664,292 results match your criteria Natural product communications[Journal]


Percutaneous endoscopic gastrostomy in older patients with and without dementia: survival and ethical considerations.

J Gastroenterol Hepatol 2018 Dec 14. Epub 2018 Dec 14.

Department of Gastroenterology and Hepatology, Erasmus MC University Medical Center, Rotterdam, The Netherlands.

Background And Aim: Notwithstanding multiple recommendations in guidelines, percutaneous endoscopic gastrostomy (PEG)-tube placement is still performed in patients with dementia. In this study we aim to investigate survival in patients with and without dementia after (PEG)-tube placement.

Methods: We conducted a retrospective multicenter study in four different hospitals in The Netherlands. Read More

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December 2018

Prospective Evaluation of Patients With X-Linked Retinoschisis During 18 Months.

Invest Ophthalmol Vis Sci 2018 Dec;59(15):5941-5956

Applied Genetic Technologies Corporation, Alachua, Florida, United States.

Purpose: Prospective evaluation of patients with X-linked retinoschisis (XLRS).

Methods: Fifty-six males XLRS patients, age ≥7 years, had retinal structure and function tests performed every 6 months during an 18-month period.

Results: Best corrected visual acuity (BCVA) was abnormal (mean ± SD logMAR 0. Read More

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December 2018
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Clipping of Basilar Perforator Pure Arterial Malformation Aneurysm: 2-Dimensional Operative Video.

Oper Neurosurg (Hagerstown) 2018 Dec 14. Epub 2018 Dec 14.

University of Miami, Department of Neurosurgery, Miami, Florida.

Pure arterial malformations are rarely-encountered intracranial lesions, often mistaken for arteriovenous malformations. A minority of these lesions may harbor associated aneurysms. In a recent series of 12 patients with pure arterial malformations, 3 patients had associated aneurysms. Read More

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December 2018

Disentangling the effects of disturbance, climate and tree age on xylem hydraulic conductivity of Betula pendula.

Ann Bot 2018 Dec 14. Epub 2018 Dec 14.

Department of Physical Geography and Geoecology, Faculty of Science, Charles University, Prague, Czech Republic.

Background And Aims: The increasing frequency of disturbances in temperate forests is responsible for the greater numbers of trees with mechanically damaged cambial zones. Adjustment of wood anatomical structure to balance between safe and efficient water conductivity is one mechanism trees employ to cope with mechanical damage. The relative role of disturbances, tree age and climate in shaping xylem conduits and affecting xylem hydraulic conductivity remains unknown. Read More

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December 2018

Application of an emulsified polycolloid substrate biobarrier to remediate petroleum-hydrocarbon contaminated groundwater.

Chemosphere 2018 Dec 5;219:444-455. Epub 2018 Dec 5.

Institute of Environmental Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan. Electronic address:

Emulsified polycolloid substrate (EPS) was developed and applied in situ to form a biobarrier for the containment and enhanced bioremediation of a petroleum-hydrocarbon plume. EPS had a negative zeta potential (-35.7 mv), which promoted its even distribution after injection. Read More

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December 2018

Transport of platinum-based pharmaceuticals in water-saturated sand and natural soil: Carboplatin and cisplatin species.

Chemosphere 2018 Dec 4;219:390-399. Epub 2018 Dec 4.

Department of Earth and Planetary Sciences, Weizmann Institute of Science, 7610001, Rehovot, Israel.

This study reports the transport characteristics of the pharmaceutical compounds carboplatin and cisplatin, and their respective derivatives, in saturated sand and soil columns. Pharmaceuticals are recognized as emerging pollutants of soil and water resources, but studies of the transport characteristics of organometallic pharmaceuticals in soil-water environments are rare. A recent study of oxaliplatin transport in natural soil raises the question of whether or not its behavior is representative of all Pt-based pharmaceuticals behavior in soil-water systems. Read More

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December 2018

Metals geochemistry and ecological risk assessment in a tropical mangrove (Can Gio, Vietnam).

Chemosphere 2018 Nov 30;219:365-382. Epub 2018 Nov 30.

Department of Analytical Chemistry, Faculty of Chemistry, University of Science, Vietnam National University, Ho Chi Minh City, Viet Nam; Faculty of Chemical Engineering and Food Technology, Nguyen Tat Thanh University, Viet Nam.

Mangrove sediments act as natural biogeochemical reactors, modifying metals partitioning after their deposition. The objectives of the present study were: to determine distribution and partitioning of metals (Fe, Mn, Ni, Cr, Cu, Co and As) in sediments and pore-waters of Can Gio Mangrove; and to assess their ecological risks based on Risk Assessment Code. Three cores were collected within a mudflat, beneath Avicennia alba and Rhizophora apiculata stands. Read More

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November 2018
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Use of iron ore tailing from tailing dam as catalyst in a fenton-like process for methylene blue oxidation in continuous flow mode.

Chemosphere 2018 Dec 7;219:328-334. Epub 2018 Dec 7.

Reseacher at Federal University of Minas Gerais, Chemistry Department, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, MG, 31270-901, Brazil. Electronic address:

The global demand for iron ore with high iron contents to supply the steel industry is associated, in most countries, with the generation of tailings from mineral processing. The chemical compositions of iron ore tailings (basically FeO and SiO) make them an excellent candidate as a catalyst for advanced oxidation processes (AOPs), especially the Fenton process and its derivatives. Therefore, this paper aimed to transform iron ore tailings from tailing dams into catalysts able to activate HO for the purpose of treating, in a continuous flow, effluents contaminated with organic dyes, employing methylene blue as a model molecule. Read More

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December 2018
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Investigating the physiological mechanisms underlying Salicornia ramosissima response to atmospheric CO enrichment under coexistence of prolonged soil flooding and saline excess.

Plant Physiol Biochem 2018 Dec 6;135:149-159. Epub 2018 Dec 6.

Departamento de Biología Vegetal y Ecología, Facultad de Biología, Universidad de Sevilla, 1095, 41080, Sevilla, Spain.

A 45-days long climatic chamber experiment was design to evaluate the effect of 400 and 700 ppm atmospheric CO treatments with and without soil water logging in combination with 171 and 510 mM NaCl in the halophyte Salicornia ramosissima. In order to ascertain the possible synergetic impact of these factors associate to climatic change in this plant species physiological and growth responses. Our results indicated that elevated atmospheric CO concentration improved plant physiological performance under suboptimal root-flooding and saline conditions plants. Read More

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December 2018

Long-term residential exposure to PM, PM, black carbon, NO, and ozone and mortality in a Danish cohort.

Environ Int 2018 Dec 11;123:265-272. Epub 2018 Dec 11.

Danish Cancer Society Research Center, Strandboulevarden 49, 2100 Copenhagen Ø, Denmark; Department of Environmental Science, Aarhus University, Frederiksborgvej 399, P.O. Box 358, 4000 Roskilde, Denmark. Electronic address:

Air pollutants such as NO and PM have consistently been linked to mortality, but only few previous studies have addressed associations with long-term exposure to black carbon (BC) and ozone (O). We investigated the association between PM, PM, BC, NO, and O and mortality in a Danish cohort of 49,564 individuals who were followed up from enrollment in 1993-1997 through 2015. Residential address history from 1979 onwards was combined with air pollution exposure obtained by the state-of-the-art, validated, THOR/AirGIS air pollution modelling system, and information on residential traffic noise exposure, lifestyle and socio-demography. Read More

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December 2018

Dynamics of fungal diversity and interactions with environmental elements in response to wheat straw biochar amended poultry manure composting.

Bioresour Technol 2018 Dec 8;274:410-417. Epub 2018 Dec 8.

Swedish Centre for Resource Recovery, University of Borås, 50190 Borås, Sweden.

The fungal dynamics and its correlation with physicochemical and gaseous emission were investigated using metagenomics and Heat map illustrator (HEMI). Five different concentrations of wheat straw biochar (WSB) were applied to poultry manure (PM) and composted for 50 days; those without the WSB treatment were used as a control. The results revealed the dominant phyla to be Chytridiomycota, Mucoromycota, Ascomycota and Basidiomycota, while Batrachochytrium, Rhizophagus, Mucor, and Puccinia were the superior genera. Read More

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December 2018

Curcumin relieves depressive-like behaviors via inhibition of the NLRP3 inflammasome and kynurenine pathway in rats suffering from chronic unpredictable mild stress.

Int Immunopharmacol 2018 Dec 10;67:138-144. Epub 2018 Dec 10.

Institute of Clinical Pharmacy and Pharmacology, Jining First People's Hospital, Jining Medical University, Jining, China. Electronic address:

Increasing evidence suggests that inflammation is related to the pathophysiology of depression. Curcumin (CUR), which is a natural component extracted from the rhizome of Curcuma longa, seems to be efficacious in depression treatment. Hence, the present study aims to explore whether the anti-depressive effect of curcumin is connected to its anti-inflammatory features. Read More

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December 2018

Odorous compounds sources and transport from a swine deep-pit finishing operation: A case study.

J Environ Manage 2018 Dec 11;233:12-23. Epub 2018 Dec 11.

USDA Agricultural Research Service, National Laboratory for Agriculture and the Environment, 1015 N. University Boulevard, Ames, IA, 50011, United States.

Odor emissions from swine finishing operations are an air quality issue that affects residents at the local level. A study was conducted at a commercial swine deep-pit finishing operation in central Iowa to monitor odorous compounds emitted and transported offsite. Gaseous compounds were sampled using either sorbent tubes or canisters with GC/MS analysis, and particulates matter (PM) were sampled with high volume samplers and thermally extracted onto sorbent tubes for GC/MS analysis. Read More

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December 2018

Can catchment-scale urban stormwater management measures benefit the stream hydraulic environment?

J Environ Manage 2018 Dec 11;233:1-11. Epub 2018 Dec 11.

Waterway Ecosystem Research Group, School of Ecosystem and Forest Science, The University of Melbourne, Burnley, Victoria, 3121, Australia.

The potential for catchment-scale stormwater control measures (SCMs) to mitigate the impact of stormwater runoff issues and excess stormwater volume is increasingly recognised. There is, however, limited understanding about their potential in reducing in-channel disturbance and improving hydraulic conditions for stream ecosystem benefits. This study investigates the benefits that SCM application in a catchment have on in-stream hydraulics. Read More

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December 2018

Enhanced hypovirus transmission by engineered super donor strains of the chestnut blight fungus, Cryphonectria parasitica, into a natural population of strains exhibiting diverse vegetative compatibility genotypes.

Virology 2018 Dec 11;528:1-6. Epub 2018 Dec 11.

Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV, USA. Electronic address:

Horizontal transmission of virulence attenuating hypoviruses of Cryphonectria parasitica is restricted by an allorecognition system termed vegetative incompatibility (vic). A super donor formulation of two engineered C. parasitica strains (SD328/SD82) with gene disruptions at four of six vic loci transmitted hypovirus to strains in the laboratory independent of vic genotype. Read More

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December 2018

Function and pharmacology of glutamate-gated chloride channel exon 9 splice variants from the diamondback moth Plutella xylostella.

Insect Biochem Mol Biol 2018 Dec 11. Epub 2018 Dec 11.

College of Plant Protection, Nanjing Agricultural University, Nanjing, China. Electronic address:

Glutamate-gated chloride channels (GluCls) are found only in invertebrates and mediate fast inhibitory neurotransmission. The structural and functional diversity of GluCls are produced through assembly of multiple subunits and via posttranscriptional alternations. Alternative splicing is the most common way to achieve this in insect GluCls and splicing occurs primarily at exons 3 and 9. Read More

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December 2018

Scavenging effect of oxidized biochar against the phytotoxicity of lead ions on hydroponically grown chicory: An anatomical and ultrastructural investigation.

Ecotoxicol Environ Saf 2018 Dec 11;170:363-374. Epub 2018 Dec 11.

Department of Agricultural and Biological Engineering, University of Florida, Gainesville, FL 32611, United States; Department of Soil Science, University of Haripur, Haripur 22620, Khyber Pakhtunkhwa, Pakistan.

To evaluate the scavenging effect of functionalized biochar against the phytotoxicity of Pb, original biochar (O-B) was chemically oxidized with either HNO or KMnO to serve as biofilters (O-BF, HNO-BF and KMnO-BF) to hydroponically grown chicory (Cichorium intybus L. var. intybus). Read More

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December 2018

Diversification of the genus Apogon (Lacepède, 1801) (Apogonidae: Perciformes) in the tropical eastern Pacific.

Mol Phylogenet Evol 2018 Dec 11. Epub 2018 Dec 11.

Laboratorio de Biología Acuática, Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, Edificio "R" planta baja, Ciudad Universitaria, Morelia, Michoacán, 58030, México; Laboratorio Nacional de Análisis y Síntesis Ecológica para la Conservación de Recursos Genéticos de México, Escuela Nacional de Estudios Superiores, Unidad Morelia, Universidad Nacional Autónoma de México, Apartado Postal 27-3 (Xangari), 58089, Morelia, Michoacán, México.

We examined the role of geographic barriers and historical processes on the diversification of Apogon species within the tropical eastern Pacific (TEP). Mitochondrial and nuclear DNA sequences were used in Bayesian and Maximum likelihood analyses to generate a phylogenetic hypothesis for Apogon species. Bayesian inferences were used to date the cladogenetic events. Read More

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December 2018

ER stress promotes antitumor effects in BRAFi/MEKi resistant human melanoma induced by natural compound 4-nerolidylcathecol (4-NC).

Pharmacol Res 2018 Dec 11. Epub 2018 Dec 11.

Skin Biology Group, Clinical Chemistry and Toxicology Department, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil. Electronic address:

Melanoma accounts for only 4% of malignant neoplasms of the skin, but is considered the most serious because it is highly deadly. Mutations in the MAPK (Ras-Raf-MEK-ERK) pathway is closely linked to the lack of control of cell proliferation. Especially in melanoma, this pathway has become a target for the development of oncogene-targeted therapies, such as the potent inhibitors of v-Raf murine sarcoma viral oncogene homolog B (BRAFi) and mitogen-activated protein kinase kinase (MEKi). Read More

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December 2018
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Targeting STATs in neuroinflammation: the Road Less Traveled!

Pharmacol Res 2018 Dec 11. Epub 2018 Dec 11.

Department of Pharmacology, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, Iran.

JAK/STAT transduction pathway is a highly conserved pathway implicated in regulating cellular proliferation, differentiation, survival and apoptosis. Dysregulation of this pathway is involved in the onset of autoimmune, haematological, oncological, metabolic and neurological diseases. Over the last few years, the research of anti-neuroinflammatory agents has gained considerable attention. Read More

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December 2018
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Carrier-free nanoparticles of cathepsin B-cleavable peptide-conjugated doxorubicin prodrug for cancer targeting therapy.

J Control Release 2018 Dec 11. Epub 2018 Dec 11.

Biomedical Research Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Republic of Korea. Electronic address:

Cancer nanomedicine using nanoparticle-based delivery systems has shown outstanding promise in recent decades for improving anticancer treatment. However, limited targeting efficiency, low drug loading efficiency and innate toxicity of nanoparticles have caused severe problems, leaving only a few available in the clinic. Here, we newly developed carrier-free nanoparticles of cathepsin B-cleavable peptide (Phe-Arg-Arg-Gly; FRRG)-conjugated doxorubicin (DOX) prodrug (FRRG-DOX) that formed a stable nanoparticle structure with an average diameter of 213 nm in aqueous condition. Read More

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December 2018
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Applications of π-π stacking interactions in the design of drug-delivery systems.

J Control Release 2018 Dec 11. Epub 2018 Dec 11.

College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea. Electronic address:

Noncovalent forces are of considerable importance in the formation of self-assembled drug-delivery systems. In addition to non-destructively linking the delivery vehicle and guest drug, they provide multiple advantages, including protecting the structure of the drug, maintaining its functional effects, and facilitating its release. In particular, π-π stacking interactions have potential application in a comprehensive range of biomedical and biotechnological fields. Read More

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December 2018

Linking biodiversity to ecosystem services supply: Patterns across aquatic ecosystems.

Sci Total Environ 2018 Dec 3;657:517-534. Epub 2018 Dec 3.

Department of Biology & CESAM, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.

Global initiatives have been increasingly focusing on mainstreaming the values of biodiversity and ecosystem services into decision-making at all levels. Due to the accelerated rate at which biodiversity is declining and its consequences for the functioning of ecosystems and subsequently, the services they provide, there is need to develop comprehensive assessments of the services and the benefits nature delivers to society. Based on expert evaluation, we identified relevant flow linkages in the supply-side of the socio-ecological system, i. Read More

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December 2018
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Spatiotemporal decomposition and risk determinants of hand, foot and mouth disease in Henan, China.

Sci Total Environ 2018 Dec 5;657:509-516. Epub 2018 Dec 5.

China National Center for Food Safety Risk Assessment, Beijing 100022, China. Electronic address:

Hand, foot and mouth disease (HFMD) remains an increasing public health concern. The spatiotemporal variation of HFMD can be represented from multiple-perspectives, and it may be driven by different dominant factors. In this study, the HFMD cases in children under the age of five years in each county in Henan province, China, from 2009 to 2013 were assessed to explore the integrative spatiotemporal patterns of HFMD and investigate their driving factors. Read More

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December 2018
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Prediction of CH emissions from potential natural wetlands on the Tibetan Plateau during the 21st century.

Sci Total Environ 2018 Nov 28;657:498-508. Epub 2018 Nov 28.

Sichuan Climate Centre, Chengdu 610071, China.

The alpine wetlands on the Tibetan Plateau (TP) are ecosystems vulnerable to global climate change. It has been recognized that future climate change may have a significant impact on methane (CH) emissions from the plateau, while less attention has been paid to predicting temporal and spatial variations in CH emissions from TP natural wetlands. In this study, we used an integrated model framework based on the CH4MOD, TOPMODEL and TEM models to predict CH emissions from potential natural wetlands on the TP under IPCC AR5 scenarios from 2006 to 2100. Read More

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November 2018
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The effects of filters for an intelligent air pollutant control system considering natural ventilation and the occupants.

Sci Total Environ 2018 Dec 5;657:410-419. Epub 2018 Dec 5.

Department of Architecture and Architectural Engineering, Yonsei University, Seoul 03722, Republic of Korea.

Experimental analysis was conducted on the indoor air pollutant concentration using natural ventilation and filters. The study targeted two office rooms each of which was occupied by four people, and with the same outdoor environments. A non-woven fabric filter (room A) and an electrostatic filter (room B) were installed on the window frame, and the indoor air pollutant concentration and indoor climate factors were monitored based on the number of occupants and the occupants' activities. Read More

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December 2018

Integrated chemical exposure assessment of coastal green turtle foraging grounds on the Great Barrier Reef.

Sci Total Environ 2018 Nov 22;657:401-409. Epub 2018 Nov 22.

Queensland Alliance for Environmental Health Sciences (QAEHS), The University of Queensland, 20 Cornwall St, Woolloongabba, Qld 4102, Australia.

The Great Barrier Reef receives run-off from 424,000 km catchment area across coastal Queensland, incorporating diffuse agricultural run-off, and run-off point sources of land-based chemical pollutants from urban and industrial development. Marine biota, such as green turtles (Chelonia mydas), are exposed to these diverse chemical mixtures in their natural environments, and the long term effects on turtle and ecosystem health remain unknown. This study was part of a larger multi-disciplinary project characterising anthropogenic chemical exposures from the marine environment and turtle health. Read More

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November 2018

Fog collection as a strategy to sequester carbon in drylands.

Sci Total Environ 2018 Dec 5;657:391-400. Epub 2018 Dec 5.

Department of Agricultural, Food and Forestry Systems (GESAAF), Università degli Studi di Firenze, Florence, Italy. Electronic address:

Advection fog is the sole source of water for many near-the-sea arid areas worldwide such as the lomas, i.e. fog-dependant landscapes of the coastal zone of Peru and Northern Chile, where deforestation occurred since 16th century, leading to a progressive and severe desertification. Read More

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December 2018
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Permafrost landslides promote soil CO emission and hinder C accumulation.

Sci Total Environ 2018 Dec 4;657:351-364. Epub 2018 Dec 4.

GFZ German Research Centre for Geosciences, Section Geomicrobiology, Telegrafenberg C-425, 14473 Potsdam, Germany; Institute of Earth and Environmental Sciences, University of Potsdam, 14476 Potsdam, Germany.

Landslides are common in high-latitude forest ecosystems that have developed on permafrost. The most vulnerable areas in the permafrost territories of Siberia occur on the south-facing slopes of northern rivers, where they are observed on about 20% of the total area of river slopes. Landslide disturbances will likely increase with climate change especially due to increasing summer-autumn precipitation. Read More

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December 2018

Contributions of climate change and vegetation greening to evapotranspiration trend in a typical hilly-gully basin on the Loess Plateau, China.

Sci Total Environ 2018 Nov 27;657:325-339. Epub 2018 Nov 27.

Key Laboratory of Water Cycle and Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.

Significant increases in vegetation cover on the Loess Plateau since the early 2000s have been well documented. However, the relevant hydrological effects are still unclear. Here, we investigated the changes in actual evapotranspiration (ET) from 2000 to 2016 and related them to climate change and vegetation greening in Yanhe River basin (YRB), a typical hilly-gully basin on the Loess Plateau, by using the remote-sensing based VIP model. Read More

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November 2018

Uridine diphosphate release mechanism in O-N-acetylglucosamine (O-GlcNAc) transferase catalysis.

Biochim Biophys Acta Gen Subj 2018 Dec 11. Epub 2018 Dec 11.

The Key Laboratory of Natural Medicine and Immuno-Engineering, Henan University, Kaifeng 475004, People's Republic of China. Electronic address:

O-linked N-acetylglucosamine transferase (OGT) is an essential enzyme that catalyzes the covalent bonding of N-acetylglucosamine (GlcNAc) to the hydroxyl group of a serine or threonine in the target protein. It plays an important role in many important cellular physiological catalytic reactions. Here, we determine the binding mode and the binding free energy of the OGT product (uridine diphosphate, UDP) as well as the hydrogen-bond-dependent release mechanism using extensive molecular dynamic simulations. Read More

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December 2018

Dissecting the Thermodynamic Contributions of the Charged Residues in the Membrane Anchoring of Bcl-xl C-Terminal Domain.

Chem Phys Lipids 2018 Dec 11. Epub 2018 Dec 11.

Bioinformatics Centre, Bose Institute, P-1/12 C.I.T. Scheme VII M, Kolkata, 700054, India. Electronic address:

The C-terminal helix of the Bcl-xl is known to initiate the membrane insertion of the protein by anchoring into the mitochondrial outer membrane. The C-terminal charged residues of that helix, R232, and K233, are reported to have an important structural role in the process of insertion. The present work provides a quantitative understanding of the thermodynamic contribution of these residues on the membrane insertion profile from Adaptive Biasing Force based MD simulations of 2. Read More

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December 2018

Emergent neural turing machine and its visual navigation.

Neural Netw 2018 Nov 27;110:116-130. Epub 2018 Nov 27.

Department of Computer Science and Engineering, Michigan State University, East Lansing, MI, 48824, USA; Cognitive Science Program, Michigan State University, East Lansing, MI, 48824, USA; Neuroscience Program, Michigan State University, East Lansing, MI, 48824, USA.

Traditional Turing Machines (TMs) are symbolic whose hand-crafted representations are static and limited. Developmental Network 1 (DN-1) uses emergent representation to perform Turing Computation. But DN-1 lacks hierarchy in its internal representations, and is hard to handle the complex visual navigation tasks. Read More

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November 2018

Polyphyly in 16S rRNA-based LVTree Versus Monophyly in Whole-genome-based CVTree.

Genomics Proteomics Bioinformatics 2018 Dec 11. Epub 2018 Dec 11.

T-Life Research Center, Department of Physics, Fudan University, Shanghai 200433, China.

We report an important but long-overlooked manifestation of low-resolution power of 16S rRNA sequence analysis at the species level, namely, in 16S rRNA-based phylogenetic trees polyphyletic placements of closely-related species are abundant compared to those in genome-based phylogeny. This phenomenon makes the demarcation of genera within many families ambiguous in the 16S rRNA-based taxonomy. In this study, we reconstructed phylogenetic relationship for more than ten thousand prokaryote genomes by using the CVTree method, which is based on whole-genome information. Read More

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December 2018

Ribosomal protein eL42 contributes to the catalytic activity of the yeast ribosome at the elongation step of translation.

Biochimie 2018 Dec 11. Epub 2018 Dec 11.

Sorbonne Université, Campus Pierre et Marie Curie, Laboratoire "Enzymologie de l'ARN", SU-UR6; (Bâtiment B); Case courrier 60 - 4, Place Jussieu, F-75252, Paris Cedex 05, France.

The GGQ minidomain of the ribosomal protein eL42 was previously shown to contact the CCA-arm of P-site bound tRNA in human ribosome, indicating a possible involvement of the protein in the catalytic activity. Here, using Schizosaccharomyces pombe (S. pombe) cells, we demonstrate that the GGQ minidomain and neighboring region of eL42 is critical for the ribosomal function. Read More

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December 2018

Geraniol protects against lipopolysaccharide and D-galactosamine-induced fulminant hepatic failure by activating PPARγ.

Microb Pathog 2018 Dec 11. Epub 2018 Dec 11.

Department of Infectious Diseases, The Second Xiangya Hospital of Central South University, Changsha, Hunan, 410011, China. Electronic address:

Geraniol (GOH), a natural component of plant essential oils, exhibits potent antioxidant and anti-inflammatory properties. The aim of this study was to assess the protective effects and mechanisms of GOH on lipopolysaccharide (LPS)/d-galactosamine (D-GalN)-induced fulminant hepatic failure (FHF). Mice were treated with GOH (12. Read More

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December 2018
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Advanced chemical peels: phenol-croton oil peel.

J Am Acad Dermatol 2018 Dec 11. Epub 2018 Dec 11.

Department of Dermatology, Emory University School of Medicine, Atlanta, GA.

Once considered the gold standard for deep facial resurfacing, the classical Baker-Gordon phenol-croton oil peel has largely been replaced by formulas with lower concentrations of phenol and croton oil. The improved safety profile of deep peels has ushered in a new era in chemical peeling. Wrinkles can be improved and skin tightened with more subtle and natural results. Read More

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December 2018
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Biochemical characterization of a native group III trypsin ZT from Atlantic cod (Gadus morhua).

Int J Biol Macromol 2018 Dec 11. Epub 2018 Dec 11.

Faculty of Food Science and Nutrition, School of Health Sciences, University of Iceland. University of Iceland, Sæmundargata 2, 101 Reykjavik, Iceland. Electronic address:

Atlantic cod trypsin ZT is biochemically characterized for the first time in this report in comparison to a group I trypsin (cod trypsin I). To our knowledge, trypsin ZT is the first thoroughly characterized group III trypsin. A more detailed understanding of trypsin ZT biochemistry may give insight into its physiological role as well as its potential use within the biotechnology sector. Read More

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December 2018

Polyamine analogue QMA attenuated ischemic injury in MCAO rats via ERK and Akt activated Nrf2/HO-1 signaling pathway.

Eur J Pharmacol 2018 Dec 11. Epub 2018 Dec 11.

Key Laboratory of Natural Medicine and Immune Engineering, Henan University, Kaifeng 475001, People's Republic of China. Electronic address:

Previous research showed N-(quinolin-2-ylmethy) butane-1, 4-diamine (QMA), a polyamine analogue, was efficacious in the prevention of oxidative injury in models of cerebral ischemia. The present study manifested that pretreatment with QMA attenuated ischemic damage accompanying up regulation of Nuclear factor erythroid 2‑related factor (Nrf2), Heme oxygenase‑1 (HO‑1), p-ERK and p-Akt in cerebral cortex tissues of middle cerebral artery occlusion (MCAO) rats and oxygen-glucose deprivation (OGD)-treated PC12 cells. Further more, treatment with LY294002 (specific PI3K inhibitor), PD98059 (specific ERK inhibitor), brusatol (specific Nrf2 inhibitor) and SnPP (specific HO-1 inhibitor) deprived almost all the effects of QMA in MCAO rats and OGD-treated PC12 cells. Read More

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December 2018

The human visual system estimates angle features in an internal reference frame: A computational and psychophysical study.

J Vis 2018 Dec;18(13):10

Shanghai Key Laboratory of Brain Functional Genomics, Key Laboratory of Brain Functional Genomics, Ministry of Education, School of Psychology and Cognitive Science, East China Normal University, Shanghai, China.

Angle perception is an important middle-level visual process, combining line features to generate an integrated shape percept. Previous studies have proposed two theories of angle perception-a combination of lines and a holistic feature following Weber's law. However, both theories failed to explain the dual-peak fluctuations of the just-noticeable difference (JND) across angle sizes. Read More

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December 2018

Detection of Burkholderia in the seeds of Psychotria punctata (Rubiaceae) - Microscopic evidence for vertical transmission in the leaf nodule symbiosis.

PLoS One 2018 14;13(12):e0209091. Epub 2018 Dec 14.

Natural History Museum, University of Oslo, Oslo, Norway.

Background And Aims: The bacterial leaf nodule symbiosis is a close interaction between endophytes and their plant hosts, mainly within the coffee family. The interaction between Rubiaceae species and Burkholderia bacteria is unique due to its obligate nature, high specificity, and predominantly vertical transmission of the endophytes to the next generation of host plants. This vertical transmission is intriguing since it is the basis for the uniqueness of the symbiosis. Read More

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December 2018

Genome survey sequencing for the characterization of genetic background of Dracaena cambodiana and its defense response during dragon's blood formation.

PLoS One 2018 14;13(12):e0209258. Epub 2018 Dec 14.

Key Laboratory of Biology and Genetic Resources of Tropical Crops of Ministry of Agriculture and Rural Affairs, Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, People's Republic of China.

Dragon's blood collected from the genus Dracaena is used as a renowned traditional medicine in various cultures worldwide. However, the genetics of the genus Dracaena and the formation mechanism of dragon's blood remain poorly understood. Here, we generate the first draft genome reference assembly of an elite Chinese Dracaena species, Dracaena cambodiana, from next-generation sequencing data with 89. Read More

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December 2018

Interdependences between finger movement direction and haptic perception of oriented textures.

PLoS One 2018 14;13(12):e0208988. Epub 2018 Dec 14.

Department of General Psychology, Justus-Liebig University, Giessen, Germany.

Although the natural haptic perception of textures includes active finger movements, it is unclear how closely perception and movements are linked. Here we investigated this question using oriented textures. Textures that are composed of periodically repeating grooves have a clear orientation defined by the grooves. Read More

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December 2018

Influence of pathway topology and functional class on the molecular evolution of human metabolic genes.

PLoS One 2018 14;13(12):e0208782. Epub 2018 Dec 14.

Institute of Systems Biology, Department of Biochemistry and Molecular Biology, University of Valencia, Valencia, Spain.

Metabolic networks comprise thousands of enzymatic reactions functioning in a controlled manner and have been shaped by natural selection. Thanks to the genome data, the footprints of adaptive (positive) selection are detectable, and the strength of purifying selection can be measured. This has made possible to know where, in the metabolic network, adaptive selection has acted and where purifying selection is more or less strong and efficient. Read More

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December 2018

"Marriage improves neuroticism in Chinese newlyweds: Communication and marital affect as mediators": Correction to Tong et al. (2018).

Authors:

J Fam Psychol 2018 Dec 13. Epub 2018 Dec 13.

Reports an error in "Marriage improves neuroticism in Chinese newlyweds: Communication and marital affect as mediators" by Wei Tong, Ping Li, Nan Zhou, Qiong He, Xiaoyan Ju, Jing Lan, Xiaomin Li and Xiaoyi Fang (, 2018[Oct], Vol 32[7], 986-991). In the original article, a funding source was unintentionally omitted from the author note. The omitted acknowledgement should have read "This research was supported by National Natural Science Foundation of China Grant 31571157 to Xiaoyi Fang. Read More

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December 2018

Preference for attractive faces is species-specific.

J Comp Psychol 2018 Dec 13. Epub 2018 Dec 13.

Universite Grenoble Alpes.

Studies on facial attractiveness in human adults, infants, and newborns have consistently reported a visual preference for faces rated as attractive compared with faces rated as unattractive. Biological accounts of facial attractiveness have typically presented such preferences as arising from adaptations for mate choice or as by-products of general sensory bias. In this cross-species study, we examined whether explicit ratings of attractiveness made by human judges would predict implicit visual preferences in other humans and also in rhesus macaques and, if they do, whether such preferences would extend beyond conspecific faces. Read More

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December 2018

A self-regulation perspective on how and when regulatory focus differentially relates to citizenship behaviors.

J Appl Psychol 2018 Dec 13. Epub 2018 Dec 13.

School of Business Administration.

Although previous research suggests that regulatory focus matters for organizational citizenship behaviors, it is unclear how promotion and prevention focus relate to such behaviors. Integrating regulatory focus theory with theories of self-regulation, we propose a conceptual model that links trait promotion and prevention foci with specific citizenship behaviors through an emotion-related self-regulation mechanism. Using a sample of 227 nurses working in a hospital context, we observed that trait promotion focus and trait prevention focus predict helping and voice via differential effects on emotional exhaustion. Read More

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December 2018

Irradiation-Induced Cobaloxime-Catalyzed C-H Monofluoroalkylation of Styrenes at Room Temperature.

Org Lett 2018 Dec 14. Epub 2018 Dec 14.

Anhui Province Key Laboratory of Advance Catalytic Materials and Reaction Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei 230009 , P. R. China.

A cobaloxime-catalyzed photochemical synthesis of allyl monofluorides from styrenes is described herein. This method is characterized by mild reaction conditions, low-cost catalyst, and broad substrate scope. Furthermore, this convenient method will provide a facile synthesis toward novel monofluoroalkylated natural product and pharmaceutical derivatives. Read More

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December 2018

Enhanced photocatalytic simultaneous removals of Cr(VI) and bisphenol A over Co(II)-modified TiO2.

Langmuir 2018 Dec 14. Epub 2018 Dec 14.

To enhance the electron-hole separation and boost the practical performance of commercial titania (Degussa P25) under natural solar light, in this work, P25 was modified with Co(II) species (CoP25) through post-treatment with decomposition of Co-EDTA precursors in a wet chemical anchoring process. With appropriate Co(II) loading amount as molecular cocatalyst, the resulted CoP25-4 showed significantly improved photocatalytic performance for Cr(VI) reduction and bisphenol A (BPA) oxidation under UV-light irradiation. The co-existence of Cr(VI) and BPA promoted mutually the degradation of both pollutants. Read More

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December 2018

Enantiopure Aromatic Saddles Bearing the Fenestrindane Core.

J Org Chem 2018 Dec 14. Epub 2018 Dec 14.

The synthesis of enantiomerically pure, configurationally stable fenestrindane-based polyaromatic compounds with saddle-like structures is reported. Seven racemic fenestrane synthetic precursors were first screened by chiral HPLC for resolvability into enantiomers. Among the three resolvable precursors, a tribenzofenestrene derivative was resolved on a semipreparative scale, and the absolute configuration of the more slowly eluting enantiomer was established by X-ray crystallography. Read More

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December 2018
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