Bryan Winchester is an Emeritus Professor of Biochemistry at the UCL Great Ormond Street Institute of Child Health, University College London. He has taught Biochemistry and carried out research on various aspects of lysosomal storage diseases at London University for over 40 years. In particular he worked closely with the Enzyme Diagnostic Laboratory at Great Ormond Street Hospital from 1988-2006. He was chairman of the European Study Group on Lysosomal Diseases from 1997-2007. On retirement in 2006 he became a Trustee of the British MPS Society and co-edited an introductory book on lysosomal storage diseases.