Abstract
A 52-year-old woman with early-onset diabetes mellitus, severe diabetic retinopathy, and a family history of a dominant inheritance pattern was referred to our hospital. Direct sequencing revealed a novel mutation in the HNF-4α gene (R244Q). The position of the mutation in the amino-acid sequence of the gene is well conserved among species and transcriptional activity of the mutant gene was significantly reduced. Therefore, a diagnosis of maturity-onset diabetes of the young (MODY)-1 was made. Genetic testing enabled early diagnosis of diabetes in the patient's 20-year-old daughter, which we consider to be important for the prevention of diabetic complications.
Original language | English |
---|---|
Pages (from-to) | 848-852 |
Number of pages | 5 |
Journal | Internal Medicine |
Volume | 41 |
Issue number | 10 |
DOIs | |
State | Published - 1 Oct 2002 |
Externally published | Yes |
Keywords
- Direct sequencing
- Genetic counseling
- Genetic testing
- Transcriptional activity
- β-cell function