The Role of Oxytocin in Alzheimer’s Disease and Its Relationship with Social Interaction DOI Creative Commons
Junpei Takahashi, Daisuke Yamada,

Wakana Nagano

et al.

Cells, Journal Year: 2023, Volume and Issue: 12(20), P. 2426 - 2426

Published: Oct. 10, 2023

Alzheimer’s disease (AD)—the most common cause of dementia in the elderly—is characterized by progressive memory loss and β-amyloid protein (Aβ) accumulation brain. Recently, loneliness was found to be a high risk factor for AD, social isolation has become major AD. Oxytocin (OXT), main hormone involved bonding, been implicated interactions, notably building trust relationships. Moreover, or enrichment modulates activation neurons related OXT. we reported that OXT reverses learning impairment AD animal models. Based on limited number studies currently available, might therapeutic target Further are necessary order better understand role oxytocin In this review, described relationships between OXT, interaction.

Language: Английский

Lecanemab, Aducanumab, and Gantenerumab — Binding Profiles to Different Forms of Amyloid-Beta Might Explain Efficacy and Side Effects in Clinical Trials for Alzheimer's Disease DOI Creative Commons

Linda Söderberg,

Malin Johannesson,

Patrik Nygren

et al.

Neurotherapeutics, Journal Year: 2022, Volume and Issue: 20(1), P. 195 - 206

Published: Oct. 17, 2022

Immunotherapy against amyloid-beta (Aβ) is a promising option for the treatment of Alzheimer's disease (AD). Aβ exists as various species, including monomers, oligomers, protofibrils, and insoluble fibrils in plaques. Oligomers protofibrils have been shown to be toxic, removal these aggregates might represent an effective AD. We characterized binding properties lecanemab, aducanumab, gantenerumab different species with inhibition ELISA, immunodepletion, surface plasmon resonance. All three antibodies bound monomers low affinity. However, lecanemab aducanumab had very weak somewhat stronger binding. Lecanemab was distinctive it tenfold compared fibrils. Aducanumab preferred over protofibrils. Our results show profiles that may explain clinical observed regarding both efficacy side effects.

Language: Английский

Citations

258

Alzheimer’s Disease: Treatment Strategies and Their Limitations DOI Open Access
Elodie Passeri, Kamil Elkhoury, Margaretha Morsink

et al.

International Journal of Molecular Sciences, Journal Year: 2022, Volume and Issue: 23(22), P. 13954 - 13954

Published: Nov. 12, 2022

Alzheimer’s disease (AD) is the most frequent case of neurodegenerative and becoming a major public health problem all over world. Many therapeutic strategies have been explored for several decades; however, there still no curative treatment, priority remains prevention. In this review, we present an update on clinical physiological phase AD spectrum, modifiable non-modifiable risk factors treatment with focus prevention strategies, then research models used in AD, followed by discussion limitations. The methods can significantly slow evolution are currently best strategy possible before advanced stages disease. Indeed, current drug treatments only symptomatic effects, disease-modifying not yet available. Drug delivery to central nervous system complex process represents challenge developing preventive strategies. Studies underway test new techniques facilitate bioavailability molecules brain. After deep study literature, find use soft nanoparticles, particular nanoliposomes exosomes, as innovative approach reducing solving problems brain bioavailability. show promising role exosomes smart systems able penetrate blood–brain barrier target tissues. Finally, different administration neurological disorders discussed. One intranasal which should be preclinical studies diseases.

Language: Английский

Citations

255

Anti-Amyloid Monoclonal Antibodies are Transformative Treatments that Redefine Alzheimer's Disease Therapeutics DOI Creative Commons
Jeffrey L. Cummings

Drugs, Journal Year: 2023, Volume and Issue: 83(7), P. 569 - 576

Published: April 15, 2023

Two anti-amyloid monoclonal antibodies (MABs)—lecanemab (Leqembi®) and aducanumab (Aduhelm®)—have been approved in the USA for treatment of Alzheimer's disease (AD). Anti-amyloid are first disease-modifying therapies AD that achieve slowing clinical decline by intervening basic biological processes disease. These breakthrough agents can slow inevitable progression into more severe cognitive impairment. The results trials MABs support amyloid hypothesis as a target drug development. success reflects relentless application neuroscience knowledge to solving major challenges facing humankind. these transformative will foster development MABs, other types therapies, treatments targets biology, new approaches an array neurodegenerative disorders. Monoclonal have side effects and, during period initiation, patients must be closely monitored occurrence amyloid-related imaging abnormalities (ARIA) infusion reactions. A successful step therapy defines desirable features next phase therapeutic including less frequent ARIA, convenient administration, greater efficacy. Unprecedented make demands on care partners, clinicians, payers, health systems. Collaboration among stakeholders is essential take advantage benefits offered them widely available. usher era define landscape what possible

Language: Английский

Citations

143

The duality of amyloid-β: its role in normal and Alzheimer’s disease states DOI Creative Commons
Ali Azargoonjahromi

Molecular Brain, Journal Year: 2024, Volume and Issue: 17(1)

Published: July 17, 2024

Abstract Alzheimer’s disease (AD) is a degenerative neurological condition that gradually impairs cognitive abilities, disrupts memory retention, and impedes daily functioning by impacting the cells of brain. A key characteristic AD accumulation amyloid-beta (Aβ) plaques, which play pivotal roles in progression. These plaques initiate cascade events including neuroinflammation, synaptic dysfunction, tau pathology, oxidative stress, impaired protein clearance, mitochondrial disrupted calcium homeostasis. Aβ also closely associated with other hallmark features AD, underscoring its significance. generated through cleavage amyloid precursor (APP) plays dual role depending on processing pathway. The non-amyloidogenic pathway reduces production has neuroprotective anti-inflammatory effects, whereas amyloidogenic leads to peptides, Aβ40 Aβ42, contribute neurodegeneration toxic effects AD. Understanding multifaceted Aβ, particularly crucial for developing effective therapeutic strategies target metabolism, aggregation, clearance aim mitigating detrimental consequences disease. This review aims explore mechanisms functions under normal abnormal conditions, examining both beneficial effects.

Language: Английский

Citations

19

Dendrimers for drug delivery: An overview of its classes, synthesis, and applications DOI
Rahul Sarode, Hitendra S. Mahajan

Journal of Drug Delivery Science and Technology, Journal Year: 2024, Volume and Issue: 98, P. 105896 - 105896

Published: June 15, 2024

Language: Английский

Citations

17

Artificial Intelligence for Alzheimer’s Disease: Promise or Challenge? DOI Creative Commons
Carlo Fabrizio, Andrea Termine, Carlo Caltagirone

et al.

Diagnostics, Journal Year: 2021, Volume and Issue: 11(8), P. 1473 - 1473

Published: Aug. 14, 2021

Decades of experimental and clinical research have contributed to unraveling many mechanisms in the pathogenesis Alzheimer's disease (AD), but puzzle is still incomplete. Although we can suppose that there no complete set pieces, recent growth open data-sharing initiatives collecting lifestyle, clinical, biological data from AD patients has provided a potentially unlimited amount information about disease, far exceeding human ability make sense it. Moreover, integrating Big Data multi-omics studies provides potential explore pathophysiological entire continuum AD. In this context, Artificial Intelligence (AI) offers wide variety methods analyze large complex order improve knowledge field. review, focus on findings future challenges for AI research. particular, discuss use Computer-Aided Diagnosis tools diagnosis support practices prediction individual risk conversion as well patient stratification finally develop effective personalized therapies.

Language: Английский

Citations

89

Linking the Amyloid, Tau, and Mitochondrial Hypotheses of Alzheimer’s Disease and Identifying Promising Drug Targets DOI Creative Commons
Zdeněk Fišar

Biomolecules, Journal Year: 2022, Volume and Issue: 12(11), P. 1676 - 1676

Published: Nov. 11, 2022

Damage or loss of brain cells and impaired neurochemistry, neurogenesis, synaptic nonsynaptic plasticity the lead to dementia in neurodegenerative diseases, such as Alzheimer's disease (AD). Injury synapses neurons accumulation extracellular amyloid plaques intracellular neurofibrillary tangles are considered main morphological neuropathological features AD. Age, genetic epigenetic factors, environmental stressors, lifestyle contribute risk AD onset progression. These factors associated with structural functional changes brain, leading cognitive decline. Biomarkers reflect cause specific function, especially pathways neurotransmission, neuroinflammation, bioenergetics, apoptosis, oxidative nitrosative stress. Even initial stages, is Aβ neurotoxicity, mitochondrial dysfunction, tau neurotoxicity. The integrative amyloid-tau-mitochondrial hypothesis assumes that primary neurotoxicity oligomers oligomers, their mutual synergy. For development new efficient drugs, targeting elimination potentiation effects, unwanted protein interactions biomarkers (mainly dysfunction) early stage seems promising.

Language: Английский

Citations

53

The Single Toxin Origin of Alzheimer’s Disease and Other Neurodegenerative Disorders Enables Targeted Approach to Treatment and Prevention DOI Open Access
Martin Tolar, John A. Hey,

Aidan Power

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(5), P. 2727 - 2727

Published: Feb. 27, 2024

New data suggest that the aggregation of misfolded native proteins initiates and drives pathogenic cascade leads to Alzheimer's disease (AD) other age-related neurodegenerative disorders. We propose a unifying single toxin theory brain neurodegeneration identifies new targets approaches development disease-modifying treatments. An extensive body genetic evidence suggests soluble aggregates beta-amyloid (Aβ) as primary neurotoxin in pathogenesis AD. insights from fluid biomarkers, imaging, clinical studies provide further for decisive impact toxic Aβ species initiation progression Understanding distinct roles insoluble amyloid on AD has been key missing piece puzzle. Data trials with anti-amyloid agents recent advances diagnosis demonstrate driving insult biologically defined is neurotoxicity aggregates, called oligomers protofibrils, rather than relatively inert mature fibrils plaques. Amyloid appear be factor causing synaptic impairment, neuronal stress, spreading tau pathology, eventual cell death lead syndrome dementia. All biochemical effects changes are observed response or downstream effect this initial by oligomers. Other disorders follow similar pattern pathogenesis, which normal important biological functions become trapped aging due impaired clearance then misfold aggregate into neurotoxic exhibit prion-like behavior. These spread through cause disease-specific neurodegeneration. Targeting inhibition step blocking misfolding healthy potential slow arrest progression, if treatment administered early course disorders, it may delay prevent onset symptoms.

Language: Английский

Citations

10

Point of view: Challenges in implementation of new immunotherapies for Alzheimer's disease DOI Creative Commons
Sandar Aye, Gunilla Johansson,

Christoph Höck

et al.

The Journal of Prevention of Alzheimer s Disease, Journal Year: 2025, Volume and Issue: 12(1), P. 100022 - 100022

Published: Jan. 1, 2025

The advancement of disease-modifying treatments (DMTs) for Alzheimer's disease (AD), along with the approval three amyloid-targeting therapies in US and several other countries, represents a significant development treatment landscape, offering new hope addressing this once untreatable chronic progressive disease. However, challenges persist that could impede successful integration class drugs into clinical practice. These include determining patient eligibility, appropriate use diagnostic tools genetic testing care pathways, effective detection monitoring side effects, improving healthcare system's readiness by engaging both primary dementia specialists. Additionally, there are logistical concerns related to infrastructure, as well cost-effectiveness reimbursement issues. This article brings together insights from diverse group international researchers experts outlines potential opportunities, urging all stakeholders prepare introduction DMTs. We emphasize need develop criteria, including characteristics, specifically European system, ensure administered most suitable patients. It is crucial improve skills knowledge physicians accurately interpret biomarker results, share decision-making patients, recognize treatment-related monitor long-term treatment. advocate investment registries unbiased follow-up studies better understand effectiveness, evaluate optimize Utilizing starting point combination should also be priority.

Language: Английский

Citations

1

Biofluid biomarker changes following treatment with sabirnetug (ACU193) in INTERCEPT-AD, a phase 1 trial in early Alzheimer's disease DOI Creative Commons
Erika N. Cline, Daniel Antwi‐Berko,

Karen Sundell

et al.

The Journal of Prevention of Alzheimer s Disease, Journal Year: 2025, Volume and Issue: unknown, P. 100082 - 100082

Published: Feb. 1, 2025

Language: Английский

Citations

1