ArticleCommunications medicine2026
Immune-related gene expression links anxiety, depression, and pain outcomes in adolescence.
Article in Communications medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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24 authors.
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Abstract
backgroundChronic pain and internalising disorders such as anxiety and depression frequently co-occur during adolescence. Although prospective associations between internalising symptoms and later pain have been reported previously, the biological mechanisms underlying individual differences in this relationship remain poorly understood. Immune- and oxidative stress-related pathways, including the NRF2 gene, may contribute to such variability. This study investigated whether polymorphisms in the NRF2 gene (rs6721961 and rs35652124) are related to the association between anxiety and depression symptoms at age 14-15 and pain complaints two years later at age 16-17.
methodsData were drawn from the IMAGEN longitudinal study (N = 724). Anxiety and depression symptoms were assessed using the Development and Well-Being Assessment (DAWBA), and pain complaints were measured via the Children's Somatization Inventory (CSI). Genotyping was conducted for NRF2 SNPs rs6721961 and rs35652124. Regression analyses tested main effects, followed by genotype-stratified analyses.
resultsConsistent with previous literature, higher levels of anxiety and depression at age 14-15 predicted increased pain complaints at age 16-17. Carriers of the TG/TT genotype of rs6721961 had significantly lower anxiety scores and reported fewer pain complaints compared to those carrying the GG genotype of rs6721961. Notably, the association between anxiety and later pain was significant only among individuals with the GG genotype.
conclusionWhile replicating established associations between adolescent early internalising symptoms and later pain, this study suggests that genetic variation in NRF2 is related to the anxiety-pain association. Specifically, rs6721961 is associated with differences in susceptibility to pain among adolescents with elevated anxiety symptoms.
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