Yoshitsugu Obi, MD

Yoshitsugu Obi, MD

Assistant Professor

Department:
SOM-Medicine-NEPHROL

Email:
yobi@umc.edu

Work Phone:
(601) 815-2677

Biography

Dr. Obi joined UMMC in 2021 as an Assistant Professor for Nephrology. He obtained his medical degree from Yamanashi Medical University in 2004. He then pursued his post-graduate training at Rinku General Medical Center in 2007. He completed his Ph.D. at Osaka University Graduate School of Medicine in 2013. He completed his Nephrology Fellowship at the University of Tennessee Health Science Center in 2021.

Education

Osaka University Graduate School of Medicine, PhD, Medicine2013
Yamanashi Medical College, Japan, BA, Medicine2004
University of Tennessee Health Science Center, Nephrology

Specialty Certification Licensure

Certification, ECFMG Certification, Educational Commission for Foreign Medical Graduates03/2019 - Present
DEA
Licensure, MD Limited Institutional license in the state of Mississippi, MISSISSIPPI STATE BOARD OF MEDICAL LICENSURE04/2012 - Present
NPI

Current Positions

Assistant Professor, School of Medicine09/2021 - Present
The University of Mississippi Medical Center
Jackson, Mississippi 39216

Academic Appointments or Other Previous Appointments

Assistant Adjunct Professor, University of California, Irvine, School of Medicine06/2016 - 06/2019

Sponsored Program Funding

Intramural, The Epidemiology and Pathophysiology of Kidney Disease in HFpEF with Obesity, National Institute of General Medical Sciences09/2023 - Present
Intramural, Empagliflozin in End-stage Kidney Disease, National Institute of General Medical Sciences03/2023 - Present
Extramural, Dialysis Blood Pressure Remote Patient Monitoring, The Health Resources and Services Administration (HRSA)02/2022 - Present
Extramural, Food Delivery, Remote Monitoring, and Coaching-Enhanced EDucation for Optimized Diabetes Management (FREEDOM), National Institute on Minority Health and Health Disparities09/2021 - 06/2026
Extramural, Renal and cardiovascular outcomes associated with real-life patiromer use in a large national administrative cohort of veterans with CKD, Relypsa07/2020 - 06/2021

Publications

Letter

Yamada T, Puttarajappa CM, Kovesdy CP, Obi Y, A Specific Target BP in Chronic Kidney Disease Remains Unclear. Journal of the American Society of Nephrology : JASN, 2023 Jun 1;34(6):1121-11222023
Obi Y, Hamano T, The change history of the INDEPENDENT Study in the ClinicalTrials.gov database. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2014 Jan;63(1):1642014
Obi Y, Hama H, Suzuki Y, Isaka Y, Moriyama T, Implausible similarities in patient characteristics between two randomized controlled studies: a coincidence is unlikely. Kidney international, 2012 Jul;82(1):115-6; author reply 116-72012

Randomized Controlled Trial

Hosojima M, Kabasawa H, Kaseda R, Ishikawa-Tanaka T, Obi Y, Murayama T, Kuwahara S, Suzuki Y, Narita I, Saito A, Efficacy of Low-Protein Rice for Dietary Protein Restriction in CKD Patients: A Multicenter, Randomized, Controlled Study. Kidney360, 2022 Nov 24;3(11):1861-18702022

Journal Article

Obi Y, Thomas F, Dashputre AA, Goedecke P, Kovesdy CP, Long-term Patiromer Use and Outcomes Among US Veterans With Hyperkalemia and CKD: A Propensity-Matched Cohort Study. Kidney medicine, 2024 Jan;6(1):1007572024
Siddiqui R, Obi Y, Dossabhoy NR, Shafi T, Is There a Role for SGLT2 Inhibitors in Patients with End-Stage Kidney Disease? Current hypertension reports, 2024 Dec;26(12):463-4742024
Obi Y, Raimann JG, Kalantar-Zadeh K, Murea M, Residual Kidney Function in Hemodialysis: Its Importance and Contribution to Improved Patient Outcomes. Toxins, 2024 Jun 28;16(7)2024
Obi Y, Xu A, Wilson JA, Ephraim PL, Weiner DE, Scialla JJ, Jaar BG, Boulware LE, Goldstein B, Shafi T, Sudden Cardiac Death Reporting in US Patients on Dialysis: Comparison of United States Renal Data System and National Death Index Data. Clinical journal of the American Society of Nephrology : CJASN, 2024 Dec 1;19(12):1613-16212024
Clemmer JS, Yen TE, Obi Y, Modeling the renoprotective mechanisms of SGLT2 inhibition in hypertensive chronic kidney disease. Physiological reports, 2023 Nov;11(21):e158362023
Okazaki M, Obi Y, Shafi T, Rhee CM, Kovesdy CP, Kalantar-Zadeh K, Residual Kidney Function and Cause-Specific Mortality Among Incident Hemodialysis Patients. Kidney international reports, 2023 Oct;8(10):1989-20002023
Clemmer JS, Shafi T, Obi Y, Physiological Mechanisms of Hypertension and Cardiovascular Disease in End-Stage Kidney Disease. Current hypertension reports, 2022 Oct;24(10):413-4242022
Arif Y, Wenziger C, Hsiung JT, Edward A, Lau WL, Hanna RM, Lee Y, Obi Y, Kovesdy CP, Kalantar-Zadeh K, Streja E, Association of serum potassium with decline in residual kidney function in incident hemodialysis patients. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2022 Oct 19;37(11):2234-22402022
Ni Y, Simpson CL, Davis RL, Szpiro AA, Karr CJ, Kovesdy CP, Hjorten RC, Tylavsky FA, Bush NR, LeWinn KZ, Winkler CA, Kopp JB, Obi Y, Associations between APOL1 genetic variants and blood pressure in African American mothers and children from a U.S. pregnancy cohort: Modification by air pollution exposures. Environmental research, 2022 Sep;212(Pt A):1131862022
Tsujita M, Doi Y, Obi Y, Hamano T, Tomosugi T, Futamura K, Okada M, Hiramitsu T, Goto N, Isaka Y, Takeda A, Narumi S, Watarai Y, Cholecalciferol Supplementation Attenuates Bone Loss in Incident Kidney Transplant Recipients: A Prespecified Secondary Endpoint Analysis of a Randomized Controlled Trial. Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research, 2022 Feb;37(2):303-3112022
Doi Y, Tsujita M, Hamano T, Obi Y , Namba Hamano T, Tomosugi T, Futamura K, Okada M, Hiramitsu T,
Goto N, Nishiyama A, Takeda A, Narumi S, Watarai Y, Isaka Y. The effect of cholecalciferol supplementation on allograft function in incident kidney transplant recipients: A randomized controlled study. Am J Transplant. 2021;21(9):3043 3054.
2021
Obi Y, Ichimaru N, Sakaguchi Y, Iwadoh K, Ishii D, Sakai K, Iwami D, Harada H, Sumida K, Sekine A, Masutani K, Akutsu N, Inoue T, Nishihira M, Yoneda T, Ito S, Araki M, Kaimori JY, Yoshida K, Satoh S, Ubara Y, Isaka Y, Yoshida K, Tsubakihara Y, Takahara S, Hamano T, CANDLE-KIT Trial Investigators, Correcting anemia and native vitamin D supplementation in kidney transplant recipients: a multicenter, 2 × 2 factorial, open-label, randomized clinical trial. Transplant international : official journal of the European Society for Organ Transplantation, 2021 Jul;34(7):1212-12252021
Dashputre AA, Potukuchi PK, Sumida K, Kar S, Obi Y, Thomas F, Molnar MZ, Streja E, Kalantar-Zadeh K, Kovesdy CP, Predialysis Potassium Variability and Postdialysis Mortality in Patients With Advanced CKD. Kidney international reports, 2021 Feb;6(2):366-3802021
Doi Y, Tsujita M, Hamano T, Obi Y, Namba-Hamano T, Tomosugi T, Futamura K, Okada M, Hiramitsu T, Goto N, Nishiyama A, Takeda A, Narumi S, Watarai Y, Isaka Y, The effect of cholecalciferol supplementation on allograft function in incident kidney transplant recipients: A randomized controlled study. American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons, 2021 Sep;21(9):3043-30542021
Sumida K, Dashputre AA, Potukuchi PK, Thomas F, Obi Y, Molnar MZ, Gatwood JD, Streja E, Kalantar-Zadeh K, Kovesdy CP, Laxative Use and Risk of Dyskalemia in Patients with Advanced CKD Transitioning to Dialysis. Journal of the American Society of Nephrology : JASN, 2021 Apr;32(4):950-9592021
Sumida K, Dashputre AA, Potukuchi PK, Thomas F, Obi Y, Molnar MZ, Gatwood JD, Streja E, Kalantar-Zadeh K, Kovesdy CP, Laxative use in patients with advanced chronic kidney disease transitioning to dialysis. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2021 Nov 9;36(11):2018-20262021
Kimura H, Sy J, Okuda Y, Wenziger C, Hanna R, Obi Y, Rhee CM, Kovesdy CP, Kalantar-Zadeh K, Streja E, A faster decline of residual kidney function and erythropoietin stimulating agent hyporesponsiveness in incident hemodialysis patients. Hemodialysis international. International Symposium on Home Hemodialysis, 2021 Jan;25(1):60-702021
Sumida K, Dashputre AA, Potukuchi PK, Thomas F, Obi Y, Molnar MZ, Gatwood JD, Streja E, Kalantar-Zadeh K, Kovesdy CP, Laxative Use and Change in Estimated Glomerular Filtration Rate in Patients With Advanced Chronic Kidney Disease. Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation, 2021 Jul;31(4):361-3692021
Dashputre AA, Gatwood J, Sumida K, Thomas F, Akbilgic O, Potukuchi PK, Obi Y, Molnar MZ, Streja E, Kalantar-Zadeh K, Kovesdy CP, Association of dyskalemias with short-term health care utilization in patients with advanced CKD. Journal of managed care & specialty pharmacy, 2021 Oct;27(10):1403-14152021
Obi Y, Yamaguchi S, Hamano T, Sakaguchi Y, Shimomura A, Namba-Hamano T, Mikami S, Nishi O, Tanaka M, Kamoto A, Obi Y, Tomosugi N, Tsubakihara Y, Isaka Y, Effect of cholecalciferol on serum hepcidin and parameters of anaemia and CKD-MBD among haemodialysis patients: a randomized clinical trial. Scientific reports, 2020 Sep 23;10(1):155002020
Doi Y, Hamano T, Ichimaru N, Tomida K, Obi Y, Fujii N, Yamaguchi S, Oka T, Sakaguchi Y, Matsui I, Kaimori JY, Abe T, Imamura R, Takahara S, Tsubakihara Y, Nonomura N, Isaka Y, Serum phosphate levels modify the impact of parathyroid hormone levels on renal outcomes in kidney transplant recipients. Scientific reports, 2020 Aug 13;10(1):137662020
Okuda Y, Streja E, Rhee CM, Tantisattamo E, Reddy U, Laster M, Tang Y, Rajpoot D, Molnar MZ, Ichii H, Obi Y, Kalantar-Zadeh K, Association of age with risk of first and subsequent allograft failure and mortality among young kidney transplant recipients in the USA - a retrospective cohort study. Transplant international : official journal of the European Society for Organ Transplantation, 2020 Nov;33(11):1503-15152020
You AS, Kalantar-Zadeh K, Obi Y, Novoa A, Peralta RA, Streja E, Nakata T, Kovesdy CP, Nguyen DV, Rhee CM, Residual Urine Output and Mortality in a Prospective Hemodialysis Cohort. Kidney international reports, 2020 May;5(5):643-6532020
Lertdumrongluk P, Tantisattamo E, Obi Y, Nguyen HA, Kovesdy CP, Rhee CM, Kalantar-Zadeh K, Streja E, Estimated glomerular filtration rate at dialysis initiation and subsequent decline in residual kidney function among incident hemodialysis patients. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2020 Oct 1;35(10):1786-17932020
Okuda Y, Soohoo M, Ishikura K, Tang Y, Obi Y, Laster M, Rhee CM, Streja E, Kalantar-Zadeh K, Primary causes of kidney disease and mortality in dialysis-dependent children. Pediatric nephrology (Berlin, Germany), 2020 May;35(5):851-8602020
Lee YJ, Okuda Y, Sy J, Lee YK, Obi Y, Cho S, Chen JLT, Jin A, Rhee CM, Kalantar-Zadeh K, Streja E, Ultrafiltration Rate, Residual Kidney Function, and Survival Among Patients Treated With Reduced-Frequency Hemodialysis. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2020 Mar;75(3):342-3502020
Lee YJ, Okuda Y, Sy J, Obi Y, Kang DH, Nguyen S, Hsiung JT, Park C, Rhee CM, Kovesdy CP, Streja E, Kalantar-Zadeh K, Association of Mineral Bone Disorder With Decline in Residual Kidney Function in Incident Hemodialysis Patients. Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research, 2020 Feb;35(2):317-3252020
Ko GJ, Rhee CM, Obi Y, Chang TI, Soohoo M, Kim TW, Kovesdy CP, Streja E, Kalantar-Zadeh K, Vascular access placement and mortality in elderly incident hemodialysis patients. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2020 Mar 1;35(3):503-5112020
Wang AY, Akizawa T, Bavanandan S, Hamano T, Liew A, Lu KC, Lumlertgul D, Oh KH, Zhao MH, Ka-Shun Fung S, Obi Y, Sumida K, Choong LHL, Goh BL, Hao CM, Kwon YJ, Tarng DC, Zuo L, Wheeler DC, Tsukamoto Y, Fukagawa M, 2017 Kidney Disease: Improving Global Outcomes (KDIGO) Chronic Kidney Disease-Mineral and Bone Disorder (CKD-MBD) Guideline Update Implementation: Asia Summit Conference Report. Kidney international reports, 2019 Nov;4(11):1523-15372019
Akbilgic O, Obi Y, Potukuchi PK, Karabayir I, Nguyen DV, Soohoo M, Streja E, Molnar MZ, Rhee CM, Kalantar-Zadeh K, Kovesdy CP, Machine Learning to Identify Dialysis Patients at High Death Risk. Kidney international reports, 2019 Sep;4(9):1219-12292019
Okuda Y, Obi Y, Streja E, Laster M, Rhee C, Langman CB, Jernigan SM, Salusky IB, Tentori F, Schreiber MJ, Brunelli SM, Kalantar-Zadeh K, Serum albumin and hospitalization among pediatric patients with end-stage renal disease who started dialysis therapy. Pediatric nephrology (Berlin, Germany), 2019 Oct;34(10):1799-18092019
Sakaguchi Y, Hamano T, Obi Y, Monden C, Oka T, Yamaguchi S, Matsui I, Hashimoto N, Matsumoto A, Shimada K, Takabatake Y, Takahashi A, Kaimori JY, Moriyama T, Yamamoto R, Horio M, Yamamoto K, Sugimoto K, Rakugi H, Isaka Y, A Randomized Trial of Magnesium Oxide and Oral Carbon Adsorbent for Coronary Artery Calcification in Predialysis CKD. Journal of the American Society of Nephrology : JASN, 2019 Jun;30(6):1073-10852019
Soohoo M, Moradi H, Obi Y, Rhee CM, Gosmanova EO, Molnar MZ, Kashyap ML, Gillen DL, Kovesdy CP, Kalantar-Zadeh K, Streja E, Statin Therapy Before Transition to End-Stage Renal Disease With Posttransition Outcomes. Journal of the American Heart Association, 2019 Mar 19;8(6):e0118692019
Kleine CE, Obi Y, Streja E, Hsiung JT, Park C, Holick MF, Kalantar-Zadeh K, Seasonal variation of serum 25-hydroxyvitamin D and parameters of bone and mineral disorder in dialysis patients. Bone, 2019 Jul;124:158-1652019
Okuda Y, Soohoo M, Tang Y, Obi Y, Laster M, Rhee CM, Streja E, Kalantar-Zadeh K, Estimated GFR at Dialysis Initiation and Mortality in Children and Adolescents. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2019 Jun;73(6):797-8052019
Ko GJ, Obi Y, Chang TI, Soohoo M, Eriguchi R, Choi SJ, Gillen DL, Kovesdy CP, Streja E, Kalantar-Zadeh K, Rhee CM, Factors Associated With Withdrawal From Dialysis Therapy in Incident Hemodialysis Patients Aged 80 Years or Older. Journal of the American Medical Directors Association, 2019 Jun;20(6):743-750.e12019
Suzuki A, Obi Y, Hayashi T, Kotani N, Uemura Y, Imai E, Makino H, Hishida A, Visit-to-visit variability in estimated glomerular filtration rate predicts hospitalization and death due to cardiovascular events. Clinical and experimental nephrology, 2019 May;23(5):661-6682019
Hsiung JT, Kleine CE, Naderi N, Park C, Soohoo M, Moradi H, Rhee CM, Obi Y, Kopple JD, Kovesdy CP, Kalantar-Zadeh K, Streja E, Association of Pre-End-Stage Renal Disease Serum Albumin With Post-End-Stage Renal Disease Outcomes Among Patients Transitioning to Dialysis. Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation, 2019 Jul;29(4):310-3212019
Soohoo M, Molnar MZ, Ujszaszi A, Obi Y, Kovesdy CP, Kalantar-Zadeh K, Streja E, Red blood cell distribution width and mortality and hospitalizations in peritoneal dialysis patients. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2019 Dec 1;34(12):2111-21182019
Oka T, Hamano T, Sakaguchi Y, Yamaguchi S, Kubota K, Senda M, Yonemoto S, Shimada K, Matsumoto A, Hashimoto N, Mori D, Monden C, Takahashi A, Obi Y, Yamamoto R, Takabatake Y, Kaimori JY, Moriyama T, Horio M, Matsui I, Isaka Y, Proteinuria-associated renal magnesium wasting leads to hypomagnesemia: a common electrolyte abnormality in chronic kidney disease. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2019 Jul 1;34(7):1154-11622019
Ui T, Obi Y, Shimomura A, Lefor AK, Fazl Alizadeh R, Said H, Nguyen NT, Stamos MJ, Kalantar-Zadeh K, Sata N, Ichii H, High and low estimated glomerular filtration rates are associated with adverse outcomes in patients undergoing surgery for gastrointestinal malignancies. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2019 May 1;34(5):810-8182019
Obi Y, Nguyen DV, Zhou H, Soohoo M, Zhang L, Chen Y, Streja E, Sim JJ, Molnar MZ, Rhee CM, Abbott KC, Jacobsen SJ, Kovesdy CP, Kalantar-Zadeh K, Development and Validation of Prediction Scores for Early Mortality at Transition to Dialysis. Mayo Clinic proceedings, 2018 Sep;93(9):1224-12352018
Rhee CM, Obi Y, Mathew AT, Kalantar-Zadeh K, Precision Medicine in the Transition to Dialysis and Personalized Renal Replacement Therapy. Seminars in nephrology, 2018 Jul;38(4):325-3352018
Soohoo M, Streja E, Obi Y, Rhee CM, Gillen DL, Sumida K, Nguyen DV, Kovesdy CP, Kalantar-Zadeh K, Predialysis Kidney Function and Its Rate of Decline Predict Mortality and Hospitalizations After Starting Dialysis. Mayo Clinic proceedings, 2018 Aug;93(8):1074-10852018
Streja E, Kovesdy CP, Soohoo M, Obi Y, Rhee CM, Park C, Chen JLT, Nakata T, Nguyen DV, Amin AN, Jacobsen SJ, Sim JJ, Kalantar-Zadeh K, Dialysis Provider and Outcomes among United States Veterans Who Transition to Dialysis. Clinical journal of the American Society of Nephrology : CJASN, 2018 Jul 6;13(7):1055-10622018
Mathew AT, Obi Y, Rhee CM, Chou JA, Kalantar-Zadeh K, Incremental dialysis for preserving residual kidney function-Does one size fit all when initiating dialysis? Seminars in dialysis, 2018 Jul;31(4):343-3522018
Wang M, Obi Y, Streja E, Rhee CM, Chen J, Hao C, Kovesdy CP, Kalantar-Zadeh K, Impact of residual kidney function on hemodialysis adequacy and patient survival. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2018 Oct 1;33(10):1823-18312018
Obi Y, Park C, Soohoo M, Sumida K, Hamano T, Rhee CM, Kovesdy CP, Kalantar-Zadeh K, Streja E, Association of Pre-ESRD Serum Calcium With Post-ESRD Mortality Among Incident ESRD Patients: A Cohort Study. Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research, 2018 Jun;33(6):1027-10362018
Rivara MB, Ravel V, Streja E, Obi Y, Soohoo M, Cheung AK, Himmelfarb J, Kalantar-Zadeh K, Mehrotra R, Weekly Standard Kt/V(urea) and Clinical Outcomes in Home and In-Center Hemodialysis. Clinical journal of the American Society of Nephrology : CJASN, 2018 Mar 7;13(3):445-4552018
Obi Y, Streja E, Mehrotra R, Rivara MB, Rhee CM, Soohoo M, Gillen DL, Lau WL, Kovesdy CP, Kalantar-Zadeh K, Impact of Obesity on Modality Longevity, Residual Kidney Function, Peritonitis, and Survival Among Incident Peritoneal Dialysis Patients. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2018 Jun;71(6):802-8132018
Chou JA, Streja E, Nguyen DV, Rhee CM, Obi Y, Inrig JK, Amin A, Kovesdy CP, Sim JJ, Kalantar-Zadeh K, Intradialytic hypotension, blood pressure changes and mortality risk in incident hemodialysis patients. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2018 Jan 1;33(1):149-1592018
Obi Y, Kalantar-Zadeh K, Streja E, Daugirdas JT, Prediction equation for calculating residual kidney urea clearance using urine collections for different hemodialysis treatment frequencies and interdialytic intervals. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2018 Mar 1;33(3):530-5392018
Sumida K, Molnar MZ, Potukuchi PK, Thomas F, Lu JL, Obi Y, Rhee CM, Streja E, Yamagata K, Kalantar-Zadeh K, Kovesdy CP, Prognostic significance of pre-end-stage renal disease serum alkaline phosphatase for post-end-stage renal disease mortality in late-stage chronic kidney disease patients transitioning to dialysis. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2018 Feb 1;33(2):264-2732018
Ko GJ, Obi Y, Tortorici AR, Kalantar-Zadeh K, Dietary protein intake and chronic kidney disease. Current opinion in clinical nutrition and metabolic care, 2017 Jan;20(1):77-852017
Hosojima M, Shimada H, Obi Y, Kuwahara S, Kaseda R, Kabasawa H, Kondo H, Fujii M, Watanabe R, Suzuki Y, Kadowaki M, Miyazaki S, Saito A, A Randomized, Double-Blind, Crossover Pilot Trial of Rice Endosperm Protein Supplementation in Maintenance Hemodialysis Patients. Scientific reports, 2017 Dec 21;7(1):180032017
Shimomura A, Obi Y, Fazl Alizadeh R, Li S, Nguyen NT, Stamos MJ, Kalantar-Zadeh K, Ichii H, Association of pre-operative estimated GFR on post-operative pulmonary complications in laparoscopic surgeries. Scientific reports, 2017 Jul 26;7(1):65042017
Suematsu Y, Obi Y, Shimomura A, Alizadeh RF, Vaziri ND, Nguyen NT, Stamos MJ, Ichii H, Risk of Postoperative Venous Thromboembolism Among Pregnant Women. The American journal of cardiology, 2017 Aug 1;120(3):479-4832017
Eriguchi R, Obi Y, Streja E, Tortorici AR, Rhee CM, Soohoo M, Kim T, Kovesdy CP, Kalantar-Zadeh K, Longitudinal Associations among Renal Urea Clearance-Corrected Normalized Protein Catabolic Rate, Serum Albumin, and Mortality in Patients on Hemodialysis. Clinical journal of the American Society of Nephrology : CJASN, 2017 Jul 7;12(7):1109-11172017
Wang M, Obi Y, Streja E, Rhee CM, Lau WL, Chen J, Hao C, Hamano T, Kovesdy CP, Kalantar-Zadeh K, Association of Parameters of Mineral Bone Disorder with Mortality in Patients on Hemodialysis according to Level of Residual Kidney Function. Clinical journal of the American Society of Nephrology : CJASN, 2017 Jul 7;12(7):1118-11272017
Kalantar-Zadeh K, Crowley ST, Beddhu S, Chen JLT, Daugirdas JT, Goldfarb DS, Jin A, Kovesdy CP, Leehey DJ, Moradi H, Navaneethan SD, Norris KC, Obi Y, O'Hare A, Shafi T, Streja E, Unruh ML, Vachharajani TJ, Weisbord S, Rhee CM, Renal Replacement Therapy and Incremental Hemodialysis for Veterans with Advanced Chronic Kidney Disease. Seminars in dialysis, 2017 May;30(3):251-2612017
Obi Y, Kalantar-Zadeh K, Streja E, Rhee CM, Reddy UG, Soohoo M, Wang Y, Ravel V, You AS, Jing J, Sim JJ, Nguyen DV, Gillen DL, Saran R, Robinson B, Kovesdy CP, Seasonal variations in transition, mortality and kidney transplantation among patients with end-stage renal disease in the USA. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2017 May 1;32(5):9072017
Streja E, Goldstein L, Soohoo M, Obi Y, Kalantar-Zadeh K, Rhee CM, Modeling longitudinal data and its impact on survival in observational nephrology studies: tools and considerations. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2017 Apr 1;32(suppl_2):ii77-ii832017
Obi Y, Chou J, Kalantar-Zadeh K, Introduction to the Critical Balance - Residual Kidney Function and Incremental Transition to Dialysis. Seminars in dialysis, 2017 May;30(3):232-2342017
Ghahremani-Ghajar M, Rojas-Bautista V, Lau WL, Pahl M, Hernandez M, Jin A, Reddy U, Chou J, Obi Y, Kalantar-Zadeh K, Rhee CM, Incremental Hemodialysis: The University of California Irvine Experience. Seminars in dialysis, 2017 May;30(3):262-2692017
Moghadamyeghaneh Z, Hanna MH, Fazlalizadeh R, Obi Y, Foster CE, Stamos MJ, Ichii H, A Nationwide Analysis of Kidney Autotransplantation. The American surgeon, 2017 Feb 1;83(2):162-1692017
Obi Y, Kalantar-Zadeh K, Streja E, Rhee CM, Reddy UG, Soohoo M, Wang Y, Ravel V, You AS, Jing J, Sim JJ, Nguyen DV, Gillen DL, Saran R, Robinson B, Kovesdy CP, Seasonal variations in transition, mortality and kidney transplantation among patients with end-stage renal disease in the USA. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2017 Apr 1;32(suppl_2):ii99-ii1052017
Kalantar-Zadeh K, Kovesdy CP, Streja E, Rhee CM, Soohoo M, Chen JLT, Molnar MZ, Obi Y, Gillen D, Nguyen DV, Norris KC, Sim JJ, Jacobsen SS, Transition of care from pre-dialysis prelude to renal replacement therapy: the blueprints of emerging research in advanced chronic kidney disease. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2017 Apr 1;32(suppl_2):ii91-ii982017
Kim T, Rhee CM, Streja E, Obi Y, Brunelli SM, Kovesdy CP, Kalantar-Zadeh K, Longitudinal trends in serum ferritin levels and associated factors in a national incident hemodialysis cohort. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2017 Feb 1;32(2):370-3772017
Obi Y, Hamano T, Wada A, Tsubakihara Y, Committee of Renal Data Registry of the Japanese Society for Dialysis Therapy, Vitamin D Receptor Activator Use and Cause-specific Death among dialysis Patients: a Nationwide Cohort Study using Coarsened Exact Matching. Scientific reports, 2017 Jan 31;7:411702017
Rhee CM, Ghahremani-Ghajar M, Obi Y, Kalantar-Zadeh K, Incremental and infrequent hemodialysis: a new paradigm for both dialysis initiation and conservative management. Panminerva medica, 2017 Jun;59(2):188-1962017
Park C, Obi Y, Streja E, Rhee CM, Catabay CJ, Vaziri ND, Kovesdy CP, Kalantar-Zadeh K, Serum uric acid, protein intake and mortality in hemodialysis patients. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2017 Oct 1;32(10):1750-17572017
Eriguchi R, Obi Y, Rhee CM, Chou JA, Tortorici AR, Mathew AT, Kim T, Soohoo M, Streja E, Kovesdy CP, Kalantar-Zadeh K, Changes in urine volume and serum albumin in incident hemodialysis patients. Hemodialysis international. International Symposium on Home Hemodialysis, 2017 Oct;21(4):507-5182017
Obi Y, Nguyen DV, Streja E, Rivara MB, Rhee CM, Lau WL, Chen Y, Kovesdy CP, Mehrotra R, Kalantar-Zadeh K, 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 : the official journal of the American Society for Bone and Mineral Research, 2017 Mar;32(3):549-5592017
Soohoo M, Ahmadi SF, Qader H, Streja E, Obi Y, Moradi H, Rhee CM, Kim TH, Kovesdy CP, Kalantar-Zadeh K, Association of serum vitamin B12 and folate with mortality in incident hemodialysis patients. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2017 Jun 1;32(6):1024-10322017
Hayashi T, Kimura T, Yasuda K, Sasaki K, Obi Y, Rakugi H, Isaka Y, Cardiac troponin T elevation at dialysis initiation is associated with all-cause and cardiovascular mortality on dialysis in patients without diabetic nephropathy. Clinical and experimental nephrology, 2017 Apr;21(2):333-3412017
Obi Y, Mikami S, Hamano T, Obi Y, Tanaka H, Shimomura A, Rakugi H, Inoue T, Isaka Y, Intravenous Vitamin B6 Increases Resistance to Erythropoiesis-Stimulating Agents in Hemodialysis Patients: A Randomized Controlled Trial. Journal of renal nutrition : the official journal of the Council on Renal Nutrition of the National Kidney Foundation, 2016 Nov;26(6):380-3902016
Mathew A, Obi Y, Rhee CM, Chen JL, Shah G, Lau WL, Kovesdy CP, Mehrotra R, Kalantar-Zadeh K, Treatment frequency and mortality among incident hemodialysis patients in the United States comparing incremental with standard and more frequent dialysis. Kidney international, 2016 Nov;90(5):1071-10792016
Yang X, Soohoo M, Streja E, Rivara MB, Obi Y, Adams SV, Kalantar-Zadeh K, Mehrotra R, Serum Magnesium Levels and Hospitalization and Mortality in Incident Peritoneal Dialysis Patients: A Cohort Study. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2016 Oct;68(4):619-6272016
Mathew AT, Fishbane S, Obi Y, Kalantar-Zadeh K, Preservation of residual kidney function in hemodialysis patients: reviving an old concept. Kidney international, 2016 Aug;90(2):262-2712016
Obi Y, Rhee CM, Mathew AT, Shah G, Streja E, Brunelli SM, Kovesdy CP, Mehrotra R, Kalantar-Zadeh K, Residual Kidney Function Decline and Mortality in Incident Hemodialysis Patients. Journal of the American Society of Nephrology : JASN, 2016 Dec;27(12):3758-37682016
Obi Y, Mehrotra R, Rivara MB, Streja E, Rhee CM, Lau WL, Kovesdy CP, Kalantar-Zadeh K, Hidden Hypercalcemia and Mortality Risk in Incident Hemodialysis Patients. The Journal of clinical endocrinology and metabolism, 2016 Jun;101(6):2440-92016
Obi Y, Kim T, Kovesdy CP, Amin AN, Kalantar-Zadeh K, Current and Potential Therapeutic Strategies for Hemodynamic Cardiorenal Syndrome. Cardiorenal medicine, 2016 Feb;6(2):83-982016
Obi Y, Streja E, Rhee CM, Ravel V, Amin AN, Cupisti A, Chen J, Mathew AT, Kovesdy CP, Mehrotra R, Kalantar-Zadeh K, Incremental Hemodialysis, Residual Kidney Function, and Mortality Risk in Incident Dialysis Patients: A Cohort Study. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2016 Aug;68(2):256-2652016
Obi Y, Qader H, Kovesdy CP, Kalantar-Zadeh K, Latest consensus and update on protein-energy wasting in chronic kidney disease. Current opinion in clinical nutrition and metabolic care, 2015 May;18(3):254-622015
Shimomura A, Matsui I, Hamano T, Ishimoto T, Katou Y, Takehana K, Inoue K, Kusunoki Y, Mori D, Nakano C, Obi Y, Fujii N, Takabatake Y, Nakano T, Tsubakihara Y, Isaka Y, Rakugi H, Dietary L-lysine prevents arterial calcification in adenine-induced uremic rats. Journal of the American Society of Nephrology : JASN, 2014 Sep;25(9):1954-652014
Obi Y, Hamano T, Ichimaru N, Tomida K, Matsui I, Fujii N, Okumi M, Kaimori JY, Yazawa K, Kokado Y, Nonomura N, Rakugi H, Takahara S, Isaka Y, Tsubakihara Y, Vitamin D deficiency predicts decline in kidney allograft function: a prospective cohort study. The Journal of clinical endocrinology and metabolism, 2014 Feb;99(2):527-352014
Inoue K, Hamano T, Nango N, Matsui I, Tomida K, Mikami S, Fujii N, Nakano C, Obi Y, Shimomura A, Kusunoki Y, Rakugi H, Isaka Y, Tsubakihara Y, Multidetector-row computed tomography is useful to evaluate the therapeutic effects of bisphosphonates in glucocorticoid-induced osteoporosis. Journal of bone and mineral metabolism, 2014 May;32(3):271-802014
Hamano T, Nakano C, Obi Y, Fujii N, Matsui I, Tomida K, Mikami S, Inoue K, Shimomura A, Kusunoki Y, Rakugi H, Isaka Y, Tsubakihara Y, Fibroblast growth factor 23 and 25-hydroxyvitamin D levels are associated with estimated glomerular filtration rate decline. Kidney international supplements, 2013 Dec;3(5):469-4752013
Kaimori JY, Ichimaru N, Isaka Y, Hashimoto F, Fu X, Hashimura Y, Kaito H, Iijima K, Kyo M, Namba T, Obi Y, Hatanaka M, Matsui I, Takabatake Y, Okumi M, Yazawa K, Nonomura N, Rakugi H, Takahara S, Renal transplantations from parents to siblings with autosomal recessive Alport syndrome caused by a rearrangement in an intronic antisense Alu element in the COL4A3 gene led to different outcomes. CEN case reports, 2013 May;2(1):98-1012013
Hayashi T, Kimura T, Yasuda K, Obi Y, Sasaki K, Iio K, Miyasato K, Kamimura T, Kitamura H, Tsubakihara Y, Rakugi H, Isaka Y, Prognostic significance of left ventricular hypertrophy observed at dialysis initiation depends on the pre-dialysis use of erythropoiesis-stimulating agents. Clinical and experimental nephrology, 2013 Apr;17(2):294-3032013
Obi Y, Ichimaru N, Kato T, Kaimori JY, Okumi M, Yazawa K, Rakugi H, Nonomura N, Isaka Y, Takahara S, A single daily dose enhances the adherence to immunosuppressive treatment in kidney transplant recipients: a cross-sectional study. Clinical and experimental nephrology, 2013 Apr;17(2):310-52013
Yasuda K, Kimura T, Sasaki K, Obi Y, Iio K, Yamato M, Rakugi H, Isaka Y, Hayashi T, Plasma B-type natriuretic peptide level predicts kidney prognosis in patients with predialysis chronic kidney disease. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2012 Oct;27(10):3885-912012
Obi Y, Hamano T, [Phosphate and the risk of mortality]. Clinical calcium, 2012 Oct;22(10):1515-232012
Obi Y, Ichimaru N, Hamano T, Tomida K, Matsui I, Fujii N, Okumi M, Kaimori JY, Yazawa K, Kokado Y, Tsubakihara Y, Nonomura N, Rakugi H, Takahara S, Isaka Y, Orally active vitamin d for potential chemoprevention of posttransplant malignancy. Cancer prevention research (Philadelphia, Pa.), 2012 Oct;5(10):1229-352012
Nakano C, Hamano T, Fujii N, Obi Y, Matsui I, Tomida K, Mikami S, Inoue K, Shimomura A, Nagasawa Y, Okada N, Tsubakihara Y, Rakugi H, Isaka Y, Intact fibroblast growth factor 23 levels predict incident cardiovascular event before but not after the start of dialysis. Bone, 2012 Jun;50(6):1266-742012
Shinzawa M, Yamamoto R, Nagasawa Y, Shoji T, Obi Y, Namba T, Kitamura H, Kaneko T, Okada N, Iwatani H, Yamauchi A, Tsubakihara Y, Imai E, Isaka Y, Rakugi H, Gene polymorphisms contributing to hypertension in immunoglobulin A nephropathy. Clinical and experimental nephrology, 2012 Apr;16(2):250-82012
Yamamoto R, Nagasawa Y, Iwatani H, Shinzawa M, Obi Y, Teranishi J, Ishigami T, Yamauchi-Takihara K, Nishida M, Rakugi H, Isaka Y, Moriyama T, Self-reported sleep duration and prediction of proteinuria: a retrospective cohort study. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2012 Mar;59(3):343-552012
Kimura T, Kitamura H, Inoue K, Kawada N, Matsui I, Nagasawa Y, Obi Y, Shinzawa M, Sakata Y, Hamono T, Rakugi H, Isaka Y, Effects of nicorandil on the reduction of BNP levels in patients with chronic kidney disease. Clinical and experimental nephrology, 2011 Dec;15(6):854-602011
Kimura T, Obi Y, Yasuda K, Sasaki K, Takeda Y, Nagai Y, Imai E, Rakugi H, Isaka Y, Hayashi T, Effects of chronic kidney disease and post-angiographic acute kidney injury on long-term prognosis after coronary artery angiography. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2011 Jun;26(6):1838-462011
Obi Y, Kimura T, Nagasawa Y, Yamamoto R, Yasuda K, Sasaki K, Kitamura H, Imai E, Rakugi H, Isaka Y, Hayashi T, Impact of age and overt proteinuria on outcomes of stage 3 to 5 chronic kidney disease in a referred cohort. Clinical journal of the American Society of Nephrology : CJASN, 2010 Sep;5(9):1558-652010
Kimura T, Yasuda K, Obi Y, Kobayashi K, Kuhara T, Isaka Y, Imai E, Rakugi H, Hayashi T, Quiz page June 2009: worsening kidney function with a history of urolithiasis. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2009 Jun;53(6):A37-92009
Hayashi T, Obi Y, Kimura T, Iio K, Sumitsuji S, Takeda Y, Nagai Y, Imai E, Cardiac troponin T predicts occult coronary artery stenosis in patients with chronic kidney disease at the start of renal replacement therapy. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association, 2008 Sep;23(9):2936-422008
Dashputre AA, Sumida K, Thomas F, Gatwood J, Akbilgic O, Potukuchi PK, Obi Y, Molnar MZ, Streja E, Kalantar Zadeh K, Kovesdy CP, Association of Dyskalemias with Ischemic Stroke in Advanced Chronic Kidney Disease Patients Transitioning to Dialysis. American journal of nephrology, 2021;52(7):539-547
Dashputre AA, Sumida K, Potukuchi PK, Kar S, Obi Y, Thomas F, Molnar MZ, Streja E, Kalantar-Zadeh K, Kovesdy CP, Potassium Trajectories prior to Dialysis and Mortality following Dialysis Initiation in Patients with Advanced CKD. Nephron, 2021;145(3):265-274
You AS, Kalantar-Zadeh K, Streja E, Park C, Sim JJ, Tantisattamo E, Hsiung JT, Obi Y, Potukuchi PK, Amin AN, Nguyen DV, Kovesdy CP, Rhee CM, Mortality Risk in Chronic Kidney Disease Patients Transitioning to Dialysis: Impact of Opiate and Non-Opiate Use. American journal of nephrology, 2020;51(9):715-725
Brown-Tortorici AR, Naderi N, Tang Y, Park C, You AS, Norris KC, Obi Y, Streja E, Kalantar-Zadeh K, Rhee CM, Serum albumin is incrementally associated with increased mortality across varying levels of kidney function. Nutrition (Burbank, Los Angeles County, Calif.), 2020 Nov-Dec;79-80:110818
Choi SJ, Obi Y, Ko GJ, You AS, Eriguchi R, Wang M, Rhee CM, Kalantar-Zadeh K, Comparing Patient Survival of Home Hemodialysis and Peritoneal Dialysis Patients. American journal of nephrology, 2020;51(3):192-200
Hur I, Wenziger C, Obi Y, Moradi H, Streja E, Tantisattamo E, Choi SJ, Lau WL, Chang Y, Jin A, Chen JLT, Kovesdy CP, Rhee CM, Kalantar-Zadeh K, Hemodynamic and Laboratory Changes during Incremental Transition from Twice to Thrice-Weekly Hemodialysis. Cardiorenal medicine, 2020;10(2):97-107
Lee Y, Okuda Y, Sy J, Kim SR, Obi Y, Kovesdy CP, Rhee CM, Streja E, Kalantar-Zadeh K, Ultrafiltration Rate Effects Declines in Residual Kidney Function in Hemodialysis Patients. American journal of nephrology, 2019;50(6):481-488
Soohoo M, Moradi H, Obi Y, Kovesdy CP, Kalantar-Zadeh K, Streja E, Serum triglycerides and mortality risk across stages of chronic kidney disease in 2 million U.S. veterans. Journal of clinical lipidology, 2019 Sep-Oct;13(5):744-753.e15
Eriguchi R, Obi Y, Soohoo M, Rhee CM, Kovesdy CP, Kalantar-Zadeh K, Streja E, Racial and Ethnic Differences in Mortality Associated with Serum Potassium in Incident Peritoneal Dialysis Patients. American journal of nephrology, 2019;50(5):361-369
Dratch A, Kleine CE, Streja E, Soohoo M, Park C, Hsiung JT, Rhee CM, Obi Y, Molnar MZ, Kovesdy CP, Kalantar-Zadeh K, Mean Corpuscular Volume and Mortality in Incident Hemodialysis Patients. Nephron, 2019;141(3):188-200
Hur I, Lee YK, Kalantar-Zadeh K, Obi Y, Individualized Hemodialysis Treatment: A Perspective on Residual Kidney Function and Precision Medicine in Nephrology. Cardiorenal medicine, 2019;9(2):69-82
Ko GJ, Obi Y, Soohoo M, Chang TI, Choi SJ, Kovesdy CP, Streja E, Rhee CM, Kalantar-Zadeh K, No Survival Benefit in Octogenarians and Nonagenarians with Extended Hemodialysis Treatment Time. American journal of nephrology, 2018;48(5):389-398
Kleine CE, Soohoo M, Ranasinghe ON, Park C, Marroquin MV, Obi Y, Rhee CM, Moradi H, Kovesdy CP, Kalantar-Zadeh K, Streja E, Association of Pre-End-Stage Renal Disease Hemoglobin with Early Dialysis Outcomes. American journal of nephrology, 2018;47(5):333-342
Tantisattamo E, Murray V, Obi Y, Park C, Catabay CJ, Lee Y, Wenziger C, Hsiung JT, Soohoo M, Kleine CE, Rhee CM, Kraut J, Kovesdy CP, Kalantar-Zadeh K, Streja E, Association of Pre-ESRD Serum Bicarbonate with Post-ESRD Mortality in Patients with Incident ESRD. American journal of nephrology, 2021;52(4):304-317
Catabay C, Obi Y, Streja E, Soohoo M, Park C, Rhee CM, Kovesdy CP, Hamano T, Kalantar-Zadeh K, Lymphocyte Cell Ratios and Mortality among Incident Hemodialysis Patients. American journal of nephrology, 2017;46(5):408-416
Kim T, Streja E, Soohoo M, Rhee CM, Eriguchi R, Kim TW, Chang TI, Obi Y, Kovesdy CP, Kalantar-Zadeh K, Serum Ferritin Variations and Mortality in Incident Hemodialysis Patients. American journal of nephrology, 2017;46(2):120-130
Kim T, Rhee CM, Streja E, Soohoo M, Obi Y, Chou JA, Tortorici AR, Ravel VA, Kovesdy CP, Kalantar-Zadeh K, Racial and Ethnic Differences in Mortality Associated with Serum Potassium in a Large Hemodialysis Cohort. American journal of nephrology, 2017;45(6):509-521
Sakaguchi Y, Hamano T, Nakano C, Obi Y, Matsui I, Kusunoki Y, Mori D, Oka T, Hashimoto N, Takabatake Y, Takahashi A, Kaimori JY, Moriyama T, Yamamoto R, Horio M, Sugimoto K, Yamamoto K, Rakugi H, Isaka Y, Association between Density of Coronary Artery Calcification and Serum Magnesium Levels among Patients with Chronic Kidney Disease. PloS one, 2016;11(9):e0163673
Soohoo M, Feng M, Obi Y, Streja E, Rhee CM, Lau WL, Wang J, Ravel VA, Brunelli S, Kovesdy CP, Kalantar-Zadeh K, Changes in Markers of Mineral and Bone Disorders and Mortality in Incident Hemodialysis Patients. American journal of nephrology, 2016;43(2):85-96
Hayashi T, Kimura T, Yasuda K, Sasaki K, Obi Y, Nagayama H, Ohno M, Uematsu K, Tamai T, Nishide T, Rakugi H, Isaka Y, Early Nephrology Referral 6 Months Before Dialysis Initiation Can Reduce Early Death But Does Not Improve Long-Term Cardiovascular Outcome on Dialysis. Circulation journal : official journal of the Japanese Circulation Society, 2016;80(4):1008-16
Obi Y, Ichimaru N, [Clinical and epidemiological studies of kidney transplantation in Japan: a review of literature]. Nihon Jinzo Gakkai shi, 2015;57(8):1303-10
Obi Y, Eriguchi R, Ou SM, Rhee CM, Kalantar-Zadeh K, What Is Known and Unknown About Twice-Weekly Hemodialysis. Blood purification, 2015;40(4):298-305
Obi Y, Hamano T, Isaka Y, Prevalence and prognostic implications of vitamin D deficiency in chronic kidney disease. Disease markers, 2015;2015:868961
Kaimori JY, Iwai S, Hatanaka M, Teratani T, Obi Y, Tsuda H, Isaka Y, Yokawa T, Kuroda K, Ichimaru N, Okumi M, Yazawa K, Rakugi H, Nonomura N, Takahara S, Kobayashi E, Non-invasive magnetic resonance imaging in rats for prediction of the fate of grafted kidneys from cardiac death donors. PloS one, 2013;8(5):e63573
Kimura T, Yasuda K, Obi Y, Satoh T, Namba T, Sasaki K, Muramoto N, Wada A, Rakugi H, Isaka Y, Hayashi T, [Case of HIV-associated nephropathy accompanied by nephrotic syndrome and acute worsening of kidney function]. Nihon Jinzo Gakkai shi, 2012;54(2):94-8
Yasuda K, Kimura T, Obi Y, Sasaki K, Hatanaka M, Isaka Y, Rakugi H, Hayashi T, [Plasma B-type natriuretic peptide level predicts the renal outcome in patients with chronic kidney disease]. Nihon Jinzo Gakkai shi, 2010;52(8):1007-14
Kimura T, Iio K, Obi Y, Hayashi T, [Left ventricular hypertrophy in predialysis chronic kidney disease: impact of cardiomuscular stress markers]. Nihon Jinzo Gakkai shi, 2007;49(8):1007-13
Soohoo M, Obi Y, Rivara MB, Adams SV, Lau WL, Rhee CM, Kovesdy CP, Kalantar-Zadeh K, Arah OA, Mehrotra R, Streja E, Comparative Effectiveness of Dialysis Modality on Laboratory Parameters of Mineral Metabolism. American journal of nephrology, 2022;53(2-3):157-168

Clinical Trial

Nakano C, Hamano T, Fujii N, Matsui I, Tomida K, Mikami S, Inoue K, Obi Y, Okada N, Tsubakihara Y, Isaka Y, Rakugi H, Combined use of vitamin D status and FGF23 for risk stratification of renal outcome. Clinical journal of the American Society of Nephrology : CJASN, 2012 May;7(5):810-92012

Editorial

Tio MC, Butler J, Zhu X, Obi Y, Yen TE, Kalantar-Zadeh K, Streja E, Dossabhoy NR, Hall ME, Shafi T, Individualized Risk of CKD Progression among US Adults. Journal of the American Society of Nephrology : JASN, 2024 Aug 1;35(8):1076-10832024
Saran R, Robinson B, Abbott KC, Agodoa LYC, Bragg-Gresham J, Balkrishnan R, Bhave N, Dietrich X, Ding Z, Eggers PW, Gaipov A, Gillen D, Gipson D, Gu H, Guro P, Haggerty D, Han Y, He K, Herman W, Heung M, Hirth RA, Hsiung JT, Hutton D, Inoue A, Jacobsen SJ, Jin Y, Kalantar-Zadeh K, Kapke A, Kleine CE, Kovesdy CP, Krueter W, Kurtz V, Li Y, Liu S, Marroquin MV, McCullough K, Molnar MZ, Modi Z, Montez-Rath M, Moradi H, Morgenstern H, Mukhopadhyay P, Nallamothu B, Nguyen DV, Norris KC, O'Hare AM, Obi Y, Park C, Pearson J, Pisoni R, Potukuchi PK, Repeck K, Rhee CM, Schaubel DE, Schrager J, Selewski DT, Shamraj R, Shaw SF, Shi JM, Shieu M, Sim JJ, Soohoo M, Steffick D, Streja E, Sumida K, Kurella Tamura M, Tilea A, Turf M, Wang D, Weng W, Woodside KJ, Wyncott A, Xiang J, Xin X, Yin M, You AS, Zhang X, Zhou H, Shahinian V, US Renal Data System 2018 Annual Data Report: Epidemiology of Kidney Disease in the United States. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2019 Mar;73(3 Suppl 1):A7-A82019
Saran R, Robinson B, Abbott KC, Agodoa LYC, Bhave N, Bragg-Gresham J, Balkrishnan R, Dietrich X, Eckard A, Eggers PW, Gaipov A, Gillen D, Gipson D, Hailpern SM, Hall YN, Han Y, He K, Herman W, Heung M, Hirth RA, Hutton D, Jacobsen SJ, Jin Y, Kalantar-Zadeh K, Kapke A, Kovesdy CP, Lavallee D, Leslie J, McCullough K, Modi Z, Molnar MZ, Montez-Rath M, Moradi H, Morgenstern H, Mukhopadhyay P, Nallamothu B, Nguyen DV, Norris KC, O'Hare AM, Obi Y, Park C, Pearson J, Pisoni R, Potukuchi PK, Rao P, Repeck K, Rhee CM, Schrager J, Schaubel DE, Selewski DT, Shaw SF, Shi JM, Shieu M, Sim JJ, Soohoo M, Steffick D, Streja E, Sumida K, Tamura MK, Tilea A, Tong L, Wang D, Wang M, Woodside KJ, Xin X, Yin M, You AS, Zhou H, Shahinian V, US Renal Data System 2017 Annual Data Report: Epidemiology of Kidney Disease in the United States. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2018 Mar;71(3 Suppl 1):A72018
Obi Y, Kalantar-Zadeh K, Incremental and Once- to Twice-Weekly Hemodialysis: From Experience to Evidence. Kidney international reports, 2017 Sep;2(5):781-7842017
Saran R, Robinson B, Abbott KC, Agodoa LY, Albertus P, Ayanian J, Balkrishnan R, Bragg-Gresham J, Cao J, Chen JL, Cope E, Dharmarajan S, Dietrich X, Eckard A, Eggers PW, Gaber C, Gillen D, Gipson D, Gu H, Hailpern SM, Hall YN, Han Y, He K, Hebert H, Helmuth M, Herman W, Heung M, Hutton D, Jacobsen SJ, Ji N, Jin Y, Kalantar-Zadeh K, Kapke A, Katz R, Kovesdy CP, Kurtz V, Lavalee D, Li Y, Lu Y, McCullough K, Molnar MZ, Montez-Rath M, Morgenstern H, Mu Q, Mukhopadhyay P, Nallamothu B, Nguyen DV, Norris KC, O'Hare AM, Obi Y, Pearson J, Pisoni R, Plattner B, Port FK, Potukuchi P, Rao P, Ratkowiak K, Ravel V, Ray D, Rhee CM, Schaubel DE, Selewski DT, Shaw S, Shi J, Shieu M, Sim JJ, Song P, Soohoo M, Steffick D, Streja E, Tamura MK, Tentori F, Tilea A, Tong L, Turf M, Wang D, Wang M, Woodside K, Wyncott A, Xin X, Zang W, Zepel L, Zhang S, Zho H, Hirth RA, Shahinian V, US Renal Data System 2016 Annual Data Report: Epidemiology of Kidney Disease in the United States. American journal of kidney diseases : the official journal of the National Kidney Foundation, 2017 Mar;69(3 Suppl 1):A7-A82017
Obi Y, Kalantar-Zadeh K, Yet Another Vitamin D Analogue for the Management of Secondary Hyperparathyroidism: A Triton among the Minnows? American journal of nephrology, 2016;43(3):221-4

Presentations

National and International Invited Seminars/Lectures, Discrepancy between lifetime risk of end-stage kidney disease vs. 3-year risk of CKD progression in the US Adults with Diabetes, American Society of Nephrology Kidney Week, San Diego, CA10/2024
National and International Invited Seminars/Lectures, GFR Estimation Errors and Association with Outcomes in CKD, American Society of Nephrology Kidney Week, San Diego, CA10/2024
Poster Presentation, Effects of a Telehealth Home Blood Pressure Monitoring Program among In-center Hemodialysis Patients, National Kidney Foundation Spring Clinical Meeting, Long Beach, CA05/2024
Poster Presentation, Discrepancy Between Lifetime vs. Five-Year Risk Estimates for ESKD in US Adults with Diabetes, ASN Kidney Week, Philadelphia, PA11/2023
Poster Presentation, Pantoea dispersa Peritonitis in a Patient on Peritoneal Dialysi, ASN Kidney Week, Philadelphia, PA11/2023
Regional Invited Seminars/Lectures, The importance of residual kidney function, The Nephrology Advanced Practice Provider Monthly Education Series, Virtual10/2023
Regional Invited Seminars/Lectures, Lifetime Risk of Kidney Failure among U.S. adults with Diabetes, Southern Society for Clinical Investigation – American Federation for Medical Research Southern Regional Meeting, New Orleans, LA02/2023
Poster Presentation, Hemoglobin A1c levels and infection episodes among hemodialysis patients., Southern Society for Clinical Investigation – American Federation for Medical Research Southern Regional Meeting, New Orleans, LA02/2023
State/Local Invited Seminars/Lectures, Incremental Hemodialysis, Community Renal Awareness Event by the Magnolia American Nephrology Nurses Association Chapter., Jackson, MS12/2022
National and International Invited Seminars/Lectures, Telehealth-assisted Home BP Monitoring for In-Center Hemodialysis Patients: A Pragmatic Implementation Study, SEARCH 2022 - National Telehealth Research Symposium, Fully Virtual11/2022
Poster Presentation, Telehealth-Assisted Home Blood Pressure Monitoring for In-Center Hemodialysis Patients, ASN Kidney Week, Orlando, FL11/2022
Poster Presentation, Discordance Between Cause of Death Reported to USRDS and National Death Index for Hemodialysis Patients, ASN Kidney Week, Orlando, FL11/2022
National and International Invited Seminars/Lectures, The association of chronic patiromer use with renal outcome among US veterans, European Renal Association Congress, Paris, France05/2022
State/Local Invited Seminars/Lectures, Uncertainty Surrounding Phosphorus Management, Renal Dietitians of MS meeting, Jackson, MS05/2022
State/Local Invited Seminars/Lectures, Preservation of Residual Renal Function: How Significant Is This?, UC Irvine Nephrology Renal Grand Rounds, Virtual05/2022
National and International Invited Seminars/Lectures, Characteristics of Patiromer users among US Veterans with Chronic Kidney Disease and Hyperkalemia, National Kidney Foundation Spring Clinical Meeting, Boston, MA04/2022
National and International Invited Seminars/Lectures, Preservation of Residual Renal Function: How Significant Is This?, The Annual Dialysis Conference 2023, Virtual03/2022
State/Local Invited Seminars/Lectures, An alternative path – how do become a physician-scientist in the US?, Cardio-Renal-Diabetes workshop, Nagoya, Japan & Virtual02/2022
Poster Presentation, A comparison of the associations of urine markers with the rate of decline in kidney allograft function, ASN Kidney Week, Fully virtual10/2020
Poster Presentation, The Effect of Anemia Correction with ESA and Cholecalciferol Supplementation on Post-transplant Malignancy among Kidney Transplant Recipients: A Pre-specified Secondary Outcome Analysis of a Multicenter Randomized Clinical Trial, ASN Kidney Week, Fully virtual10/2020
Poster Presentation, Changes in Dietary Protein Intake and outcomes among Patients with Chronic Kidney Disease, ASN Kidney Week, Fully virtual10/2020
Poster Presentation, Correcting Anemia and Native Vitamin D Supplementation in Kidney Transplant Recipients: A Randomized Clinical Trial, ASN Kidney Week, Washington, DC11/2019
National and International Invited Seminars/Lectures, Development and Validation of Prediction Scores for Early Mortality upon Transition to Dialysis, The 4th Next Generation Kidney Research Meeting, Tokyo, Japan07/2018
National and International Invited Seminars/Lectures, The updated recommendations for the management of serum calcium and phosphorus, In KDIGO CKD-MBD Guideline Update and Clinical Practice in Japan at the 63rd Congress of the Japanese Society of Dialysis Therapy, Kobe, Japan06/2018
National and International Invited Seminars/Lectures, Risk-benefit profile of Intensive BP control across stages of CKD, Niigata, Japan, JSN/KDIGO Joint Symposium; KDIGO Topics on Cardiovascular Diseases in CKD at the 61st Annual Meeting of the Japanese Society of Nephrology06/2018
National and International Invited Seminars/Lectures, Hidden Hypercalcemia, International Society of Nephrology (ISN) Frontiers Meeting, Tokyo, Japan02/2018
Poster Presentation, Novel Prediction Score for Early Death upon Transition to Dialysis: A Veterans Affairs (VA) and Kaiser Permanente Southern California (KPSC) Big Data Approach, ASN Kidney Week, New Orleans, LA11/2017
Poster Presentation, Association of Pre-ESRD Serum Bicarbonate with Post-ESRD Mortality among Incident Dialysis Patients: A Transition of Care in CKD Study, ASN Kidney Week, New Orleans, LA11/2017
Poster Presentation, Biased Mortality Risk Associated with Change in Normalized Protein Catabolic Rate Due to Residual Kidney Function among Hemodialysis Patients, ASN Kidney Week, New Orleans, LA11/2017
National and International Invited Seminars/Lectures, Hidden Hypercalcemia in Hemodialysis Patients”, The CKD-MBD Forum 2017, Tokyo, Japan08/2017
Poster Presentation, Association of Pre-ESRD Serum Calcium with post-ESRD Mortality in Late-stage CKD, European Renal Association–European Dialysis and Transplant Association, Madrid, Spain06/2017
Poster Presentation, Impact of Body Mass Index on The Mortality Risk Associated with Peritoneal Dialysis vs. Hemodialysis, National Kidney Foundation Spring Clinical Meeting, Orlando, FL04/2017
National and International Invited Seminars/Lectures, How to understand research articles on clinical studies, The 51st Congress of the Japanese Society of Pediatric Nephrology, Nagoya, Japan04/2017
Poster Presentation, Improved Mortality Predictability of Total Serum Calcium by Novel Correction Equation in Hemodialysis Patients, ASN Kidney Week, Chicago, IL11/2016
Poster Presentation, Cholecalciferol Supplementation and Serum Hepcidin-25 Concentrations among Hemodialysis Patients: a Randomized Controlled Trial, ASN Kidney Week, Chicago, IL11/2016
National and International Invited Seminars/Lectures, Morbid Obesity and Time to Transfer to Hemodialysis among Incident Peritoneal Dialysis Patients, ASN Kidney Week, Chicago, IL11/2016
Poster Presentation, A Novel Comorbidity Score for Predicting Early Mortality upon Transition to ESRD among Incident Dialysis Patients, ASN Kidney Week, Chicago, IL11/2016
Poster Presentation, Cholecalciferol Supplementation and MBD-related Parameters in Hemodialysis Patients: A Randomized Controlled Trial, ASN Kidney Week, Chicago, IL11/2016
Poster Presentation, Impact of Genetic Variants in DBP, CYP2R1, CYP24A1, and VDR on Serum 25-Hydroxyvitamin D Levels and Cholecalciferol Supplementation in Hemodialysis Patients, Chicago, IL, Chicago, IL11/2016
National and International Invited Seminars/Lectures, Tips for efficient literature retrieval, The 59th Congress of the Japanese Society of Dialysis Therapy, Kobe, Japan07/2016
National and International Invited Seminars/Lectures, Active vitamin D treatment and infectious mortality in dialysis patients, International Congress on Nutrition and Metabolism in Renal Disease, Okinawa, Japan04/2016
National and International Invited Seminars/Lectures, Development and Evaluation of Novel Correction Equations for Serum Calcium Concentrations in Hemodialysis Patients, San Diego, CA, ASN Kidney Week11/2015
Poster Presentation, Incremental Hemodialysis, Residual Kidney Function, and Mortality Risk in Incident Hemodialysis Patients, ASN Kidney Week, San Diego, CA11/2015
Poster Presentation, Predictors of Substantial Residual Kidney Function in the First Year of Hemodialysis Treatment, ASN Kidney Week, San Diego, CA11/2015
National and International Invited Seminars/Lectures, Interdialytic weight gain modifies the association of hemodialysis frequency with decline in residual kidney function in incident dialysis patients, National Kidney Foundation Spring Clinical Meeting, Dallas, TX03/2015
Poster Presentation, Incremental Hemodialysis is Associated with Preserved Residual Kidney Function in Incident Hemodialysis Patients, World Congress of Nephrology, Cape Town, South Africa03/2015
Poster Presentation, Vitamin B6 Supplementation Increases Resistance to Erythropoiesis-Stimulating Agents in Prevalent Hemodialysis Patients: A Bicenter, Open-Label, Randomized Controlled Trial, ASN Kidney Week, Philadelphia, PA11/2014
National and International Invited Seminars/Lectures, Clinical research in nephrology: the good, the bad, and ugly, The 64th Annual Meeting of the Japanese Society of Nephrology, Yokohama, Japan06/2014
Poster Presentation, Low Vitamin D and Adverse Allograft Outcomes in Kidney Transplant Recipients, ASN Kidney Week, Atlanta, GA11/2013
Poster Presentation, Aortic and Mitral Annular Calcifi cation in Patients with CKD and Diabetes, ASN Kidney Week, Atlanta, GA11/2013
National and International Invited Seminars/Lectures, Vitamin D status predicts rejection episodes and change in allograft kidney function over time in kidney transplant recipients, European Renal Association–European Dialysis and Transplant Association, Istanbul, Turkey05/2013
Poster Presentation, Oral Active Vitamin D Therapy for Potential Chemoprevention of Post-Transplant Malignancy, ASN Kidney Week, San Diego, CA11/2012
Poster Presentation, Examining Heterogeneity in the Effect of Protein Restriction for Chronic Kidney Disease: A Meta-Analysis and Meta-Regression of Randomized Controlled Trials, ASN Kidney Week, San Diego, CA11/2012
State/Local Invited Seminars/Lectures, Evidence-based nutritional therapy for patients with chronic kidney disease, The 15th Meeting of the Niigata Dietetic Association, Niigata, Japan08/2012
Poster Presentation, The impact of once-daily dosing on adherence to immunosuppressive medication in kidney transplant recipients, European Renal Association–European Dialysis and Transplant Association, Paris, France05/2012
State/Local Invited Seminars/Lectures, Reevaluation of nutritional therapy for patients with chronic kidney disease, The 327th Meeting of the Osaka University Clinical Nutrition Conference, Osaka, Japan05/2012
National and International Invited Seminars/Lectures, The impact of once-daily dosing on adherence to immunosuppressive medication in kidney transplant recipients, Congress of the Asian Society of Transplantation, Soul, Korea09/2011
Poster Presentation, Simple risk stratification strategy for patients with stage 3-5 CKD, European Renal Association–European Dialysis and Transplant Association, Munich, Germany06/2010
Poster Presentation, Peripheral artery disease as a strong predictor of death in patients with advanced CKD, ASN Renal Week, San Diego, CA10/2009
Poster Presentation, The heterogeneity of patients with advanced chronic kidney disease, ASN Renal Week, San Diego, CA10/2009
Poster Presentation, Nephrological care improves the prognosis of patients with chronic kidney disease stage 3-5, World Congress of NephrologyRenal Association–European Dialysis and Transplant Association Congress, Milan, Italy05/2009

Honors, Awards, and Recognition

Young Faculty Research Award, Southern Society for Clinical Investigation2025
Physician’s Recognition Award with Commendation, American Medical Association2024
Fellow, Southern Society for Clinical Investigation2024
Young Faculty Research Award, Southern Society for Clinical Investigation2024
Best Clinical Research Poster, University of Mississippi Medical Center Annual Department of Medicine2023
Clinical and Translational Research Scholar, The Mississippi Center for Clinical and Translational Research2021
Fellow, American College of Physician2020
Fellow, Japanese Society of Nephrology2019
Fellow, American Society of Nephrology2017
Research Fellow, The Uehara Memorial Foundation2017
Best Abstract Award, The 18th International Congress on Nutrition and Metabolism in Renal Disease2016
Fellow, Japanese Society of Internal Medicine2015
Best Abstract by a Young Author Award, The 50th ERA-EDTA Congress2013
Best Abstract (Gold Award), The 12th Congress of the Asian Society of Transplantation2011
Fellow, Japanese Society of Dialysis Therapy2008

Professional Membership and Service

American Society of Nephrology, Fellow
Southern Society for Clinical Investigation, Fellow
Japanese Society for Clinical Renal Transplantation, Fellow
Japan Society for Transplantation, Member
Japanese Society for Dialysis Therapy, Fellow
Japanese Society of Nephrology, Fellow
Japanese Society of Internal Medicine, Fellow
International Society of Nephrology, Member
American Medical Association, Member
American College of Physicians, Fellow

Committee Service

Mentoring Committee in Postdoctoral Training for Dr. Gertrude Arthur from Department of Physiology & Biophysics, Member2023 - Present
Nephrology Fellowship Program Evaluation Committee, Member2023 - Present
Nephrology Fellowship Program Evaluation Committee, Member2022 - Present
the Public Relations Committee, American College of Physicians Japan Chapter, Member2018 - 2020
the Dietary therapy for Patients with CKD and Frailty/Sarcopenia 2018 Working Group, Japanese Society of Nephrology, Member2017 - 2019
the Japanese Dietary Reference Intake 2015 Working Group, the Ministry of Health, Labor and Welfare, Japan, Member2013 - 2014
the Evidence-based Practice Guideline for the Treatment of CKD 2013 Work Group, Japanese Society of Nephrology, Member2012 - 2014

Other Service

The Pilot Grants Program of the Cardiorenal and Metabolic Diseases Research (CMDRC)-COBRE11/2024 - 12/2024
Department of Medicine Mortality Review, Working member09/2024 - Present
NIH Study Section08/2024 - 01/2025
JAMA Open08/2024 - 08/2024
Consultant for CSL VIfor04/2024 - Present
The Intramural Research Support Program01/2024 - 02/2024
The Pilot Grants Program of the Cardiorenal and Metabolic Diseases Research (CMDRC)-COBRE09/2023 - 09/2023
Department of Medicine Grand Rounds Scholarship Day04/2023 - 04/2023
Seminars in Dialysis07/2017 - 06/2018
Renal Replacement Therapy04/2017 - Present
PLOS One
Journal of Cachexia, Sarcopenia and Muscle
Nephrology Dialysis Transplantation
BMJ Open
Scientific Reports
American Journal of Nephrology
Journal of Clinical Endocrinology & Metabolism
Journal of Renal Nutrition
EbioMedicine
Expert Review of Clinical Pharmacology
Renal Failure
Medical Sciences
Cochrane Database of Systematic Reviews
New England Journal of Medicine
BMC Nephrology
Clinical Nutrition
Kidney International Report
Clinical Journal of the American Society of Nephrology
Kidney Medicine
Heliyon

Teaching Experience

Medicine, Lecture, Lecturer, Annual ITE Nephrology Board Review Prep SeriesSpring 2024 - 2024
Medicine, Course, Course Director, Nephrology Fellowship Journal ClubAnnual 2024 - 2025
Medicine, Lecture, Lecturer, Diabetic NephropathyFall 2024 - 2024
Medicine, Small Group, Lecturer, Electrolyte Disturbances in Patients with Chronic Alcohol-Use DisorderFall 2023 - 2023
Medicine, Small Group, Lecturer, Statistics for NephrologySpring 2023 - 2023
Nephrology Series, Medicine, Lecture, Lecturer, Internal Medicine Residents Noon ConferenceSpring 2023
Medicine, Lecture, Lecturer, Annual ITE Nephrology Board Review Prep SeriesSpring 2023 - 2023
Nephrology Series, Medicine, Lecture, Lecturer, Internal Medicine Residents Noon ConferenceSpring 2022 - 2022
Medicine, Lecture, Lecturer, Annual ITE Nephrology Board Review Prep SeriesSpring 2022 - 2022
Medicine, Small Group, Lecturer, Electrolyte Disturbances in Patients with Chronic Alcohol-Use DisorderFall 2021 - 2021

Directed Student Learning

Supervised Research, Advised: Karen Wong2024 - Present
Supervised Research, Advised: Rehma Siddiqui2023 - Present

Fellows supervised

Harold Simmons Center for Kidney Disease Research and Epidemiology, Post-Doc Advisor, 7 fellows supervised07/2013 - 06/2023
UMMC Nephrology Fellowship, Training Faculty, 10 fellows supervised

Residency Training

UMMC Internal Medicine Residency, Research Advisor