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https://www.readbyqxmd.com/read/28549182/single-provenance-mature-conifers-show-higher-non-structural-carbohydrate-storage-and-reduced-growth-in-a-drier-location
#1
Frida I Piper, Alex Fajardo, Günter Hoch
Since growth is more sensitive to drought than photosynthesis, trees inhabiting dry regions are expected to exhibit higher carbohydrate storage and less growth than their conspecifics from more humid regions. However, the same pattern can be the result of different genotypes inhabiting contrasting humidity conditions. To test if reduced growth and high carbohydrate storage are environmentally driven by drought, we examined the growth and non-structural carbohydrate (NSC) concentrations in single-provenance stands of mature trees of Pinus contorta Douglas and Pinus ponderosa Douglas ex C...
May 26, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28549168/assessing-the-thermal-dissipation-sap-flux-density-method-for-monitoring-cold-season-water-transport-in-seasonally-snow-covered-forests
#2
Allison M Chan, David R Bowling
Productivity of conifers in seasonally snow-covered forests is high before and during snowmelt when environmental conditions are optimal for photosynthesis. Climate change is altering the timing of spring in many locations, and changes in the date of transition from winter dormancy can have large impacts on annual productivity. Sap flow methods provide a promising approach to monitor tree activity during the cold season and the winter-spring and fall-winter transitions. Although sap flow techniques have been widely used, cold season results are generally not reported...
May 26, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28549059/elimination-diet-and-the-development-of-multiple-tree-nut-allergies
#3
Arnon Elizur, Jennifer B Bollyky, Whitney M Block
BACKGROUNDDespite its high prevalence, relatively little is known about the characteristics of patients with multiple tree-nuts allergies.METHODSPatients (n=60, aged 4-15 years), recruited for a multiple food (tree-nuts, peanut, milk, egg, soy, sesame and wheat) oral immunotherapy (OIT) study, filled a questionnaire on their initial allergy evaluation. Medical records were reviewed. At OIT enrollment (median interval, 7.5 years), patients underwent oral food challenges (OFC) to foods still eliminated.RESULTSThere was significantly less evidence for eliminating tree-nuts compared to other foods, as reflected by lower rate of acute reaction to the offending food, either as the trigger for initial allergy evaluation (5...
May 26, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28549022/pictorial-review-of-surgical-anatomy-in-adult-congenital-heart-disease
#4
Carlo N De Cecco, Giuseppe Muscogiuri, José M Madrid Pérez, Marwen Eid, Pal Suranyi, Virginia W Lesslie, Gorka Bastarrika
The survival rate of patients with congenital heart disease (CHD) has dramatically improved over the last 2 decades because of technological and surgical advances in diagnosis and treatment, respectively. The vast majority of CHD patients are, in fact, amenable to treatment by either device closure or surgery. Considering the wide spectrum of surgical procedures and complex native and derived anatomy, continuous and detailed follow-up is of paramount importance. Cardiac magnetic resonance and cardiac computed tomography angiography are the cornerstones of diagnosis and follow-up of CHD, allowing for comprehensive noninvasive assessment of the heart, coronary tree, and intrathoracic great vessels, along with both morphological and functional evaluation...
May 25, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28548693/hemodynamic-impact-of-the-c-pulse-cardiac-support-device-a-one-dimensional-arterial-model-study
#5
Daimé Campos Arias, Francisco Londono, Tania Rodríguez Moliner, Dimitrios Georgakopoulos, Nikos Stergiopulos, Patrick Segers
The C-Pulse is a novel extra-aortic counter-pulsation device to unload the heart in patients with heart failure. Its impact on overall hemodynamics, however, is not fully understood. In this study, the function of the C-Pulse heart assist system is implemented in a one-dimensional (1-D) model of the arterial tree, and central and peripheral pressure and flow waveforms with the C-Pulse turned on and off were simulated. The results were studied using wave intensity analysis and compared with in vivo data measured non-invasively in three patients with heart failure and with invasive data measured in a large animal (pig)...
May 26, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28547384/a-new-putative-deltapartitivirus-recovered-from-dianthus%C3%A2-amurensis
#6
Hongliu An, Guanlin Tan, Guihong Xiong, Meirong Li, Shouguo Fang, Saif Ul Islam, Songbai Zhang, Fan Li
Two double stranded RNAs (dsRNA), likely representing the genome of a novel deltapartitivirus, provisionally named carnation cryptic virus 3 (CCV3), were recovered from Dianthus amurensis. The two dsRNAs were 1,573 (dsRNA1) and 1,561 (dsRNA2) bp in size, each containing a single open reading frame (ORF) encoding a 475- and 411-aa protein, respectively. The 475-aa protein contains a conserved RNA dependent RNA polymerase (RdRp) domain which shows significant homology to RdRps of established or putative partitiviruses, particularly those belonging to the genus Deltapartitivirus...
May 25, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28547382/comparative-analysis-of-cherry-virus-a-genome-sequences-assembled-from-deep-sequencing-data
#7
Prasad Kesanakurti, Mark Belton, Hanaa Saeed, Heidi Rast, Ian Boyes, Michael Rott
Cherry virus A (CVA) is a ubiquitous graft-transmissible virus that mainly infects Prunus spp. Next-generation sequencing was applied to 39 tree fruit specimens infected with CVA, and 75 full and 16 partial-length CVA genome sequences were assembled. Phylogenetic analysis of these and 11 previously sequenced CVA genomes resulted in six major clusters with no observable relationship between the host and the assembled genome sequences. Recombination analysis detected four recombinants. Consistent single-nucleotide polymorphism (SNP) patterns were observed between the 75 full-length genomes and their sequence clouds, which supports a quasispecies model for CVA evolution...
May 25, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28547294/seasonal-dynamics-of-extraradical-mycelium-and-mycorrhizas-in-a-black-truffle-tuber-melanosporum-plantation
#8
Mikel Queralt, Javier Parladé, Joan Pera, Ana María DE Miguel
Seasonal dynamics of black truffle (Tuber melanosporum) extraradical mycelium as well as the associated mycorrhizal community have been evaluated in a 16-year-old plantation with productive and non-productive trees. Mycelium biomass was seasonally quantified by real-time PCR over two consecutive years and the correlation with environmental variables explored. Extraradical mycelium biomass varied seasonally and between the two consecutive years, being correlated with the precipitation that occurred 1 month before sampling...
May 25, 2017: Mycorrhiza
https://www.readbyqxmd.com/read/28546745/bronchiectasis-and-increased-risk-of-ischemic-stroke-a-nationwide-population-based-cohort-study
#9
Yung-Fu Chen, Hsuan-Hung Lin, Chih-Sheng Lin, Battsetseg Turbat, Kuo-An Wang, Wei-Sheng Chung
BACKGROUND: Bronchiectasis is characterized by permanent dilatation of the bronchial tree caused by recurrent airway infection and inflammation. The association of atherosclerosis and inflammation is well established. However, studies on the relationship between bronchiectasis and stroke are scant. OBJECTIVE: We conducted a population-based cohort study to investigate the incidence and risk of ischemic stroke in patients with bronchiectasis. METHODS: Data of 1,295 patients newly diagnosed as bronchiectasis between 2000 and 2008 were retrieved from the Taiwan National Health Insurance Research Database...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28546652/chimpanzees-pan-troglodytes-flexibly-use-introduced-species-for-nesting-and-bark-feeding-in-a-human-dominated-habitat
#10
Maureen S McCarthy, Jack D Lester, Craig B Stanford
As habitat loss and fragmentation place growing pressure on endangered nonhuman primate populations, researchers find increasing evidence for novel responses in behavior. In western Uganda between the Budongo and Bugoma Forests, chimpanzees (Pan troglodytes schweinfurthii) inhabit a mosaic landscape comprising forest fragments, human settlements, and agricultural land. We recorded nests and feeding evidence of unhabituated chimpanzees in this region over a 12-mo period. We found extensive evidence of nesting in introduced tree species, including eucalyptus (Eucalyptus grandis), guava (Psidium guajava), cocoa (Theobroma cacao), and Caribbean pine (Pinus caribaea)...
2017: International Journal of Primatology
https://www.readbyqxmd.com/read/28546560/potential-decline-in-carbon-carrying-capacity-under-projected-climate-wildfire-interactions-in-the-sierra-nevada
#11
Shuang Liang, Matthew D Hurteau, Anthony LeRoy Westerling
Ecosystem carbon carrying capacity (CCC) is determined by prevailing climate and natural disturbance regimes, conditions that are projected to change significantly. The interaction of changing climate and its effects on disturbance regimes is expected to affect forest regeneration and growth, which may diminish forest carbon (C) stocks and uptake. We modeled landscape C dynamics over 590 years along the latitudinal gradient of the U.S. Sierra Nevada Mountains under climate and area burned by large wildfires projected by late 21(st) century...
May 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28546477/the-complete-genome-sequence-of-a-human-parechovirus-from-a-child-with-diarrhea-in-china-revealed-intertypic-recombination
#12
Xiaoying Zhao, Chenglin Zhou, Xiaodan Zhang, Wang Li, Xinyu Wan, Yan Wang, Yuming Zeng, Wen Zhang
A human parechovirus (HPeV), CH-ZXY1, was detected in feces from a child with diarrhea. Phylogenetic trees over three different genomic regions revealed discordant topological structures. Recombination analysis indicates that CH-ZXY1 is a recombinant resulting from recombination between HPeV5 and HPeV1, which was confirmed by PCR covering the recombination breakpoint.
May 25, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28546128/predictive-factors-of-intraoperative-cell-salvage-during-pediatric-scoliosis-surgery-cell-saver-during-scoliosis-surgery-in-children
#13
Daphné Michelet, Florence Julien-Marsollier, Julie Hilly, Thierno Diallo, Christophe Vidal, Souhayl Dahmani
INTRODUCTION: blood saving strategy during spinal surgery in children often includes recombinant erythropoietin (rEPO) and antifibrinolytic therapapy (AFT). The aim of this study was to investigate the efficacy of intraoperative blood salvage in decreasing homologous blood transfusion. MATERIAL AND METHODS: using the prospective data from patients operated during a one year period for scoliosis correction, we calculate the predictable hematocrit at day postoperative 1 without the use of blood salvage and compare it to the target hematocrit transfusion according to patient's status...
May 22, 2017: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/28546125/molecular-cloning-and-functional-characterization-of-coft1-a-homolog-of-flowering-locus-t-ft-from-camellia-oleifera
#14
Hengjiu Lei, Shuchai Su, Luyi Ma, Yue Wen, Xiangnan Wang
FLOWERING LOCUS T (FT) is an important integrator of flowering genetic pathways and plays crucial roles in flowering transition. The tea-oil tree (Camellia oleifera Abel.) is a valuable woody oil crop, but the molecular mechanisms controlling flowering are still unclear. In this study, a FT-like gene, CoFT1, was isolated and characterized from C. oleifera. The CoFT1 protein was localized in the nucleus and cytoplasm of Arabidopsis protoplasts, and exhibited no transactivation activity in yeast cells. CoFT1 was highly expressed in mature leaves and reproductive organs, such as flower buds, flowers, flower organs, and young fruits...
May 22, 2017: Gene
https://www.readbyqxmd.com/read/28546114/melaleuca-alternifolia-essential-oil-prevents-alterations-to-purinergic-enzymes-and-ameliorates-the-innate-immune-response-in-silver-catfish-infected-with-aeromonas-hydrophila
#15
Matheus D Baldissera, Carine F Souza, Pedro H Doleski, Agueda C de Vargas, Marta M M F Duarte, Thiago Duarte, Aline A Boligon, Daniela B R Leal, Bernardo Baldisserotto
Aeromonas hydrophila infection represents a major impediment to the development of aquaculture, leading to important economic losses. Over the last few years, different methods have been used to counteract and minimize the negative effects of this infection, such as the use of Melaleuca alternifolia essential oil, popularly known as tea tree oil (TTO), that possess a bactericide action against A. hydrophila. The purinergic system develops an important role in the inflammatory response, principally due to involvement of adenosine triphosphate (ATP) in the inflammatory process, as well as by the anti-inflammatory properties of adenosine (Ado), a molecule that is controlled by NTPDase, 5'-nucleotidase and adenosine deaminase (ADA) enzymes...
May 22, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28545973/evolutionary-and-ecological-forces-influencing-population-diversification-in-bornean-montane-passerines
#16
Vivien L Chua, Brian Tilston Smith, Ryan C Burner, Mustafa Abdul Rahman, Maklarin Lakim, Dewi M Prawiradilaga, Robert G Moyle, Frederick H Sheldon
The mountains of Borneo are well known for their high endemicity and historical role in preserving Southeast Asian rainforest biodiversity, but the diversification of populations inhabiting these mountains is poorly studied. Here we examine the genetic structure of 12 Bornean montane passerines by comparing complete mtDNA ND2 gene sequences of populations spanning the island. Maximum likelihood and Bayesian phylogenetic trees and haplotype networks are examined for common patterns that might signal important historical events or boundaries to dispersal...
May 22, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28545836/symptom-severity-classification-with-gradient-tree-boosting
#17
Yang Liu, Yu Gu, John Chu Nguyen, Haodan Li, Jiawei Zhang, Yuan Gao, Yang Huang
In this paper, we present our system as submitted in the CEGS N-GRID 2016 task 2 RDoC classification competition. The task was to determine symptom severity (0-3) in a domain for a patient based on the text provided in his/her initial psychiatric evaluation. We first preprocessed the psychiatry notes into a semi-structured questionnaire and transformed the short answers into either numerical, binary, or categorical features. We further trained weak Support Vector Regressors (SVR) for each verbose answer and combined regressors' output with other features to feed into the final gradient tree boosting classifier with resampling of individual notes...
May 22, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28545213/safe-utilization-of-heavy-metal-contaminated-farmland-by-mulberry-tree-cultivation-and-silk-production
#18
Xiaoming Wan, Mei Lei, Tongbin Chen, Yongbi Tan, Junxing Yang
Heavy-metal-contaminated soil threatens human health and environmental safety. Complete remediation of contaminated soil is expensive; therefore, phytomanagement has emerged as a cost-effective alternative. The current study investigated mulberry tree (Morus alba) plantation, silkworm cultivation, and silk production as phytomanagement options. Results defined the safety of planting mulberry trees in soils with lead (Pb) and arsenic (As) concentrations lower than 369 and 180mgkg(-1), respectively. Silkworms fed with mulberry leaves collected from slightly contaminated soil exhibited productive growth and normal silk production...
May 21, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545203/influence-of-urban-vegetation-on-air-pollution-and-noise-exposure-a-case-study-in-gothenburg-sweden
#19
Jenny Klingberg, Malin Broberg, Bo Strandberg, Pontus Thorsson, Håkan Pleijel
Air pollution levels (NO2, PAHs, O3) were investigated, before (BLE) and after (ALE) leaf emergence, in the urban landscape of Gothenburg, Sweden. The aims were to study the 1) spatial and temporal variation in pollution levels between urban green areas, 2) effect of urban vegetation on air pollution levels at the same distance from a major emission source (traffic route), 3) improvement of urban air quality in urban parks compared to adjacent sites near traffic, 4) correlation between air pollution and noise in a park...
May 20, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28545083/simultaneous-inference-of-phylogenetic-and-transmission-trees-in-infectious-disease-outbreaks
#20
Don Klinkenberg, Jantien A Backer, Xavier Didelot, Caroline Colijn, Jacco Wallinga
Whole-genome sequencing of pathogens from host samples becomes more and more routine during infectious disease outbreaks. These data provide information on possible transmission events which can be used for further epidemiologic analyses, such as identification of risk factors for infectivity and transmission. However, the relationship between transmission events and sequence data is obscured by uncertainty arising from four largely unobserved processes: transmission, case observation, within-host pathogen dynamics and mutation...
May 2017: PLoS Computational Biology
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