Dr. Lakshman Gunaratnam, M.D., M.Sc.

Associate Professor of Medicine
Microbiology & Immunology, Physiology & Pharmacology, Surgery
Consultant Transplant Nephrologist
London Health Sciences Centre

Dr. Lakshman Gunaratnam is an Assistant Professor and Clinician-Scientist at the University of Western Ontario in the Department of Medicine and Microbiology & Immunology.


He earned his Honours Bachelor of Science and Master of Science degrees at the University of Toronto, and graduated from medical school at the University of Ottawa. He completed a residency in internal medicine at the University of Ottawa, and fellowships in Nephrology and Transplantation at Brigham and Women's and Massachusetts General Hospitals, Harvard Medical School, Boston. He was later an associate physician at the Brigham and Women's Hospital, Boston prior to being recruited to London. Dr. Gunaratnam's clinical interest and expertise lies in acute kidney injury and renal transplantation.

Dr. Gunaratnam's research program focuses on the role ischemia reperfusion injury plays in regulating innate immunity and inflammation in renal transplantation. His CIHR-funded basic science research laboratory is actively studying how injured kidney epithelial cells regulate inflammation by expressing Kidney Injury Molecule-1. Dr. Gunaratnam is the recipient of a KRESCENT New Investigator Award and the Schulich Clinician-Scientist Award.


Dr. Gunaratnam hopes to develop novel therapeutic strategies to ameliorate ischemic acute kidney injury and prolong the lifespan of transplanted organs.



1996          Hon. Bachelor’s of Science, University of Toronto
1999          Master’s of Science (Immunology), University of Toronto
2002          Doctorate in Medicine, University of Ottawa

Post-doctoral Clinical Training 

July '02- Jun '05         Residency in Internal Medicine, The Ottawa Hospital, University of Ottawa

July '08 - Jun '09         Fellowship in Nephrology, Harvard Medical School, Brigham General Hospital Joint Program

July '09 - Dec '09         Transplant Fellow, Harvard Medical School, Brigham and Women’s Hospital


Post-doctoral Research Training

Jan '02 - Aug '05          Research Fellow, Department of Cellular and Molecular Medicine, University of Ottawa (Mentor: Dr. Stephen Lee, PhD)

Aug '05 - Jun '08          Research Fellow, Harvard Medical School, Brigham and Women’s Hospital (Mentor: Dr. Joseph V. Bonventre, MD, PhD)


2005               Resident Research Award, Department of Medicine, University of Ottawa

2005               CSCI/CIHR Resident Research Award

2005               Royal college of Physicians and Surgeons of Canada-Canadian Research Award for speciality residents (Single National Award)

2005               Canadian Institutes of Health Research Fellowship

2005               KRESCENT Fellowship Award

2011               Schulich Clinician - Scientist Award

2011               AMOSO Opportunities Fund

2011               KRESCENT New Investigator Award