Like ASD, the prevalence of ADHD has increased significantly in the past 2 decades. A critical analysis examines the factors, and many of them can be applicable to the increase in the rise of autism diagnoses: increased diagnosis in adults, looser diagnostic criteria, and untrained professionals making the diagnoses. While they are not of course the same, listen to some of their arguments and read their comments (link below) to see if you agree with my assessment.
Podcast: ADHD and ASD diagnosis both on the rise. Coincidence or commonalities?
Is there a specific “signature’ that make the autism brain unique? Can there be a common set of findings that certain gene expression goes up and another go down and where? And is it linked to behavior? This week, Dr. Michael Gandal at University of Pennsylvania (formerly UCLA) explains his recent findings that looks at the largest number of brain tissue samples so far from multiple brain regions to show a common up regulation of immune genes in the brain and a common down regulation of genes which control synapse formation and neuronal communication. It is most pronounced in areas involved in sensory processing of the brain. You can listen to the podcast today and read the whole paper here:
This week’s #ASFpodcast highlights a few articles from the Journal of Autism and Developmental Disorders this week which examined the tolerability and efficacy of online diagnostic procedures and interventions, from the perspective of both parents and clinicians. They seem to work about the same, although there were some caveats. For many reasons, online and Telehealth options are here to stay, and more needs to be done to improve their accuracy, acceptability, feasibility and effectiveness. These early studies are promising though, and lead the way to even more improvements to help make them a viable option for families in the future. Listen to the podcast here.
https://link.springer.com/article/10.1007/s10803-022-05435-z
https://link.springer.com/article/10.1007/s10803-022-05576-1
https://link.springer.com/article/10.1007/s10803-022-05554-7
https://link.springer.com/article/10.1007/s10803-022-05580-5
https://link.springer.com/article/10.1007/s10803-022-05607-x
This week’s podcast explores the question about whether or not it is beneficial or just confusing to teach your child with autism multiple languages, or suppress the use of more than one language at home. Turns out, being bilingual helps with executive functioning (or those with preserved executive functioning can be bilingual), language, and provides benefits in verbal IQ depending on SES. In other words, it’s not harmful, it can be helpful, and those who choose to speak two languages at home should continue to do so if they feel that it is enhancing their child’s learning. Listen to the podcast here and find more information in the links below:
https://pubmed.ncbi.nlm.nih.gov/35102760/
We normally focus on the function of brain cells that send signals to each other and communicate across small or long distances, which show differences in ASD. However, we rarely pay attention to the other cells in the brain. One type of cell, called the microglia, has been shown to not only help “pick up the garbage” of the brain, but also shape these connections that occur between brain cells. This week @DavidMenassa1 from @QueensCollegeOx, @UniofOxford, @unisouthampton published a paper in @Dev_Cell that looks at how microglia shape the brain during critical periods of development, and what this means for ASD. We are grateful he shares his expertise (in a beautiful accent) with us this week. Listen to the podcast here and check out the paper HERE.
More and more, psychiatrists are looking to psychedelic medication to help individuals who are resistant to other types of therapies. These include seizures, PTSD and depression. But can they help individuals with autism or ease autism-related problems or improve cognition? Two new studies on cannabis and one on ketamine are summarized in this week’s ASFpodcast. Promising, interesting, but not definitive. It’s a short podcast this week. You can listen to it here.
https://pubmed.ncbi.nlm.nih.gov/36085294/
https://pubmed.ncbi.nlm.nih.gov/35617670/
https://www.sciencedirect.com/science/article/pii/S2666247722000549?via%3Dihub
Outcome measures for clinical trials and understanding and determining gene x environment interactions have been two (of many) challenging questions for scientists. In the first study, we explain a new study that looks at the feasibility of three potential biomarkers that have the potential to look at presence of a diagnosis as well as effectiveness of an intervention. In the second half, we describe some new research that shows novel approaches to better understand the presence of an environmental factor with genetic influences, or a new method to describe them in different communities. You can read the studies at the links below and you can listen to the podcast here:
https://pubmed.ncbi.nlm.nih.gov/36000217/
Fieri said “Cooking with kids is not just about ingredients, recipes, and cooking. It’s about harnessing imagination, empowerment, and creativity.” This week’s podcast produced by ASF intern Mia Kotikovski from Stony Brook University explores how cooking can be not just fun for autistic individuals, but how it can build healthy habits in everyone. She discusses the scientific literature on why cooking improves eating habits and builds confidence. Listen to the podcast here.
Anxiety is common in people with autism – but is is different than other types of anxiety or similar? Is it part of the autism phenotype? When does it start and what triggers it? Two new studies which use a longitudinal design and examine the links between autism features, anxiety symptoms and brain development are summarized this week. It shows that the amygdala is important, that some features of anxiety are core to ASD and some are separate, and it is related to autism features like insistence on sameness. This has implications for how anxiety is diagnosed and treated in those with ASD. Listen to the podcast here.
https://pubmed.ncbi.nlm.nih.gov/35871413/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9116934/?report=printable
Thanks to Dr. Susan Kuo at Broad Research Institute and MIT, there is an analysis of 17,000 individuals with autism across 4 different studies that all looked at how developmental milestones emerged. The results show a great deal of diversity – across different studies, time, intellectual disability and genetic background. Different groups of people with autism have different experiences based on some commonalities. But all people with autism showed a delay in many milestones. They are important for understanding people with autism, changes across time in the diagnostic criteria, and their impact on later abilities. Listen to the podcast here.
New neurons can be generated in a dish (amazing in itself), and then these neurons studied to examine how they grow, expand, divide and connect. Using this technology, researchers are finding differences in different cell functions in different forms of autism. These differences are in proliferation, which is an increase in the number of cells, as well as the ability of those cells to signal to each other once they are formed. Some autism brains have too many cells, others do not proliferate as quickly as typical developing cells. These things are somewhat dependent on the genetic background which controls head size.
While these different forms of autism all have differences in proliferation, sometimes in different directions, they are all altered, regardless of the genes involved. So, is this one basic biological features that may help identify autism from the earliest points in development? Since they can be studied at any time in life, is this a new biomarker? Much needs to be studied but please listen to this week’s ASF podcast with Dr. Robert Connacher to learn more about the studies going on at Rutgers University to examine this issue.
https://www.sciencedirect.com/science/article/pii/S2213671122002089
We’ve heard a lot about social robots – do they help? One or two studies are not going to answer this, but a systematic review and meta analysis will! It turns out when you combined all the data, they do help in social abilities, but not other areas. This is how technology can help those with autism, especially technology which can be adapted to address the heterogeneity across the spectrum. And what about more subtle changes in the environment like light, sound, the built environment in classrooms and the home? Are there things that can be done that should be taken into account when these things are being built or modified? Again, a review article can help decipher all of the little studies that have been published over the year. Listen here for specific recommendations for builders, architects, and even you as you make your home more autism friendly.
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0269800