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https://www.readbyqxmd.com/read/28528903/equilibrium-bird-species-diversity-in-atlantic-islands
#1
Luis Valente, Juan Carlos Illera, Katja Havenstein, Tamara Pallien, Rampal S Etienne, Ralph Tiedemann
Half a century ago, MacArthur and Wilson proposed that the number of species on islands tends toward a dynamic equilibrium diversity around which species richness fluctuates [1]. The current prevailing view in island biogeography accepts the fundamentals of MacArthur and Wilson's theory [2] but questions whether their prediction of equilibrium can be fulfilled over evolutionary timescales, given the unpredictable and ever-changing nature of island geological and biotic features [3-7]. Here we conduct a complete molecular phylogenetic survey of the terrestrial bird species from four oceanic archipelagos that make up the diverse Macaronesian bioregion-the Azores, the Canary Islands, Cape Verde, and Madeira [8, 9]...
May 15, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28527481/rethinking-anatomy-how-to-overcome-challenges-of-medical-education-s-evolution
#2
REVIEW
Bruno Guimarães, Luís Dourado, Stanislav Tsisar, José Miguel Diniz, Maria Dulce Madeira, Maria Amélia Ferreira
INTRODUCTION: Due to scientific and technological development, Medical Education has been readjusting its focus and strategies. Medical curriculum has been adopting a vertical integration model, in which basic and clinical sciences coexist during medical instruction. This context favours the introduction of new complementary technology-based pedagogical approaches. Thus, even traditional core sciences of medical curriculum, like Anatomy, are refocusing their teaching/learning paradigm...
February 27, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28526036/molecular-characterization-of-dirofilaria-spp-circulating-in-portugal
#3
Cátia Ferreira, Ana Afonso, Manuela Calado, Isabel Maurício, Ana Margarida Alho, José Meireles, Luís Madeira de Carvalho, Silvana Belo
BACKGROUND: Dirofilariosis is a potentially zoonotic parasitic disease, mainly transmitted by mosquito vectors in many parts of the world. Data concerning the canine Dirofilaria species currently circulating in Portugal is scarce. Thereby, a large-scale study was conducted to determine the Dirofilaria spp. present in Portugal, based on a molecular approach, and also to optimize a reliable and highly sensitive species-specific polymerase chain reaction (PCR) assay that could be used for the simultaneous detection and differentiation of Dirofilaria immitis, Dirofilaria repens, and other concurrent filarial species in animal reservoirs...
May 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28502455/seasonal-changes-in-stress-biomarkers-of-an-exotic-coastal-species-chaetopleura-angulata-polyplacophora-implications-for-biomonitoring
#4
Diana Madeira, Catarina Vinagre, Vanessa Mendonça, Mário Sousa Diniz
Knowledge on baseline values of stress biomarkers in natural conditions is urgent due to the need of reference values for monitoring purposes. Here we assessed the cellular stress response of the chiton Chaetopleura angulata in situ. Biomarkers commonly used in environmental monitoring (heat shock protein 70kDa, total ubiquitin, catalase, glutathione-S-transferase, superoxide-dismutase, lipid peroxidation) were analyzed in the digestive system, gills and muscle of C. angulata, under spring and summer conditions in order to assess seasonal tissue-specific responses...
May 10, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28491880/iron-refractory-iron-deficiency-anemia-in-dizygotic-twins-due-to-a-novel-tmprss6-gene-mutation-in-addition-to-polymorphisms-associated-with-high-susceptibility-to-develop-ferropenic-anemia
#5
Joana Pinto, Gustavo Nobre de Jesus, Mónica Palma Anselmo, Lúcia Gonçalves, Daniela Brás, João Madeira Lopes, João Meneses, Rui Victorino, Paula Faustino
Iron refractory iron deficiency anemia (IRIDA) is an autosomal recessive ferropenic anemia. Its hypochromic microcytic pattern is associated with low transferrin saturation, normal-high ferritin, and inappropriately high hepcidin level. This entity is caused by mutants of the TMPRSS6 gene that encodes the protein matriptase II, which influences hepcidin expression, an iron metabolism counterregulatory protein. We report two 29-year-old dizygotic female twins with ferropenic, hypochromic microcytic anemia with 20 years of evolution, refractory to oral iron therapy...
April 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28488936/long-term-social-recognition-memory-in-zebrafish
#6
Natália Madeira, Rui F Oliveira
In species in which individuals live in stable social groups, individual recognition is expected to evolve to allow individuals to remember past interactions with different individuals and adjust future behavior toward them accordingly. Thus, social memory is expected to be a ubiquitous component of social cognition of social species. However, few studies have investigated the occurrence of social memory in non-mammals. Here we evaluated the ability of zebrafish (Danio rerio) to recognize different conspecifics and to retain this information in long lasting (i...
May 10, 2017: Zebrafish
https://www.readbyqxmd.com/read/28462759/reduced-protein-diets-increase-intramuscular-fat-of-psoas-major-a-red-muscle-in-lean-and-fatty-pig-genotypes
#7
M S Madeira, P A Lopes, P Costa, D Coelho, C M Alfaia, J A M Prates
The present study aims to assess the effects of pig's genotype (lean v. fatty) and dietary protein level (control v. reduced) on intramuscular fat (IMF) content, fatty acid composition and fibre profile of psoas major, a representative red muscle in pig's carcass scarcely studied relative to white longissimus lumborum. The experiment was conducted on 40 intact male pigs (20 Alentejana purebred and 20 Large White×Landrace×Pietrain crossbred) from 60 to 93 kg of live weight. Pigs were divided and allocated to four dietary groups: control protein diet equilibrated for lysine (17...
May 2, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28455237/lungworms-and-gastrointestinal-parasites-of-domestic-cats-a-european-perspective
#8
Alessio Giannelli, Gioia Capelli, Anja Joachim, Barbara Hinney, Bertrand Losson, Zvezdelina Kirkova, Magalie René-Martellet, Elias Papadopoulos, Róbert Farkas, Ettore Napoli, Emanuele Brianti, Claudia Tamponi, Antonio Varcasia, Ana Margarida Alho, Luís Madeira de Carvalho, Luís Cardoso, Carla Maia, Viorica Mircean, Andrei Daniel Mihalca, Guadalupe Miró, Manuela Schnyder, Cinzia Cantacessi, Vito Colella, Maria Alfonsa Cavalera, Maria Stefania Latrofa, Giada Annoscia, Martin Knaus, Lénaïg Halos, Frederic Beugnet, Domenico Otranto
With the exception of Aelurostrongylus abstrusus, feline lungworms have been poorly studied. Information on their distribution is patchy and mostly limited to case reports. In this study, the occurrence of feline lungworms and co-infecting gastrointestinal parasites has been investigated in 12 European countries (i.e. Austria, Belgium, Bulgaria, France, Greece, Hungary, Italy, Portugal, Romania, Spain, Switzerland and the United Kingdom). An average of 10 domestic cats, with regular outdoor access, was sampled each month for 12months, and freshly passed faeces were collected...
April 26, 2017: International Journal for Parasitology
https://www.readbyqxmd.com/read/28443956/prognostic-factors-in-severe-chagasic-heart-failure
#9
Sandra de Araújo Costa, Salvador Rassi, Elis Marra da Madeira Freitas, Natália da Silva Gutierrez, Fabiana Miranda Boaventura, Larissa Pereira da Costa Sampaio, João Bastista Masson Silva
BACKGROUND: Prognostic factors are extensively studied in heart failure; however, their role in severe Chagasic heart failure have not been established. OBJECTIVES: To identify the association of clinical and laboratory factors with the prognosis of severe Chagasic heart failure, as well as the association of these factors with mortality and survival in a 7.5-year follow-up. METHODS: 60 patients with severe Chagasic heart failure were evaluated regarding the following variables: age, blood pressure, ejection fraction, serum sodium, creatinine, 6-minute walk test, non-sustained ventricular tachycardia, QRS width, indexed left atrial volume, and functional class...
March 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28437896/variability-of-apparent-and-inherent-optical-properties-of-sediment-laden-waters-in-large-river-basins-lessons-from-in-situ-measurements-and-bio-optical-modeling
#10
Sylvain Pinet, Jean-Michel Martinez, Sylvain Ouillon, Bruno Lartiges, Raul Espinoza Villar
We investigated the relationships between inherent and apparent optical properties (IOP and AOP, respectively) and suspended sediment concentrations (SSC) in the main Amazonian river waters. In situ measurements of SSC, remote sensing reflectance (R<sub>rs</sub>), the diffuse light attenuation coefficient (K<sub>d</sub>) and the total and non-algal particle (NAP) absorption coefficients (a<sub>TOT</sub> and a<sub>NAP</sub>, respectively) were conducted during three sampling trips along different streams of the Amazon River catchment (104 stations)...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28434753/inform-and-consent-more-than-just-sign-here
#11
EDITORIAL
Jody Lynee Madeira, Kathryn Coyne, Ami S Jaeger, J Preston Parry, Steven R Lindheim
No abstract text is available yet for this article.
April 20, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28424894/the-integrity-of-the-nucleus-of-the-lateral-olfactory-tract-is-essential-for-the-normal-functioning-of-the-olfactory-system
#12
Ricardo P Vaz, Armando Cardoso, Susana I Sá, Pedro A Pereira, M Dulce Madeira
The nucleus of the lateral olfactory tract (nLOT) is a relatively small component of the cortical pallial amygdala, with peculiar neurogenic, neurochemical and connectivity patterns. Although it has been suggested that it might be involved in non-pheromonal olfactory-guided behaviors, particularly feeding, the functional implications of the nLOT have never been investigated. In view of this fact, we have tackled this subject by performing a series of behavioral tests and by quantifying biological and biochemical parameters in sexually naïve adult male rats that were submitted to bilateral excitotoxic lesions of the nLOT...
April 19, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28419136/occurrence-of-leishmania-infantum-in-the-central-nervous-system-of-naturally-infected-dogs-parasite-load-viability-co-infections-and-histological-alterations
#13
Valéria da Costa Oliveira, Viviane Cardoso Boechat, Artur Augusto Velho Mendes Junior, Maria de Fátima Madeira, Luiz Claudio Ferreira, Fabiano Borges Figueiredo, Monique Paiva Campos, Francisco das Chagas de Carvalho Rodrigues, Raquel de Vasconcellos Carvalhaes de Oliveira, Maria Regina Reis Amendoeira, Rodrigo Caldas Menezes
Zoonotic visceral leishmaniasis is caused by the protozoan Leishmania infantum and little is known about the occurrence and pathogenesis of this parasite in the CNS. The aims of this study were to evaluate the occurrence, viability and load of L. infantum in the CNS, and to identify the neurological histological alterations associated with this protozoan and its co-infections in naturally infected dogs. Forty-eight Leishmania-seropositive dogs from which L. infantum was isolated after necropsy were examined...
2017: PloS One
https://www.readbyqxmd.com/read/28407797/association-between-length-of-residence-and-overweight-among-adult-immigrants-in-portugal-a-nationwide-cross-sectional-study
#14
Liliane Peralta da Costa, Sónia Ferreira Dias, Maria do Rosário Oliveira Martins
BACKGROUND: Despite the importance of immigrant population in Portugal few studies have analyzed the patterns of overweight/obesity in this subpopulation. The aims of this study are: (i) describe and compare the prevalence of overweight between immigrants and natives in Portugal; (ii) analyze the association between length of residence and overweight among adult immigrants in Portugal. METHODS: A cross-sectional study (2005-2006) in a representative sample of the Portuguese population from national territory, including the Autonomous Regions of Azores and Madeira...
April 13, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28407055/inequalities-in-obesity-in-portugal-regional-and-gender-differences
#15
Luís Alves, Silvia Stringhini, Henrique Barros, Ana Azevedo, Pedro Marques-Vidal
Obesity levels vary considerably according to geographical region and socio-economic status. We evaluated the prevalence of obesity by education and occupational position across seven Portuguese regions. Relative and absolute inequalities in obesity were also assessed. Data was drawn from the Portuguese Health Survey 2005/6 (26 674 adults, 46.6% women). Education was categorized as ≤4, 5-11 and ≥12 complete years of education. Occupational position was grouped as upper white collar, lower white collar and blue collar...
April 11, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28405644/alternative-probe-for-the-determination-of-the-hydrogen-bond-acidity-of-ionic-liquids-and-their-aqueous-solutions
#16
Pedro P Madeira, Helena Passos, Joana Gomes, João A P Coutinho, Mara G Freire
Although highly relevant to a priori select adequate solvents for a given application, the determination of the hydrogen-bond acidity or proton donor ability of aqueous solutions of ionic liquids is a difficult task due to the poor solubility of the commonly used probes in aqueous media. In this work, we demonstrate the applicability of the pyridine-N-oxide probe to determine the hydrogen-bond acidity of both neat ionic liquids and their aqueous solutions, based on (13)C NMR chemical shifts, and the suitability of these values to appraise the ability of ionic liquids to form aqueous two-phase systems...
April 13, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28399193/high-genetic-diversity-among-and-within-bitter-manioc-varieties-cultivated-in-different-soil-types-in-central-amazonia
#17
Alessandro Alves-Pereira, Nivaldo Peroni, Marcelo Mattos Cavallari, Maristerra R Lemes, Maria Imaculada Zucchi, Charles R Clement
Although manioc is well adapted to nutrient-poor Oxisols of Amazonia, ethnobotanical observations show that bitter manioc is also frequently cultivated in the highly fertile soils of the floodplains and Amazonian dark earths (ADE) along the middle Madeira River. Because different sets of varieties are grown in each soil type, and there are agronomic similarities between ADE and floodplain varieties, it was hypothesized that varieties grown in ADE and floodplain were more closely related to each other than either is to varieties grown in Oxisols...
April 10, 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28371848/negative-effect-of-malocclusion-on-the-emotional-and-social-well-being-of-brazilian-adolescents-a-population-based-study
#18
Jéssica Madeira Bittencourt, Letícia Pereira Martins, Cristiane Baccin Bendo, Miriam Pimenta Vale, Saul Martins Paiva
Background/objectives: The aesthetic impact of malocclusion can have negative repercussions on quality of life, social interaction, interpersonal relationships, and psychological well-being. The aim of this study was to evaluate the impact of malocclusion on the quality of life of Brazilian adolescents. Methods: A representative cross-sectional study of 1612 adolescents from Belo Horizonte, Minas Gerais was conducted. The adolescents responded to the Brazilian version of the Child Perception Questionnaire (CPQ11-14-ISF:16) to assess the impact of the condition on quality of life...
March 25, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28359203/distinct-fatty-acid-composition-of-some-edible-by-products-from-bovines-fed-high-or-low-silage-diets
#19
Cristina M Alfaia, Susana P Alves, José M Pestana, Marta S Madeira, Olga Moreira, José Santos-Silva, Rui Jb Bessa, Fidel Toldrá, José Am Prates
In the present study, it was hypothesized that the incorporation of fatty acids is distinct among ruminant tissues and that it could be modulated by diet composition. To test this hypothesis, fatty acid composition, including conjugated linoleic acid isomers, of the most relevant beef by-products (brain, heart, kidney, liver, pancreas and tongue) from young bulls those fed distinct silage levels was assessed. Data indicated a large variation in fatty acid profile and conjugated linoleic acid composition among edible by-products...
April 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28341293/marine-protected-communities-against-biological-invasions-a-case-study-from-an-offshore-island
#20
I Gestoso, P Ramalhosa, P Oliveira, J Canning-Clode
Biological invasions are a major threat to the world's biota and are considered a major cause of biodiversity loss. Therefore, world marine policy has recognized the need for more marine protected areas (MPAs) as a major tool for biodiversity conservation. The present work experimentally evaluated how protected communities from an offshore island can face the settlement and/or expansion of nonindigenous species (NIS). First, NIS colonization success in marine protected and marina communities was compared by deploying PVC settling plates at the Garajau MPA and Funchal marina (SW Madeira Island)...
March 21, 2017: Marine Pollution Bulletin
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