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Rare Disease Week, the FDA, mortality in autism, trajectories and subcategories

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This week’s podcast summarizes some highlights in scientific research and includes a recognition of Rare Disease Week and actions taken by the FDA to ease the criteria for evaluating genetic therapies for rare genetic disorders, the best study to date on the mortality in autism, genetic prediction of outcome in individuals with a diagnosis, and Uta Frith’s commentary on the concept of “spectrum”.

https://pubmed.ncbi.nlm.nih.gov/41773580

https://pubmed.ncbi.nlm.nih.gov/41651809

https://pubmed.ncbi.nlm.nih.gov/41661606

https://archive.ph/fPscR

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Health Care for Autistic Individuals During Transition Age

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This week we talk to Dr. Emily Hotez from UCLA, (and a sibling to an autistic adult) who has focused her research on reducing stigma and marginalization, which will ultimately improve research participation to increase scientifically valid options for families. She also works on a nationwide project to improve health outcomes in autistic individuals, from birth through adulthood. Her new project focuses on chronic stress on physical health in adolescents with autism. She explains the focus of her research, the study and why it is important, and other work she is doing to improve health care in those with a diagnosis and their family members. You can read more about her study here: https://uclasharelab.org/

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Genetic pathways leading to autism

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A landmark study that uses brain organoids from different people with different genes associated with autism showed that the different genes act as roads that go on different journeys to the same destination. This will be an enormously important discovery for identifying targets to treat different autism symptoms across different genetic causes of autism and understand the diversity of symptoms. Also, the new Interagency Autism Coordinating Committee was announced and there is not much breadth of perspectives.

https://www.nature.com/articles/s41586-025-10047-5

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Wildfires, air pollution, autism and the EPA response

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Air pollution, specifically one part of air pollution called PM 2.5 (named for the size of the crud in the air pollution) has been linked to autism. It’s also been tied to cancer, heart disease, asthma, obesity, and premature births. Air pollution typically comes from industrial sources and car exhaust, but it can also be the result of smoke from wildfires. Four new studies this week link air pollution exposure during pregnancy to autism. The Environmental Protection Agency has responded by easing penalties on producers of this air pollution, making it much easier for everyone to be exposed to high levels of air pollution throughout their lives. This week’s podcast reviews the new evidence and examines new policies which will increase the burden of air pollution to families.

https://pubmed.ncbi.nlm.nih.gov/41547316

https://pubmed.ncbi.nlm.nih.gov/41443491

https://pubmed.ncbi.nlm.nih.gov/41271133

https://pubmed.ncbi.nlm.nih.gov/41557972

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For this podcast, trans means transdiagnostic

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On this week’s podcast, we present new research summarizing how autism is part of a larger spectrum of neuropsychiatric disorders and issues. There are issues that people with autism experience that are not unique to autism; they are seen in people with ADHD, schizophrenia, bipolar disorder and depression. This is what is meant by “transdiagnostic”. These things include core autism features, co-morbid health problems, and can partially be explained by genetics. While autism is a unique condition, understanding how autism is placed in the wider spectrum of disorders and conditions will speed up discoveries in treatments and supports.

Click to access mentalizing-impairments-across-11-psychiatric-conditions-a-transdiagnostic-systematic-review-and-network-meta-analysis-of-tasks-with-static-illustrations.pdf

https://www.nature.com/articles/s41586-025-09820-3

https://pubmed.ncbi.nlm.nih.gov/41416939

https://pubmed.ncbi.nlm.nih.gov/41257798

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The 2025 Year in Review

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This year was a VERY eventful year for autism. If you want to hear a highlight of the good news, the great science that was discovered and the ideas developed to help families with autism, listen to this podcast or read the summary here: https://autismsciencefoundation.org/2025-year-in-review/. In summary: more precise subtypes of autism have been discovered and validated using biological markers, explanation for sex differences, new precision medicines for those with known genetic causes of autism, and new research studying the effects of early intervention. It was a great year for science, even with all the challenges from DOGE.

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The Immune Taboo

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The immune system is critically involved in autism. Of course, there are still a lot of questions to answer, particularly whether dysregulation of the immune system is the cause or a consequence of autism among others. But it is not studied enough. This week’s podcast includes new studies that examine the role of the immune system in autism, and outlines the different theories of how the immune system is involved in ASD.

https://pubmed.ncbi.nlm.nih.gov/41345879

https://www.sciencedirect.com/science/article/pii/S0889159125004490?via%3Dihub

https://www.nature.com/articles/s41380-025-03349-7

https://pubmed.ncbi.nlm.nih.gov/41125877

https://www.nature.com/articles/s41386-025-02162-8

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The different flavors of early intervention

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You may have heard terms in early intervention like “NDBI” or “Early Start Denver Model” and wondered if there was a difference in efficacy behind all these flavors of toddler interventions. On this week’s podcast, we speak to Dr. Giacomo Vivanti from @DrexelAutism, who combined data from 4 of these interventions across 700 children to see if they found similar or different effects of each protocol. This group of scientists also examined these interventions on the development of spoken language. The results reinforced: 1. the earlier the better when it comes to early intervention, 2. duration of the intervention matters, and 3. focusing on imitation may be a key to helping toddlers talk.

https://pubmed.ncbi.nlm.nih.gov/41264359

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The importance of cognitive ability in autism traits, and how to measure it in those with IDD

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Everyone knows cognitive ability is critical for understanding autism, however, how does it affect developmental trajectories of autism traits, and can it be accurately measured in those with severe intellectual disabilities? We discuss. Plus, more evidence that tylenol doees not cause autism.

https://pubmed.ncbi.nlm.nih.gov/41207796

https://www.aaidd.org/docs/default-source/prepressarticles/which-score-for-what-operationalizing-standardized-cognitive-test-performance-for-the-assessment-of-change.pdf?sfvrsn=42950021_0

https://pubmed.ncbi.nlm.nih.gov/33211814

https://pubmed.ncbi.nlm.nih.gov/41203924

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Can COVID cause autism?

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This week, a new study suggests a causal link not between Tylenol, but to COVID, which can cause a fever. There is clearly more research needed, but the findings are consistent with research on the link between maternal illness and autism. Also, it’s well known that genetics plays a role in how symptoms of autism emerge and present. Can genetics also explain why some people are diagnosed later? What about cannabis exposure during pregnancy? Is it a factor in a later diagnosis? For more information, listen to this week’s ASF podcast.

https://pubmed.ncbi.nlm.nih.gov/41016606

https://www.nature.com/articles/s41586-025-09542-6

https://journals.sagepub.com/doi/10.1177/13623613251355257?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub%20%200pubmed

https://journals.lww.com/greenjournal/abstract/9900/neurodevelopmental_outcomes_of_3_year_old_children.1392.aspx