Brief report: "allergic symptoms" in children with Autism Spectrum Disorders. More than meets the eye?

Asimenia et al. (2011) wrote a think-piece, not an experiment. They asked: could some kids with autism look "allergic" because mast cells in their skin, gut, or brain are over-active?

The team reviewed scattered case reports. They built a theory that this mast-cell subgroup might respond to allergy medicines already on the shelf.

No new data were collected. The paper ends with a call to test mast-cell stabilizers in children who show hives, flushing, diarrhea, or sudden behavior spikes that mimic allergy.

Zhou et al. (2018) gave the idea its first numbers. They measured stool IgA and found higher levels in children with ASD, showing real gut immune activity where the 2011 paper only guessed.

Zou et al. (2020) added gut bacteria data. They saw an ASD-specific microbiome pattern that could trigger the same mast cells Asimenia talked about, linking gut bugs to immune cells.

Almehmadi et al. (2020) moved the story upward. They found higher miR-155p5, an inflammation signal, in the amygdala of children with ASD, giving a brain marker that might come from mast-cell chemicals traveling through blood.

If you work with a child who breaks out in rashes, sudden diarrhea, or unexplained agitation, think beyond behavior plans. Track flare timing, food, and seasonal changes. Ask the pediatrician about trialing a mast-cell stabilizer or low-histamine diet while you keep data on stereotypy, sleep, or SIB. The idea is still experimental, but side effects of these drugs are well known, so a short test can be low risk and high information.