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https://www.readbyqxmd.com/read/28241468/hyperarousal-and-beyond-new-insights-to-the-pathophysiology-of-insomnia-disorder-through-functional-neuroimaging-studies
#1
REVIEW
Daniel B Kay, Daniel J Buysse
Neuroimaging studies have produced seemingly contradictory findings in regards to the pathophysiology of insomnia. Although most study results are interpreted from the perspective of a "hyperarousal" model, the aggregate findings from neuroimaging studies suggest a more complex model is needed. We provide a review of the major findings from neuroimaging studies, then discuss them in relation to a heuristic model of sleep-wake states that involves three major factors: wake drive, sleep drive, and level of conscious awareness...
February 23, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28241111/efficient-enrichment-and-analyses-of-bacteria-at-ultralow-concentration-with-quick-response-magnetic-nanospheres
#2
Cong-Ying Wen, Yong-Zhong Jiang, Xi-You Li, Man Tang, Ling-Ling Wu, Jiao Hu, Dai-Wen Pang, Jing-Bin Zeng
Enrichment and purification of bacteria from complex matrices are crucial for their detection and investigation, in which magnetic separation techniques have recently show great application advantages. However, currently used magnetic particles all have their own limitations: Magnetic microparticles exhibit poor binding capacity with targets, while magnetic nanoparticles suffer slow magnetic response and high loss rate during treatment process. Herein, we used a highly controllable layer-by-layer assembly method to fabricate quick-response magnetic nanospheres (MNs), and with Salmonella typhimurium as a model, we successfully achieve their rapid and efficient enrichment...
February 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28240627/a-troubled-asset-relief-program-for-the-patient-centered-medical-home
#3
John Wasson
The patient-centered medical home (PCMH) costs a lot to build and maintain. Deficiencies have become apparent: it has provided few of its advertised benefits and is becoming a troubled asset. A troubled asset relief program for the PCHM is needed (PCMH-TARP). This report presents a PCMH-TARP that places patients' interests first. The PCMH-TARP addresses regulatory barriers and greatly simplifies the complexity of the PCMH blueprint. A disruptively renovated PCMH will stand on a foundation of measures that matter to patients...
April 2017: Journal of Ambulatory Care Management
https://www.readbyqxmd.com/read/28240374/effects-of-hypoxia-in-long-term-in-vitro-expansion-of-human-bone-marrow-derived-mesenchymal-stem-cells
#4
Annelise Pezzi, Bruna Amorin, Álvaro Laureano, Vanessa Valim, Alice Dahmer, Bruna Zambonato, Filipe Sehn, Ianaê Wilke, Lia Bruschi, Maria Aparecida Lima da Silva, Eduardo Filippi-Chiela, Lucia Silla
INTRODUCTION: Mesenchymal stem cells (MSC) are considered multipotent stromal, non-hematopoietic cells with properties of self-renovation and differentiation. Optimal conditions for culture of MSC have been under investigation. The oxygen tension used for cultivation has been studied and appears to play an important role in biological behavior of mesenchymal cells. The aim is characterize MSC in hypoxia and normoxia conditions comparing their morphological and functional characteristics...
February 27, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28240216/training-free-compressed-sensing-for-wireless-neural-recording-using-analysis-model-and-group-weighted-l1-minimization
#5
Biao Sun, Wenfeng Zhao, Xinshan Zhu
OBJECTIVE: Data compression is crucial for resource-constrained wireless neural recording applications with limited data bandwidth, and Compressed Sensing (CS) theory has successfully demonstrated its potential in neural recording applications. In this paper, an analytical, training-free CS recovery method, termed Group Weighted Analysis l1-Minimization (GWALM), is proposed for wireless neural recording. APPROACH: The GWALM method consists of three parts: 1) The analysis model is adopted to enforce sparsity of the neural signals, therefore overcoming the drawbacks of conventional synthesis models and enhancing the recovery performance...
February 27, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28239975/preparing-to-read-the-ubiquitin-code-top-down-analysis-of-unanchored-ubiquitin-tetramers
#6
Amanda E Lee, Lucia Geis-Asteggiante, Emma K Dixon, Meredith Miller, Yan Wang, David Fushman, Catherine Fenselau
The characterization of polyubiquitin chains has been an analytical challenge for several decades. It has been shown that anchored and unanchored polyubiquitin chains with different isopeptide linkages and lengths exhibit a wide range of profoundly different cellular functions. However, structure function studies have been hindered by the difficulty of characterizing these complex chain structures. This report presents a broadly applicable workflow to characterize ubiquitin tetramers without the need for genetic mutations or reiterative immunoprecipitations...
August 2016: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28239714/synthesis-structural-characterization-and-magnetic-behaviour-of-a-family-of-coln-butterfly-compounds
#7
Alejandro V Funes, Luca Carrella, Yvonne Rechkemmer, Joris van Slageren, Eva Rentschler, Pablo Alborés
We have successfully prepared and structurally characterized a family of butterfly-like [CoLn] complexes where all magnetic properties are due to the Ln(iii) ions. The complexes with Ln = Tb(1), Dy(2), Ho(3), Er(4) and Yb(5) are iso-structural. An exception is the complex with Ln = Gd(6) which strings in a one dimensional chain. The structural similarity together with the high tendency of the crystallites to align under an applied magnetic field allowed an overall DC magnetic data treatment to extract phenomenological crystal field parameters and hence to determine the ground state multiplet energy level splitting...
February 27, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28239656/autoreactive-helper-t-cells-alleviate-the-need-for-intrinsic-tlr-signaling-in-autoreactive-b-cell-activation
#8
Josephine R Giles, Adriana Turqueti Neves, Ann Marshak-Rothstein, Mark J Shlomchik
T cells play a significant role in the pathogenesis of systemic autoimmune diseases, including systemic lupus erythematosus; however, there is relatively little information on the nature and specificity of autoreactive T cells. Identifying such cells has been technically difficult because they are likely to be rare and low affinity. Here, we report a method for identifying autoreactive T cell clones that recognize proteins contained in autoantibody immune complexes, providing direct evidence that functional autoreactive helper T cells exist in the periphery of normal mice...
February 23, 2017: JCI Insight
https://www.readbyqxmd.com/read/28239603/framing-undergraduate-public-health-education-as-liberal-education-who-are-we-training-our-students-to-be-and-how-do-we-do-that
#9
Marc T Kiviniemi, Sara L C Mackenzie
The rapid development of the undergraduate major in public health over the past 15 years has led to a debate about the most appropriate framing for the degree. Should it be viewed as a liberal education degree (akin to academic disciplines such as psychology and political science) or as a professional training degree (akin to disciplines such as nursing and management)? This paper presents an overview of both the liberal education and the professional training degree approaches to the undergraduate public health degree...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28239597/perceived-cognitive-deficits-are-associated-with-diabetes-self-management-in-a-multiethnic-sample
#10
Heather Cuevas, Alexa Stuifbergen
BACKGROUND: People with diabetes have almost twice the risk of developing cognitive impairment or dementia as do those without diabetes, and about half of older adults with diabetes will become functionally disabled or cognitively impaired. But diabetes requires complex self-management: patients must learn about the implications of their disease; manage their diets, physical activity, and medication; and monitor their blood glucose. Difficulties with cognition can hinder these activities...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28239374/moraxella-catarrhalis-macrolide-resistant-isolates-are-highly-concentrated-in-two-mlst-clonal-complexes-ccn10-and-cc363
#11
Ya-Li Liu, Meng Xiao, Jing-Wei Cheng, He-Ping Xu, Zhi-Peng Xu, Sha Ye, Wen-Juan Zhang, Timothy Kudinha, Fanrong Kong, Ying-Chun Xu
To gain some insights into the molecular evolution of Moraxella catarrhalis macrolide resistance, PCR and sequencing analysis of the 23S rRNA gene, copB typing and multilocus sequence typing (MLST) were performed on 181 M. catarrhalis isolates. The isolates were obtained from children (n = 47) and adults (n = 134) presenting with respiratory disease in the years 2010-2014. Macrolide resistance was highly age-related, and nucleotide position alterations at A2330T could be detected in all macrolide-resistant isolates...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28239005/public-housing-relocations-and-relationships-of-changes-in-neighborhood-disadvantage-and-transportation-access-to-unmet-need-for-medical-care
#12
Danielle F Haley, Sabriya Linton, Ruiyan Luo, Josalin Hunter-Jones, Adaora A Adimora, Gina M Wingood, Loida Bonney, Zev Ross, Hannah L Cooper
INTRODUCTION: Cross-sectional research suggests that neighborhood characteristics and transportation access shape unmet need for medical care. This longitudinal analysis explores relationships of changes in neighborhood socioeconomic disadvantage and trans- portation access to unmet need for medical care. METHODS: We analyzed seven waves of data from African American adults (N = 172) relocating from severely distressed public housing complexes in Atlanta, Georgia...
2017: Journal of Health Care for the Poor and Underserved
https://www.readbyqxmd.com/read/28238672/thermodynamics-of-interactions-between-mammalian-cytochromes-p450-and-b5
#13
Evgeny Yablokov, Anna Florinskaya, Alexei Medvedev, Gennady Sergeev, Natallia Strushkevich, Alexander Luschik, Tatsiana Shkel, Irina Haidukevich, Andrei Gilep, Sergey Usanov, Alexis Ivanov
Cytochromes P450 (CYPs) play an important role in the metabolism of xenobiotics and various endogenous substrates. Being a crucial component of the microsomal monooxygenase system, CYPs are involved in numerous protein-protein interactions. However, mechanisms underlying molecular interactions between components of the monooxygenase system still need better characterization. In this study thermodynamic parameters of paired interactions between mammalian CYPs and cytochromes b5 (CYB5) have been evaluated using a Surface Plasmon Resonance (SPR) based biosensor Biacore 3000...
February 23, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28238171/using-a-relative-health-indicator-rhi-metric-to-estimate-health-risk-reductions-in-drinking-water
#14
Katherine A Alfredo, Chad Seidel, Amlan Ghosh, J Alan Roberson
When a new drinking water regulation is being developed, the USEPA conducts a health risk reduction and cost analysis to, in part, estimate quantifiable and non-quantifiable cost and benefits of the various regulatory alternatives. Numerous methodologies are available for cumulative risk assessment ranging from primarily qualitative to primarily quantitative. This research developed a summary metric of relative cumulative health impacts resulting from drinking water, the relative health indicator (RHI). An intermediate level of quantification and modeling was chosen, one which retains the concept of an aggregated metric of public health impact and hence allows for comparisons to be made across "cups of water," but avoids the need for development and use of complex models that are beyond the existing state of the science...
March 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28238020/haploid-embryo-production-in-rice-and-maize-induced-by-psasgr-bbml-transgenes
#15
Joann A Conner, Maricel Podio, Peggy Ozias-Akins
The PsASGR - BBML transgene, derived from a wild apomictic grass species, can induce parthenogenesis, embryo formation without fertilization, in rice and maize, leading to the formation of haploid plants. The ability to engineer apomictic crop plants using genes identified from naturally occurring apomicts will depend on the ability of those genes to function in crop plants. The PsASGR-BBML transgene, derived from the apomictic species Pennisetum squamulatum, promotes parthenogenesis in sexual pearl millet, a member of the same genus, leading to the formation of haploid embryos...
February 25, 2017: Plant Reproduction
https://www.readbyqxmd.com/read/28237761/disordered-lives-life-circumstances-and-clinical-characteristics-of-very-frequent-users-of-emergency-departments-for-primary-mental-health-complaints
#16
Xiangfei Meng, Tracy Muggli, Marilyn Baetz, Carl D'Arcy
This study explored the life circumstances and clinical characteristics of very frequent users of emergency departments (EDs) presenting with a primary mental health complaint. Patients with 10 or more EDs visits in 2012 with a primary psychiatric diagnosis in a Canadian regional health authority were identified from electronic administrative files. The hospital charts for these patients were thoroughly reviewed for a three-year period, from 2011 to 2013. A retrospective thematic analysis was undertaken. Very frequent users of EDs were generally young to early middle aged, unemployed, living in transient accommodations, having substance abuse diagnoses, and self-referred to EDs for a variety of psychiatric and health symptoms and/or unmet needs...
February 21, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28237731/rhenium-i-tricarbonyl-compounds-of-bioactive-thiosemicarbazones-synthesis-characterization-and-activity-against-trypanosoma-cruzi
#17
Esteban Rodríguez Arce, Ignacio Machado, Belén Rodríguez, Michel Lapier, María Carolina Zúñiga, Juan Diego Maya, Claudio Olea Azar, Lucía Otero, Dinorah Gambino
American Trypanosomiasis is a chronic infection discovered and described in 1909 by the Brazilian scientist Carlos Chagas. It is caused by the protozoan parasite Trypanosoma cruzi. Although it affects about 10million people in Latin America, the current chemotherapy is still inadequate. The discovery of new drugs is urgently needed. Our group is focused on the development of prospective metal-based drugs mainly based on bioactive ligands and pharmacologically interesting metal ions. In this work three new rhenium(I) tricarbonyl compounds fac-[Re(I)(CO)3Br(HL)] where HL=5-nitrofuryl containing thiosemicarbazones were synthesized and fully characterized in solution and in the solid state...
January 23, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28237714/application-of-data-fusion-techniques-and-technologies-for-wearable-health-monitoring
#18
REVIEW
Rachel C King, Emma Villeneuve, Ruth J White, R Simon Sherratt, William Holderbaum, William S Harwin
Technological advances in sensors and communications have enabled discrete integration into everyday objects, both in the home and about the person. Information gathered by monitoring physiological, behavioural, and social aspects of our lives, can be used to achieve a positive impact on quality of life, health, and well-being. Wearable sensors are at the cusp of becoming truly pervasive, and could be woven into the clothes and accessories that we wear such that they become ubiquitous and transparent. To interpret the complex multidimensional information provided by these sensors, data fusion techniques are employed to provide a meaningful representation of the sensor outputs...
February 22, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28237659/production-of-mono-and-polyclonal-antibodies-to-citrus-leprosis-virus-c2-and-their-application-in-triple-antibody-sandwich-elisa-and-immunocapture-rt-pcr-diagnostic-assays
#19
Nandlal Choudhary, Avijit Roy, Leon M G, G Wei, M K Nakhla, L Levy, R H Brlansky
The newly discovered Citrus leprosis virus cytoplasmic type 2 (CiLV-C2) is one of the causal virus of citrus leprosis disease complex; which leads to substantial loss of citrus production in the states of Meta and Casanare of Colombia. Specific and sensitive detection methods are needed to monitor the dissemination of CiLV-C2 in Colombia, and to prevent introduction of CiLV-C2 to other citrus growing countries. Toward this end, putative coat protein gene (CPG) of CiLV-C2 was amplified from CiLV-C2 infected citrus tissues...
February 22, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28237514/allodynia-lowering-induced-by-cannabinoids-and-endocannabinoids-alice
#20
REVIEW
Livio Luongo, Katarzyna Starowicz, Sabatino Maione, Vincenzo Di Marzo
Neuropathic pain is a neurological disorder that strongly affects the quality of life of patients. The molecular and cellular mechanisms at the basis of the neuropathic pain establishment still need to be clarified. Among the neuromodulators involved in the pathological pain pathways, endocannabinoid system could be deeply involved in both neuronal and non-neuronal mechanisms responsible for the appearance of tactile allodynia. Indeed, the function and dysfunction of this complex system in the molecular and cellular mechanisms of chronic pain induction and maintenance has been widely studied over the last two decades...
February 22, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
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