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• Achalasia

  Achalasia

  Achalasia is a disease that makes it hard to eat and drink normally. It affects your esophagus, which is the swallowing tube that connects the back of your throat to your stomach.
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• Bariatric Surgery
• Cholecystectomy

  Cholecystectomy

  A cholecystectomy is surgery to remove your gallbladder. You may have a cholecystectomy as an outpatient or as part of your stay in a hospital. The way the surgery is done may vary depending on your condition and your healthcare provider's practices.
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• Foregut Surgery
• Fundoplication
• Gallbladder
• GERD (Gastroesophageal Reflux Disease)

  Gastroesophageal Reflux Disease (GERD)/Heartburn

  GERD (gastroesophageal reflux disease) is a digestive disorder. It is caused when gastric acid from your stomach flows back up into your food pipe or esophagus.
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• Heller Myotomy
• Hernia Repair (Inguinal Hernia)

  Inguinal Hernia

  An inguinal hernia is when part of your intestine pushes through a weak spot in your lower belly (abdominal) wall. This area is called the groin. The hernia creates a lump in your groin. Over time, the hernia may get bigger.
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• Hernia Repair (Umbilical Hernia)
• Hernia Repair (Ventral Hernia)
• Hiatal Hernia

  Hiatal Hernia

  In a hiatal hernia, part of your stomach pushes up into an opening (the hiatus) in your diaphragm. The diaphragm is the muscle between your stomach and your chest.
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• Lap Band adjustment and care
• Laparoscopic Hernia Repair
• Minimally Invasive Surgery

  Methods of Surgery

  An "open" surgery means cutting the skin and tissues so that the surgeon has a full view of the structures or organs involved. Minimally invasive surgery is a relatively new approach that allows the patient to recuperate faster with less pain. Not all conditions are suitable for this type of surgery.
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• Revisional Bariatric Surgery
• Robotic Surgery
• Roux en Y Gastric Bypass Surgery

  Roux-en-Y Gastric Bypass Weight-Loss Surgery

  Roux-en-Y gastric bypass (RYGB) is a type of weight-loss surgery. Weight-loss surgery is also called bariatric surgery. It’s often done as a laparoscopic surgery, with small incisions in the abdomen.
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• Vertical sleeve gastrectomy

  Gastric Sleeve Surgery

  Gastric sleeve surgery is a type of weight-loss surgery. This surgery restricts your food intake, which leads to weight loss. You may lose from 50 to 90 pounds.
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• The mechanism of cancer risk reduction of bariatric surgery.
• The metabolic effects of bariatric surgery.

1. Dan Q, Sanchez R, Delgado C, Wepsic HT, Morgan K, Chen Y, et al. Non-immunogenic murine hepatocellular carcinoma Hepa1-6 cells expressing the membrane form of macrophage colony stimulating factor are rejected in vivo and lead to CD8+ T-cell immunity against the parental tumor. Molecular therapy : the journal of the American Society of Gene Therapy. 2001;4(5):427-37.
2. Williams CC, Trinh H, Tran TV, Dan Q, Sanchez R, Delgado C, et al. Membrane macrophage colony-stimulating factor on MADB106 breast cancer cells does not activate cytotoxic macrophages but immunizes rats against breast cancer. Molecular therapy : the journal of the American Society of Gene Therapy. 2001;3(2):216-24.
3. Chen Y, Douglass T, Jeffes EW, Xu Q, Williams CC, Arpajirakul N, et al. Living T9 glioma cells expressing membrane macrophage colony-stimulating factor produce immediate tumor destruction by polymorphonuclear leukocytes and macrophages via a "paraptosis"-induced pathway that promotes systemic immunity against intracranial T9 gliomas. Blood. 2002;100(4):1373-80.
4. Sanchez R, Williams C, Daza JL, Dan Q, Xu Q, Chen Y, et al. T9 glioma cells expressing membrane-macrophage colony stimulating factor produce CD4+ T cell-associated protective immunity against T9 intracranial gliomas and systemic immunity against different syngeneic gliomas. Cellular immunology. 2002;215(1):1-11.
5. Jadus MR, Chen Y, Boldaji MT, Delgado C, Sanchez R, Douglass T, et al. Human U251MG glioma cells expressing the membrane form of macrophage colony-stimulating factor (mM-CSF) are killed by human monocytes in vitro and are rejected within immunodeficient mice via paraptosis that is associated with increased expression of three different heat shock proteins. Cancer gene therapy. 2003;10(5):411-20.
6. Chen Y, Shi G, Xia W, Kong C, Zhao S, Gaw AF, et al. Identification of hypoxia-regulated proteins in head and neck cancer by proteomic and tissue array profiling. Cancer research. 2004;64(20):7302-10.
7. Chen Y, Feldman DE, Deng C, Brown JA, De Giacomo AF, Gaw AF, et al. Identification of mitogen-activated protein kinase signaling pathways that confer resistance to endoplasmic reticulum stress in Saccharomyces cerevisiae. Molecular cancer research : MCR. 2005;3(12):669-77.
8. Le QT, Kong C, Lavori PW, O'Byrne K, Erler JT, Huang X, et al. Expression and prognostic significance of a panel of tissue hypoxia markers in head-and-neck squamous cell carcinomas. International journal of radiation oncology, biology, physics. 2007;69(1):167-75.
9. Chen Y, Cairns R, Papandreou I, Koong A, Denko NC. Oxygen consumption can regulate the growth of tumors, a new perspective on the Warburg effect. PloS one. 2009;4(9):e7033.
10. Jatoi I, Benson JR, Liau SS, Chen Y, Cisco RM, Norton JA, et al. The role of surgery in cancer prevention. Current problems in surgery. 2010;47(10):750-830.
11. Chen Y, Kingham K, Ford JM, Rosing J, Van Dam J, Jeffrey RB, et al. A prospective study of total gastrectomy for CDH1-positive hereditary diffuse gastric cancer. Annals of surgical oncology. 2011;18(9):2594-8.
12. Norton JA, Harris EJ, Chen Y, Visser BC, Poultsides GA, Kunz PC, et al. Pancreatic endocrine tumors with major vascular abutment, involvement, or encasement and indication for resection. Archives of surgery. 2011;146(6):724-32.
13. Poultsides GA, Huang LC, Chen Y, Visser BC, Pai RK, Jeffrey RB, et al. Pancreatic neuroendocrine tumors: radiographic calcifications correlate with grade and metastasis. Annals of surgical oncology. 2012;19(7):2295-303.
14. Chen Y, Zak Y, Hernandez-Boussard T, Park W, Visser BC. The epidemiology of idiopathic acute pancreatitis, analysis of the nationwide inpatient sample from 1998 to 2007. Pancreas. 2013;42(1):1-5.

• Arnold P. Gold Foundation's Humanism and Excellence in Teaching Award

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