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- W2898093462 abstract "Converging evidence has implicated perturbed inflammatory signaling in alcohol use disorders (AUDs), and both animal and human studies suggest that alcohol-induced inflammatory signaling is mediated by Toll-Like Receptor 4 (TLR4). We previously demonstrated that TLR4 is hypermethylated in subjects with AUD compared to control individuals. Examining the relationship between TLR4 methylation and subjective alcohol responses could shed light on the role of TLR4 in promoting AUDs, thereby highlighting its potential as a treatment target.Significant interactions were demonstrated between Toll-like Receptor 4 (TLR4) methylation and human alcohol consumption patterns, such that greater methylation was associated with decreased positive and negative self-reported arousal during an alcohol infusion among light-to-moderate drinkers, but increased self-reported positive arousal and physiological arousal (i.e. systolic blood pressure) among heavy drinkers.Latent growth models were used to examine the relationship between TLR4 methylation and subjective responses and physiological measures of arousal during an alcohol infusion across 222 drinkers.We observed significant interactions of TLR4 methylation and alcohol use (drinks per week) on intercepts for self-report and physiological arousal measures. Specifically, light-to-moderate drinkers had positive associations between methylation and stimulation and tension (r's = 0.21-0.24), and heavy drinkers had negative associations (r's = -0.15 to -0.21). There were also significant interaction effects on changes in tension (β = 0.31, P < 0.01), systolic blood pressure (β = 0.74, P < 0.01) and marginal effects on stimulation (β = 0.15, P = 0.07) during the infusion, such that methylation was associated with decreased arousal among light-to-moderate drinkers (r's = -0.12 to -0.25) but stable or increased arousal among heavy drinkers (r's = 0.05-0.19).Findings suggest that the relationship between TLR4 methylation and subjective and physiological arousal during acute alcohol intoxication depends upon on self-reported alcohol use. These data demonstrate the influence of TLR4 on subjective responses to alcohol, thereby supporting the need for further research on its potential as a pharmacological treatment target." @default.
- W2898093462 created "2018-11-02" @default.
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- W2898093462 date "2018-07-04" @default.
- W2898093462 modified "2023-09-24" @default.
- W2898093462 title "Interactions between<i>TLR4</i>methylation and alcohol consumption on subjective responses to an alcohol infusion" @default.
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- W2898093462 doi "https://doi.org/10.1093/alcalc/agy046" @default.
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