P. D’Antini. “Linear logistic regression analysis. The application of a statistical method to the prediction of operative risk in surgical patients.” Chirurgia 6, no. 10 (1993): 661–62.
    • Grande, M., A. Torquati, and A. M. Farinon. “Wound infection after cholecystectomy. Correlation between bacteria in bile and wound infection after operation on the gallbladder for acute and chronic gallstone disease.” Eur J Surg 158, no. 2 (February 1992): 109–12.
       Link to Item
    • Grande, M., A. Torquati, and E. Zanella. “Evaluation of postoperative fever after abdominal surgery.” Chirurgia 4, no. 1–2 (January 1, 1991): 58–61.
    • Grande, M., A. Torquati, and A. Bellisario. “[Computers in surgery].” G Chir 11, no. 11–12 (November 1990): 607–11.
       Link to Item
    • Farinon, A. M., F. Rulli, M. Muzi, M. Percudani, A. Torquati, A. V. llani, and M. Bosco. “Renal failure after surgical treatment of biliary obstruction.” Chirurgia 2, no. 10 (1989): 534–38.
    • Grande, M., A. Torquati, G. Tucci, A. Neri, and A. M. Farinon. “Prediction of choledocholithiasis in patients with gallbladder stones using a personal computer.” Chirurgia 2, no. 10 (1989): 529–33.

  • Conference Papers

    • Amirian, Haleh, Alfonso Torquati, and Philip Omotosho. “Racial Disparity in 30-Day Outcomes of Metabolic and Bariatric Surgery.” In Obes Surg, 30:1011–20, 2020. https://doi.org/10.1007/s11695-019-04282-9.
       Full Text  Link to Item
    • Zhou, Randal, Jennifer Poirier, Alfonso Torquati, and Philip A. Omotosho. “Meta-Analysis of Conversion Laparoscopic Sleeve Gastrectomy vs Roux-En-Y Gastric Bypass for Failed Gastric Banding.” In Journal of the American College of Surgeons, 225:e57–e57. Elsevier BV, 2017. https://doi.org/10.1016/j.jamcollsurg.2017.07.673.
       Full Text
    • Mor, A., P. Omotosho, and A. Torquati. “GASTRIC BYPASS SIGNIFICANTLY IMPROVES QUALITY OF LIFE IN DIABETIC OBESE SUBJECTS COMPARED TO USUAL MEDICAL CARE AND DIABETES SUPPORT AND EDUCATION.” In Obesity Surgery, 24:1293–1293. SPRINGER, 2014.
       Link to Item
    • Mor, A., P. Shantavasinkul, P. Omotosho, and A. Torquati. “BRANCHED-CHAIN AMINO ACIDS METABOLITES CAN PREDICT TYPE II DIABETES REMISSION 1-YEAR AFTER GASTRIC BYPASS.” In Obesity Surgery, 24:1148–1148. SPRINGER, 2014.
       Link to Item
    • Mor, A., P. Shantavasinkul, P. Omotosho, and A. Torquati. “CHANGES OF CIRCULATING IRISIN AND HIGH SENSITIVITY C-REACTIVE PROTEIN LEVELS IN MORBIDLY OBESE INDIVIDUALS WITH TYPE 2 DIABETES AFTER ROUX-EN-Y GASTRIC BYPASS.” In Obesity Surgery, 24:1293–1293. SPRINGER, 2014.
       Link to Item
    • Salamat, A., A. Gomberawalla, A. Torquati, and R. Lutfi. “Outcome Analysis of Single Incision vs Traditional Multiport Sleeve Gastrectomy: A Matched Cohort Study.” In Obesity Surgery, 23:1136–1136. SPRINGER, 2013.
       Link to Item
    • Corbin, Karen D., Melanie D. Spencer, Kerry-Ann da Costa, Wei Sha, Manal F. Abdelmalek, Yiping Pan, Ayako Suzuki, et al. “Genotype-based hierarchical clustering reveals a panel of polymorphisms in one carbon metabolism that are associated with obesity.” In Faseb Journal, Vol. 26, 2012.
       Link to Item
    • Chen, Jiegen, Zehra Pamuklar, Alfonso Torquati, and Anna Spagnoli. “Zfp423 in Human Adipose Stem Cell.” In Obesity, 19:S73–S73. NATURE PUBLISHING GROUP, 2011.
       Link to Item
    • Chen, Jiegen, Alfonso Torquati, Zehra Pamuklar, and Anna Spagnoli. “Retinol-Binding Protein 4: Impact of Circulating and Tissue Expression Levels on Adiponectin.” In Obesity, 18:S141–S141. NATURE PUBLISHING GROUP, 2010.
       Link to Item
    • Pryor, Aurora, Ning Jiang, Eric J. DeMaria, Dana D. Portenier, Ranjan Sudan, and Alfonso Torquati. “Duet TRSTM Reload Is A Preloaded Absorbable Reinforcement Material On An Endoscopic Stapler That Is Straightforward And Effective For Gastric Pouch Creation.” In Obesity Surgery, 20:984–984. SPRINGER, 2010.
       Link to Item
    • Chen, J. G., A. Spagnoli, Z. Pamuklar, and A. Torquati. “Adipose Expression of Stra6 Gene: Correlation with Insulin Sensitivity.” In Endocrine Reviews, Vol. 31. ENDOCRINE SOC, 2010.
       Link to Item
    • Spagnoli, A., J. Chen, Z. N. Pamuklar, F. Granero-Molto, and A. Torquati. “Uncarboxylated Osteocalcin is an Endocrine Link between the Skeleton and the Glucose Metabolism: Clinical Evidences from Obese and Post Gastric By-pass Patients.” In Journal of Bone and Mineral Research, 23:S125–S125. AMER SOC BONE & MINERAL RES, 2008.
       Link to Item
    • Rothstein, Richard I., Charles Filipi, Karol Caca, Ronald Pruitt, Klaus Mergener, Alfonso Torquati, Gregory Haber, et al. “Endoscopic Full-Thickness Plication for the Treatment of GERD: 12 Month Follow-Up in the Sham-Controlled Trial.” In American Journal of Gastroenterology, 102:S152–S152. Ovid Technologies (Wolters Kluwer Health), 2007. https://doi.org/10.14309/00000434-200709002-00095.
       Full Text
    • Denton, Jerod, Katherine Fallen, Jody Ullery, Brian Cox, Yukiko Ueda, Sreedatta Banerjee, Alfonso Torquati, Naji Abumrad, and Jay Jerome. “Human adipocyte-derived triglyceride activates the unfolded protein response in THP-1 macrophages.” In Faseb Journal, 21:A456–A456. FEDERATION AMER SOC EXP BIOL, 2007.
       Link to Item
    • Rothstein, Richard I., Charles J. Filipi, Karel Caca, Ronald E. Pruitt, Klaus Mergener, Alfonso Torquati, Gregory B. Haber, et al. “Endoscopic Full-Thickness Plication for GERD: 6-Month Follow-Up to a Multi-Center Sham-Controlled Trial.” In Gastrointestinal Endoscopy, 65:AB107–AB107. Elsevier BV, 2007. https://doi.org/10.1016/j.gie.2007.03.016.
       Full Text
    • Youssef, Yassar K., Alfonso Torquati, Kenneth W. Sharp, Nikhilesh Sekhar, and William O. Richards. “Long term quality of life after Heller myotomy: Patient's perspective.” In Gastroenterology, 130:A878–79. W B SAUNDERS CO-ELSEVIER INC, 2006.
       Link to Item
    • Berch, B. R., R. D. Nava, A. Torquati, K. W. Sharp, and W. O. Richards. “Long-term results of laparoscopic myotomy: Follow-up study of fifty patients.” In Gastroenterology, 128:A801–A801. W B SAUNDERS CO, 2005.
       Link to Item
    • Torquati, A., R. Lutfi, N. Abumrad, and W. O. Richards. “Is roux-en-y gastric bypass surgery the most effective treatment for type 2 diabetes mellitus in morbidly obese patients?” In Gastroenterology, 128:A782–A782. W B SAUNDERS CO, 2005.
       Link to Item
    • Lutfi, R. E., A. Torquati, and W. Richards. “Predictors for quality of life improvement after laparoscopic gastric bypass (LGB).” In Journal of the American College of Surgeons, 199:S68–S68. ELSEVIER SCIENCE INC, 2004.
       Link to Item
    • Torquati, A., R. Lutfi, J. Kaiser, and W. Richards. “Laparoscopic fundoplication: Is it worthwile in patients with persistent gastro-esophageal reflux disease (GERD) symptoms despite proton pump inhibitors (PPI) therapy.” In Gastroenterology, 126:A330–31. W B SAUNDERS CO, 2004.
       Link to Item
    • Torquati, A., R. Lutfi, K. Sharp, and W. Richards. “Preoperative risk factors for developing pathologic gastro-esophageal reflux after Heller myotomy.” In Gastroenterology, 126:A774–75. W B SAUNDERS CO, 2004.
       Link to Item
    • Torquati, Alfonso, Hugh L. Houston, and William O. Richards. “Multichannel intraluminal impedance combined with manometry improves the evaluation of functional esophageal motility disorders in patients undergoing antireflux surgery for gastroesophageal reflux disease (GERD).” In Gastroenterology, 124:A810–A810. Elsevier BV, 2003. https://doi.org/10.1016/s0016-5085(03)84084-2.
       Full Text

Some information on this profile has been compiled automatically from Duke databases and external sources. (Our About page explains how this works.) If you see a problem with the information, please write to Scholars@Duke and let us know. We will reply promptly.