دورية أكاديمية
HPA Axis Responsiveness Associates with Central Serotonin Transporter Availability in Human Obesity and Non-Obesity Controls
| العنوان: | HPA Axis Responsiveness Associates with Central Serotonin Transporter Availability in Human Obesity and Non-Obesity Controls |
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| المؤلفون: | Christian Schinke, Michael Rullmann, Julia Luthardt, Mandy Drabe, Elisa Preller, Georg A. Becker, Marianne Patt, Ralf Regenthal, Franziska Zientek, Osama Sabri, Florian Then Bergh, Swen Hesse |
| المصدر: | Brain Sciences, Vol 12, Iss 11, p 1430 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Neurosciences. Biological psychiatry. Neuropsychiatry |
| مصطلحات موضوعية: | obesity, hypothalamic–pituitary–adrenal axis (HPA), serotonin transporter (5-HTT), positron emission tomography (PET), reward, Neurosciences. Biological psychiatry. Neuropsychiatry, RC321-571 |
| الوصف: | Background: Alterations of hypothalamic–pituitary–adrenal (HPA) axis activity and serotonergic signaling are implicated in the pathogenesis of human obesity and may contribute to its metabolic and mental complications. The association of these systems has not been investigated in human obesity. Objective: To investigate the relation of HPA responsiveness and serotonin transporter (5-HTT) availability in otherwise healthy individuals with obesity class II or III (OB) compared to non-obesity controls (NO). Study participants: Twenty-eight OB (21 females; age 36.6 ± 10.6 years; body mass index (BMI) 41.2 ± 5.1 kg/m2) were compared to 12 healthy NO (8 females; age 35.8 ± 7.4 years; BMI 22.4 ± 2.3 kg/m2), matched for age and sex. Methods: HPA axis responsiveness was investigated using the combined dexamethasone/corticotropin-releasing hormone (dex/CRH) test, and curve indicators were derived for cortisol and adrenocorticotropic hormone (ACTH). The 5-HTT selective tracer [11C]DASB was applied, and parametric images of the binding potentials (BPND) were calculated using the multilinear reference tissue model and evaluated by atlas-based volume of interest (VOI) analysis. The self-questionnaires of behavioral inhibition system/behavioral activation system (BIS/BAS) with subscales drive, fun-seeking and reward were assessed. Results: OB showed significant positive correlations of ACTH curve parameters with overall 5-HTT BPND (ACTHAUC: r = 0.39, p = 0.04) and 5-HTT BPND of the caudate nucleus (ACTHAUC: r = 0.54, p = 0.003). In NO, cortisol indicators correlated significantly with BPND in the hippocampus (cortisolAUC: r = 0.59, p = 0.04). In OB, BAS reward was inversely associated with the ACTHAUC (r = −0.49, p = 0.009). Conclusion: The present study supports a serotonergic-neuroendocrine association, which regionally differs between OB and NO. In OB, areas processing emotion and reward seem to be in-volved. The finding of a serotonergic HPA correlation may have implications for other diseases with dysregulated stress axis responsiveness, and for potential pharmacologic interven-tions. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 12111430 2076-3425 |
| العلاقة: | https://www.mdpi.com/2076-3425/12/11/1430Test; https://doaj.org/toc/2076-3425Test |
| DOI: | 10.3390/brainsci12111430 |
| الوصول الحر: | https://doaj.org/article/3846da0798974021a51035f2a1e05f62Test |
| رقم الانضمام: | edsdoj.3846da0798974021a51035f2a1e05f62 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 12111430 20763425 |
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| DOI: | 10.3390/brainsci12111430 |