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JOURNAL ARTICLE
Farjana Parvin, Samuel Haglund, Bettina Wegenast-Braun, Mathias Jucker, Takashi Saito, Takaomi C Saido, K Peter R Nilsson, Per Nilsson, Sofie Nyström, Per Hammarström
Amyloid plaques composed of fibrils of misfolded Aβ peptides are pathological hallmarks of Alzheimer's disease (AD). Aβ fibrils are polymorphic in their tertiary and quaternary molecular structures. This structural polymorphism may carry different pathologic potencies and can putatively contribute to clinical phenotypes of AD. Therefore, mapping of structural polymorphism of Aβ fibrils and structural evolution over time is valuable to understanding disease mechanisms. Here, we investigated how Aβ fibril structures in situ differ in Aβ plaque of different mouse models expressing familial mutations in the AβPP gene...
April 23, 2024: ACS Chemical Neuroscience
#2
JOURNAL ARTICLE
Liza L Behrens, Hannah L Anderson, Kaléi H Kowalchik, Jacqueline Mogle, Joanne Roman Jones, Kimberly Van Haitsma, Nancy Hodgson, Marie Boltz
BACKGROUND: Persons living with Alzheimer's disease and related dementia (ADRD) in nursing homes (NH) are often excluded from conversations about their health/safety. These omissions impinge on personhood and the rights to have care preferences heard and honored. While persons with ADRD maintain the ability to communicate their preferences long after their decision-making abilities are affected, little is known about how persons with ADRD understand the risks associated with their preferences...
April 23, 2024: Alzheimer Disease and Associated Disorders
#3
REVIEW
Francisco José Rodríguez-Alcázar, Raúl Juárez-Vela, Juan Luis Sánchez-González, Javier Martín-Vallejo
Introduction : Chronic non-communicable diseases, including diseases of mental origin such as Alzheimer's, affect all age groups and countries. These diseases have a major impact on the patient and their family environment. It is interesting that different questionnaires are measured in the same direction, given that different health questionnaires are used to measure caregiver burden. Objectives : To identify which type of intervention is the most appropriate to improve the health of the primary caregiver in patients with dementia...
April 15, 2024: Nursing Reports
#4
JOURNAL ARTICLE
Rei Murakami, Hirotaka Watanabe, Hideko Hashimoto, Mayu Kashiwagi-Hakozaki, Tadafumi Hashimoto, Celeste M Karch, Takeshi Iwatsubo, Hideyuki Okano
Genetic variants in the apolipoprotein E ( APOE ) gene affect the onset and progression of Alzheimer's disease (AD). The APOE Christchurch ( APOE Ch) variant has been identified as the most prominent candidate for preventing the onset and progression of AD. In this study, we generated isogenic APOE3 Ch/ 3 Ch human induced pluripotent stem cells (iPSCs) from APOE3 / 3 healthy control female iPSCs and induced them into astrocytes. RNA expression analysis revealed the inherent resilience of APOE3 Ch/ 3 Ch astrocytes to induce a reactive state in response to inflammatory cytokines...
April 22, 2024: Journal of Neuroscience
#5
JOURNAL ARTICLE
Henry C Barry
No abstract text is available yet for this article.
April 2024: American Family Physician
#6
JOURNAL ARTICLE
Rong-Rong Lin, Lu-Lu Jin, Yan-Yan Xue, Zhe-Sheng Zhang, Hui-Feng Huang, Dian-Fu Chen, Qian Liu, Zheng-Wei Mao, Zhi-Ying Wu, Qing-Qing Tao
The blood brain barrier (BBB) limits the application of most therapeutic drugs for neurological diseases (NDs). Hybrid cell membrane-coated nanoparticles derived from different cell types can mimic the surface properties and functionalities of the source cells, further enhancing their targeting precision and therapeutic efficacy. Neuroinflammation has been increasingly recognized as a critical factor in the pathogenesis of various NDs, especially Alzheimer's disease (AD). In this study, a novel cell membrane coating is designed by hybridizing the membrane from platelets and chemokine (C-C motif) receptor 2 (CCR2) cells are overexpressed to cross the BBB and target neuroinflammatory lesions...
April 22, 2024: Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
#7
JOURNAL ARTICLE
Fang Zheng, Marc Dahlmanns, Philipp Kessler, Christian Alzheimer
Activin A, a member of the transforming growth factor β (TGF-β) family, is widely recognized for its neurotrophic and neuroprotective function in the developing and injured brain, respectively. Moreover, in the healthy adult brain, activin A has been shown to tune signal processing at excitatory synapses in a fashion that improves cognitive performance. Because its level in human cerebrospinal fluid rises with age, we wondered whether activin A has a role in mitigating the gradual cognitive decline that healthy individuals experience in late-life...
2024: Frontiers in Aging Neuroscience
#8
JOURNAL ARTICLE
Mohsina Patwekar, Faheem Patwekar, Shahzad Khan, Rohit Sharma, Dileep Kumar
A variety of cutting-edge methods and good knowledge of the illness's complex causes are causing a sea change in the field of Alzheimer's Disease (A.D.) research and treatment. Precision medicine is at the vanguard of this change, where individualized treatment plans based on genetic and biomarker profiles give a ray of hope for customized therapeutics. Combination therapies are becoming increasingly popular as a way to address the multifaceted pathology of Alzheimer's by simultaneously attacking Aβ plaques, tau tangles, neuroinflammation, and other factors...
April 19, 2024: Current Topics in Medicinal Chemistry
#9
JOURNAL ARTICLE
Dana P Urbanski, Jack M Wolf, Benjamin W Langworthy, Romil R Parikh, Eric Jutkowitz, Tetyana P Shippee
OBJECTIVES: Hearing aids have important health benefits for older adults with Alzheimer disease and related dementias (ADRD); however, hearing aid adoption in this group is low. This study aimed to determine where to target hearing aid interventions for American long-term care recipients with ADRD by examining the association of ADRD and residence type with respondent-reported unmet hearing aid need. DESIGN, SETTING, AND PARTICIPANTS: This cross-sectional study used data from the United States National Core Indicators-Aging and Disabilities survey (2015-2019) for long-term care recipients aged ≥65 years...
April 18, 2024: Journal of the American Medical Directors Association
#10
JOURNAL ARTICLE
Stefanie Fruhwürth, Henrik Zetterberg, Søren R Paludan
Alzheimer's disease (AD) is a neurodegenerative disease characterized by cognitive decline that severely affects patients and their families. Genetic and environmental risk factors, such as viral infections, synergize to accelerate the aging-associated neurodegeneration. Genetic risk factors for late-onset AD (LOAD), which accounts for most AD cases, are predominantly implicated in microglial and immune cell functions. As such, microglia play a major role in formation of amyloid beta (Aβ) plaques, the major pathological hallmark of AD...
April 4, 2024: Journal of Neuroimmunology
#11
JOURNAL ARTICLE
Noa Rachmian, Sedi Medina, Ulysse Cherqui, Hagay Akiva, Daniel Deitch, Dunya Edilbi, Tommaso Croese, Tomer Meir Salame, Javier Maria Peralta Ramos, Liora Cahalon, Valery Krizhanovsky, Michal Schwartz
Alzheimer's disease (AD) and dementia in general are age-related diseases with multiple contributing factors, including brain inflammation. Microglia, and specifically those expressing the AD risk gene TREM2, are considered important players in AD, but their exact contribution to pathology remains unclear. In this study, using high-throughput mass cytometry in the 5×FAD mouse model of amyloidosis, we identified senescent microglia that express high levels of TREM2 but also exhibit a distinct signature from TREM2-dependent disease-associated microglia (DAM)...
April 18, 2024: Nature Neuroscience
#12
JOURNAL ARTICLE
Brett M Frye, Jacob D Negrey, Corbin S C Johnson, Jeongchul Kim, Richard A Barcus, Samuel N Lockhart, Christopher T Whitlow, Kenneth L Chiou, Noah Snyder-Mackler, Thomas J Montine, Suzanne Craft, Carol A Shively, Thomas C Register
Mediterranean diets may be neuroprotective and prevent cognitive decline relative to Western diets, however the underlying biology is poorly understood. We assessed the effects of Western versus Mediterranean-like diets on RNAseq-generated transcriptional profiles in lateral temporal cortex and their relationships with longitudinal changes in neuroanatomy, circulating monocyte gene expression, and observations of social isolation and anxiety in 38 socially-housed, middle-aged female cynomolgus macaques (Macaca fascicularis)...
April 16, 2024: Brain, Behavior, and Immunity
#13
JOURNAL ARTICLE
Tingjun Dai, Jianwei Lou, Deyuan Kong, Jinyu Li, Qingguo Ren, Yujing Chen, Sujuan Sun, Yan Yun, Xiaohan Sun, Yiru Yang, Kai Shao, Wei Li, Yuying Zhao, Xiangshui Meng, Chuanzhu Yan, Pengfei Lin, Shuangwu Liu
BACKGROUND: Using in vivo neuroimaging techniques, growing evidence has demonstrated that the choroid plexus (CP) volume is enlarged in patients with several neurodegenerative diseases, including Alzheimer's disease and Parkinson's disease. However, although animal and postmortem findings suggest that CP abnormalities are likely important pathological mechanisms underlying amyotrophic lateral sclerosis (ALS), the third most common neurodegenerative disease, no available study has been conducted to thoroughly assess CP abnormalities and their clinical relevance in vivo in ALS patients to date...
April 17, 2024: Fluids and Barriers of the CNS
#14
JOURNAL ARTICLE
Julie K Wisch, Nicole S McKay, Anna H Boerwinkle, James Kennedy, Shaney Flores, Benjamin L Handen, Bradley T Christian, Elizabeth Head, Mark Mapstone, Michael S Rafii, Sid E O'Bryant, Julie C Price, Charles M Laymon, Sharon J Krinsky-McHale, Florence Lai, H Diana Rosas, Sigan L Hartley, Shahid Zaman, Ira T Lott, Dana Tudorascu, Matthew Zammit, Adam M Brickman, Joseph H Lee, Thomas D Bird, Annie Cohen, Patricio Chrem, Alisha Daniels, Jasmeer P Chhatwal, Carlos Cruchaga, Laura Ibanez, Mathias Jucker, Celeste M Karch, Gregory S Day, Jae-Hong Lee, Johannes Levin, Jorge Llibre-Guerra, Yan Li, Francisco Lopera, Jee Hoon Roh, John M Ringman, Charlene Supnet-Bell, Christopher H van Dyck, Chengjie Xiong, Guoqiao Wang, John C Morris, Eric McDade, Randall J Bateman, Tammie L S Benzinger, Brian A Gordon, Beau M Ances
BACKGROUND: In people with genetic forms of Alzheimer's disease, such as in Down syndrome and autosomal-dominant Alzheimer's disease, pathological changes specific to Alzheimer's disease (ie, accumulation of amyloid and tau) occur in the brain at a young age, when comorbidities related to ageing are not present. Studies including these cohorts could, therefore, improve our understanding of the early pathogenesis of Alzheimer's disease and be useful when designing preventive interventions targeted at disease pathology or when planning clinical trials...
May 2024: Lancet Neurology
#15
JOURNAL ARTICLE
Qiping Fan, Minh-Nguyet Hoang, Logan DuBose, Marcia G Ory, Jeswin Vennatt, Diana Salha, Shinduk Lee, Tokunbo Falohun
BACKGROUND: The increasing prevalence of Alzheimer disease and Alzheimer disease-related dementia in the United States has amplified the health care burden and caregiving challenges, especially for caregivers of people living with dementia. A web-based care planning tool, Olera.care, was developed to aid caregivers in managing common challenges associated with dementia care. OBJECTIVE: This study aims to preliminarily evaluate the quality and usability of the Olera...
April 17, 2024: JMIR aging
#16
JOURNAL ARTICLE
Cynthia Yi-An Chen, Chih-Chiang Chiu, Cho-Yin Huang, Ying-Chih Cheng, Ming-Chyi Huang, Po-Hsiu Kuo, Wen-Yin Chen
BACKGROUND: Cognitive impairment is a growing problem with increasing burden in global aging. Older adults with major depressive disorder (MDD) have higher risk of dementia. Neurofilament light chain (NfL) has been proven as a potential biomarker in neurodegenerative disease, including dementia. We aimed to investigate the association between cognitive deficits and NfL levels in older adults with MDD. METHODS: In this cross-sectional study, we enrolled 39 MDD patients and 15 individuals with mild neurocognitive disorder or major neurocognitive disorder, Alzheimer's type, as controls, from a tertiary psychiatric hospital...
April 16, 2024: BMC Geriatrics
#17
JOURNAL ARTICLE
Caitlin S Walker, Linda Li, Giulia Baracchini, Jennifer Tremblay-Mercier, R Nathan Spreng, Maiya R Geddes
OBJECTIVES: Generativity, the desire and action to improve the well-being of younger generations, is associated with purpose in life among older adults. However, the neurobehavioral factors supporting the relationship between generativity and purpose in life remain unknown. This study aims to identify the functional neuroanatomy of generativity and mechanisms linking generativity with purpose in life in at-risk older adults. METHODS: Fifty-eight older adults (mean age = 70...
April 16, 2024: Journals of Gerontology. Series B, Psychological Sciences and Social Sciences
#18
REVIEW
Cai-Hong Wang, Xiao-Tao Wei, Yong-Qiang Zhao, Dong-Hong Wang, Jian-Jun Xue, Zi-Qing Song, Feng Tang, Rong-Xin Liu, Chun-Ai Wang
Alzheimer's disease(AD), vascular dementia(VD), and traumatic brain injury(TBI) are more common cognitive impairment diseases characterized by high disability and mortality rates, imposing a heavy burden on individuals and their families. Although AD, VD, and TBI have different specific mechanisms, their pathogenesis is closely related to the nucleotide-binding oligome-rization domain-like receptor protein 3(NLRP3). The NLRP3 inflammasome is involved in neuroinflammatory responses, mediating microglial polarization, regulating the reduction of amyloid β-protein(Aβ) deposition, neurofibrillary tangles(NFTs) formation, autophagy regulation, and maintaining brain homeostasis, and synaptic stability, thereby contributing to the development of AD, VD, and TBI...
February 2024: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
#19
JOURNAL ARTICLE
Isabel Asp, Andrew T J Cawley-Bennett, Jennifer C Frascino, Shahrokh Golshan, Mark W Bondi, Christine N Smith
Robust and sensitive clinical measures are needed for more accurate and earlier detection of Alzheimer's disease (AD), for staging preclinical AD, and for gauging the efficacy of treatments. Mild impairment on episodic memory tests is thought to indicate a cognitive risk of developing AD and mild cognitive impairment (MCI), considered to be a transitional stage between normal aging and AD. Novel tests of semantic memory, such as memory for news events, are also impaired early on but have received little clinical attention even though they may provide a novel way to assess cognitive risk for AD...
April 13, 2024: Neuropsychologia
#20
JOURNAL ARTICLE
Divya Adiga, Sangavi Eswaran, S Sriharikrishnaa, Nadeem G Khan, Dileep Kumar, Shama Prasada Kabekkodu
Alzheimer's disease (AD) is a multifactorial disorder resulting from the complex interaction between genetic, epigenetic, and environmental factors. It represents an impending epidemic and lacks effective pharmacological interventions. The emergence of high throughput sequencing techniques and comprehensive genome evaluation has uncovered a diverse spectrum of non-- coding RNA (ncRNA) families. ncRNAs are the critical modulators of an eclectic array of biological processes and are now transpiring as imperative players in diagnosing and treating various diseases, including neurodegenerative disorders...
April 9, 2024: Current Topics in Medicinal Chemistry
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