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https://www.readbyqxmd.com/read/29346388/safety-and-pharmacokinetic-profile-of-fixed-dose-ivermectin-with-an-innovative-18mg-tablet-in-healthy-adult-volunteers
#1
Jose Muñoz, Maria Rosa Ballester, Rosa Maria Antonijoan, Ignasi Gich, Montse Rodríguez, Enrico Colli, Silvia Gold, Alejandro J Krolewiecki
ClinicalTrials.gov NCT03173742.
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29346367/assessment-of-serum-pharmacokinetics-and-urinary-excretion-of-albendazole-and-its-metabolites-in-human-volunteers
#2
Laura Ceballos, Alejandro Krolewiecki, Marisa Juárez, Laura Moreno, Fabian Schaer, Luis I Alvarez, Rubén Cimino, Judd Walson, Carlos E Lanusse
BACKGROUND: Soil Transmitted Helminth (STH) infections negatively impact physical and mental development in human populations. Current WHO guidelines recommend morbidity control of these infections through mass drug administration (MDA) using albendazole (ABZ) or mebendazole. Despite major reductions in STH associated morbidity globally, not all programs have demonstrated the expected impact on prevalence of parasite infections. These therapeutic failures may be related to poor programmatic coverage, suboptimal adherence or the exposure of parasites to sub-therapeutic drug concentrations...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29346247/concurrent-versus-sequential-intrapleural-instillation-of-tissue-plasminogen-activator-and-deoxyribonuclease-for-pleural-infection
#3
Fayez Kheir, George Cheng, Estefania Rivera, Alejandro Folch, Erik Folch, Fernandez-Bussy Sebastian, Colleen Keyes, Mihir Parikh, Colleen Channick, Alex Chee, Adnan Majid
BACKGROUND: Treatment of pleural infection with instillation of sequential intrapleural tissue plasminogen activator (tPA) and human recombinant deoxyribonuclease (DNase) twice daily for a total of 6 doses has been shown to decrease surgical referral and improve radiographic imaging. This labor-intensive regimen was empirically chosen. Thus, it remains unclear whether the 2 drugs can be administered immediately one after the other (concurrent administration) instead of instilling them separately with a 1-hour to 2-hour interval in between (sequential administration)...
January 16, 2018: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/29345316/histopathological-findings-in-pregnancy-associated-cutaneous-hyperpigmentation
#4
Angel Fernandez-Flores, Juan Manuel Barja, Alejandro Vilas-Sueiro, Antonio Alija
Hyperpigmentation in pregnancy is a common phenomenon, experienced to some degree by up to 90% of pregnant women. It mainly involves sun-exposed areas, but it can extend to non-exposed zones. Cases with extensive hyperpigmentation are rarely reported. In this paper, we describe the case of a 30-year-old phototype V woman in her 37th week of pregnancy, who presented with brownish hyperpigmentation of the skin in extensive areas, including both axillae, the abdomen, and the lowest part of the back. In the abdomen, there was a reinforcement of the hyperpigmentation through the linea nigra and the umbilicus...
January 18, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29345103/incidence-of-common-cancers-in-users-of-antimuscarinic-medications-for-overactive-bladder-a-danish-nationwide-cohort-study
#5
Jesper Hallas, Andrea V Margulis, Anton Pottegård, Nina Sahlertz Kristiansen, Willem Jan Atsma, Kwame Appenteng, Stefan de Vogel, James A Kaye, Susana Perez-Gutthann, Alejandro Arana
The purpose of this study was to estimate the incidence rate (IR) of 10 common cancers in new users of antimuscarinic overactive bladder (OAB) medications. We conducted a cohort study using data recorded in Danish registers for patients newly exposed to the OAB drugs darifenacin, fesoterodine, oxybutynin, solifenacin, tolterodine or trospium in years 2004-2012, aged ≥18 years and without cancer before treatment initiation. We estimated IRs for each study cancer (bladder, breast, colorectal, lung, melanoma, non-Hodgkin lymphoma, pancreas, prostate, renal and uterine), standardised by age and sex and explored IR trends over time since treatment initiation...
January 17, 2018: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29344662/dengue-virus-1-ns5-genetic-variant-associated-with-a-severe-clinical-infection-possible-reduction-of-the-innate-immune-response-by-inhibition-of-interferon-type-1-and-the-janus-kinase-signal-transducer-and-activator-of-transcription-signaling-pathway
#6
Iván Delgado-Enciso, Uriel A López-Lemus, Jose A Valcarcel-Gamiño, Iram P Rodriguez-Sanchez, Salvador Valle-Reyes, Margarita L Martinez-Fierro, Valery Melnikov, José Guzmán-Esquivel, Felipe Vaca-Paniagua, Laura L Valdez-Velazquez, Luz M Baltazar-Rodriguez, Alejandro D Soriano-Hernandez, Brenda Paz-Michel, Francisco Espinoza-Gómez
Dengue virus (DENV) is currently considered as one of the most important mosquito-borne viral pathogens affecting humans. Genetic variations in viruses are likely to be a condition for more effective evasion of the immune system and resulting in severe clinical consequences. The DENV‑1 NS5 gene was sequenced to establish whether during an epidemic burst there were genetic variations of the virus and whether any variant was associated (through a case‑control design) with severe clinical behavior. A total of 31 patients positive for DENV‑1 were enrolled...
January 17, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29343741/species-distribution-modelling-contrasting-presence-only-models-with-plot-abundance-data
#7
Vitor H F Gomes, Stéphanie D IJff, Niels Raes, Iêda Leão Amaral, Rafael P Salomão, Luiz de Souza Coelho, Francisca Dionízia de Almeida Matos, Carolina V Castilho, Diogenes de Andrade Lima Filho, Dairon Cárdenas López, Juan Ernesto Guevara, William E Magnusson, Oliver L Phillips, Florian Wittmann, Marcelo de Jesus Veiga Carim, Maria Pires Martins, Mariana Victória Irume, Daniel Sabatier, Jean-François Molino, Olaf S Bánki, José Renan da Silva Guimarães, Nigel C A Pitman, Maria Teresa Fernandez Piedade, Abel Monteagudo Mendoza, Bruno Garcia Luize, Eduardo Martins Venticinque, Evlyn Márcia Moraes de Leão Novo, Percy Núñez Vargas, Thiago Sanna Freire Silva, Angelo Gilberto Manzatto, John Terborgh, Neidiane Farias Costa Reis, Juan Carlos Montero, Katia Regina Casula, Beatriz S Marimon, Ben-Hur Marimon, Euridice N Honorio Coronado, Ted R Feldpausch, Alvaro Duque, Charles Eugene Zartman, Nicolás Castaño Arboleda, Timothy J Killeen, Bonifacio Mostacedo, Rodolfo Vasquez, Jochen Schöngart, Rafael L Assis, Marcelo Brilhante Medeiros, Marcelo Fragomeni Simon, Ana Andrade, William F Laurance, José Luís Camargo, Layon O Demarchi, Susan G W Laurance, Emanuelle de Sousa Farias, Henrique Eduardo Mendonça Nascimento, Juan David Cardenas Revilla, Adriano Quaresma, Flavia R C Costa, Ima Célia Guimarães Vieira, Bruno Barçante Ladvocat Cintra, Hernán Castellanos, Roel Brienen, Pablo R Stevenson, Yuri Feitosa, Joost F Duivenvoorden, Gerardo A Aymard C, Hugo F Mogollón, Natalia Targhetta, James A Comiskey, Alberto Vicentini, Aline Lopes, Gabriel Damasco, Nállarett Dávila, Roosevelt García-Villacorta, Carolina Levis, Juliana Schietti, Priscila Souza, Thaise Emilio, Alfonso Alonso, David Neill, Francisco Dallmeier, Leandro Valle Ferreira, Alejandro Araujo-Murakami, Daniel Praia, Dário Dantas do Amaral, Fernanda Antunes Carvalho, Fernanda Coelho de Souza, Kenneth Feeley, Luzmila Arroyo, Marcelo Petratti Pansonato, Rogerio Gribel, Boris Villa, Juan Carlos Licona, Paul V A Fine, Carlos Cerón, Chris Baraloto, Eliana M Jimenez, Juliana Stropp, Julien Engel, Marcos Silveira, Maria Cristina Peñuela Mora, Pascal Petronelli, Paul Maas, Raquel Thomas-Caesar, Terry W Henkel, Doug Daly, Marcos Ríos Paredes, Tim R Baker, Alfredo Fuentes, Carlos A Peres, Jerome Chave, Jose Luis Marcelo Pena, Kyle G Dexter, Miles R Silman, Peter Møller Jørgensen, Toby Pennington, Anthony Di Fiore, Fernando Cornejo Valverde, Juan Fernando Phillips, Gonzalo Rivas-Torres, Patricio von Hildebrand, Tinde R van Andel, Ademir R Ruschel, Adriana Prieto, Agustín Rudas, Bruce Hoffman, César I A Vela, Edelcilio Marques Barbosa, Egleé L Zent, George Pepe Gallardo Gonzales, Hilda Paulette Dávila Doza, Ires Paula de Andrade Miranda, Jean-Louis Guillaumet, Linder Felipe Mozombite Pinto, Luiz Carlos de Matos Bonates, Natalino Silva, Ricardo Zárate Gómez, Stanford Zent, Therany Gonzales, Vincent A Vos, Yadvinder Malhi, Alexandre A Oliveira, Angela Cano, Bianca Weiss Albuquerque, Corine Vriesendorp, Diego Felipe Correa, Emilio Vilanova Torre, Geertje van der Heijden, Hirma Ramirez-Angulo, José Ferreira Ramos, Kenneth R Young, Maira Rocha, Marcelo Trindade Nascimento, Maria Natalia Umaña Medina, Milton Tirado, Ophelia Wang, Rodrigo Sierra, Armando Torres-Lezama, Casimiro Mendoza, Cid Ferreira, Cláudia Baider, Daniel Villarroel, Henrik Balslev, Italo Mesones, Ligia Estela Urrego Giraldo, Luisa Fernanda Casas, Manuel Augusto Ahuite Reategui, Reynaldo Linares-Palomino, Roderick Zagt, Sasha Cárdenas, William Farfan-Rios, Adeilza Felipe Sampaio, Daniela Pauletto, Elvis H Valderrama Sandoval, Freddy Ramirez Arevalo, Isau Huamantupa-Chuquimaco, Karina Garcia-Cabrera, Lionel Hernandez, Luis Valenzuela Gamarra, Miguel N Alexiades, Susamar Pansini, Walter Palacios Cuenca, William Milliken, Joana Ricardo, Gabriela Lopez-Gonzalez, Edwin Pos, Hans Ter Steege
Species distribution models (SDMs) are widely used in ecology and conservation. Presence-only SDMs such as MaxEnt frequently use natural history collections (NHCs) as occurrence data, given their huge numbers and accessibility. NHCs are often spatially biased which may generate inaccuracies in SDMs. Here, we test how the distribution of NHCs and MaxEnt predictions relates to a spatial abundance model, based on a large plot dataset for Amazonian tree species, using inverse distance weighting (IDW). We also propose a new pipeline to deal with inconsistencies in NHCs and to limit the area of occupancy of the species...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29342184/species-delimitation-in-the-stenocereus-griseus-cactaceae-species-complex-reveals-a-new-species-s-huastecorum
#8
Hernán Alvarado-Sizzo, Alejandro Casas, Fabiola Parra, Hilda Julieta Arreola-Nava, Teresa Terrazas, Cristian Sánchez
The Stenocereus griseus species complex (SGSC) has long been considered taxonomically challenging because the number of taxa belonging to the complex and their geographical boundaries remain poorly understood. Bayesian clustering and genetic distance-based methods were used based on nine microsatellite loci in 377 individuals of three main putative species of the complex. The resulting genetic clusters were assessed for ecological niche divergence and areolar morphology, particularly spination patterns. We based our species boundaries on concordance between genetic, ecological, and morphological data, and were able to resolve four species, three of them corresponding to S...
2018: PloS One
https://www.readbyqxmd.com/read/29341964/renal-decapsulation-prevents-intrinsic-renal-compartment-syndrome-in-ischemia-reperfusion-induced-acute-kidney-injury-a-physiologic-approach
#9
Pablo Cruces, Pablo Lillo, Camila Salas, Tatiana Salomon, Felipe Lillo, Carlos González, Alejandro Pacheco, Daniel E Hurtado
OBJECTIVES: Acute kidney injury is a serious complication with unacceptably high mortality that lacks of specific curative treatment. Therapies focusing on the hydraulic behavior have shown promising results in preventing structural and functional renal impairment, but the underlying mechanisms remain understudied. Our goal is to assess the effects of renal decapsulation on regional hemodynamics, oxygenation, and perfusion in an ischemic acute kidney injury experimental model. METHODS: In piglets, intra renal pressure, renal tissue oxygen pressure, and dysoxia markers were measured in an ischemia-reperfusion group with intact kidney, an ischemia-reperfusion group where the kidney capsule was removed, and in a sham group...
February 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29341623/is-subsurface-oxygen-necessary-for-the-electrochemical-reduction-of-co2-on-copper
#10
Alejandro Garza, Alexis T Bell, Martin Head-Gordon
It has recently been proposed that subsurface oxygen is crucial for the adsorption and subsequent electroreduction of CO2 on copper. Using density functional theory, we have studied the stability and diffusion of subsurface oxygen in single crystals of copper exposing (111) and (100) facets. Oxygen is at least 1.5 eV more stable on the surface than beneath it for both crystal orientations; interstitial sites are too small to accommodate oxygen. The rate of atomic oxygen diffusion from one layer below a Cu(111) surface to the surface is 5 × 103 s-1...
January 17, 2018: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/29341616/stochasticity-of-pores-interconnectivity-in-li-o2-batteries-and-its-impact-on-the-variations-in-electrochemical-performance
#11
Amangeldi Torayev, José Alexis Rucci, Pieter M Magusin, Arnaud Demortiere, Vincent De Andrade, Clare P Grey, Céline Merlet, Alejandro A Franco
While large dispersions in electrochemical performance have been reported for lithium oxygen batteries in the literature, they have not been investigated in any depth. The variability in the results is often assumed to arise from differences in cell design, electrode structure, handling and cell preparation at different times. An accurate theoretical framework turns out to be needed to get a better insight into the mechanisms underneath and to interpreting experimental results. Here, we develop and use a pore network model to simulate the electrochemical performance of three-dimensionally resolved lithium-oxygen cathode mesostructures obtained from TXM nano-computed tomography images...
January 17, 2018: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/29340443/-gender-performativity-medicalization-and-health-in-transsexual-women-in-mexico-city
#12
José Arturo Granados Cosme, Pedro Alberto Hernández Ramírez, Omar Alejandro Olvera Muñoz
The World Health Organization and the American Psychological Association consider transsexuality a pathology and suggest sex-gender reassignment for the biopsychic adjustment of trans people. Through the discursive analysis of experience, this study describes the processes of medicalization and gender performativity in relation to the health of a group of trans women from Mexico City. For this purpose, a qualitative study was conducted in which 10 semi-structured interviews were carried out in 2015. As part of medicalization, the pathologization of transsexuality generated psychic suffering; on the other hand, sex-gender reassignment also entailed additional risks...
October 2017: Salud Colectiva
https://www.readbyqxmd.com/read/29340133/a-regional-assessment-of-white-tailed-deer-effects-on-plant-invasion
#13
Kristine M Averill, David A Mortensen, Erica A H Smithwick, Susan Kalisz, William J McShea, Norman A Bourg, John D Parker, Alejandro A Royo, Marc D Abrams, David K Apsley, Bernd Blossey, Douglas H Boucher, Kai L Caraher, Antonio DiTommaso, Sarah E Johnson, Robert Masson, Victoria A Nuzzo
Herbivores can profoundly influence plant species assembly, including plant invasion, and resulting community composition. Population increases of native herbivores, e.g. white-tailed deer (Odocoileus virginianus), combined with burgeoning plant invasions raise concerns for native plant diversity and forest regeneration. While individual researchers typically test for the impact of deer on plant invasion at a few sites, the overarching influence of deer on plant invasion across regional scales is unclear. We tested the effects of deer on the abundance and diversity of introduced and native herbaceous and woody plants across 23 white-tailed deer research sites distributed across the east-central and north-eastern USA and representing a wide range of deer densities and invasive plant abundance and identity...
February 2018: AoB Plants
https://www.readbyqxmd.com/read/29340131/acute-myeloid-leukemia-genetic-alterations-and-their-clinical-prognosis
#14
REVIEW
Francisco Alejandro Lagunas-Rangel, Venice Chávez-Valencia, Miguel Ángel Gómez-Guijosa, Carlos Cortes-Penagos
Acute myeloid leukemia (AML) is a group of hematological diseases, phenotypic and genetically heterogeneous, characterized by abnormal accumulation of blast cells in the bone marrows and peripheral blood. Its incidence rate is approximately 1.5 per 100,000 in infants younger than 1 year of age and 25 per 100,000 persons in octogenarians. Traditionally, cytogenetic markers are used to stratify patients in three risk categories: favorable, intermediate and unfavorable. However, the forecast stratification and the treatment decision for patients with normal karyotype shows difficulties due to the high clinical heterogeneity...
October 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/29339451/inhibition-of-5%C3%AE-reductase-alters-pregnane-metabolism-in-the-late-pregnant-mare
#15
Michelle Wynn, Barry A Ball, Erin Lea Legacki, Alan Conley, Shavahn Loux, John May, Alejandro Esteller-Vico, Scott D Stanley, Kirsten Scoggin, Edward L Squires, Mats Ht Troedsson
In the latter half of gestation in the mare, progesterone concentrations decline to near undetectable levels while other 5α-reduced pregnanes are elevated. Of these, 5α-dihydroprogesterone and allopregnanolone have been reported to have important roles in either pregnancy maintenance or fetal quiescence. During this time, the placenta is necessary for pregnane metabolism, with the enzyme 5α-reductase being required for the conversion of progesterone to 5α-dihydroprogesterone. The objectives of this study were to assess the effects of a 5α-reductase inhibitor, dutasteride, on pregnane metabolism (pregnenolone, progesterone, 5α-dihydroprogesterone, 20α-hydroxy-5α-pregnan-3-one, 5α-pregnane-3β,20α-diol, and allopregnanolone), to determine circulating dutasteride concentrations, and to assess effects of dutasteride treatment on gestational parameters...
January 16, 2018: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/29339376/tumor-immunity-and-survival-as-a-function-of-alternative-neopeptides-in-human-cancer
#16
Andrew J Rech, David Balli, Alejandro Mantero, Hemant Ishwaran, Katherine L Nathanson, Ben Z Stanger, Robert H Vonderheide
The immune system exerts antitumor activity via T cell-dependent recognition of tumor-specific antigens. Although the number of tumor neopeptides - peptides derived from somatic mutations - often correlates with immune activity and survival, most classically defined high-affinity neopeptides (CDNs) are not immunogenic, and only rare CDNs have been linked to tumor rejection. Thus, the rules of tumor antigen recognition remain incompletely understood. Here, we analyzed neopeptides, immune activity, and clinical outcome from 6,324 patients across 27 tumor types...
January 16, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29339046/stereotactic-body-radiation-therapy-sbrt-for-high-risk-prostate-cancer-where-are-we-now
#17
REVIEW
Alejandro Gonzalez-Motta, Mack Roach
PURPOSE: Stereotactic body radiation therapy (SBRT) is increasingly being used for the management of localized prostate cancer. This trend combined with declining use of brachytherapy (BT) has pushed issues and questions regarding the use of SBRT to the forefront. A systematic literature review was conducted to review the current evidence of biochemical disease-free survival (bDFS) and toxicity of SBRT in high-risk (HR) prostate cancer. METHODS AND MATERIALS: A search was carried out on the PubMed and Embase databases...
December 2, 2017: Practical Radiation Oncology
https://www.readbyqxmd.com/read/29338891/gray-and-white-matter-changes-and-their-relation-to-illness-trajectory-in-first-episode-psychosis
#18
Alejandro Keymer-Gausset, Anna Alonso-Solís, Iluminada Corripio, Rosa B Sauras-Quetcuti, Edith Pomarol-Clotet, Erick J Canales-Rodriguez, Eva Grasa-Bello, Enric Álvarez, Maria J Portella
Previous works have studied structural brain characteristics in first-episode psychosis (FEP), but few have focused on the relation between brain differences and illness trajectories. The aim of this study is to analyze gray and white matter changes in FEP patients and their relation with one-year clinical outcomes. A sample of 41 FEP patients and 41 healthy controls (HC), matched by age and educational level was scanned with a 3T MRI during the first month of illness onset. One year later, patients were assigned to two illness trajectories (schizophrenia and non-schizophrenia)...
January 12, 2018: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29338574/protein-nanoparticles-are-nontoxic-tuneable-cell-stressors
#19
Marianna Teixeira de Pinho Favaro, Laura Sánchez-García, Alejandro Sánchez-Chardi, Mónica Roldán, Ugutz Unzueta, Naroa Serna, Olivia Cano-Garrido, Adriano Rodrigues Azzoni, Neus Ferrer-Miralles, Antonio Villaverde, Esther Vázquez
AIM: Nanoparticle-cell interactions can promote cell toxicity and stimulate particular behavioral patterns, but cell responses to protein nanomaterials have been poorly studied. RESULTS: By repositioning oligomerization domains in a simple, modular self-assembling protein platform, we have generated closely related but distinguishable homomeric nanoparticles. Composed by building blocks with modular domains arranged in different order, they share amino acid composition...
January 17, 2018: Nanomedicine
https://www.readbyqxmd.com/read/29338324/effect-of-vertical-or-beveled-chondral-defect-creation-on-rim-deformation-and-contact
#20
Adam B Yanke, Megan L Konopka, Davietta C Butty, Maximilian A Meyer, Eric J Cotter, Alejandro A Espinoza, Brian J Cole
Objective To determine biomechanical effects of knee cartilage defect perimeter morphology based on cartilage strain and opposing subchondral bone contact. Design Articular cartilage defects were created in 5 bovine femoral condyles: group 1, 45° inner bevel with 8-mm rim; group 2, vertical with 8-mm rim; and group 3, 45° outer bevel with 8-mm base. Samples were placed into a custom-machined micro-computed tomography tube and subjected to 800 N of axial loading. DICOM data were used to calculate cartilage thickness 4 and 6 mm from the center, distance between tibial cartilage surface and femoral subchondral bone, and contact width between tibial cartilage and subchondral bone...
January 1, 2018: Cartilage
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