Hans Tómas Björnsson MD PhD
Adjunct lecturer, Faculty of Medicine, University of Iceland
Assistant professor of pediatrics and genetics, Johns Hopkins School of Medicine
Assistant residency program director, Clinical Genetics, Johns Hopkins SOM
Director of Epigenetics and Chromatin Clinic, Johns Hopkins SOM
Hans Tomas Bjornsson received his medical degree from the University of Iceland. Dr. Bjornsson then received a Ph.D. degree in human genetics from the predoctoral program in genetics at Johns Hopkins, followed by combined clinical training in pediatrics and clinical genetics at Johns Hopkins. Dr. Bjornsson joined the faculty at the McKusick-Nathans Institute of Genetic Medicine and the Department of Pediatrics in 2012, where he runs a clinic dedicated to patients with imprinting disorders and Mendelian disorders of the epigenetic machinery (Epigenetic and Chromatin Clinic). Dr. Bjornsson joined the Biomedical center at the University of Iceland in 2016. Dr. Bjornsson has received numerous awards for both clinical care and scientific work, including the Frank Coulson, Jr. Award for Clinical Excellence (2012), an NIH director’s Early Independence Award (2013), the Sir William Osler Young Investigator Award from the Interurban Clinical Club (2014) and the William K. Bowes Jr. Award in Medical Genetics (2014).
The Bjornsson laboratory focuses on understanding the pathophysiology of the Mendelian disorders of the epigenetic machinery, an emerging cause of genetically determined intellectual disability. Our work on a mouse model of Kabuki syndrome, a Mendelian disorder of the histone machinery, has revealed that manipulation of the epigenome may be a possible therapeutic approach for the intellectual disability seen in this disorder.