Medical genetics in Singapore

Area of Science:

• Human genetics research and clinical applications in Singapore.
• Advancements in clinical and molecular genetics over decades.

Background:

• Clinical genetics and karyotyping established in Singapore in the early 1960s.
• Glucose-6-phosphate dehydrogenase (G6PD) deficiency identified as a major cause of newborn jaundice (kernicterus).
• Early screening programs significantly reduced kernicterus incidence.

Purpose of the Study:

• To review the evolution and scope of human genetics research and clinical services in Singapore.
• To highlight key discoveries and advancements in genetic disease diagnosis and management.
• To showcase progress in molecular genetics and its applications.

Main Methods:

• Historical review of clinical genetics services and research initiatives.
• Description of diagnostic techniques including karyotyping and DNA amplification (Polymerase Chain Reaction - PCR).
• Summary of research areas including genetic disorders and population genetics.

Main Results:

• Successful implementation of newborn screening for G6PD deficiency, virtually eliminating kernicterus since the 1970s.
• Discovery and characterization of numerous G6PD variants.
• Established molecular genetics research for alpha- and beta-thalassemias, Duchenne muscular dystrophy, hemophilia, retinoblastoma, neurofibromatosis, leukemias, and lymphoid malignancies.
• Successful application of PCR for tuberculosis diagnosis.
• Significant publications on the molecular genetics of coronary artery disease and population genetics.

Conclusions:

• Singapore has made substantial progress in human genetics, from early clinical interventions to advanced molecular diagnostics.
• Genetic screening and molecular research have significantly improved health outcomes for common genetic disorders.
• Ongoing research continues to expand the understanding and management of genetic diseases and population health.