(285) Examining Neurobiological Factors Associated With Erectile Dysfunction Severity in a Neurologically Healthy Cohort
Notice bibliographique
Résumé
Abstract Introduction Erectile Dysfunction (ED) is becoming increasingly recognized as a potential marker of chronic medical conditions. Recent research has examined the association between ED and Parkinson’s disease. In fact, recent findings indicate that men with ED have upwards of a fourfold higher risk of developing Parkinson’s disease compared to those without a diagnosis of ED. Objective Our research investigates associations between self-reported ED severity and neurobiological factors, including measures of cognitive function and neuroimaging of dopaminergic integrity. Methods We performed a retrospective analysis of 93 male research participants with ED extracted from an observational cohort study of aging and Parkinson’s disease biomarkers. Though some patients experienced some age-related mild cognitive changes, all participants were classified as clinically neurologically healthy. Patients received cognitive testing through the Montreal Cognitive Assessment (MoCA), with scores ranging from 0-30. Neuroimaging of the bilateral caudate and putamen, components of the striatum implicated in Parkinson’s disease pathology and dopaminergic binding, was measured through dopamine transporter SPECT imaging (DaTScan) binding ratios. ED was self-reported using questions 22-23 on the Scales for Outcomes in Parkinson’s Disease – Autonomic Dysfunction (SCOPA-AUT). Question 22 stated “In the past month, have you been impotent (unable to have or maintain an erection?)” and question 23 stated “In the past month, how often have you been unable to ejaculate?”. SCOPA-AUT scores ranged from 0 (sometimes) to 3 (often) and were averaged across both questions. Patients taking dopaminergic Parkinson’s disease medications or PDE5 inhibitors at baseline were excluded due to potential confounding. Due to violations of normality assumption, numerical associations utilized an age-adjusted partial spearman correlation coefficient. Descriptive statistics are displayed as median (IQR). Results Of the 93 selected participants, one individual was excluded due to incomplete neuroimaging DaTScan data. Therefore, 92 patients were included in our analysis. The median age of participants was 67.3 years (61.4 – 73.0) and the median MoCA score was 27.2 (26.0, 28.7) which represents minimal cognitive impairment. Age-adjusted spearmen correlation coefficient showed no association between MoCA measured cognitive performance and ED severity (r = -0.116, p = 0.275). Age-adjusted associations of striatal DaTScan showed a significant, mild relationship between ED severity and both right caudate dopamine binding ratios (r = 0.236, p=0.0242) and left putamen dopamine binding ratios (r = 0.262, p = 0.0121). However, associations between ED severity and both left caudate (r = 0.150, p = 0.155) and right putamen (r = 0.143, p = 0.176) dopamine binding ratios did not reach statistical significance. Conclusions Although no association was observed between ED severity and cognitive function, greater ED severity was significantly associated with increased striatal dopaminergic binding. This positive, age-adjusted association may reflect a compensatory dopaminergic response similar to that seen in the early stages of Parkinson’s disease. Overall, our findings suggest that ED could serve as a potential marker of central dopaminergic and autonomic alterations, even in the absence of clinically evident neurological disease. Disclosure No
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,002 | 0,003 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,000 | 0,001 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».