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http://dx.doi.org/10.1001/jama.2021.24168 | DOI Listing |
Microsc Res Tech
September 2025
Department of River Ecology, Helmholtz Centre for Environmental Research-UFZ, Magdeburg, Germany.
This review is intended as a guideline for beginners in confocal laser scanning microscopy. It combines basic theoretical concepts, such as fluorescence principles, resolution limits, and imaging parameters with practical guidance on sample preparation, staining strategies, and data acquisition using confocal microscopy. The aim is to combine technical and methodological aspects in order to provide a comprehensive and accessible introduction.
View Article and Find Full Text PDFAlzheimers Dement
September 2025
Alzheimer's Disease Convergence Research Center, Samsung Medical Center, Seoul, South Korea.
Introduction: We developed and validated age-related amyloid beta (Aβ) positron emission tomography (PET) trajectories using a statistical model in cognitively unimpaired (CU) individuals.
Methods: We analyzed 849 CU Korean and 521 CU non-Hispanic White (NHW) participants after propensity score matching. Aβ PET trajectories were modeled using the generalized additive model for location, scale, and shape (GAMLSS) based on baseline data and validated with longitudinal data.
Hum Brain Mapp
September 2025
Tri-Institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, and Emory University, Atlanta, Georgia, USA.
Investigating neuroimaging data to identify brain-based markers of mental illnesses has gained significant attention. Nevertheless, these endeavors encounter challenges arising from a reliance on symptoms and self-report assessments in making an initial diagnosis. The absence of biological data to delineate nosological categories hinders the provision of additional neurobiological insights into these disorders.
View Article and Find Full Text PDFStroke
September 2025
Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, China (H.Z., K.H., Q.G.).
Background: Poststroke cognitive impairment (PSCI) affects 30% to 50% of stroke survivors, severely impacting functional outcomes and quality of life. This study uses functional near-infrared spectroscopy (fNIRS) to assess task-evoked brain activation and its potential for stratifying the severity in patients with PSCI.
Method: A cross-sectional study was conducted at Nanchong Central Hospital between June 2023 and April 2024.
Stroke
September 2025
Department of Neurology, China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University.
Background: Risk stratification in posterior circulation ischemic stroke (PCIS) is challenging. Although the Posterior Circulation Ischemic Stroke Outcome Score (PCISOS) was developed to address this, its utility in minor PCIS and in identifying homogeneous populations for clinical trials or treatment-responsive subgroups remains uncertain.
Methods: CHANCE-2 (Clopidogrel in High-Risk Patients With Acute Non-disabling Cerebrovascular Events-II) was a multicenter, randomized trial that enrolled patients with minor stroke or high-risk transient ischemic attack who carried CYP2C19 loss-of-function alleles.