}Opioid Response Linked to Key Gene, Study Finds

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Genetic Factor Influences opioid Response, Study finds

February 4, 2026

A‍ new study led by researchers at the University of Calgary has identified a⁢ genetic variation that may explain why‍ some individuals experience notable pain relief from opioid medications, while others find them ineffective or suffer adverse effects. The research,⁤ published in the journal Neuron, centers on the RUNX1 gene and its impact on opioid response, including pain⁣ reduction,⁣ dosage requirements, and the risk of withdrawal⁢ and dependence.

The Role of the RUNX1 Gene

The study revealed that variations within the RUNX1 gene are linked too differing responses to opioids. RUNX1 is a gene crucial for the growth and function of ⁢various tissues,including the brain. Researchers found that specific variants of this gene correlated with a need⁣ for higher opioid dosages, while others were ⁤associated with more severe withdrawal symptoms [[1]].

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