The Journal of nutrition · 2024
Differential One-Carbon Metabolites among Children with Autism Spectrum Disorder: A Case-Control Study.
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Wang Tianqi, He Wennan, Chen Yun, Gou Yuxun, Ma Yu, Du Xiaonan, Wang Yi, Yan Weili, Zhou Hao
Аннотация
BACKGROUND: Driven by the complex multifactorial etiopathogenesis of autism spectrum disorder (ASD), a growing interest surrounds the disturbance in folate-dependent one-carbon metabolism (OCM) in the pathology of ASD, whereas the evidence remained inconclusive.
OBJECTIVES: The study aims to investigate the association of OCM metabolism and ASD and characterize differential OCM metabolites among children with ASD.
METHODS: Plasma OCM metabolites were investigated in 59 children with ASD and 40 neurotypical children using ultra-performance liquid chromatography tandem mass spectrometry technology. Differences (significance level < 0.001) were tested in each OCM metabolite between cases and controls. Multivariable models were also performed after adjusting for covariates.
RESULTS: Ten out of 22 examined OCM metabolites were significantly different in children with ASD, compared with neurotypical controls. Specifically, S-adenosylmethionine (SAM), oxidized glutathione (GSSG), and glutathione (GSH) levels were increased, whereas S-adenosylhomocysteine (SAH), choline, glycine, L-serine, cystathionine, L-cysteine, and taurine levels were significantly decreased. Children with ASD showed significantly higher SAM/SAH ratio (3.87 ± 0.93 compared with 2.00 ± 0.76, P = 0.0001) and lower GSH/GSSG ratio [0.58 (0.46, 0.81) compared with 1.71 (0.93, 2.99)] compared with the neurotypical controls. Potential interactive effects between SAM/SAH ratio, taurine, L-serine, and gastrointestinal syndromes were further observed.
CONCLUSIONS: OCM disturbance was observed among children with ASD, particularly in methionine methylation and trans-sulfuration pathways. The findings add valuable insights into the mechanisms underlying ASD and the potential of ameliorating OCM as a promising therapeutic of ASD, which warrant further validation.
OBJECTIVES: The study aims to investigate the association of OCM metabolism and ASD and characterize differential OCM metabolites among children with ASD.
METHODS: Plasma OCM metabolites were investigated in 59 children with ASD and 40 neurotypical children using ultra-performance liquid chromatography tandem mass spectrometry technology. Differences (significance level < 0.001) were tested in each OCM metabolite between cases and controls. Multivariable models were also performed after adjusting for covariates.
RESULTS: Ten out of 22 examined OCM metabolites were significantly different in children with ASD, compared with neurotypical controls. Specifically, S-adenosylmethionine (SAM), oxidized glutathione (GSSG), and glutathione (GSH) levels were increased, whereas S-adenosylhomocysteine (SAH), choline, glycine, L-serine, cystathionine, L-cysteine, and taurine levels were significantly decreased. Children with ASD showed significantly higher SAM/SAH ratio (3.87 ± 0.93 compared with 2.00 ± 0.76, P = 0.0001) and lower GSH/GSSG ratio [0.58 (0.46, 0.81) compared with 1.71 (0.93, 2.99)] compared with the neurotypical controls. Potential interactive effects between SAM/SAH ratio, taurine, L-serine, and gastrointestinal syndromes were further observed.
CONCLUSIONS: OCM disturbance was observed among children with ASD, particularly in methionine methylation and trans-sulfuration pathways. The findings add valuable insights into the mechanisms underlying ASD and the potential of ameliorating OCM as a promising therapeutic of ASD, which warrant further validation.