Oliver Broner Gets DNM1L Diagnosis After 15 Years, Prompting Foundation for 58 Cases
Updated
Updated · The Washington Post · Oct 3
Oliver Broner Gets DNM1L Diagnosis After 15 Years, Prompting Foundation for 58 Cases
1 articles · Updated · The Washington Post · Oct 3
Summary
15-year-old Oliver Broner finally received a definitive diagnosis after years of developmental delays, tremors and worsening mobility, with doctors concluding a rare DNM1L gene variant caused his condition.
A whole-exome test in 2020 had flagged the variant as of unknown significance, but Baylor researchers later linked the exact mutation to movement problems through matching patients and fruit-fly studies.
That evidence led clinicians to reclassify Oliver’s variant as likely pathogenic and remove earlier explanations including cerebral palsy, which had persisted despite a normal brain MRI.
Levodopa-carbidopa improved his walking and slowed decline, though he still uses an electric wheelchair for school travel and continues to have pain and intermittent cognitive slowing.
The Broners have since launched a DNM1L-focused foundation to fund research and connect families, documenting 58 cases worldwide as awareness of the disorder grows.