腺体阴茎电刺激调节大脑活动和功能连接在终身早泄功能性MRI揭示的终身早泄
Yijun Bai1,2, Futao Chen1, Cong Long1
1Department of Radiology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, No. 321 Zhongshan Road, Nanjing, 210008, China.
Scientific reports
|July 2, 2025
概括
与正常对照组相比,早泄 (PE) 患者表现出大脑奖励系统活动的改变. 下额和补充运动区域的功能性连接性变化显示出PE的差异化潜力.
科学领域:
- 神经成像是一种神经成像.
- 多巴胺激素奖励系统
- 性医学性医学性医学性医学
背景情况:
- 早泄 (PE) 是一种常见的性功能障碍.
- 多巴胺激素奖励系统在性功能和射精控制中起着至关重要的作用.
- 了解PE的神经生物学基础对于开发有效治疗方法至关重要.
研究的目的:
- 为了比较PE患者和正常对照者 (NCs) 之间的多巴胺激应奖励系统中的大脑激活.
- 通过基于任务和静止状态的fMRI来调查功能连接 (FC) 和中心度 (DC) 的差异.
- 探索fMRI测量和PE疾病严重程度之间的相关性.
主要方法:
- 使用功能性磁共振成像 (fMRI),包括基于任务的 (腺体阴茎电刺激) 和静止状态扫描.
- 分析包括β值,中心度 (DC) 和功能连接 (FC).
- 用皮尔森相关性来评估fMRI指标与疾病严重程度之间的关系.
主要成果:
- 在这个任务中,PE患者在双边丘脑和下额前环中显示出明显更高的β值.
- 休息状态的fMRI显示,PE患者的双边补充运动区域 (SMA) 的DC较高,双边前皮质的DC较低.
- 在刺激后观察到右下额头和双边SMA之间增强的FC,以及双边前和双边丘脑之间降低的FC. 这些连接模式显示出高的诊断准确性 (AUC=0.83和0.82),用于区分PE与NC.
结论:
- 在多巴胺激素奖励系统内,大脑激活和功能连接的改变与早泄有关.
- 特定的FC模式,特别是涉及下额头,SMA,前骨和丘脑,可以有效地将PE患者与正常对照区分开来.
- 这些发现为PE提供了有价值的神经生物学见解,并建议潜在的成像生物标志物用于诊断.
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