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https://www.readbyqxmd.com/read/29149631/prostaglandin-j2-promotes-o-glcnacylation-raising-app-processing-by-%C3%AE-and-%C3%AE-secretases-relevance-to-alzheimer-s-disease
#1
Teneka Jean-Louis, Patricia Rockwell, Maria E Figueiredo-Pereira
Regulation of the amyloid precursor protein (APP) processing by α- and β-secretases is of special interest to Alzheimer's disease (AD), as these proteases prevent or mediate amyloid beta formation, respectively. Neuroinflammation is also implicated in AD. Our data demonstrate that the endogenous mediator of inflammation prostaglandin J2 (PGJ2) promotes full-length APP (FL-APP) processing by α- and β-secretases. The decrease in FL-APP was independent of proteasomal, lysosomal, calpain, caspase, and γ-secretase activities...
November 14, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29148112/big-data-and-data-science-in-healthcare-what-nurses-and-midwives-need-to-know
#2
EDITORIAL
Siobhan O'Connor
The evolution of technology in contemporary society has been accelerating in recent decades, with smaller, more interconnected hardware devices and software applications becoming the norm. As desktop computing paved the way for mobile platforms, which are now transitioning to wearable devices and other sensors, it is inevitable these electronic tools will advance into the realm of nanotechnology and biotechnology in the years to come. As the proliferation of information and communication technology continues it has led to a tsunami of digital data (Bates et al, 2014), which is being collected on many aspects of life...
November 17, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29147492/alterations-in-adult-hippocampal-neurogenesis-aberrant-protein-s-nitrosylation-and-associated-spatial-memory-loss-in-streptozotocin-induced-diabetes-mellitus-type-2-mice
#3
Aneeqa Noor, Saadia Zahid
Objectives: Epidemiological and biochemical studies conducted over the past two decades have established a strong link between type 2 diabetes mellitus (T2DM) and Alzheimer's disease (AD). However, the exact mechanisms through which aberrations in insulin signaling associated with T2DM contribute to cognitive decline are not yet known. Materials and Methods: In an effort to explore possible molecular links between T2DM and AD, the present study investigated the status of neurodegeneration, adult hippocampal neurogenesis, and nitrosative stress induced protein S-nitrosylation in streptozotocin (STZ) induced mice models of T2DM...
October 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29146293/andrographolide-a-promising-therapeutic-agent-negatively-regulates-glial-cell-derived-neurodegeneration-of-prefrontal-cortex-hippocampus-and-working-memory-impairment
#4
Sudeshna Das, K P Mishra, Lilly Ganju, S B Singh
Over activation of glial cell derived innate immune factors induces neuro-inflammation that results in neurodegenerative disease, like working memory impairment. In this study, we have investigated the role of andrographolide, a major constituent of Andrographis paniculata plant, in reduction of reactive glial cell derived working memory impairment. Real time PCR, Western bloting, flow cytometric and immunofluorescence studies demonstrated that andrographolide inhibited lipopolysaccharide (LPS)-induced overexpression of HMGB1, TLR4, NFκB, COX-2, iNOS, and release of inflammatory mediators in primary mix glial culture, adult mice prefrontal cortex and hippocampus region...
November 8, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29144022/collagen-a-review-on-its-sources-and-potential-cosmetic-applications
#5
REVIEW
María Isabela Avila Rodríguez, Laura G Rodríguez Barroso, Mirna Lorena Sánchez
Collagen is a fibrillar protein that conforms the conjunctive and connective tissues in the human body, essentially skin, joints, and bones. This molecule is one of the most abundant in many of the living organisms due to its connective role in biological structures. Due to its abundance, strength and its directly proportional relation with skin aging, collagen has gained great interest in the cosmetic industry. It has been established that the collagen fibers are damaged with the pass of time, losing thickness and strength which has been strongly related with skin aging phenomena [Colágeno para todo...
November 16, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29143665/cardiopulmonary-and-inflammatory-biomarkers-in-heartworm-disease
#6
REVIEW
Elena Carretón, Rodrigo Morchón, José Alberto Montoya-Alonso
In heartworm disease, several biomarkers of cardiopulmonary injury and inflammatory activity have been studied during the recent years. D-dimer is a fibrin degradation product present after a clot is degraded, which has been reported to provide support for the diagnosis of pulmonary thromboembolism in heartworm disease. Furthermore, concentrations increment with increased disease severity and during the adulticide treatment. This increase in concentration has proved to be valuable. Cardiac biomarkers troponin I, myoglobin and NT-proBNP demonstrated presence of myocardial injury and heart failure, especially in chronic infections, which in some cases, slightly improve after the adulticide treatment...
November 9, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29143623/the-impact-of-eliminating-within-country-inequality-in-health-coverage-on-maternal-and-child-mortality-a-lives-saved-tool-analysis
#7
Adrienne Clermont
BACKGROUND: Inequality in healthcare across population groups in low-income countries is a growing topic of interest in global health. The Lives Saved Tool (LiST), which uses health intervention coverage to model maternal, neonatal, and child health outcomes such as mortality rates, can be used to analyze the impact of within-country inequality. METHODS: Data from nationally representative household surveys (98 surveys conducted between 1998 and 2014), disaggregated by wealth quintile, were used to create a LiST analysis that models the impact of scaling up health intervention coverage for the entire country from the national average to the rate of the top wealth quintile (richest 20% of the population)...
November 7, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29141208/crispr-transcriptional-activation-analysis-unmasks-an-occult-%C3%AE-secretase-processivity-defect-in-familial-alzheimer-s-disease-skin-fibroblasts
#8
Keiichi Inoue, Luis M A Oliveira, Asa Abeliovich
Mutations in presenilin (PSEN) 1 and 2, which encode components of the γ-secretase (GS) complex, cause familial Alzheimer's disease (FAD). It is hypothesized that altered GS-mediated processing of the amyloid precursor protein (APP) to the Aβ42 fragment, which is accumulated in diseased brain, may be pathogenic. Here, we describe an in vitro model system that enables the facile analysis of neuronal disease mechanisms in non-neuronal patient cells using CRISPR gene activation of endogenous disease-relevant genes...
November 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/29139163/assessment-of-hard-target-modeling-in-casp12-reveals-an-emerging-role-of-alignment-based-contact-prediction-methods
#9
Luciano A Abriata, Giorgio E Tamò, Bohdan Monastyrskyy, Andriy Kryshtafovych, Matteo Dal Peraro
We present our assessment of CASP12 modeling efforts for targets with no obvious templates of high sequence/structure similarity in the PDB, i.e. for evaluation units of the free modeling (FM) and free modeling/template-based modeling (FM/TBM) categories. Models were clustered and ranked using the Global Distance Test-Total Score and five additional metrics developed in previous CASP rounds, producing short lists of models that were subject to visual inspection in comparison to the target structures. The whole procedure was implemented as a web app that facilitates model selection and visual inspection, and could become useful to facilitate and standardize future assessments...
November 15, 2017: Proteins
https://www.readbyqxmd.com/read/29136781/andrographolide-sulfonate-improves-alzheimer-associated-phenotypes-and-mitochondrial-dysfunction-in-app-ps1-transgenic-mice
#10
Ji Geng, Wen Liu, Yuyun Xiong, Hongqun Ding, Chunhong Jiang, Xiaoling Yang, Xiang Li, Ahmed Elgehama, Yang Sun, Qiang Xu, Wenjie Guo, Jing Gao
Alzheimer's disease is a neurodegenerative disorder with Amyloid-β plaques onset, synaptic damage, and cognitive decline. Aβ deposits cause pathological events including oxidative stress, mitochondrial dysfunction, and neuron death. In this study, APPswe/PSENΔ9 double transgenic mice model was used to imitate Alzheimer's disease and the effect and possible mechanism of Andrographolide sulfonate were examined. Andrographolide sulfonate was given to the mice for 7 months before the onset of Aβ plaque. Spatial memory test showed that Andrographolide sulfonate treatment prevented cognitive decline...
November 8, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29134514/expression-of-bc1-impairs-spatial-learning-and-memory-in-alzheimer-s-disease-via-app-translation
#11
Tongmei Zhang, Pei Pang, Zemin Fang, Yu Guo, Hao Li, Xinyan Li, Tian Tian, Xin Yang, Wenting Chen, Shu Shu, Na Tang, Jianhua Wu, Houze Zhu, Lei Pei, Dan Liu, Qing Tian, Jian Wang, Lin Wang, Ling-Qiang Zhu, Youming Lu
Aggregation of amyloid-β (Aβ) peptides, which are the cleavage products of amyloid precursor protein (APP), is a major pathological hallmark in the brain of Alzheimer's disease (AD). Now, we know little about the roles of APP translation in the disease progression of AD. Here, we show that BC1, a long noncoding RNA (lncRNA), is expressed in the brain of AD mice. BC1 induces APP mRNA translation via association with a fragile X syndrome protein (FMRP). Inhibition of BC1 or BC1-FMRP association in AD mice blocks aggregation of Aβ in the brain and protects against the spatial learning and memory deficits...
November 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/29132449/using-mobile-apps-to-communicate-vaccination-records-a-city-wide-evaluation-with-a-national-immunization-app-maternal-child-registry-and-public-health-authorities
#12
Katherine M Atkinson, Ziad El-Khatib, Geoffery Barnum, Cameron Bell, Marie-Claude Turcotte, Malia S Q Murphy, Mari Teitelbaum, Pranesh Chakraborty, Lucie Laflamme, Kumanan Wilson
Medicine is experiencing a paradigm shift, where patients are increasingly involved in the management of their health data. We created a mobile app which permitted parental reporting of immunization status to public health authorities. We describe app use as a proxy for feasibility and acceptability as well as data utility for public health surveillance. The evaluation period ran from April 27, 2015, to April 18, 2017, during which time 2,653 unique children's records were transmitted, containing 36,105 vaccinations...
2017: Healthcare Quarterly
https://www.readbyqxmd.com/read/29132216/curcumin-decreases-hyperphosphorylation-of-tau-by-down-regulating-caveolin-1-gsk-3%C3%AE-in-n2a-app695swe-cells-and-app-ps1-double-transgenic-alzheimer-s-disease-mice
#13
Jieyun Sun, Xiong Zhang, Chen Wang, Zhipeng Teng, Yu Li
Caveolin-1, the marker protein of membranal caveolae, is not only involved in cholesterol regulation, but also participates in the cleavage of amyloid [Formula: see text]-protein precursor (APP) and the generation of [Formula: see text]-amyloid peptide. It has been reported to be tightly related with Tau. In our previous studies, curcumin has been confirmed to play a neuroprotective role in Alzheimer's disease (AD), but its effects on Caveolin-1, Tau and their correlation, and the mechanism is still unknown...
November 13, 2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/29131981/disturbances-in-the-control-of-capillary-flow-in-an-aged-app-swe-ps1%C3%AE-e9-model-of-alzheimer-s-disease
#14
Eugenio Gutiérrez-Jiménez, Hugo Angleys, Peter M Rasmussen, Mark J West, Laura Catalini, Nina K Iversen, Morten S Jensen, Sebastian Frische, Leif Østergaard
Vascular changes are thought to contribute to the development of Alzheimer's disease, and both cerebral blood flow and its responses during neural activation are reduced before Alzheimer's disease symptoms onset. One hypothetical explanation is that capillary dysfunction reduces oxygen extraction efficacy. This study compares the morphology and hemodynamics of the microvasculature in the somatosensory cortex of 18-month-old APP(SWE)/PS1ΔE9 (transgenic [Tg]) mice and wild-type (WT) littermates. In particular, the extent to which their capillary transit times homogenize during functional activation was measured and compared...
October 16, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29131592/a-paper-plastic-hybrid-microfluidic-device-for-smartphone-based-colorimetric-analysis-of-urine
#15
M Jalal Uddin, Gyeong Jun Jin, Joon Sub Shim
In this work, a disposable paper-plastic hybrid microfluidic lab-on-a-chip (LOC) has been developed and successfully applied for the colorimetric measurement of urine by the smartphone-based optical platform using an "UrineAnalysis" Android app. The developed device was cost-effectively implemented as a stand-alone hybrid LOC by incorporating the paper-based conventional reagent test strip inside the plastic-based LOC microchannel. The LOC device quantitatively investigated the small volume (40 µL) of urine analytes for the colorimetric reaction of glucose, protein, pH and red blood cell (RBC) in integration with the finger-actuating micro pump...
November 13, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29126246/bringing-numerous-methods-for-expression-and-promoter-analysis-to-a-public-cloud-computing-service
#16
Krzysztof Polanski, Bo Gao, Sam A Mason, Paul Brown, Sascha Ott, Katherine J Denby, David L Wild
Summary: Every year, a large number of novel algorithms are introduced to the scientific community for a myriad of applications, but using these across different research groups is often troublesome, due to suboptimal implementations and specific dependency requirements. This does not have to be the case, as public cloud computing services can easily house tractable implementations within self-contained dependency environments, making the methods easily accessible to a wider public. We have taken 14 popular methods, the majority related to expression data or promoter analysis, developed these up to a good implementation standard and housed the tools in isolated Docker containers which we integrated into the CyVerse Discovery Environment, making these easily usable for a wide community as part of the CyVerse UK project...
November 6, 2017: Bioinformatics
https://www.readbyqxmd.com/read/29125684/magnesium-boosts-the-memory-restorative-effect-of-environmental-enrichment-in-alzheimer-s-disease-mice
#17
Ying Huang, Xian Huang, Ling Zhang, Fang Han, Ke-Liang Pang, Xue Li, Jian-Ying Shen
BACKGROUND: Environmental enrichment (EE) has been shown to enhance cognitive function in mouse models of Alzheimer's disease (AD). Magnesium-L-threonate (MgT) is a compound with a newly discovered effect to rescue learning and memory function in aging and AD mice. AIM: To study the additive therapeutic effect of EE combined with MgT (EM) and the potential mechanism underlying the effects. MATERIALS AND METHODS: APP/PS1 mice were treated with EE, MgT, or combination of EE and MgT (EM) and compared for restored memory function...
November 10, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29125551/assembly-modulated-by-particle-position-and-shape-a-new-concept-in-self-assembly
#18
Joe W Tavacoli, Julien Heuvingh, Olivia Du Roure
In this communication we outline how the bespoke arrangements and design of micron-sized superparamagnetic shapes provide levers to modulate their assembly under homogeneous magnetic fields. We label this new approach, 'assembly modulated by particle position and shape' (APPS). Specifically, using rectangular lattices of superparamagnetic micron-sized cuboids, we construct distinct microstructures by adjusting lattice pitch and angle of array with respect to a magnetic field. Broadly, we find two modes of assembly: (1) immediate 2D jamming of the cuboids as they rotate to align with the applied field (rotation-induced jamming) and (2) aggregation via translation after their full alignment (dipole-dipole assembly)...
November 10, 2017: Materials
https://www.readbyqxmd.com/read/29125393/complementary-support-from-facilitators-and-peers-for-promoting-mhealth-engagement-and-weight-loss
#19
Heewon Kim, Colter D Ray, Alaina M Veluscek
This study investigates the effects of mHealth interventions on sustainable behavior change and weight loss, drawing on in-app user activity data and online survey data. Specifically, we focus on the interactions within mobile support groups in Noom, an mHealth application for obesity intervention, to delve into how social support from facilitators and peers may play differential roles in promoting health outcomes. The results of structural equation modeling (N = 301) demonstrated that (a) perceived facilitator support was positively associated with group members' health information acquisition such as fitness-themed article reading whereas perceived peer support was positively linked to group participation such as posting and responding; (b) perceived peer support was positively related to normative influence among group members, which subsequently increased group members' responses to others' posts; and (c) health information reading and in-group posting promoted weight loss; however, merely responding to others' posts did not lead to weight-loss success...
November 2017: Journal of Health Communication
https://www.readbyqxmd.com/read/29124300/xanthoceraside-modulates-nr2b-containing-nmda-receptors-at-synapses-and-rescues-learning-memory-deficits-in-app-ps1-transgenic-mice
#20
Lin Zhu, Lei Yang, Xuemei Zhao, Danyang Liu, Xiaoli Guo, Peng Liu, Tianyan Chi, Xuefei Ji, Libo Zou
RATIONALE: Alzheimer's disease (AD) is characterized by memory loss and synaptic damage. Previous studies suggested that xanthoceraside decreases glutamate-induced PC12 cell death, ameliorates memory deficits, and increases the number of dendritic spines in AD mice. These results indicated that xanthoceraside might have activities that protect synaptic plasticity. Herein, we detected the effect of xanthoceraside on synaptic function. MATERIALS AND METHODS: Three-month-old APP/PS1 transgenic mice were orally treated with xanthoceraside (0...
November 9, 2017: Psychopharmacology
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