[Changes in the functional connectivity of the thalamus in insomniac ED patients with yin deficiency and fire syndrome: An exploration based on functional MRI findings].

丘脑 医学 匹兹堡睡眠质量指数 额中回 失眠症 心理学 内科学 磁共振成像 精神科 放射科 睡眠质量
作者
Wenyu Wang,Yu Xu,Xiaoxin Ma,Yanyu Yang,Baohui Han,Z. Z. Zhang,Jianhuai Chen,Yun Chen
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期刊:PubMed 卷期号:28 (9): 822-830
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摘要

To investigate the changes of nocturnal erectile function and functional connectivity (FC) of bilateral thalami in insomniac ED patients with yin deficiency and fire syndrome.We enrolled 30 healthy controls and 87 ED patients with yin deficiency and fire syndrome, 41 with and the other 46 without insomnia. Using IIEF-5 and Pittsburgh Sleep Quality Index (PSQI), we evaluated the nocturnal erectile function and sleep quality of the patients and compared the clinical indicators between the two groups. Then we collected and preprocessed the MRI data on the cerebral function of the 15 ED patients with insomnia, another 15 without insomnia and the 30 healthy controls. With the thalamus as the region of interest (ROI), we calculated and compared the FC values of brain regions between the ED patients (with or without insomnia) and healthy controls, and corrected the results for multiple comparisons using the AlphaSim method.Compared with the patients without insomnia, those with insomnia had a lower duration of erectile episode and tumescence and rigidity activity units in the tip of the penis. With the left thalamus as the ROI, the right middle frontal gyrus and inferior parietal were shown to be the differential brain regions among the three groups. Compared with the healthy controls, the patients without insomnia showed decreased FC values between the left thalamus and left orbital part of the middle frontal gyrus, insula, putamen and right thalamus, while those with insomnia exhibited decreased FC values between the left thalamus and bilateral middle frontal gyri, inferior parietal, calcarine fissure, parahippocampal gyrus, left superior parietal gyrus, right precuneus and inferior temporal gyrus, and they also exhibited decreased FC values between the left thalamus and middle frontal gyrus in comparison with those without insomnia. With the right thalamus as the ROI, the left medial superior frontal gyrus, bilateral calcarine fissure and right thalamus were found to be the differential brain regions among the three groups. Compared with the healthy controls, the patients without insomnia showed decreased FC values between the right thalamus (including the right thalamus itself) and left medial orbital superior frontal gyrus, superior temporal gyrus (temporal pole), middle temporal gyrus, insula and right orbital part of the inferior frontal gyrus, while those with insomnia manifested decreased FC values between the right thalamus and middle frontal gyrus, inferior parietal, left superior parietal gyrus and calcarine fissure, and they also manifested increased FC values between the right thalamus and medial superior frontal gyrus, and decreased FC values between the right thalamus and left calcarine fissure in comparison with those without insomnia.ED patients with insomnia have more serious clinical symptoms, with FC changes in the thalamocortical loop, which might be the pathological mechanisms of ED with insomnia.

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