Due to the progressive aging of Korean society and the introduction of brain banks to the Korean medical system, the possibility that pathologists will have access to healthy elderly brains has increased. The histopathological analysis of an elderly brain from a subject with relatively well-preserved cognition is quite different from that of a brain from a demented subject. Additionally, the histology of elderly brains differs from that of young brains. This brief review discusses primary age-related tauopathy; this term was coined to describe elderly brains with Alzheimer’s diseasetype neurofibrillary tangles mainly confined to medial temporal structures, and no β-amyloid pathology.
Citations
Citations to this article as recorded by
Significance of a positive tau PET scan with a negative amyloid PET scan Carling G. Robinson, Jeyeon Lee, Paul H. Min, Scott A. Przybelski, Keith A. Josephs, David T. Jones, Jonathan Graff‐Radford, Bradley F. Boeve, David S. Knopman, Clifford R. Jack, Ronald C. Petersen, Mary M. Machulda, Julie A. Fields, Val J. Lowe Alzheimer's & Dementia.2024; 20(3): 1923. CrossRef
TDP-43 Is Associated with Subiculum and Cornu Ammonis 1 Hippocampal Subfield Atrophy in Primary Age-Related Tauopathy Hossam Youssef, Rodolfo G. Gatto, Nha Trang Thu Pham, Ronald C. Petersen, Mary M. Machulda, R. Ross Reichard, Dennis W. Dickson, Clifford R. Jack, Jennifer L. Whitwell, Keith A. Josephs Journal of Alzheimer's Disease.2024; 99(3): 1023. CrossRef
Clinical Significance of the Plasma Biomarker Panels in Amyloid-Negative and Tau PET-Positive Amnestic Patients: Comparisons with Alzheimer’s Disease and Unimpaired Cognitive Controls Hsin-I Chang, Kuo-Lun Huang, Chung-Gue Huang, Chi-Wei Huang, Shu-Hua Huang, Kun-Ju Lin, Chiung-Chih Chang International Journal of Molecular Sciences.2024; 25(11): 5607. CrossRef
Distinct biological property of tau in tau‐first cognitive proteinopathy: Evidence by longitudinal clinical neuroimaging profiles and compared with late‐onset Alzheimer disease Hsin‐I. Chang, Chi‐Wei Huang, Shu‐Hua Huang, Shih‐Wei Hsu, Kun‐Ju Lin, Tsung‐Ying Ho, Hsiu‐Chuan Wu, Chiung‐Chih Chang Psychiatry and Clinical Neurosciences.2024; 78(8): 446. CrossRef
Oligodendrocyte Dysfunction in Tauopathy: A Less Explored Area in Tau-Mediated Neurodegeneration Moumita Majumder, Debashis Dutta Cells.2024; 13(13): 1112. CrossRef
Hippocampal synaptic alterations associated with tau pathology in primary age-related tauopathy Meaghan Morris, Gabrielle I Coste, Javier Redding-Ochoa, Haidan Guo, Austin R Graves, Juan C Troncoso, Richard L Huganir Journal of Neuropathology & Experimental Neurology.2023; 82(10): 836. CrossRef
Abnormal tau in amyloid PET negative individuals Bora Yoon, Tengfei Guo, Karine Provost, Deniz Korman, Tyler J. Ward, Susan M. Landau, William J Jagust Neurobiology of Aging.2022; 109: 125. CrossRef
Intraneuronal sortilin aggregation relative to granulovacuolar degeneration, tau pathogenesis and sorfra plaque formation in human hippocampal formation Juan Jiang, Chen Yang, Jia-Qi Ai, Qi-Lei Zhang, Xiao-Lu Cai, Tian Tu, Lily Wan, Xiao-Sheng Wang, Hui Wang, Aihua Pan, Jim Manavis, Wei-Ping Gai, Chong Che, Ewen Tu, Xiao-Ping Wang, Zhen-Yan Li, Xiao-Xin Yan Frontiers in Aging Neuroscience.2022;[Epub] CrossRef
LATE: Nicht jede Demenz ist Alzheimer – Diskussion einer neuen Krankheitsentität am Fallbeispiel Doreen Görß, Ingo Kilimann, Martin Dyrba, Sascha Nitsch, Bernd Krause, Stefan Teipel Der Nervenarzt.2021; 92(1): 18. CrossRef
Alpha‐lipoic acid ameliorates tauopathy‐induced oxidative stress, apoptosis, and behavioral deficits through the balance of DIAP1/DrICE ratio and redox homeostasis: Age is a determinant factor Elahe Zarini-Gakiye, Nima Sanadgol, Kazem Parivar, Gholamhassan Vaezi Metabolic Brain Disease.2021; 36(4): 669. CrossRef
Implications for microglial sex differences in tau-related neurodegenerative diseases Yasmine V. Doust, Anna E. King, Jenna M. Ziebell Neurobiology of Aging.2021; 105: 340. CrossRef
G protein‐coupled receptor kinases are associated with Alzheimer's disease pathology Thais Rafael Guimarães, Eric Swanson, Julia Kofler, Amantha Thathiah Neuropathology and Applied Neurobiology.2021; 47(7): 942. CrossRef
Age and Dose-Dependent Effects of Alpha-Lipoic Acid on Human Microtubule- Associated Protein Tau-Induced Endoplasmic Reticulum Unfolded Protein Response: Implications for Alzheimer’s Disease Elahe Zarini-Gakiye, Gholamhassan Vaezi, Kazem Parivar, Nima Sanadgol CNS & Neurological Disorders - Drug Targets .2021; 20(5): 451. CrossRef
Primary age-related tauopathy in a Chinese cohort Xin Wang, Lei Zhang, Hui Lu, Juan-li Wu, Hua-zheng Liang, Chong Liu, Qing-qing Tao, Zhi-ying Wu, Ke-qing Zhu Journal of Zhejiang University-SCIENCE B.2020; 21(3): 256. CrossRef
Brain Aging, Cardiovascular Diseases, Mixed Dementia, and Frailty in the Oldest Old: From Brain Phenotype to Clinical Expression Gianmarco Rosa, Chiara Giannotti, Lucia Martella, Federico Massa, Gianluca Serafini, Matteo Pardini, Flavio Mariano Nobili, Fiammetta Monacelli, Patricia Mecocci Journal of Alzheimer's Disease.2020; 75(4): 1083. CrossRef
Extracellular Sortilin Proteopathy Relative to β-Amyloid and Tau in Aged and Alzheimer’s Disease Human Brains Tian Tu, Juan Jiang, Qi-Lei Zhang, Lily Wan, Ya-Nan Li, Aihua Pan, Jim Manavis, Xiao-Xin Yan Frontiers in Aging Neuroscience.2020;[Epub] CrossRef
A “Stress Test” of the 2018 NIA AA Research Criteria for Alzheimer’s Disease Helmut Hildebrandt, Andreas Kastrup, Paul Eling Zeitschrift für Neuropsychologie.2020; 31(1): 26. CrossRef
Evaluation of a visual interpretation method for tau‐PET with
18
F‐flortaucipir
Ida Sonni, Orit H. Lesman Segev, Suzanne L. Baker, Leonardo Iaccarino, Deniz Korman, Gil D. Rabinovici, William J. Jagust, Susan M. Landau, Renaud La Joie Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring.2020;[Epub] CrossRef
Contemporary approaches to clinical diagnosis and treatment of tau-protein accumulation related multisystem degenerations E.E. Vasenina, O.S. Levin Zhurnal nevrologii i psikhiatrii im. S.S. Korsakova.2020; 120(10): 22. CrossRef
Sporadic Creutzfeldt-Jakob Disease and Other Proteinopathies in Comorbidity Eva Parobkova, Julie van der Zee, Lubina Dillen, Christine Van Broeckhoven, Robert Rusina, Radoslav Matej Frontiers in Neurology.2020;[Epub] CrossRef
Early Dendritic Dystrophy in Human Brains With Primary Age-Related Tauopathy Yan-Bin Shi, Tian Tu, Juan Jiang, Qi-Lei Zhang, Jia-Qi Ai, Aihua Pan, Jim Manavis, Ewen Tu, Xiao-Xin Yan Frontiers in Aging Neuroscience.2020;[Epub] CrossRef
Background Stroke involving the cerebral white matter (WM) has increased in prevalence, but most experimental studies have focused on ischemic injury of the gray matter. This study was performed to investigate the WM in a unique rat model of photothrombotic infarct targeting the posterior limb of internal capsule (PLIC), focusing on the identification of the most vulnerable structure in WM by ischemic injury, subsequent glial reaction to the injury, and the fundamental histopathologic feature causing different neurologic outcomes.
Methods Light microscopy with immunohistochemical stains and electron microscopic examinations of the lesion were performed between 3 hours and 21 days post-ischemic injury.
Results Initial pathological change develops in myelinated axon, concomitantly with reactive change of astrocytes. The first pathology to present is nodular loosening to separate the myelin sheath with axonal wrinkling. Subsequent pathologies include rupture of the myelin sheath with extrusion of axonal organelles, progressive necrosis, oligodendrocyte degeneration and death, and reactive gliosis. Increase of glial fibrillary acidic protein (GFAP) immunoreactivity is an early event in the ischemic lesion. WM pathologies result in motor dysfunction. Motor function recovery after the infarct was correlated to the extent of PLIC injury proper rather than the infarct volume.
Conclusions Pathologic changes indicate that the cerebral WM, independent of cortical neurons, is highly vulnerable to the effects of focal ischemia, among which myelin sheath is first damaged. Early increase of GFAP immunoreactivity indicates that astrocyte response initially begins with myelinated axonal injury, and supports the biologic role related to WM injury or plasticity. The reaction of astrocytes in the experimental model might be important for the study of pathogenesis and treatment of the WM stroke.
Citations
Citations to this article as recorded by
Animal models of focal ischemic stroke: brain size matters Blazej Nowak, Piotr Rogujski, Raphael Guzman, Piotr Walczak, Anna Andrzejewska, Miroslaw Janowski Frontiers in Stroke.2023;[Epub] CrossRef
Motor Cortex Plasticity During Functional Recovery Following Brain Damage Noriyuki Higo Journal of Robotics and Mechatronics.2022; 34(4): 700. CrossRef
Neurodegeneration, Myelin Loss and Glial Response in the Three-Vessel Global Ischemia Model in Rat Tatiana Anan’ina, Alena Kisel, Marina Kudabaeva, Galina Chernysheva, Vera Smolyakova, Konstantin Usov, Elena Krutenkova, Mark Plotnikov, Marina Khodanovich International Journal of Molecular Sciences.2020; 21(17): 6246. CrossRef
Quantitative assessment of demyelination in ischemic stroke in vivo using macromolecular proton fraction mapping Marina Y Khodanovich, Alena A Kisel, Andrey E Akulov, Dmitriy N Atochin, Marina S Kudabaeva, Valentina Y Glazacheva, Michael V Svetlik, Yana A Medvednikova, Lilia R Mustafina, Vasily L Yarnykh Journal of Cerebral Blood Flow & Metabolism.2018; 38(5): 919. CrossRef
Immunosignals of Oligodendrocyte Markers and Myelin-Associated Proteins Are Critically Affected after Experimental Stroke in Wild-Type and Alzheimer Modeling Mice of Different Ages Dominik Michalski, Anna L. Keck, Jens Grosche, Henrik Martens, Wolfgang Härtig Frontiers in Cellular Neuroscience.2018;[Epub] CrossRef
Administration of Downstream ApoE Attenuates the Adverse Effect of Brain ABCA1 Deficiency on Stroke Xiaohui Wang, Rongwen Li, Alex Zacharek, Julie Landschoot-Ward, Fengjie Wang, Kuan-Han Hank Wu, Michael Chopp, Jieli Chen, Xu Cui International Journal of Molecular Sciences.2018; 19(11): 3368. CrossRef