View clinical trials related to Cognitive Dysfunction.
Filter by:This study will provide insight into whether a nutritional supplement, nicotinamide riboside (NR), improves memory and brain blood flow in older adults with low memory abilities. Overall, this project has the potential to identify a novel, safe and cost-effective strategy for decreasing age-related memory loss.
The aim of this study is to better understand the nature of the cognitive decline in Progressive Supranuclear Palsy, the time of its development and the relation with the other cardinal features of the disease.
The purpose of this study is to determine whether patients experience a better quality of life when they have received education about coping strategies for cognitive dysfunction.
Dancing is a complex sensorimotor rhythmic activity that integrates cognitive, physical, and social components and is applicable to seniors with various fitness levels. Despite its popularity, there is a paucity of studies that have systematically examined the role of dancing in preventing or delaying cognitive decline in older adults at high risk for Alzheimer's disease and related dementias. This preliminary randomized clinical trial will help provide the evidence base to develop a definitive full-scale trial to support or refute prescription of social dancing to prevent further cognitive decline in older adults at high risk of Alzheimer's disease and related dementia.
Optimizing Function and Independence Through iHI-FIVES aims to implement the iHI-FIVES caregiver skills training program at 8 VAMC sites in a stepped- wedge design and evaluate caregiver and patient outcomes before and after the program is implemented, as well as the efficacy of a usual vs enhanced implementation design.
The primary objective of this study is to demonstrate that individuals with low short-term practice effects (STPE) on cognitive testing are more likely to be identified as "positive" on amyloid imaging than individuals with high STPE. STPE may also inform us about other AD-related biomarkers, including hippocampal volumes, functional connectivity, and APOE status. By realizing the aims of this pragmatic study, we hope to be able to offer more economical and efficient screening of potential participants for clinical trials, which would reduce participant burden and financial costs.
Alzheimer's disease (AD) is the most common type of dementia, accounting for 50-75% of the estimated 47 million people with dementia worldwide. The amyloid cascade hypothesis of AD proposes that amyloid-β (Aβ) peptide accumulation in the brain, caused by an imbalance between Aβ production and clearance, is the initiating factor of a cascade ultimately leading to dementia. Aβ peptides are generated from sequential cleavage of the amyloid precursor protein (APP), including Aβ40 and Aβ42. Aβ40 is the predominant variant (90%) among the secreted Aβ forms and although Aβ42 is more hydrophobic and prone to aggregate, and Aβ42 oligomers are regarded to be the most neurotoxic species, Aβ40 can also produce highly toxic diffusible aggregates, which can be prevented in vitro by specific anti-Aβ40 antibodies. Several studies have proposed that a high concentration of Aβ40 in the brain distinguishes patients with AD from those who have senile plaques but are cognitively normal, pointing to the importance of Aβ40 in the onset of dementia. In keeping with this, previous studies have demonstrated that specific anti-Aβ40 antibodies label NFTs in the entorhinal cortex and the hippocampus of AD brains, and that these do not co-localize with tau NFTs, suggesting the presence of degenerating neuronal populations filled with C-terminal fragments of Aβx-40. In addition, Aβ40 is the main component of amyloid deposition around cerebral arteries causing cerebral amyloid angiopathy (CAA), which has a prevalence of about 80-90% in patients with AD (for more information see Lacosta et al. Alzheimer's Research & Therapy (2018) 10:12 DOI 10.1186/s13195-018-0340-8). Considering those previous results suggesting that strategies targeting Aβ40 could represent novel disease-modifying therapies, we have developed ABvac40, the first active vaccine targeting the C-terminal end of the Aβ40 peptide. The purpose of this Phase II study is to confirm in patients with a-MCI or vm-AD the level of safety and tolerability obtained in the ABvac40 Phase I clinical trial in patients with mm-AD. In addition, the study is aimed to better characterize the immune response elicited by ABvac40 and to explore its effects on AD biomarkers.
The aim of the entire project was to perform a translation and cultural adaptation of the Addenbrooke's Cognitive Examination - III (ACE-III), adhering to the Translation and Cultural Adaptation of Patient Reported Outcomes Measures—Principles of Good Practice, in order to make it available to German clinicians. Part of the translation process is the cognitive debriefing which will be performed as a survey which rates the applicability of every single item as well as of the entire Addenbrooke's Cognitive Examination - III tool.
Extended bouts of periodic mastication and intermittent energy restriction (IER) may improve cognitive performance in the context of adult hippocampal neurogenesis in an ageing population. A randomised controlled parallel design trial will determine the impact of a 3 month IER diet (2 consecutive days of very low calorie diet and 5 days of normal eating) and a mastication intervention (1 piece of gum chewed for 10 minutes 3 times a day) in comparison to a control on neurogenesis-associated cognitive measures and circulating levels of the anti-ageing protein Klotho.
The primary aim of the study is - in a prospective controlled design - to examine whether treatment-induced decreases in testosterone acts as a mechanism of cancer-related cognitive impairment (CRCI) in testicular and prostate cancer patients. Secondary aims are 1) to explore whether decreases in testosterone interacts with increasing age to cause more severe CRCI in older patients, 2) to explore underlying neurophysiological (brain morphology) mechanisms of CRCI, and 3) to evaluate selected genetic variants as possible moderators of CRCI.