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https://www.readbyqxmd.com/read/27895780/curcumin-potentiates-the-effect-of-chemotherapy-against-acute-lymphoblastic-leukemia-cells-via-downregulation-of-nf-%C3%AE%C2%BAb
#1
Helia Judith Pimentel-Gutiérrez, Lucina Bobadilla-Morales, César Cenobio Barba-Barba, Citlalli Ortega-De-La-Torre, Fernando Antonio Sánchez-Zubieta, Jorge Román Corona-Rivera, Betsy Annel González-Quezada, Juan S Armendáriz-Borunda, Rocío Silva-Cruz, Alfredo Corona-Rivera
Acute lymphoblastic leukemia (ALL) accounts for 30% of all pediatric cancers. Currently available treatments exhibit toxicity and certain patients may develop resistance. Thus, less toxic and chemoresistance-reversal agents are required. In the present study, the potential effect of curcumin, a component of Curcuma longa, as a pharmacological co-adjuvant of several chemotherapeutic agents against ALL, including prednisone, 6-mercaptopurine, dexamethasone, cyclophosphamide, l-asparaginase, vincristine, daunorubicin, doxorubicin, methotrexate and cytarabine, was investigated in the REH ALL cell line cultures treated in combination with chemotherapeutic agents and curcumin...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27856269/efficacy-and-safety-of-withholding-antimicrobial-treatment-in-children-with-cancer-fever-and-neutropenia-with-a-demonstrated-viral-respiratory-infection-a-randomized-clinical-trial
#2
María E Santolaya, Ana M Alvarez, Mirta Acuña, Carmen L Avilés, Carmen Salgado, Juan Tordecilla, Mónica Varas, Marcela Venegas, Milena Villarroel, Marcela Zubieta, Alberto Toso, Alexander Bataszew, Mauricio J Farfán, Verónica de la Maza, Alejandra Vergara, Romina Valenzuela, Juan P Torres
OBJECTIVES: To determine efficacy and safety of withholding antimicrobials in children with cancer, fever and neutropenia (FN) with a demonstrated respiratory viral infection. METHODS: Prospective, multicenter, randomized study in children presenting with FN at five hospitals in Santiago, Chile, evaluated at admission for diagnosis of bacterial and viral pathogens including PCR-microarray for 17 respiratory viruses. Children positive for a respiratory virus, negative for a bacterial pathogen and with a favorable evolution after 48 hours of antimicrobial therapy were randomized to either maintain or withhold antimicrobials...
November 14, 2016: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/27855992/-initial-experience-in-robot-assisted-colorectal-surgery-in-mexico
#3
Eduardo Villanueva-Sáenz, Moisés Marino Ramírez-Ramírez, Gregorio Zubieta-O'Farrill, Luis García-Hernández
BACKGROUND: Colorectal surgery has advanced notably since the introduction of the mechanical suture and the minimally invasive approach. Robotic surgery began in order to satisfy the needs of the patient-doctor relationship, and migrating to the area of colorectal surgery. An initial report is presented on the experience of managing colorectal disease using robot-assisted surgery, as well as an analysis of MATERIAL AND METHODS: A retrospective study was conducted in order to review five patients with colorectal disease intervened with a robot-assisted technique during one year in the initial phase of the learning curve...
November 14, 2016: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/27849615/arabidopsis-thaliana-gh3-5-acyl-acid-amido-synthetase-mediates-metabolic-crosstalk-in-auxin-and-salicylic-acid-homeostasis
#4
Corey S Westfall, Ashley M Sherp, Chloe Zubieta, Sophie Alvarez, Evelyn Schraft, Romain Marcellin, Loren Ramirez, Joseph M Jez
In Arabidopsis thaliana, the acyl acid amido synthetase Gretchen Hagen 3.5 (AtGH3.5) conjugates both indole-3-acetic acid (IAA) and salicylic acid (SA) to modulate auxin and pathogen response pathways. To understand the molecular basis for the activity of AtGH3.5, we determined the X-ray crystal structure of the enzyme in complex with IAA and AMP. Biochemical analysis demonstrates that the substrate preference of AtGH3.5 is wider than originally described and includes the natural auxin phenylacetic acid (PAA) and the potential SA precursor benzoic acid (BA)...
November 29, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27802282/correction-calculation-of-the-average-cost-per-case-of-dengue-fever-in-mexico-using-a-micro-costing-approach
#5
Adriana Zubieta-Zavala, Guillermo Salinas-Escudero, Adrian Ramírez-Chávez, Luis García-Valladares, Malaquias López-Cervantes, Juan Guillermo López Yescas, Luis Durán-Arenas
[This corrects the article DOI: 10.1371/journal.pntd.0004897.].
November 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27768812/preparation-of-an-18-f-labeled-hydrocyanine-dye-as-a-multimodal-probe-for-reactive-oxygen-species
#6
Salma Al-Karmi, Silvia A Albu, Alyssa Vito, Nancy Janzen, Shannon Czorny, Laura Banevicius, Max Nanao, Jon Zubieta, Alfredo Capretta, John F Valliant
Hydrocyanine dyes are sensitive "turn-on" type optical probes that can detect reactive oxygen species (ROS). We have developed a method to prepare an (18) F-labeled hydrocyanine dye as a multi-modal PET and optical "turn-on" probe. A commercially available near infrared (NIR) dye was modified with a fluorinated prosthetic group that did not alter its ROS sensing properties in the presence of superoxide and hydroxyl radicals. The (18) F-labeled analogue was produced using a single-step terminal fluorination procedure...
October 21, 2016: Chemistry: a European Journal
https://www.readbyqxmd.com/read/27689471/letter-to-the-editor-re-bicarbonate-values-for-healthy-residents-living-in-cities-above-1500-meters-of-altitude-a-theoretical-model-and-systematic-review-by-ramirez-sandoval-et-al-high-alt-med-biol-2016-17-85-92
#7
Gustavo Zubieta-Calleja, Natalia Zubieta-DeUrioste, Poul-Erik Paulev
No abstract text is available yet for this article.
September 2016: High Altitude Medicine & Biology
https://www.readbyqxmd.com/read/27622993/metabolic-and-hormone-influences-on-emotion-processing-during-menopause
#8
Alison Berent-Spillson, Courtney Marsh, Carol Persad, John Randolph, Jon-Kar Zubieta, Yolanda Smith
Disturbances of emotion regulation and depressive symptoms are common during the menopause transition. Reproductive hormone levels are not directly correlated with depressive symptoms, and other factors may influence mood symptoms during menopause. In this study, we sought to determine the role of metabolic function in mood symptoms during menopause, hypothesizing an association with menopause status and long-term glucose load. We studied 54 women across three menopause transition stages (15 premenopause, 11 perimenopause, and 28 postmenopause), examining effects of age, hormones, and metabolism on mood and neural activation during emotional discrimination...
September 5, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27614896/oxytocin-modulates-hemodynamic-responses-to-monetary-incentives-in-humans
#9
Brian J Mickey, Joseph Heffernan, Curtis Heisel, Marta Peciña, David T Hsu, Jon-Kar Zubieta, Tiffany M Love
RATIONALE: Oxytocin is a neuropeptide widely recognized for its role in regulating social and reproductive behavior. Increasing evidence from animal models suggests that oxytocin also modulates reward circuitry in non-social contexts, but evidence in humans is lacking. OBJECTIVES: We examined the effects of oxytocin administration on reward circuit function in 18 healthy men as they performed a monetary incentive task. METHODS: The blood oxygenation level-dependent (BOLD) signal was measured using functional magnetic resonance imaging in the context of a randomized, double-blind, placebo-controlled, crossover trial of intranasal oxytocin...
December 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27599735/merging-of-synchrotron-serial-crystallographic-data-by-a-genetic-algorithm
#10
Ulrich Zander, Michele Cianci, Nicolas Foos, Catarina S Silva, Luca Mazzei, Chloe Zubieta, Alejandro de Maria, Max H Nanao
Recent advances in macromolecular crystallography have made it practical to rapidly collect hundreds of sub-data sets consisting of small oscillations of incomplete data. This approach, generally referred to as serial crystallography, has many uses, including an increased effective dose per data set, the collection of data from crystals without harvesting (in situ data collection) and studies of dynamic events such as catalytic reactions. However, selecting which data sets from this type of experiment should be merged can be challenging and new methods are required...
September 2016: Acta Crystallographica. Section D, Structural Biology
https://www.readbyqxmd.com/read/27565008/trends-in-gout-and-rheumatoid-arthritis-hospitalizations-in-canada-from-2000-2011
#11
Sharan K Rai, J Antonio Aviña-Zubieta, Natalie McCormick, Mary A De Vera, Diane Lacaille, Eric C Sayre, Hyon K Choi
OBJECTIVE: Gout and rheumatoid arthritis (RA) are the two most common forms of inflammatory arthritis worldwide. As hospitalizations for both conditions lead to substantial health resource use, contemporary inpatient trends and associated costs may provide important benchmarks of disease burden. However, relevant data are limited. METHODS: We used PopulationData BC, a population-based administrative dataset from Canada. We examined trends in the annual hospitalization and surgery rate of gout and RA from 2000-2011...
August 26, 2016: Arthritis Care & Research
https://www.readbyqxmd.com/read/27561024/-association-of-inflammatory-cytokines-with-bone-turnover-markers-in-type-1-diabetes
#12
Mario Molina-Ayala, Ruth Carmina Cruz-Soto, Guadalupe Vargas-Ortega, Baldomero González-Virla, Aldo Ferreira-Hermosillo, Julián Mac Gregor-Gooch, Victoria Mendoza-Zubieta
BACKGROUND: Diabetes mellitus (DM) adversely affects the skeleton and the physiological mechanisms implicated have not been explained sufficiently. Thus, the objective was to identify inflammatory cytokines (IL-1, IL-6 and TNF-alpha) in patients with T1DM and their association with markers of bone formation (sPINP) and markers of bone resorption (sCTX). METHODS: We studied 62 patients of 18 years of age or more with T1DM. We determined the values of HbA1c, vitamin D, inflammatory cytokines, as well as those of markers of bone formation and of markers of bone resorption...
2016: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/27561014/-clinical-and-biochemical-characteristics-of-patients-with-morbid-obesity-at-the-time-of-hospital-admission-and-one-year-after-undergoing-bariatric-surgery
#13
Mario Molina-Ayala, Arturo Rodríguez-González, Alejandra Albarrán-Sánchez, Aldo Ferreira-Hermosillo, Claudia Ramírez-Rentería, Enrique Luque-de León, Ilka Bosco-Garate, Fernando Laredo-Sánchez, Roxana Contreras-Herrera, Julián Mac Gregor-Gooch, Carlos Cuevas-García, Victoria Mendoza-Zubieta
BACKGROUND: Three percent of Mexicans suffer from morbid obesity. Comorbidities associated to this condition diminish quality of life, increase mortality and health care costs. Despite bariatric surgery has specific indications and risks, it is the only treatment with effective long-term results. The aim of the study was to evaluate biochemical and clinical patient characteristics, both preoperatively and a year after they underwent bariatric surgery. METHODS: We carried out a quasi-experimental study that evaluates a sample of patients in the Clínica de Obesidad at Hospital de Especialidades (a third level hospital) between March 2011 and October 2015...
2016: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/27525132/persistent-primary-hyperparathyroidism-severe-vitamin-d-deficiency-and-multiple-pathological-fractures
#14
Victoria Mendoza-Zubieta, Mauricio Carvallo-Venegas, Jorge Alberto Vargas-Castilla, Nicolás Ducoing-Sisto, Alfredo Alejandro Páramo-Lovera, Lourdes Josefina Balcázar-Hernández, Julián Malcolm Mac Gregor-Gooch
Persistent primary hyperparathyroidism (PHPT) refers to the sustained hypercalcemia state detected within the first six months following parathyroidectomy. When it coexists with severe vitamin D deficiency, the effects on bone can be devastating. We report the case of a 56-year-old woman who was sent to this center because of persistent hyperparathyroidism. Her disease had over 3 years of evolution with nephrolithiasis and hip fracture. Parathyroidectomy was performed in her local unit; however, she continued with hypercalcemia, bone pain, and pathological fractures...
2016: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/27508003/mapping-n-linked-glycosylation-of-carbohydrate-active-enzymes-in-the-secretome-of-aspergillus-nidulans-grown-on-lignocellulose
#15
Marcelo Ventura Rubio, Mariane Paludetti Zubieta, João Paulo Lourenço Franco Cairo, Felipe Calzado, Adriana Franco Paes Leme, Fabio Marcio Squina, Rolf Alexander Prade, André Ricardo de Lima Damásio
BACKGROUND: The genus Aspergillus includes microorganisms that naturally degrade lignocellulosic biomass, secreting large amounts of carbohydrate-active enzymes (CAZymes) that characterize their saprophyte lifestyle. Aspergillus has the capacity to perform post-translational modifications (PTM), which provides an additional advantage for the use of these organisms as a host for the production of heterologous proteins. In this study, the N-linked glycosylation of CAZymes identified in the secretome of Aspergillus nidulans grown on lignocellulose was mapped...
2016: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/27501146/calculation-of-the-average-cost-per-case-of-dengue-fever-in-mexico-using-a-micro-costing-approach
#16
Adriana Zubieta-Zavala, Guillermo Salinas-Escudero, Adrian Ramírez-Chávez, Luis García-Valladares, Malaquias López-Cervantes, Juan Guillermo López Yescas, Luis Durán-Arenas
INTRODUCTION: The increasing burden of dengue fever (DF) in the Americas, and the current epidemic in previously unaffected countries, generate major costs for national healthcare systems. There is a need to quantify the average cost per DF case. In Mexico, few data are available on costs, despite DF being endemic in some areas. Extrapolations from studies in other countries may prove unreliable and are complicated by the two main Mexican healthcare systems (the Secretariat of Health [SS] and the Mexican Social Security Institute [IMSS])...
August 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/27474908/acute-cortisol-reactivity-attenuates-engagement-of-fronto-parietal-and-striatal-regions-during-emotion-processing-in-negative-mood-disorders
#17
Amy T Peters, Anna Van Meter, Patrick J Pruitt, Emily M Briceño, Kelly A Ryan, Melissa Hagan, Anne L Weldon, Michelle T Kassel, Aaron Vederman, Jon-Kar Zubieta, Melvin McInnis, Sara L Weisenbach, Scott A Langenecker
OBJECTIVE: Depression and bipolar disorder (negative mood disorders, NMD) are associated with dysregulated hypothalamic-pituitary-adrenal (HPA)-axis function and disrupted emotion processing. The neural networks involved in attenuation of HPA-axis reactivity overlap with the circuitry involved in perception and modulation of emotion; however, direct links between these systems are understudied. This study investigated whether cortisol activity prior to undergoing fMRI was related to neural processing of emotional information in participants with NMD...
November 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27454009/comorbid-anxiety-increases-cognitive-control-activation-in-major-depressive-disorder
#18
Natania A Crane, Lisanne M Jenkins, Catherine Dion, Kortni K Meyers, Anne L Weldon, Laura B Gabriel, Sara J Walker, David T Hsu, Douglas C Noll, Heide Klumpp, K Luan Phan, Jon-Kar Zubieta, Scott A Langenecker
BACKGROUND: Major Depressive Disorder (MDD) and anxiety disorders often co-occur, with poorer treatment response and long-term outcomes. However, little is known about the shared and distinct neural mechanisms of comorbid MDD and anxiety (MDD+Anx). This study examined how MDD and MDD+Anx differentially impact cognitive control. METHODS: Eighteen MDD, 29 MDD+Anx, and 54 healthy controls (HC) completed the Parametric Go/No-Go (PGNG) during fMRI, including Target, Commission, and Rejection trials...
October 2016: Depression and Anxiety
https://www.readbyqxmd.com/read/27420606/endogenous-opioidergic-dysregulation-of-pain-in-fibromyalgia-a-pet-and-fmri-study
#19
Andrew Schrepf, Daniel E Harper, Steven E Harte, Heng Wang, Eric Ichesco, Johnson P Hampson, Jon-Kar Zubieta, Daniel J Clauw, Richard E Harris
Endogenous opioid system dysfunction potentially contributes to chronic pain in fibromyalgia (FM), but it is unknown if this dysfunction is related to established neurobiological markers of hyperalgesia. We previously reported that µ-opioid receptor (MOR) availability was reduced in patients with FM as compared with healthy controls in several pain-processing brain regions. In the present study, we compared pain-evoked functional magnetic resonance imaging with endogenous MOR binding and clinical pain ratings in female opioid-naive patients with FM (n = 18) using whole-brain analyses and regions of interest from our previous research...
October 2016: Pain
https://www.readbyqxmd.com/read/27346079/constance-e-lieber-theodore-r-stanley-and-the-enduring-impact-of-philanthropy-on-psychiatry-research
#20
John H Krystal, Anissa Abi-Dargham, Schahram Akbarian, Amy F T Arnsten, Deanna M Barch, Carrie E Bearden, David L Braff, E Sherwood Brown, Edward T Bullmore, William A Carlezon, Cameron S Carter, Edwin H Cook, Zafiris Jeff Daskalakis, Ralph J DiLeone, Ronald S Duman, Anthony A Grace, Ahmad R Hariri, Paul J Harrison, Noboru Hiroi, Paul J Kenny, Joel E Kleinman, Andrew D Krystal, David A Lewis, Barbara K Lipska, Stephen R Marder, Graeme F Mason, Daniel H Mathalon, Colleen A McClung, Christopher J McDougle, Andrew M McIntosh, Francis J McMahon, Károly Mirnics, Lisa M Monteggia, Rajesh Narendran, Eric J Nestler, Alexander Neumeister, Michael C O'Donovan, Dost Öngür, Carmine M Pariante, Martin P Paulus, Godfrey Pearlson, Mary L Phillips, Daniel S Pine, Diego A Pizzagalli, Mikhail V Pletnikov, J Daniel Ragland, Judith L Rapoport, Kerry J Ressler, Scott J Russo, Gerard Sanacora, Akira Sawa, Alan F Schatzberg, Yavin Shaham, Simone G Shamay-Tsoory, Pamela Sklar, Matthew W State, Murray B Stein, Stephen M Strakowski, Stephan F Taylor, Gustavo Turecki, Bruce I Turetsky, Myrna M Weissman, Venetia Zachariou, Carlos A Zarate, Jon-Kar Zubieta
No abstract text is available yet for this article.
July 15, 2016: Biological Psychiatry
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