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https://www.readbyqxmd.com/read/29330712/correction-to-pre-existing-small-vessel-disease-in-patients-with-acute-stroke-from-the-middle-east-southeast-asia-and-philippines
#1
Naveed Akhtar, Abdul Salam, Saadat Kamran, Atlantic D'Souza, Yahia Imam, Pablo Garcia Bermejo, Muhammad Faisal Wadiwala, Ahmed Own, Ahmed ElSotouhy, Surjith Vattoth, Paula Bourke, Zain Bhutta, Sujatha Joseph, Mark Santos, Rabia Ali Khan, Ashfaq Shuaib
The author names "Dr. Pablo Garcia Bermejo" and "Dr. Muhammad Faisal Wadiwala" needed to be added as the 6th and 7th authors, respectively. The authors regret this error.
January 13, 2018: Translational Stroke Research
https://www.readbyqxmd.com/read/29330475/recent-enhanced-high-summer-north-atlantic-jet-variability-emerges-from-three-century-context
#2
V Trouet, F Babst, M Meko
A recent increase in mid-latitude extreme weather events has been linked to Northern Hemisphere polar jet stream anomalies. To put recent trends in a historical perspective, long-term records of jet stream variability are needed. Here we combine two tree-ring records from the British Isles and the northeastern Mediterranean to reconstruct variability in the latitudinal position of the high-summer North Atlantic Jet (NAJ) back to 1725 CE. We find that northward NAJ anomalies have resulted in heatwaves and droughts in northwestern Europe and southward anomalies have promoted wildfires in southeastern Europe...
January 12, 2018: Nature Communications
https://www.readbyqxmd.com/read/29330422/seabirds-fighting-for-land-phenotypic-consequences-of-breeding-area-constraints-at-a-small-remote-archipelago
#3
Guilherme Tavares Nunes, Sophie Bertrand, Leandro Bugoni
Identifying associations between phenotypes and environmental parameters is crucial for understanding how natural selection acts at the individual level. In this context, genetically isolated populations can be useful models for identifying the forces selecting fitness-related traits. Here, we use a comprehensive dataset on a genetically and ecologically isolated population of the strictly marine bird, the brown booby Sula leucogaster, at the tropical and remote Saint Peter and Saint Paul Archipelago, mid-Atlantic Ocean, in order to detect phenotypic adjustments from interindividual differences in diet, foraging behaviour, and nest quality...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29324892/genetic-factors-have-a-major-effect-on-growth-number-of-vertebrae-and-otolith-shape-in-atlantic-herring-clupea-harengus
#4
Florian Berg, Oda W Almeland, Julie Skadal, Aril Slotte, Leif Andersson, Arild Folkvord
Atlantic herring, Clupea harengus, have complex population structures. Mixing of populations is known, but the extent of connectivity is still unclear. Phenotypic plasticity results in divergent phenotypes in response to environmental factors. A marked salinity gradient occurs from Atlantic Ocean (salinity 35) into the Baltic Sea (salinity range 2-12). Herring from both habitats display phenotypic and genetic variability. To explore how genetic factors and salinity influence phenotypic traits like growth, number of vertebrae and otolith shape an experimental population consisting of Atlantic purebreds and Atlantic/Baltic F1 hybrids were incubated and co-reared at two different salinities, 16 and 35, for three years...
2018: PloS One
https://www.readbyqxmd.com/read/29324758/settlement-and-post-settlement-survival-rates-of-the-white-seabream-diplodus-sargus-in-the-western-mediterranean-sea
#5
Amalia Cuadros, Gotzon Basterretxea, Luis Cardona, Adrien Cheminée, Manuel Hidalgo, Joan Moranta
Survival during the settlement window is a limiting variable for recruitment. The survival is believed to be strongly determined by biological interactions and sea conditions, however it has been poorly investigated. We examined the settlement patterns related to relevant biotic and abiotic factors (i.e. Density-dependence, wind stress, wave height and coastal current velocity) potentially determining post-settler survival rates of a coastal necto-benthic fish of wide distribution in the Mediterranean and eastern Atlantic, the white seabream (Diplodus sargus)...
2018: PloS One
https://www.readbyqxmd.com/read/29324085/hyperparasitism-of-an-avian-ectoparasitic-hippoboscid-fly-ornithomya-anchineuria-by-the-mite-myialges-cf-borealis-in-alberta-canada
#6
Cameron P Goater, Jayden Dyck, Heather Proctor, Kevin Floate
Hippoboscid flies (Diptera: Hippoboscidae) include species that are ectoparasites of birds in the Northern Hemisphere, but little is known regarding their taxonomy, parasites, avian host associations, or geographical distribution in North America. In late August of 2013 and 2014, we collected hippoboscid flies from live birds trapped in mist nets as part of a banding study in Cypress Hills Interprovincial Park in southeastern Alberta, Canada. A total of 113 birds comprising 9 species was examined in 2013. Of these, 18 individuals were infested with 1-3 Ornithomya anchineuria Speiser (n = 22 flies; prevalence = 15...
January 11, 2018: Journal of Parasitology
https://www.readbyqxmd.com/read/29323633/prevalence-of-metabolic-syndrome-in-veterans-with-spinal-cord-injury
#7
David R Gater, Gary J Farkas, Arthur S Berg, Camilo Castillo
CONTEXT/OBJECTIVE: Recent literature would suggest the prevalence of metabolic syndrome in persons with spinal cord injury (SCI) is higher than that of the general population, although no large cohorts have yet been reported. Part of the controversy relates to the differing definitions provided for metabolic syndrome and the characterization of obesity in persons with SCI. DESIGN/PARTICIPANTS: The current retrospective investigation represents a cross-sectional cohort of 473 veterans with SCI from a single center in the mid-Atlantic region of the United States for whom modified International Diabetes Federation (IDF) criterion variables for the metabolic syndrome were available in the computerized personal record system (CPRS)...
January 11, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29323171/new-anti-inflammatory-guaianes-from-the-atlantic-hydrotherm-derived-fungus-graphostroma-sp-mccc-3a00421
#8
Siwen Niu, Chun-Lan Xie, Jin-Mei Xia, Zhu-Hua Luo, Zongze Shao, Xian-Wen Yang
Nine new guaianes (graphostromanes A-I, 1-9) were isolated from the deep-sea-derived fungus Graphostroma sp. MCCC 3A00421, along with four known ones (10-13). The relative configurations were established mainly by detailed analysis of the NMR and HRESIMS data, while the absolute configurations were assigned using the X-ray crystallography and modified Mosher's method. All isolates were evaluated for their inhibitory effects against lipopolysaccharide (LPS)-induced nitric oxide (NO) production in RAW264.7 macrophages...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321890/nature-versus-nurture-consequences-of-short-captivity-in-early-stages
#9
Jose L Horreo, America G Valiente, Alba Ardura, Aida Blanco, Claudia Garcia-Gonzalez, Eva Garcia-Vazquez
Biological changes occurring as a consequence of domestication and/or captivity are not still deeply known. In Atlantic salmon (Salmo salar), endangered (Southern Europe) populations are enhanced by supportive breeding, which involves only 6 months of captive rearing following artificial spawning of wild-collected adults. In this work, we assess whether several fitness-correlated life-history traits (migratory behavior, straying rate, age at maturity, and growth) are affected by early exposure to the captive environment within a generation, before reproduction thus before genetic selection...
January 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29321292/atlantic-bluefin-tuna-spawn-at-suboptimal-temperatures-for-their-offspring
#10
P Reglero, A Ortega, R Balbín, F J Abascal, A Medina, E Blanco, F de la Gándara, D Alvarez-Berastegui, M Hidalgo, L Rasmuson, F Alemany, Ø Fiksen
Life-history traits such as spawning migrations and timing of reproduction are adaptations to specific environmental constraints and seasonal cycles in many organisms' annual routines. In this study we analyse how offspring fitness constrains spawning phenology in a large migratory apex predator, the Atlantic bluefin tuna. The reproductive schedule of Atlantic bluefin tuna varies between spawning sites, suggesting plasticity to local environmental conditions. Generally, temperature is considered to be the main constraint on tuna spawning phenology...
January 10, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29320551/are-oral-deformities-in-tadpoles-accurate-indicators-of-anuran-chytridiomycosis
#11
Alba Navarro-Lozano, David Sánchez-Domene, Denise C Rossa-Feres, Jaime Bosch, Ricardo J Sawaya
We evaluated the use of oral deformities as reliable proxies for determining Batrachochytrium dendrobatidis (Bd) infection in tadpoles of six anuran species of the Atlantic Forest in southeastern Brazil. We examined oral discs of 2156 tadpoles of six species of anurans collected in 2016: Aplastodiscus albosignatus, Boana albopunctata, Boana faber, Scinax hayii, Crossodactylus caramaschii, and Physalaemus cuvieri. Three oral deformities were recognized: lack of keratinization only in upper and/or lower jaw sheaths, lack of keratinization only in upper or lower tooth rows, and both deformities together...
2018: PloS One
https://www.readbyqxmd.com/read/29317730/large-scale-sill-emplacement-in-brazil-as-a-trigger-for-the-end-triassic-crisis
#12
Thea H Heimdal, Henrik H Svensen, Jahandar Ramezani, Karthik Iyer, Egberto Pereira, René Rodrigues, Morgan T Jones, Sara Callegaro
The end-Triassic is characterized by one of the largest mass extinctions in the Phanerozoic, coinciding with major carbon cycle perturbations and global warming. It has been suggested that the environmental crisis is linked to widespread sill intrusions during magmatism associated with the Central Atlantic Magmatic Province (CAMP). Sub-volcanic sills are abundant in two of the largest onshore sedimentary basins in Brazil, the Amazonas and Solimões basins, where they comprise up to 20% of the stratigraphy. These basins contain extensive deposits of carbonate and evaporite, in addition to organic-rich shales and major hydrocarbon reservoirs...
January 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29317213/influence-of-strain-origin-on-osmoregulatory-and-endocrine-parameters-of-two-non-native-strains-of-atlantic-salmon-salmo-salar-l
#13
Benoît Bernard, Kevin Chantung Sobandi, Veerle Darras, Xavier Rollin, Syaghalirwa N M Mandiki, Patrick Kestemont
Non-native strains of Atlantic salmon are used in reinstatement trials where populations are extinct. Environmental cues like photoperiod and temperature are known to influence the smolting process and there is evidence of strain-, stock- or population-specific differences associated with seaward migration or smoltification. The objective of this study was to compare morphological, osmoregulatory and endorcrine features between two strains, one originating from a cold and short river in Ireland (Cong) and another from a long and warm river in France (Loire-Allier), reared under Belgian conditions in order to highlight major differences in restocking adaptability...
January 6, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29316220/interactive-effects-of-hypoxia-and-pcb-co-exposure-on-expression-of-cyp1a-and-its-potential-regulators-in-atlantic-croaker-liver
#14
Md Saydur Rahman, Peter Thomas
Although marine and coastal environments which are contaminated with xenobiotic organic compounds often become hypoxic during the summer, the interactive effects of hypoxia and xenobiotic exposure on marine species such as teleost fishes remain poorly understood. The expression and activity of monooxygenase enzyme cytochrome P450-1A (CYP1A) in fishes are upregulated by exposure to polychlorinated biphenyls (PCBs), whereas they are down-regulated during hypoxia exposure. We investigated the interactive effects of hypoxia and PCB co-exposure on hepatic CYP1A expression in Atlantic croaker and on potential regulators of CYP1A...
January 8, 2018: Environmental Toxicology
https://www.readbyqxmd.com/read/29316045/redescription-of-tintinnopsis-everta-kofoid-campbell-1929-alveolata-ciliophora-tintinnina-based-on-taxonomic-and-genetic-analyses-discovery-of-a-new-complex-ciliary-pattern
#15
Michael S Gruber, Michaela Strüder-Kypke, Sabine Agatha
The about 1,000 species of tintinnid ciliates are identified and classified almost exclusively based on their lorica features, although the shortcomings of this structure are well-known, e.g., causing uncertain species limitations and non-monophyletic taxa. Hence, the present redescription of Tintinnopsis everta Kofoid and Campbell, 1929 considers not only the lorica characteristics, but focuses on cell and genetic features. The species is redescribed from the North Atlantic and adjacent sea areas, namely the east coast of the USA, using live observation, protargol-stained material, scanning electron microscopy, and genetic analyses...
January 5, 2018: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/29315529/mixing-alters-the-lytic-activity-of-viruses-in-the-dark-ocean
#16
Christian Winter, Nicole Köstner, Carl-Philip Kruspe, Damaris Urban, Simone Muck, Thomas Reinthaler, Gerhard J Herndl
In aquatic habitats, viral lysis of prokaryotic cells lowers the overall efficiency of the microbial loop, by which dissolved organic carbon is transfered to higher trophic levels. Mixing of water masses in the dark ocean occurs on a global scale and may have far reaching consequences for the different prokaryotic and virus communities found in these waters by altering the environmental conditions these communities experience. We hypothesize that mixing of deep ocean water masses enhances the lytic activity of viruses infecting prokaryotes...
January 8, 2018: Ecology
https://www.readbyqxmd.com/read/29315301/population-genomics-of-mesolithic-scandinavia-investigating-early-postglacial-migration-routes-and-high-latitude-adaptation
#17
Torsten Günther, Helena Malmström, Emma M Svensson, Ayça Omrak, Federico Sánchez-Quinto, Gülşah M Kılınç, Maja Krzewińska, Gunilla Eriksson, Magdalena Fraser, Hanna Edlund, Arielle R Munters, Alexandra Coutinho, Luciana G Simões, Mário Vicente, Anders Sjölander, Berit Jansen Sellevold, Roger Jørgensen, Peter Claes, Mark D Shriver, Cristina Valdiosera, Mihai G Netea, Jan Apel, Kerstin Lidén, Birgitte Skar, Jan Storå, Anders Götherström, Mattias Jakobsson
Scandinavia was one of the last geographic areas in Europe to become habitable for humans after the Last Glacial Maximum (LGM). However, the routes and genetic composition of these postglacial migrants remain unclear. We sequenced the genomes, up to 57× coverage, of seven hunter-gatherers excavated across Scandinavia and dated from 9,500-6,000 years before present (BP). Surprisingly, among the Scandinavian Mesolithic individuals, the genetic data display an east-west genetic gradient that opposes the pattern seen in other parts of Mesolithic Europe...
January 2018: PLoS Biology
https://www.readbyqxmd.com/read/29311638/an-assay-for-the-identification-of-plasmodium-simium-infection-for-diagnosis-of-zoonotic-malaria-in-the-brazilian-atlantic-forest
#18
Denise Anete Madureira de Alvarenga, Richard Culleton, Anielle de Pina-Costa, Danielle Fonseca Rodrigues, Cesare Bianco, Sidnei Silva, Ana Júlia Dutra Nunes, Julio César de Souza, Zelinda Maria Braga Hirano, Sílvia Bahadian Moreira, Alcides Pissinatti, Filipe Vieira Santos de Abreu, André Luiz Lisboa Areas, Ricardo Lourenço-de-Oliveira, Mariano Gustavo Zalis, Maria de Fátima Ferreira-da-Cruz, Patricia Brasil, Cláudio Tadeu Daniel-Ribeiro, Cristiana Ferreira Alves de Brito
Zoonotic malaria poses a unique problem for malaria control. Autochthonous cases of human malaria in the Atlantic Forest have recently been attributed to Plasmodium simium, a parasite that commonly infects non-human primates in this Brazilian biome. However, due to its close similarity at both the morphological and molecular level to Plasmodium vivax, the diagnosis of P. simium in this region remains problematic. Therefore, a diagnostic assay able to accurately identify P. simium is important for malaria surveillance...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29311410/high-prevalence-of-hepatitis-b-subgenotype-d4-in-northeast-brazil-an-ancient-relic-from-african-continent
#19
Max D Cruz-Santos, Michele S Gomes-Gouvêa, Jomar D Costa-Nunes, Camila Malta-Romano, Marinilde Teles-Sousa, Lena M Fonseca-Barros, Flair J Carrilho, Adalgisa de S Paiva-Ferreira, João R Rebello-Pinho
INTRODUCTION: Hepatitis B virus (HBV) infection leads to a chronic liver disease that is distributed worldwide. The characterization of HBV into genotypes/subgenotypes is not only a mere procedure for distinguishing different HBV strains around the world because determining their geographic distribution is crucial to understanding their spread across the world. MATERIAL AND METHODS: We characterized different HBV genotypes and subgenotypes in five municipalities located in northeastern Maranhão, in the Brazilian north Atlantic coast...
December 27, 2017: Annals of Hepatology
https://www.readbyqxmd.com/read/29310597/de-novo-transcriptome-assembly-annotation-and-comparison-of-four-ecological-and-evolutionary-model-salmonid-fish-species
#20
Madeleine Carruthers, Andrey A Yurchenko, Julian J Augley, Colin E Adams, Pawel Herzyk, Kathryn R Elmer
BACKGROUND: Salmonid fishes exhibit high levels of phenotypic and ecological variation and are thus ideal model systems for studying evolutionary processes of adaptive divergence and speciation. Furthermore, salmonids are of major interest in fisheries, aquaculture, and conservation research. Improving understanding of the genetic mechanisms underlying traits in these species would significantly progress research in these fields. Here we generate high quality de novo transcriptomes for four salmonid species: Atlantic salmon (Salmo salar), brown trout (Salmo trutta), Arctic charr (Salvelinus alpinus), and European whitefish (Coregonus lavaretus)...
January 8, 2018: BMC Genomics
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