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Review of Alzheimer

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https://www.readbyqxmd.com/read/29240924/effect-of-omega-3-fatty-acids-on-cognition-an-updated-systematic-review-of-randomized-clinical-trials
#1
Oscar D Rangel-Huerta, Angel Gil
Context: The increasing number of studies on the effects of n-3 long-chain polyunsaturated fatty acids (LC-PUFAs) on health, particularly cognition, in the last 5 years reflects the growing interest in this area of research. Objective: The aim for this systematic review was to evaluate the scientific evidence published in the last 5 years (2012-2017) on the effects of n-3 LC-PUFA intake on cognition, cognitive development, and cognitive decline to determine whether n-3 LC-PUFAs support cognitive development and prevent cognitive decline...
December 12, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/29239495/comparisons-between-traditional-medicines-and-pharmacotherapies-for-alzheimer-disease-a-systematic-review-and-meta-analysis-of-cognitive-outcomes
#2
REVIEW
Brian H May, Mei Feng, Anna J Hyde, Helmut Hügel, Su-Yueh Chang, Lin Dong, Xinfeng Guo, Anthony L Zhang, Chuanjian Lu, Charlie C Xue
OBJECTIVES: To evaluate the clinical evidence for traditional medicines (TMs) used in East Asia on measures of cognition in Alzheimer disease, determine the effect sizes at different time points for the TMs and pharmacotherapies, and assess the tolerability of the TMs. METHODS: We searched 12 databases in English, Chinese, and Japanese for eligible randomised controlled trials that compared orally administered TMs with pharmacotherapy and reported cognitive outcomes...
December 14, 2017: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/29238394/physical-exercise-as-stabilizer-for-alzheimer-s-disease-cognitive-decline-current-status
#3
Sergio Machado, Alberto Souza de Sá Filho, Matheus Wilbert, Gabriela Barbieri, Victor Almeida, Alexandre Gurgel, Charles V Rosa, Victor Lins, Alexandre Paixão, Kamila Santana, Gabriel Ramos, Geraldo Maranhão Neto, Flá Paes, Nuno Rocha, Eric Murillo-Rodriguez
Introduction: Mental health decline is one of the main responsible factors for augments in health care costs, and diagnosis of Alzheimer's disease (AD). Some studies stated physical exercise is useful for reduction in cognitive decline and AD. Moreover, a recent review argued that evidence are scarce due to few studies published and lack of configuration information of exercise protocol, such as intensity and duration of exercise, number of sessions and other relevant data, to allow appropriate assessment...
2017: Clinical Practice and Epidemiology in Mental Health: CP & EMH
https://www.readbyqxmd.com/read/29237931/tau-mediated-neurodegeneration-and-potential-implications-in-diagnosis-and-treatment-of-alzheimer-s-disease
#4
REVIEW
Xi-Lin Wu, Juan Piña-Crespo, Yun-Wu Zhang, Xiao-Chun Chen, Hua-Xi Xu
OBJECTIVE: To review recent research advances on tau, a major player in Alzheimer's disease (AD) pathogenesis, a biomarker for AD onset, and potential target for AD therapy. DATA SOURCES: This review was based on a comprehensive search using online literature databases, including PubMed, Web of Science, and Google Scholar. STUDY SELECTION: Literature search was based on the following keywords: Alzheimer's disease, tau protein, biomarker, cerebrospinal fluid (CSF), therapeutics, plasma, imaging, propagation, spreading, seeding, prion, conformational templating, and posttranslational modification...
December 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/29235615/-music-therapy-as-a-non-pharmacological-treatment-in-alzheimer-s-disease-a-systematic-review
#5
N Garcia-Casares, R M Moreno-Leiva, J A Garcia-Arnes
INTRODUCTION: Alzheimer's disease (AD) is a neurodegenerative disease which involves, among other manifestations, a progressive deterioration of memory and language, as well as behavioral disorders. In addition to non-curative pharmacological therapies, for the last years, music therapy has been developed as an effective non-pharmacological therapy in order to relieve many of these manifestations. AIM: To analyze the recent scientific evidence about the effect of music therapy on cognitive and behavioral symptoms in patients with AD...
December 16, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/29234418/effects-of-acupuncture-on-alzheimer-s-disease-in-animal-based-research
#6
REVIEW
Sunjung Park, Jun-Hwan Lee, Eun Jin Yang
Alzheimer's disease (AD) is a chronic neurodegenerative disease characterized by the accumulation of amyloid beta (Aβ) plaques, neurofibrillary tangles, and severe functional deficits in the brain. The pathogenesis and treatment of AD remain topics of investigation and significant global socioeconomic issues. The effect of complementary medicine has been investigated in managing AD. Acupuncture, a form of therapy practiced for more than 3000 years, has shown positive effects on several neurological disorders including AD...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29233636/amylin-in-alzheimer-s-disease-pathological-peptide-or-potential-treatment
#7
REVIEW
Elizabeth G Mietlicki-Baase
Alzheimer's disease (AD) is a neurodegenerative disease for which we currently lack effective treatments or a cure. The pancreatic peptide hormone amylin has recently garnered interest as a potential pharmacological target for the treatment of AD. A number of studies have demonstrated that amylin and amylin analogs like the FDA-approved diabetes drug pramlintide can reduce amyloid burden in the brain and improve cognitive symptoms of AD. However, other data suggest that amylin may have pathological effects in AD due to its propensity to misfold and aggregate under certain conditions...
December 9, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29232252/nicotinamide-adenine-dinucleotide-and-its-related-precursors-for-the-treatment-of-alzheimer-s-disease
#8
Nady Braidy, Ross Grant, Perminder S Sachdev
PURPOSE OF REVIEW: The current review discusses the biology and metabolism of the essential pyridine nucleotide nicotinamide adenine dinucleotide (NAD+) in the central nervous system. We also review recent work suggesting important neuroprotective effects that may be associated with the promotion of NAD+ levels through NAD+ precursors against Alzheimer's disease. RECENT FINDINGS: Perturbations in the physiological homoeostatic state of the brain during the ageing process can lead to impaired cellular function, and ultimately leads to loss of brain integrity and accelerates cognitive and memory decline...
December 9, 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/29230295/modulating-protein-amyloid-aggregation-with-nanomaterials
#9
Bo Wang, Emily H Pilkington, Yunxiang Sun, Thomas P Davis, Pu Chun Ke, Feng Ding
Direct exposure or intake of nanopaticles (NPs) to the human body can invoke a series of biological responses, some of which are deleterious, and as such the role of NPs in vivo requires thorough examination. Over the past decade, it has been established that biomolecules such as proteins can bind NPs to form a 'corona', where the structures and dynamics of NP-associated proteins can assign new functionality, systemic distribution and toxicity. However, the behavior and fate of NPs in biological systems are still far from being fully understood...
September 1, 2017: Environmental Science. Nano
https://www.readbyqxmd.com/read/29230021/markers-of-microglia-in-post-mortem-brain-samples-from-patients-with-alzheimer-s-disease-a-systematic-review
#10
REVIEW
K E Hopperton, D Mohammad, M O Trépanier, V Giuliano, R P Bazinet
Neuroinflammation is proposed as one of the mechanisms by which Alzheimer's disease pathology, including amyloid-β plaques, leads to neuronal death and dysfunction. Increases in the expression of markers of microglia, the main neuroinmmune cell, are widely reported in brains from patients with Alzheimer's disease, but the literature has not yet been systematically reviewed to determine whether this is a consistent pathological feature. A systematic search was conducted in Medline, Embase and PsychINFO for articles published up to 23 February 2017...
December 12, 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/29229199/microbiota-and-aging-a-review-and-commentary
#11
REVIEW
Carmen García-Peña, Teresa Álvarez-Cisneros, Ricardo Quiroz-Baez, Robert P Friedland
Although there is a consensus that the dominant species that make up the adult microbiota remains unchanged in elderly people, it has been reported that there are significant alterations in the proportion and composition of the different taxa, leading to reduced microbiota diversity, as well as an increase of enteropathogens that may lead to chronic inflammation. The ageing of mucosal immune and motor systems also contributes to these changes. As the individual ages, there is a loss in the number of Peyer's patches, an altered local capacity of T and B cell functions as well as chronic macrophage activation...
December 8, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29228074/a-review-of-the-current-therapies-challenges-and-future-directions-of-transcranial-focused-ultrasound-technology-advances-in-diagnosis-and-treatment
#12
Vibhor Krishna, Francesco Sammartino, Ali Rezai
Importance: Magnetic resonance imaging-guided focused ultrasound ablation has been approved for the treatment of refractory essential tremor and is being studied for other neurological indications, including dyskinesias and tremor in Parkinson disease, dystonia, neuropathic pain, obsessive-compulsive disorder, epilepsy, and brain tumors. Objective: To review the scientific foundations of FUS technology, existing neurological applications, and future advances. Evidence Review: PubMed was searched for the past 10 years using the terms "transcranial ultrasound," "focused ultrasound," and "neurological applications...
December 11, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29227178/neuronal-pathophysiology-featuring-prpc-and-its-control-over-ca2-metabolism
#13
Alessandro Bertoli, M Catia Sorgato
Calcium (Ca2+) is an intracellular second messenger that ubiquitously masters remarkably diverse biological processes, including cell death. Growing evidence substantiates an involvement of the prion protein (PrPC) in regulating neuronal Ca2+ homeostasis, which could rationalize most of the wide range of functions ascribed to the protein. We have recently demonstrated that PrPC controls extracellular Ca2+ fluxes, and mitochondrial Ca2+ uptake, in neurons stimulated with glutamate (De Mario et al., J Cell Sci 2017; 130:2736-46), suggesting that PrPC protects neurons from threatening Ca2+ overloads and excitotoxicity...
December 11, 2017: Prion
https://www.readbyqxmd.com/read/29226873/modeling-prion-like-processing-of%C3%A2-tau%C3%A2-protein-in-alzheimer-s-disease-for%C3%A2-pharmaceutical-development
#14
Claude M Wischik, Björn O Schelter, Damon J Wischik, John M D Storey, Charles R Harrington
 Following our discovery of a fragment from the repeat domain of tau protein as a structural constituent of the PHF-core in Alzheimer's disease (AD), we developed an assay that captured several key features of the aggregation process. Tau-tau binding through the core tau fragment could be blocked by the same diaminophenothiazines found to dissolve proteolytically stable PHFs isolated from AD brain. We found that the PHF-core tau fragment is inherently capable of auto-catalytic self-propagation in vitro, or "prion-like processing", that has now been demonstrated for several neurodegenerative disorders...
December 8, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29226872/while-i-still-remember-30-years-of-alzheimer-s-disease-research
#15
Thomas B Shea
Turns out I have been a major contributor to the Journal of Alzheimer's Disease over its 20-year history. As such, I was invited to provide a review of my work over the years. What follows is a retrospective of how the Alzheimer-related research of a Ph.D. (i.e., not an M.D.) transitioned from basic to clinical, and moved from bench to bedside and back again.I have included some of the more humorous and poignant twists along the way that some older players may find familiar and I hope might inspire some younger players to hang in there...
December 2, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29226069/do-older-adults-need-sleep-a-review-of-neuroimaging-sleep-and-aging-studies
#16
Michael K Scullin
Purpose of Review: Sleep habits, sleep physiology, and sleep disorders change with increasing age. However, there is a longstanding debate regarding whether older adults need sleep to maintain health and daily functioning (reduced-sleep-need view). An alternative possibility is that all older adults need sleep, but that many older adults have lost the ability to obtain restorative sleep (reduced-sleep-ability view). Prior research using behavioral and polysomnography outcomes has not definitively disentangled the reduced-sleep-need and reduced-sleep-ability views...
September 2017: Current Sleep Medicine Reports
https://www.readbyqxmd.com/read/29225013/succinate-dehydrogenase-prospect-for-neurodegenerative-diseases
#17
REVIEW
Mohammad Jodeiri Farshbaf, Abbas Kiani-Esfahani
Onset of Alzheimer's, Parkinson's and Huntington's diseases as neurodegenerative disorders is increased by age. Alleviation of clinical symptoms and protection of neurons against degeneration are the main aspects of researches to establish new therapeutic strategies. Many studies have shown that mitochondria play crucial roles in high energy demand tissues like brain. Impairments in mitochondrial activity and physiology can makes neurons vulnerable to stress and degeneration. Succinate dehydrogenase (SDH) connects tricarboxylic cycle to the electron transport chain...
December 7, 2017: Mitochondrion
https://www.readbyqxmd.com/read/29223352/atp-binding-cassette-transporter-2-abca2-as-a-therapeutic-target
#18
REVIEW
Warren Davis, Kenneth D Tew
The ATP binding cassette transporter ABCA2 is primarily an endolysosomal membrane protein that demonstrates pleiotropic functionalities, coalescing around the maintenance of homeostasis of sterols, sphingolipids and cholesterol. It is most highly expressed in brain tissue and ABCA2 knockout mice express neurological defects consistent with aberrant myelination. Increased expression of the transporter has been linked with resistance to cancer drugs, particularly those possessing a steroid backbone and gene expression (in concert with other genes involved in cholesterol metabolism) was found to be regulated by sterols...
December 6, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29223144/role-of-carbon-monoxide-in-neurovascular-repair-processing
#19
REVIEW
Yoon Kyung Choi
Carbon monoxide (CO) is a gaseous molecule produced from heme by heme oxygenase (HO). Endogenous CO production occurring at low concentrations is thought to have several useful biological roles. In mammals, especially humans, a proper neurovascular unit comprising endothelial cells, pericytes, astrocytes, microglia, and neurons is essential for the homeostasis and survival of the central nervous system (CNS). In addition, the regeneration of neurovascular systems from neural stem cells and endothelial precursor cells after CNS diseases is responsible for functional repair...
December 8, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/29222909/an-emerging-role-of-astrocytes-in-vascular-contributions-to-cognitive-impairment-and-dementia-vcid
#20
REVIEW
Brittani R Price, Christopher M Norris, Pradoldej Sompol, Donna M Wilcock
Vascular contributions to cognitive impairment and dementia (VCID) is understood to be the second most common cause of dementia after Alzheimer's disease (AD), and is also a frequent co-morbidity with AD. While VCID is widely acknowledged as a key contributor to dementia, the mechanistic underpinnings of VCID remain poorly understood. In this review, we address the potential role of astrocytes in the pathophysiology of VCID. The vast majority of the blood vessels in the brain are surrounded by astrocytic end-feet...
December 9, 2017: Journal of Neurochemistry
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