Dr. Hans Bjornsson

Dr. Hans Bjornsson's picture


Johns Hopkins University

Professional Directory entry

Epigenetic modifications offer one plausible way that the environment (both external and internal) can directly affect gene expression. Epigenetic modifications have also been known to minimize disease states by buffering the impact of genetic variants (i.e. Agouti viable yellow mouse model). Our laboratory is interested in developing epigenetic treatment strategies to minimize disease mortality and morbidity caused by genetic mutations.

Director of Epigenetic and Chromatin Clinic, Assistant Professor of Pediatrics
John Hopkins University


Johns Hopkins University, School of Medicine
733 N Broadway, BRB435
Baltimore, Maryland 21205
United States
Phone: 410-502-0056
Email Address: 


Dr. Bjornsson MD. Ph.D. did his graduate work under the supervision of Andrew P. Feinberg, a leader in field of epigenetics. Dr. Bjornsson then joined the combined program in pediatrics and human genetics at Johns Hopkins. During his residency training Dr. Bjornsson worked with Dr. Hal Dietz, a leader in the field of developing therapeutic options for patients with Mendelian disorders. In 2012 Dr. Bjornsson become an assistant professor of pediatrics and genetics at the McKusick-Nathans Institute of Genetic Medicine. He has received multiple awards while at Johns Hopkins both for research and for clinical care. Dr. Bjornsson founded the Epigenetic and Chromatin Clinic in 2012, which is dedicated to the care of patients with epigenetic disorders and disorders of the epigenetic machinery.

To book appointments in the Epigenetic and Chromatin Clinic please call our Genetics office (410-955-3071) or have PMD fax referral (410-614-9246). We often try to schedule an appointment with neuropsychology on same date (and immunology if needed).


Kabuki syndrome.

Mendelian disorders of the histone machinery.

Therapeutic development.

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