The brain
Some social issues in DYRK1A model mice stem from faulty inhibitory circuits
Alterations in inhibitory circuits and difficulties in social recognition characterize mice missing one copy of DYRK1A, a gene linked to autism.
![A research image of a mouse hippocampus](https://www.thetransmitter.org/wp-content/uploads/2023/10/1200-DYRK1A-autism.webp)
Some social issues in DYRK1A model mice stem from faulty inhibitory circuits
Alterations in inhibitory circuits and difficulties in social recognition characterize mice missing one copy of DYRK1A, a gene linked to autism.
Method pinpoints cell-specific effects of autism-linked mutations
The approach, which combines CRISPR with single-cell analyses of organoids, suggests that intermediate progenitor cells are especially vulnerable to mutations associated with autism.
![Research image of cerebral organoids.](https://www.thetransmitter.org/wp-content/uploads/2023/10/1200-cell-specific-effects-autism-linked-mutations-lede.png)
Method pinpoints cell-specific effects of autism-linked mutations
The approach, which combines CRISPR with single-cell analyses of organoids, suggests that intermediate progenitor cells are especially vulnerable to mutations associated with autism.
UBE3A’s link to synaptic pruning bolstered by fly study
Increasing or reducing the levels of the UBE3A gene, which is associated with autism and autism-related syndromes, results in altered patterns of synaptic pruning — a process that snips away brain cell connections.
![Research image of presynapses on sensory neurons in fruit flies.](https://www.thetransmitter.org/wp-content/uploads/2023/09/1200-UBE3A-autism-synaptic-pruning-fly-study.png)
UBE3A’s link to synaptic pruning bolstered by fly study
Increasing or reducing the levels of the UBE3A gene, which is associated with autism and autism-related syndromes, results in altered patterns of synaptic pruning — a process that snips away brain cell connections.
Head size parts autism into two major subtypes
An imbalance in the number of excitatory neurons in early brain development may account for the difference.
![Research image of organoids in the forebrain.](https://www.thetransmitter.org/wp-content/uploads/2023/09/1200-head-size-autism-two-major-subtypes.png)
Head size parts autism into two major subtypes
An imbalance in the number of excitatory neurons in early brain development may account for the difference.
Magnetic stimulation for autism: Q&A with Xujun Duan
A new individualized approach to transcranial magnetic stimulation may one day be an effective treatment for social and communication difficulties, if the results from Duan’s small preliminary trial pan out.
![A patient receives transcranial magnetic stimulation.](https://www.thetransmitter.org/wp-content/uploads/2023/09/1200-transcranial-magnetic-stimulation-autism-1-1024x692.png)
Magnetic stimulation for autism: Q&A with Xujun Duan
A new individualized approach to transcranial magnetic stimulation may one day be an effective treatment for social and communication difficulties, if the results from Duan’s small preliminary trial pan out.
Skewed signaling in striatum may spawn repetitive behaviors
Synaptic changes in the brain region could drive a core trait of fragile X syndrome, a new mouse study suggests.
![Research image of neurons in mice.](https://www.thetransmitter.org/wp-content/uploads/2023/09/1200-striatum-signaling-repetitive-behaviors-autism.png)
Skewed signaling in striatum may spawn repetitive behaviors
Synaptic changes in the brain region could drive a core trait of fragile X syndrome, a new mouse study suggests.
Is excess brain fluid an early marker of autism?
Brain scans of hundreds of infants suggest that up to 80 percent of those with autism have unusual amounts of cerebrospinal fluid. Researchers are studying how this might contribute to the condition.
![A grid of four brain scans showing excess cerebrospinal fluid.](https://www.thetransmitter.org/wp-content/uploads/2023/08/1200-CSF-trends-autism-lede-final.png)
Is excess brain fluid an early marker of autism?
Brain scans of hundreds of infants suggest that up to 80 percent of those with autism have unusual amounts of cerebrospinal fluid. Researchers are studying how this might contribute to the condition.
New test taps nose pokes as a proxy for social motivation in mice
Over one hour, a particularly motivated mouse poked its nose 350 times into a hole in the test chamber in the hopes of meeting a playmate.
![Position heatmaps of mice performing a behavioral assay.](https://www.thetransmitter.org/wp-content/uploads/2023/08/1200-social-motivation-assay-autism.png)
New test taps nose pokes as a proxy for social motivation in mice
Over one hour, a particularly motivated mouse poked its nose 350 times into a hole in the test chamber in the hopes of meeting a playmate.
Abundant motor proteins disrupt cries in FOXP2 mice
Knocking down the gene that codes for the proteins normalizes the vocalizations.
![Research image of neurons.](https://www.thetransmitter.org/wp-content/uploads/2023/07/1200-lede-foxp2-autism.png)
Abundant motor proteins disrupt cries in FOXP2 mice
Knocking down the gene that codes for the proteins normalizes the vocalizations.
Change of heart and mind: Autism’s ties to cardiac defects
Children with congenital heart disease have an increased likelihood of autism. Why?
![Illustration of half of a brain on the left and half of a heart on the right](https://www.thetransmitter.org/wp-content/uploads/2023/07/1200-trends-heart-defects-autism-1.jpg)
Change of heart and mind: Autism’s ties to cardiac defects
Children with congenital heart disease have an increased likelihood of autism. Why?
Explore more from The Transmitter
New connectomes fly beyond the brain
Researchers are mapping the neurons in Drosophila’s ventral nerve cord, where the central nervous system meets the rest of the body.
![Research image of neurons in the fly’s ventral nerve cord.](https://www.thetransmitter.org/wp-content/uploads/2024/07/lede-motormodules-1200-1024x692.webp)
New connectomes fly beyond the brain
Researchers are mapping the neurons in Drosophila’s ventral nerve cord, where the central nervous system meets the rest of the body.
Building an autism research registry: Q&A with Tony Charman
A purpose-built database of participants who have shared genomic and behavioral data could give clinical trials a boost, Charman says.
![Illustration of researchers talking to laypeople amidst strands of DNA.](https://www.thetransmitter.org/wp-content/uploads/2024/07/1200_Charman-1024x687.webp)
Building an autism research registry: Q&A with Tony Charman
A purpose-built database of participants who have shared genomic and behavioral data could give clinical trials a boost, Charman says.
Cerebellar circuit may convert expected pain relief into real thing
The newly identified circuit taps into the brain’s opioid system to provide a top-down form of pain relief.
![](https://www.thetransmitter.org/wp-content/uploads/2024/07/paincircuit-1200-1024x692.webp)
Cerebellar circuit may convert expected pain relief into real thing
The newly identified circuit taps into the brain’s opioid system to provide a top-down form of pain relief.