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Study Links DNA Methylation to Infant Pupillary Reflex

1/9/2026

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Summary

Story summary

A study on DNA methylation and the infant pupillary light reflex (PLR) identified four significant differentially methylated probes linked to PLR latency in infants aged 14 to 24 months.
PLR amplitude did not show significant associations.
Genes related to PLR amplitude were noted in autism databases.
The findings suggest epigenetic signatures may inform neurodevelopmental diversity and support early intervention, while larger cohorts are needed to validate these results.

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Story summary

A study on DNA methylation and the infant pupillary light reflex (PLR) identified four significant differentially methylated probes linked to PLR latency in infants aged 14 to 24 months.
PLR amplitude did not show significant associations.
Genes related to PLR amplitude were noted in autism databases.
The findings suggest epigenetic signatures may inform neurodevelopmental diversity and support early intervention, while larger cohorts are needed to validate these results.