Simeon Boyadjiev Boyd, M.D.

Simeon Boyadjiev Boyd, M.D.Children’s Miracle Network Endowed Chair, Associate Professor, Department of Pediatrics, School of Medicine
UC Davis MIND Institute
2825 50th Street
Sacramento, CA 95817


Phone:  916-703-0446

Simeon Boyadjiev Boyd, M.D., is a medical geneticist and pediatrician, who joined UC Davis and the MIND Institute in June 2006, accepting a position in the Department of Pediatrics as Children’s Miracle Network Endowed Chair and Chief of the Section of Genetics. Prior to this appointment, Dr. Boyd was a member of the research faculty of the McKusick-Nathans Institute of Genetic Medicine at Johns Hopkins University. His prior achievements include identification of the gene responsible for Oculo-Dento-Digtal dysplasia; establishing a multi-institutional project focused on the analysis of craniosynostosis and bladder exstrophy; and the delineation of several novel dysmorphic syndromes. His laboratory is currently involved in studies of non-Mendelian (multifactorial) birth defects, using approaches that can be applied to the genetic analysis of other complex traits, i.e. autism, developmental delays, and learning disabilities. His ultimate goal is to identify genes and environmental factors contributing to the risk of these disorders. Dr. Boyd is sharing his expertise in analysis of complex traits with other MIND Institute researchers interested in these neurobehavioral phenotypes. Dr. Boyd’s laboratory is also involved in identification and characterization of genetic syndromes due to defects of the intracellular secretory pathway, and has recently identified and characterized one such syndrome, Cranio-Lenticulo-Sutural dysplasia. Using classical and reverse genetic approaches he plans to identify and characterize other human disorders caused by defects of this pathway.  In addition to his research activities, Dr. Boyd directs the clinical activities of the Section of Genetics that provides campus-wide clinical services. The clinical genetics service at the UC Davis Medical Center evaluates infants, children and adults who have or may be at risk for genetic conditions such as birth defects, chromosome abnormalities, mental retardation and developmental delays, muscular dystrophies, inherited skeletal conditions and metabolic disorders. Among the recent initiatives of the Section of Genetics is the initiation of Lysosomal Storage Disease Center that provides enzyme replacement infusion therapy for patients with storage disorders.


M.D., Medicine, Pediatric Medical Institute, St. Petersburg, Russia, 1985