UHN's Global Impact

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Eleven current UHN principal investigators among Clarivate’s world’s highly cited researchers.
Posted On: November 15, 2023

Congratulations to the 11 current researchers with principal investigator (PI) status at UHN who have made the coveted 2023 list of Highly Cited Researchers from Clarivate—a global leader in bibliometrics and analytics. A total of 7,125 Highly Cited Researcher designations were awarded to 6,849 individuals from 67 countries. 

Citations, the acknowledgment of a scientific article in subsequent research, serve as a concrete metric of a publication's influence within a specific field. The Clarivate Highly Cited Researcher accolade is a testament to those whose publications over the past decade rank among the top 1% most-cited publications in their respective fields and publication years. 

Notably, 7 of UHN's PIs on the list received the added distinction of being included in the ‘Cross-Field’ category, underscoring their interdisciplinary excellence and impact in multiple research fields.  

Dr. Brad Wouters, Executive Vice-President of Science and Research at UHN, expresses admiration for these PIs, “These are exceptional leaders in their fields. Their work is not only making waves in the global scientific community but also driving the development of clinical innovations, making our vision of A Healthier World a reality. We take pride in their accomplishments and are honoured to celebrate their achievements.” 

The UHN PIs and the categories in which they received their distinction are listed below. To read more, see the Clarivate press release.  

Dr. Cheryl Arrowsmith | Cross-Field 

Senior Scientist, Princess Margaret Cancer Centre 

Research focus: Cancer-related structural biology, chemical biology and epigenetics. 

Dr. Gary Bader | Cross-Field  

Affiliate Scientist, Princess Margaret Cancer Centre 

Research focus: Bridging molecular and clinical datasets to identify clinically relevant targets of cancer and regenerative wound healing processes. 

Dr. Slava Epelman | Immunology 

Senior Scientist, Toronto General Hospital Research Institute 

Research focus: The contribution of immune cells to cardiac tissue injury and repair. 

Dr. Eddy Fan | Clinical Medicine  

Scientist, Toronto General Hospital Research Institute 

Research focus: Advanced life support for acute respiratory failure and patient outcomes from critical illness. 

Dr. Michael Fehlings | Cross-Field 

Senior Scientist, Krembil Research Institute 

Research focus: Studying spinal cord injuries by combining different scientific methods to understand and treat damage.  

Dr. Steven Gallinger | Cross-Field

Clinician Scientist, Princess Margaret Cancer Centre 

Research focus: Cancer genetics, including gastrointestinal, colorectal and pancreatic cancers. 

Dr. Anthony Lang | Neuroscience and Behavior  

Senior Scientist, Krembil Research Institute 

Research focus: The disease etiology, pathogenesis and treatment of Parkinson disease and related movement disorders. 

Dr. Andres Lozano | Cross-Field 

Senior Scientist, Krembil Research Institute 

Research focus: Brain mapping, deep brain stimulation and focused ultrasound in patients and experimental models of brain diseases 

Dr. Tak Mak | Cross-Field 

Senior Scientist, Princess Margaret Cancer Centre 

Research focus: The mechanisms underlying immune responses and the pathogenesis and tumorigenesis of cancer. 

Dr. Roger McIntyre | Psychiatry and Psychology 

Clinician Investigator, Krembil Research Institute 

Research focus: The effects of mood disorders on cognitive function, related health conditions and workplace functioning. 

Dr. Lillian Siu | Cross-Field 

Senior Scientist, Princess Margaret Cancer Centre 

Research focus: New anticancer drug development, particularly with respect to head and neck malignancies.