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Associations of high-sensitivity C-reactive protein with neuropsychological outcomes and cerebral white matter hyperintensities in older adults at risk of dementia.
Brain Behav Immun Health
February 2025
Healthy Brain Ageing Program, Brain and Mind Centre, School of Psychology, Faculty of Science, University of Sydney, NSW, 2050, Australia.
Inflammation is becoming increasingly recognised as a core feature of dementia with evidence indicating that its role may vary and adapt across different stages of the neurodegenerative process. This study aimed to investigate whether the associations of high-sensitivity C-reactive protein (hs-CRP) with neuropsychological performance (verbal memory, executive function, processing speed) and cerebral white matter hyperintensities (WMHs) differed between older adults with subjective cognitive decline (SCD; = 179) and mild cognitive impairment (MCI; = 286). Fasting serum hs-CRP concentrations were grouped into low (<1.
View Article and Find Full Text PDFProsocial Intentions and Subsequent Cognitive Health: A Prospective Cohort Study.
J Gerontol B Psychol Sci Soc Sci
January 2025
Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA.
Objectives: Prosociality, defined as positive other-regarding intentions and behaviors, is a modifiable factor demonstrated to be associated with better mental, physical, and cognitive health in older adults. Prior studies have largely focused on individual prosocial behaviors, especially volunteering. This study examines whether prosocial intentions are associated with maintaining cognitive health over time.
View Article and Find Full Text PDFProtocol for a multi-domain scoping review to identify measures of decision-making ability in an ageing population.
BMJ Open
December 2024
Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
Introduction: Deficits in decision-making (DM) can lead to adverse outcomes across multiple domains such as financial management and medical care. By hindering such DM abilities, cognitive impairment (CI) often affects quality of life. Routine screening for CI, however, does not include systematic and comprehensive assessment of DM ability.
View Article and Find Full Text PDFTemporal Lobe Epilepsy Perturbs the Brain-Wide Excitation-Inhibition Balance: Associations with Microcircuit Organization, Clinical Parameters, and Cognitive Dysfunction.
Adv Sci (Weinh)
January 2025
McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, McGill University, Montreal, QC, H3A 2B4, Canada.
Excitation-inhibition (E/I) imbalance is theorized as a key mechanism in the pathophysiology of epilepsy, with ample research focusing on elucidating its cellular manifestations. However, few studies investigate E/I imbalance at the macroscale, whole-brain level, and its microcircuit-level mechanisms and clinical significance remain incompletely understood. Here, the Hurst exponent, an index of the E/I ratio, is computed from resting-state fMRI time series, and microcircuit parameters are simulated using biophysical models.
View Article and Find Full Text PDFDevelopmental Venous Anomaly: Its Impact on Brain Parenchymal Function as Revealed by FDG PET.
Clin Nucl Med
January 2025
Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT.
Developmental venous anomaly (DVA) is a common benign brain vascular malformation, typically asymptomatic, with intervention required when complications arise. We present the case of a 63-year-old man with mild cognitive decline whose brain FDG PET showed decreased uptake not only at the site of DVA, but in the extended surrounding parenchyma where MRI showed no parenchymal abnormalities. DVAs arise from developmental irregularities in the embryonic venous system, but likely affecting a greater extent of the surrounding parenchymal functions.
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