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https://www.readbyqxmd.com/read/28442413/cytoprotective-action-against-oxidative-stress-in-astrocytes-and-neurons-by-bactris-guineensis-l-h-e-moore-corozo-fruit-extracts
#1
Sergio López, Mitchell Martá, Luis Gonzalo Sequeda, Crispin Celis, Jhon Jairo Sutachan, Sonia Luz Albarracín
Neurodegenerative conditions such as Alzheimer's disease, Parkinson's disease and amyotrophic lateral sclerosis are characterized by having a significant increase in oxidative stress that can lead to the cellular damage of both neurons and astrocytes. Therefore, the search for molecules that can modulate oxidative stress in these diseases has recently gain interest, especially for those non-traditional antioxidants that can be gained from diet. In the present work, pulp and seed extracts from the fruit of the palm, Bactris guineensis were obtained by hydro-alcoholic solution and by a solid-liquid phase using solvents with different polarities and evaluated for their capacity to protect both neurons and astrocytes against rotenone-induced oxidative stress...
April 22, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28438930/in-vitro-assessment-of-combined-polymyxin-b-and-minocycline-therapy-against-klebsiella-pneumoniae-carbapenemase-kpc-producing-k-pneumoniae
#2
Dennis Huang, Brenda Yu, John K Diep, Rajnikant Sharma, Michael Dudley, Keith S Kaye, Jason M Pogue, Cely Abboud Saad, Gauri Rao
The multi-drug resistance profiles of Klebsiella pneumoniae carbapenemase (KPC) producers have increased clinical polymyxin use. Combination therapy with polymyxins may improve treatment outcomes, but it is uncertain which combinations are most effective. Clinical successes have been reported with intravenous minocycline-based combination treatments for infections caused by carbapenemase-producing bacteria. The objective of this study was to evaluate the in vitro activity of polymyxin B and minocycline combination therapy against six KPC-2-producing K...
April 24, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28434667/sedimentary-heavy-metal-loid-contamination-in-the-veracruz-shelf-gulf-of-mexico-a-baseline-survey-from-a-rapidly-developing-tropical-coast
#3
Celis-Hernandez Omar, Rosales-Hoz Leticia, Cundy Andrew B, Carranza-Edwards Arturo
This study examines sediment texture, geochemistry and sediment accumulation in cores from four sites in the Veracruz shelf area of the Gulf of Mexico, to assess the inputs of heavy metal(loid)s (and their potential biological impacts) in this carbonate-dominated shelf system, and to examine the rate of sedimentation near to the mouths of the La Antigua and Jamapa Rivers. The use of different pollution indices showed enrichment with Pb in all cores studied, although based on sediment quality guidelines As was the only element that has potential to occasionally cause damage to the benthic organisms present in the area...
April 20, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28428879/a-systems-biology-approach-to-investigating-the-influence-of-exercise-and-fitness-on-the-composition-of-leukocytes-in-peripheral-blood
#4
Michael P Gustafson, Ara Celi DiCostanzo, Courtney M Wheatley, Chul-Ho Kim, Svetlana Bornschlegl, Dennis A Gastineau, Bruce D Johnson, Allan B Dietz
BACKGROUND: Exercise immunology has become a growing field in the past 20 years, with an emphasis on understanding how different forms of exercise affect immune function. Mechanistic studies are beginning to shed light on how exercise may impair the development of cancer or be used to augment cancer treatment. The beneficial effects of exercise on the immune system may be exploited to improve patient responses to cancer immunotherapy. METHODS: We investigated the effects of acute exercise on the composition of peripheral blood leukocytes over time in a male population of varying fitness...
2017: Journal for Immunotherapy of Cancer
https://www.readbyqxmd.com/read/28424154/association-between-active-commuting-and-incident-cardiovascular-disease-cancer-and-mortality-prospective-cohort-study
#5
Carlos A Celis-Morales, Donald M Lyall, Paul Welsh, Jana Anderson, Lewis Steell, Yibing Guo, Reno Maldonado, Daniel F Mackay, Jill P Pell, Naveed Sattar, Jason M R Gill
Objective To investigate the association between active commuting and incident cardiovascular disease (CVD), cancer, and all cause mortality.Design Prospective population based study. Setting UK Biobank.Participants 263 450 participants (106 674 (52%) women; mean age 52.6), recruited from 22 sites across the UK. The exposure variable was the mode of transport used (walking, cycling, mixed mode v non-active (car or public transport)) to commute to and from work on a typical day.Main outcome measures Incident (fatal and non-fatal) CVD and cancer, and deaths from CVD, cancer, or any causes...
April 19, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28421800/prevalencia-y-factores-asociados-al-consumo-de-bebidas-azucaradas-en-escolares-de-9-a-17-a%C3%A3-os-de-bogot%C3%A3-colombia-estudio-fuprecol
#6
Robinson Ramírez-Vélez, Juan Camilo Fuerte-Celis, Javier Martínez-Torres, Jorge Enrique Correa-Bautista
Objetivo: determinar la prevalencia y los factores asociados al consumo de bebidas azucaradas en una población escolar de Bogotá, Colombia, pertenecientes al Estudio FUPRECOL.Métodos: estudio descriptivo y transversal, realizado en 8.136 niños y adolescentes en edad escolar entre 9 y 17 años de Bogotá, Colombia. El peso, la estatura, el índice de masa corporal (IMC), la circunferencia de cintura y el porcentaje de grasa se recogieron como marcadores antropométricos y de composición corporal. El consumo de bebidas azucaradas (bebidas carbonatadas, jugos ultra-procesados y/o té), y los factores asociados (sexo, edad, obesidad abdominal, clasificación del IMC, grado de estudios de la madre/padre, y nivel nutricional por cuestionario "Krece plus" indicador de adherencia a la dieta mediterránea), se recogieron por encuesta estructurada...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28415278/nonergodic-subdiffusion-from-transient-interactions-with-heterogeneous-partners
#7
C Charalambous, G Muñoz-Gil, A Celi, M F Garcia-Parajo, M Lewenstein, C Manzo, M A García-March
Spatiotemporal disorder has been recently associated to the occurrence of anomalous nonergodic diffusion of molecular components in biological systems, but the underlying microscopic mechanism is still unclear. We introduce a model in which a particle performs continuous Brownian motion with changes of diffusion coefficients induced by transient molecular interactions with diffusive binding partners. In spite of the exponential distribution of waiting times, the model shows subdiffusion and nonergodicity similar to the heavy-tailed continuous time random walk...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28410309/will-artificial-intelligence-contribute-to-overuse-in-healthcare
#8
Matthieu Komorowski, Leo Anthony Celi
No abstract text is available yet for this article.
May 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28395181/selective-dysfunction-of-subsets-of-peripheral-blood-mononuclear-cells-during-pediatric-dengue-and-its-relationship-with-clinical-outcome
#9
Federico Perdomo-Celis, Doris M Salgado, Carlos F Narváez
During dengue virus (DENV) infection, a blockage of secretion of cytokines such as tumor necrosis factor (TNF)-α and members of the interferon (IFN) family has been described in vitro. We evaluated the functionality of monocytes as well as dendritic, B and T cells isolated from children with mild and severe dengue. Compared with those of healthy children, stimulated monocytes, CD4(+) T cells and dendritic cells from children with dengue had lower production of proinflammatory cytokines. The interferon axis was dramatically modulated by infection as plasmacytoid dendritic cells (pDCs) and CD4(+) T cells had low production of IFN-α and IFN-γ, respectively; plasma levels of IFN-α and IFN-γ were lower in severely ill children, suggesting a protective role...
April 7, 2017: Virology
https://www.readbyqxmd.com/read/28394956/-being-physically-active-modifies-the-detrimental-effect-of-sedentary-behavior-on-obesity-and-cardiometabolic-markers-in-adults
#10
Carlos Salas, Carlos Cristi-Montero, Yu Fan, Eliana Durán, Ana María Labraña, María Adela Martínez, Ana María Leiva, Cristian Alvarez, Nicolás Aguilar-Farías, Rodrigo Ramírez-Campillo, Ximena Díaz Martínez, Ruth Sanzana-Inzunza, Carlos Celis-Morales
BACKGROUND: Sedentary behavior is a major risk factor for cardiovascular disease and mortality. AIM: To investigate whether the associations between sedentary behavior and cardiometabolic markers differs across physical activity levels. MATERIALS AND METHODS: Cross sectional study of 314 participants aged 18 to 65 years. Body mass index (BMI) and waist circumference were measured, and body fat was derived from the sum of four skinfolds. Physical activity was measured objectively using accelerometers (Actigraph GT1M, USA®)...
November 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28391070/can-haemonchus-placei-primary-infected-na%C3%A3-ve-lambs-withstand-haemonchus-contortus-infections
#11
Regina Celis Pereira Reiniger, Luciana Laitano Dias de Castro, Magda Vieira Benavides, Maria Elisabeth Aires Berne
An experiment was conducted with the objective of evaluating whether a 5000 L3 larvae Haemonchus placei primary infection, a less pathogenic parasite species for sheep, could attenuate highly pathogenic Haemonchus contortus infections in lambs. Thirty nine 6-month-old lambs were divided in three primary-infection groups: (HcPI) H. contortus-primary infected lambs, (HpPI) H. placei-primary infected lambs, and (CTRL) non-infected control lambs. Later, these same individuals, then aged 10-month old, were cross challenged with Haemonchus parasite species, creating four groups: HcPI challenged with H...
February 28, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28385107/association-of-household-income-level-and-in-hospital-mortality-in-patients-with-sepsis-a-nationwide-retrospective-cohort-analysis
#12
Barret Rush, Katie Wiskar, Leo Anthony Celi, Keith R Walley, James A Russell, Robert C McDermid, John H Boyd
OBJECTIVE: Associations between low socioeconomic status (SES) and poor health outcomes have been demonstrated in a variety of conditions. However, the relationship in patients with sepsis is not well described. We investigated the association of lower household income with in-hospital mortality in patients with sepsis across the United States. METHODS: Retrospective nationwide cohort analysis utilizing the Nationwide Inpatient Sample (NIS) from 2011. Patients aged 18 years or older with sepsis were included...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28381478/can-genetic-based-advice-help-you-lose-weight-findings-from-the-food4me-european-randomized-controlled-trial
#13
Carlos Celis-Morales, Cyril Fm Marsaux, Katherine M Livingstone, Santiago Navas-Carretero, Rodrigo San-Cristobal, Rosalind Fallaize, Anna L Macready, Clare O'Donovan, Clara Woolhead, Hannah Forster, Silvia Kolossa, Hannelore Daniel, George Moschonis, Christina Mavrogianni, Yannis Manios, Agnieszka Surwillo, Iwona Traczyk, Christian A Drevon, Keith Grimaldi, Jildau Bouwman, Mike J Gibney, Marianne C Walsh, Eileen R Gibney, Lorraine Brennan, Julie A Lovegrove, J Alfredo Martinez, Wim Hm Saris, John C Mathers
Background: There has been limited evidence about whether genotype-tailored advice provides extra benefits in reducing obesity-related traits compared with the benefits of conventional one-size-fits-all advice.Objective: We determined whether the disclosure of information on fat-mass and obesity-associated (FTO) genotype risk had a greater effect on a reduction of obesity-related traits in risk carriers than in nonrisk carriers across different levels of personalized nutrition.Design: A total of 683 participants (women: 51%; age range: 18-73 y) from the Food4Me randomized controlled trial were included in this analysis...
April 5, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28363219/associations-between-single-and-multiple-cardiometabolic-diseases-and-cognitive-abilities-in-474-129-uk-biobank-participants
#14
Donald M Lyall, Carlos A Celis-Morales, Jana Anderson, Jason M R Gill, Daniel F Mackay, Andrew M McIntosh, Daniel J Smith, Ian J Deary, Naveed Sattar, Jill P Pell
Aims: Cardiometabolic diseases (hypertension, coronary artery disease [CAD] and diabetes are known to associate with poorer cognitive ability but there are limited data on whether having more than one of these conditions is associated with additive effects. We aimed to quantify the magnitude of their associations with non-demented cognitive abilities and determine the extent to which these associations were additive. Methods and results: We examined cognitive test scores in domains of reasoning, information processing speed and memory, included as part of the baseline UK Biobank cohort assessment (N = 474 129 with relevant data), adjusting for a range of potentially confounding variables...
February 21, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28360193/a-role-for-galectin-3-in-the-development-of-early-molecular-alterations-in-short-term-aortic-stenosis
#15
Vanessa Arrieta, Ernesto Martínez-Martínez, Jaime Ibarrola, Virginia Alvarez, Rafael Justo Sádaba, Amaia García-Peña, Amaya Fernández-Celis, Victoria Cachofeiro, Patrick Rossignol, Natalia Lopez-Andres
Aortic stenosis (AS) is characterized by pressure overload and causes left ventricular (LV) fibrosis and inflammation, two mechanisms which finally lead to cardiac dysfunction. Galectin-3 (Gal-3), a β-galactoside-binding lectin, promotes cardiac remodeling. We herein investigated the role of Gal-3 in LV remodeling in patients with AS and the effects of Gal-3 blockade in rats subjected to short-term (6-week) supravalvular aortic banding (AS group). Myocardial biopsies were obtained from 25 patients with severe AS referred for aortic valve replacement and from necropsies of 11 cardiovascular disease-free control subjects...
March 30, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28353150/gene-methylation-parallelisms-between-peripheral-blood-cells-and-oral-mucosa-samples-in-relation-to-overweight
#16
Rodrigo San-Cristobal, Santiago Navas-Carretero, Fermín I Milagro, J Ignacio Riezu-Boj, Elizabeth Guruceaga, Carlos Celis-Morales, Katherine M Livingstone, Lorraine Brennan, Julie A Lovegrove, Hannelore Daniel, Wim H Saris, Iwonna Traczyk, Yannis Manios, Eileen R Gibney, Michael J Gibney, John C Mathers, J Alfredo Martinez
Epigenetics has an important role in the regulation of metabolic adaptation to environmental modifications. In this sense, the determination of epigenetic changes in non-invasive samples during the development of metabolic diseases could play an important role in the procedures in primary healthcare practice. To help translate the knowledge of epigenetics to public health practice, the present study aims to explore the parallelism of methylation levels between white blood cells and buccal samples in relation to obesity and associated disorders...
March 28, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28349165/programmed-death-ligand-1-and-its-soluble-form-are-highly-expressed-in-nasal-natural-killer-t-cell-lymphoma-a-potential-rationale-for-immunotherapy
#17
Toshihiro Nagato, Takayuki Ohkuri, Kenzo Ohara, Yui Hirata, Kan Kishibe, Yuki Komabayashi, Seigo Ueda, Miki Takahara, Takumi Kumai, Kei Ishibashi, Akemi Kosaka, Naoko Aoki, Kensuke Oikawa, Yuji Uno, Naoko Akiyama, Masatoshi Sado, Hidehiro Takei, Esteban Celis, Yasuaki Harabuchi, Hiroya Kobayashi
Nasal natural killer/T-cell lymphoma (NNKTL) is an aggressive neoplasm with poor therapeutic responses and prognosis. The programmed death-1/programmed death-ligand 1 (PD-1/PD-L1) pathway plays an important role in immune evasion of tumor cells through T-cell exhaustion. The aim of the present study was to examine the expression of PD-L1 and PD-1 molecules in NNKTL. We detected the expression of PD-L1 in biopsy samples from all of the NNKTL patients studied. PD-L1 was found on both malignant cells and tumor-infiltrating macrophages, while PD-1-positive mononuclear cells infiltrated the tumor tissues in 36% of patients...
March 27, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28347943/the-association-between-sodium-fluctuations-and-mortality-in-surgical-patients-requiring-intensive-care
#18
Dominic C Marshall, Justin D Salciccioli, Ross J Goodson, Marco A Pimentel, Kristi Y Sun, Leo Anthony Celi, Joseph Shalhoub
PURPOSE: Serum sodium derangement is the most common electrolyte disturbance among patients admitted to intensive care. This study aims to validate the association between dysnatremia and serum sodium fluctuation with mortality in surgical intensive care patients. METHOD: We performed a retrospective analysis of the Medical Information Mart for Intensive Care II database. Dysnatremia was defined as a sodium concentration outside physiologic range (135-145mmol/L) and subjects were categorized by severity of dysnatremia and sodium fluctuation...
February 13, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28345926/band-gap-opening-induced-by-the-structural-periodicity-in-epitaxial-graphene-buffer-layer
#19
Maya N Nair, Irene Palacio, Arlensiú Celis, Alberto Zobelli, Alexandre Gloter, Stefan Kubsky, Jean-Philippe Turmaud, Matthew Conrad, Claire Berger, Walter de Heer, Edward H Conrad, Amina Taleb-Ibrahimi, Antonio Tejeda
The epitaxial graphene buffer layer on the Si face of hexagonal SiC shows a promising band gap, of which the precise origin remains to be understood. In this work, we correlate the electronic to the atomic structure of the buffer layer by combining angle resolved photoemission spectroscopy (ARPES), scanning tunneling microscopy (STM), and high-resolution scanning transmission electron microscopy (HR-STEM). We show that the band structure in the buffer has an electronic periodicity related to the structural periodicity observed in STM images and published X-ray diffraction...
March 30, 2017: Nano Letters
https://www.readbyqxmd.com/read/28338245/infective-capacity-of-cryptococcus-neoformans-and-cryptococcus-gattii-in-a-human-astrocytoma-cell-line
#20
M C Olave, J C Vargas-Zambrano, A M Celis, E Castañeda, J M González
Pathogenesis of cryptococcosis in the central nervous system (CNS) is a topic of ongoing research, including the mechanisms by which this fungus invades and infects the brain. Astrocytes, the most common CNS cells, play a fundamental role in the local immune response. Astrocytes might participate in cryptococcosis either as a host or by responding to fungal antigens. To determine the infectivity of Cryptococcus neoformans var. grubii and Cryptococcus gattii in a human astrocytoma cell line and the induction of major histocompatibility complex (MHC) molecules...
March 24, 2017: Mycoses
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