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• W4383313611 abstract "Abstract Sexual dysfunction is prominent in Major Depressive Disorder (MDD) and affects women with depression more than men. Patients with MDD relative to healthy controls have lower brain levels of the serotonin 4 receptor (5-HT 4 R), which is expressed with high density in the striatum, i.e. a key hub of the reward system. Reduced sexual desire is putatively related to disturbed reward processing and may index anhedonia in MDD. Here, we aim to illuminate plausible underlying neurobiology of sexual dysfunction in unmedicated patients with MDD. We map associations between 5-HT 4 R binding, as imaged with [ 11 C]SB207145 PET, in the striatum, and self-reported sexual function. We also evaluate if pre-treatment sexual desire score predicts 8-week treatment outcome in women. From the NeuroPharm study, we include 85 untreated MDD patients (71% women) who underwent eight weeks of antidepressant drug treatment. In the mixed sex group, we find no difference in 5-HT 4 R binding between patients with sexual dysfunction vs normal sexual function. However, in women we find lower 5-HT 4 R binding in the sexual dysfunctional group compared to women with normal sexual function (β = −0.36, 95%CI[−0.62:−0.09], p = 0.009) as well as a positive association between sexual desire and 5-HT 4 R binding (β = 0.07, 95%CI [0.02:0.13], p = 0.012). Sexual desire at baseline do not predict treatment outcome (ROC curve AUC = 52%[36%:67%]) in women. Taken together, we find evidence for a positive association between sexual desire and striatal 5-HT 4 R availability in women with depression. Interestingly, this raises the question if direct 5-HT 4 R agonism can target reduced sexual desire or anhedonia in MDD." @default.
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• W4383313611 date "2023-07-06" @default.
• W4383313611 modified "2023-10-18" @default.
• W4383313611 title "Sexual health and serotonin 4 receptor brain binding in unmedicated patients with depression—a NeuroPharm study" @default.
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• W4383313611 doi "https://doi.org/10.1038/s41398-023-02551-x" @default.
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• W4383313611 hasPublicationYear "2023" @default.
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