98%
921
2 minutes
20
Obstructive sleep apnea-hypopnea syndrome (OSAHS) is normally linked to cognitive and functional dysfunctions. In this study, we explored the resting-state functional connectivity (rsFC) in the default mode network (DMN) to show the mechanism of neurophysiology in patients with OSAHS. Resting-state structural and functional Magnetic Resonance Imaging data were obtained from sixteen male moderate-to- severe patients with untreated OSAHS and 15 male matched healthy control subjects. The rsFC in the DMN was analyzed between OSAHS and healthy controls by the CONN software. Compared with the controls, the rsFC showed a significant decrease in the the medial prefrontal cortex, anterior cingulate and posterior cingulate, and showed an increase in the left inferior parietal lobule in OSAHS patients. The results indicated that the OSAHS patients presented alternatives of rsFC in the DMN compared with the controls.
Download full-text PDF |
Source |
---|
Brain
September 2025
Sorbonne University, Inserm U1127, CNRS UMR7225, UM75, Paris Brain Institute, Movement Investigation and Therapeutics Team, 75013 Paris, France.
Adolescence is frequently called the second brain maturation period. In Tourette disorder (TD), the clinical trajectory of tics and associated psychiatric co-morbidities vary significantly across individuals during the transition from adolescents to adulthood. In this study, we aimed to identify patterns of resting-state functional connectivity that differentiate adolescents with TD from their neurotypical peers, and to monitor symptom-specific functional changes over time.
View Article and Find Full Text PDFRev Cardiovasc Med
August 2025
Cardiovascular Department, Xiyuan Hospital of China Academy of Chinese Medical Sciences, 100091 Beijing, China.
Background: While the invasive index of microcirculation resistance (IMR) remains the gold standard for diagnosing coronary microvascular dysfunction (CMD), its clinical adoption is limited by procedural complexity and cost. Angiography-based IMR (Angio-IMR), a computational angiography-based method, offers a promising alternative. This study evaluates the diagnostic efficacy of Angio-IMR for CMD detection in angina pectoris (AP).
View Article and Find Full Text PDFDiabetes Obes Metab
September 2025
Turku PET Centre, University of Turku, Turku, Finland.
Aims: Obesity is associated with increased insulin-stimulated brain glucose uptake (BGU) which is opposite to decreased GU observed in peripheral tissues. Increased BGU was shown to be reversed by weight loss and exercise training, but the mechanisms remain unknown. We investigated whether neuroinflammation (TSPO availability) and brain activity drive the obesity-associated increase in BGU and whether this increase is reversed by exercise training.
View Article and Find Full Text PDFComput Med Imaging Graph
August 2025
Beijing Huilongguan Hospital, Peking University Huilongguan Clinical Medical School, Beijing 100096, China. Electronic address:
Bipolar disorder (BD) is a debilitating mental illness characterized by significant mood swings, posing a substantial challenge for accurate diagnosis due to its clinical complexity. This paper presents CS2former, a novel approach leveraging a dual channel-spatial feature extraction module within a Transformer model to diagnose BD from resting-state functional MRI (Rs-fMRI) and T1-weighted MRI (T1w-MRI) data. CS2former employs a Channel-2D Spatial Feature Aggregation Module to decouple channel and spatial information from Rs-fMRI, while a Channel-3D Spatial Attention Module with Synchronized Attention Module (SAM) concurrently computes attention for T1w-MRI feature maps.
View Article and Find Full Text PDFMol Psychiatry
September 2025
Center for Depression, Anxiety and Stress Research, McLean Hospital, Belmont, MA, USA.
Dysregulated dopaminergic signaling has been implicated in the pathophysiology of major depressive disorder (MDD) and childhood sexual abuse (CSA), but inconsistencies abound. In a multimodal PET-functional MRI study, harnessing the highly selective tracer [C]altropane, we investigated dopamine transporter availability (DAT) and resting-state functional connectivity (rsFC) within reward-related regions among 112 unmedicated individuals (MDD: n = 37, MDD/CSA: n = 18; CSA no MDD: n = 14; controls: n = 43). Striatal DAT and seed-based rsFC were assessed in the dorsal and ventral striatum and the ventral tegmental area.
View Article and Find Full Text PDF