David Ledbetter is chief clinical officer of Dascena, a personalized medicine company.
David Ledbetter
Chief clinical officer
Dascena
From this contributor
There are no autism-specific genes, just brain genes
There is not yet a single example of a gene that, when mutated, increases the likelihood of autism but not of other neurodevelopmental conditions, including intellectual disability.
There are no autism-specific genes, just brain genes
By
David Ledbetter, Scott Myers
23 March 2021 | 5 min read
Developmental disorders should be viewed as continuum
Intellectual disability, autism, epilepsy and schizophrenia should be considered part of a spectrum of developmental brain dysfunction, says David Ledbetter.
Developmental disorders should be viewed as continuum
By
David Ledbetter
6 May 2013 | 3 min read
Explore more from The Transmitter
Polarized cortical organoids mimic the brain’s regional organization
The organoids show region-specific gene-expression changes that match those observed during fetal development.
Polarized cortical organoids mimic the brain’s regional organization
The organoids show region-specific gene-expression changes that match those observed during fetal development.
By
Holly Barker
24 September 2026 | 4 min read
Prefrontal cortex has three transcriptomic acts across human lifespan, new atlas suggests
Various genes show distinct exits and entrances with age in the open-source dataset, the largest of its kind to date.
Prefrontal cortex has three transcriptomic acts across human lifespan, new atlas suggests
Various genes show distinct exits and entrances with age in the open-source dataset, the largest of its kind to date.
By
Siddhant Pusdekar
23 September 2026 | 5 min read
Microglia scoop out garbage from inside neurons
Through a newly identified process called skoupocytosis, neurons recruit the immune cells to remove cellular waste they find hard to deal with themselves.
Microglia scoop out garbage from inside neurons
Through a newly identified process called skoupocytosis, neurons recruit the immune cells to remove cellular waste they find hard to deal with themselves.
By
Siddhant Pusdekar
23 September 2026 | 0 min watch