270 results match your criteria: "France Centre Mémoire de Ressources et de Recherche[Affiliation]"

Purpose: Harmonizing variables for constructs measured differently across studies is essential for comparing, combining, and generalizing results. We developed and fielded a brief survey to harmonize Likert and continuous versions of measures for two constructs, self-rated health and self-rated memory, for use in studies of French older adults.

Methods: We recruited 300 participants from a French memory clinic in 2023 to answer both the Likert and continuous versions of self-rated health and self-rated memory questions.

View Article and Find Full Text PDF

Neuropsychological profile of French adults with early-treated phenylketonuria: a multicenter study.

J Neurol

December 2024

Service de Médecine Interne, Centre de Référence Des Maladies Héréditaires du Métabolisme, UMR INSERM 1253 « iBraiN », Université de Tours, CHU de Tours, Tours, France.

Background And Objective: Adult patients with early-treated phenylketonuria (AwET-PKU) may present some subtle neurocognitive deficits. The aim of the study was to investigate 1) neurocognitive functions in a large group of AwET-PKU 2) the influence of plasma phenylalanine (Phe).

Methods: Participants: 187 AwET-PKU (classic PKU [cPKU] 81%, mild PKU [mPKU] 14%, and mild persistent hyperphenylalaninemia [MPH] 5%).

View Article and Find Full Text PDF

The voice of depression: speech features as biomarkers for major depressive disorder.

BMC Psychiatry

November 2024

Department of Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen University, Aachen, Germany.

Background: Psychiatry faces a challenge due to the lack of objective biomarkers, as current assessments are based on subjective evaluations. Automated speech analysis shows promise in detecting symptom severity in depressed patients. This project aimed to identify discriminating speech features between patients with major depressive disorder (MDD) and healthy controls (HCs) by examining associations with symptom severity measures.

View Article and Find Full Text PDF
Article Synopsis
  • * Concerns are raised about purely biological definitions being used in clinical settings, especially since many biomarker-positive but cognitively normal individuals may never develop symptoms, complicating diagnosis and patient understanding.
  • * The authors advocate for a combined clinical-biological definition of AD that accommodates at-risk and presymptomatic stages, emphasizing the need for caution in diagnosing AD without fully understanding the implications for patients.
View Article and Find Full Text PDF
Article Synopsis
  • The study focuses on identifying brain amyloid positivity in non-demented individuals, which is vital for early Alzheimer's disease diagnosis and treatment to start before symptoms appear.
  • Researchers developed predictive models using data from 853 participants, analyzing various factors like demographics, cognitive tests, and biomarkers related to Alzheimer's.
  • The best-performing model, which included blood biomarkers and ApoE status, achieved high accuracy rates (AUCs of 0.82 and 0.90) in predicting amyloid positivity, surpassing traditional models that relied only on demographic and cognitive data.
View Article and Find Full Text PDF
Article Synopsis
  • The study investigated how well automated transcriptions match manual transcriptions in a telephone chatbot-based semantic verbal fluency test involving different cognitive states.
  • Analysis of 78 cases showed a strong correlation in word counts between the two transcription methods, with a 93% probability that differences stayed within a minimally important range, although qualitative features showed only fair agreement.
  • Results indicate that automated speech recognition is a reliable tool for assessing both quantitative and qualitative speech features in cognitively impaired individuals, highlighting its potential usefulness in remote evaluations.
View Article and Find Full Text PDF

Epileptic variant in the spectrum of Alzheimer's disease - practical implications.

Seizure

September 2024

Centre Mémoire, de Ressources et de Recherche de Strasbourg, France; Unité de Neuropsychologie, Service de Neurologie des Hôpitaux Universitaires de Strasbourg, Strasbourg, France; University of Strasbourg and CNRS, ICube laboratory UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), team IMIS/Neurocrypto Strasbourg, France; Centre de Compétences des démences rares des Hôpitaux Universitaires de Strasbourg, France. Electronic address:

Article Synopsis
  • Alzheimer's disease (AD) is linked to a higher risk of epilepsy, not only in its advanced stages (dementia) but also during earlier phases like mild cognitive impairment.
  • Epileptic seizures can even appear in the preclinical stage of AD, leading to a specific condition called the epileptic variant of Alzheimer's disease (evAD), which may be the only visible sign of the disease at that time.
  • Diagnosing evAD relies on examining amyloid and tau biomarkers and represents a crucial opportunity for early intervention with antiseizure medications to help slow down cognitive decline associated with AD.
View Article and Find Full Text PDF

Impact of the COVID-19 health crisis on psychotropic drug use in children and adolescents in France.

Child Adolesc Psychiatry Ment Health

September 2024

Inserm U1094, IRD UMR270, Univ. Limoges, CHU Limoges, EpiMact- Epidemiology of chronic diseases in tropical zone, Institute of Epidemiology and Tropical Neurology, OmegaHealth, Limoges, France.

Background: In 2019, the world faced a pandemic brought about by a severe acute respiratory infection caused by SARS-CoV-2 virus. The spread of this virus has profoundly affected societies, particularly in terms of their economic, human and social dimensions, as well as their healthcare systems. Several restrictive measures (reduced social interaction, periodic school closures,…) had to be taken to contain the spread of the virus.

View Article and Find Full Text PDF

[Securing the management of medicines at risk in a geriatric hospital: A comprehensive approach].

Soins Gerontol

September 2024

Service Gériatrie 1&2, Centre Mémoire de Ressources et de Recherche d'Île-de-France Sud-Site Broca, AP-HP, Hôpital Broca, 54-56 rue Pascal, 75013 Paris, France; Université Paris Cité, Maladie d'Alzheimer, 54-56 rue Pascal, 75013 Paris, France. Electronic address:

High-risk drugs, which are potentially a source of serious adverse reactions, are a major concern in healthcare establishments, particularly for geriatric patients, who often have multiple medications and co-morbid conditions. With a view to continuously improving the quality and safety of care, we have embarked on a proactive approach aimed at identifying, securing and improving the management of medicines at risk in geriatric wards.

View Article and Find Full Text PDF

Right anterior insula ASL hypoperfusion as a diagnostic biomarker of prodromal and mild dementia with Lewy bodies: preliminary evidence using a Bayesian approach.

Geroscience

August 2024

ICube Laboratory UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), IMIS (Imagerie Multimodale Intégrative en Santé) Team and IRIS Platform, University of Strasbourg and CNRS (Centre National de La Recherche Scientifique, National Center of Scientific Research), 4 Rue Kirschleger, 67000, Strasbourg, France.

Identifying and validating a biomarker with high specificity in early-stage dementia with Lewy bodies (DLB) using a feasible method is crucial to enhance the current suboptimal diagnostic procedure. Previous research revealed abnormalities, including hypoperfusion in the right anterior insular cortex at group level, in prodromal DLB. Exploring hypoperfusion of the right anterior insula, at an individual-level and assessing its relevance as a potential imaging biomarker in early DLB, has, to our knowledge, not been investigated.

View Article and Find Full Text PDF

Introduction: Dysarthria, a motor speech disorder caused by muscle weakness or paralysis, severely impacts speech intelligibility and quality of life. The condition is prevalent in motor speech disorders such as Parkinson's disease (PD), atypical parkinsonism such as progressive supranuclear palsy (PSP), Huntington's disease (HD), and amyotrophic lateral sclerosis (ALS). Improving intelligibility is not only an outcome that matters to patients but can also play a critical role as an endpoint in clinical research and drug development.

View Article and Find Full Text PDF

This study aimed to compare the diagnostic performance of visual assessment of electroencephalography (EEG) using the Grand Total EEG (GTE) score and quantitative EEG (QEEG) using spectral analysis in the context of cognitive impairment. This was a retrospective study of patients with mild cognitive impairment, with (MCI+V) or without (MCI) vascular dysfunction, and patients with dementia including Alzheimer's disease, Lewy Body Dementia and vascular dementia. The results showed that the GTE is a simple scoring system with some potential applications, but limited ability to distinguish between dementia subtypes, while spectral analysis appeared to be a powerful tool, but its clinical development requires the use of artificial intelligence tools.

View Article and Find Full Text PDF

Introduction: Remote digital assessments (RDAs) such as voice recording, video and motor sensors, olfactory, hearing, and vision screenings are now starting to be employed to complement classical biomarker and clinical evidence to identify patients in the early AD stages. Choosing which RDA can be proposed to individual patients is not trivial and often time-consuming. This position paper presents a decision-making algorithm for using RDA during teleconsultations in memory clinic settings.

View Article and Find Full Text PDF

Amantadine use in the French prospective NS-Park cohort.

J Neural Transm (Vienna)

July 2024

Department of Clinical Pharmacology and Neurosciences, Clinical Investigation Center CIC1436, Toulouse Parkinson Expert Centre, Toulouse NeuroToul Center of Excellence in Neurodegeneration (COEN), University of Toulouse 3, CHU of Toulouse, INSERM, Toulouse, France.

Article Synopsis
  • The study aimed to evaluate the use of amantadine in patients with Parkinson's disease (PD) and its effectiveness in treating levodopa-induced dyskinesia (LIDs).
  • It found that 12.6% of PD patients in the French NS-Park cohort were using amantadine, primarily younger patients with more severe symptoms and higher doses of levodopa.
  • The results indicated that starting amantadine led to significant improvements in LIDs and motor fluctuations among new users compared to those who had never used the drug.
View Article and Find Full Text PDF

Explaining the Variability of Alzheimer Disease Fluid Biomarker Concentrations in Memory Clinic Patients Without Dementia.

Neurology

April 2024

From the Univ. Bordeaux (V.B., G.C., C.D.), Inserm, Bordeaux Population Health, UMR1219, Bordeaux; CIC 1401 EC (V.B., G.C., C.D.), Pôle Santé Publique, CHU de Bordeaux; Laboratory of Immunology and Immunogenetics (I.P.), Resources Biological Center (CRB), CHU Bordeaux; Univ. Bordeaux (I.P.), CNRS, ImmunoConcEpT, UMR 5164, Bordeaux; Alzheimer Research Center IM2A (B.D.), Salpêtrière Hospital, AP-HP, Sorbonne University, Paris; Univ. Bordeaux (V.P.), CNRS, Institut des Maladies Neuroégénératives, UMR 5293, Bordeaux; Pôle de Neurosciences Cliniques (V.P.), Centre Mémoire de Ressources et de Recherche, CHU Bordeaux, France.

Background And Objectives: Patients' comorbidities can affect Alzheimer disease (AD) blood biomarker concentrations. Because a limited number of factors have been explored to date, our aim was to assess the proportion of the variance in fluid biomarker levels explained by the clinical features of AD and by a large number of non-AD-related factors.

Methods: MEMENTO enrolled 2,323 individuals with cognitive complaints or mild cognitive impairment in 26 French memory clinics.

View Article and Find Full Text PDF

[Management of an amnesic patient].

Rev Prat

December 2023

CHU de Rennes, service de neurologie, centre mémoire de ressources et de recherche, Rennes ; Inria, CNRS, Inserm, IRISA UMR 6074, Empenn U1228, université de Rennes, Rennes, France.

MANAGEMENT OF AN AMNESIC PATIENT. Until the early 1980s, neuropsychological rehabilitation of amnesic syndromes was limited to extensive repeated practice ('cognitive drill'). The ineffectiveness of these methods is now acknowledged, if the therapeutic target concerns daily life.

View Article and Find Full Text PDF

[Memory diseases].

Rev Prat

December 2023

Centre mémoire de ressources et de recherche (CMRR) de Strasbourg-Colmar, France. Pôle de gérontologie, Hôpitaux civils de Colmar, Colmar, France.

Article Synopsis
  • - Memory diseases permanently disrupt long-term memory by affecting specific neural circuits, particularly the Papez circuit, leading to problems with episodic memory while semantic memory often remains intact.
  • - Damage to the anterior temporal pole impacts semantic memory, causing significant amnesia characterized primarily by the loss of general knowledge.
  • - The most common cause of memory diseases is neurodegenerative conditions like Alzheimer's, but other factors such as infections, toxic conditions, and trauma can also lead to varying memory disorders with additional cognitive challenges.
View Article and Find Full Text PDF

Purpose: To assess the likely pathogenic/pathogenic (LP/P) variants rates in Mendelian dementia genes and the moderate-to-strong risk factors rates in patients with Alzheimer disease (AD).

Methods: We included 700 patients in a prospective study and performed exome sequencing. A panel of 28 Mendelian and 6 risk-factor genes was interpreted and returned to patients.

View Article and Find Full Text PDF

Data regarding Alzheimer's disease (AD) occurrence in farming populations is lacking. This study aimed to investigate whether, among the entire French farm manager (FM) workforce, certain agricultural activities are more strongly associated with AD than others, using nationwide data from the TRACTOR (Tracking and monitoring occupational risks in agriculture) project. Administrative health insurance data (digital electronic health/medical records and insurance claims) for the entire French agricultural workforce, over the period 2002-2016, on the entire mainland France were used to estimate the risk of AD for 26 agricultural activities with Cox proportional hazards model.

View Article and Find Full Text PDF

Introduction: The "prion-like" features of Alzheimer's disease (AD) tauopathy and its relationship with amyloid-β (Aβ) have never been experimentally studied in primates phylogenetically close to humans.

Methods: We injected 17 macaques in the entorhinal cortex with nanograms of seeding-competent tau aggregates purified from AD brains or control extracts from aged-matched healthy brains, with or without intracerebroventricular co-injections of oligomeric-Aβ.

Results: Pathological tau injection increased cerebrospinal fluid (CSF) p-tau181 concentration after 18 months.

View Article and Find Full Text PDF

[Support and guidance in driving for patients with (or suspected of having) Alzheimer's disease or related diseases: position paper].

Geriatr Psychol Neuropsychiatr Vieil

September 2023

CMRR Toulouse, Gérontopôle de Toulouse, CHU Toulouse, UMR Inserm 1295 Cerpop, IHU HealthAge.

New ministerial decree restricts driving motorized vehicles for patients with Alzheimer's disease and related disorders. Reisberg stage 3, threshold used to contraindicate driving, appears to correspond to a mild stage of major neurocognitive impairment. A single scale gives an idea of the level of risk but does not provide a holistic assessment.

View Article and Find Full Text PDF

[Driving: What is the relevance and usability of the Reisberg scale in 2023?].

Geriatr Psychol Neuropsychiatr Vieil

September 2023

EA 4468, Université Paris Cité, Maladie d'Alzheimer, Paris, France, Consultation mémoire/Accueil de jour, Ccentre Hospitalier des Quatre Villes, Sèvres, Saint-Cloud, France, Institut d'Enseignement à Distance, Université Paris 8, Saint-Denis, France.

The publication of the decree on the care of people with neurocognitive disorders brought to the fore the Reisberg's Global Deterioration Scale, a scale that only few clinicians use in memory centers or in geriatric. This scale has a number of limitations, not least of which is that it is obsolete, since it does not take into account disease advances in scientific knowledge with biomarkers. Consequently, the stages evoked no longer correspond to current descriptions.

View Article and Find Full Text PDF

Background: Cognitive complaints are often regarded as an early sign of Alzheimer's disease (AD) but may also occur in several other conditions and contexts. This study examines the correlates of cognitive complaint trajectories over a 5-year period in individuals who shared similar objective cognitive trajectories.

Methods: We analyzed a subsample (n = 1748) of the MEMENTO cohort, consisting of individuals with subjective cognitive decline or mild cognitive impairment at baseline.

View Article and Find Full Text PDF