Autism Science Foundation Weekly Science Report

In the first of a two-part series on digestive health in ASD, Mia Kotikovski summarizes scientific information about what the complicated microbiome is, how it influences physical and psychiatric health, if it is altered in autism, and what causes it to be different in ASD. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8638778/ https://www.frontiersin.org/journals/cellular-and-infection-microbiology/articles/10.3389/fcimb.2022.915701/full https://pubmed.ncbi.nlm.nih.gov/32968276/ https://www.sciencedirect.com/science/article/abs/pii/S002432052300992X https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6079226/ https://childmind.org/article/autism-and-picky-eating/ https://www.choa.org/medical-services/gastroenterology/feeding-and-swallowing/multidisciplinary-feeding-program https://pubmed.ncbi.nlm.nih.gov/38242089/

New research points to a previously understudied but fascinating mechanism by which environmental factors may lead to autism: it’s called the “GABA/glutamate switch” which is a critical period in development when certain cells turn from turning on cell activity to turning them off. These environmental factors may delay this process leading to long term effects on the developing brain consistent with autism. While this data on the mechanism is brand new, the topic of the environment in autism was inspired by a recent effort at NIEHS which is developing an interactive database for people to access information about what environmental exposures have been studied and how in autism. https://www.niehs.nih.gov/news/events/aware https://www.pnas.org/doi/epub/10.1073/pnas.2406928121

This week, special correspondent Mia Kotikovski discusses challenges in getting emergency care for those with autism, what doctors and hospitals can do to ease the stressors associated with places like the ER. This is a huge issue for families as many “simple” ER visits for their autistic family members can cause such stress it provokes severe reactions, especially in those with sensory issues, intellectual disability or those who cannot express their pain. https://publications.aap.org/pediatrics/article/137/Supplement_2/S205/34011/Toward-Practice-Advancement-in-Emergency-Care-for

Instead of grouping together people with autism based on traditional severity scores, what if groupings were done based on functional outcome? Would this help better understand the broad spectrum of autism and why some people with autism are so different than others? Researchers at the University of Minnesota led by Kyle Sterrett, together with UCLA and UNC utilized a study that followed children with autism in the early 1990’s into their adulthood, in the 2020’s. They created and asked these families a set of questions (included in the manuscript below) to help identify levels of functioning in people with autism. This was done to help them and their families get the right support at right time. They found that these questions could differentiate people with Profound Autism based on things like level of independence and safety concerns. Dr. Sterrett talks with us on this week’s podcast to explain what they did and why it is so important. https://pubmed.ncbi.nlm.nih.gov/39031157

During sleep, your brain is still active. It is turning all those things you learned during the day into long term memories through connections between the thalamus, hippocampus and frontal cortex. What happens in Profound Autism? How does the brain work during sleep and how will this knowledge lead to better sleep in people? Are there interventions already underway that are being tested that target sleep brainwaves? It can be hard to measure sleep, so in Part 2 of the Profound Autism Series, Dr. Dimitrios Mylonas from Harvard talks about his study to use portable home brain activity monitors that have been adapted for use in Profound Autism and an intervention based on this brain activity is being tested in other disorders. His study is now enrolling and is all remote, if you are interested in participating please email him at: [email protected]

In part 1 of a 3 part series on Profound Autism, ASF interviews Emily Ferguson, PhD from @Stanford shares what she learned by asking parents and caregivers of Profound Autism “what do you need?” The short answer was: “There is No Help“. The responses were overwhelmingly focused on inclusion in any program or service, since they are normally excluded from traditional programs. They also call for better multidisciplinary medical management. Needs were associated with a number of factors. Why talk to caregivers? Their perspectives help identify both research and service priorities in the future. https://pubmed.ncbi.nlm.nih.gov/38963473