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https://www.readbyqxmd.com/read/28449324/efficacy-and-safety-of-lixisenatide-in-patients-with-type-2-diabetes-and-renal-impairment
#1
M Hanefeld, J M Arteaga, L A Leiter, G Marchesini, E Nikonova, M Shestakova, W Stager, R Gómez-Huelgas
AIMS: This post hoc assessment evaluated the efficacy and safety of once-daily, prandial glucagon-like peptide-1 receptor agonist lixisenatide in patients with type 2 diabetes (T2D) and normal renal function (eGFR ≥90 mL/min), or mild (60-89 mL/min) or moderate (30-59 mL/min) renal impairment. METHODS: Patients from nine lixisenatide trials in the GetGoal clinical trial programme were categorized by baseline creatinine clearance: normal renal function (lixisenatide n = 2094, placebo n = 1150); renal impairment (mild: lixisenatide n = 637, placebo n = 414; moderate: lixisenatide n = 122, placebo n = 68)...
April 27, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28445874/erythropoietin-treatment-exacerbates-moderate-injury-after-hypoxia-ischemia-in-neonatal-superoxide-dismutase-transgenic-mice
#2
R Ann Sheldon, Christine Windsor, Byong Sop Lee, Olatz Arteaga Cabeza, Donna M Ferriero
The neonatal brain is highly susceptible to oxidative stress as developing endogenous antioxidant mechanisms are overwhelmed. In the neonate, superoxide dismutase (SOD) overexpression worsens hypoxic-ischemic injury due to H2O2 accumulation in the brain. Erythropoietin (EPO) is upregulated in 2 phases after HI, early (4 h) and late (7 days), and exogenous EPO has been effective in reducing the injury, possibly through reducing oxidative stress. We hypothesized that exogenous EPO would limit injury from excess H2O2 seen in SOD1-overexpressing mice, and thus enhance recovery after HI...
April 27, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28433908/steam-torrefaction-of-eucalyptus-globulus-for-producing-black-pellets-a-pilot-scale-experience
#3
Luis E Arteaga-Pérez, Héctor Grandón, Mauricio Flores, Cristina Segura, Stephen S Kelley
Steam torrefaction of Eucalyptus globulus was performed at temperatures between 245°C and 265°C in a 100kg/h pilot plant. Torrefied biomass was then pelletized in a 300kg/h unit and the pellets were subject to durability, density and combustion tests. The structural changes measured with FTIR were studied along with the combustion behavior of the materials. Compositional analysis showed that increasing the torrefaction temperature reduced both hemicellulose fraction and overall mass yield (MY). Furthermore, there was a linear relationship between the energy yield (EY) and mass yield (EY=[1...
April 11, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28416102/synthesis-biochemical-evaluation-and-molecular-modeling-studies-of-aryl-and-arylalkyl-di-n-butyl-phosphates-effective-butyrylcholinesterase-inhibitors
#4
Kensaku Nakayama, Jason P Schwans, Eric J Sorin, Trina Tran, Jeannette Gonzalez, Elvis Arteaga, Sean McCoy, Walter Alvarado
A series of dialkyl aryl phosphates and dialkyl arylalkyl phosphates were synthesized. Their inhibitory activities were evaluated against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). The di-n-butyl phosphate series consistently displayed selective inhibition of BChE over AChE. The most potent inhibitors of butyrylcholinesterase were di-n-butyl-3,5-dimethylphenyl phosphate (4b) [KI=1.0±0.4μM] and di-n-butyl 2-naphthyl phosphate (5b) [KI=1.9±0.4μM]. Molecular modeling was used to uncover three subsites within the active site gorge that accommodate the three substituents attached to the phosphate group...
April 5, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28414155/recent-advances-in-cochlear-hair-cell-regeneration-a-promising-opportunity-for-the-treatment-of-age-related-hearing-loss
#5
REVIEW
Miren Revuelta, Francisco Santaolalla, Olatz Arteaga, Antonia Alvarez, Ana Sánchez-Del-Rey, Enrique Hilario
The objective of this paper is to review current information regarding the treatment of age-related hearing loss by using cochlear hair cell regeneration. Recent advances in the regeneration of the inner ear, including the usefulness of stem cells, are also presented. Based on the current literature, cochlear cell regeneration may well be possible in the short term and cochlear gene therapy may also be useful for the treatment of hearing loss associated with ageing. The present review provide further insight into the pathogenesis of Inner Ear senescence and aged-related hearing loss and facilitate the development of therapeutic strategies to repair hair cells damaged by ageing...
April 13, 2017: Ageing Research Reviews
https://www.readbyqxmd.com/read/28413766/five-component-self-assembly-of-cucurbituril-based-hetero-pseudorotaxanes
#6
Cátia Parente Carvalho, Zoe Domínguez, Cristina Domínguez, Hamdy S El-Sheshtawy, José Paulo Da Silva, Jesús F Arteaga, Uwe Pischel
[5]Pseudorotaxanes can be obtained by self-sorting using heteroditopic guests and various cucurbituril homologues as hosts. The assembly and chemically induced disassembly of the pseudorotaxanes can be monitored by measuring the fluorescence of the anthracene guest in solution. Mass spectral evidence for the supramolecular assemblies is obtained in the gas phase. The disassembly in the gas phase can be achieved by collision-induced dissociation leading to the corresponding [2]- and [3]pseudorotaxanes.
April 2017: ChemistryOpen
https://www.readbyqxmd.com/read/28412049/more-than-a-destination-contraceptive-decision-making-as-a-journey
#7
Margaret Mary Downey, Stephanie Arteaga, Elodia Villaseñor, Anu Manchikanti Gomez
BACKGROUND: Contraceptive use is widely recognized as a means of reducing adverse health-related outcomes. However, dominant paradigms of contraceptive counseling may rely on a narrow definition of "evidence" (i.e., scientifically accurate but exclusive of individual women's experiences). Given increased enthusiasm for long-acting, reversible contraceptive methods, such paradigms may reinforce counseling that overprivileges effectiveness, particularly for groups considered at high risk of unintended pregnancy...
April 12, 2017: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/28403593/influence-of-secondary-diagnoses-in-the-development-of-urinary-incontinence-after-radical-prostatectomy
#8
Bárbara Padilla-Fernández, Álvaro Julio Virseda-Rodríguez, Lauro Sebastián Valverde-Martínez, Bruno Jorge Pereira, Hugo Coelho, Maria Tatiana Santos-Antunes, Manuel Montesino-Semper, Carlos Müller-Arteaga, José Luis Álvarez-Ossorio-Fernández, Filippo Migliorini, Ana Lorenzo-Gómez, María Begoña García-Cenador, Patricia Antúnez-Plaza, Juan Miguel Silva-Abuín, María Fernanda Lorenzo-Gómez
OBJECTIVE: To study whether there are factors related to secondary diagnoses (SDg) present in patients with prostate cancer that influence the development of urinary incontinence after radical prostatectomy (RP). MATERIALS AND METHODS: A retrospective multicenter observational study was performed reviewing the medical records of 430 men who underwent RP due to organ-confined prostate cancer in 9 different hospitals. Two study groups were distinguished: Group A (GA): Patients without urinary incontinence after RP; Group B (GB): patients with any degree of post-surgical urinary incontinence...
March 31, 2017: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/28396358/extracellular-matrix-integrin-signaling-promotes-resistance-to-combined-inhibition-of-her2-and-pi3k-in-her2-breast-cancer
#9
Ariella B Hanker, Monica Valeria Estrada, Giampaolo Bianchini, Preston D Moore, Junfei Zhao, Feixiong Cheng, Luca Gianni, James P Koch, Darren R Tyson, Violeta Sanchez, Brent N Rexer, Melinda Sanders, Zhongming Zhao, Thomas Stricker, Carlos L Arteaga
PIK3CA mutations are associated with resistance to HER2-targeted therapies. We previously showed that HER2+/PIK3CA(H1047R) transgenic mammary tumors are resistant to the HER2 antibodies trastuzumab and pertuzumab but respond to PI3K inhibitor buparlisib (TPB). In this study, we identified mechanisms of resistance to combined inhibition of HER2 and PI3K. TPB-resistant tumors were generated by treating HER2+/PIK3CA(H1047R) mice long-term with the drug combination. RNA-sequencing of TPB-resistant tumors revealed that extracellular matrix (ECM) and cell adhesion genes, including collagen II (Col2a1), were markedly upregulated, accompanied by activation of integrin β1/Src...
April 10, 2017: Cancer Research
https://www.readbyqxmd.com/read/28394952/-menopause-and-cardiovascular-risk
#10
Eugenio Arteaga Urzúa
No abstract text is available yet for this article.
November 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/28385557/changes-in-hormonal-levels-associated-with-enforced-interval-copulation-and-anxiety-in-sexually-inexperienced-and-experienced-male-rats
#11
Tzintli Meraz-Medina, Marisela Hernández-González, Herlinda Bonilla-Jaime, Miguel Angel Guevara, Leopoldo Flores-Mancilla, Rosa María Vigueras-Villaseñor, Marcela Arteaga-Silva
This study evaluated the effect of sexual experience on anxiety and hormonal levels associated with the performance of sexual behavior. Two groups of male rats, one with, the second without, sexual experience, were exposed to four different copulatory conditions: ad libitum copulation until ejaculation (ADC-E); enforced interval copulation until ejaculation (EIC-E); ad libitum copulation up to 3 intromissions (ADC-3I); and enforced interval copulation up to 3 intromissions (EIC-E3I). At the end of each condition the animals were subjected to an open-field test to measure anxiety, before being sacrificed to measure corticosterone (CORT) and testosterone (T) levels...
April 4, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28385277/ocular-pathology-in-the-nobleman-with-his-hand-on-his-chest-dom%C3%A3-nikos-theotok%C3%A3-poulos-el-greco
#12
E Santos-Bueso, A Arteaga-Sánchez, J Porta-Etessam, J M Vinuesa-Silva, J García-Sánchez
No abstract text is available yet for this article.
April 3, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/28381415/her2-overexpressing-breast-cancers-amplify-fgfr-signaling-upon-acquisition-of-resistance-to-dual-therapeutic-blockade-of-her2
#13
Ariella B Hanker, Joan G Garrett, Monica Valeria Estrada, Preston D Moore, Paula G Ericsson, James P Koch, Emma Langley, Sharat Singh, Phillip S Kim, Garrett M Frampton, Eric M Sanford, Philip Owns, Jennifer Becker, M Reid Groseclose, Stephen Castellino, Heikki Joensuu, Jens Huober, Jan C Brase, Majjaj Samira, Sylvain Brohée, David Venet, David Brown, José Baselga, Martine Piccart, Christos Sotiriou, Carlos L Arteaga
Dual blockade of HER2 with trastuzumab and lapatinib or pertuzumab has been shown to be superior to single-agent trastuzumab. However, a significant fraction of HER2-overexpressing (HER2+) breast cancers escape from these drug combinations. In this study, we sought to discover the mechanisms of acquired resistance to the combination of lapatinib + trastuzumab.<br /><br />Experimental Design: HER2+ BT474 xenografts were treated with lapatinib + trastuzumab long-term until resistance developed. Potential mechanisms of acquired resistance were evaluated in lapatinib + trastuzumab-resistant (LTR) tumors by targeted capture next-generation sequencing...
April 5, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28363666/risk-factors-for-mortality-after-surgery-of-osteoporotic-hip-fracture-in-patients-over-65-years-of-age
#14
M I Aranguren-Ruiz, M V Acha-Arrieta, J M Casas-Fernández de Tejerina, M Arteaga-Mazuelas, V Jarne-Betrán, R Arnáez-Solis
OBJECTIVE: To evaluate, from a clinical perspective, and with easily identifiable variables, those factors that influence the survival of patients admitted to a care unit designed for the comprehensive treatment of patients with hip fracture after being surgically treated. MATERIAL AND METHODS: A prospective study was conducted on a cohort of patients (n=202) aged 65 years or older with a low impact hip fracture, who were surgically intervened in a tertiary hospital...
March 28, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/28360483/mapleson-d-continuous-positive-airway-pressure-system-for-weaning-of-mechanical-ventilation-in-pediatric-patients-in-response
#15
Miguel Angel Palomero Rodríguez, Héctor Chozas de Arteaga, Yolanda Laporta Báez, Jesús de Vicente Sánchez, Antonio Pérez Ferrer
No abstract text is available yet for this article.
March 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28341221/a-systematic-review-of-obesity-disparities-research
#16
REVIEW
Charlotte A Pratt, Catherine M Loria, Sonia S Arteaga, Holly L Nicastro, Maria Lopez-Class, Janet M de Jesus, Pothur Srinivas, Christine Maric-Bilkan, Lisa Schwartz Longacre, Josephine E A Boyington, Abera Wouhib, Nara Gavini
CONTEXT: A review of interventions addressing obesity disparities could reveal gaps in the literature and provide guidance on future research, particularly for populations with a high prevalence of obesity and obesity-related cardiometabolic risk. EVIDENCE ACQUISITION: A systematic review of clinical trials in obesity disparities research that were published in 2011-2016 in PubMed/MEDLINE resulted in 328 peer-reviewed articles. Articles were excluded if they had no BMI, weight, or body composition measure as primary outcome or were foreign (n=201); were epidemiologic or secondary data analyses of clinical trials (n=12); design or protocol papers (n=54); systematic reviews (n=3); or retracted or duplicates (n=9)...
March 21, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28340905/searching-objective-criteria-for-patient-assignment-in-addiction-treatment
#17
José J López-Goñi, Javier Fernández-Montalvo, Alfonso Arteaga, Sonia Esarte
The main aim of this study was to objectify the treatment assignment criteria used in a clinical centre for addiction treatment in Spain. A sample of 162 patients (87 inpatients and 75 outpatients) who sought treatment between 2010 and 2012 was assessed. Clinical characteristics (addiction severity, psychopathological symptoms, impulsiveness and maladjustment) of the two treatment groups (inpatient and outpatient) into which patients were assigned according to the clinical criteria of therapists were analysed to identify which variables were more relevant for patient placement...
May 2017: Journal of Substance Abuse Treatment
https://www.readbyqxmd.com/read/28329011/diversification-of-the-rainfrog-pristimantis-ornatissimus-in-the-lowlands-and-andean-foothills-of-ecuador
#18
Juan M Guayasamin, Carl R Hutter, Elicio E Tapia, Jaime Culebras, Nicolás Peñafiel, R Alexander Pyron, Carlos Morochz, W Chris Funk, Alejandro Arteaga
Geographic barriers and elevational gradients have long been recognized as important in species diversification. Here, we illustrate an example where both mechanisms have shaped the genetic structure of the Neotropical rainfrog, Pristimantis ornatissimus, which has also resulted in speciation. This species was thought to be a single evolutionary lineage distributed throughout the Ecuadorian Chocó and the adjacent foothills of the Andes. Based on recent sampling of P. ornatissimus sensu lato, we provide molecular and morphological evidence that support the validity of a new species, which we name Pristimantis ecuadorensis sp...
2017: PloS One
https://www.readbyqxmd.com/read/28327854/-intersectoral-experience-to-bridge-the-gap-between-human-resources-in-public-health-and-the-technical-operational-level-for-peruvian-voluntary-military-service-members
#19
Franco Romaní-Romaní, Maricela Curisinche-Rojas, Norka Rojas Arteaga, Pedro Riega Lopez, César Cabezas
There is a gap between human resources and technical-operational education that limits the Peruvian health system's ability to implement public health interventions. The Peruvian Ministry of Health, through the National Health Institute and the Ministry of Defense, implemented a Public Health Training Program addressed to young full-time military servicemen, on the basis of the competency profile of a public health technician. The program consists of seven thematic units given in 390 hours, 200 of which correspond to classroom and field practices...
October 2016: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/28325290/rna-guided-crispr-cas9-system-mediated-engineering-of-acute-myeloid-leukemia-mutations
#20
Oliver Brabetz, Vijay Alla, Linus Angenendt, Christoph Schliemann, Wolfgang E Berdel, Maria-Francisca Arteaga, Jan-Henrik Mikesch
Current acute myeloid leukemia (AML) disease models face severe limitations because most of them induce un-physiological gene expressions that do not represent conditions in AML patients and/or depend on external promoters for regulation of gene expression/repression. Furthermore, many AML models are based on reciprocal chromosomal translocations that only reflect the minority of AML patients, whereas more than 50% of patients have a normal karyotype. The majority of AML, however, is driven by somatic mutations...
March 17, 2017: Molecular Therapy. Nucleic Acids
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