| A rare endocrine disease with characteristics of the triad of adult-onset diabetes mellitus, progressive hearing loss (usually presenting in the first decade of life and principally of low to moderate frequencies), and/or juvenile-onset optic atrophy. Psychiatric (i.e. anxiety, depression, hallucinations) and sleep disorders, the only neurologic abnormalities observed in this disease, have been reported in rare cases. There is evidence this disease is caused by heterozygous mutation in the WFS1 gene on chromosome 4p16. |
