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https://www.readbyqxmd.com/read/29165844/oral-microbiomes-from-hunter-gatherers-and-traditional-farmers-reveal-shifts-in-commensal-balance-and-pathogen-load-linked-to-diet
#1
Florent Lassalle, Matteo Spagnoletti, Matteo Fumagalli, Liam Shaw, Mark Dyble, Catherine Walker, Mark G Thomas, Andrea Bamberg Migliano, Francois Balloux
Maladaptation to modern diets has been implicated in several chronic disorders. Given the higher prevalence of disease such as dental caries and chronic gum diseases in industrialized societies, we sought to investigate the impact of different subsistence strategies on oral health and physiology, as documented by the oral microbiome. To control for confounding variables such as environment and host genetics, we sampled saliva from three pairs of populations of hunter-gatherers and traditional farmers living in close proximity in the Philippines...
November 22, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/29163522/the-vagus-nerve-in-the-neuro-immune-axis-implications-in-the-pathology-of-the-gastrointestinal-tract
#2
REVIEW
Bruno Bonaz, Valérie Sinniger, Sonia Pellissier
The vagus nerve (VN) is the longest nerve of the organism and a major component of the parasympathetic nervous system which constitutes the autonomic nervous system (ANS), with the sympathetic nervous system. There is classically an equilibrium between the sympathetic and parasympathetic nervous systems which is responsible for the maintenance of homeostasis. An imbalance of the ANS is observed in various pathologic conditions. The VN, a mixed nerve with 4/5 afferent and 1/5 efferent fibers, is a key component of the neuro-immune and brain-gut axes through a bidirectional communication between the brain and the gastrointestinal (GI) tract...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163240/interleukin-6-in-schizophrenia-is-there-a-therapeutic-relevance
#3
REVIEW
Milica Milovan Borovcanin, Ivan Jovanovic, Gordana Radosavljevic, Jelena Pantic, Slavica Minic Janicijevic, Nebojsa Arsenijevic, Miodrag L Lukic
Renewing interest in immune aspects of schizophrenia and new findings about the brain-fat axis encourage us to discuss the possible role of interleukin-6 (IL-6) in schizophrenia. Previously, it was suggested that a primary alteration of the innate immune system may be relevant in schizophrenia. Functional dichotomy of IL-6 suggests that this chemical messenger may be responsible for regulating the balance between pro- and anti-inflammatory responses, with tissue-specific properties at the periphery and in the central nervous system...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/29163211/oxidative-stress-in-the-local-and-systemic-events-of-apical-periodontitis
#4
REVIEW
Patricia Hernández-Ríos, Pirkko J Pussinen, Rolando Vernal, Marcela Hernández
Oxidative stress is involved in the pathogenesis of a variety of inflammatory disorders. Apical periodontitis (AP) usually results in the formation of an osteolytic apical lesion (AL) caused by the immune response to endodontic infection. Reactive oxygen species (ROS) produced by phagocytic cells in response to bacterial challenge represent an important host defense mechanism, but disturbed redox balance results in tissue injury. This mini review focuses on the role of oxidative stress in the local and associated systemic events in chronic apical periodontitis...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29163043/combination-therapy-in-fragile-x-syndrome-possibilities-and-pitfalls-illustrated-by-targeting-the-mglur5-and-gaba-pathway-simultaneously
#5
Shimriet Zeidler, Helen de Boer, Renate K Hukema, Rob Willemsen
Fragile X syndrome (FXS) is the most common monogenetic cause of intellectual disability and autism. The disorder is characterized by altered synaptic plasticity in the brain. Synaptic plasticity is tightly regulated by a complex balance of different synaptic pathways. In FXS, various synaptic pathways are disrupted, including the excitatory metabotropic glutamate receptor 5 (mGluR5) and the inhibitory γ-aminobutyric acid (GABA) pathways. Targeting each of these pathways individually, has demonstrated beneficial effects in animal models, but not in patients with FXS...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29155025/understanding-the-role-of-mammalian-sterile-20-like-kinase-1-mst1-in-cardiovascular-disorders
#6
REVIEW
Yang Yang, Haichang Wang, Zhiqiang Ma, Wei Hu, Dongdong Sun
Hippo signaling is a conserved pathway and plays important role in controlling cell proliferation and differentiation. As critical components of the Hippo pathway in mammals, mammalian sterile 20-like kinase 1 (MST1) participate in cell apoptosis and cell proliferation. Yes-associated protein (YAP) acts as a downstream transcriptional co-activator of MST1. MST1 is present in heart tissue and helps determine the fate of cardiomyocytes by regulating the balance between autophagy and apoptosis. Recent studies showed MST1 signaling is an essential participant in many cardiovascular disorders, including aortic dissection, aortic aneurysm, atherosclerosis, myocardial ischemic injury, and cardiomyopathy...
November 15, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29154203/unbending-mind-individuals-with-hoarding-disorder-do-not-modify-decision-strategy-in-response-to-feedback-under-risk
#7
Helen Pushkarskaya, David F Tolin, Daniel Henick, Ifat Levy, Christopher Pittenger
Cognitive-behavioral models of hoarding disorder emphasize impairments in information processing and decision making in the genesis of hoarding symptomology. We propose and test the novel hypothesis that individuals with hoarding are maladaptively biased towards a deliberative decision style. While deliberative strategies are often considered normative, they are not always adaptable to the limitations imposed by many real-world decision contexts. We examined decision-making patterns in 19 individuals with hoarding and 19 healthy controls, using a behavioral task that quantifies selection of decision strategies in a novel environment with known probabilities (risk) in response to feedback...
November 2, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29153931/disturbances-in-oxygen-balance-during-cardiopulmonary-bypass-a-risk-factor-for-postoperative-delirium
#8
Nina Smulter, Helena Claesson Lingehall, Yngve Gustafson, Birgitta Olofsson, Karl Gunnar Engström, Micael Appelblad, Staffan Svenmarker
OBJECTIVE: The aim of this study was to determine risk factors for postoperative delirium after cardiac surgery, specifically associated with the conduct of cardiopulmonary bypass (CPB). DESIGN: Prospective observational study. SETTING: Heart Centre, University Hospital. PARTICIPANTS: The study included 142 patients aged 70 years and older scheduled for elective cardiac surgery with CPB. INTERVENTIONS: Risk factor analysis comprised information collected from the hospital clinical and CPB dedicated databases in addition to the medical chart...
August 25, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/29153410/balancing-ethics-and-care-in-disorders-of-consciousness
#9
Laura Y Cabrera, Judy Illes
No abstract text is available yet for this article.
November 15, 2017: Lancet Neurology
https://www.readbyqxmd.com/read/29152371/crystal-structures-of-the-solid-solutions-na3zn0-912cd0-088b5o10-and-na3zn0-845mg0-155b5o10
#10
Xue-An Chen, Ya-Hua Zhang, Xin-An Chang, Wei-Qiang Xiao
Two new penta-borates, tris-odium zinc cadmium penta-borate, Na3Zn0.912Cd0.088B5O10, and tris-odium zinc magnesium penta-borate, Na3Zn0.845Mg0.155B5O10, have been synthesized by high-temperature solution reactions at 1023 K. Their crystal structures were determined by single-crystal X-ray diffraction. Both solid solutions crystallize in the ortho-rhom-bic form of the parent compound Na3ZnB5O10 (space group type Pbca, Z = 8) and contain the double ring [B5O10](5-) anion composed of one BO4 tetra-hedron and four BO3 triangles as the basic structural motif...
November 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29152356/crystal-structure-of-aqua-perchlorato-bis-%C3%AE-e-2-2-pyridin-2-yl-eth-yl-imino-meth-yl-phenolato-%C3%AE%C2%BA-4-n-n-o-o-dicopper-ii-perchlorate
#11
Ugochukwu Okeke, Yilma Gultneh, Ray J Butcher
The title compound, [Cu2(ClO4)(C14H13N2O)2(H2O)]ClO4, crystallizes as an unsymmetrical dinuclear cation bridged by the phen-oxy O atoms with one Cu(II) atom coordinated by a water mol-ecule and the other by a perchlorate anion, thus making both Cu(II) atoms five-coordinate, and with a further perchlorate anion present for charge balance. A long inter-action [2.9893 (5) Å] between one of the two Cu(II) atoms and an O atom of the perchlorate counter-ion links the cations and anions into linear chains along the a-axis direction...
November 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29150527/transcriptional-regulators-of-redox-balance-and-other-homeostatic-processes-with-the-potential-to-alter-neurodegenerative-disease-trajectory
#12
REVIEW
Scott W Burnside, Giles E Hardingham
Diverse neurodegenerative diseases share some common aspects to their pathology, with many showing evidence of disruption to the brain's numerous homeostatic processes. As such, imbalanced inflammatory status, glutamate dyshomeostasis, hypometabolism and oxidative stress are implicated in many disorders. That these pathological processes can influence each other both up- and downstream makes for a complicated picture, but means that successfully targeting one area may have an effect on others. This targeting requires an understanding of the mechanisms by which homeostasis is maintained during health, in order to uncover strategies to boost homeostasis in disease...
November 17, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/29149835/forkhead-transcription-factors-formulating-a-foxo-target-for-cognitive-loss
#13
Kenneth Maiese
BACKGROUND: With almost 47 million individuals worldwide suffering from some aspect of dementia, it is clear that cognitive loss impacts a significant proportion of the global population. Unfortunately, definitive treatments to resolve or prevent the onset of cognitive loss are limited. In most cases such care is currently non-existent prompting the need for novel treatment strategies. METHODS: Mammalian forkhead transcription factors of the O class (FoxO) are one such avenue of investigation that offer an exciting potential to bring new treatments forward for disorders that involve cognitive loss...
November 15, 2017: Current Neurovascular Research
https://www.readbyqxmd.com/read/29148136/effects-of-sensitive-electrical-stimulation-based-somatosensory-cueing-in-parkinson-s-disease-gait-and-freezing-of-gait-assessment
#14
Benoît Sijobert, Christine Azevedo, David Andreu, Claudia Verna, Christian Geny
This study aims to investigate the effect of a somatosensory cueing on gait disorders in subjects with Parkinson's disease (PD). After having performed stepping in place and timed up and go assessing tasks, 13 participants with PD were equipped with an electrical stimulator and an inertial measurement unit (IMU) located under the lateral malleolus on the sagittal plane. Electrodes were positioned under the arch of the foot and electrical stimulation (ES) parameters (five 500 µs/phase charge-balanced biphasic pulses delivered at 200 Hz, repeated four times at 10 Hz) adjusted to deliver a sensitive signal...
November 2017: Artificial Organs
https://www.readbyqxmd.com/read/29143647/modelling-stillbirth-mortality-reduction-with-the-lives-saved-tool
#15
Hannah Blencowe, Victoria B Chou, Joy E Lawn, Zulfiqar A Bhutta
BACKGROUND: The worldwide burden of stillbirths is large, with an estimated 2.6 million babies stillborn in 2015 including 1.3 million dying during labour. The Every Newborn Action Plan set a stillbirth target of ≤12 per 1000 in all countries by 2030. Planning tools will be essential as countries set policy and plan investment to scale up interventions to meet this target. This paper summarises the approach taken for modelling the impact of scaling-up health interventions on stillbirths in the Lives Saved tool (LiST), and potential future refinements...
November 7, 2017: BMC Public Health
https://www.readbyqxmd.com/read/29143067/characterization-and-fine-mapping-of-qkc7-03-a-major-locus-for-kernel-cracking-in-maize
#16
Mingtao Yang, Lin Chen, Xun Wu, Xing Gao, Chunhui Li, Yanchun Song, Dengfeng Zhang, Yunsu Shi, Yu Li, Yong-Xiang Li, Tianyu Wang
A major locus conferring kernel cracking in maize was characterized and fine mapped to an interval of 416.27 kb. Meanwhile, combining the results of transcriptomic analysis, the candidate gene was inferred. Seed development requires a proper structural and physiological balance between the maternal tissues and the internal structures of the seeds. In maize, kernel cracking is a disorder in this balance that seriously limits quality and yield and is characterized by a cracked pericarp at the kernel top and endosperm everting...
November 15, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29141617/comparison-of-hso4-cl-and-meco2-as-anions-in-pretreatment-of-aspen-and-spruce-with-imidazolium-based-ionic-liquids
#17
Zhao Wang, John Gräsvik, Leif J Jönsson, Sandra Winestrand
BACKGROUND: Ionic liquids (ILs) draw attention as green solvents for pretreatment of lignocellulose before enzymatic saccharification. Imidazolium-based ILs with different anionic constituents ([HSO4](-), [Cl](-), [MeCO2](-)) were compared with regard to pretreatment of wood from aspen and spruce. The objective was to elucidate how the choice of anionic constituent affected the suitability of using the IL for pretreatment of hardwood, such as aspen, and softwood, such as spruce. The investigation covered a thorough analysis of the mass balance of the IL pretreatments, the effects of pretreatment on the cell wall structure as assessed by fluorescence microscopy, and the effects of pretreatment on the susceptibility to enzymatic saccharification...
November 15, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/29141211/lateral-preoptic-control-of-the-lateral-habenula-through-convergent-glutamate-and-gaba-transmission
#18
David J Barker, Jorge Miranda-Barrientos, Shiliang Zhang, David H Root, Hui-Ling Wang, Bing Liu, Erin S Calipari, Marisela Morales
The lateral habenula (LHb) is a brain structure that participates in cognitive and emotional processing and has been implicated in several mental disorders. Although one of the largest inputs to the LHb originates in the lateral preoptic area (LPO), little is known about how the LPO participates in the regulation of LHb function. Here, we provide evidence that the LPO exerts bivalent control over the LHb through the convergent transmission of LPO glutamate and γ-aminobutyric acid (GABA) onto single LHb neurons...
November 14, 2017: Cell Reports
https://www.readbyqxmd.com/read/29134969/the-prevalence-and-impact-of-overlapping-rome-iv-diagnosed-functional-gastrointestinal-disorders-on-somatization-quality-of-life-and-healthcare-utilization-a-cross-sectional-general-population-study-in-three-countries
#19
Imran Aziz, Olafur S Palsson, Hans Törnblom, Ami D Sperber, William E Whitehead, Magnus Simrén
OBJECTIVES: The population prevalence of Rome IV-diagnosed functional gastrointestinal disorders (FGIDs) and their cumulative effect on health impairment is unknown. METHODS: An internet-based cross-sectional health survey was completed by 5,931 of 6,300 general population adults from three English-speaking countries (2100 each from USA, Canada, and UK). Quota-based sampling was used to generate demographically balanced and population representative samples with regards to age, sex, and education level...
November 14, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/29134752/ideal-bandgap-organic-inorganic-hybrid-perovskite-solar-cells
#20
Zhibin Yang, Adharsh Rajagopal, Alex K-Y Jen
Extremely high power conversion efficiencies (PCEs) of ≈20-22% are realized through intensive research and development of 1.5-1.6 eV bandgap perovskite absorbers. However, development of ideal bandgap (1.3-1.4 eV) absorbers is pivotal to further improve PCE of single junction perovskite solar cells (PVSCs) because of a better balance between absorption loss of sub-bandgap photons and thermalization loss of above-bandgap photons as demonstrated by the Shockley-Queisser detailed balanced calculation. Ideal bandgap PVSCs are currently hindered by the poor optoelectronic quality of perovskite absorbers and their PCEs have stagnated at <15%...
November 14, 2017: Advanced Materials
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