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https://www.readbyqxmd.com/read/29161650/how-the-morphological-properties-of-mentha-longifolia-l-huds-may-be-affected-by-geographical-differences
#1
Mohammad Mohammadi, Hossein Ali Asadi-Gharneh
With respect to the benefits of medicinal plants for human health and their use as food, they are extensively being researched and planted in different parts of the world including Iran. Among the most important parameters, which may affect the growth and the yield of medicinal plants is their geographical (ecotype) properties. Accordingly, a research work was proposed to investigate the effects of 10 different regions or ecotypes on the morphological properties of pennyroyal [Mentha longifolia. (L.) Huds.] from the Lamiaceae family in one of the Iranian provinces, namely Ilam...
October 28, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29161576/unraveling-physiological-biochemical-and-molecular-mechanisms-involved-in-olive-olea-europaea-l-cv-ch%C3%A3-toui-tolerance-to-drought-and-salt-stresses
#2
Mariem Ben Abdallah, Dalila Trupiano, Antonella Polzella, Elena De Zio, Mauro Sassi, Andrea Scaloni, Mokhtar Zarrouk, Nabil Ben Youssef, Gabriella Stefania Scippa
Olive (Olea europaea L.) is an economically important crop for the Mediterranean basin, where prolonged drought and soil salinization may occur. This plant has developed a series of mechanisms to tolerate and grow under these adverse conditions. By using an integrated approach, we described in Chétoui olive cultivar the changes in plant growth, oxidative damage and osmolyte accumulation in leaves, in combination with corresponding changes in physiological parameters and proteome. Our results showed, under both stress conditions, a greater growth reduction of the aboveground plant organs than of the underground counterparts...
November 10, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/29160934/highly-efficient-perovskite-solar-cells-based-on-zn2ti3o8-nanoparticles-as-electron-transporting-material-with-efficiency-over-17
#3
Zhong-Ning Chen, Aiying Pang, Deli Shen, Mingdeng Wei
Developing ternary metal oxides as electron transporting layers (ETL) for perovskite solar cell is highly challenging in the field of third-generation photovoltaics. In this study, highly mesoporous zinc titanate oxide (Zn2Ti3O8) scaffold synthesized by ion-exchange method has been successfully used as ETL for the fabrication of methyl ammonium lead halide (CH3NH3PbI3) perovskite solar cells. The optimized devices exhibit 17.21% power conversion efficiency (PCE) with open circuit voltage (Voc) of 1.02 V, short-circuit current density (Jsc) of 21...
November 21, 2017: ChemSusChem
https://www.readbyqxmd.com/read/29160911/simultaneous-use-of-erythropoietin-and-lfm-a13-as-a-new-therapeutic-approach-for-colorectal-cancer
#4
Anna Tankiewicz-Kwedlo, Justyna Magdalena Hermanowicz, Tomasz Domaniewski, Krystyna Pawlak, Małgorzata Rusak, Anna Pryczynicz, Arkadiusz Surazynski, Tomasz Kaminski, Adam Kazberuk, Dariusz Pawlak
BACKGROUND AND PURPOSE: Bruton's tyrosine kinase (BTK) is a non-receptor tyrosine kinase involved in the activation of signaling pathways responsible for cell maturation and viability. BTK has previously been reported to be overexpressed in colon cancers. This kind of cancer is often accompanied by anemia, which is treated with an erythropoietin supplement. The goal of the present study was to assess the effects of combination therapy with erythropoietin beta (Epo) and LFM-A13 (BTK inhibitor) on colon cancer in in vitro and in vivo models...
November 21, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29160701/flux-crystal-growth-of-the-re2ru3ge5-re-la-ce-nd-gd-tb-series-and-their-magnetic-and-metamagnetic-transitions
#5
Daniel E Bugaris, Christos D Malliakas, Sergey L Bud'ko, Nicholas P Calta, Duck Young Chung, Mercouri G Kanatzidis
Previously synthesized only as powders, single crystals of the RE2Ru3Ge5 (RE = La, Ce, Nd, Gd, Tb) series of compounds have now been obtained from molten In. These materials crystallize with the U2Co3Si5-type structure in orthorhombic space group Ibam with lattice parameters a ≈ 10.00-9.77 Å (La-Tb), b ≈ 12.51-12.35 Å, and c ≈ 5.92-5.72 Å. The structure is a three-dimensional framework consisting of RuGe5 and RuGe6 units, as well as Ge-Ge zigzag chains. This structure type and those of the other five (Sc2Fe3Si5, Lu2Co3Si5, Y2Rh3Sn5, Yb2Ir3Ge5, and Yb2Pt3Sn5) to compose the RE2T3X5 phase space are discussed in depth...
November 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29160127/the-fetal-programming-effect-of-prenatal-smoking-on-igf1r-and-igf1-methylation-is-organ-and-sex-specific
#6
Karolin F Meyer, Rikst Nynke Verkaik-Schakel, Wim Timens, Lester Kobzik, Torsten Plösch, Machteld N Hylkema
The impact of prenatal smoke exposure (PSE) on DNA methylation has been demonstrated in blood samples from children of smoking mothers, but evidence for sex-dependent smoke-induced effects is limited. As the identified differentially methylated genes can be associated with developmental processes, and insulin-like growth factors (IGFs) play a critical role in prenatal tissue growth, we hypothesized that PSE induces fetal programming of Igf1r and Igf1. Using a mouse model of smoking during pregnancy, we show that PSE alters promoter methylation of Igf1r and Igf1 and deregulates their gene expression in lung and liver of fetal (E17...
November 21, 2017: Epigenetics: Official Journal of the DNA Methylation Society
https://www.readbyqxmd.com/read/29159450/lower-dietary-phosphorus-supply-in-pigs-match-both-animal-welfare-aspects-and-resource-efficiency
#7
Michael Oster, Christian Gerlinger, Kaja Heide, Franziska Just, Luisa Borgelt, Petra Wolf, Christian Polley, Brigitte Vollmar, Eduard Muráni, Siriluck Ponsuksili, Klaus Wimmers
Dietary phosphorus frequently exceeds age-specific requirements and pig manure often contains high phosphorus load which causes environmental burden at regional scales. Therefore, feeding strategies towards improved phosphorus efficiency and reduced environmental phosphorus load have to be developed. A 5-week feeding trial was conducted: piglets received medium, lower (-25%), or higher (+25%) amounts of phosphorus and calcium. Dietary responses were reflected by performance parameters, bone characteristics, and molecular data retrieved from serum, intestinal mucosa, and kidney cortex (p < 0...
November 20, 2017: Ambio
https://www.readbyqxmd.com/read/29159223/programs-for-the-calculation-of-the-spinodal-decomposition-growth-rate-and-the-spinodal-gap-in-nanoparticles
#8
Evgeny Pogorelov, Julia Kundin
This data article contains the programs for the calculation of the spinodal decomposition growth rate and for the modeling of the spinodal gap and concentration profiles in nanoparticles which were used in our article (Pogorelov et al., 2017) [1]. The modeling is based on the mathematical model of spinodal phase decomposition with intercalation rate conditions on the boundaries (Singh et al., 2008) [2]. The maximal growth rate and the parameters of the concentration wave function can be evaluated for a fixed mean composition and intercalation rate...
December 2017: Data in Brief
https://www.readbyqxmd.com/read/29159147/osmotic-conditions-could-promote-scfv-antibody-production-in-the-escherichia-coli-hb2151
#9
Ali Mesgari-Shadi, Mohammad Hossein Sarrafzadeh
Introduction: Single chain variable fragment (scFv) antibodies are reduced forms of the whole antibodies that could be regarded as an alternative tool for diagnostic and therapeutic purposes. The optimization of processes and environmental conditions is necessary to increase the production yields and enhance the productivity. This can result in a cost-effective process and respond to the high demand for these antibodies. Methods: In this research, physical and chemical factors influencing the batch fermentation was investigated in 50 mL batch tubes using minimum media to find the optimum conditions for production of a single chain variable fragment antibody in the Escherichia coli HB2151...
2017: BioImpacts: BI
https://www.readbyqxmd.com/read/29158611/phylogeny-of-xerophilic-aspergilli-subgenus-aspergillus-and-taxonomic-revision-of-section-restricti
#10
F Sklenář, Ž Jurjević, P Zalar, J C Frisvad, C M Visagie, M Kolařík, J Houbraken, A J Chen, N Yilmaz, K A Seifert, M Coton, F Déniel, N Gunde-Cimerman, R A Samson, S W Peterson, V Hubka
Aspergillus section Restricti together with sister section Aspergillus (formerly Eurotium) comprises xerophilic species, that are able to grow on substrates with low water activity and in extreme environments. We adressed the monophyly of both sections within subgenus Aspergillus and applied a multidisciplinary approach for definition of species boundaries in sect. Restricti. The monophyly of sections Aspergillus and Restricti was tested on a set of 102 isolates comprising all currently accepted species and was strongly supported by Maximum likelihood (ML) and Bayesian inferrence (BI) analysis based on β-tubulin (benA), calmodulin (CaM) and RNA polymerase II second largest subunit (RPB2) loci...
September 2017: Studies in Mycology
https://www.readbyqxmd.com/read/29158597/a-new-paradigm-in-modelling-the-evolution-of-a-stand-via-the-distribution-of-tree-sizes
#11
Petras Rupšys, Edmundas Petrauskas
Our study focusses on investigating a modern modelling paradigm, a bivariate stochastic process, that allows us to link individual tree variables with growth and yield stand attributes. In this paper, our aim is to introduce the mathematics of mixed effect parameters in a bivariate stochastic differential equation and to describe how such a model can be used to aid our understanding of the bivariate height and diameter distribution in a stand using a large dataset provided by the Lithuanian National Forest Inventory (LNFI)...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29158393/dynamics-and-control-of-gold-encapped-gallium-arsenide-nanowires-imaged-by-4d-electron-microscopy
#12
Bin Chen, Xuewen Fu, Jau Tang, Mykhaylo Lysevych, Hark Hoe Tan, Chennupati Jagadish, Ahmed H Zewail
Eutectic-related reaction is a special chemical/physical reaction involving multiple phases, solid and liquid. Visualization of a phase reaction of composite nanomaterials with high spatial and temporal resolution provides a key understanding of alloy growth with important industrial applications. However, it has been a rather challenging task. Here, we report the direct imaging and control of the phase reaction dynamics of a single, as-grown free-standing gallium arsenide nanowire encapped with a gold nanoparticle, free from environmental confinement or disturbance, using four-dimensional (4D) electron microscopy...
November 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29158193/egfr-gene-copy-number-by-fish-may-predict-outcome-of-necitumumab-in-squamous-lung-carcinomas-analysis-from-the-squire-study
#13
Carlo Genova, Mark A Socinski, Rebecca R Hozak, Gu Mi, Raffael Kurek, Javad Shahidi, Luis Paz-Ares, Nick Thatcher, Christopher J Rivard, Marileila Varella-Garcia, Fred R Hirsch
INTRODUCTION: Necitumumab is a monoclonal antibody targeting the epidermal growth factor receptor (EGFR). In the SQUIRE trial, the addition of necitumumab to chemotherapy in squamous cell lung cancer (SCC) significantly improved overall survival (OS) (HR=0.84); in a post-hoc analysis, EGFR copy number gain determined by fluorescence in situ hybridization (FISH) showed a trend towards improved OS (HR=0.70) and progression-free survival (PFS) (HR=0.71) with the addition of necitumumab. We present the analysis of granular EGFR-FISH data from SQUIRE to examine the potential predictive role of high polysomy and gene amplification as both were included in the "FISH-positive" category...
November 17, 2017: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/29158018/centile-curves-for-velocity-time-integral-times-heart-rate-as-a-function-of-ventricular-length-the%C3%A2-use-of-minute-distance-is-advantageous-to%C3%A2-enhance-clinical-reliability-in-children
#14
Anna Solinski, Elmar Klusmeier, Jan-Pit Horst, Hermann Körperich, Nikolaus A Haas, Deniz Kececioglu, Kai Thorsten Laser
BACKGROUND: The generation of velocity-time integrals (VTIs) from Doppler signals is an essential component of standard echocardiographic investigations. The most effective algorithm to compensate for growth in children has, however, not yet been identified. This study was initiated to establish pediatric reference values for VTI and to enhance the interpretability of those values, considering technical and physiological factors. METHODS: The echocardiographic data sets of healthy children and adolescents (N = 349; age range, 0-20 years) were recorded in a prospective approach and subsequently analyzed...
November 18, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/29156355/biomechanical-evaluation-of-a-personalized-external-aortic-root-support-applied-in-the-ross-procedure
#15
Julie Vastmans, Heleen Fehervary, Peter Verbrugghe, Tom Verbelen, Emma Vanderveken, Jos Vander Sloten, Tom Treasure, Filip Rega, Nele Famaey
A commonly heard concern in the Ross procedure, where a diseased aortic valve is replaced by the patient's own pulmonary valve, is the possibility of pulmonary autograft dilatation. We performed a biomechanical investigation of the use of a personalized external aortic root support or exostent as a possibility for supporting the autograft. In ten sheep a short length of pulmonary artery was interposed in the descending aorta, serving as a simplified version of the Ross procedure. In seven of these cases, the autograft was supported by an external mesh or so-called exostent...
November 11, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29156303/assessment-of-nickel-bioavailability-through-chemical-extractants-and-red-clover-trifolium-pratense-l-in-an-amended-soil-related-changes-in-various-parameters-of-red-clover
#16
Ali Khan Shahbaz, Muhammad Iqbal, Abdul Jabbar, Sabir Hussain, Muhammad Ibrahim
Application of immobilizing agents may efficiently reduce the bioavailability of nickel (Ni) in the soil. Here we report the effect of biochar (BC), gravel sludge (GS) and zeolite (ZE) as a sole treatment and their combinations on the bioavailability of Ni after their application into a Ni-polluted soil. The bioavailability of Ni after the application of immobilizing agents was assessed through an indicator plant (red clover) and chemical indicators of bioavailability like soil water extract (SWE), DTPA and Ca(NO3)2 extracts...
November 17, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29156271/fresh-and-composted-industrial-sludge-restore-soil-functions-in-surface-soil-of-degraded-agricultural-land
#17
Muhammad Saleem Arif, Muhammad Riaz, Sher Muhammad Shahzad, Tahira Yasmeen, Muhammad Ashraf, Muhammad Siddique, Muhammad Salman Mubarik, Luca Bragazza, Alexandre Buttler
A field study was conducted to test the potential of 5-year consecutive application of fresh industrial sludge (FIS) and composted industrial sludge (CIS) to restore soil functions at surface (0-15cm) and subsurface (15-30cm) of the degraded agricultural land. Sludge amendments increased soil fertility parameters including total organic carbon (TOC), soil available nitrogen (SAN), soil available phosphorus (SAP) and soil available potassium (SAK) at 0-15cm depth. Soil enzyme activities i.e. dehydrogenase (DHA), β-glucosidase (BGA) and alkaline phosphatase (ALp) were significantly enhanced by FIS and CIS amendments in surface soil...
November 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29155211/modeling-squid-axon-k-channel-by-a-nucleation-and-growth-kinetic-mechanism
#18
Rolando Guidelli, Lucia Becucci
A kinetic model accounting for all salient features of the K(+) channel of the squid giant axon, including the rising phase of the ON gating charge and theCole-Moore effect, is provided. Upon accounting for a significant feature distinguishing K(+), Na(+) andCa(2+) channels from channel-forming peptides modeled in our previous 2016 BBA paper, the nucleation-and-growth kinetic model developed therein is extended to simulate ON ionic and gating currents of the K(+) channel of the squid giant axon at different depolarization potentials by the use of only two free parameters...
November 16, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29155133/seirs-epidemics-with-disease-fatalities-in-growing-populations
#19
REVIEW
Tom Britton, Désiré Ouédraogo
An SEIRS epidemic with disease fatalities is introduced in a growing population (modelled as a super-critical linear birth and death process). The study of the initial phase of the epidemic is stochastic, while the analysis of the major outbreaks is deterministic. Depending on the values of the parameters, the following scenarios are possible. i) The disease dies out quickly, only infecting few; ii) the epidemic takes off, the number of infected individuals grows exponentially, but the fraction of infected individuals remains negligible; iii) the epidemic takes off, the number of infected grows initially quicker than the population, the disease fatalities diminish the growth rate of the population, but it remains super critical, and the fraction of infected go to an endemic equilibrium; iv) the epidemic takes off, the number of infected individuals grows initially quicker than the population, the diseases fatalities turn the exponential growth of the population to an exponential decay...
November 16, 2017: Mathematical Biosciences
https://www.readbyqxmd.com/read/29154944/%C3%AE-estradiol-antagonizes-the-inhibitory-effects-of-caffeine-in-bmmscs-via-the-er%C3%AE-mediated-camp-dependent-pka-pathway
#20
Chaowei Wang, Yi Zhou, Xiaoxu Guan, Mengfei Yu, Huiming Wang
Caffeine negatively mediates bone homeostasis to cause bone loss and even osteoporosis. This phenomenon occurs in postmenopausal women with estrogen deficiency but not in healthy young women. In this study, we determined whether the effects of caffeine on bone homeostasis were antagonized by estrogen and the underlying mechanisms. In particular, because high levels of cAMP, an important second messenger, have been observed in postmenopausal women suffering from osteoporosis, we examined the role of cAMP in the effects of caffeine on bone homeostasis...
November 15, 2017: Toxicology
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