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Autism Spectrum Disorder01:19

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Autism spectrum disorder (ASD) is a neurodevelopmental condition marked by persistent deficits in social communication and interaction alongside restrictive and repetitive behaviors or interests. ASD is sometimes accompanied by intellectual impairment.
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
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Is Taurine a Biomarker in Autistic Spectrum Disorder?

Eunkyue Park1, Ira Cohen2, Maripaz Gonzalez2

  • 1Departments of Developmental Neurobiology, NY State Institute for Basic Research in Developmental Disabilities, 1050 Forest Hill Rd, Staten Island, NY, 10314, USA. Eunkyue.Park@opwdd.ny.gov.

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Summary
This summary is machine-generated.

Taurine levels in children with autistic spectrum disorder (ASD) did not significantly differ from siblings or parents. However, a subgroup of ASD children showed low taurine, suggesting it may be a biomarker for this group.

Keywords:
ASDAntioxidantMitochondrial dysfunctionTaurine

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Area of Science:

  • Biochemistry
  • Neuroscience
  • Pediatrics

Background:

  • Autistic spectrum disorder (ASD) etiology is complex, with genetic factors and oxidative stress/inflammation implicated.
  • Taurine, a sulfur-containing amino acid, possesses critical physiological functions, including antioxidant and anti-inflammatory activities.
  • Previous studies on taurine serum concentrations in ASD have yielded controversial results.

Purpose of the Study:

  • To investigate serum taurine concentrations in children with ASD, their siblings, and parents.
  • To explore the potential role of taurine as a biomarker in autistic spectrum disorder.
  • To address discrepancies in previous research regarding taurine levels in ASD.

Main Methods:

  • Sera were collected from 66 children with ASD, their unaffected siblings, parents, and normal adult controls.
  • Taurine concentrations were measured using high-performance liquid chromatography (HPLC) with phenylisothiocyanate labeling.
  • Statistical analysis was performed to compare taurine levels across different groups.

Main Results:

  • No significant differences in taurine concentrations were found between children with ASD and their unaffected siblings.
  • Taurine levels in children with ASD were not significantly different from their parents or adult controls.
  • A subset of 21 out of 66 children with ASD exhibited low taurine concentrations (<106 μM).

Conclusions:

  • While overall taurine levels do not distinguish children with ASD from controls, low taurine concentrations identify a subgroup.
  • Taurine's antioxidant properties warrant further investigation into mitochondrial function in ASD children with low taurine.
  • Taurine may serve as a potential biomarker for a specific subgroup of individuals with autistic spectrum disorder.