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Condition: Alzheimer's
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Total 169 results found since Jan 2013.

Prediction of post-stroke cognitive impairment using brain FDG PET: deep learning-based approach
CONCLUSION: The DL-based cognitive signature using FDG PET was successfully transferred to an independent stroke cohort. It is suggested that DL-based cognitive evaluation using FDG PET could be utilized as an objective biomarker for cognitive dysfunction in patients with cerebrovascular diseases.PMID:34599654 | DOI:10.1007/s00259-021-05556-0
Source: Molecular Medicine - October 2, 2021 Category: Molecular Biology Authors: Reeree Lee Hongyoon Choi Kwang-Yeol Park Jeong-Min Kim Ju Won Seok Source Type: research

Cognitive state following mild stroke: A matter of hippocampal mean diffusivity
This article is protected by copyright. All rights reserved.
Source: Hippocampus - July 27, 2015 Category: Neurology Authors: Efrat Kliper, Einor Ben Assayag, Amos D. Korczyn, Eitan Auriel, Ludmila Shopin, Hen Hallevi, Shani Shenhar‐Tsarfaty, Anat Mike, Moran Artzi, Ilana Klovatch, Natan M. Bornstein, Dafna Ben Bashat Tags: Research Article Source Type: research

Comorbid Aβ toxicity and stroke: hippocampal atrophy, pathology, and cognitive deficit
Abstract: Numerous clinical and epidemiological reports indicate that patients with history of vascular illness such as stroke are more likely to develop dementia as the clinical manifestation of Alzheimer's disease. However, there are little data regarding the pathologic mechanisms that link vascular risk factors to the factors associated with dementia onset. We provide evidence that suggests intriguing detrimental interactions between stroke and β-amyloid (Aβ) toxicity in the hippocampus. Stroke was induced by unilateral striatal injection of endothelin-1, the potent vasoconstrictor. Aβ toxicity was modeled by bilater...
Source: Neurobiology of Aging - January 10, 2014 Category: Neuroscience Authors: Zareen Amtul, Simona Nikolova, Lulu Gao, Robin J. Keeley, John F. Bechberger, Alicia L. Fisher, Robert Bartha, David G. Munoz, Robert J. McDonald, Christian C. Naus, J. Martin Wojtowicz, Vladimir Hachinski, David F. Cechetto Tags: Regular Articles Source Type: research

Co-morbid beta-amyloid toxicity and stroke produce impairments in an ambiguous context task in rats without any impairment in spatial working memory.
This study examined the combined effects of beta-amyloid administration and unilateral stroke in an animal model of AD. Adult rats were given a sham surgery, bilateral intraventricular infusion of 10μL of 50nmol Aβ25-35, a unilateral injection of endothelin-1 into the right striatum, or Aβ and endothelin-1 administration in combination. Following a recovery period, rats were tested in the 1-trial place learning variant of the Morris water task followed by an ambiguous discriminative fear-conditioning to context task. After behavioural assessment, rats were euthanized, and representative sections of the medial septum wer...
Source: Neurobiology of Learning and Memory - January 7, 2015 Category: Neurology Authors: Keeley RJ, Hong NS, Fisher A, McDonald RJ Tags: Neurobiol Learn Mem Source Type: research

The improvement of spatial memory deficits in APP/V717I transgenic mice by chronic anti-stroke herb treatment
In China, herbal medicine has an extensive history for the treatment of cerebrovascular diseases. Clinical studies have shown that stroke patients are more likely to experience significant memory decline in comparison to their healthy counterparts. Cognition is improved in stroke patients treated with herbal medicine active components, Geniposide (GP) and Geniposide Rg1 (GRg1) (together, called TLJN). However, the effect of TLJN in Alzheimer disease remains unknown. Therefore, we investigated the behavioral effect of TLJN in male and female APP/V717I transgenic (Tg) mice. We conducted two different treatment strategies: (1...
Source: Experimental Biology and Medicine - July 28, 2014 Category: Research Authors: Yang, K., Tan, Y., Wang, F., Zhang, Q., Sun, P., Zhang, Y., Yao, N., Zhao, Y., Wang, X., Fan, A., Hua, Q. Tags: Neuroscience Source Type: research

PCSK9 Variants, LDL-Cholesterol, and Neurocognitive Impairment: The REasons for Geographic and Racial Differences in Stroke (REGARDS) Study.
Conclusions -These results suggest life-long exposure to low PCSK9 levels and cumulative exposure to lower LDL-C are not associated with neurocognitive effects in African Americans. PMID: 29146683 [PubMed - as supplied by publisher]
Source: Circulation - November 16, 2017 Category: Cardiology Authors: Mefford MT, Rosenson RS, Cushman M, Farkouh ME, McClure LA, Wadley VG, Irvin MR, Bittner VA, Safford MM, Somaratne R, Monda KL, Muntner P, Levitan EB Tags: Circulation Source Type: research

Direct AT2R Stimulation Slows Post-stroke Cognitive Decline in the 5XFAD Alzheimer ’s Disease Mice
AbstractAlzheimer ’s disease (AD), currently the single leading cause of death still on the rise, almost always coexists alongside vascular cognitive impairment (VCI). In fact, the ischemic disease affects up to 90% of AD patients, with strokes and major infarctions representing over a third of vascular lesions. St udies also confirmed that amyloid plaques, typical of AD, are much more likely to cause dementia if strokes or cerebrovascular damage also exist, leading to the term “mixed pathology” cognitive impairment. Although its incidence is expected to grow, there are no satisfactory treatments. There is hence an u...
Source: Molecular Neurobiology - June 5, 2022 Category: Neurology Source Type: research

Potential Applications of Remote Limb Ischemic Conditioning for Chronic Cerebral Circulation Insufficiency
Conclusion Due to its long-term and often invisible course, CCCI has received less attention than acute cerebral ischemic stroke. However, without appropriate intervention, CCCI may lead to a variety of adverse events. Because the pathophysiological changes associated with CCCI are complex, pharmacological research in this area has been disappointing. Recent research suggests that RLIC, which is less invasive and more well-tolerated than drug treatment, can activate endogenous protective mechanisms during CCCI. In the present report, we reviewed studies related to CCCI (Table 1), as well as those related to stroke and sta...
Source: Frontiers in Neurology - May 2, 2019 Category: Neurology Source Type: research

Effects of Neurotrophic Factors in Glial Cells in the Central Nervous System: Expression and Properties in Neurodegeneration and Injury
Conclusion and Future Aspects This review summarizes available NTF expression data, compiles existing evidence on the effects of glial NTF signaling in healthy conditions and in disease models (Figure 1), and highlights the importance of this topic for future studies. The relationship between NTFs and glia is crucial for both the developing and adult brain. While some of these factors, such as NT-3 and CNTF, have highly potent effects on gliogenesis, others like BDNF and GDNF, are important for glia-mediated synapse formation. Neurotrophic factors play significant roles during neurodegenerative disorders. In many cases, ...
Source: Frontiers in Physiology - April 25, 2019 Category: Physiology Source Type: research

Oversleeping: The Effects and Health Risks of Sleeping Too Much
This article originally appeared on the Amerisleep blog. Rosie Osmun is the Creative Content Manager at Amerisleep, a progressive memory foam mattress brand focused on eco-friendly sleep solutions. Rosie writes more posts on the Amerisleep blog about the science of sleep, eco-friendly living, leading a healthy lifestyle and more. -- This feed and its contents are the property of The Huffington Post, and use is subject to our terms. It may be used for personal consumption, but may not be distributed on a website.
Source: Healthy Living - The Huffington Post - January 29, 2016 Category: Consumer Health News Source Type: news

Phagocytosis in the Brain: Homeostasis and Disease
Conclusions and Perspectives In this review we have summarized the critical role phagocytosis plays in both CNS homeostasis and disease. While much progress has been made in recent years, many unanswered questions remain. How phagocytosis in the CNS is influenced by numerous factors, such as microenvironment or phagocytic target, have yet to be fully resolved. Additionally, the utilization of novel technologies, including in vivo imaging techniques (217), iPSC-derived microglia (213) and high-throughput screens (66), will likely contribute to further identification of phagocytic pathways and consequences of phagocytosis w...
Source: Frontiers in Immunology - April 15, 2019 Category: Allergy & Immunology Source Type: research

Modifiable Lifestyle Factors and Cognitive Function in Older People: A Cross-Sectional Observational Study
Conclusions: Lifestyle factors, such as physical activity, sleep, and social activity appear to be associated with cognitive function among older people. Physical activity and appropriate durations of sleep and conversation are important for cognitive function. Introduction Dementia is a major public health issue worldwide, with a serious burden for patients, caregivers, and society, as well as substantial economic impacts (1). Although the prevalence of late-life cognitive impairment and dementia are expected to increase in future, effective disease-modifying treatments are currently unavailable. Therefore, unders...
Source: Frontiers in Neurology - April 23, 2019 Category: Neurology Source Type: research

Glutamate Transport and Preterm Brain Injury
Silvia Pregnolato1*, Elavazhagan Chakkarapani1, Anthony R. Isles2 and Karen Luyt1 1Department of Neonatal Neurology, Translational Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom 2Behavioural Genetics Group, MRC Centre for Neuropsychiatric Genetics and Genomics, School of Medicine, Cardiff University, Cardiff, United Kingdom Preterm birth complications are the leading cause of child death worldwide and a top global health priority. Among the survivors, the risk of life-long disabilities is high, including cerebral palsy and impairment of movement, cognition, and beh...
Source: Frontiers in Physiology - April 23, 2019 Category: Physiology Source Type: research

Brain rewires itself after damage or injury, life scientists discover
When the brain's primary "learning center" is damaged, complex new neural circuits arise to compensate for the lost function, say life scientists from UCLA and Australia who have pinpointed the regions of the brain involved in creating those alternate pathways — often far from the damaged site.   The research, conducted by UCLA's Michael Fanselow and Moriel Zelikowsky in collaboration with Bryce Vissel, a group leader of the neuroscience research program at Sydney's Garvan Institute of Medical Research, appears this week in the early online edition of the journal Proceedings of the National Academy of Sciences. ...
Source: UCLA Newsroom: Health Sciences - May 15, 2013 Category: Universities & Medical Training Source Type: news

Nobiletin protects against cerebral ischemia via activating the p-Akt, p-CREB, BDNF and Bcl-2 pathway and ameliorating BBB permeability in rat.
Abstract There is cumulative evidence that the serine-threonine kinase Akt and its downstream nuclear transcription factor CREB are involved in neuronal survival and protection. The Akt activates and phosphorylates CREB at Ser133, resulting in the up-regulation of pro-survival CREB target genes such as BDNF and Bcl-2. Thus, Akt/CREB signaling pathway may be one propitious target for treatment of ischemic cerebral injury. Nobiletin (NOB) exhibits a wide spectrum of beneficial biological properties including anti-inflammatory, antioxidant, anti-carcinogenic actions and contributes to reverse learning impairment in A...
Source: Brain Research Bulletin - May 2, 2013 Category: Neurology Authors: Zhang L, Zhao H, Zhang X, Chen L, Zhao X, Bai X, Zhang J Tags: Brain Res Bull Source Type: research