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The helion charge radius from laser spectroscopy of muonic helium-3 ions

2 months 2 weeks ago
Science, Volume 388, Issue 6749, Page 854-858, May 2025.
Karsten Schuhmann, Luis M. P. Fernandes, François Nez, Marwan Abdou Ahmed, Fernando D. Amaro, Pedro Amaro, François Biraben, Tzu-Ling Chen, Daniel S. Covita, Andreas J. Dax, Marc Diepold, Beatrice Franke, Sandrine Galtier, Andrea L. Gouvea, Johannes…

Resting-state fMRI study on male patients with Parkinson's disease and with sexual dysfunction

2 months 2 weeks ago
Sexual dysfunction (SD) is a common non-motor symptom in Parkinson's disease (PD) that substantially reduces patients' quality of life. However, the underlying neural mechanisms of SD in PD remain poorly understood. This study aimed to investigate the role of functional abnormalities in brain regions with dopaminergic innervation in male PD patients with SD, using resting-state functional magnetic resonance imaging (rs-fMRI). A total of 34 male PD patients were enrolled. The bilateral caudate,...
Kunpeng Qin

White matter fractional anisotropy decreases precede hyperintensities in Alzheimer's disease

2 months 2 weeks ago
The associations of β-amyloid (Aβ) and tau deposition with white matter (WM) degeneration in Alzheimer's disease (AD) remain inadequately elucidated. We investigate baseline and longitudinal changes of microstructural fractional anisotropy (FA) and macrostructural white matter hyperintensities (WMHs) and their relationships with Aβ and tau positron emission tomography (PET) and vascular risk factors in different Aβ/tau stages defined by PET imaging. Lower levels and faster decline rates of FA...
Pan Sun