Larger volume and different functional connectivity of the amygdala in women with premenstrual syndrome

• Published in: European radiology Vol. 28; no. 5; pp. 1900 - 1908
• Main Authors: Deng, Demao, Pang, Yong, Duan, Gaoxiong, Liu, Huimei, Liao, Hai, Liu, Peng, Liu, Yanfei, Li, Shasha, Chen, Wenfu, Wen, Danhong, Xuan, Chunmei, Li, Min
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.05.2018; Springer Nature B.V
• Subjects: Aberration; Amygdala; Amygdala - diagnostic imaging; Brain Mapping - methods; Correlation analysis; Cortex (cingulate); Cortex (frontal); Cortex (temporal); Diagnostic Radiology; Female; Functional magnetic resonance imaging; Gyrus Cinguli - diagnostic imaging; Gyrus Cinguli - physiopathology; Humans; Image resolution; Imaging; Internal Medicine; Interventional Radiology; Magnetic Resonance; Magnetic resonance imaging; Magnetic Resonance Imaging - methods; Medicine; Medicine & Public Health; Menstrual cycle; Neuroimaging; Neuroradiology; NMR; Nuclear magnetic resonance; Organ Size; Patients; PMS; Precentral gyrus; Prefrontal cortex; Premenstrual syndrome; Premenstrual Syndrome - diagnosis; Premenstrual Syndrome - physiopathology; Radiology; Structure-function relationships; Ultrasound; Young Adult; Neuroimaging; Brain; Premenstrual syndrome; Amygdala; Magnetic resonance imaging
• ISSN: 0938-7994; 1432-1084; 1432-1084
• DOI: 10.1007/s00330-017-5206-0

Objectives To assess structural and functional changes of the amygdala due to premenstrual syndrome (PMS) using magnetic resonance imaging (MRI). Methods Twenty PMS patients and 21 healthy control (HC) subjects underwent a 6-min resting-state fMRI scan during the luteal phase as well as scanning high-resolution T1-weighted images. Subcortical amygdala-related volume and functional connectivity (FC) were estimated between the two groups. Each subject completed a daily record of severity of problems (DRSP) to measure the severity of clinical symptoms. Results Greater bilateral amygdalae volumes were found in PMS patients compared with HC subjects, and PMS patients had increased FC between the amygdala and certain regions of the frontal cortex (e.g. medial prefrontal cortex (mPFC), anterior cingulate cortex (ACC), right precentral gyrus), the right temporal pole and the insula, as well as decreased FC between the bilateral amygdalae and the right orbitofrontal cortex and right hippocampus. The strength of FC between the right amygdala and right precentral gyrus, left ACC and left mPFC were significantly and positively correlated with DRSP scores in PMS patients. Conclusions Our findings may improve our understanding of the neural mechanisms involved in PMS. Key Points • Functional and structural MRI used to explore amygdala in PMS patients . • Aberrant amygdala structural and functional connectivity were found in PMS patients . • Amygdala strength FC was positively correlated with individual clinical symptom scores .