LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 552

Search options

  1. Article ; Online: Elucidating the causes of neurodegeneration.

    Petsko, Gregory A / Small, Scott A

    Science (New York, N.Y.)

    2022  Volume 377, Issue 6601, Page(s) 31–32

    Abstract: Investigating phase separation in neurodegeneration highlights evidence needed for causation. ...

    Abstract Investigating phase separation in neurodegeneration highlights evidence needed for causation.
    Language English
    Publishing date 2022-06-30
    Publishing country United States
    Document type Journal Article ; Comment
    ZDB-ID 128410-1
    ISSN 1095-9203 ; 0036-8075
    ISSN (online) 1095-9203
    ISSN 0036-8075
    DOI 10.1126/science.adc9969
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article: KCMS Provides Leadership, Adapts to COVID-19 Challenges.

    Kujath, Scott W / Small, Annette

    Missouri medicine

    2022  Volume 119, Issue 4, Page(s) 337–338

    MeSH term(s) COVID-19 ; Humans ; Leadership
    Language English
    Publishing date 2022-09-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 427362-x
    ISSN 0026-6620
    ISSN 0026-6620
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Why Hippocampal Glutamate Levels Are Elevated in Schizophrenia.

    Guo, Jia / Rothman, Douglas L / Small, Scott A

    JAMA psychiatry

    2023  Volume 80, Issue 3, Page(s) 274–275

    MeSH term(s) Humans ; Glutamic Acid ; Schizophrenia ; Hippocampus
    Chemical Substances Glutamic Acid (3KX376GY7L)
    Language English
    Publishing date 2023-01-25
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2701203-7
    ISSN 2168-6238 ; 2168-622X
    ISSN (online) 2168-6238
    ISSN 2168-622X
    DOI 10.1001/jamapsychiatry.2022.3849
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article ; Online: Understanding the endo-lysosomal network in neurodegeneration.

    Cullen, Peter J / Holstege, Henne / Small, Scott A / St George-Hyslop, Peter

    Philosophical transactions of the Royal Society of London. Series B, Biological sciences

    2024  Volume 379, Issue 1899, Page(s) 20220372

    MeSH term(s) Humans ; Lysosomes ; Alzheimer Disease
    Language English
    Publishing date 2024-02-19
    Publishing country England
    Document type Journal Article
    ZDB-ID 208382-6
    ISSN 1471-2970 ; 0080-4622 ; 0264-3839 ; 0962-8436
    ISSN (online) 1471-2970
    ISSN 0080-4622 ; 0264-3839 ; 0962-8436
    DOI 10.1098/rstb.2022.0372
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article ; Online: Retromer-dependent lysosomal stress in Parkinson's disease.

    Alessi, Dario R / Cullen, Peter J / Cookson, Mark / Merchant, Kalpana M / Small, Scott A

    Philosophical transactions of the Royal Society of London. Series B, Biological sciences

    2024  Volume 379, Issue 1899, Page(s) 20220376

    Abstract: While causative mutations in complex disorders are rare, they can be used to extract a biological pathway whose pathogenicity can generalize to common forms of the disease. Here we begin by relying on the biological consequences of mutations in LRRK2 and ...

    Abstract While causative mutations in complex disorders are rare, they can be used to extract a biological pathway whose pathogenicity can generalize to common forms of the disease. Here we begin by relying on the biological consequences of mutations in LRRK2 and VPS35, genetic causes of autosomal-dominant Parkinson's disease, to hypothesize that 'Retromer-dependent lysosomal stress' represents a pathway that can generalize to idiopathic Parkinson's disease. Next, we outline a series of studies that can test this hypothesis, including the development of biomarkers of pathway dysfunction. If validated, the hypothesis can suggest a unified mechanism of disease and might inform future diagnostic and therapeutic investigations. This article is part of a discussion meeting issue 'Understanding the endo-lysosomal network in neurodegeneration'.
    MeSH term(s) Humans ; Parkinson Disease/genetics ; Parkinson Disease/metabolism ; Vesicular Transport Proteins/genetics ; Vesicular Transport Proteins/metabolism ; Mutation ; Lysosomes/metabolism
    Chemical Substances Vesicular Transport Proteins
    Language English
    Publishing date 2024-02-19
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 208382-6
    ISSN 1471-2970 ; 0080-4622 ; 0264-3839 ; 0962-8436
    ISSN (online) 1471-2970
    ISSN 0080-4622 ; 0264-3839 ; 0962-8436
    DOI 10.1098/rstb.2022.0376
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article ; Online: Endosomal recycling reconciles the Alzheimer's disease paradox.

    Small, Scott A / Petsko, Gregory A

    Science translational medicine

    2020  Volume 12, Issue 572

    Abstract: A hub-and-spoke model with endosomal recycling as the hub can reconcile the pathogenic contribution of amyloid precursor protein to Alzheimer's disease. ...

    Abstract A hub-and-spoke model with endosomal recycling as the hub can reconcile the pathogenic contribution of amyloid precursor protein to Alzheimer's disease.
    MeSH term(s) Alzheimer Disease ; Amyloid beta-Peptides ; Amyloid beta-Protein Precursor ; Endosomes ; Humans
    Chemical Substances Amyloid beta-Peptides ; Amyloid beta-Protein Precursor
    Language English
    Publishing date 2020-12-02
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2518854-9
    ISSN 1946-6242 ; 1946-6234
    ISSN (online) 1946-6242
    ISSN 1946-6234
    DOI 10.1126/scitranslmed.abb1717
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: A deep learning MRI approach outperforms other biomarkers of prodromal Alzheimer's disease.

    Feng, Xinyang / Provenzano, Frank A / Small, Scott A

    Alzheimer's research & therapy

    2022  Volume 14, Issue 1, Page(s) 45

    Abstract: Background: The three core pathologies of Alzheimer's disease (AD) are amyloid pathology, tau pathology, and neurodegeneration. Biomarkers exist for each. Neurodegeneration is often detected by neuroimaging, and we hypothesized that a voxel-based deep ... ...

    Abstract Background: The three core pathologies of Alzheimer's disease (AD) are amyloid pathology, tau pathology, and neurodegeneration. Biomarkers exist for each. Neurodegeneration is often detected by neuroimaging, and we hypothesized that a voxel-based deep learning approach using structural MRI might outperform other neuroimaging methods.
    Methods: First, we implement an MRI-based deep learning model, trained with a data augmentation strategy, which classifies Alzheimer's dementia and generates class activation maps. Next, we tested the model in prodromal AD and compared its performance to other biomarkers of amyloid pathology, tau pathology, and neuroimaging biomarkers of neurodegeneration.
    Results: The model distinguished between controls and AD with high accuracy (AUROC = 0.973) with class activation maps that localized to the hippocampal formation. As hypothesized, the model also outperformed other neuroimaging biomarkers of neurodegeneration in prodromal AD (AUROC = 0.788) but also outperformed biomarkers of amyloid (CSF Aβ = 0.702) or tau pathology (CSF tau = 0.682), and the findings are interpreted in the context of AD's known anatomical biology.
    Conclusions: The advantages of using deep learning to extract biomarker information from conventional MRIs extend practically, potentially reducing patient burden, risk, and cost.
    MeSH term(s) Alzheimer Disease/diagnostic imaging ; Alzheimer Disease/pathology ; Biomarkers ; Deep Learning ; Humans ; Magnetic Resonance Imaging ; Neuroimaging/methods
    Chemical Substances Biomarkers
    Language English
    Publishing date 2022-03-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 2506521-X
    ISSN 1758-9193 ; 1758-9193
    ISSN (online) 1758-9193
    ISSN 1758-9193
    DOI 10.1186/s13195-022-00985-x
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article ; Online: Device-Measured Physical Activity in 3506 Individuals with Knee or Hip Arthroplasty.

    Small, Scott R / Khalid, Sara / Price, Andrew J / Doherty, Aiden

    Medicine and science in sports and exercise

    2023  Volume 56, Issue 5, Page(s) 805–812

    Abstract: Purpose: Hip and knee arthroplasty aims to reduce joint pain and increase functional mobility in patients with osteoarthritis; however, the degree to which arthroplasty is associated with higher physical activity is unclear. The current study sought to ... ...

    Abstract Purpose: Hip and knee arthroplasty aims to reduce joint pain and increase functional mobility in patients with osteoarthritis; however, the degree to which arthroplasty is associated with higher physical activity is unclear. The current study sought to assess the association of hip and knee arthroplasty with objectively measured physical activity.
    Methods: This cross-sectional study analyzed wrist-worn accelerometer data collected in 2013-2016 from UK Biobank participants (aged 43-78 yr). Multivariable linear regression was performed to assess step count, cadence, overall acceleration, and activity behaviors between nonarthritic controls, end-stage arthritic, and postoperative cohorts, controlling for demographic and behavioral confounders. From a cohort of 94,707 participants with valid accelerometer wear time and complete self-reported data, electronic health records were used to identify 3506 participants having undergone primary or revision hip or knee arthroplasty and 68,389 nonarthritic controls.
    Results: End-stage hip or knee arthritis was associated with taking 1129 fewer steps per day (95% confidence interval (CI), 811-1447; P < 0.001) and having 5.8 fewer minutes per day (95% CI, 3.0-8.7; P < 0.001) of moderate-to-vigorous activity compared with nonarthritic controls. Unilateral primary hip and knee arthroplasties were associated with 877 (95% CI, 284-1471; P = 0.004) and 893 (95% CI, 232-1554; P = 0.008) more steps than end-stage osteoarthritic participants, respectively. Postoperative unilateral hip arthroplasty participants demonstrated levels of moderate-to-vigorous physical activity and daily step count equivalent to nonarthritic controls. No difference in physical activity was observed between any cohorts in terms of overall acceleration, or time spent in daily light activity, sedentary behavior, or sleep.
    Conclusions: Hip and knee arthroplasties are associated with higher levels of physical activity compared with participants with end-stage arthritis. Unilateral hip arthroplasty patients, in particular, demonstrate equivalence to nonarthritic peers at more than 1 yr after surgery.
    MeSH term(s) Humans ; Arthroplasty, Replacement, Knee ; Arthroplasty, Replacement, Hip ; Cross-Sectional Studies ; Exercise ; Osteoarthritis, Knee/surgery
    Language English
    Publishing date 2023-12-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603994-7
    ISSN 1530-0315 ; 0195-9131 ; 0025-7990
    ISSN (online) 1530-0315
    ISSN 0195-9131 ; 0025-7990
    DOI 10.1249/MSS.0000000000003365
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: On the causal role of retromer-dependent endosomal recycling in Alzheimer's disease.

    Young, Jessica E / Holstege, Henne / Andersen, Olav M / Petsko, Gregory A / Small, Scott A

    Nature cell biology

    2023  Volume 25, Issue 10, Page(s) 1394–1397

    MeSH term(s) Humans ; Alzheimer Disease ; Endosomes/metabolism ; Protein Transport
    Language English
    Publishing date 2023-10-05
    Publishing country England
    Document type Journal Article
    ZDB-ID 1474722-4
    ISSN 1476-4679 ; 1465-7392
    ISSN (online) 1476-4679
    ISSN 1465-7392
    DOI 10.1038/s41556-023-01245-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article ; Online: Anatomical biology guides a search for nutrients for the aging brain.

    Lauriola, Vincenzo / Brickman, Adam M / Sloan, Richard P / Small, Scott A

    Molecular aspects of medicine

    2022  Volume 89, Page(s) 101154

    Abstract: Considerable evidence has established the importance of specific nutrients that have been found vital for the developing brain. We hypothesize that in a similar manner there should be nutrients vital to the aging brain and that based on aging's distinct ... ...

    Abstract Considerable evidence has established the importance of specific nutrients that have been found vital for the developing brain. We hypothesize that in a similar manner there should be nutrients vital to the aging brain and that based on aging's distinct pathophysiology they should be different than those essential to development. Specific brain networks that govern cognition are particularly vulnerable to the aging process, resulting in what is referred to as 'cognitive aging'. Common late-life disorders, however, such as Alzheimer's disease also target these same brain networks. Studies have disambiguated cognitive aging from late-life disease by isolating regions and biological pathways within each network differentially linked to one or the other. This anatomical biology anchors a framework to identify nutrients and/or dietary bioactives relevant to cognitive aging whose utility is illustrated via a decades-long research program into how dietary bioactive flavanols benefit the brain. As we are living longer in cognitively more demanding lives, the framework's ultimate goal is to generate specific dietary recommendations that will fortify our mind for its golden years.
    MeSH term(s) Humans ; Brain/metabolism ; Aging ; Alzheimer Disease/metabolism ; Nutrients ; Biology ; Cognition
    Language English
    Publishing date 2022-11-10
    Publishing country England
    Document type Journal Article ; Review ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 197640-0
    ISSN 1872-9452 ; 0098-2997
    ISSN (online) 1872-9452
    ISSN 0098-2997
    DOI 10.1016/j.mam.2022.101154
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top