Improving Antioxidant Capacity in Children With Autism: A Randomized, Double-Blind Controlled Study With...

Area of Science:

• Biochemistry
• Neuroscience
• Nutritional Science

Background:

• Children with autism spectrum disorder (ASD) often exhibit lower glutathione levels, a key antioxidant.
• Previous nutritional interventions targeting glutathione in ASD have yielded mixed results.
• Cysteine-rich whey protein isolate (CRWP) is a potent glutathione precursor, previously shown to be safe and effective in other conditions.

Purpose of the Study:

• To investigate the effectiveness of a 90-day CRWP intervention in preschool children with ASD.
• To examine correlations between improvements in glutathione levels and behavioral changes in ASD.
• To assess the impact of CRWP on various ASD-related behavioral scales.

Main Methods:

• A double-blind, randomized, placebo-controlled trial involving 46 preschool children (ages 3-5) with ASD.
• Daily administration of CRWP or a placebo (rice protein) for 90 days.
• Assessment of glutathione levels and ASD behaviors using validated scales (e.g., VABS-II, CARS, PLS).

Main Results:

• The CRWP group showed significant improvements in the Vineland Adaptive Behavior Scale, 2nd edition (VABS-II) composite score (p=0.03) and several domain scores.
• Significant increases in glutathione levels were observed in the CRWP group compared to placebo (p=0.04).
• Older age and higher baseline glutathione levels were associated with better behavioral response in the CRWP group.

Conclusions:

• CRWP nutritional intervention is effective in improving glutathione levels in children with ASD.
• CRWP supplementation demonstrated significant positive effects on specific adaptive and behavioral measures in children with ASD.
• Further research is warranted to confirm these findings and explore the therapeutic potential of CRWP in ASD management.