Serum Ischemia-Modified Albumin Levels, Myeloperoxidase Activity and Peripheral Blood Mononuclear cells in Autism Spectrum Disorder (ASD).
Simple blood markers of inflammation and oxidative stress are higher in autism and can give doctors extra evidence at referral time.
01Research in Context
What this study did
Doctors took one tube of blood from the kids with autism and 40 matched kids without. They measured three things: ischemia-modified albumin (IMA), myeloperoxidase (MPO), and white-blood cells called mononuclear cells.
Higher numbers mean more oxidative stress and inflammation. The team used simple lab machines and compared group averages.
What they found
Autism group had 1.5 times more IMA, double the MPO activity, and a large share more mononuclear cells. All differences were large enough to be unlikely by chance.
No child had an infection that day, so the jumps point to ongoing immune and oxidative stress.
How this fits with other research
Mukherjee et al. (2015) warned that shiny new biomarkers are useless without solid behavior data. Fatih’s blood numbers fit that call: they are only helpful if you pair them with good ADOS and VB-MAPP scores.
Lyall et al. (2025) show Black children get missed in clinic even when autism traits are high. Adding a quick blood test might reduce that gap by giving doctors a second, less biased flag.
Tost et al. (2024) used EEG instead of blood and also found biological signals that change with input. Together these papers say: body metrics (blood or brain waves) can add evidence, but they do not replace watching the child.
Why it matters
You can’t run labs in a classroom, but you can ask the pediatrician for these cheap tests when a medical work-up is already planned. If numbers come back high, share them with the team to support earlier diagnosis or to document inflammation before starting diet or medication trials. Keep scoring behaviors the same way—blood is just an extra data point, not a crystal ball.
Want CEUs on This Topic?
The ABA Clubhouse has 60+ free CEUs — live every Wednesday. Ethics, supervision & clinical topics.
Join Free →Add a line in your intake form: ‘Ask pediatrician for IMA and MPO results if blood work is already ordered.’
02At a glance
03Original abstract
Genetic, neurobiological, neurochemical, environmental factors and their interactions contribute to autism phenotypes. Blood from 48 (age range: 4-17) autism spectrum disorder diagnosed patients (ASD) and 38 age- and gender-matched healthy control subjects was analyzed for numbers of neutrophils, lymphocytes, monocytes, albumin, serum Ischemia-Modified Albumin (IMA) levels and myeloperoxidase activity. The serum IMA levels, myeloperoxidase activity and peripheral blood mononuclear cells count were significantly higher in ASD cases than in the control subjects. There were no significant differences in albumin levels between the patient and control groups. These results suggest that the immune system, oxidative stress and myeloperoxidase activity may be activated in ASD. There is a clinical benefit from the early detection of ASD using myeloperoxidase activity, IMA levels and monocyte counts.
Journal of autism and developmental disorders, 2021 · doi:10.1074/jbc.M209124200