ArticlemedRxiv : the preprint server for health sciences2025
IMPAIRED OLFACTORY FUNCTION IN SUBSTANCE USE DISORDER.
Article in medRxiv : the preprint server for health sciences, 2025. 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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Abstract
The sense of smell plays a key role in guiding motivated behavior, and olfactory function is impaired in clinical populations with dysfunctional approach-avoidance behavior, including major depressive and alcohol use disorder (AUD). However, whether olfactory impairments are also observed in individuals with substance use disorders (SUDs) other than AUD is currently unknown. This study aimed to evaluate the relationship between olfactory function and SUDs. We tested olfaction in 40 individuals with substance use disorders (SUDs) other than AUD using the Sniffin' Sticks odor identification and olfactory threshold tests, versus 112 controls. Group differences were assessed with linear regression models, with diagnosis (SUD vs. controls) as a predictor, controlling for age, sex and smoking. Across a diverse range of substances used, individuals with SUDs had significantly lower
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