CDKL5 gene; cerebrospinal fluid; drug combo for fragile X syndrome

Here is a roundup of autism-related news and research spotted around the web for the week of 16 September.

  • Mice missing one or both copies of the gene CDKL5, which causes CDKL5 deficiency disorder in people, display autism-like traits as early as 2 weeks of age. Autism Research
  • Sensorimotor skills in infants predict self-regulation skills at 12 to 15 months old, and self-regulation skills in infants with autistic siblings predict autism traits at age 3. Developmental Science
  • Autism-linked genes can converge on downstream targets, and convergent effects are more prominent in mature glutamatergic neurons than in neural progenitor cells or GABA-ergic neurons, according to a preprint. bioRxiv
  • Microglia grown from an autistic person’s stem cells and missing the autism-linked gene NRXN1 actively release the proinflammatory cytokine IL-6 and fail to form functional neuronal networks. Brain, Behavior, and Immunity
Research image of microglia.
Uncurbed growth: Microglia missing the NRXN1 gene (right panel) proliferate more (pink stain) than control cells (left panel).
  • Some alterations in resting-state electroencephalograms are shared between people with autism and those with fragile X syndrome, whereas others distinguish the conditions. Journal of Neurodevelopmental Disorders
  • “The complexity of the 16p12.1 deletion and other genomic disorders calls for personalized medicine approaches that fully account for individual-level phenotypic presentation, family history, and genome-wide variant profile towards counseling, management, and potential treatment.” medRxiv
  • The composition of cerebrospinal fluid in embryonic mice is altered in the maternal immune activation mouse model of autism. Journal of Biological Chemistry
  • Combination therapy with lovastatin and minocycline decrease neuronal excitability in people with fragile X syndrome, according to a clinical trial. Spectrum covered earlier results with this drug combination in 2018. Autism Research

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