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

Journal Article

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

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
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
JAMA Open
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