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https://www.readbyqxmd.com/read/29163408/environmental-nutrient-supply-directly-alters-plant-traits-but-indirectly-determines-virus-growth-rate
#1
Christelle Lacroix, Eric W Seabloom, Elizabeth T Borer
Ecological stoichiometry and resource competition theory both predict that nutrient rates and ratios can alter infectious disease dynamics. Pathogens such as viruses hijack nutrient rich host metabolites to complete multiple steps of their epidemiological cycle. As the synthesis of these molecules requires nitrogen (N) and phosphorus (P), environmental supply rates, and ratios of N and P to hosts can directly limit disease dynamics. Environmental nutrient supplies also may alter virus epidemiology indirectly by changing host phenotype or the dynamics of coinfecting pathogens...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29077984/neurally-adjusted-ventilatory-assist-compared-to-other-forms-of-triggered-ventilation-for-neonatal-respiratory-support
#2
REVIEW
Thomas E Rossor, Katie A Hunt, Sandeep Shetty, Anne Greenough
BACKGROUND: Effective synchronisation of infant respiratory effort with mechanical ventilation may allow adequate gas exchange to occur at lower peak airway pressures, potentially reducing barotrauma and volutrauma and development of air leaks and bronchopulmonary dysplasia. During neurally adjusted ventilatory assist ventilation (NAVA), respiratory support is initiated upon detection of an electrical signal from the diaphragm muscle, and pressure is provided in proportion to and synchronous with electrical activity of the diaphragm (EADi)...
October 27, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29068556/a-review-of-current-literature-on-vital-sign-assessment-of-physical-activity-in-primary-care
#3
Adrienne Wald, Carol Ewing Garber
PURPOSE: To conduct an integrated review of the performance and implementation of two physical activity (PA) assessment tools, the exercise vital sign (EVS) and the physical activity vital sign (PAVS), in U.S. primary care practice. DESIGN: An integrative review following Whittemore and Knafl's methodology. METHODS: Medline and the Cumulative Index to Nursing and Allied Health Literature (CINAHL) databases were searched. Search terms were "exercise vital sign" OR "physical activity vital sign" AND "primary care"...
October 25, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/29047354/using-risk-tracing-snowball-approach-to-increase-hiv-case-detection-among-high-risk-populations-in-cambodia-an-intervention-study
#4
Srean Chhim, John Macom, Chettana Pav, Nirada Nim, Phearun Yun, Sopheap Seng, Kolab Chhim, Sovannary Tuot, Siyan Yi
BACKGROUND: Early HIV diagnosis and initiation onto antiretroviral therapy may prevent ongoing spread of HIV. Risk Tracing Snowball Approach (RTSA) has been shown to be effective in detecting new HIV cases in other settings. The main objective of this study is to evaluate the effectiveness of RTSA in increasing the rate of newly identified HIV cases among high-risk populations. Our second objective was to evaluate the effectiveness of RTSA, as compared to the walk-in group, in increasing the number of HIV tests and early case detection...
October 18, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29033658/a-new-species-of-saracha-solanaceae-from-the-central-andes-of-peru
#5
Robin Fernandez-Hilario, Stacey D Smith
Saracha andina Rob. Fernandez, I. Revilla & E. Pariente, sp. nov. (Solanaceae), a new species endemic to the central Andes of Peru, is described here. The new species differs from other species of Saracha Ruiz & Pav. by the combination of small and coriaceous leaves and clearly tubular flowers. A summary of the taxonomic history of the genus Saracha, an identification key for its species and a phylogenetic analysis of this genus and related genera are provided.
2017: PhytoKeys
https://www.readbyqxmd.com/read/28994713/the-luteovirus-p4-movement-protein-is-a-suppressor-of-systemic-rna-silencing
#6
Adriana F Fusaro, Deborah A Barton, Kenlee Nakasugi, Craig Jackson, Melanie L Kalischuk, Lawrence M Kawchuk, Maite F S Vaslin, Regis L Correa, Peter M Waterhouse
The plant viral family Luteoviridae is divided into three genera: Luteovirus, Polerovirus and Enamovirus. Without assistance from another virus, members of the family are confined to the cells of the host plant's vascular system. The first open reading frame (ORF) of poleroviruses and enamoviruses encodes P0 proteins which act as silencing suppressor proteins (VSRs) against the plant's viral defense-mediating RNA silencing machinery. Luteoviruses, such as barley yellow dwarf virus-PAV (BYDV-PAV), however, have no P0 to carry out the VSR role, so we investigated whether other proteins or RNAs encoded by BYDV-PAV confer protection against the plant's silencing machinery...
October 10, 2017: Viruses
https://www.readbyqxmd.com/read/28990687/phrenicoabdominal-venotomy-for-tumor-thrombectomy-in-dogs-with-adrenal-neoplasia-and-suspected-vena-caval-invasion
#7
Philipp D Mayhew, William T N Culp, Ingrid M Balsa, Allison L Zwingenberger
OBJECTIVE: To describe a technique for tumor thrombectomy by phrenicoabdominal venotomy in dogs with adrenal neoplasia and suspected caval invasion and to report complications and outcomes associated with the procedure. STUDY DESIGN: Retrospective case series. ANIMALS: Eight client-owned dogs with invasive adrenal tumors. METHODS: Medical records of dogs diagnosed with adrenal tumors with extension of thrombus into the phrenicoabdominal vein (PAV) and vena cava were reviewed...
October 9, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28966320/association-of-dyslipidemia-and-sex-with-coronary-artery-calcium-assessed-by-coronary-computed-tomography-angiography
#8
Masahiko Asami, Kyohei Yamaji, Jiro Aoki, Shuzou Tanimoto, Mika Watanabe, Yu Horiuchi, Koichi Furui, Nahoko Kato, Kazuhiro Hara, Kengo Tanabe
Previous studies reporting that statin increases coronary artery calcium (CAC) were conducted exclusively on patients with statin as a prevention, regardless of the presence or absence of dyslipidemia. The impact of sex on CAC has not been fully evaluated. We aimed to determine the association of dyslipidemia and sex with CAC using 320-row multi-detector computed tomography (MDCT).Of the 356 consecutive patients who underwent coronary MDCT, 251 patients were enrolled, after excluding those with prior stenting and/or coronary bypass grafting or images showing motion artifacts...
October 21, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28932215/identification-characterization-and-full-length-sequence-analysis-of-a-novel-polerovirus-associated-with-wheat-leaf-yellowing-disease
#9
Peipei Zhang, Yan Liu, Wenwen Liu, Mengji Cao, Sebastien Massart, Xifeng Wang
To identify the pathogens responsible for leaf yellowing symptoms on wheat samples collected from Jinan, China, we tested for the presence of three known barley/wheat yellow dwarf viruses (BYDV-GAV, -PAV, WYDV-GPV) (most likely pathogens) using RT-PCR. A sample that tested negative for the three viruses was selected for small RNA sequencing. Twenty-five million sequences were generated, among which 5% were of viral origin. A novel polerovirus was discovered and temporarily named wheat leaf yellowing-associated virus (WLYaV)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28921496/nucleoside-o-methyl-h-phosphinates-novel-monomers-for-the-synthesis-of-methylphosphonate-oligonucleotides-using-h-phosphonate-chemistry
#10
Ondřej Kostov, Ondřej Páv, Ivan Rosenberg
This unit comprises the straightforward synthesis of protected 2'-deoxyribonucleoside-O-methyl-(H)-phosphinates in both 3'- and 5'-series. These compounds represent a new class of monomers compatible with the solid-phase synthesis of oligonucleotides using H-phosphonate chemistry and are suitable for the preparation of both 3'- and 5'-O-methylphosphonate oligonucleotides. The synthesis of 4-toluenesulfonyloxymethyl-(H)-phosphinic acid as a new reagent for the preparation of O-methyl-(H)-phosphinic acid derivatives is described...
September 18, 2017: Current Protocols in Nucleic Acid Chemistry
https://www.readbyqxmd.com/read/28916826/in-vitro-and-in-vivo-biocompatibility-evaluation-of-polyallylamine-and-macromolecular-heparin-conjugates-modified-alginate-microbeads
#11
Vijayaganapathy Vaithilingam, Bjørg Steinkjer, Liv Ryan, Rolf Larsson, Bernard Edward Tuch, Jose Oberholzer, Anne Mari Rokstad
Host reactivity to biocompatible immunoisolation devices is a major challenge for cellular therapies, and a human screening model would be of great value. We designed new types of surface modified barium alginate microspheres, and evaluated their inflammatory properties using human whole blood, and the intraperitoneal response after three weeks in Wistar rats. Microspheres were modified using proprietary polyallylamine (PAV) and coupled with macromolecular heparin conjugates (Corline Heparin Conjugate, CHC)...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28914895/experimental-generation-of-discrete-ultraviolet-wavelength-by-cascaded-intermodal-four-wave-mixing-in-a-multimode-photonic-crystal-fiber
#12
Jinhui Yuan, Zhe Kang, Feng Li, Xianting Zhang, Chao Mei, Guiyao Zhou, Xinzhu Sang, Qiang Wu, Binbin Yan, Xian Zhou, Kangping Zhong, Kuiru Wang, Chongxiu Yu, Gerald Farrell, Chao Lu, Hwa Yaw Tam, P K A Wai
In this Letter, we demonstrate experimentally for the first time, to the best of our knowledge, discrete ultraviolet (UV) wavelength generation by cascaded intermodal FWM when femtosecond pump pulses at 800 nm are launched into the deeply normal dispersion region of the fundamental guided mode of a multimode photonic crystal fiber (MPCF). For pump pulses at average input powers of Pav=450, 550, and 650 mW, the first anti-Stokes waves are generated at the visible wavelength of 538.1 nm through intermodal phase matching between the fundamental and second-order guided mode of the MPCF...
September 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28844560/physical-activity-is-associated-with-the-physical-psychological-social-and-environmental-quality-of-life-in-people-with-mental-health-problems-in-a-low-resource-setting
#13
Davy Vancampfort, Tine Van Damme, Michel Probst, Joseph Firth, Brendon Stubbs, David Basangwa, James Mugisha
There is a growing recognition of the importance of encouraging patients with mental health problems to become more active as an efficacious strategy to reduce the disability-associated burden. The aim of the current study was to investigate if there are differences in quality of life (QoL) outcomes between people with mental health problems that do and do not meet the recommendations of 150min per week of physical activity. 109 (36♀) Ugandan in- and outpatients (mean age = 34.2 ± 10.2 years) (depression = 7, bipolar disorder = 31, schizophrenia = 21, alcohol use disorder = 50) completed the Physical Activity Vital Sign (PAVS) method and World Health Organization Quality of Life Assessment brief version...
December 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28843271/vitamin-d-proliferates-vaginal-epithelium-through-rhoa-expression-in-postmenopausal-atrophic-vagina-tissue
#14
Arum Lee, Man Ryul Lee, Hae-Hyeog Lee, Yeon-Suk Kim, Jun-Mo Kim, Temuulee Enkhbold, Tae-Hee Kim
Postmenopausal atrophic vagina (PAV) is the thinning of the walls of the vagina and decreased lugae of the vagina. PAV is caused by decreased estrogen levels in postmenopausal women. However, the harmful effects of hormone replacement therapy (HRT) have resulted in considerable caution in its use. Various estrogen agonist treatment options are available. Vitamin D is influences the regulation of differentiation and proliferation of various cells, especially tissues lining stratified squamous epithelium, such as the vaginal epithelium...
September 30, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28841267/effects-of-respiratory-muscle-work-on-respiratory-and-locomotor-blood-flow-during-exercise
#15
Paolo B Dominelli, Bruno Archiza, Andrew H Ramsook, Reid A Mitchell, Carli M Peters, Yannick Molgat-Seon, William R Henderson, Michael S Koehle, Robert Boushel, A William Sheel
What is the central question of this study? Does manipulation of the work of breathing during high-intensity exercise alter respiratory and locomotor muscle blood flow? What is the main finding and its importance? We found that when the work of breathing was reduced during exercise, respiratory muscle blood flow decreased, while locomotor muscle blood flow increased. Conversely, when the work of breathing was increased, respiratory muscle blood flow increased, while locomotor muscle blood flow decreased. Our findings support the theory of a competitive relationship between locomotor and respiratory muscles during intense exercise...
August 25, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28840945/the-fabrication-and-the-use-of-immobilized-cells-as-test-organisms-in-a-ferricyanide-based-toxicity-biosensor
#16
Chang Liu, Yingchao Xu, Xiao Han, Xiaojie Chang
Cell immobilization is an effective method to prolong the life time of microorganism and has been proved their feasibility in some other biosensors. Thus, we study on the use of Escherichia coli (E. coli) immobilized by agar, gelatin, agar-gelatin mixture (agar/gelatin), chitosan and polyvinyl alcohol (PVA) to screen toxicity electrochemically. The E. coli immobilized by PAV gel showed the highest apparent bioactivity and the longest storage time in pH 7.0 PBS solution. Furthermore, the E. coli immobilized by different gels was applied in the toxicity determination via a reported ferricyanide-mediated electrochemical method, where 3,5-dichlorophenol (DCP) was used as a model toxin...
August 25, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28818142/psychophysiological-assessment-in-pilots-performing-challenging-simulated-and-real-flight-maneuvers
#17
Bernd Johannes, Stefanie Rothe, André Gens, Soeren Westphal, Katja Birkenfeld, Edwin Mulder, Jörn Rittweger, Carla Ledderhos
BACKGROUND: The objective assessment of psychophysiological arousal during challenging flight maneuvers is of great interest to aerospace medicine, but remains a challenging task. In the study presented here, a vector-methodological approach was used which integrates different psychophysiological variables, yielding an integral arousal index called the Psychophysiological Arousal Value (PAV). METHODS: The arousal levels of 15 male pilots were assessed during predetermined, well-defined flight maneuvers performed under simulated and real flight conditions...
September 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28812310/gliosarcoma-arising-from-oligodendroglioma-idh-mutant-and-1p-19q-codeleted
#18
Takayuki Yasuda, Masayuki Nitta, Takashi Komori, Tatsuya Kobayashi, Kenta Masui, Takashi Maruyama, Tatsuo Sawada, Yoshihiro Muragaki, Takakazu Kawamata
Herein, we present a rare case of gliosarcoma arising from oligodendroglioma, isocitrate dehydrogenase (IDH) mutant and 1p/19q codeleted. A 36-year-old man presented with a non-enhanced calcified abnormal lesion on the right frontal lobe. The patient underwent subtotal surgical resection, PAV chemotherapy (procarbazine, nimustine (ACNU) and vincristine), and fractionated radiotherapy with 50 Gy. The pathological diagnosis was oligodendroglioma, IDH mutant and 1p/19q codeleted, World Health Organization 2016 grade II...
August 15, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28794796/a-high-throughput-phenotyping-procedure-for-evaluation-of-antixenosis-against-common-cutworm-at-early-seedling-stage-in-soybean
#19
Guangnan Xing, Kai Liu, Junyi Gai
BACKGROUND: Common cutworm (CCW; Spodoptera litura Fabricius) is a major leaf-feeding pest of soybean in Asia. The previous methods of measuring antixenosis against CCW using adult plant under field or net-room conditions were time-consuming, labor-intensive and precision-inferior. To solve the problems, this study aimed at (i) establishing a high-throughput phenotyping method for evaluating antixenosis against CCW at early seedling stage, (ii) using the procedure to evaluate the antixenosis of an insect-resistant versus -susceptible germplasm population (IRSGP), (iii) validating the proposed method through comparing the results with the historical phenotypic data and phenotyping-genotyping consistency data using PAV (presence/absence variation) markers linked with the identified loci CCW-1 and CCW-2, (iv) and evaluating the efficiency of the novel method through comparisons to the previous methods...
2017: Plant Methods
https://www.readbyqxmd.com/read/28793856/mining-sequence-variations-in-representative-polyploid-sugarcane-germplasm-accessions
#20
Xiping Yang, Jian Song, Qian You, Dev R Paudel, Jisen Zhang, Jianping Wang
BACKGROUND: Sugarcane (Saccharum spp.) is one of the most important economic crops because of its high sugar production and biofuel potential. Due to the high polyploid level and complex genome of sugarcane, it has been a huge challenge to investigate genomic sequence variations, which are critical for identifying alleles contributing to important agronomic traits. In order to mine the genetic variations in sugarcane, genotyping by sequencing (GBS), was used to genotype 14 representative Saccharum complex accessions...
August 9, 2017: BMC Genomics
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