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Yijun Chen, MD


Yijun Chen, MD

UCLA Physician Yijun Chen, MD specializes in General Surgery.
General Surgery
Language Spoken
English, Chinese
Hospital Affiliation
Ronald Reagan UCLA Medical Center
UCLA Medical Center, Santa Monica
State License Number
(310) 825-7163
Fax Number
(310) 267-4632

UCLA General Surgery Suite and Bariatric Surgery Program
200 UCLA Medical Plaza, Suite 214
Los Angeles, CA 90095

Surgery, American Board of Surgery, 2014
Minimally Invasive & Bariatric Surgery, Duke University Medical Center, 2013 - 2014
Surgery, Stanford University Medical Center, 2008 - 2013
Surgery, Stanford University Medical Center, 2007 - 2008
, The Fourth Military Medical University, 1995
Achalasia, Bariatric Surgery, Cholecystectomy, Foregut Surgery, Fundoplication, Gallbladder, GERD (Gastroesophageal Reflux Disease), Heller Myotomy, Hernia Repair (Inguinal Hernia), Hernia Repair (Umbilical Hernia), Hernia Repair (Ventral Hernia), Hiatal Hernia, Lap Band adjustment and care, Laparoscopic Hernia Repair, Minimally Invasive Surgery, Revisional Bariatric Surgery, Robotic Surgery, Roux en Y Gastric Bypass Surgery, Vertical sleeve gastrectomy
Research Interest
Dr. Chen’s research interests include the treatment of diabetes and non-alcoholic fatty liver disease with weight loss surgery.
Awards & Recognition
Arnold P. Gold Foundation's Humanism and Excellence in Teaching Award
  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.
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