Read by QxMD icon Read


Kathryn E Lohr, Emma F Camp, Unnikrishnan Kuzhiumparambil, Adrian Lutz, William Leggat, Joshua T Patterson, David J Suggett
Corals continuously adjust to short term variation in light availability on shallow reefs. Long-term light alterations can also occur due to natural and anthropogenic stressors, as well as management interventions such as coral transplantation. Although short term photophysiological responses are relatively well-understood in corals, little information is available regarding photoacclimation dynamics over weeks of altered light availability. We coupled photophysiology and metabolomic profiling to explore changes that accompany longer-term photoacclimation in a key Great Barrier Reef coral species ( Acropora muricata )...
March 15, 2019: Journal of Experimental Biology
Alexandra N Barone, Caitlyn E Hayes, James J Kerr, Ryan C Lee, Denise B Flaherty
Given the prevalence of skin cancer, sunscreens are recommended by dermatologists including the American Academy of Dermatology to protect skin from harmful ultraviolet rays. Unfortunately, this leads to an estimated 14,000 tons of sunscreen entering waterways each year. Many of the chemicals in sunscreens, such as oxybenzone and benzophenone-2, are indicated to have adverse effects on corals and other aquatic life. As an eco-conscious alternative, physical barrier sunscreens, such as non-nano-titanium dioxide (TiO2 ), have been suggested as a replacement...
March 14, 2019: Environmental Science and Pollution Research International
Steve Kisely, Amanuel Alemu Abajobir, Ryan Mills, Lane Strathearn, Alexandra Clavarino, Coral Gartner, Jake Moses Najman
OBJECTIVE: A prospective record-linkage analysis to examine whether notified and/or substantiated child maltreatment is associated with the prevalence and persistence of smoking in early adulthood. METHODS: The sample consisted of 3758 participants enrolled in a population-based birth cohort study in Brisbane, Australia who were followed up at both 14 and 21 years of age. Suspected experience of child maltreatment was measured by linkage with state child protection agency data...
March 15, 2019: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
Nicholas A O'Mara, John P Dunne
Ocean calcium carbonate (CaCO3 ) production and preservation play a key role in the global carbon cycle. Coastal and continental shelf (neritic) environments account for more than half of global CaCO3 accumulation. Previous neritic CaCO3 budgets have been limited in both spatial resolution and ability to project responses to environmental change. Here, a 1° spatially explicit budget for neritic CaCO3 accumulation is developed. Globally gridded satellite and benthic community area data are used to estimate community CaCO3 production...
March 14, 2019: Scientific Reports
Marcos Díaz-Gay, Sebastià Franch-Expósito, Coral Arnau-Collell, Solip Park, Fran Supek, Jenifer Muñoz, Laia Bonjoch, Anna Gratacós-Mulleras, Paula A Sánchez-Rojas, Clara Esteban-Jurado, Teresa Ocaña, Miriam Cuatrecasas, Maria Vila-Casadesús, Juan José Lozano, Genis Parra, Steve Laurie, Sergi Beltran, Epicolon Consortium, Antoni Castells, Luis Bujanda, Joaquín Cubiella, Francesc Balaguer, Sergi Castellví-Bel
Colorectal cancer (CRC) shows aggregation in some families but no alterations in the known hereditary CRC genes. We aimed to identify new candidate genes which are potentially involved in germline predisposition to familial CRC. An integrated analysis of germline and tumor whole-exome sequencing data was performed in 18 unrelated CRC families. Deleterious single nucleotide variants (SNV), short insertions and deletions (indels), copy number variants (CNVs) and loss of heterozygosity (LOH) were assessed as candidates for first germline or second somatic hits...
March 13, 2019: Cancers
Zhenyong Du, Tadashi Ishikawa, Hui Liu, Satoshi Kamitani, Osamu Tadauchi, Wanzhi Cai, Hu Li
The assassin bug, Sphedanolestes impressicollis (Hemiptera: Reduviidae), is widely distributed in East Asia. It is an ideal model for evaluating the effects of climatic fluctuation and geographical events on the distribution patterns of East Asian reduviids. Here, we used two mitochondrial genes and one nuclear gene to investigate the phylogeographic pattern of the assassin bug based on comprehensive sampling in China, Japan, South Korea, Vietnam, and Laos. High levels of genetic differentiation were detected among the geographic populations classified into the northern and southern groups...
March 12, 2019: International Journal of Molecular Sciences
Liping Guo, Yujiao Wang, Jaime A Teixeira da Silva, Yongming Fan, Xiaonan Yu
The flower color of Paeonia 'Coral Sunset' and 'Pink Hawaiian Coral' changes from coral to pink to pale yellow during flowering, which confers high ornamental value to these two cultivars. However, the molecular mechanism underlying flower color change is still unclear. In this study, flavonoids in petals of Paeonia 'Coral Sunset' and 'Pink Hawaiian Coral' at seven flowering stages were analyzed to explore the effects of the flavonoid component on changes in flower color. In addition, four cDNA libraries of 'Coral Sunset' during the critical blooming stages were constructed and the transcriptome was sequenced to investigate the molecular mechanism underlying changes to flower color...
March 4, 2019: Plant Physiology and Biochemistry: PPB
Coral Dirks, Peggy B Nelson, Douglas P Sladen, Andrew J Oxenham
OBJECTIVES: This study tested listeners with a cochlear implant (CI) in one ear and acoustic hearing in the other ear, to assess their ability to localize sound and to understand speech in collocated or spatially separated noise or speech maskers. DESIGN: Eight CI listeners with contralateral acoustic hearing ranging from normal hearing to moderate sensorineural hearing loss were tested. Localization accuracy was measured in five of the listeners using stimuli that emphasized the separate contributions of interaural level differences (ILDs) and interaural time differences (ITD) in the temporal envelope and/or fine structure...
March 7, 2019: Ear and Hearing
Stephan Skornitzke, Jacek Raddatz, André Bahr, Gregor Pahn, Hans-Ulrich Kauczor, Wolfram Stiller
BACKGROUND: In computed tomography (CT) quality assurance, alignment of image quality phantoms is crucial for quantitative and reproducible evaluation and may be improved by alignment correction. Our goal was to develop an alignment correction algorithm to facilitate geological sampling of sediment cores taken from a cold-water coral mount. METHODS: An alignment correction algorithm was developed and tested with a CT acquisition at 120 kVp and 150 mAs of an image quality phantom...
March 12, 2019: European Radiology Experimental
Christopher D Standish, Thomas B Chalk, Tali L Babila, J Andy Milton, Martin R Palmer, Gavin L Foster
RATIONALE: Boron isotope analysis of marine carbonates by laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) offers the potential for rapid sample throughput, and the means to examine micron scale variations in the δ11 B signatures of fossil skeletons and shells/tests of marine organisms. Existing studies demonstrate an acceptable level of reproducibility is achievable, but also typically show a level of accuracy outside the limits required by most applications...
March 13, 2019: Rapid Communications in Mass Spectrometry: RCM
Hugo Jacob, Arthur Gilson, Chantal Lanctôt, Marc Besson, Marc Metian, David Lecchini
Microplastics (MP) are ubiquitous in the marine environment and have been shown to alter the behaviour of some species due to potential neurotoxic effect. However, very little is known on the effect of this stressor on behavioural responses of early and more vulnerable life stages. This study explores the effects of polystyrene MP (90 µm diameter) on the foraging activity of newly settled surgeonfish Acanthurus triostegus and on their survival facing predators. Exposure to a high concentration of 5 MP particles per mL (5 MP mL-1 ) for 3, 5 and 8 days did not alter their foraging activity nor their susceptibility to predation...
March 12, 2019: Bulletin of Environmental Contamination and Toxicology
Daniel T I Bayley, Andrew O M Mogg, Heather Koldewey, Andy Purvis
Reef structural complexity provides important refuge habitat for a range of marine organisms, and is a useful indicator of the health and resilience of reefs as a whole. Marine scientists have recently begun to use 'Structure from Motion' (SfM) photogrammetry in order to accurately and repeatably capture the 3D structure of physical objects underwater, including reefs. There has however been limited research on the comparability of this new method with existing analogue methods already used widely for measuring and monitoring 3D structure, such as 'tape and chain rugosity index (RI)' and graded visual assessments...
2019: PeerJ
Candida Savage
Nutrient subsidies across ecotone boundaries can enhance productivity in the recipient ecosystem, especially if the nutrients are transferred from a nutrient rich to an oligotrophic ecosystem. This study demonstrates that seabird nutrients from islands are assimilated by endosymbionts in corals on fringing reefs and enhance growth of a dominant reef-building species, Acropora formosa. Nitrogen stable isotope ratios (δ15 N) of zooxanthellae were enriched in corals near seabird colonies and decreased linearly with distance from land, suggesting that ornithogenic nutrients were assimilated in corals...
March 12, 2019: Scientific Reports
Guichu Yue, Shuai Li, Dianming Li, Jing Liu, Yaqiong Wang, Yuchao Zhao, Nü Wang, Zhimin Cui, Yong Zhao
One-dimensional hollow nanomaterials were widely used in catalysis field. However, the inner surfaces of one-dimensional hollow nanostructures could not be effectively utilized in liquid reaction due to diffusional limitation caused by the large ratio of length to diameter. In this work, a template assisted coaxial electrospinning method was developed to prepare TiO2 hollow nanofibers with through-holes which was further employed as carrier for Au nanoparticles. The Au/TiO2 hollow nanofibers with through-holes showed significantly catalytic activity enhancement to the reduction of 4-nitrophenol in aqueous solution compared with solid and hollow nanofibers counterparts...
March 12, 2019: Langmuir: the ACS Journal of Surfaces and Colloids
M Aaron MacNeil, Camille Mellin, Sam Matthews, Nicholas H Wolff, Timothy R McClanahan, Michelle Devlin, Christopher Drovandi, Kerrie Mengersen, Nicholas A J Graham
Threats from climate change and other human pressures have led to widespread concern for the future of Australia's Great Barrier Reef (GBR). Resilience of GBR reefs will be determined by their ability to resist disturbances and to recover from coral loss, generating intense interest in management actions that can moderate these processes. Here we quantify the effect of environmental and human drivers on the resilience of southern and central GBR reefs over the past two decades. Using a composite water quality index, we find that while reefs exposed to poor water quality are more resistant to coral bleaching, they recover from disturbance more slowly and are more susceptible to outbreaks of crown-of-thorns starfish and coral disease-with a net negative impact on recovery and long-term hard coral cover...
March 11, 2019: Nature Ecology & Evolution
Yibo Wu, Zhi Zhou, Jun Wang, Jian Luo, Lingui Wang, Yidan Zhang
Lectins serve as essential pattern recognition receptors, and play important roles in the recognition of non-self and mediation of innate immune response in metazoans. Scleractinian corals are vulnerable to pathogen infection and endosymbiosis disruption under heat stress that can finally lead to coral bleaching. In this study, a cDNA sequence encoding one galectin was cloned in scleractinian coral Pocillopora damicornis (PdGLT-1). The deduced PdGLT-1 protein shared highest amino acid sequence similarity (99%) with galectin from Stylophora pistillata (XP_022806650...
March 8, 2019: Developmental and Comparative Immunology
Jiao Li, Yu-Bing Zheng, Tibor Kurtán, Ming-Xiang Liu, Hua Tang, Chun-Lin Zhuang, Wen Zhang
Two new anthraquinone derivatives, alterporriol Y (1) and macrosporin 2-O-α-D-glucopyranoside (2), together with five known analogues (3-7) were isolated from the fungus Stemphylium lycopersici associated with the gorgonian coral Dichotella gemmacea collected from the South China Sea. Their structures were determined on the basis of detailed spectroscopic analysis and comparison with reported data. The absolute configurations were determined by the ECD method. In an in vitro cytotoxic assay, compound 3 and 4 showed potent effects against HCT-116 and MCF-7 cell lines...
March 11, 2019: Natural Product Research
María Carlina Castillo-Beltrán, Juan Pablo Hurtado-Gómez, Vladimir Corredor-Espinel, Francisco Javier Ruiz-Gómez
Coral snakes of the genus Micrurus have a high diversity and a wide distribution in the Americas. Despite envenomings by these animals are uncommon, accidents are often severe and may result in death. Producing an antivenom to treat these envenomings has been challenging since coral snakes are difficult to catch, produce small amounts of venom, and the antivenoms produced have shown limited cross neutralization. Here we present data of cross neutralization among monovalent antivenoms raised against M. dumerilii, M...
March 11, 2019: PLoS Neglected Tropical Diseases
J Coral-Casas, A Ricaurte-Fajardo, S J McCormick, I Baracaldo, C A Jimenez, J A Mejia
INTRODUCTION: Reversible cerebral vasoconstriction syndrome (RCVS) is a low incidence disability with a multifactorial etiology and a wide array of symptoms. The main symptom is a thunderclap headache, accompanied sometimes with various neurological deficits that can lead to death. RCVS is usually diagnosed through radiological imaging technology. The treatment includes adopting general measures of monitoring, symptomatic management, identifying the etiology and acting on it to avoid recurrence...
March 16, 2019: Revista de Neurologia
Jonathan S Lefcheck, Anne A Innes-Gold, Simon J Brandl, Robert S Steneck, Ruben E Torres, Douglas B Rasher
There is now a general consensus that biodiversity positively affects ecosystem functioning. This consensus, however, stems largely from small-scale experiments, raising the question of whether diversity effects operate at multiple spatial scales and flow on to affect ecosystem structure in nature. Here, we quantified rates of fish herbivory on algal turf communities across multiple coral reefs spanning >1000 km of coastline in the Dominican Republic. We show that mass-standardized herbivory rates are best predicted by herbivore biomass and herbivore species richness both within (α-diversity) and across sites in the region (β-diversity)...
March 2019: Science Advances
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"