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  1. Article ; Online: « Avoir deux poids et deux mesures » mais surtout comprendre la temporalité : démence et indice de masse corporelle.

    Berr, Claudine

    Medecine sciences : M/S

    2018  Volume 34, Issue 6-7, Page(s) 504–506

    Title translation "Having double standards" but especially understanding the temporality: dementia and body mass index.
    MeSH term(s) Body Mass Index ; Dementia/etiology ; Female ; Humans ; Male ; Obesity/complications ; Risk Factors
    Language French
    Publishing date 2018-07-31
    Publishing country France
    Document type Journal Article
    ZDB-ID 632733-3
    ISSN 1958-5381 ; 0767-0974
    ISSN (online) 1958-5381
    ISSN 0767-0974
    DOI 10.1051/medsci/20183406003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Mapping Cognitive Trajectories and Detecting Early Dementia Using the Mini-Mental State Examination Cognitive Charts: Application to the French Three-City Cohort.

    Norton, Joanna / Gutierrez, Laure-Anne / Gourdeau, Christian / Amieva, Hélène / Bernier, Patrick / Berr, Claudine

    Journal of Alzheimer's disease : JAD

    2024  Volume 98, Issue 2, Page(s) 403–409

    Abstract: The Cognitive Quotient (QuoCo) classification algorithm monitoring decline on age- and education-adjusted Mini-Mental State Examination (MMSE)-derived cognitive charts has proved superior to the conventionally-used cut-off for identifying incident ... ...

    Abstract The Cognitive Quotient (QuoCo) classification algorithm monitoring decline on age- and education-adjusted Mini-Mental State Examination (MMSE)-derived cognitive charts has proved superior to the conventionally-used cut-off for identifying incident dementia; however, it remains to be tested in different settings. Data were drawn from the Three-City Cohort to 1) assess the screening accuracy of the QuoCo, and 2) compare its performance to that of serial MMSE tests applying different cut-offs. For the QuoCo, sensitivity was 74.2 (95% CI: 71.4-76.8) and specificity 84.1 (83.6-84.7) and for the MMSE < 24, 64.1 (61.1-67.0) and 94.8 (94.4-95.1), respectively; whereas overall accuracy and sensitivity was highest for MMSE cut-offs <25 and <26. User-friendly charts for mapping cognitive trajectories over visits with an alert for potentially 'abnormal' decline can be of practical use and encourage regular monitoring in primary care where the <24 cut-off is still widely used despite its poor sensitivity.
    MeSH term(s) Humans ; Dementia/diagnosis ; Dementia/psychology ; Neuropsychological Tests ; Mental Status and Dementia Tests ; Educational Status ; Cognition ; Cognitive Dysfunction/diagnosis ; Cognitive Dysfunction/psychology ; Sensitivity and Specificity
    Language English
    Publishing date 2024-02-23
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1440127-7
    ISSN 1875-8908 ; 1387-2877
    ISSN (online) 1875-8908
    ISSN 1387-2877
    DOI 10.3233/JAD-231176
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Habitual coffee consumption and risk of dementia in older persons: modulation by CYP1A2 polymorphism.

    Lefèvre-Arbogast, Sophie / Helmer, Catherine / Berr, Claudine / Debette, Stéphanie / Samieri, Cécilia

    European journal of epidemiology

    2023  Volume 39, Issue 1, Page(s) 81–86

    Abstract: Higher coffee consumption has been associated with reduced dementia risk, yet with inconsistencies across studies. CYP1A2 polymorphisms, which affects caffeine metabolism, may modulate the association between coffee and the risk of dementia and Alzheimer' ...

    Abstract Higher coffee consumption has been associated with reduced dementia risk, yet with inconsistencies across studies. CYP1A2 polymorphisms, which affects caffeine metabolism, may modulate the association between coffee and the risk of dementia and Alzheimer's disease (AD). We included 5964 participants of the Three-City Study (mean age 74 years-old), free of dementia at baseline when they reported their daily coffee consumption, with available genome-wide genotyping and followed for dementia over a median of 9.0 (range 0.8-18.7) years. In Cox proportional-hazards models, the relationship between coffee consumption and dementia risk was modified by CYP1A2 polymorphism at rs762551 (p for interaction = 0.034). In multivariable-adjusted models, coffee intake was linearly associated with a decreased risk of dementia among carriers of the C allele only ("slower caffeine metabolizers"; HR for 1-cup increased [95% CI] 0.90 [0.83-0.97]), while in non-carriers ("faster caffeine metabolizers"), there was no significant association but a J-shaped trend toward a decrease in dementia risk up to 3 cups/day and increased risk beyond. Thus, compared to null intake, drinking ≥ 4 cups of coffee daily was associated with a reduced dementia risk in slower but not faster metabolizers (HR [95% CI] for ≥ 4 vs. 0 cup/day = 0.45 [0.25-0.80] and 1.32 [0.89-1.96], respectively). Results were similar when studying AD and another CYP1A2 candidate polymorphism (rs2472304), but no interaction was found with CYP1A2 rs2472297 or rs2470893. In this cohort, a linear association of coffee intake to lower dementia risk was apparent only among carriers of CYP1A2 polymorphisms predisposing to slower caffeine metabolism.
    MeSH term(s) Aged ; Humans ; Caffeine/pharmacology ; Caffeine/therapeutic use ; Coffee ; Cytochrome P-450 CYP1A2/genetics ; Cytochrome P-450 CYP1A2/metabolism ; Dementia/epidemiology ; Dementia/genetics ; Risk Factors
    Chemical Substances Caffeine (3G6A5W338E) ; Coffee ; CYP1A2 protein, human (EC 1.14.14.1) ; Cytochrome P-450 CYP1A2 (EC 1.14.14.1)
    Language English
    Publishing date 2023-10-31
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 632614-6
    ISSN 1573-7284 ; 0393-2990
    ISSN (online) 1573-7284
    ISSN 0393-2990
    DOI 10.1007/s10654-023-01060-x
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  4. Article ; Online: Five-Year Dynamic Prediction of Dementia Using Repeated Measures of Cognitive Tests and a Dependency Scale.

    Ben-Hassen, Céline / Helmer, Catherine / Berr, Claudine / Jacqmin-Gadda, Hélène

    American journal of epidemiology

    2021  Volume 191, Issue 3, Page(s) 453–464

    Abstract: The progression of dementia prevalence over the years and the lack of efficient treatments to stop or reverse the cognitive decline make dementia a major public health challenge in the developed world. Identifying people at high risk of developing ... ...

    Abstract The progression of dementia prevalence over the years and the lack of efficient treatments to stop or reverse the cognitive decline make dementia a major public health challenge in the developed world. Identifying people at high risk of developing dementia could improve the treatment of these patients and help select the target population for preventive clinical trials. We used joint modeling to build a dynamic prediction tool of dementia based on the change over time of 2 neurocognitive tests (the Mini-Mental State Examination and the Isaacs Set Tests) as well as an autonomy scale (the Instrumental Activities of Daily Living). The model was estimated with data from the French cohort Personnes Agées QUID (1988-2015) and validated both by cross-validation and externally with data from the French Three City cohort (1999-2018). We evaluated its predictive abilities through area under the receiver operating characteristics curve and Brier score, accounting for right censoring and competing risk of death, and obtained an average area under the curve value of 0.95 for the risk of dementia in the next 5 or 10 years. This tool is able to discriminate a high-risk group of people from the rest of the population. This could be of help in clinical practice and research.
    MeSH term(s) Activities of Daily Living ; Cognitive Dysfunction/diagnosis ; Dementia/diagnosis ; Dementia/epidemiology ; Humans ; Neuropsychological Tests ; ROC Curve
    Language English
    Publishing date 2021-11-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2937-3
    ISSN 1476-6256 ; 0002-9262
    ISSN (online) 1476-6256
    ISSN 0002-9262
    DOI 10.1093/aje/kwab269
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Complaints of daytime sleepiness, insomnia, hypnotic use, and risk of dementia: a prospective cohort study in the elderly.

    Cavaillès, Clémence / Berr, Claudine / Helmer, Catherine / Gabelle, Audrey / Jaussent, Isabelle / Dauvilliers, Yves

    Alzheimer's research & therapy

    2022  Volume 14, Issue 1, Page(s) 12

    Abstract: Background: Sleep disturbances are common in elderly and occur frequently in dementia. The impact of excessive daytime sleepiness (EDS), insomnia complaints, sleep quality, and hypnotics on the risk of all-cause dementia, Alzheimer disease (AD), and ... ...

    Abstract Background: Sleep disturbances are common in elderly and occur frequently in dementia. The impact of excessive daytime sleepiness (EDS), insomnia complaints, sleep quality, and hypnotics on the risk of all-cause dementia, Alzheimer disease (AD), and dementia with vascular component (DVC) remains unclear, as does the association between sleep profile and plasma β-amyloid levels.
    Methods: Analyses were carried out on 6851 participants aged 65 years and over randomly recruited from three French cities and free of dementia at baseline. A structured interview and self-questionnaire assessed sleep complaints (EDS, insomnia complaints, sleep quality) and medications at baseline. Incident cases of dementia were diagnosed systematically over a 12-year period. Multivariate Cox models were used to estimate the risk of dementia associated with the sleep complaints considered individually and globally. Plasma β-amyloid levels were measured by an xMAP-based assay technology in 984 subjects.
    Results: After adjustment for socio-demographic characteristics, lifestyle, APOE-ε4, cardiovascular factors, and depressive status, EDS had a higher risk of all-cause dementia (HR = 1.21; 95%CI = [1.01-1.46]) and DVC (HR = 1.58; 95%CI = [1.07-2.32]) but not AD. Persistent use of hypnotics increased the risk for all-cause dementia, specifically AD (HR = 1.28; 95%CI = [1.04-1.58]), but not DVC. No association was found for insomnia complaints and sleep quality taken as individual factors or combined with EDS on the risk of dementia. No association was found between β-amyloid, sleep complaints, and incident dementia.
    Conclusions: The results suggest a deleterious role of EDS and hypnotics on dementia. Further studies are required to elucidate the mechanisms involved in these associations and whether its management can prevent the risk of dementia.
    MeSH term(s) Aged ; Dementia/epidemiology ; Disorders of Excessive Somnolence/diagnosis ; Disorders of Excessive Somnolence/epidemiology ; Humans ; Hypnotics and Sedatives/therapeutic use ; Prospective Studies ; Risk Factors ; Sleep Initiation and Maintenance Disorders/epidemiology
    Chemical Substances Hypnotics and Sedatives
    Language English
    Publishing date 2022-01-20
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2506521-X
    ISSN 1758-9193 ; 1758-9193
    ISSN (online) 1758-9193
    ISSN 1758-9193
    DOI 10.1186/s13195-021-00952-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Similarities in cognitive abilities in older couples: a study of mutual influences.

    Caillot-Ranjeva, Sybille / Amieva, Hélène / Meillon, Céline / Helmer, Catherine / Berr, Claudine / Bergua, Valérie

    Journal of clinical and experimental neuropsychology

    2021  Volume 43, Issue 1, Page(s) 78–90

    Abstract: ... ...

    Abstract Objective
    MeSH term(s) Aged ; Aptitude/physiology ; Cognition/physiology ; Cohort Studies ; Female ; Humans ; Language ; Male ; Spouses
    Language English
    Publishing date 2021-02-08
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 605982-x
    ISSN 1744-411X ; 0168-8634 ; 1380-3395
    ISSN (online) 1744-411X
    ISSN 0168-8634 ; 1380-3395
    DOI 10.1080/13803395.2021.1874882
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Dementia Associated with Anticholinergic Drugs Used for Overactive Bladder: A Nested Case-Control Study Using the French National Medical-Administrative Database.

    Malcher, Marie France / Droupy, Stephane / Berr, Claudine / Ziad, Abdelkrim / Huguet, Helena / Faillie, Jean-Luc / Serrand, Chris / Mura, Thibault

    The Journal of urology

    2022  Volume 208, Issue 4, Page(s) 863–871

    Abstract: Purpose: We analyzed the relationship between use of anticholinergic drugs to treat overactive bladder (OAB) and risk of incident dementia in older patients, overall and for each drug separately.: Materials and methods: We conducted a nested case- ... ...

    Abstract Purpose: We analyzed the relationship between use of anticholinergic drugs to treat overactive bladder (OAB) and risk of incident dementia in older patients, overall and for each drug separately.
    Materials and methods: We conducted a nested case-control study using the French National Medical-Administrative Database. We identified incident dementia cases and controls from January 1, 2013 to December 31, 2018 in individuals aged ≥60 years. Controls were matched 5:1 to cases by date of case diagnosis (index date), age, sex, and income. We set a 5-year exposure period ending 2 years before the index date (lag-time period to avoid protopathic bias). We quantified cumulative exposure to flavoxate, oxybutynin, solifenacin, trospium, and fesoterodine using defined daily doses (DDDs). We performed conditional logistic regression analyses adjusted for factors known to be associated with OAB and/or dementia including obesity, diabetes, stroke, coronary heart disease, and psychotic disorders.
    Results: We analyzed 4,810 cases and 24,050 matched controls with a median age of 82 years. OAB anticholinergic use was associated with an increased risk of dementia (adjusted OR [aOR]=1.23, 95% CI 1.10-1.37) with a cumulative dose-response: aOR=1.07 (95% CI 0.91-1.25) for 1-90 DDDs, aOR=1.29 (1.05-1.58) for 91-365 DDDs and aOR=1.48 (1.22-1.80) for >365 DDDs. Considering each OAB anticholinergic separately showed a particularly marked increased risk of dementia for oxybutynin and solifenacin, but no increased risk for trospium.
    Conclusions: When treating OAB in older patients, OAB anticholinergics should be used with caution, taking into account the patient's cognitive status, the anticholinergic load, and the different therapeutic options.
    MeSH term(s) Aged ; Aged, 80 and over ; Case-Control Studies ; Cholinergic Antagonists/adverse effects ; Dementia/chemically induced ; Dementia/epidemiology ; Humans ; Muscarinic Antagonists/therapeutic use ; Solifenacin Succinate/therapeutic use ; Urinary Bladder, Overactive/complications ; Urinary Bladder, Overactive/drug therapy ; Urinary Bladder, Overactive/epidemiology
    Chemical Substances Cholinergic Antagonists ; Muscarinic Antagonists ; Solifenacin Succinate (KKA5DLD701)
    Language English
    Publishing date 2022-06-10
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3176-8
    ISSN 1527-3792 ; 0022-5347
    ISSN (online) 1527-3792
    ISSN 0022-5347
    DOI 10.1097/JU.0000000000002804
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  8. Article ; Online: Air quality improvement and incident dementia: Effects of observed and hypothetical reductions in air pollutant using parametric g-computation.

    Letellier, Noémie / Gutierrez, Laure-Anne / Duchesne, Jeanne / Chen, Chen / Ilango, Sindana / Helmer, Catherine / Berr, Claudine / Mortamais, Marion / Benmarhnia, Tarik

    Alzheimer's & dementia : the journal of the Alzheimer's Association

    2022  Volume 18, Issue 12, Page(s) 2509–2517

    Abstract: Introduction: No evidence exists about the impact of air pollution reduction on incidence of dementia. The aim of this study was to quantify how air quality improvement leads to dementia-incidence benefits.: Methods: In the French Three-City cohort ( ... ...

    Abstract Introduction: No evidence exists about the impact of air pollution reduction on incidence of dementia. The aim of this study was to quantify how air quality improvement leads to dementia-incidence benefits.
    Methods: In the French Three-City cohort (12 years of follow-up), we used parametric g-computation to quantify the expected number of prevented dementia cases under different hypothetical interventions with particulate matter measuring <2.5 μm (PM
    Results: Among 7051 participants, 789 participants developed dementia. The median PM
    Discussion: These findings highlight the possible substantial benefits of reducing air pollution in the prevention of dementia.
    MeSH term(s) Humans ; Air Pollutants/adverse effects ; Air Pollutants/analysis ; Quality Improvement ; Environmental Exposure ; Air Pollution/adverse effects ; Particulate Matter/analysis ; Dementia/epidemiology ; Dementia/prevention & control
    Chemical Substances Air Pollutants ; Particulate Matter
    Language English
    Publishing date 2022-02-09
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2211627-8
    ISSN 1552-5279 ; 1552-5260
    ISSN (online) 1552-5279
    ISSN 1552-5260
    DOI 10.1002/alz.12606
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  9. Article ; Online: Trajectories of sleep duration and timing before dementia: a 14-year follow-up study.

    Cavaillès, Clémence / Carrière, Isabelle / Wagner, Maude / Dartigues, Jean-François / Berr, Claudine / Dauvilliers, Yves / Jaussent, Isabelle

    Age and ageing

    2022  Volume 51, Issue 8

    Abstract: Background: given the complex relationship between sleep and neurodegenerative processes, it is important to examine whether changes in sleep patterns occur prior or close to dementia onset.: Objective: to examine the relationship between sleep ... ...

    Abstract Background: given the complex relationship between sleep and neurodegenerative processes, it is important to examine whether changes in sleep patterns occur prior or close to dementia onset.
    Objective: to examine the relationship between sleep parameters and dementia incidence and, to characterize trajectories of sleep patterns before dementia diagnosis.
    Design: a 14-year longitudinal study including a nested case-control study.
    Setting: the French Three-City Study.
    Subjects: overall, 1,749 cognitively healthy participants (≥65 years) for the longitudinal study and, 182 incident dementia cases and 719 controls matched by sex, age and educational level for the case-control study.
    Methods: dementia cases were assessed at each visit and self-reported sleep parameters at baseline, 2, 8, 10, 12 and 14 years. Cox models were used to estimate the risk of dementia associated with baseline sleep parameters (sleep duration, time in bed (TIB), sleep timing, sleepiness and insomnia). Latent-process mixed models were performed to compare sleep trajectories according to the case-control status.
    Results: long baseline nighttime and 24-h sleep durations (≥9 h) as well as being persistent or becoming long sleepers during follow-up were associated with dementia incidence. Trajectories of sleep durations and TIB showed faster increases in cases compared with controls up to 12 years before dementia. The mean differences [95%CI] for 24-h sleep duration between cases and controls were: 0.27 h [0.01;0.52], 0.34 [0.09;0.58] and 0.67 [0.44;0.90] at -12, -8 and -2 years, respectively. Bedtime trajectories showed an earlier bedtime in cases up to -8 years.
    Conclusion: long sleep duration and earlier bedtime may impact dementia incidence.
    MeSH term(s) Case-Control Studies ; Dementia/diagnosis ; Dementia/epidemiology ; Follow-Up Studies ; Humans ; Longitudinal Studies ; Sleep
    Language English
    Publishing date 2022-08-24
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 186788-x
    ISSN 1468-2834 ; 0002-0729
    ISSN (online) 1468-2834
    ISSN 0002-0729
    DOI 10.1093/ageing/afac186
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  10. Article ; Online: Modeling exposure to airborne metals using moss biomonitoring in cemeteries in two urban areas around Paris and Lyon in France.

    Lequy, Emeline / Meyer, Caroline / Vienneau, Danielle / Berr, Claudine / Goldberg, Marcel / Zins, Marie / Leblond, Sébastien / de Hoogh, Kees / Jacquemin, Bénédicte

    Environmental pollution (Barking, Essex : 1987)

    2022  Volume 303, Page(s) 119097

    Abstract: Exposure of the general population to airborne metals remains poorly estimated despite the potential health risks. Passive moss biomonitoring can proxy air quality at fine resolution over large areas, mainly in rural areas. We adapted the technique to ... ...

    Abstract Exposure of the general population to airborne metals remains poorly estimated despite the potential health risks. Passive moss biomonitoring can proxy air quality at fine resolution over large areas, mainly in rural areas. We adapted the technique to urban areas to develop fine concentration maps for several metals for Constances cohort's participants. We sampled Grimmia pulvinata in 77 and 51 cemeteries within ∼50 km of Paris and Lyon city centers, respectively. We developed land-use regression models for 14 metals including cadmium, lead, and antimony; potential predictors included the amount of urban, agricultural, forest, and water around cemeteries, population density, altitude, and distance to major roads. We used both kriging with external drift and land use regression followed by residual kriging when necessary to derive concentration maps (500 × 500 m) for each metal and region. Both approaches led to similar results. The most frequent predictors were the amount of urban, agricultural, or forest areas. Depending on the metal, the models explained part of the spatial variability, from 6% for vanadium in Lyon to 84% for antimony in Paris, but mostly between 20% and 60%, with better results for metals emitted by human activities. Moss biomonitoring in cemeteries proves efficient for obtaining airborne metal exposures in urban areas for the most common metals.
    MeSH term(s) Air Pollutants/analysis ; Antimony ; Biological Monitoring ; Bryophyta ; Cemeteries ; Environmental Monitoring/methods ; Humans ; Metals/analysis ; Metals, Heavy/analysis
    Chemical Substances Air Pollutants ; Metals ; Metals, Heavy ; Antimony (9IT35J3UV3)
    Language English
    Publishing date 2022-03-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2022.119097
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