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https://www.readbyqxmd.com/read/28921970/tris-heteroleptic-iridium-complexes-based-on-cyclometalated-ligands-with-different-cores
#1
Yanouk Cudré, Felipe Franco de Carvalho, Gregory R Burgess, Louise Male, Simon J A Pope, Ivano Tavernelli, Etienne Baranoff
A series of tris-heteroleptic iridium complexes of the form [Ir(C^N(1))(C^N(2))(acac)] combining 2-phenylpyridine (ppy), 2-(2,4-difluorophenyl)pyridine (dFppy), 1-phenylpyrazole (ppz), and 1-(2,4-difluorophenyl)pyrazole (dFppz) as the C^N ligands have been synthesized and fully characterized by NMR, X-ray crystallography, UV-vis absorption and emission spectroscopy, and electrochemical methods. It is shown that "static properties" (e.g., absorption and emission spectra and redox potentials) are primarily dictated by the overall architecture of the complex, while "dynamic properties" (e...
September 18, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28919588/poly-i-c-delivery-into-j774-1-and-raw264-7-macrophages-induces-rapid-cell-death
#2
Cheah Wen Yapp, Amal Widaad Mohaimin, Adi Idris
BACKGROUND: Cytosolic double-stranded RNA (dsRNA) is an important 'molecular signature' for the detection of intracellular viral infections. Although intracellular dsRNA is a known potent inducer of apoptosis, the optimal time and dose for the onset of dsRNA-mediated apoptosis have not been studied in detail. OBJECTIVE: To perform an accurate temporal assessment of the cell death responses in dsRNA-dependent cytotoxicity. METHODS: Poly I:C (PIC), a synthetic dsRNA molecule was delivered intracellularly into J774...
September 2017: Iranian Journal of Immunology: IJI
https://www.readbyqxmd.com/read/28917942/in-vivo-and-in-vitro-testing-of-native-%C3%AE-conotoxins-from-the-injected-venom-of-conus-purpurascens
#3
REVIEW
Mickelene F Hoggard, Alena M Rodriguez, Herminsul Cano, Evan Clark, Han-Shen Tae, David J Adams, Tanja A Godenschwege, Frank Marí
α-Conotoxins inhibit nicotinic acetylcholine receptors (nAChRs) and are used as probes to study cholinergic pathways in vertebrates. Model organisms, such as Drosophila melanogaster, express nAChRs in their CNS that are suitable to investigate the neuropharmacology of α-conotoxins in vivo. Here we report the paired nanoinjection of native α-conotoxin PIA and two novel α-conotoxins, PIC and PIC[O7], from the injected venom of Conus purpurascens and electrophysiological recordings of their effects on the giant fiber system (GFS) of D...
September 13, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28916874/development-of-cacta-transposon-derived-scar-markers-and-their-use-in-population-structure-analysis-in-zea-mays
#4
Neha Samir Roy, Kyong-Cheul Park, Sung-Il Lee, Min-Ji Im, Rahul Vasudeo Ramekar, Nam-Soo Kim
Molecular marker technologies have proven to be an important breakthrough for genetic studies, construction of linkage maps and population genetics analysis. Transposable elements (TEs) constitute major fractions of repetitive sequences in plants and offer a wide range of possible areas to be explored as molecular markers. Sequence characterized amplified region (SCAR) marker development provides us with a simple and time saving alternative approach for marker development. We employed the CACTA-TD to develop SCARs and then integrated them into linkage map and used them for population structure and genetic diversity analysis of corn inbred population...
September 15, 2017: Genetica
https://www.readbyqxmd.com/read/28895757/intoxications-in-the-strida-project-involving-a-panorama-of-psychostimulant-pyrovalerone-derivatives-mdpv-copycats
#5
Olof Beck, Matilda Bäckberg, Patrick Signell, Anders Helander
CONTEXT: An increasing number of new psychoactive substances (NPS) of different chemical classes have become available through marketing and sale over the Internet. This report from the Swedish STRIDA project presents the prevalence, laboratory results, and clinical features in intoxications involving 11 stimulant pyrovalerone NPS derivatives over a 5-year period. STUDY DESIGN: Case series of consecutive patients with admitted or suspected intake of NPS presenting to Swedish hospitals for emergency treatment from January 2011 to March 2016...
September 12, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28893950/the-taf10-containing-tfiid-and-saga-transcriptional-complexes-are-dispensable-for-early-somitogenesis-in-the-mouse-embryo
#6
Paul Bardot, Stéphane D Vincent, Marjorie Fournier, Alexis Hubaud, Mathilde Joint, László Tora, Olivier Pourquié
During development, tightly regulated gene expression programs control cell fate and patterning. A key regulatory step in eukaryotic transcription is the assembly of the pre-initiation complex (PIC) at promoters. The PIC assembly has mainly been studied in vitro, and little is known about its composition during development. In vitro data suggests that TFIID is the general transcription factor that nucleates PIC formation at promoters. Here we show that TAF10, a subunit of TFIID and of the transcriptional co-activator SAGA, is required for the assembly of these complexes in the mouse embryo...
September 11, 2017: Development
https://www.readbyqxmd.com/read/28891984/in-vitro-sonodynamic-therapeutic-effect-of-polyion-complex-micelles-incorporating-titanium-dioxide-nanoparticles
#7
Satoshi Yamamoto, Masafumi Ono, Eiji Yuba, Atsushi Harada
Titanium dioxide nanoparticles (TiO₂ NPs) can act as sonosensitizers, generating reactive oxygen species under ultrasound irradiation, for use in sonodynamic therapy. For TiO₂ NPs delivery, we prepared polyion complex micelles incorporating TiO₂ NPs (TiO₂ NPs-PIC micelles) by mixing TiO₂ NPs with polyallylamine bearing poly(ethylene glycol) grafts. In this study, the effects of polymer composition and ultrasound irradiation conditions on the sonodynamic therapeutic effect toward HeLa cells were evaluated experimentally using cell viability evaluation, intracellular distribution observation, and a cell staining assay...
September 11, 2017: Nanomaterials
https://www.readbyqxmd.com/read/28886690/transcriptome-profiling-of-antiviral-immune-and-dietary-fatty-acid-dependent-responses-of-atlantic-salmon-macrophage-like-cells
#8
Khalil Eslamloo, Xi Xue, Jennifer R Hall, Nicole C Smith, Albert Caballero-Solares, Christopher C Parrish, Richard G Taylor, Matthew L Rise
BACKGROUND: Due to the limited availability and high cost of fish oil in the face of increasing aquaculture production, there is a need to reduce usage of fish oil in aquafeeds without compromising farm fish health. Therefore, the present study was conducted to determine if different levels of vegetable and fish oils can alter antiviral responses of salmon macrophage-like cells (MLCs). Atlantic salmon (Salmo salar) were fed diets containing 7.4% (FO7) or 5.1% (FO5) fish oil. These diets were designed to be relatively low in EPA + DHA (i...
September 8, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28886133/phylogeographic-pattern-suggests-a-general-northeastward-dispersal-in-the-distribution-of-machilus-pauhoi-in-south-china
#9
Qin Zhu, Bo-Yong Liao, Pei Li, Jun-Cheng Li, Xiao-Mei Deng, Xin-Sheng Hu, Xiao-Yang Chen
Machilus pauhoi Kanehira is an important timber species in China. A provenance trial was recently set up to evaluate the growth performance of trees from different localities, with the aim of designing seed transfer guidelines. Here, we tested twelve nuclear microsatellite markers derived from other species of the Lauraceae family and investigated population genetic structure in M. pauhoi. Both the number of observed alleles per locus (Na) and the polymorphic information content (PIC) significantly decreased against the latitude, but showed an insignificant decrease against the longitude...
2017: PloS One
https://www.readbyqxmd.com/read/28878504/analysis-of-spatial-distribution-of-genetic-diversity-and-validation-of-indian-foxtail-millet-core-collection
#10
Subhash Chander, K V Bhat, Ratna Kumari, Sanjay Sen, A B Gaikwad, M V C Gowda, N Dikshit
Foxtail millet [Setaria italica (L.) P. Beauv.] is an important small millet, grown as a short duration, drought tolerant crop across the world. This crop can be grown on wide ranges of soil conditions and has an immense potential for food and fodder in rainfed and arid regions of the India. In the present study, 31 primer pairs (27 SSR and 4 EST-SSR) were used to analyse the genetic diversity in 223 core collection accessions. Analysis resulted in detection of a total of 136 alleles with an average of 4.38 alleles per locus...
July 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/28878503/assessment-of-genetic-diversity-and-population-structure-of-an-endemic-moroccan-tree-argania-spinosa-l-based-in-irap-and-issr-markers-and-implications-for-conservation
#11
Ouafae Pakhrou, Leila Medraoui, Chaimaa Yatrib, Mohammed Alami, Abdelkarim Filali-Maltouf, Bouchra Belkadi
Argan Tree is well known for its precious oil extracted from its seeds particularly used for the nutritional and cosmetic benefits. Because of the high international demand, the argan tree suffers from overexploitation and its cultivation is rare. Thus, the assessment of the genetic variation of this endemic tree is critically important for designing conservation strategies. In the present study and for the first time, genetic diversity of the global natural distribution of argan tree (Argania spinosa L.) in Morocco was assessed...
July 2017: Physiology and Molecular Biology of Plants: An International Journal of Functional Plant Biology
https://www.readbyqxmd.com/read/28873211/analysis-of-genetic-variability-of-commercial-melon-cultivars-using-ssr-molecular-markers
#12
N Carvalho, F M Canela, P H S Leite, M A Ferreira, V R Oliveira, M F Santos, N O S Souza, G S C Buso
Taking into account the scenario of melon production (Cucumis melo L.) in Brazil, it is notable the importance of the culture in the fruit market. The preference of the national market is concentrated in the fruits of the yellow type. Therefore, it is possible that the genetic base of the commercial cultivars is relatively narrow due to the loss of important genes in the breeding process, and it is possible to introgress external genes for increasing recombination possibilities that generate sources of resistance to the main diseases and superior genotypes...
August 31, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28872777/orexin-a-increases-sympathetic-nerve-activity-through-promoting-expression-of-proinflammatory-cytokines-in-sprague-dawley-rats
#13
Yuanyuan Fan, Enshe Jiang, Taija Hahka, Qinghui Chen, Jianqun Yan, Zhiying Shan
AIM: Accumulating evidence suggests that orexin signaling is involved in the regulation of blood pressure and cardiovascular function. However, the underlying mechanisms are not clear. Here we test the hypothesis that upregulated orexin A signaling in the paraventricular nucleus (PVN) increases sympathetic nerve activity (SNA) through stimulating expression of proinflammatory cytokines (PICs). METHODS: In vivo sympathetic nerve recordings were performed to test the impact of PVN orexin signaling on sympathetic outflow in Sprague-Dawley (SD) rats...
September 5, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28869329/a-multiple-stimulus-responsive-biomimetic-assembly-based-on-polyisocyanopeptide-and-conjugated-polymer
#14
Fanfan Meng, Chengfen Xing, Hongbo Yuan, Yibing Fan, Ran Chai, Yong Zhan
An assembly has been fabricated and indicated as a multiple-stimulus responsive biomimetic hybrid polymer architecture. It was constructed by the hydrophobic interactions between the conjugated polyfluorene containing 2,1,3-benzothia-diazole units (PFBT) and the tri(ethylene glycol)-functionalized polyisocyanopeptide (3OEG-PIC). The introduction of PFBT to the polyisocyanopeptide (PIC) network allows for the incorporation of multiple-stimulus responsiveness including temperature, CO2, carbonic anhydrase and nonlinear mechanics, which mimics the natural processes and interactions...
September 4, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28868216/molecular-and-phytochemical-analysis-of-wild-type-and-olive-cultivars-grown-under-saudi-arabian-environment
#15
Abdullah A Abood, Abdullah M Al-Ansari, Hussein M Migdadi, Mohammad K Okla, Abdulaziz M Assaeed, Ahmad K Hegazy, Aref M Alshameri, Mohamad Altaf Khan
This study aimed to assess genetic variability at molecular and phytochemical levels among the four most commonly grown olive cultivars and the wild-type olive of Saudi Arabia. Sixty-six and 80 amplicons were generated from 9 random amplified polymorphic DNA (RAPD) and inter simple sequence repeats (ISSR) primers, each, producing an average of 95.9 and 86.44% polymorphism for the two markers, respectively. The PIC values were 82.2% for the RAPD and 85.4% for the ISSR markers and the discrimination power for both the markers was 11...
October 2017: 3 Biotech
https://www.readbyqxmd.com/read/28868215/rapd-and-issr-marker-assessment-of-genetic-diversity-in-citrullus-colocynthis-l-schrad-a-unique-source-of-germplasm-highly-adapted-to-drought-and-high-temperature-stress
#16
Kumar Sambhav Verma, Shamshad Ul Haq, Sumita Kachhwaha, S L Kothari
Citrullus colocynthis (L.) Schrad. (Cucurbitaceae) shows high levels of variation in fruit color, fruit stripe pattern, seed coat color, and size. Thirty-eight accessions of C. colocynthis plants from different parts of semi-arid Rajasthan were collected and genetic diversity was assessed using random-amplified polymorphic DNA (RAPD) and inter-simple sequence repeat (ISSR) markers. Out of 65 RAPD decamer primers, 50 primers produced 549 scorable bands of which 318 were polymorphic. Polymorphic banding patterns with the number of amplified fragments varied from 5 (OPA-08 and OPF-9) to 19 (OPT-20) in the molecular size range of 150-6000 bp...
October 2017: 3 Biotech
https://www.readbyqxmd.com/read/28867650/a-postoperative-anti-adhesion-barrier-based-on-photoinduced-imine-crosslinking-hydrogel-with-tissue-adhesive-ability
#17
Yunlong Yang, Xiaolin Liu, Yan Li, Yang Wang, Chunyan Bao, Yunfeng Chen, Qiuning Lin, Linyong Zhu
Postoperative adhesion is a serious complication that can further lead to morbidity and/or mortality. Polymer anti-adhesion barrier material provides an effective precaution to reduce the probability of postoperative adhesion. Clinical application requires these materials to be easily handled, biocompatible, biodegradable, and most importantly tissue adherent to provide target sites with reliable isolation. However, currently there is nearly no polymer barrier material that can fully satisfy these requirements...
September 1, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28867623/colonization-resistance-to-bile-and-virulence-properties-of-escherichia-coli-strains-unusual-characteristics-associated-with-biliary-tract-diseases
#18
Maryam Razaghi, Elahe Tajeddin, Leila Ganji, Masoud Alebouyeh, Amir Houshang Mohammad Alizadeh, Amir Sadeghi, Mohammad Reza Zali
Escherichia coli is the species that is most frequently isolated from bile of patients with biliary tract diseases. This study was aimed to investigate any association between resistance and virulence properties of these isolates with occurrence of the diseases. A total of 102 bile samples were obtained from patients subjected to endoscopic retrograde cholangiopancreatography for different biliary diseases. Clinical data were collected and culture of the bile samples was done on selective media. Resistance of characterized Escherichia coli isolates to deoxycholate sodium (0-7%) and nineteen antibiotics was determined and PCR using 16 pairs of primers targeting stx1, stx2, exhA, eae, bfp, agg, pcvd432, lt, st, ipaH, pic, pet, ast, set, sen, and cdtB genes was done...
September 1, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28866281/integrated-assessment-of-toxic-effects-of-maghemite-%C3%AE-fe2o3-nanoparticles-in-zebrafish
#19
Rolando A R Villacis, José S Filho, Benjamin Piña, Ricardo B Azevedo, Aline Pic-Taylor, Juliana F Mazzeu, Cesar K Grisolia
The increasing use of nanotechnology in the last decade has raised concerns about the impact of nanoparticles in the environment. In particular, the potential harmful effects of iron oxide nanoparticles (IONPs) in aquatic organisms have been poorly addressed. We analyze here the toxic effects induced by IONPs in zebrafish using a combination of classical (genotoxicity, oxidative stress) and molecular (transcriptomic) methodologies. Adult animals were exposed for 96h to five sub-lethal IONP concentrations, ranging from 4...
August 8, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28866273/exploring-gene-expression-changes-in-the-amphioxus-gill-after-poly-i-c-challenge-using-digital-expression-profiling
#20
Qi-Lin Zhang, Han-Yue Qiu, Ming-Zhong Liang, Bang Luo, Xiu-Qiang Wang, Jun-Yuan Chen
Amphioxus, a cephalochordate, is a key model animal for studying the evolution of vertebrate immunity. Recently, studies have revealed that microRNA (miRNA) expression profiles change significantly in the amphioxus gill after immune stimulation, but it remains largely unknown how gene expression responds to immune stress. Elucidating gene expression changes in the amphioxus gill will provide a deeper understanding of the evolution of gill immunity in vertebrates. Here, we used high-throughput RNA sequencing technology (RNA-seq) to conduct tag-based digital gene expression profiling (DGE) analyses of the gills of control Branchiostoma belcheri and of those exposed to the viral mimic, poly(I:C) (pIC)...
September 1, 2017: Fish & Shellfish Immunology
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