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https://www.readbyqxmd.com/read/28448947/traveling-from-the-hypothalamus-to-the-adipose-tissue-the-thermogenic-pathway
#1
REVIEW
Cristina Contreras, Rubén Nogueiras, Carlos Diéguez, Kamal Rahmouni, Miguel López
Brown adipose tissue (BAT) is a specialized tissue critical for non-shivering thermogenesis producing heat through mitochondrial uncoupling; whereas white adipose tissue (WAT) is responsible of energy storage in the form of triglycerides. Another type of fat has been described, the beige adipose tissue; this tissue emerges in existing WAT depots but with thermogenic ability, a phenomenon known as browning. Several peripheral signals relaying information about energy status act in the brain, particularly the hypothalamus, to regulate thermogenesis in BAT and browning of WAT...
April 15, 2017: Redox Biology
https://www.readbyqxmd.com/read/28448825/health-policy-in-the-concertaci%C3%A3-n-era-1990-2010-reforms-the-chilean-way
#2
María Soledad Martinez-Gutierrez, Cristóbal Cuadrado
The Chilean health system has experienced important transformations in the last decades with a neoliberal turn to privatization of the health insurance and healthcare market since the Pinochet reforms of the 1980s. During 20 years of center-left political coalition governments several reforms were attempted to regulate and reform such markets. This paper analyzes regulatory policies for the private health insurance and health care delivery market, adopted during the 1990-2010 period. A framework of variation in market types developed by Gingrich is adopted as analytical perspective...
April 9, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28446866/the-contribution-of-immune-infiltrates-to-ototoxicity-and-cochlear-hair-cell-loss
#3
REVIEW
Megan B Wood, Jian Zuo
Cells of the immune system have been shown to infiltrate the cochlea after acoustic trauma or ototoxic drug treatment; however, the contribution of the immune system to hair cell loss in the inner ear is incompletely understood. Most studies have concentrated on the immediate innate response to hair cell damage using CD45 as a broad marker for all immune cells. More recent studies have used RNA sequencing, GeneChip arrays and quantitative PCR to analyze gene expression in the entire cochlea after auditory trauma, leading to a better understanding of the chemokines and cytokines that attract immune cells to the cochlea...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28446342/unveiling-the-nature-of-charge-carrier-interactions-by-electroabsorption-spectroscopy-an-illustration-with-lead-halide-perovskites
#4
Marine E F Bouduban, Andrés Burgos-Caminal, Joël Teuscher, Jacques-E Moser
Unravelling the nature of the interactions between photogenerated charge carriers in solar energy conversion devices is key to enhance performance. In this perspective, we discuss electroabsorption spectroscopy (EAS), as the spectral bandshape of the electroabsorption (EA) signal directly depends on the strength of the charge carrier interactions. For instance, the electroabsorption response in molecular or confined excitonic systems can be modelled perturbatively yielding the Stark effect. In contrast, most solids exhibit weaker interactions, and a perturbative approach cannot be taken in general...
April 26, 2017: Chimia
https://www.readbyqxmd.com/read/28446045/telemonitoring-in-home-complex-chronic-patients-from-primary-care-in-routine-clinical-practice-impact-on-healthcare-resources-use
#5
Iñaki Martín-Lesende, Estibalitz Orruño, Maider Mateos, Elizabete Recalde, José Asua, Eva Reviriego, Juan Carlos Bayón
BACKGROUND: Recent evidence indicates that home telemonitoring of chronic patients reduces the use of healthcare resources. However, further studies exploring this issue are needed in primary care. OBJECTIVES: To assess the impact of a primary care-based home telemonitoring intervention for highly unstable chronic patients on the use of healthcare resources. METHODS: A one-year follow-up before and after exploratory study, without control group, was conducted...
December 2017: European Journal of General Practice
https://www.readbyqxmd.com/read/28445957/peripheral-kynurenine-tryptophan-ratio-is-not-a-reliable-marker-of-systemic-indoleamine-2-3-dioxygenase-a-lesson-drawn-from-patients-on-hemodialysis
#6
Yuanhan Chen, Zhen Xie, Chenggen Xiao, Min Zhang, Zhilian Li, Jianteng Xie, Yusheng Zhang, Xingchen Zhao, Pengfei Zeng, Liyi Mo, Xinling Liang, Wei Shi
Indoleamine 2,3-dioxygenase (IDO) has emerged as a pivotal enzyme for mediating immune tolerance. Because IDO metabolizes tryptophan into kynurenine, the plasma kynurenine/tryptophan (Kyn/Trp) ratio has been widely used as a marker of systemic IDO. Here, we evaluated the clinical value of using the plasma Kyn/Trp ratio to estimate cell-mediated immune responses to tuberculin skin testing and risk of new bacterial infection. We also compared the Kyn/Trp ratio to a novel IDO marker, the IDO median fluorescence index (MFI) of peripheral blood mononuclear cells, which was determined by flow cytometry...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445242/increased-mortality-and-length-of-stay-associated-with-medical-emergency-team-review-in-hospitalized-pediatric-patients-a-retrospective-cohort-study
#7
Brianna McKelvie, James Dayre McNally, Jason Chan, Franco Momoli, Christa Ramsay, Anna-Theresa Lobos
OBJECTIVE: Rapid response systems using medical emergency teams reduce hospital wide cardiorespiratory arrest and mortality. While rapid response systems improve hospital-wide outcomes, children receiving medical emergency team review may still be at increased risk for morbidity and mortality. The study purpose was to compare the length of stay and mortality rate in children receiving a medical emergency team review with those of other hospitalized children. DESIGN: Retrospective cohort study...
April 25, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28445241/serum-neutrophil-gelatinase-associated-lipocalin-a-diagnostic-marker-in-pediatric-sepsis
#8
Nagwan Yossery Saleh, Wafaa Moustafa M Abo El Fotoh, Mahmoud A El-Hawy
OBJECTIVES: Sepsis is a life-threatening condition that arises when the response of the body to infection injures its own tissues and organs. The early prediction of sepsis by current clinical and laboratory methods remains inadequate. Serum neutrophil gelatinase-associated lipocalin level is increased in sepsis irrespective of renal dysfunction. Therefore, we aimed to correlate the serum neutrophil gelatinase-associated lipocalin value determined at admission with clinical progression and severity of disease in critically ill children and to declare its role as a potential diagnostic and prognostic marker for sepsis in critically ill children in the emergency department...
April 25, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28444759/dysregulated-cd46-shedding-interferes-with-th1-contraction-in-systemic-lupus-erythematosus
#9
Ursula Ellinghaus, Andrea Cortini, Christopher L Pinder, Gaelle Le Friec, Claudia Kemper, Timothy J Vyse
IFN-γ-producing T helper 1 (Th1) cell responses mediate protection against infections but uncontrolled Th1 activity also contributes to a broad range of autoimmune diseases. Autocrine complement activation has recently emerged as key in the induction and contraction of human Th1 immunity: Activation of the complement regulator CD46 and the C3aR expressed by CD4(+) T cells via autocrine generated ligands C3b and C3a, respectively, are critical to IFN-γ production. Further, CD46-mediated signals also induce co-expression of immunosuppressive IL-10 in Th1 cells and transition into a (self)-regulating and contracting phase...
April 26, 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28444052/healthcare-regions-and-their-care-networks-an-organizational-systemic-model-for-sus
#10
Lenir Santos
This paper describes a comprehensive effort to develop studies regarding Brazil's Unified Healthcare System (SUS), as a result of the combination of public services in a network that follows a region-based rationale (tripartite organization). The SUS emerges from such an integration and should be organized as such. The intention is to demonstrate that this type of organization is essential, given that Brazil is organized as a Federation, and all three governmental levels are, in a broad sense, equally responsible for healthcare...
April 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28442990/spatiotemporal-and-long-lasting-modulation-of-11-key-nogo-signaling-genes-in-response-to-strong-neuroexcitation
#11
Tobias E Karlsson, Katrin Wellfelt, Lars Olson
Inhibition of nerve growth and plasticity in the CNS is to a large part mediated by Nogo-like signaling, now encompassing a plethora of ligands, receptors, co-receptors and modulators. Here we describe the distribution and levels of mRNA encoding 11 key genes involved in Nogo-like signaling (Nogo-A, Oligodendrocyte-Myelin glycoprotein (OMgp), Nogo receptor 1 (NgR1), NgR2, NgR3, Lingo-1, TNF receptor orphan Y (Troy), Olfactomedin, Lateral olfactory tract usher substance (Lotus) and membrane-type matrix metalloproteinase-3 (MT3-MPP)), as well as BDNF and GAPDH...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28442752/zika-virus-infection-reprograms-global-transcription-of-host-cells-to-allow-sustained-infection
#12
Shashi Kant Tiwari, Jason Dang, Yue Qin, Gianluigi Lichinchi, Vikas Bansal, Tariq M Rana
Zika virus (ZIKV) is an emerging virus causally linked to neurological disorders, including congenital microcephaly and Guillain-Barré syndrome. There are currently no targeted therapies for ZIKV infection. To identify novel antiviral targets and to elucidate the mechanisms by which ZIKV exploits the host cell machinery to support sustained replication, we analyzed the transcriptomic landscape of human microglia, fibroblast, embryonic kidney and monocyte-derived macrophage cell lines before and after ZIKV infection...
April 26, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28441779/glyoxalase-goes-green-the-expanding-roles-of-glyoxalase-in-plants
#13
REVIEW
Subramanian Sankaranarayanan, Muhammad Jamshed, Abhinandan Kumar, Logan Skori, Sabine Scandola, Tina Wang, David Spiegel, Marcus A Samuel
The ubiquitous glyoxalase enzymatic pathway is involved in the detoxification of methylglyoxal (MG), a cytotoxic byproduct of glycolysis. The glyoxalase system has been more extensively studied in animals versus plants. Plant glyoxalases have been primarily associated with stress responses and their overexpression is known to impart tolerance to various abiotic stresses. In plants, glyoxalases exist as multigene families, and new roles for glyoxalases in various developmental and signaling pathways have started to emerge...
April 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28441401/ancient-genes-establish-stress-induced-mutation-as-a-hallmark-of-cancer
#14
Luis Cisneros, Kimberly J Bussey, Adam J Orr, Milica Miočević, Charles H Lineweaver, Paul Davies
Cancer is sometimes depicted as a reversion to single cell behavior in cells adapted to live in a multicellular assembly. If this is the case, one would expect that mutation in cancer disrupts functional mechanisms that suppress cell-level traits detrimental to multicellularity. Such mechanisms should have evolved with or after the emergence of multicellularity. This leads to two related, but distinct hypotheses: 1) Somatic mutations in cancer will occur in genes that are younger than the emergence of multicellularity (1000 million years [MY]); and 2) genes that are frequently mutated in cancer and whose mutations are functionally important for the emergence of the cancer phenotype evolved within the past 1000 million years, and thus would exhibit an age distribution that is skewed to younger genes...
2017: PloS One
https://www.readbyqxmd.com/read/28438969/intracellular-in-vivo-dynamics-of-thalamocortical-synapses-in-visual-cortex
#15
Madineh Sedigh-Sarvestani, Leif Vigeland, Ivan Fernandez-Lamo, Morgan Taylor, Larry A Palmer, Diego Contreras
Seminal studies of the thalamocortical (TC) circuit in the visual system of the cat have been central to our understanding of sensory encoding. However, TC synaptic properties remain poorly understood. We used paired recordings, in the lateral geniculate nucleus (LGN) and primary visual cortex (V1), to provide the first in vivo characterization of sensory-driven TC potentials in V1. The amplitudes of EPSPs we characterized were smaller than those previously reported in vitro. Consistent with prior findings, connected LGN-V1 pairs were only found when their receptive fields (RFs) overlapped, and the probability of connection increased steeply with degree of RF overlap and response similarity...
April 24, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28438674/current-state-and-challenges-in-developing-oral-vaccines
#16
REVIEW
Julia E Vela Ramirez, Lindsey A Sharpe, Nicholas A Peppas
While vaccination remains the most cost effective strategy for disease prevention, communicable diseases persist as the second leading cause of death worldwide. There is a need to design safe, novel vaccine delivery methods to protect against unaddressed and emerging diseases. Development of vaccines administered orally is preferable to traditional injection-based formulations for numerous reasons including improved safety and compliance, and easier manufacturing and administration. Additionally, the oral route enables stimulation of humoral and cellular immune responses at both systemic and mucosal sites to establish broader and long-lasting protection...
April 21, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28437172/analyzing-locomotor-activity-in-zebrafish-larvae-using-wrmtrck
#17
Velanganni Selvaraj, Kirankumar Santhakumar
The zebrafish has emerged as a new model system in behavioral neurobiology research. There are numerous assays available to analyze locomotor behavior, but most of these assays require sophisticated equipment and proprietary software. A freely available plugin, wrMTrck, originally developed to analyze locomotor response in Caenorhabditis elegans, has been used in this study to measure locomotion in zebrafish.
February 16, 2017: Zebrafish
https://www.readbyqxmd.com/read/28436934/biopolymers-codelivering-engineered-t-cells-and-sting-agonists-can-eliminate-heterogeneous-tumors
#18
Tyrel T Smith, Howell F Moffett, Sirkka B Stephan, Cary F Opel, Amy G Dumigan, Xiuyun Jiang, Venu G Pillarisetty, Smitha P S Pillai, K Dane Wittrup, Matthias T Stephan
Therapies using T cells that are programmed to express chimeric antigen receptors (CAR T cells) consistently produce positive results in patients with hematologic malignancies. However, CAR T cell treatments are less effective in solid tumors for several reasons. First, lymphocytes do not efficiently target CAR T cells; second, solid tumors create an immunosuppressive microenvironment that inactivates T cell responses; and third, solid cancers are typified by phenotypic diversity and thus include cells that do not express proteins targeted by the engineered receptors, enabling the formation of escape variants that elude CAR T cell targeting...
April 24, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28435506/audience-response-system-facilitates-prediction-of-scores-on-in-training-examination
#19
Kaushal H Shah, Jaime Jordan, Katherine Jahnes, David P Lisbon, Lucienne Lutfy-Clayton, Grant Wei, Gary Winkel, Sally A Santen
INTRODUCTION: Audience response systems (ARS) are increasingly popular; however, their contribution to education is not completely clear. Our study found that scores from review quizzes delivered by an ARS correlate with in-training exam (ITE) scores and are viewed positively by residents. This information may be useful in identifying poor performers early so that targeted educational interventions can be made. The objective was to determine if scores on review quizzes delivered by an ARS correlate with ITE scores and to obtain participant feedback on use of the ARS for ITE preparation...
April 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28435498/security-violent-events-and-anticipated-surge-capabilities-of-emergency-departments-in-washington-state
#20
Jonathan S Weyand, Emily Junck, Christopher S Kang, Jason D Heiner
INTRODUCTION: Over the past 15 years, violent threats and acts against hospital patients, staff, and providers have increased and escalated. The leading area for violence is the emergency department (ED) given its 24/7 operations, role in patient care, admissions gateway, and center for influxes during acute surge events. This investigation had three objectives: to assess the current security of Washington State EDs; to estimate the prevalence of and response to threats and violence in Washington State EDs; and to appraise the Washington State ED security capability to respond to acute influxes of patients, bystanders, and media during acute surge events...
April 2017: Western Journal of Emergency Medicine
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