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  1. Article: Commentary on Composite cognitive and functional measures for early stage Alzheimer's disease trials.

    Rentz, Dorene M / Papp, Kathryn V

    Alzheimer's & dementia (Amsterdam, Netherlands)

    2020  Volume 12, Issue 1, Page(s) e12012

    Language English
    Publishing date 2020-05-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2832898-X
    ISSN 2352-8729
    ISSN 2352-8729
    DOI 10.1002/dad2.12012
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Validating Use of Technology for Cognitive Test Assessment.

    Rentz, Dorene M

    EBioMedicine

    2016  Volume 11, Page(s) 23–24

    MeSH term(s) Biomedical Technology/standards ; Cognition ; Cognition Disorders/diagnosis ; Cognition Disorders/psychology ; Humans ; Psychological Tests/standards ; Reproducibility of Results
    Language English
    Publishing date 2016-09
    Publishing country Netherlands
    Document type Letter
    ZDB-ID 2851331-9
    ISSN 2352-3964
    ISSN (online) 2352-3964
    DOI 10.1016/j.ebiom.2016.08.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Disease progression and costs at the 3-year follow-up of the GERAS-US study.

    Chandler, Julie M / Rentz, Dorene M / Zagar, Anthony / Kim, Yongin / Schwartz, Ronald L / Fillit, Howard

    Alzheimer's & dementia (Amsterdam, Netherlands)

    2023  Volume 15, Issue 2, Page(s) e12430

    Abstract: Introduction: GERAS-US prospectively characterized clinical and economic outcomes of early symptomatic Alzheimer's disease (AD). Societal cost changes were examined in amyloid-positive patients with mild cognitive impairment due to AD (MCI) and mild ... ...

    Abstract Introduction: GERAS-US prospectively characterized clinical and economic outcomes of early symptomatic Alzheimer's disease (AD). Societal cost changes were examined in amyloid-positive patients with mild cognitive impairment due to AD (MCI) and mild dementia due to AD (MILD).
    Methods: Cognition, function, and caregiver burden were assessed using Mini-Mental State Examination (MMSE), Cognitive Function Index (CFI), and Zarit Burden Interview, respectively. Costs are presented as least square mean for the overall population and for MCI versus MILD using mixed model repeated measures.
    Results: MMSE score and CFI worsened. Total societal costs (dollars/month) for MCI and MILD, respectively, were higher at baseline ($2430 and $4063) but steady from 6 ($1977 and $3032) to 36 months ($2007 and $3392). Direct non-medical costs rose significantly for MILD. Caregiver burden was higher for MILD versus MCI at 12, 18, and 24 months.
    Discussion: Function and cognition declined in MILD. Non-medical costs reflect the increasing impact of AD even in its early stages.
    Highlights: In the GERAS-US study, total societal costs for patients with mild cognitive impairment due to Alzheimer's disease (MCI) and mild dementia due to Alzheimer's disease (MILD) were higher at baseline but steady from 6 to 36 months.Mini-Mental State Examination (MMSE) and Cognitive Function Index (CFI) worsened; the rate of decline was significant for patients with MILD but not for those with MCI.There was a rise in direct non-medical costs at 36 months for patients with MILD.Caregiver burden was higher for MILD versus MCI at 12, 18, and 24 months.Slowing the rate of disease progression in this early symptomatic population may allow patients to maintain their ability to carry out everyday activities longer.
    Language English
    Publishing date 2023-04-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2832898-X
    ISSN 2352-8729
    ISSN 2352-8729
    DOI 10.1002/dad2.12430
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Integrated Alzheimer's Disease Rating Scale: Clinically meaningful change estimates.

    Wessels, Alette M / Rentz, Dorene M / Case, Michael / Lauzon, Steve / Sims, John R

    Alzheimer's & dementia (New York, N. Y.)

    2022  Volume 8, Issue 1, Page(s) e12312

    Abstract: Introduction: The Integrated Alzheimer's Disease Rating Scale (iADRS) has been used to detect differences in disease progression in early Alzheimer's disease (AD). The objectives of this study were to enhance understanding of iADRS point changes within ... ...

    Abstract Introduction: The Integrated Alzheimer's Disease Rating Scale (iADRS) has been used to detect differences in disease progression in early Alzheimer's disease (AD). The objectives of this study were to enhance understanding of iADRS point changes within the context of clinical trials, and to establish a minimal clinically important difference (MCID) on the iADRS.
    Methods: Data from AMARANTH and EXPEDITION3 were analyzed using various approaches, including anchor-based, distribution-based, regression analyses, and cumulative distribution function (CDF) plots. Three potential anchors were examined, including the Clinical Dementia Rating-Sum of Boxes, Mini-Mental State Examination, and Functional Activities Questionnaire. Triangulation of all results was used to determine the MCID for participants with mild cognitive impairment (MCI) due to AD and AD with mild dementia.
    Results: All three anchors met criteria for "sufficiently associated" (|r| = 0.4-0.7). Cumulatively, results from anchor-based and distribution-based results converged to suggest an iADRS MCID of 5 points for MCI due to AD and 9 points for AD with mild dementia. Regression analyses and CDF plots supported these values.
    Discussion: These findings suggest the iADRS can be used in clinical trials to detect a clinically meaningful outcome of AD progression.
    Language English
    Publishing date 2022-06-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2832891-7
    ISSN 2352-8737 ; 2352-8737
    ISSN (online) 2352-8737
    ISSN 2352-8737
    DOI 10.1002/trc2.12312
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Increased intraindividual variability in reaction time performance is associated with emerging cognitive decline in cognitively unimpaired adults.

    Jutten, Roos J / Amariglio, Rebecca E / Maruff, Paul / Properzi, Michael J / Rentz, Dorene M / Johnson, Keith A / Sperling, Reisa A / Papp, Kathryn V

    Neuropsychology

    2023  Volume 38, Issue 2, Page(s) 184–197

    Abstract: Objective: To investigate whether intraindividual variability (IIV) in reaction time (RT) over monthly administered cognitive tasks is increased in cognitively unimpaired older adults who are at risk for cognitive decline, and whether this is ... ...

    Abstract Objective: To investigate whether intraindividual variability (IIV) in reaction time (RT) over monthly administered cognitive tasks is increased in cognitively unimpaired older adults who are at risk for cognitive decline, and whether this is independent of mean RT performance.
    Method: N
    Results: After adjusting for mean RT, increased IIV on complex RT tasks was independently associated with worse EF performance (β = -0.10, 95% CI [-.16, -0.03],
    Conclusions: Increased variability in monthly RT may reflect subtle EF deficits and provide unique information about short-term cognitive decline in preclinical Alzheimer's disease. (PsycInfo Database Record (c) 2024 APA, all rights reserved).
    MeSH term(s) Humans ; Female ; Aged ; Male ; Cross-Sectional Studies ; Reaction Time ; Alzheimer Disease/psychology ; Amyloid beta-Peptides ; Cognitive Dysfunction/diagnostic imaging ; Cognitive Dysfunction/complications ; Positron-Emission Tomography ; tau Proteins
    Chemical Substances Amyloid beta-Peptides ; tau Proteins
    Language English
    Publishing date 2023-11-16
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1042412-x
    ISSN 1931-1559 ; 0894-4105
    ISSN (online) 1931-1559
    ISSN 0894-4105
    DOI 10.1037/neu0000928
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Face Name Associative Memory Exam and biomarker status in the ARMADA study: Advancing reliable measurement in Alzheimer's disease and cognitive aging.

    Rentz, Dorene M / Klinger, Hannah M / Samaroo, Aubryn / Fitzpatrick, Colleen / Schneider, Olivia R / Amagai, Saki / Peipert, John Devin

    Alzheimer's & dementia (Amsterdam, Netherlands)

    2023  Volume 15, Issue 3, Page(s) e12473

    Abstract: The Face Name Associative Memory Exam (FNAME) was introduced into the NIH Toolbox as part of the ARMADA study and establishes normative data for diverse participants, ages 64 to 85+, and proposes cutoff scores between biomarker positive versus negative (+ ...

    Abstract The Face Name Associative Memory Exam (FNAME) was introduced into the NIH Toolbox as part of the ARMADA study and establishes normative data for diverse participants, ages 64 to 85+, and proposes cutoff scores between biomarker positive versus negative (+/-) groups. The FNAME was administered to 257 participants across the clinical spectrum with 122 having amyloid biomarkers. Linear regression explored the association between demographics and FNAME and between amyloid (+/-) groups. Receiver operating characteristic curves (ROC) identified performance thresholds that best discriminated between biomarker (+/-) individuals. Lower FNAME scores occurred in males, older ages, Black/African Americans, Hispanics, and biomarker-positive participants. ROC analyses demonstrated acceptable accuracy (0.73 to 0.77) but only when combined with clinical status. The diagnostic discrimination of amyloid positivity was acceptable but not excellent, suggesting the FNAME may be a better screening indicator of clinical status rather than amyloid deposition in cognitively normal individuals. Normative data are provided.
    Language English
    Publishing date 2023-09-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2832898-X
    ISSN 2352-8729
    ISSN 2352-8729
    DOI 10.1002/dad2.12473
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  7. Article: Computerized cognitive practice effects in relation to amyloid and tau in preclinical Alzheimer's disease: Results from a multi-site cohort.

    Young, Christina B / Mormino, Elizabeth C / Poston, Kathleen L / Johnson, Keith A / Rentz, Dorene M / Sperling, Reisa A / Papp, Kathryn V

    Alzheimer's & dementia (Amsterdam, Netherlands)

    2023  Volume 15, Issue 1, Page(s) e12414

    Abstract: Scalable cognitive paradigms that provide metrics such as the Computerized Cognitive Composite (C3) may be sensitive enough to relate to Alzheimer's disease biomarkers in the preclinical clinically unimpaired (CU) stage. We examined CU older adults ( ...

    Abstract Scalable cognitive paradigms that provide metrics such as the Computerized Cognitive Composite (C3) may be sensitive enough to relate to Alzheimer's disease biomarkers in the preclinical clinically unimpaired (CU) stage. We examined CU older adults (
    Language English
    Publishing date 2023-03-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2832898-X
    ISSN 2352-8729
    ISSN 2352-8729
    DOI 10.1002/dad2.12414
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  8. Article ; Online: The Mobile Toolbox for monitoring cognitive function.

    Gershon, Richard C / Sliwinski, Marti J / Mangravite, Lara / King, Jonathan W / Kaat, Aaron J / Weiner, Michael W / Rentz, Dorene M

    The Lancet. Neurology

    2023  Volume 21, Issue 7, Page(s) 589–590

    MeSH term(s) Cognition ; Humans
    Language English
    Publishing date 2023-06-29
    Publishing country England
    Document type Letter
    ZDB-ID 2081241-3
    ISSN 1474-4465 ; 1474-4422
    ISSN (online) 1474-4465
    ISSN 1474-4422
    DOI 10.1016/S1474-4422(22)00225-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Atrophy links lower novelty-related locus coeruleus connectivity to cognitive decline in preclinical AD.

    Schneider, Christoph / Prokopiou, Prokopis C / Papp, Kathryn V / Engels-Domínguez, Nina / Hsieh, Stephanie / Juneau, Truley A / Schultz, Aaron P / Rentz, Dorene M / Sperling, Reisa A / Johnson, Keith A / Jacobs, Heidi I L

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

    2024  

    Abstract: Introduction: Animal research has shown that tau pathology in the locus coeruleus (LC) is associated with reduced norepinephrine signaling, lower projection density to the medial temporal lobe (MTL), atrophy, and cognitive impairment. We investigated ... ...

    Abstract Introduction: Animal research has shown that tau pathology in the locus coeruleus (LC) is associated with reduced norepinephrine signaling, lower projection density to the medial temporal lobe (MTL), atrophy, and cognitive impairment. We investigated the contribution of LC-MTL functional connectivity (FC
    Methods: We analyzed functional magnetic resonance imaging and amyloid beta (Aβ) positron emission tomography data from 128 cognitively normal participants, associating novelty-related FC
    Results: Cross-sectionally, lower FC
    Discussion: FC
    Highlights: Novelty-related functional magnetic resonance imaging (fMRI) LC-medial temporal lobe (MTL) connectivity links to longitudinal Aβ-dependent atrophy. This relationship extended to higher Braak stage regions with increasing Aβ burden. Longitudinal MTL atrophy mediated the LC-MTL connectivity-cognition relationship. Our findings mirror the animal data on MTL atrophy following NE signal dysfunction.
    Language English
    Publishing date 2024-04-27
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2211627-8
    ISSN 1552-5279 ; 1552-5260
    ISSN (online) 1552-5279
    ISSN 1552-5260
    DOI 10.1002/alz.13839
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  10. Article ; Online: Demonstration of Clinical Meaningfulness of the Integrated Alzheimer's Disease Rating Scale (iADRS): Association Between Change in iADRS Scores and Patient and Caregiver Health Outcomes.

    Wessels, Alette M / Belger, Mark / Johnston, Joseph A / Yu, Youying / Rentz, Dorene M / Dowsett, Sherie A / Chandler, Julie

    Journal of Alzheimer's disease : JAD

    2022  Volume 88, Issue 2, Page(s) 577–588

    Abstract: Background: The integrated Alzheimer's Disease Rating Scale (iADRS) is a validated cognitive/functional composite that effectively captures cognitive and functional decline over a broad spectrum of disease. The clinical meaningfulness of change on iADRS ...

    Abstract Background: The integrated Alzheimer's Disease Rating Scale (iADRS) is a validated cognitive/functional composite that effectively captures cognitive and functional decline over a broad spectrum of disease. The clinical meaningfulness of change on iADRS can be supported by establishing an association with changes on important health outcome measures.
    Objective: To evaluate the relationship between change on the iADRS and changes in health outcomes in individuals with mild cognitive impairment (MCI) due to Alzheimer's disease (AD), or mild or moderate AD dementia using placebo data from four AD clinical trials and data from one AD observational study.
    Methods: Analysis of covariate (ANCOVA) models were used to estimate the relationship between 18-month change on the iADRS and changes on health outcome measures (related to cost, quality of life, and caregiver burden). The regression coefficients for the iADRS were used to compute impact of natural disease progression and disease-modifying treatment on health outcomes. Additional ANCOVAs were conducted to understand whether cognition and/or function was the underlying explanation of any association between iADRS and health outcome change.
    Results: Across datasets and disease stages, a worsening on the iADRS was significantly associated with increased societal costs, caregiver burden (time and distress) and worsening in measures of patient quality of life.
    Conclusion: Decline on the iADRS was associated with worsening in health outcome measures. These findings suggest that the iADRS can be used in clinical trials as a proxy measure of clinically meaningful outcomes of AD progression.
    MeSH term(s) Alzheimer Disease/drug therapy ; Caregivers/psychology ; Clinical Trials as Topic ; Cognitive Dysfunction/psychology ; Humans ; Observational Studies as Topic ; Outcome Assessment, Health Care ; Quality of Life
    Language English
    Publishing date 2022-06-13
    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-220303
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