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Brian Kalish

Title: Staff Neonatologist, Division of Neonatology
Designations: MD
Phone: 416-813-7910 ext. 301433
U of T Positions: Assistant Professor, Departments of Paediatrics and Molecular Genetics


Dr. Kalish is board-certified in Paediatrics and Neonatal-Perinatal Medicine. He has clinical expertise in the care of critically-ill newborns and neonatal neuro-intensive care.

Dr. Kalish is an Assistant Professor of Paediatrics and Molecular Genetics at the University of Toronto. He graduated Magna Cum Laude from Harvard Medical School and he completed clinical training in paediatrics and neonatology at Boston Children’s Hospital. His clinical and research interests are in the fields of neonatal neuroprotection and developmental neurobiology. His laboratory investigates mechanisms by which an adverse intrauterine or early postnatal environment shape brain development. Dr. Kalish’s research leverages cutting edge genomics, molecular neuroscience, and mouse models to understand critical periods in neural circuit wiring.


Dr. Kalish’s research is motivated by the desire to improve the lives of fragile newborns and to prevent or treat neurodevelopmental disorders. Specifically, the mission of the Kalish Lab is to understand how pregnancy and early life experience shape neurodevelopment and plasticity. The lab leverages cutting-edge molecular neuroscience and genomics to address fundamental questions at the intersection of neurodevelopment and reproductive biology.


  • 2008–2013: MD, Harvard Medical School (Magna Cum Laude), Boston, Massachusetts United States
  • 2004–2008: BA, Public Health Studies, Johns Hopkins University, Baltimore, Maryland, United States
  • 2013–2015:  Resident, Pediatrics, Boston Combined Residency Program (Boston Children’s Hospital and Boston Medical Center), Boston, Massachusetts, United States
  • 2015–2019: Fellow, Neonatal-Perinatal Medicine, Harvard Program in Neonatal-Perinatal Medicine, Boston, Massachusetts, United States


  • 2021–Present: Staff Neonatologist, SickKids, Toronto, ON, Canada
  • 2019–2020: Staff Neonatologist, Boston Children’s Hospital, Boston, Massachusetts, United States
  • 2017–2020: Critical Care Transport Physician, Boston Children’s Hospital, Boston, Massachusetts, United States
  • 2017–2020: Post-doctoral fellow in Neurobiology, Harvard Medical School, Boston, Massachusetts, United States
  • 2021–Present: Assistant Professor of Paediatrics and Molecular Genetics, University of Toronto, Toronto, ON, Canada
  • 2019–2020: Instructor of Pediatrics, Harvard Medical School, Boston, Massachusetts, United States


  • 2020: Critical Care Transport Team Extra Mile Award, Boston Children’s Hospital
  • 2016: Fellow Excellence in Teaching Award, Harvard Neonatal-Perinatal Medicine Fellowship Program
  • 2013: James Tolbert Shipley Prize for Excellence and Accomplishment in Research, Harvard Medical School 


  1. Kalish BT*, Kim E*, Finander B, Duffy EE, Kim H, Gilman, Kim YS, Tong L, Kaufman RJ, Griffith EC, Choi GB, Greenberg ME, Huh JR. Maternal immune activation in mice disrupts proteostasis in the fetal brain. Nat Neurosci. 2020. 
  2. Tong L, Kalish BT. The impact of maternal obesity on childhood neurodevelopment. J Perinatol. 2020 Nov 28. 
  3. Kalish BT, Barkat T, Diel EE, Greenberg ME, Hensch Single-nucleus RNA sequencing of mouse auditory cortex reveals critical period triggers and brakes. Proc Natl Acad Sci U S A. 2020 May 26;117(21):11744-11752. 
  4. Kalish BT, Cheadle L, Hrvatin S, Nagy MA, Rivera S, Crow M, Gillis J, Kirchner R, Greenberg ME. Single-cell transcriptomics of the developing lateral geniculate nucleus reveals insights into circuit assembly and refinement. Proc Natl Acad Sci U S A. 2018 Jan 30; 115(5): E1051-E1060.
  5. Panigrahy D*, Kalish BT*, Huang S, Bielenberg DR, Le HD, Yang J, Edin ML, Lee C, Benny O, Mudge DK, Butterfield CE, Mammoto A, Mammoto T, Inceoglu B, Jenkins RL, Simpson MA, Akino T, Lih FB, Tomer KB, Ingber DE, Hammock BD, Falck JR, Manthati VL, Kaipainen A, D'Amore PA, et al. (28 authors). Epoxyeicosanoids promote organ and tissues regeneration. Proc Natl Acad Sci U S A. 2013 Aug 13; 110(33): 13528-33. *Equal Contribution 
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