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https://www.readbyqxmd.com/read/29146018/biological-treatments-in-giant-cell-arteritis-takayasu-arteritis
#1
Maxime Samson, Georgina Espígol-Frigolé, Nekane Terrades-García, Sergio Prieto-González, Marc Corbera-Bellalta, Roser Alba-Rovira, José Hernández-Rodríguez, Sylvain Audia, Bernard Bonnotte, Maria C Cid
Giant cell arteritis (GCA) and Takayasu arteritis (TAK) are the two main large vessel vasculitides. They share some similarities regarding their clinical, radiological and histological presentations but some pathogenic processes in GCA and TAK are activated differently, thus explaining their different sensitivity to biological therapies. The treatment of GCA and TAK essentially relies on glucocorticoids. However, thanks to major progress in our understanding of their pathogenesis, the role of biological therapies in the treatment of these two vasculitides is expanding, especially in relapsing or refractory diseases...
November 13, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29143340/k2p-task-2-and-kcnq1-kcne3-k-channels-are-major-players-contributing-to-intestinal-anion-and-fluid-secretion
#2
Francisca Julio-Kalajzić, Sandra Villanueva, Johanna Burgos, Margarita Ojeda, L Pablo Cid, Thomas J Jentsch, Francisco V Sepúlveda
Anion and fluid secretion across the intestinal epithelium, a process altered in cystic fibrosis and secretory diarrhoea, is mediated by cAMP-activated CFTR Cl(-) channels and requires the simultaneous activity of basolateral K(+) channels to maintain cellular ionic homeostasis and membrane potential. This function is fulfilled by the cAMP-activated K(+) channel formed by the association of pore-forming KCNQ1 with its obligatory KCNE3 β-subunit. Studies using mice show sizable cAMP-activated intestinal anion secretion in the absence of either KCNQ1 or KCNE3 suggesting that an alternative K(+) conductance must compensate for the loss of KCNQ1/KCNE3 activity...
November 16, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/29137351/microrna-200-associated-with-metastatic-breast-cancer-promotes-traits-of-mammary-luminal-progenitor-cells
#3
Lourdes Sánchez-Cid, Mònica Pons, Juan José Lozano, Nuria Rubio, Marta Guerra-Rebollo, Aroa Soriano, Laia Paris-Coderch, Miquel F Segura, Raquel Fueyo, Judit Arguimbau, Erika Zodda, Raquel Bermudo, Immaculada Alonso, Xavier Caparrós, Marta Cascante, Arash Rafii, Yibin Kang, Marian Martínez-Balbás, Stephen J Weiss, Jerónimo Blanco, Montserrat Muñoz, Pedro L Fernández, Timothy M Thomson
MicroRNAs are critical regulators of gene networks in normal and abnormal biological processes. Focusing on invasive ductal breast cancer (IDC), we have found dysregulated expression in tumor samples of several microRNAs, including the miR-200 family, along progression from primary tumors to distant metastases, further reflected in higher blood levels of miR-200b and miR-7 in IDC patients with regional or distant metastases relative to patients with primary node-negative tumors. Forced expression of miR-200s in MCF10CA1h mammary cells induced an enhanced epithelial program, aldehyde dehydrogenase (ALDH) activity, mammosphere growth and ability to form branched tubuloalveolar structures while promoting orthotopic tumor growth and lung colonization in vivo...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29130827/association-of-single-nucleotide-polymorphisms-in-immune-related-genes-with-development-of-dengue-hemorrhagic-fever-in-a-mexican-population
#4
Angélica Berenice Vargas-Castillo, Karina Ruiz-Tovar, Héctor Vivanco-Cid, Sarai Quiroz-Cruz, Alejandro Escobar-Gutiérrez, Jorge Francisco Cerna-Cortes, Gilberto Vaughan, Salvador Fonseca-Coronado
Single-nucleotide polymorphisms (SNPs) occurring in immune-related genes have been associated with risk or protection for development of dengue, depending on ethnicity. Here, we genotyped seven SNPs located in immune response-related genes to identify their association with severe forms of dengue in patients from an endemic region in Mexico. One hundred and thirty-eight patients with dengue fever (DF), thirty-one dengue hemorrhagic fever (DHF) patients, as well as 304 healthy donors were genotyped by using a TaqMan-based approach...
November 13, 2017: Viral Immunology
https://www.readbyqxmd.com/read/29126228/prospective-randomized-blind-effect-on-outcome-study-of-conventional-vs-high-frequency-spinal-cord-stimulation-in-patients-with-pain-and-disability-due-to-failed-back-surgery-syndrome
#5
Jose De Andres, Vicente Monsalve-Dolz, Gustavo Fabregat-Cid, Vicente Villanueva-Perez, Anushik Harutyunyan, Juan Marcos Asensio-Samper, Nerea Sanchis-Lopez
Objectives: Spinal cord stimulation (SCS) for patients with failed back surgery syndrome (FBSS) show variable results and limited to moderate evidence. In the last years the stimulation of high frequency (HF) has been considered as a better alternative in this pathology for its supposed benefits compared to the stimulation with conventional frequency (CF). To compare in one year follow-up, the efficacy of high-frequency SCS (HF) versus conventional frequency SCS (CF) on the patients with FBSS...
November 4, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/29119999/ion-mobility-resolved-collision-induced-dissociation-and-electron-transfer-dissociation-of-n-glycopeptides-gathering-orthogonal-connectivity-information-from-a-single-mass-selected-precursor-ion-population
#6
Venkata Kolli, Katherine N Schumacher, Eric D Dodds
Glycopeptide-level mass spectrometry (MS) and tandem mass spectrometry (MS/MS) analyses are commonly performed to establish site-specific protein glycosylation profiles that are of central importance to gaining structure-function insights on glycoproteins. Confoundingly, the complete characterization of glycopeptide connectivity usually requires the acquisition of multiple MS/MS fragmentation spectra. Complementary ion fragmentation techniques such as collision-induced dissociation (CID) and electron transfer dissociation (ETD) are often applied in concert to address this need...
November 9, 2017: Analyst
https://www.readbyqxmd.com/read/29115359/a-direct-dynamics-study-of-the-deprotonated-guanine%C3%A2-cytosine-base-pair-intra-base-pair-proton-transfer-thermal-dissociation-vs-collision-induced-dissociation-and-comparison-with-experiment
#7
Jianbo Liu
Direct dynamics trajectories were calculated at the B3LYP/6-31G* level of theory to examine the intra-base pair proton transfer and dissociation of the deprotonated guanine (G)·cytosine (C) base pair under different excitation conditions, and to explore the origin of the nonstatistical product branching reported in a collision-induced dissociation (CID) experiment (Phys. Chem. Chem. Phys. 2016, 18, 32222). Trajectories for thermal excitation were initiated at two major conformers G·[C-H](-) (hydrogen-bonded guanine and N1-deprotonated cytosine) and G·[C-H](-)_PT (formed by proton transfer from the N1 of guanine to the N3 of deprotonated cytosine), and at their transition state (TS)...
November 8, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29112908/reproductive-decision-making-in-women-living-with-human-immunodeficiency-virus-a-systematic-review
#8
REVIEW
Juan M Leyva-Moral, Patrick A Palmieri, María Feijoo-Cid, Sandra K Cesario, Nataly Julissa Membrillo-Pillpe, Patricia N Piscoya-Angeles, Marilyn Goff, Ana Toledo-Chavarri, Joan E Edwards
OBJECTIVES: Analyze and synthesize the research evidence to understand the reproductive decisions made by women living with HIV from the beginning of the epidemic to the present. Evaluate the barriers and the facilitators for reproductive decision-making. Identify areas of strength, improvement, and those requiring further research. DESIGN AND DATA SOURCES: Systematic review following the PRISMA guideline. PubMed, CINAHL, PsycINFO, Cochrane Library, SocINDEX, Embase, and Scopus databases were searched from 1985 to 2016 using the following Keywords: HIV, AIDS, pregnancy, reproduction, and decision-making...
October 25, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/29112490/implementation-of-specialized-pharmaceutical-care-hospital-outpatient-clinics-in-a-hospital-pharmacy-department
#9
Luis Margusino-Framiñán, Purificación Cid-Silva, Cristina Martínez-Roca, Marta García-Queiruga, Elena Fernández-Gabriel, María Mateos-Salvador, María Teresa Rabuñal-Álvarez, María Isaura Pedreira-Vázquez, Isabel Martín-Herranz
OBJECTIVE: To describe the organization of patient care into Specialized Pharmaceutical Care Hospital Outpatient Clinics in a Hospital Pharmacy Department, to evaluate their healthcare quality, and the quality  perceived by outpatients. METHOD: A retrospective observational study in a High-Level Hospital Pharmacy Department during three periods (years 2010, 2013 and 2016); description of  the organization at the levels of structure, human resources, material resources  and working procedures; evaluation of healthcare quality through the analysis of  three variables in terms of procedure: prior appointment compliance, waiting  time and documentation of pharmaceutical care; evaluation of quality perceived  by outpatients through a satisfaction survey; comparative statistical analysis of  means (Student's t) and proportions (Pearson's chi square)...
November 1, 2017: Farmacia Hospitalaria
https://www.readbyqxmd.com/read/29112068/initial-treatment-response-among-hiv-subtype-f-infected-patients-who-started-antiretroviral-therapy-based-on-integrase-inhibitors
#10
Purificación Cid-Silva, Luis Margusino-Framiñán, Vanesa Balboa-Barreiro, Isabel Martín-Herranz, Ángeles Castro-Iglesias, Berta Pernas-Souto, Josep M Llibre, Eva Poveda
HIV-1 subtype B (54.4%) and subtype F (27.2%) are the most prevalent variants in patients who started antiretroviral therapy including an integrase inhibitor (INI) in the last two years in Northwest Spain. Virological response rates to antiretroviral therapy based on INI were significantly lower among F subtypes compared to B subtypes at weeks 12 (25.0% vs. 75.0%), and 24 (59.1% vs. 95.0%). Subtype F was independently associated with virological response at 24 weeks [OR 11.8 (95%CI 1.1-119.9); p = 0.037]...
November 2, 2017: AIDS
https://www.readbyqxmd.com/read/29111561/gstt1-and-gstm1-null-variants-in-mestizo-and-amerindian-populations-from-northwestern-mexico-and-a-literature-review
#11
Luz Elena Palma-Cano, Emilio J Córdova, Lorena Orozco, Angélica Martínez-Hernández, Miguel Cid, Irene Leal-Berumen, Angel Licón-Trillo, Ruth Lechuga-Valles, Mauricio González-Ponce, Everardo González-Rodríguez, Verónica Moreno-Brito
The GSTT1 and GSTM1 genes are key molecules in cellular detoxification. Null variants in these genes are associated with increase susceptibility to developing different types of cancers. The aim of this study was to determine the prevalence of GSTT1 and GSTM1 null genotypes in Mestizo and Amerindian individuals from the Northwestern region of Mexico, and to compare them with those reported worldwide. GSTT1 and GSTM1 null variants were genotyped by multiplex PCR in 211 Mestizos and 211 Amerindian individuals...
November 6, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/29110630/genotoxicity-of-4-piperazin-1-yl-8-trifluoromethyl-pyrido-2-3-e-1-2-4-triazolo-4-3-a-pyrazine-a-potent-h4-receptor-antagonist-for-the-treatment-of-allergy-evidence-of-glyoxal-intermediate-involvement
#12
Mithat Gunduz, Amanda L Cirello, Peter Klimko, Jennifer L Dumouchel, Upendra A Argikar
BACKGROUND: 4-(piperazin-1-yl)-8-(trifluoromethyl)pyrido[2,3-e][1,2,4]triazolo[4,3-a]pyrazine (1) is small-molecule which demonstrated a sub-nM inhibitory potency toward the histamine H4 receptor (H4R). However, it was found to be mutagenic an in vitro Ames assay. Metabolic bioactivation of 1 could potentially arise from the piperazine moiety by forming reactive intermediates such as glyoxal, aldehyde-imine and/or iminium ion, which could all lead to genotoxicity. The aim was to investigate bioactivation of 1 to determine the potential causes of the genotoxicity and mitigate liabilities in this scaffold...
November 6, 2017: Drug Metabolism Letters
https://www.readbyqxmd.com/read/29105031/adsorption-of-co-and-no-molecules-onto-pentagonal-clusters-of-aluminum-a-dft-study
#13
M Salazar-Villanueva, A Bautista Hernandez, J Flores Mendez, A A Peláez Cid, S Valdez
DFT calculations were carried out in order to determine the electronic and structural properties of pentagonal Al n (I h and D 5d symmetries), Al n -CO, and Al n -NO clusters, where n = 7, 13, 19, 43, or 55 atoms. As n was increased, the bare clusters were found to exhibit a transition in electronic behavior (from semiconductor to conductor) at n = 43 atoms. Clusters with a bound CO or NO molecule also showed this behavior, although their HOMO-LUMO energy gaps were smaller than those for the corresponding bare clusters...
November 6, 2017: Journal of Molecular Modeling
https://www.readbyqxmd.com/read/29103511/purification-and-characterisation-of-%C3%AE%C2%BA-carrageenan-oligosaccharides-prepared-by-%C3%AE%C2%BA-carrageenase-from-thalassospira-sp-fjfst-332
#14
Juanjuan Guo, Zhichang Zheng, Xu Lu, Shaoxiao Zeng, Chi Chen, Longtao Zhang, Baodong Zheng
κ-Carrageenan oligosaccharides (KCOs) are promising agents for treating inflammatory diseases. However, the lack of purification and structural elucidation of KCOs has limited structure-function evaluation. In this study, using a system coupling medium pressure liquid chromatography (MPLC) with an evaporative light scattering detector (ELSD), four types of KCOs were separated. The total yield of the four KCO powders was ∼5.02% after purification (KCOs/κ-carrageenan, w/w). Their structural identities were characterised by ESI-MS, CID-MS/MS and NMR, as κ-neocarrabiose (α-DA-1,3-G4Srα/β), κ-neocarratetraose (α-DA-1,3-β-G4S-1,4-α-DA-1,3-G4Srα/β), κ-neocarrahexaose (α-DA-1,3-β-G4S-1,4-α-DA-1,3-β-G4S-1,4-α-DA-1,3-G4Srα/β) and heterozygous κ/ι-neocarrahexaose (α-DA/DA2S-1,3-β-G4S-1,4-α-DA-1,3-β-G4S-1,4-α-DA-1,3-G4Srα/β)...
January 15, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29101054/mapping-of-drug-distribution-in-the-rabbit-liver-tumor-model-by-complementary-fluorescence-and-mass-spectrometry-imaging
#15
Katrin Fuchs, Andras Kiss, Pierre E Bize, Rafael Duran, Alban Denys, Gérard Hopfgartner, Gerrit Borchard, Olivier Jordan
This study describes the use of fluorescence imaging and mass spectrometry imaging, for imaging the anti-angiogenic drug sunitinib, used to treat liver cancer. These techniques allowed for the assessment of local delivery of the unlabeled therapeutic drug. More specifically, the spatial distribution of the drug and its metabolites after local administration was investigated, and drug levels in tumor and liver tissue over time were quantified. For this purpose, sunitinib-eluting microspheres were locoregionally injected into the tumor feeding arteries of rabbits bearing liver tumors...
October 31, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29099224/replica-symmetry-breaking-in-the-photonic-ferromagneticlike-spontaneous-mode-locking-phase-of-a-multimode-nd-yag-laser
#16
André L Moura, Pablo I R Pincheira, Albert S Reyna, Ernesto P Raposo, Anderson S L Gomes, Cid B de Araújo
We demonstrate the replica symmetry breaking (RSB) phenomenon in the spontaneous mode-locking regime of a multimode Q-switched Nd:YAG laser. The underlying mechanism is quite distinct from that of the RSB recently observed in random lasers. Here, there is no random medium and the phase is not glassy with incoherently oscillating modes as in random lasers. Instead, in each pulse a specific subset of longitudinal modes are activated in a nondeterministic way, whose coherent oscillation dominates and frustrates the others...
October 20, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/29093082/according-to-hcv-infection-stage-il-7-plus-4-1bb-triggering-alone-or-combined-with-pd-1-blockade-increases-traf1-low-hcv-specific-cd8-cell-reactivity
#17
Elia Moreno-Cubero, Dolores Subirá, Eduardo Sanz-de-Villalobos, Trinidad Parra-Cid, Antonio Madejón, Joaquín Miquel, Antonio Olveira, Alejandro González-Praetorius, Javier García-Samaniego, Juan-Ramón Larrubia
Hepatitis C virus (HCV)-specific CD8(+) T cells suffer a progressive exhaustion during persistent HCV infection (PI). This process could involve the positive immune checkpoint 4-1BB/4-1BBL, through the loss of its signal transducer TRAF1. To address this issue, peripheral HCV-specific CD8(+) T cells (Pentamer(+)/CD8(+)) from patients with PI and resolved infection after treatment (RI) were studied. Duration of HCV infection and liver fibrosis progression rate inversely correlated with the likelihood of detecting peripheral pentamer(+)/CD8(+) cells...
November 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29074893/field-evidence-for-transfer-of-plastic-debris-along-a-terrestrial-food-chain
#18
Esperanza Huerta Lwanga, Jorge Mendoza Vega, Victor Ku Quej, Jesus de Los Angeles Chi, Lucero Sanchez Del Cid, Cesar Chi, Griselda Escalona Segura, Henny Gertsen, Tamás Salánki, Martine van der Ploeg, Albert A Koelmans, Violette Geissen
Although plastic pollution happens globally, the micro- (<5 mm) and macroplastic (5-150 mm) transfer of plastic to terrestrial species relevant to human consumption has not been examined. We provide first-time evidence for micro- and macroplastic transfer from soil to chickens in traditional Mayan home gardens in Southeast Mexico where waste mismanagement is common. We assessed micro- and macroplastic in soil, earthworm casts, chicken feces, crops and gizzards (used for human consumption). Microplastic concentrations increased from soil (0...
October 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29074240/biomonitoring-of-intermittent-rivers-and-ephemeral-streams-in-europe-current-practice-and-priorities-to-enhance-ecological-status-assessments
#19
REVIEW
Rachel Stubbington, Richard Chadd, Núria Cid, Zoltán Csabai, Marko Miliša, Manuela Morais, Antoni Munné, Petr Pařil, Vladimir Pešić, Iakovos Tziortzis, Ralf C M Verdonschot, Thibault Datry
Intermittent rivers and ephemeral streams (IRES) are common across Europe and dominate some Mediterranean river networks. In all climate zones, IRES support high biodiversity and provide ecosystem services. As dynamic ecosystems that transition between flowing, pool, and dry states, IRES are typically poorly represented in biomonitoring programmes implemented to characterize EU Water Framework Directive ecological status. We report the results of a survey completed by representatives from 20 European countries to identify current challenges to IRES status assessment, examples of best practice, and priorities for future research...
October 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29070798/remodeling-of-the-streptococcus-mutans-proteome-in-response-to-lrgab-and-external-stresses
#20
Sang-Joon Ahn, Tongjun Gu, Jin Koh, Kelly C Rice
The Streptococcus mutans Cid/Lrg system represents an ideal model to study how this organism withstands various stressors encountered in the oral cavity. Mutation of lrgAB renders S. mutans more sensitive to oxidative, heat, and vancomycin stresses. Here, we have performed a comprehensive proteomics experiment using label-free quantitative mass spectrometry to compare the proteome changes of wild type UA159 and lrgAB mutant strains in response to these same stresses. Importantly, many of identified proteins showed either a strikingly large fold-change, or were completely suppressed or newly induced in response to a particular stress condition...
October 25, 2017: Scientific Reports
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