We present a test-retest dataset of resting-state fMRI data obtained in 80 cognitively normal elderly volunteers enrolled in the "Pre-symptomatic Evaluation of Novel or Experimental Treatments for Alzheimer's Disease" (PREVENT-AD) Cohort. Subjects with a family history of Alzheimer's disease in first-degree relatives were recruited as part of an on-going double blind randomized clinical trial of Naproxen or placebo. Two pairs of scans were acquired ~3 months apart, allowing the assessment of both intra- and inter-session reliability, with the possible caveat of treatment effects as a source of inter-session variation. Using the NeuroImaging Analysis Kit (NIAK), we report on the standard quality of co-registration and motion parameters of the data, and assess their validity based on the spatial distribution of seed-based connectivity maps as well as intra- and inter-session reliability metrics in the default-mode network. This resource, released publicly as sample UM1 of the Consortium for Reliability and Reproducibility (CoRR), will benefit future studies focusing on the preclinical period preceding the appearance of dementia in Alzheimer's disease.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4603392 | PMC |
| http://dx.doi.org/10.1038/sdata.2015.43 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
The neuroprotective effects of cholecystokinin in the brain: antioxidant, anti-inflammatory, cognition, and synaptic plasticity.
Rev Neurosci
January 2025
School of Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China.
Cholecystokinin (CCK) is a major neuropeptide in the brain that functions as a neurotransmitter, hormone, and growth factor. The peptide and its receptors are widely expressed in the brain. CCK signaling modulates synaptic plasticity and can improve or impair memory formation, depending on the brain areas studies and the receptor subtype activated.
View Article and Find Full Text PDFThe role of α-tocopherol in the prevention and treatment of Alzheimer's disease.
Mol Cell Biochem
January 2025
Department of Clinical Biochemistry and Laboratory Diagnostics, Institute of Medical Sciences, University of Opole, Oleska 48, 45-052, Opole, Poland.
Scientific reports from various areas of the world indicate the potential role of tocopherols (vitamin E) in particular α-tocopherol in the prevention and therapy of Alzheimer's disease. The current phenomenon is related to the growing global awareness of eating habits and is also determined by the need to develop the prevention, management and therapy of Alzheimer's disease. This article is a review of current research on the action of the active form of vitamin E-α-tocopherol and its impact on the development and course of Alzheimer's disease.
View Article and Find Full Text PDFAn Educational Intervention to Promote Central Nervous System-Active Deprescribing in Dementia: A Pilot Study.
Drugs Aging
January 2025
Center for Clinical Management Research, VA Ann Arbor Healthcare System, NCRC 016-308E, 2800 Plymouth Rd, Ann Arbor, MI, 48109, USA.
Background: Central nervous system (CNS)-active polypharmacy (defined as concurrent exposure to three or more antidepressant, antipsychotic, antiseizure, benzodiazepine, opioid, or nonbenzodiazepine benzodiazepine receptor agonists) is associated with significant potential harms in persons living with dementia (PLWD).We conducted a pilot trial to assess a patient nudge intervention's implementation feasibility and preliminary effectiveness to prompt deprescribing conversations between PLWD experiencing CNS-active polypharmacy and their primary care clinicians ("clinicians").
Methods: We used the electronic health record to identify PLWD prescribed CNS-active polypharmacy in primary care clinics from two health systems.
The potential link between the development of Alzheimer's disease and osteoporosis.
Biogerontology
January 2025
Department of Physiology, School of Medicine, University of Louisville, Louisville, KY, 40202, USA.
Alzheimer's disease (AD) and osteoporosis (OP) pose distinct but interconnected health challenges, both significantly impacting the aging population. AD, a neurodegenerative disorder characterized by memory impairment and cognitive decline, is primarily associated with the accumulation of abnormally folded amyloid beta (Aβ) peptides and neurofibrillary tangles in the brain. OP, a skeletal disorder marked by low bone mineral density, involves dysregulation of bone remodeling and is associated with an increased risk of fractures.
View Article and Find Full Text PDFNanoparticle Interactions with the Blood Brain Barrier: Insights from Drosophila and Implications for Human Astrocyte Targeted Therapies.
Neurochem Res
January 2025
Drosophila and Nanoscience Research Laboratory, Department of Applied Genetics, Karnatak University, Dharwad, Karnataka, 580003, India.
This review explores the intricate connections between Drosophila models and the human blood-brain barrier (BBB) with nanoparticle-based approaches for neurological treatment. Drosophila serves as a powerful model organism due to its evolutionary conservation of key biological processes, particularly in the context of the BBB, which is formed by glial cells that share structural and functional similarities with mammalian endothelial cells. Recent advancements in nanoparticle technology have highlighted their potential for effective drug delivery across the BBB, utilizing mechanisms such as passive diffusion, receptor-mediated transcytosis, and carrier-mediated transport.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!