Assistant Adjunct Professor, Medicine
School of Medicine
Ph.D., Osaka University Graduate School of Medicine, Japan, 2013
M.D., Yamanashi Medical University, Japan, 2004, Medicine
Phone: (714) 456-5142
University of California, Irvine
The City Tower, Suite #400
101 The City Drive South, City Tower
Orange, CA 92697
CKD/AKI Outcome/Epidemiology, Mineral and Bone Disorder, Anemia & Iron Deficiency, Clinical Trials
Dr. Obi studied medicine at Yamanashi Medical University in Japan and also obtained his PhD degree from Osaka University Graduate School of Medicine, Japan. He is a Fellow of the Japanese Society of Internal Medicine (FJSIM), a Japanese-board certified nephrologist/transplant physician, and a Fellow of the American Society of Nephrology (FASN). Since he joined Dr. Kalantar's research team at UC Irvine in September 2014, he has published >15 papers with his name under the first author in several high-impact, peer-reviewed journals. Dr. Obi conducts research studies centered on residual kidney function and disorders of bone and mineral metabolism in dialysis patients. He also participates in prospective translational studies using urine samples from non-dialysis dependent CKD patients and kidney transplant recipients.
1. Obi Y, Streja E, Rhee CM, et al. Incremental Hemodialysis, Residual Kidney Function, and Mortality Risk in Incident Dialysis Patients: A Cohort Study. Am J Kidney Dis 2016; 68: 256-265.
2. Mathew A, Obi Y (Co-first), Rhee CM, et al. Treatment frequency and mortality among incident hemodialysis patients in the United States comparing incremental with standard and more frequent dialysis. Kidney international 2016; 90: 1071-1079.
3. Obi Y, Rhee CM, Mathew AT, et al. Residual Kidney Function Decline and Mortality in Incident Hemodialysis Patients. Journal of the American Society of Nephrology 2016; in press.
4. Obi Y, Mehrotra R, Rivara MB, et al. Hidden Hypercalcemia and Mortality Risk in Incident Hemodialysis Patients. J Clin Endocrinol Metab 2016; 101: 2440-2449.
5. Obi Y, Nguyen DV, Streja E, et al. Development and Validation of a Novel Laboratory-Specific Correction Equation for Total Serum Calcium and its Association with Mortality among Hemodialysis Patients. Journal of bone and mineral research 2016; in press.
Harold Simmons Center for Kidney Disease Research and Epidemiology, UC Irvine