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https://www.readbyqxmd.com/read/28636616/temnothorax-rugatulus-ant-colonies-consistently-vary-in-nest-structure-across-time-and-context
#1
Nicholas DiRienzo, Anna Dornhaus
A host of animals build architectural constructions. Such constructions frequently vary with environmental and individual/colony conditions, and their architecture directly influences behavior and fitness. The nests of ant colonies drive and enable many of their collective behaviors, and as such are part of their 'extended phenotype'. Since ant colonies have been recently shown to differ in behavior and life history strategy, we ask whether colonies differ in another trait: the architecture of the constructions they create...
2017: PloS One
https://www.readbyqxmd.com/read/28635968/sex-biased-dispersal-creates-spatial-genetic-structure-in-a-parthenogenetic-ant-with-a-dependent-lineage-reproductive-system
#2
A Kuhn, D Bauman, H Darras, S Aron
Reproduction and dispersal are key aspects of species life history that influence spatial genetic structure in populations. Several ant species in the genus Cataglyphis have evolved a unique breeding system in which new reproductives (that is, queens and males) are produced asexually by parthenogenesis; in contrast, non-reproductives (that is, workers) are produced via sexual reproduction by mates from distinct genetic lineages. We investigated how these two coexisting reproductive methods affect population-level spatial genetic structure using the ant Cataglyphis mauritanica as a model...
June 21, 2017: Heredity
https://www.readbyqxmd.com/read/28635186/catheter-ablation-of-atrial-fibrillation-with-box-isolation-of-fibrotic-areas-lessons-on-fibrosis-distribution-and-extent-clinical-characteristics-and-their-impact-on-long-term-outcome
#3
Doreen Schreiber, Andreas Rieger, Fabian Moser, Hans Kottkamp
INTRODUCTION: The BIFA concept (box isolation of fibrotic areas) supplementing pulmonary vein isolation (PVI) was implemented in atrial fibrillation (AF) patients with fibrotic atrial cardiomyopathy (FACM) to improve catheter ablation outcomes. METHODS AND RESULTS: 92 patients with FACM underwent PVI+BIFA. We investigated patient characteristics (58 persistent/34 paroxysmal,68±8y,LA 44±7mm,CHA2 DS2 -VASc 2.6±1.3,FACM I:15.2%,II:53.3%,III:26.1%,IV:5.4%), periprocedural data concerning fibrosis extent/distribution and their impact on outcome...
June 21, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28634595/role-of-repeat-muscle-compartment-pressure-measurements-in-chronic-exertional-compartment-syndrome-of-the-lower-leg
#4
Aniek P M van Zantvoort, Johan A de Bruijn, Michiel B Winkes, Adwin R Hoogeveen, Joep A W Teijink, Marc R Scheltinga
BACKGROUND: The diagnostic gold standard for diagnosing chronic exertional compartment syndrome (CECS) is a dynamic intracompartmental pressure (ICP) measurement of the muscle. The potential role of a repeat ICP (re-ICP) measurement in patients with persistent lower leg symptoms after surgical decompression or with ongoing symptoms after an earlier normal ICP is unknown. PURPOSE: To study whether re-ICP measurements in patients with persistent CECS-like symptoms of the lower leg may contribute to the diagnosis of CECS after both surgical decompression and a previously normal ICP measurement...
June 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28633407/exploring-fungus-plant-n-transfer-in-a-tripartite-ant-plant-fungus-mutualism
#5
Céline Leroy, Alain Jauneau, Yves Martinez, Armelle Cabin-Flaman, David Gibouin, Jérôme Orivel, Nathalie Séjalon-Delmas
Background and Aims: The plant Hirtella physophora , the ant Allomerus decemarticulatus and a fungus, Trimmatostroma sp., form a tripartite association. The ants manipulate both the plant trichomes and the fungus to build galleries under the stems of their host plant used to capture prey. In addition to its structural role, the fungus also improves nutrient uptake by the host plant. But it still remains unclear whether the fungus plays an indirect or a direct role in transferring nutrients to the plant...
June 13, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28631826/effects-of-dietary-supplementation-of-red-pepper-schinus-terebinthifolius-raddi-essential-oil-on-performance-small-intestinal-morphology-and-microbial-counts-of-weanling-pigs
#6
Pedro Leon Gomes Cairo, Franz Dias Gois, Maicon Sbardella, Hebert Silveira, Roberto Maciel de Oliveira, Ivan Bezerra Allaman, Vinicius Souza Cantarelli, Leandro Batista Costa
BACKGROUND: Many strategies have been developed to improve intestinal health and performance of newly weaned piglets as the antibiotic growth promoters. Natural products such as essential oils have been scientifically recognized as growth enhancer feed additives for weanling pigs, replacing the antibiotics. Therefore, it has been hypothesized that Brazilian red pepper could replace performance-enhancing antibiotics also in weanling pig diets. However, one experiment was conducted to determine the effects of dietary Brazilian red pepper essential oil or antimicrobial growth promoter on intestinal health and growth performance of weanling pigs...
June 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28629742/statistical-differences-in-the-white-matter-tracts-in-subjects-with-depression-by-using-different-skeletonized-voxel-wise-analysis-approaches-and-dti-fitting-procedures
#7
Maurizio Bergamino, Madison Farmer, Hung-Wen Yeh, Elisabeth Paul, J Paul Hamilton
Major depressive disorder (MDD) is one of the most significant contributors to the global burden of illness. Diffusion tensor imaging (DTI) is a procedure that has been used in several studies to characterize abnormalities in white matter (WM) microstructural integrity in MDD. These studies, however, have provided divergent findings, potentially due to the large variety of methodological alternatives available in conducting DTI research. In order to determine the importance of different approaches to coregistration of DTI-derived metrics to a standard space, we compared results from two different skeletonized voxel-wise analysis approaches: the standard TBBS pipeline and the Advanced Normalization Tools (ANTs) approach incorporating a symmetric image normalization (SyN) algorithm and a group-wise template (ANTs TBSS)...
June 16, 2017: Brain Research
https://www.readbyqxmd.com/read/28628578/neuraxial-anesthesia-in-obstetric-patients-receiving-thromboprophylaxis-with-unfractionated-or-low-molecular-weight-heparin-a-systematic-review-of-spinal-epidural-hematoma
#8
Lisa R Leffert, Heloise M Dubois, Alexander J Butwick, Brendan Carvalho, Timothy T Houle, Ruth Landau
Venous thromboembolism remains a major source of morbidity and mortality in obstetrics with an incidence of 29.8/100,000 vaginal delivery hospitalizations; cesarean delivery confers a 4-fold increased risk of thromboembolism when compared with vaginal delivery. Revised national guidelines now stipulate that the majority of women delivering via cesarean and women at risk for ante- or postpartum venous thromboembolism receive mechanical or pharmacological thromboprophylaxis. This practice change has important implications for obstetric anesthesiologists concerned about the risk of spinal epidural hematoma (SEH) among anticoagulated women receiving neuraxial anesthesia...
July 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28627184/implementaci%C3%A3-n-de-una-v%C3%A3-a-cl%C3%A3-nica-de-prescripci%C3%A3-n-de-nutrici%C3%A3-n-enteral-domiciliaria-de-murcia-perfiles-y-caracter%C3%A3-sticas-muestrales
#9
Mercedes Ferrer Gómez, Juan Francisco Sánchez Romera, María Victoria García Zafra, José Ramón Cuenca Sánchez, Ana Belén Hernández Cascales, Ana Aranda García, Víctor José Rausell Rausell, Antonio Miguel Hernández Martínez
Introducción: el escenario de la nutrición enteral domiciliaria (NED) en Murcia, antes de 2010, estaba caracterizado por la gran variabilidad en la consideración del paciente subsidiario de dicha prestación, así como por el elevado consumo respecto a otras comunidades autónomas.Objetivos: desarrollar y describir la implementación de una vía clínica de asistencia al paciente subsidiario de NED y analizar el perfil de los pacientes y las características del soporte nutricional.Método: puesta en marcha de la vía clínica en el Área I de salud del Servicio Murciano de Salud (SMS)...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28627182/factores-predictores-de-hipertrigliceridemia-en-pacientes-hospitalizados-con-nutrici%C3%A3-n-parenteral-total
#10
Maria Julia Ocón Bretón, Ana Isabel Ilundain Gonzalez, Jara Altemir Trallero, Ana Agudo Tabuenca, José Antonio Gimeno Orna
Introducción:la nutrición parenteral total (NPT) es una modalidad de soporte nutricional indicada en aquellas situaciones donde el enfermo no puede cubrir sus requerimientos nutricionales por vía enteral. A pesar de ser una terapia segura y efi caz, no está exenta de complicaciones, entre las que cabe destacar, por su frecuencia, la hipertrigliceridemia. La etiología de esta complicación metabólica es compleja y multifactorial.Objetivos: el objetivo de este trabajo fue determinar los factores de riesgo asociados al desarrollo de hipertrigliceridemia en pacientes adultos hospitalizados no críticos que reciben NPT a corto plazo y evaluar el efecto que una emulsión lipídica enriquecida en ácidos grasos poliinsaturados omega-3 ejerce sobre esta complicación metabólica...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28627061/glycaemic-and-insulinaemic-responses-of-adult-healthy-warm-blooded-mares-following-feeding-with-jerusalem-artichoke-meal
#11
M Glatter, M Bochnia, F Goetz, J Gottschalk, G Koeller, N Mielenz, D Hillegeist, J M Greef, A Einspanier, A Zeyner
This study aimed to investigate the impact of the supplementation of a pre-biotic compound [Jerusalem artichoke meal (JAM)] on the glycaemic and insulinaemic response in healthy, non-obese warm-blooded horses. Six adult mares [mean body weight (bwt) 529 ± 38.7 kg; body condition score 5.1 ± 0.49/9] were used. In two equal meals per day, the horses received crushed oat grains (1 g starch/kg bwt per day) and meadow hay (2 kg/100 kg bwt per day) which together were likely to meet the energy recommendation for light work (GfE, )...
June 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28625342/dental-investigation-of-mummies-from-the-capuchin-catacombs-of-palermo-circa-18th-19th-century-ce
#12
R Seiler, D Piombino-Mascali, F Rühli
Within the framework of the Sicily Mummy Project, the orofacial complex of a significant sample of individuals (n=111) from the Capuchin Catacombs of Palermo, Italy, was inspected. The heads and dentitions of the mummies were documented and the recorded findings described: the state of preservation of skeletal and soft tissues; dental pathologies such as carious lesions and alveolar bone loss; enamel hypoplasia; and ante- and post-mortem tooth loss. Despite limitations in data collection, the oral health of these mummies was assessed and the frequencies of pathologies were compared to those of similar populations...
May 31, 2017: Homo: Internationale Zeitschrift Für die Vergleichende Forschung Am Menschen
https://www.readbyqxmd.com/read/28624394/reduced-foraging-investment-as-an-adaptation-to-patchy-food-sources-a-phasic-army-ant-simulation
#13
Serafino Teseo, Francesco Delloro
Colonies of several ant species within the subfamily Dorylinae alternate stereotypical discrete phases of foraging and reproduction. Such phasic cycles are thought to be adaptive because they minimize the amount of foraging and the related costs, and at the same time enhance the colony-level ability to rely on patchily distributed food sources. In order to investigate these hypotheses, we use here a simple computational approach to study the population dynamics of two species of virtual ant colonies that differ quantitatively in their foraging investment...
June 14, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28623426/comparative-physical-mapping-of-18s-rdna-in-the-karyotypes-of-six-leafcutter-ant-species-of-the-genera-atta-and-acromyrmex-formicidae-myrmicinae
#14
Gisele Amaro Teixeira, Luísa Antônia Campos Barros, Hilton Jeferson Alves Cardoso de Aguiar, Silvia das Graças Pompolo
Leafcutter ants of the Atta and Acromyrmex genera are important plagues in different cultures. Cytogenetic data on chromosome number, morphology, and chromosomal banding pattern are only available for 17 species of leafcutter ants. Molecular cytogenetic data for the detection of ribosomal genes by the FISH technique are scarce, and only 15 Neotropical ant species have been studied. This study aimed to physically map the 18S ribosomal RNA genes (rDNA) of six leafcutter ants belonging to the genera Atta and Acromyrmex using FISH...
June 16, 2017: Genetica
https://www.readbyqxmd.com/read/28623371/chemosensory-sensitivity-reflects-reproductive-status-in-the-ant-harpegnathos-saltator
#15
Majid Ghaninia, Kevin Haight, Shelley L Berger, Danny Reinberg, Laurence J Zwiebel, Anandasankar Ray, Jürgen Liebig
Insects communicate with pheromones using sensitive antennal sensilla. Although trace amounts of pheromones can be detected by many insects, context-dependent increased costs of high sensitivity might lead to plasticity in sensillum responsiveness. We have functionally characterized basiconic sensilla of the ant Harpegnathos saltator for responses to general odors in comparison to cuticular hydrocarbons which can act as fertility signals emitted by the principal reproductive(s) of a colony to inhibit reproduction by worker colony members...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28622680/optimized-multi-stable-stochastic-resonance-for-the-enhancement-of-pituitary-micoadenoma-in-mri
#16
Munendra Singh, Ashish Verma, Neeraj Sharma
Magnetic resonance imaging (MRI) is the modality of choice as far as imaging diagnosis of pathologies in the pituitary gland is concerned. Further, the advent of dynamic contrast enhanced (DCE) has enhanced the capability of this modality in detecting minute benign but endocrinologically significant tumors called microadenoma. These lesions are visible with difficulty and a low confidence level in routine MRI sequences, even after administration of intravenous gadolinium. Techniques to enhance the visualization of such foci would be an asset in improving the overall accuracy of DCE-MRI for detection of pituitary microadenomas...
June 13, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28621903/histological-assessment-of-%C3%AE-amyloid-precursor-protein-immunolabelled-rectal-biopsies-aids-diagnosis-of-equine-grass-sickness
#17
R C Jago, S Scholes, T S Mair, G R Pearson, R S Pirie, I Handel, E M Milne, F Coyle, B C McGorum
BACKGROUND: An accurate, minimally invasive, ante mortem, diagnostic test for equine grass sickness (EGS) is currently lacking. While histological examination of haematoxylin-eosin stained rectal biopsies for chromatolytic neurons is insensitive as a diagnostic test for EGS, we hypothesised that the diagnostic accuracy could be improved by immunolabelling for β-amyloid precursor protein (β-APP) which has increased expression in cranial cervical ganglia (CCG) neuronal perikarya in EGS...
June 16, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28620934/fairness-in-cost-benefit-analysis-a-methodology-for-health-technology-assessment
#18
Anne-Laure Samson, Erik Schokkaert, Clémence Thébaut, Brigitte Dormont, Marc Fleurbaey, Stéphane Luchini, Carine Van de Voorde
We evaluate the introduction of various forms of antihypertensive treatments in France with a distribution-sensitive cost-benefit analysis. Compared to traditional cost-benefit analysis, we implement distributional weighting based on equivalent incomes, a new concept of individual well-being that does respect individual preferences but is not subjectively welfarist. Individual preferences are estimated on the basis of a contingent valuation question, introduced into a representative survey of the French population...
June 16, 2017: Health Economics
https://www.readbyqxmd.com/read/28620268/towards-the-genetic-control-of-invasive-species
#19
Tim Harvey-Samuel, Thomas Ant, Luke Alphey
Invasive species remain one of the greatest threats to global biodiversity. Their control would be enhanced through the development of more effective and sustainable pest management strategies. Recently, a novel form of genetic pest management (GPM) has been developed in which the mating behaviour of insect pests is exploited to introduce genetically engineered DNA sequences into wild conspecific populations. These 'transgenes' work in one or more ways to reduce the damage caused by a particular pest, for example reducing its density, or its ability to vector disease...
2017: Biological Invasions
https://www.readbyqxmd.com/read/28620259/standardization-of-dot-enzyme-linked-immmunosorbent-assay-for-the-diagnosis-of-bovine-visceral-schistosomiasis
#20
Kommu Sudhakar, G S Sreenivasa Murthy, Gaddam Rajeshwari
AIM: Bovine visceral schistosomiasis has been reported as an important disease entity as it affects animal health, productivity, causes economic losses due to liver condemnation, and produces a high morbidity. This study was conducted to standardize an easy, reliable dot-enzyme-linked immmunosorbent assay (ELISA) for the diagnosis of visceral schistosomiasis caused by Schistosoma spindale and to know the prevalence rate in and around Hyderabad. MATERIALS AND METHODS: A dot-ELISA was standardized in the laboratory using whole worm antigen (WWA) and excretory-secretory antigen (ESA) of S...
May 2017: Veterinary World
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