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https://www.readbyqxmd.com/read/27925594/a-memetic-algorithm-for-3-d-protein-structure-prediction-problem
#1
Leonardo Correa, Bruno Borguesan, Camilo Farfan, Mario Inostroza-Ponta, Marcio Dorn
Memetic Algorithms are population-based metaheuristics intrinsically concerned with exploiting all available knowledge about the problem under study. The incorporation of problem domain knowledge is not an optional mechanism, but a fundamental feature of the Memetic Algorithms. In this paper, we present a Memetic Algorithm to tackle the three-dimensional protein structure prediction problem. The method uses a structured population and incorporates a Simulated Annealing algorithm as a local search strategy, as well as ad-hoc crossover and mutation operators to deal with the problem...
December 2, 2016: IEEE/ACM Transactions on Computational Biology and Bioinformatics
https://www.readbyqxmd.com/read/27925117/continued-use-of-drugs-and-working-conditions-among-truck-drivers
#2
Edmarlon Girotto, Camilo Molino Guidoni, Alberto Durán González, Arthur Eumann Mesas, Selma Maffei de Andrade
Few studies have been conducted on truck drivers with regard to their health problems, especially their drug consumption profile. This study aimed to determine the continuous use of drugs and to identify use-related professional characteristics among this category. A cross-sectional study was carried out with truck drivers parked at the sorting yard of the, Port of Paranaguá, Paraná. An interview to obtain socioeconomic data, data on health problems, working conditions and continued use of medication was performed...
December 2016: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/27918979/laparoscopic-treatment-of-retroperitoneal-cystic-mesothelioma-two-cases-reported
#3
Sonia Morales Artero, Camilo J Castellón Pavón, Elena Larraz Mora, José María de Jaime Guijarro, Carlos García Vásquez, Montserrat Calvo Serrano
Retroperitoneal cystic mesothelioma is a very rare lesion. The pathogeny is unclear and establishing a preoperative diagnosis versus others retroperitoneal cystic lesions is difficult. Thus, with increasing experience in laparoscopic retroperitoneal surgery, the use of this approach for exploration of a retroperitoneal mass of unknown origin may provide an alternative to classic open surgery and all the benefits of laparoscopy. We present two cases treated laparoscopycally and review the literature.
November 17, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27916447/portal-vein-gas-secondary-to-acute-non-obstructive-gastric-dilatation
#4
Sonia Morales Artero, Camilo J Castellón Pavón, Pablo Cereceda Barbero, Cristina Pérez Algar, Elena Larraz Mora
No abstract text is available yet for this article.
December 1, 2016: Gastroenterología y Hepatología
https://www.readbyqxmd.com/read/27905820/evidence-based-validation-of-quorum-quenching-from-lysinibacillus-sphaericus-and-geobacillus-sp-in-bioremediation-of-oil-sludge
#5
Camilo Gómez-Garzón, Jenny Dussán
Many studies on quorum quenching focus on the discovery and characterization of novel acyl-homoserine lactonases (AHL-lactonases) because these enzymes could be used in the control of diseases caused by Gram-negative bacteria. The effects of quorum quenching are also remarkable in the performance of bacterial consortia in applications such as bioremediation. In the current work, we demonstrated the presence of a potential novel AHL-lactonase-encoding locus (Bsph_3377) from Lysinibacillus sphaericus and Geobacillus sp...
September 1, 2016: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/27905143/characterization-of-adverse-drug-reactions-causing-admission-to-an-intensive-care-unit
#6
Camilo Rojas-Velandia, Jair Ruiz-Garzón, Juan-Carlos Moscoso-Alcina, Álvaro Vallejos-Narvaéz, Jenny Castro-Canoa, Yuri Bustos-Martínez, Max Flórez-Cutiva, Mabel Contreras-Muñoz, Jully-Carolina Gómez-Gil, Carlos-Alberto Calderón-Ospina
AIM: This study aimed to determine the occurrence of adverse drug reactions (ADRs) that caused admission to the intensive care unit (ICU) of a university hospital. METHODS: Clinical records were reviewed for patients meeting the inclusion criteria who were admitted to the ICU between September and December 2012. Suspected cases of adverse drug reactions (ADR) were documented. Nine researchers later evaluated causality using the Naranjo Algorithm, preventability using the Schumock and Thornton criteria, and clinical classification based on the dose-time-susceptibility (DoTS) system...
December 1, 2016: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27903288/untangling-the-transmission-dynamics-of-primary-and-secondary-vectors-of-trypanosoma-cruzi-in-colombia-parasite-infection-feeding-sources-and-discrete-typing-units
#7
Carolina Hernández, Camilo Salazar, Helena Brochero, Aníbal Teherán, Luz Stella Buitrago, Mauricio Vera, Hugo Soto, Zulibeth Florez-Rivadeneira, Sussane Ardila, Gabriel Parra-Henao, Juan David Ramírez
BACKGROUND: Trypanosoma cruzi is the causative agent of Chagas disease. Due to its genetic diversity has been classified into six Discrete Typing Units (DTUs) in association with transmission cycles. In Colombia, natural T. cruzi infection has been detected in 15 triatomine species. There is scarce information regarding the infection rates, DTUs and feeding preferences of secondary vectors. Therefore, the aim of this study was to determine T. cruzi infection rates, parasite DTU, ecotopes, insect stages, geographical location and bug feeding preferences across six different triatomine species...
December 1, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27903056/spatial-pattern-evolution-of-aedes-aegypti-breeding-sites-in-an-argentinean-city-without-a-dengue-vector-control-programme
#8
Manuel O Espinosa, Francisco Polop, Camilo H Rotela, Marcelo Abril, Carlos M Scavuzzo
The main objective of this study was to obtain and analyse the space-time dynamics of Aedes aegypti breeding sites in Clorinda City, Formosa Province, Argentina coupled with landscape analysis using the maximum entropy approach in order to generate a dengue vector niche model. In urban areas, without vector control activities, 12 entomologic (larval) samplings were performed during three years (October 2011 to October 2014). The entomologic surveillance area represented 16,511 houses. Predictive models for Aedes distribution were developed using vector breeding abundance data, density analysis, clustering and geoprocessing techniques coupled with Earth observation satellite data...
November 21, 2016: Geospatial Health
https://www.readbyqxmd.com/read/27902495/methodological-evaluation-of-the-noninvasive-estimation-of-central-systolic-blood-pressure-in-nontreated-patients-the-bogalusa-heart-study
#9
Camilo Fernandez, Robert Hsu, Gary Sander, Azad Hussain, Rupert Barshop, Shengxu Li, Tian Shu, Tao Zhang, Patrycja Galazka, Wei Chen, Lydia Bazzano, Thomas D Giles
OBJECTIVES: This study sought to compare the estimation of central systolic blood pressure (cSBP) obtained by two different noninvasive devices, in addition to its comparisons with measured peripheral systolic blood pressure (pSBP), in a biracial (Black/White) community-based cohort. PARTICIPANTS AND METHODS: Estimations of cSBP by applanation tonometry were obtained in 586 participants of the Bogalusa Heart Study (mean age: 43.5 years; 69% White, 54% women) using two different commonly used instruments: Omron HEM-9000AI and SphygmoCor CPV...
November 29, 2016: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/27891278/becker-s-nevus-syndrome-in-a-pediatric-female-patient
#10
Sara Hernandez-Quiceno, Esteban Uribe-Bojanini, Juan Jose Ramírez-Jiménez, Maria Victoria Lopera-Cañaveral, Martin Toro-Ramos, Yuri Usuga-Arcila, Luis Correa-Londoño, Juan Camilo Martinez, Jennifer Monroy, Juan Manuel Alfaro
Becker's nevus syndrome is part of the epidermal nevus syndromes and has been described with a phenotype that includes Becker's nevus, ipsilateral breast hypoplasia, and variable skeletal malformations. It is more frequent in males than in females (5 : 1) but is more relevant in females. The diagnosis is clinically based and the skin lesion must be present and no other numbered criteria have been established, but with more criteria being present the possibility of the diagnosis is higher. Regarding the treatment of breast hypoplasia, the use of antiandrogen medication has demonstrated adequate clinical response in a dose of 50 mg/day of spironolactone...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27889469/changes-in-neural-circuitry-associated-with-depression-at-pre-clinical-pre-motor-and-early-motor-phases-of-parkinson-s-disease
#11
REVIEW
Janina Borgonovo, Camilo Allende-Castro, Almudena Laliena, Néstor Guerrero, Hernán Silva, Miguel L Concha
Although Parkinson's Disease (PD) is mostly considered a motor disorder, it can present at early stages as a non-motor pathology. Among the non-motor clinical manifestations, depression shows a high prevalence and can be one of the first clinical signs to appear, even a decade before the onset of motor symptoms. Here, we review the evidence of early dysfunction in neural circuitry associated with depression in the context of PD, focusing on pre-clinical, pre-motor and early motor phases of the disease. In the pre-clinical phase, structural and functional changes in the substantia nigra, basal ganglia and limbic structures are already observed...
November 21, 2016: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/27886174/5-hydroxymethylcytosine-localizes-to-enhancer-elements-and-is-associated-with-survival-in-glioblastoma-patients
#12
Kevin C Johnson, E Andres Houseman, Jessica E King, Katharine M von Herrmann, Camilo E Fadul, Brock C Christensen
Glioblastomas exhibit widespread molecular alterations including a highly distorted epigenome. Here, we resolve genome-wide 5-methylcytosine and 5-hydroxymethylcytosine in glioblastoma through parallel processing of DNA with bisulfite and oxidative bisulfite treatments. We apply a statistical algorithm to estimate 5-methylcytosine, 5-hydroxymethylcytosine and unmethylated proportions from methylation array data. We show that 5-hydroxymethylcytosine is depleted in glioblastoma compared with prefrontal cortex tissue...
November 25, 2016: Nature Communications
https://www.readbyqxmd.com/read/27879518/three-month-evaluation-of-strut-healing-using-a-novel-optical-coherence-tomography-analytical-method-following-bioresorbable-polymer-everolimus-eluting-stent-implantation-in-humans-the-timeless-study
#13
Boris Vesga, Hector Hernandez, Miguel Moncada, Pawel Gasior, Sergio A H Leal, Antonio Dager, Camilo Arana, Juan A Delgado, Philippe Généreux, Akiko Maehara, Juan F Granada
AIMS: Bioresorbable polymer drug-eluting stent technologies have been considered to have the potential to enhance vascular healing by reducing polymer exposure to the vessel wall, potentially allowing the earlier discontinuation of dual antiplatelet therapy. At present, the early vascular healing response to this type of technologies is still unclear. PATIENTS AND METHODS: The TIMELESS study is a multicenter, prospective, single-arm study that enrolled real-world patients undergoing percutaneous coronary intervention...
November 22, 2016: Coronary Artery Disease
https://www.readbyqxmd.com/read/27874971/cefiderocol-a-siderophore-cephalosporin-for-gram-negative-bacterial-infections-pharmacokinetics-and-safety-in-subjects-with-renal-impairment
#14
Takayuki Katsube, Roger Echols, Juan Camilo Arjona Ferreira, Heidi K Krenz, Jolene Kay Berg, Christopher Galloway
Cefiderocol, a new injectable siderophore cephalosporin antibiotic, has promising in vitro and in vivo activity against Gram-negative bacteria including multidrug-resistant Pseudomonas aeruginosa, Acinetobacter baumannii, and Klebsiella pneumoniae. Cefiderocol is mainly renally eliminated. The pharmacokinetics and safety of cefiderocol in subjects with renal impairment were assessed following a single 1000-mg intravenous 1-hour infusion of cefiderocol. Subjects with mild, moderate, or severe renal impairment and end-stage renal disease (ESRD) requiring hemodialysis were compared with demographically (age, body mass index, and sex) matched healthy subjects with normal renal function...
November 22, 2016: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27864964/no-evidence-that-boron-influences-tree-species-distributions-in-lowland-tropical-forests-of-panama
#15
Benjamin L Turner, Paul-Camilo Zalamea, Richard Condit, Klaus Winter, S Joseph Wright, James W Dalling
It was recently proposed that boron might be the most important nutrient structuring tree species distributions in tropical forests. Here we combine observational and experimental studies to test this hypothesis for lowland tropical forests of Panama. Plant-available boron is uniformly low in tropical forest soils of Panama and is not significantly associated with any of the > 500 species in a regional network of forest dynamics plots. Experimental manipulation of boron supply to seedlings of three tropical tree species revealed no evidence of boron deficiency or toxicity at concentrations likely to occur in tropical forest soils...
November 16, 2016: New Phytologist
https://www.readbyqxmd.com/read/27864369/structures-of-the-multidrug-transporter-p-glycoprotein-reveal-asymmetric-atp-binding-and-the-mechanism-of-polyspecificity
#16
Lothar Esser, Fei Zhou, Kristen M Pluchino, Joseph Shiloach, Jichun Ma, Wai-Kwan Tang, Camilo Gutierrez, Alex Zhang, Suneet Shukla, James P Madigan, Tongqing Zhou, Peter D Kwong, Suresh V Ambudkar, Michael M Gottesman, Di Xia
P-glycoprotein (P-gp) is a polyspecific ATP-dependent transporter linked to multidrug resistance in cancer; it plays important roles in determining the pharmacokinetics of many drugs. Understanding the structural basis of P-gp substrate polyspecificity has been hampered by its intrinsic flexibility, which is facilitated by a 75-residue linker that connects the two halves of P-gp. Here we constructed a mutant murine P-gp with a shortened linker to facilitate structure determination. Despite dramatic reduction in rhodamine 123 and calcein-AM transport, the linker-shortened mutant P- gp possesses basal ATPase activity and binds ATP only in its N-terminal nucleotide-binding domain...
November 18, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27862577/crossover-comparison-of-ferumoxytol-and-gadobenate-dimeglumine-for-abdominal-mr-angiography-at-3-0-tesla-effects-of-contrast-bolus-length-and-flip-angle
#17
Tilman Schubert, Utaroh Motosugi, Sonja Kinner, Timothy J Colgan, Samir D Sharma, Scott Hetzel, Shane Wells, Camilo A Campo, Scott B Reeder
PURPOSE: Ferumoxytol (FE) has gained interest as an alternative to gadolinium-based contrast agents (GBCAs). The purpose of this study was to evaluate and optimize ferumoxytol dose and T1 weighting, in comparison to a conventional GBCA. MATERIALS AND METHODS: Twelve healthy volunteers (six women / six men, mean age 44.3 years) were recruited for this study. Scanning was performed on a clinical 3 Tesla (T) MRI system. Gadobenate dimeglumine (GD)-enhanced MRA was performed followed by FE-enhanced MRA 1 month later...
November 10, 2016: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/27846577/the-broad-footprint-of-climate-change-from-genes-to-biomes-to-people
#18
REVIEW
Brett R Scheffers, Luc De Meester, Tom C L Bridge, Ary A Hoffmann, John M Pandolfi, Richard T Corlett, Stuart H M Butchart, Paul Pearce-Kelly, Kit M Kovacs, David Dudgeon, Michela Pacifici, Carlo Rondinini, Wendy B Foden, Tara G Martin, Camilo Mora, David Bickford, James E M Watson
Most ecological processes now show responses to anthropogenic climate change. In terrestrial, freshwater, and marine ecosystems, species are changing genetically, physiologically, morphologically, and phenologically and are shifting their distributions, which affects food webs and results in new interactions. Disruptions scale from the gene to the ecosystem and have documented consequences for people, including unpredictable fisheries and crop yields, loss of genetic diversity in wild crop varieties, and increasing impacts of pests and diseases...
November 11, 2016: Science
https://www.readbyqxmd.com/read/27828614/hiv-prevalence-in-children-and-youth-living-on-the-street-and-subject-to-commercial-sexual-exploitation-a-systematic-review
#19
Camilo Noreña-Herrera, Carlos Alberto Rojas, Lizeth Cruz-Jiménez
The aim of this review was to describe HIV prevalence in children and youth living on the street and subject to commercial sexual exploitation, and the studies' characteristics in terms of place, time, population, and sample design. This was a systematic review, not a meta-analysis, based on an article search in 10 electronic databases: Science Direct, MEDLINE, OVID, LILACS, Wiley InterScience, MD Consult, Springer Link, Embase, Web of Science, and Ebsco. A complementary search was also performed in the libraries of schools of public health and webpages of U...
November 3, 2016: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/27825538/-implementing-evidence-and-implementation-research-two-different-and-prime-realities
#20
José María Rumbo Prieto, Ángel Alfredo Martínez Ques, María Sobrido Prieto, Camilo Daniel Raña Lama, Miriam Vázquez Campo, Beatriz Braña Marcos
Scientific research can contribute to more efficient health care, enhance care quality and safety of persons. In order for this to happen, the knowledge gained must be put into practice. Implementation is known as the introduction of a change or innovation to daily practice, which requires effective communication and the elimination of barriers that hinder this process. Best practice implementation experiences are being used increasingly in the field of nursing. The difficulty in identifying the factors that indicate the success or failure of implementation has led to increased studies to build a body of differentiated knowledge, recognized as implementation science or implementation research...
November 4, 2016: Enfermería Clínica
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