This database contains 108 studies, archived under the term: "time factors"
Click here to filter this large number of results.
Cerebrospinal fluid biomarker supported diagnosis of Creutzfeldt-Jakob disease and rapid dementias: a longitudinal multicentre study over 10 years
Stoeck, K.,
Sanchez-Juan, P.,
Gawinecka, J.,
Green, A.,
Ladogana, A.,
Pocchiari, M.,
Sanchez-Valle, R.,
Mitrova, E.,
Sklaviadis, T.,
Kulczycki, J.,
Slivarichova, D.,
Saiz, A.,
Calero, M.,
Knight, R.,
Aguzzi, A.,
Laplanche, J.-L.,
Peoc'h, K.,
Schelzke, G.,
Karch, A.,
van Duijn, C. M.,
Zerr, I.
To date, cerebrospinal fluid analysis, particularly protein 14-3-3 testing, presents an important approach in the identification of Creutzfeldt-Jakob disease cases. However, one special point of criticism of 14-3-3 testing is the specificity in the differential diagnosis of rapid dementia. The constant observation of increased cerebrospinal fluid referrals in the national surveillance centres over the last […]
CSF α-synuclein concentrations do not fluctuate over hours and are not correlated to amyloid β in humans
Spies, Petra E.,
Slats, Diane,
Olde Rikkert, Marcel G. M.,
Tseng, Jack,
Claassen, Jurgen A. H. R.,
Verbeek, Marcel M.
Reports on the value of cerebrospinal fluid (CSF) α-synuclein as a biomarker for dementia with Lewy bodies and Parkinson disease are contradicting. This may be explained by fluctuating CSF α-synuclein concentrations over time. Such fluctuations have been suggested for CSF amyloid β concentrations. Furthermore, a physiological relationship between α-synuclein and amyloid β has been suggested […]
Effect of the timing of acetylcholinesterase inhibitor ingestion on sleep
Many patients with Alzheimer’s disease experience sleep disturbances, and donepezil is usually prescribed for night-time administration. However, increased acetylcholine is associated with cortical arousal. We evaluated whether subjective sleep quality differed according to the timing of medication administration. Ninety-two patients with mild to moderate Alzheimer’s disease who had taken donepezil at night (n=54) or galantamine […]
Donepezil treatment stabilizes functional connectivity during resting state and brain activity during memory encoding in Alzheimer’s disease
Solé-Padullés, Cristina,
Bartrés-Faz, David,
Lladó, Albert,
Bosch, Beatriz,
Peña-Gómez, Cleofé,
Castellví, Magdalena,
Rami, Lorena,
Bargalló, Nuria,
Sánchez-Valle, Raquel,
Molinuevo, José Luis
Previous studies with functional magnetic resonance imaging (fMRI) demonstrated a differential brain activity and connectivity after treatment with donepezil in Alzheimer’s disease (AD) when compared to healthy elders. Importantly however, there are no available studies where the placebo or control group included comparable AD patients relative to the treated groups. Fifteen patients recently diagnosed of […]
Efficacy of a medical food in mild Alzheimer’s disease: A randomized, controlled trial
Scheltens, Philip,
Kamphuis, Patrick J. G. H.,
Verhey, Frans R.J.,
Olde Rikkert, Marcel G. M.,
Wurtman, Richard J.,
Wilkinson, David,
Twisk, Jos W.R.,
Kurz, Alexander
Objective: To investigate the effect of a medical food on cognitive function in people with mild Alzheimer’s disease (AD).; Methods: A total of 225 drug-naïve AD patients participated in this randomized, double-blind controlled trial. Patients were randomized to active product, Souvenaid, or a control drink, taken once-daily for 12 weeks. Primary outcome measures were the […]
A multidimensional home-based care coordination intervention for elders with memory disorders: the maximizing independence at home (MIND) pilot randomized trial
Samus, Quincy M.,
Johnston, Deirdre,
Black, Betty S.,
Hess, Edward,
Lyman, Christopher,
Vavilikolanu, Amrita,
Pollutra, Jane,
Leoutsakos, Jeannie-Marie,
Gitlin, Laura N,
Rabins, Peter V.,
Lyketsos, Constantine G.
Objectives: To assess whether a dementia care coordination intervention delays time to transition from home and reduces unmet needs in elders with memory disorders.; Design: 18-month randomized controlled trial of 303 community-living elders.; Setting: 28 postal code areas of Baltimore, MD.; Participants: Age 70+ years, with a cognitive disorder, community-living, English-speaking, and having a study […]
Impact of smoking on cognitive decline in early old age: the Whitehall II cohort study
Sabia, Séverine,
Elbaz, Alexis,
Dugravot, Aline,
Head, Jenny,
Shipley, Martin,
Hagger-Johnson, Gareth,
Kivimaki, Mika,
Singh-Manoux, Archana
Context: Smoking is a possible risk factor for dementia, although its impact may have been underestimated in elderly populations because of the shorter life span of smokers.; Objective: To examine the association between smoking history and cognitive decline in the transition from midlife to old age.; Design: Cohort study.; Setting: The Whitehall II study. The […]
PRECREST: a phase II prevention and biomarker trial of creatine in at-risk Huntington disease
Rosas, H. D.,
Doros, G.,
Gevorkian, S.,
Malarick, K.,
Reuter, M.,
Coutu, J.-P.,
Triggs, T. D.,
Wilkens, P. J.,
Matson, W.,
Salat, D. H.,
Hersch, S. M.
Objective: To assess the safety and tolerability of high-dose creatine, the feasibility of enrolling premanifest and 50% at-risk subjects in a prevention trial, and the potential of cognitive, imaging, and blood markers.; Methods: Sixty-four eligible consenting participants were randomly allocated (1:1) to 15 g twice daily of creatine monohydrate or placebo for a 6-month double-blind […]