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https://www.readbyqxmd.com/read/28548940/microbiota-gut-brain-axis-and-the-central-nervous-system
#1
REVIEW
Xiqun Zhu, Yong Han, Jing Du, Renzhong Liu, Ketao Jin, Wei Yi
The gut and brain form the gut-brain axis through bidirectional nervous, endocrine, and immune communications. Changes in one of the organs will affect the other organs. Disorders in the composition and quantity of gut microorganisms can affect both the enteric nervous system and the central nervous system (CNS), thereby indicating the existence of a microbiota-gut-brain axis. Due to the intricate interactions between the gut and the brain, gut symbiotic microorganisms are closely associated with various CNS diseases, such as Parkinson's disease, Alzheimer's disease, schizophrenia, and multiple sclerosis...
May 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28534735/the-use-of-the-gaps-in-noise-test-as-an-index-of-the-enhanced-left-temporal-cortical-thinning-associated-with-the-transition-between-mild-cognitive-impairment-and-alzheimer-s-disease
#2
Vasiliki Vivian Iliadou, Doris-Eva Bamiou, Christos Sidiras, Nikolaos P Moschopoulos, Magda Tsolaki, Ioannis Nimatoudis, Gail D Chermak
BACKGROUND: The known link between auditory perception and cognition is often overlooked when testing for cognition. PURPOSE: To evaluate auditory perception in a group of older adults diagnosed with mild cognitive impairment (MCI). RESEARCH DESIGN: A cross-sectional study of auditory perception. STUDY SAMPLE: Adults with MCI and adults with no documented cognitive issues and matched hearing sensitivity and age. DATA COLLECTION: Auditory perception was evaluated in both groups, assessing for hearing sensitivity, speech in babble (SinB), and temporal resolution...
May 2017: Journal of the American Academy of Audiology
https://www.readbyqxmd.com/read/28533046/-are-language-disorders-in-alzheimer-s-disease-simply-aphasia
#3
REVIEW
Cyril Hazif-Thomas, Philippe Thomas
Alzheimer's disease is accompanied by gradual aphasia, becoming more severe when the cognitive disorders are more marked. However, the quality of care provided to the patient can modulate the evolution of these language difficulties. Aphasia is linked to a human communication deficiency and can be limited by taking into account the phatic function of language to keep the channels of communication open.
May 2017: Soins. Gérontologie
https://www.readbyqxmd.com/read/28532225/pneumonia-in-nursing-home-patients-with-advanced-dementia-decisions-intravenous-rehydration-therapy-and-discomfort
#4
Jenny T van der Steen, Paola Di Giulio, Fabrizio Giunco, Massimo Monti, Simona Gentile, Daniele Villani, Silvia Finetti, Francesca Pettenati, Lorena Charrier, Franco Toscani
BACKGROUND: Comfort may be an appropriate goal in advanced dementia. Longitudinal studies on physician decision-making and discomfort assessed by direct observation are rare, and intravenous rehydration therapy is controversial. METHODS: To assess treatment decisions and discomfort in patients with advanced dementia and pneumonia and to compare by intravenous rehydration therapy, we used data from the observational multicenter Italian End of Life Observatory-Prospective Study On DEmentia patients Care...
January 1, 2017: American Journal of Hospice & Palliative Care
https://www.readbyqxmd.com/read/28527957/streptozotocin-alters-glucose-transport-connexin-expression-and-endoplasmic-reticulum-functions-in-neurons-and-astrocytes
#5
Joyshree Biswas, Sonam Gupta, Dinesh Kumar Verma, Sarika Singh
The study was undertaken to explore the cell specific streptozotocin (STZ) induced mechanistic alterations. STZ induced rodent model is a well established experimental model of Alzheimer's disease (AD) and in our previous studies we have established it as an in vitro screening model of AD by employing N2A neuronal cells. Therefore, STZ was selected in the present study to understand the STZ induced cell specific alterations by utilizing neuronal N2A and astrocytes C6 cells. Both neuronal and astrocyte cells were treated with STZ at 10, 50, 100 and 1000μM concentration for 48 h...
May 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28510506/signaling-at-the-crossroads-matrix-derived-proteoglycan-and-reactive-oxygen-species-signaling
#6
Madalina-Viviana Nastase, Andrea Janicova, Malgorzata Wygrecka, Liliana Schaefer
SIGNIFICANCE: Proteoglycans (PGs), besides their structural contribution, have emerged as dynamic components that mediate a multitude of cellular events. The various roles of PGs are attributed to their structure, spatial localization, and ability to act as ligands and receptors. Reactive oxygen species (ROS) are small mediators, which are generated in physiological and pathological conditions. Besides their reactivity and ability to induce oxidative stress, a growing body of data suggests that ROS signaling is more relevant than direct radical damage in development of human pathologies...
May 16, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28503675/costs-of-a-staff-communication-intervention-to-reduce-dementia-behaviors-in-nursing-home-care
#7
Kristine N Williams, Padmaja Ayyagari, Yelena Perkhounkova, Marjorie J Bott, Ruth Herman, Ann Bossen
CONTEXT: Persons with Alzheimer's disease and other dementias experience behavioral symptoms that frequently result in nursing home (NH) placement. Managing behavioral symptoms in the NH increases staff time required to complete care, and adds to staff stress and turnover, with estimated cost increases of 30%. The Changing Talk to Reduce Resistivenes to Dementia Care (CHAT) study found that an intervention that improved staff communication by reducing elderspeak led to reduced behavioral symptoms of dementia or resistiveness to care (RTC)...
2017: Journal of Nursing Home Research Sciences
https://www.readbyqxmd.com/read/28482505/sirna-nanoparticle-conjugate-in-gene-silencing-a-future-cure-to-deadly-diseases
#8
REVIEW
Rituparna Acharya, Suman Saha, Sayantan Ray, Sugata Hazra, Manoj K Mitra, Jui Chakraborty
Alzheimers, cancer, acquired immune deficiency syndrome (AIDS) are considered to be some of the most deadly diseases of the 21st century on account of their severity and rapid increase in the number of affected population and with scarce cases of recovery, they still remain a troubling paradox. Specifically, with millions of cancer patients worldwide and lack of proper cure for the same, understanding the deadly disease at the molecular level and planning a therapeutic strategy in the same line is the need of the hour...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28466655/pain-interference-and-depressive-symptoms-in-communicative-people-with-alzheimer-s-disease-a-pilot-study
#9
Jinjiao Wang, Mary S Dietrich, Sandra F Simmons, Ronald L Cowan, Todd B Monroe
OBJECTIVES: To examine pain interference in verbally communicative older adults with mild to moderate Alzheimer's disease (AD) and to examine the association of pain interference with cognitive function and depressive symptoms. METHOD: For this pilot study, we used a cross-sectional design to examine pain interference (Brief Pain Inventory-Short Form), cognitive function (Mini-Mental State Exam), and depressive symptoms (15-item Geriatric Depression Scale) in 52 older (≥65) communicative adults with AD who reported being free from chronic pain requiring daily analgesics...
May 3, 2017: Aging & Mental Health
https://www.readbyqxmd.com/read/28461971/cholesterol-in-the-pathogenesis-of-alzheimer-s-parkinson-s-diseases-and-autism-link-to-synaptic-dysfunction
#10
A M Petrov, M R Kasimov, A L Zefirov
In our previous review, we described brain cholesterol metabolism in control conditions and in the case of some rare neurological pathologies linked to defects in the genes which are directly involved in the synthesis and/or traffic of cholesterol. Here, we have analyzed disruptions in cholesterol homeostasis in widespread neurodegenerative diseases (Alzheimer's and Parkinson's diseases) and autism spectrum disorders. We particularly focused on the synaptic dysfunctions that could arise from changes in both membrane cholesterol availability and oxysterol production...
January 2017: Acta Naturae
https://www.readbyqxmd.com/read/28447569/a-new-treatment-strategy-for-parkinson-s-disease-through-the-gut-brain-axis-the-glucagon-like-peptide-1-receptor-pathway
#11
Dong Seok Kim, Ho-Il Choi, Yun Wang, Yu Luo, Barry J Hoffer, Nigel H Greig
Molecular communications in the gut-brain axis, between the central nervous system and the gastrointestinal tract, arecritical for maintaining healthy brain function particularly in aging. Epidemiological analyses indicate type 2 diabetes mellitus (T2DM) is a risk factor for neurodegenerative disorders, including Alzheimer's disease (AD) and Parkinson's diseases (PD) for which aging shows a major correlative association. Common pathophysiological features exist between T2DM, AD and PD, including oxidative stress, inflammation, insulin resistance, abnormal protein processing and cognitive decline, and suggest that effective drugs for T2DM that positively impact the gut-brain axis could provide an effective treatment option for neurodegenerative diseases...
April 26, 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28443016/genetics-of-aggression-in-alzheimer-s-disease-ad
#12
Walter J Lukiw, Evgeny I Rogaev
Alzheimer's disease (AD) is a terminal, age-related neurological syndrome exhibiting progressive cognitive and memory decline, however AD patients in addition exhibit ancillary neuropsychiatric symptoms (NPSs) and these include aggression. In this communication we provide recent evidence for the mis-regulation of a small family of genes expressed in the human hippocampus that appear to be significantly involved in expression patterns common to both AD and aggression. DNA array- and mRNA transcriptome-based gene expression analysis and candidate gene association and/or genome-wide association studies (CGAS, GWAS) of aggressive attributes in humans have revealed a surprisingly small subset of six brain genes that are also strongly associated with altered gene expression patterns in AD...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28429629/developing-indicators-of-appropriate-and-inappropriate-end-of-life-care-in-people-with-alzheimer-s-disease-cancer-or-chronic-obstructive-pulmonary-disease-for-population-level-administrative-databases-a-rand-ucla-appropriateness-study
#13
Robrecht De Schreye, Dirk Houttekier, Luc Deliens, Joachim Cohen
BACKGROUND: A substantial amount of aggressive life-prolonging treatments in the final stages of life has been reported for people with progressive life-shortening conditions. Monitoring appropriate and inappropriate end-of-life care is an important public health challenge and requires validated quality indicators. AIM: To develop indicators of appropriate and inappropriate end-of-life care for people with cancer, chronic obstructive pulmonary disease or Alzheimer's disease, measurable with population-level administrative data...
April 1, 2017: Palliative Medicine
https://www.readbyqxmd.com/read/28393582/insights-into-the-human-brain-proteome-disclosing-the-biological-meaning-of-protein-networks-in-cerebrospinal-fluid
#14
Paulo Bastos, Rita Ferreira, Bruno Manadas, Paula I Moreira, Rui Vitorino
Cerebrospinal fluid (CSF) is an excellent source of biological information regarding the nervous system, once it is in close contact and accurately reflects alterations in this system. Several studies have analyzed differential protein profiles of CSF samples between healthy and diseased human subjects. However, the pathophysiological mechanisms and how CSF proteins relate to diseases are still poorly known. By applying bioinformatics tools, we attempted to provide new insights on the biological and functional meaning of proteomics data envisioning the identification of putative disease biomarkers...
May 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/28386363/bioinformatics-and-co-expression-network-analysis-of-differentially-expressed-lncrnas-and-mrnas-in-hippocampus-of-app-ps1-transgenic-mice-with-alzheimer-disease
#15
Min Fang, Pei Zhang, Yanxin Zhao, Xueyuan Liu
APP/PS1 transgenic mice with Alzheimer disease (AD) are widely used as a reliable animal model in studies about behaviors, physiology, biochemistry and histomorphology of AD, but few studies have been conducted to investigate the role of lncRNAs in this model. In this study, lncRNA microarray was employed to detect the gene expression profile and lncRNA expression profile in the mouse brain. Then, bioinformatics was used to predict the differentially expressed genes related to AD (n=20). Among different lncRNAs (n=249), 99 were downregulated and 150 upregulated...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28373956/a-neural-network-underlying-intentional-emotional-facial-expression-in-neurodegenerative-disease
#16
Kelly A Gola, Tal Shany-Ur, Peter Pressman, Isa Sulman, Eduardo Galeana, Hillary Paulsen, Lauren Nguyen, Teresa Wu, Babu Adhimoolam, Pardis Poorzand, Bruce L Miller, Katherine P Rankin
Intentional facial expression of emotion is critical to healthy social interactions. Patients with neurodegenerative disease, particularly those with right temporal or prefrontal atrophy, show dramatic socioemotional impairment. This was an exploratory study examining the neural and behavioral correlates of intentional facial expression of emotion in neurodegenerative disease patients and healthy controls. One hundred and thirty three participants (45 Alzheimer's disease, 16 behavioral variant frontotemporal dementia, 8 non-fluent primary progressive aphasia, 10 progressive supranuclear palsy, 11 right-temporal frontotemporal dementia, 9 semantic variant primary progressive aphasia patients and 34 healthy controls) were video recorded while imitating static images of emotional faces and producing emotional expressions based on verbal command; the accuracy of their expression was rated by blinded raters...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28372330/the-gut-microbiota-and-alzheimer-s-disease
#17
Chunmei Jiang, Guangning Li, Pengru Huang, Zhou Liu, Bin Zhao
The gut microbiota comprises a complex community of microorganism species that resides in our gastrointestinal ecosystem and whose alterations influence not only various gut disorders but also central nervous system disorders such as Alzheimer's disease (AD). AD, the most common form of dementia, is a neurodegenerative disorder associated with impaired cognition and cerebral accumulation of amyloid-β peptides (Aβ). Most notably, the microbiota-gut-brain axis is a bidirectional communication system that is not fully understood, but includes neural, immune, endocrine, and metabolic pathways...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28372325/cognitive-rehabilitation-in-alzheimer-s-disease-a-controlled-intervention-trial
#18
Katharina Brueggen, Elisabeth Kasper, Sina Ochmann, Henrike Pfaff, Steffi Webel, Wolfgang Schneider, Stefan Teipel
BACKGROUND: Cognitive Rehabilitation for Alzheimer's disease (AD) is an integrative multimodal intervention. It aims to maintain autonomy and quality of life by enhancing the patients' abilities to compensate for decreased cognitive functioning. OBJECTIVE: We evaluated the feasibility of a group-based Cognitive Rehabilitation approach in mild AD dementia and assessed its effect on activities of daily living (ADL). METHODS: We included 16 patients with AD dementia in a controlled partial-randomized design...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28353223/multiplexing-biomarker-methods-proteomics-and-considerations-for-alzheimer-s-disease
#19
Renã A S Robinson, Bushra Amin, Paul C Guest
Biomarker research for Alzheimer's disease (AD) has been growing rapidly over recent years especially as the number of persons affected by this disease is nearing approximately 46 million worldwide. Single biomarker assays are challenging to establish since AD is multifactorial and complex. In addition to the classic signs of diminished cognition and memory, AD patients can also exhibit symptoms which may be confused with some psychiatric disorders, such as depression. No molecular biomarkers have been established or translated into clinical tools although recent efforts have resulted in addition of molecular biomarker profiles to the National Institute of Neurological and Communicative Disorders and Stroke and Alzheimer's Disease and Related Disorders Association criteria for research purposes...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28304312/cognitive-rehabilitation-in-alzheimer-s-disease-a-controlled-intervention-trial
#20
Katharina Brueggen, Elisabeth Kasper, Sina Ochmann, Henrike Pfaff, Steffi Webel, Wolfgang Schneider, Stefan Teipel
BACKGROUND: Cognitive Rehabilitation for Alzheimer's disease (AD) is an integrative multimodal intervention. It aims to maintain autonomy and quality of life by enhancing the patients' abilities to compensate for decreased cognitive functioning. OBJECTIVE: We evaluated the feasibility of a group-based Cognitive Rehabilitation approach in mild AD dementia and assessed its effect on activities of daily living (ADL). METHODS: We included 16 patients with AD dementia in a controlled partial-randomized design...
March 18, 2017: Journal of Alzheimer's Disease: JAD
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