Alterations in plasma cytokine levels in chinese children with autism spectrum disorder.
Chinese kids with autism carry higher blood levels of three inflammation markers that echo in Japanese adults, hinting at a lifelong immune signature.
01Research in Context
What this study did
Scientists drew blood from Chinese children with autism and from typically developing peers.
They measured three immune proteins in the plasma: Eotaxin, TGF-β1, and TNF-α.
The team also checked if boys and girls showed different patterns.
What they found
All three proteins were higher in the autism group.
The rise followed sex-specific patterns, meaning the jump looked different in boys versus girls.
How this fits with other research
Yamauchi et al. (2021) saw the same TNF-α jump, but in Japanese adults with high-functioning autism.
That match tells us the TNF-α signal holds across age and ability levels.
Aldred et al. (2003) hunted plasma amino acids instead of cytokines and still found odd immune chemistry in autism families.
Together the papers paint a picture: autism often rides along with quiet, long-term inflammation you can spot in a blood tube.
Why it matters
You can’t treat cytokines with DTT, but you can add immune questions to your intake.
Ask about food refusal, sleep cycles, or mystery fevers.
If parents say yes, loop the pediatrician in and track flare-ups before problem behavior spikes.
A quick blood draw may soon help confirm your clinical hunch and show families the biology behind the behavior.
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02At a glance
03Original abstract
UNLABELLED: Genetic alterations, together with environmental risk factors during infancy and childhood, contribute significantly to the etiology of autism spectrum disorder (ASD), a heterogeneous neurodevelopmental condition characterized by impairments in social interaction and restricted, repetitive behaviors. Mounting evidence points to a critical contribution of immunological risk factors to the development of ASD. By affecting multiple neurodevelopmental processes, immune system dysfunction could act as a point of convergence between genetics and environmental factors in ASD. Previous studies have shown altered cytokine levels in individuals with ASD, but research in Asian populations are limited. Here, we measured the plasma levels of 11 candidate cytokines in ASD and typically developing (TD) children. The cohort included 41 TD children and 87 children with ASD, aged 1-6 years. We found that as compared to the TD group, children with ASD had higher plasma levels of Eotaxin, TGF-β1 and TNF-α. The increase in TGF-β1 level was most significant in males, while the increase in Eotaxin was most significant in females. Eotaxin level negatively correlated with the social affect score (SA) in ADOS, while TNF-α level positively correlated with total development quotient (DQ), measured using GMDS. These pilot findings suggest potentially important roles of Eotaxin, TGF-β1 and TNF-α in ASD in the Chinese population. Autism Res 2018, 11: 989-999. © 2018 International Society for Autism Research, Wiley Periodicals, Inc. LAY SUMMARY: Alteration of immune system function is an important risk factor for autism spectrum disorder (ASD). Here we found that the levels of cytokines, including Eotaxin, TGF-β1 and TNF-α, are elevated in Chinese children with ASD, as compared to typically developing children. The change in TGF-β1 level was most prominent in boys, while that of Eotaxin was more significant in girls. These results provide evidence for changes in cytokine profile in Chinese children with ASD.
Autism research : official journal of the International Society for Autism Research, 2018 · doi:10.1002/aur.1940