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https://www.readbyqxmd.com/read/28724085/quantitative-trait-loci-mapping-for-spike-characteristics-in-hexaploid-wheat
#1
Yaopeng Zhou, Benjamin Conway, Daniela Miller, David Marshall, Aaron Cooper, Paul Murphy, Shiaoman Chao, Gina Brown-Guedira, José Costa
Wheat ( L.) spike characteristics determine the number of grains produced on each spike and constitute key components of grain yield. Understanding of the genetic basis of spike characteristics in wheat, however, is limited. In this study, genotyping-by-sequencing (GBS) and the iSelect 9K assay were used on a doubled-haploid (DH) soft red winter wheat population that showed a wide range of phenotypic variation for spike traits. A genetic map spanning 2934.1 cM with an average interval length of 3.4 cM was constructed...
July 2017: Plant Genome
https://www.readbyqxmd.com/read/28724062/increasing-genomic-enabled-prediction-accuracy-by-modeling-genotype-%C3%A3-environment-interactions-in-kansas-wheat
#2
Diego Jarquín, Cristiano Lemes da Silva, R Chris Gaynor, Jesse Poland, Allan Fritz, Reka Howard, Sarah Battenfield, Jose Crossa
Wheat ( L.) breeding programs test experimental lines in multiple locations over multiple years to get an accurate assessment of grain yield and yield stability. Selections in early generations of the breeding pipeline are based on information from only one or few locations and thus materials are advanced with little knowledge of the genotype × environment interaction (G × E) effects. Later, large trials are conducted in several locations to assess the performance of more advanced lines across environments...
July 2017: Plant Genome
https://www.readbyqxmd.com/read/28723969/matrixlysis-an-improved-sample-preparation-method-for-recovery-of-mycobacteria-from-animal-tissue-material
#3
Christoph Leth, Ashok Varadharajan, Patrick Mester, Marlis Fischaleck, Peter Rossmanith, Friedrich Schmoll, Maria Fink
Mycobacterium caprae, a member of the Mycobacterium tuberculosis complex, is the main causative agent of bovine tuberculosis in alpine regions. Bacterial culture is the gold standard in bovine tuberculosis diagnostic but takes up to twelve weeks. This increases the time and costs for stocks affected with bovine tuberculosis. Hence this study focused on the implementation of a fast and precise mycobacterial detection method and compared it with currently used methods. Matrix lysis is a chemical lysis using high concentrations of urea to solubilize bovine and red deer tissue and was used to detect even smallest amounts or non-visible lesions of mycobacteria...
2017: PloS One
https://www.readbyqxmd.com/read/28723945/haematological-and-cd4-t-cells-reference-ranges-in-healthy-adult-populations-in-gojjam-zones-in-amhara-region-ethiopia
#4
Wondemagegn Mulu, Bayeh Abera, Zewdie Mekonnen, Yesuf Adem, Mulat Yimer, Yohannes Zenebe, Asmare Amuamuta, Wondimu Gebeyehu
INTRODUCTION: Establishing national population haematological and immunological reference ranges are essential for clinical management of patients. However, there is scarcity of information on community based haematological reference ranges established from Ethiopian population. Therefore, this study aimed at determining haematological and CD4+ T cells reference ranges in healthy adults from East and West Gojjam zones, Ethiopia. METHODS: Community based cross-sectional study was conducted from May 2015 to December 2015 in healthy adult residents of Gojjam zone...
2017: PloS One
https://www.readbyqxmd.com/read/28723908/sorting-cells-by-their-density
#5
Nazila Norouzi, Heran C Bhakta, William H Grover
Sorting cells by their type is an important capability in biological research and medical diagnostics. However, most cell sorting techniques rely on labels or tags, which may have limited availability and specificity. Sorting different cell types by their different physical properties is an attractive alternative to labels because all cells intrinsically have these physical properties. But some physical properties, like cell size, vary significantly from cell to cell within a cell type; this makes it difficult to identify and sort cells based on their sizes alone...
2017: PloS One
https://www.readbyqxmd.com/read/28723892/global-forest-loss-disproportionately-erodes-biodiversity-in-intact-landscapes
#6
Matthew G Betts, Christopher Wolf, William J Ripple, Ben Phalan, Kimberley A Millers, Adam Duarte, Stuart H M Butchart, Taal Levi
Global biodiversity loss is a critical environmental crisis, yet the lack of spatial data on biodiversity threats has hindered conservation strategies. Theory predicts that abrupt biodiversity declines are most likely to occur when habitat availability is reduced to very low levels in the landscape (10-30%). Alternatively, recent evidence indicates that biodiversity is best conserved by minimizing human intrusion into intact and relatively unfragmented landscapes. Here we use recently available forest loss data to test deforestation effects on International Union for Conservation of Nature Red List categories of extinction risk for 19,432 vertebrate species worldwide...
July 19, 2017: Nature
https://www.readbyqxmd.com/read/28723860/higher-thioguanine-nucleotide-metabolite-levels-are-associated-with-better-long-term-outcomes-in-patients-with-inflammatory-bowel-diseases
#7
Andres J Yarur, Bilal Gondal, Ayal Hirsch, Britt Christensen, Russell D Cohen, David T Rubin
GOALS: The aim of this study was to assess whether sustained 6-thioguaninenucleotide (6-TGN) levels were associated with improved long-term outcomes in patients with inflammatory bowel diseases (IBD). BACKGROUND: Cross-sectional data have shown that thiopurine metabolites are correlated with clinical efficacy in patient receiving thiopurines for IBD but the role for serial measurements through treatment course is unclear. STUDY: We conducted a retrospective cohort study including patients with IBD on thiopurine monotherapy and had serial 6-TGN levels measured...
July 18, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28723745/evaluation-of-the-predictive-value-of-red-blood-cell-distribution-width-for-onset-of-cerebral-infarction-in-the-patients-with-obstructive-sleep-apnea-hypopnea-syndrome
#8
Chang-Xing Shen, Min Tan, Xiao-Lian Song, Shuan-Shuan Xie, Guo-Liang Zhang, Chang-Hui Wang
Red blood cell distribution width (RDW) is a risk factor for the complications caused by obstructive sleep apnea hypopnea syndrome (OSAHS). This study was aimed to evaluate the predictive value of RDW for the occurrence of cerebral infarction in patients with OSAHS.We conducted a prospective study of 129 consecutive patients who were admitted to the Sleep Laboratory of in the Tenth People's Hospital of Shanghai (China) with complaints of snoring, apnea, or daytime sleepiness. All patients underwent polysomnography between June 2011 and May 2012...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28723587/evaluation-of-an-electronic-clinical-decision-support-tool-for-incident-elevated-bp-in-adolescents
#9
Elyse Olshen Kharbanda, Stephen E Asche, Alan Sinaiko, James D Nordin, Heidi L Ekstrom, Patricia Fontaine, Steven P Dehmer, Nancy E Sherwood, Patrick J O'Connor
OBJECTIVE: To evaluate, among adolescents 10-17 years with an incident hypertensive BP (≥95(th) percentile) at a primary care visit, whether TeenBP, a novel electronic health record (EHR) linked clinical decision support tool (CDS), improved recognition of elevated BP and return for follow-up BP evaluation. METHODS: We conducted a pragmatic cluster randomized trial in 20 primary care clinics in a large Midwestern medical group. Ten clinics received the TeenBP CDS, including an alert to remeasure a hypertensive BP at that visit, an alert that a hypertensive BP should be repeated in 1-3 weeks and patient-specific order sets...
July 16, 2017: Academic Pediatrics
https://www.readbyqxmd.com/read/28723316/when-green-and-red-mycology-meet-impressions-from-an-interdisciplinary-forum-on-virulence-mechanisms-of-phyto-and-human-pathogenic-fungi
#10
Yidong Yu, Bernhard Hube, Jörg Kämper, Vera Meyer, Sven Krappmann
Fungal infections pose a constant threat to plants and humans, but detailed knowledge about pathogenesis, immunity, or virulence is rather scarce. Due to the fact that a certain overlap in the armoury of infection exists between plant- and human-pathogenic fungi, an interdisciplinary forum was held in October 2016 at the Institute for Clinical Microbiology, Immunology and Hygiene in Erlangen under the organisational umbrella from two special interest groups of German microbial societies. Scientific exchange and intense discussion of this timely topic was fostered by bringing together renowned experts in their respective fields to present their thoughts and recent findings in the course of a plenary lecture and six themed sessions, accompanied by oral and poster contributions of young researchers...
July 19, 2017: Virulence
https://www.readbyqxmd.com/read/28723201/imaging-lysosomal-ph-alteration-in-stressed-cells-with-a-sensitive-ratiometric-fluorescence-sensor
#11
Zhongwei Xue, Hu Zhao, Jian Liu, Jiahuai Han, Shoufa Han
The organelle-specific pH is crucial for cell homeostasis. Aberrant pH of lysosomes has been manifested in myriad diseases. To probe lysosome responses to cell stress, we herein report the detection of lysosomal pH changes with a dual colored probe (CM-ROX), featuring a coumarin domain with "always-on" blue fluorescence and a rhodamine-lactam domain activatable to lysosomal acidity to give red fluorescence. With sensitive ratiometric signals upon subtle pH changes, CM-ROX enables discernment of lysosomal pH changes in cells undergoing autophagy, cell death, and viral infection...
March 24, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28723193/highly-sensitive-squaraine-based-water-soluble-far-red-near-infrared-chromofluorogenic-thiophenol-probe
#12
Li Xiong, Jun Ma, Yan Huang, Zihe Wang, Zhiyun Lu
A squaraine-based far-red/near-infrared fluorescent probe (SQ-DNBS) was exploited for thiophenol detection. SQ-DNBS is a colorimetric and "off-on" fluorometric dual-channel "naked-eye" chemosensor showing high selectivity, high sensitivity (detection limit: 9.9 nM), and rapid response to thiophenol in aqueous solution. SQ-DNBS also can be used in practical applications for the detection of thiophenol in water samples. Photophysical and spectral characterization results revealed that the probing mechanism of SQ-DNBS toward thiophenol lies in the thiolate-mediated cleavage reaction...
April 28, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28723180/black-phosphorus-quantum-dots-as-the-ratiometric-fluorescence-probe-for-trace-mercury-ion-detection-based-on-inner-filter-effect
#13
Wei Gu, Xueyu Pei, Yuxiao Cheng, Cuiling Zhang, Jidong Zhang, Yinghan Yan, Caiping Ding, Yuezhong Xian
In this work, a novel ratiometric fluorescence sensor has been constructed for the selective and sensitive detection of Hg(2+), which is based on the inner filter effect (IFE) of tetraphenylporphyrin tetrasulfonic acid (TPPS) toward black phosphorus quantum dots (BP QDs). Highly fluorescent BP QDs were successfully synthesized from bulk BP by sonication-assisted solvothermal method via a top-down route. In the presence of Hg(2+), the IFE originating from spectral overlap between the excitation of BP QDs and the absorption of TPPS is inhibited and the fluorescence of BP QDs is restored...
April 28, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28723129/carbon-dioxide-in-a-supported-ionic-liquid-membrane-structural-and-rotational-dynamics-measured-with-2d-ir-and-pump-probe-experiments
#14
Jae Yoon Shin, Steven A Yamada, Michael D Fayer
Supported ionic liquid membranes (SILMs) are porous membranes impregnated with ionic liquids (ILs) and used as advanced carbon capture materials. Here, two-dimensional infrared (2D IR) and IR polarization selective pump-probe (PSPP) spectroscopies were used to investigate CO2 reorientation and spectral diffusion dynamics in SILMs. The SILM contained 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonly)imide in the poly(ether sulfone) membrane with average pore size of ~350 nm. Two ensembles of CO2 were observed in the SILM, one in the IL phase in the membrane pores and the other in the supporting membrane polymer...
July 19, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28722740/spectroscopic-imaging-studies-of-nanoscale-polarity-and-mass-transport-phenomena-in-self-assembled-organic-nanotubes
#15
Hao Xu, Shinobu Nagasaka, Naohiro Kameta, Mitsutoshi Masuda, Takashi Ito, Daniel A Higgins
Synthetic organic nanotubes self-assembled from bolaamphiphile surfactants are now being explored for use as drug delivery vehicles. In this work, several factors important to their implementation in drug delivery are explored. All experiments are performed with the nanotubes immersed in ethanol. First, Nile Red (NR) and a hydroxylated Nile Red derivative (NR-OH) are loaded into the nanotubes and spectroscopic fluorescence imaging methods are used to determine the apparent dielectric constant of their local environment...
July 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28722578/study-of-the-salivary-glands-in-triatominae-hemiptera-reduviidae-triatominae-their-color-and-application-to-the-chagas-disease-vector-evolution
#16
Jader de Oliveira, Amanda Ravazi, Eder Dos Santos Souza, Felipe Ferraz Figueiredo Moreira, Cleber Galvão, João Aristeu da Rosa, Kaio Cesar Chaboli Alevi
Chagas disease is caused by Trypanosoma cruzi and transmitted by feces of a triatomine that has the habit of defecating during blood feeding. The salivary glands of triatomines are important to hematophagy because their saliva is rich in anticoagulant and hemolytic proteins. The salivary glands of some Rhodnius species analyzed are reddish due to the presence of nitrophorins (antihemostatic activity). The present study aimed to analyze the color pattern of the salivary glands of 67 triatomine species to evaluate whether the presence of nitrophorins is a synapomorphy of Rhodnius or the tribe Rhodniini, or if it is shared with triatomines of the tribes Triatomini and Cavernicolini...
July 10, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722538/dispersed-synthesis-of-uniform-fe3o4-magnetic-nanoparticles-via-in-situ-decomposition-of-iron-precursor-along-cotton-fiber-for-sudan-dyes-analysis-in-food-samples
#17
Yassine Bentahir, Said Elmarhoum, Rachid Salghi, Manuel Algarra, Angel Ríos, Mohammed Zougagh
Fe3O4 magnetic nanoparticles, with a negative charge surface, are known to have efficient adsorbent properties, but they tend to be agglomerated into larger aggregates or flocs, which can cause loss of specific area. The addition of cotton fiber, as a stabilizer in preparation of the Fe3O4 nanoparticles, is able to efficiently reduce particle aggregation, and thus, effective particle size, resulting in much greater specific surface area and adsorption sites. Fe3O4 nanoparticles synthesis was accomplished by in-situ high temperature decomposition of the precursor ferric ion in the presence of cotton fiber and ethylene glycol solvent...
July 19, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28722432/benzocoumarin-hydrazine-a-large-stokes-shift-fluorogenic-sensor-for-detecting-carbonyls-in-isolated-biomolecules-and-in-live-cells
#18
Kamalika Mukherjee, Tak Ian Chio, Han Gu, Abhijit Banerjee, Anthony M Sorrentino, Dan L Sackett, Susan L Bane
Detection and quantification of biomolecule carbonylation, a critical manifestation of oxidative stress, allows better understanding of associated disease states. Existing approaches for such analyses require further processing of cells and tissues, which leads to loss of both spatial and temporal information about carbonylated biomolecules in cells. Live cell detection of these species requires sensors that are nontoxic, sufficiently reactive with the biocarbonyl in the intracellular milieu, and detectable with commonly available instrumentation...
January 27, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28722404/high-performance-colorimetric-detection-of-thiosulfate-by-using-silver-nanoparticles-for-smartphone-based-analysis
#19
Chen Dong, Zhuqing Wang, Yujie Zhang, Xuehua Ma, M Zubair Iqbal, Lijing Miao, Zhuangwei Zhou, Zheyu Shen, Aiguo Wu
Developing thiosulfate (S2O32-) sensors with silver nanoparticles (AgNPs) for analysis of aqueous solutions with the interference of other anions remains challenging. In this study, we propose a new strategy for excellent selective colorimetric detection of S2O32-. The non-morphological transition of AgNPs leading to a color change from yellow to brown is verified by UV-vis, TEM, DLS, SEM, and XPS analyses. The sensor exhibits high sensitivity with detection limits of 1.0 µM by naked-eye determination and 0...
July 19, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28722398/fractionation-and-concentration-of-high-salinity-textile-wastewater-using-an-ultra-permeable-sulfonated-thin-film-composite
#20
Meng Li, Yujian Yao, Wen Zhang, Junfeng Zheng, Xuan Zhang, Lianjun Wang
A sulfonated thin-film composite (TFC) nanofiltration membrane was fabricated using 2,2'-benzidinedisulfonic acid (BDSA) and trimesoyl chloride (TMC) on a polyether sulfone substrate by conventional interfacial polymerization. Due to a nascent barrier layer with a loose architecture, the obtained TFC-BDSA-0.2 membrane showed an ultra-high pure water permeability of 48.1 ± 2.1 L-1 m-2 h-1 bar-1, and a considerably low NaCl retention ability of <1.8% over a concentration range of 10-100 g L-1. The membrane, which possesses a negatively charged surface, displayed an excellent rejection of over 99% towards Congo red (CR), and allowed the fast fractionation of high-salinity textile wastewater...
July 19, 2017: Environmental Science & Technology
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