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https://www.readbyqxmd.com/read/27920984/staphylococcus-lugdunensis-endocarditis-with-destruction-of-the-ventricular-septum-and-multiple-native-valves
#1
Celestine Ishiekwene, Monica Ghitan, Margaret Kuhn-Basti, Edward Chapnick, Yu Shia Lin
Staphylococcus lugdunensis (S. lugdunensis) is a coagulase negative staphylococcus (CoNS) that can cause destructive infective endocarditis. S. lugdunensis, unlike other CoNS, should be considered to be a pathogen. We report the first case of S. lugdunensis endocarditis causing ventricular septal defect and destruction of the aortic and mitral valves. A 53-year-old male with morbid obesity and COPD presented with intermittent fever and progressive shortness of breath for 2 weeks. Chest examination showed bilateral basal crepitations, and a grade 2 systolic murmur along the right sternal border...
2017: IDCases
https://www.readbyqxmd.com/read/27920981/infective-endocarditis-and-sj%C3%A3-gren-s-syndrome-diagnosed-simultaneously
#2
Fujiko Morita, Yuji Hirai, Kiyozumi Suzuki, Yuki Uehara, Kazunori Mitsuhashi, Atsushi Amano, Toshio Naito
Poor dentition and/or dental infection due to insufficient oral care are presumed to be risk factors for infective endocarditis (IE). We present a case of endocarditis caused by Granulicatella adiacens and Sjögren's syndrome (SS) with oral complications diagnosed simultaneously. A 67-year-old woman was admitted to our hospital with fever, general fatigue, arthralgia, and back pain. She was diagnosed with primary SS according to the criteria of the American-European Consensus Group. Transthoracic echocardiography carried out to examine her persistent fever revealed vegetation formation (14 × 5 mm) on the aortic valve and her blood cultures were positive for G...
2017: IDCases
https://www.readbyqxmd.com/read/27920956/grassland-productivity-in-response-to-nutrient-additions-and-herbivory-is-scale-dependent
#3
Erica A H Smithwick, Douglas C Baldwin, Kusum J Naithani
Vegetation response to nutrient addition can vary across space, yet studies that explicitly incorporate spatial pattern into experimental approaches are rare. To explore whether there are unique spatial scales (grains) at which grass response to nutrients and herbivory is best expressed, we imposed a large (∼3.75 ha) experiment in a South African coastal grassland ecosystem. In two of six 60 × 60 m grassland plots, we imposed a scaled sampling design in which fertilizer was added in replicated sub-plots (1 × 1 m, 2 × 2 m, and 4 × 4 m)...
2016: PeerJ
https://www.readbyqxmd.com/read/27920846/three-dimensional-computed-tomography-rendering-of-pedunculated-colon-polyp-new-clapper-bell-sign-pedunculated-polyp-at-3d-computed-tomography
#4
Marco Di Serafino, Rosa Severino, Fabia Laviani, Domenico Maroscia
The incidental detection of a tubulovillous adenoma at a contrast-enhanced computed tomography (CECT) with nondedicated protocol, performed in emergency conditions, is an uncommon finding. We report a case of a woman presenting with a subocclusive episode. A CECT scan was performed, and a pedunculated polyp could be appreciated at 3D-reconstruction images. A particular depiction of pedunculus of the polypoid lesion, resemble a clapper-bell, could help to define the vegetating lesion at the volume-rendering reconstruction images...
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920788/vegetative-and-adaptive-traits-predict-different-outcomes-for-restoration-using-hybrids
#5
Philip A Crystal, Nathanael I Lichti, Keith E Woeste, Douglass F Jacobs
Hybridization has been implicated as a driver of speciation, extinction, and invasiveness, but can also provide resistant breeding stock following epidemics. However, evaluating the appropriateness of hybrids for use in restoration programs is difficult. Past the F1 generation, the proportion of a progenitor's genome can vary widely, as can the combinations of parental genomes. Detailed genetic analysis can reveal this information, but cannot expose phenotypic alterations due to heterosis, transgressive traits, or changes in metabolism or development...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27920787/interactive-effects-of-elevated-co2-and-water-stress-on-physiological-traits-and-gene-expression-during-vegetative-growth-in-four-durum-wheat-genotypes
#6
Susan Medina, Rubén Vicente, Amaya Amador, José Luis Araus
The interaction of elevated [CO2] and water stress will have an effect on the adaptation of durum wheat to future climate scenarios. For the Mediterranean basin these scenarios include the rising occurrence of water stress during the first part of the crop cycle. In this study, we evaluated the interactive effects of elevated [CO2] and moderate to severe water stress during the first part of the growth cycle on physiological traits and gene expression in four modern durum wheat genotypes. Physiological data showed that elevated [CO2] promoted plant growth but reduced N content...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27920300/the-role-of-the-nifb1-and-nifb2-promoters-in-cell-type-specific-expression-of-two-mo-nitrogenases-in-the-cyanobacterium-anabaena-variabilis-atcc-29413
#7
Susan Vernon, Brenda S Pratte, Teresa Thiel
: Anabaena variabilis ATCC 29413 has one Mo-nitrogenase that is made under oxic growth conditions in specialized cells called heterocysts and a second Mo-nitrogenase that is made only under anoxic conditions in vegetative cells. The two large nif gene clusters responsible for these two nitrogenases are under the control of the promoter of the first gene, nifB1 or nifB2, in the operon. Despite differences in expression patterns of nifB1 and nifB2 related to oxygen and cell type, the regions upstream of their transcription start sites (tss) show striking homology, including three highly conserved sequences (CS)...
December 5, 2016: Journal of Bacteriology
https://www.readbyqxmd.com/read/27919950/development-of-a-novel-experimental-in-vitro-model-of-isothiocyanate-induced-apoptosis-in-human-malignant-melanoma-cells
#8
Theodora Mantso, Aristeidis P Sfakianos, Aithne Atkinson, Ioannis Anestopoulos, Melina Mitsiogianni, Sotirios Botaitis, Sebachedin Perente, Constantinos Simopoulos, Stavros Vasileiadis, Rodrigo Franco, Aglaia Pappa, Mihalis I Panayiotidis
BACKGROUND: Isothiocyanates are constituents of cruciferous vegetables which have been associated with reduced cancer risk partially through their ability to induce apoptosis in malignant cells including melanoma. MATERIALS AND METHODS: We have utilized human malignant melanoma (A375), epidermoid carcinoma (A431) and immortalized keratinocyte (HaCaT) cells exposed to various isothiocyanates, under different experimental conditions. RESULTS: An experimental in vitro model utilizing low isothiocyanate concentrations (0...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27919923/clonality-increases-with-snow-depth-in-the-arctic-dwarf-shrub-empetrum-hermaphroditum
#9
Miriam J Bienau, R Lutz Eckstein, Annette Otte, Walter Durka
PREMISE OF THE STUDY: Vegetative reproduction and spread through clonal growth plays an important role in arctic-alpine ecosystems with short cool growing seasons. Local variation in winter snow accumulation leads to discrete habitat types that may provide divergent conditions for sexual and vegetative reproduction. Therefore, we studied variation in clonal structure of a dominant, evergreen, dwarf shrub (Empetrum nigrum s.l. with the two taxa E. nigrum L. s.s. and E. hermaphroditum Hagerup) along a snow cover gradient and compared clonal diversity and spatial genetic structure between habitats...
December 5, 2016: American Journal of Botany
https://www.readbyqxmd.com/read/27919557/trend-shifts-in-satellite-derived-vegetation-growth-in-central-eurasia-1982-2013
#10
Hao-Jie Xu, Xin-Ping Wang, Tai-Bao Yang
Central Eurasian vegetation is critical for the regional ecological security and the global carbon cycle. However, climatic impacts on vegetation growth in Central Eurasia are uncertain. The reason for this uncertainty lies in the fact that the response of vegetation to climate change showed nonlinearity, seasonality and differences among plant functional types. Based on remotely sensed vegetation index and in-situ meteorological data for the years 1982-2013, in conjunction with the latest land cover type product, we analyzed how vegetation growth trend varied across different seasons and evaluated vegetation response to climate variables at regional, biome and pixel scales...
December 2, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27919261/caf%C3%A3-a-multicomponent-audit-and-feedback-intervention-to-improve-implementation-of-healthy-food-policy-in-primary-school-canteens-a-randomised-controlled-trial
#11
Sze Lin Yoong, Nicole Nathan, Luke Wolfenden, John Wiggers, Kathryn Reilly, Christopher Oldmeadow, Rebecca Wyse, Rachel Sutherland, Tessa Delaney, Peter Butler, Lisa Janssen, Sarah Preece, Christopher M Williams
BACKGROUND: The implementation of nutrition policies in schools has been recommended as a strategy to improve child dietary intake. Internationally, research suggests that the majority of schools do not implement these policies. In New South Wales (NSW), Australia, the NSW Healthy School Canteen Policy requires that school canteens prohibit the sale of 'red' foods (i.e. foods that are typically nutrient poor and high in energy, such as confectionary and deep-fried foods) and 'banned'drinks (i...
December 5, 2016: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/27919240/urban-rural-differences-in-the-prevalence-of-non-communicable-diseases-risk-factors-among-25-74-years-old-citizens-in-yangon-region-myanmar-a-cross-sectional-study
#12
Aung Soe Htet, Marius B Bjertness, Lhamo Y Sherpa, Marte Karoline Kjøllesdal, Win Myint Oo, Haakon E Meyer, Hein Stigum, Espen Bjertness
BACKGROUND: Recent societal and political reforms in Myanmar may upturn the socio-economy and, thus, contribute to the country's health transition. Baseline data on urban-rural disparities in non-communicable disease (NCD) risk factors are not thoroughly described in this country which has been relatively closed for more than five decades. We aim to investigate urban-rural differences in mean values and the prevalence of selected behavioral and metabolic risk factors for non-communicable diseases and 10-years risk in development of coronary heart diseases (CHD)...
December 5, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27918906/diet-and-the-risk-of-head-and-neck-cancer-among-never-smokers-and-smokers-in-a-chinese-population
#13
Carrie Butler, Yuan-Chin Amy Lee, Shuang Li, Qian Li, Chien-Jen Chen, Wan-Lun Hsu, Pen-Jen Lou, Cairong Zhu, Jian Pan, Hongbing Shen, Hongxia Ma, Lin Cai, Baochang He, Yu Wang, Xiaoyan Zhou, Qinghai Ji, Baosen Zhou, Wei Wu, Jie Ma, Paolo Boffetta, Zuo-Feng Zhang, Min Dai, Mia Hashibe
BACKGROUND: Few studies have been conducted in China to investigate the association between diet and the risk of head-and-neck cancer (HNC). The aim of this study was to determine the relationship between diet and HNC risk in the Chinese population and to examine whether smoking status has any effect on the risk. METHODS: Our multicenter case-control study included 921 HNC cases and 806 controls. We obtained information on the frequency of both animal- and plant-based food consumption...
December 2, 2016: Cancer Epidemiology
https://www.readbyqxmd.com/read/27918471/polyphenols-and-dna-damage-a-mixed-blessing
#14
REVIEW
Amaya Azqueta, Andrew Collins
Polyphenols are a very broad group of chemicals, widely distributed in plant foods, and endowed with antioxidant activity by virtue of their numerous phenol groups. They are widely studied as putative cancer-protective agents, potentially contributing to the cancer preventive properties of fruits and vegetables. We review recent publications relating to human trials, animal experiments and cell culture, grouping them according to whether polyphenols are investigated in whole foods and drinks, in plant extracts, or as individual compounds...
December 3, 2016: Nutrients
https://www.readbyqxmd.com/read/27918138/association-of-essential-trace-metals-in-maternal-hair-with-the-risk-of-neural-tube-defects-in-offspring
#15
Lailai Yan, Bin Wang, Zhenjiang Li, Yaqiong Liu, Wenhua Huo, Jingyu Wang, Zhiwen Li, Aiguo Ren
BACKGROUND: The relationship between essential trace metals (ETMs) and the risk of neural tube defects (NTDs) is still unclear. One of the challenges is to evaluate the intake of ETMs of women during their early period of pregnancy. We proposed the hypothesis that an ETM deficiency in women during their early period of pregnancy is associated with an elevated risk of NTDs in offspring. METHODS: We recruited 191 women with NTD-affected pregnancies (case group) and 261 women who delivered healthy infants (control group)...
December 5, 2016: Birth Defects Research. Part A, Clinical and Molecular Teratology
https://www.readbyqxmd.com/read/27917981/the-role-of-pastoralism-in-regulating-ecosystem-services
#16
M A Seid, N J Kuhn, T Z Fikre
Pastoralism is rarely viewed as a major future form of land use, because of well-documented cases of rangeland degradation, attributed to irrational overstocking by pastoralists, and the subsequent losses of ecosystem services. However, pastoralists were actually encouraged to settle and adopt such strategies, copied from rangelands with higher and more reliable rainfall. This curtailed mobility resulted in a shift from opportunistic and extensive land use to more intensive and settled forms of use. The purpose of this review is to examine the link between pastoralism and the provision of ecosystem services by rangelands, focusing on biodiversity conservation and carbon sequestration...
November 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/27917979/ecology-mobility-and-labour-dynamic-pastoral-herd-management-in-an-uncertain-world
#17
B Butt
In this review, the author discusses how pastoralism, and its many constituent components, is increasingly being recognised as in tune with the changing political and ecological nature of rangelands. He describes ways in which the literature reflects this changing attitude, outlines how rangelands respond to changes in climate and explores the evolving use of livestock resources. In addition, he describes the growing recognition of factors other than livestock density that affect rangeland vegetation (i.e. density-independent relationships)...
November 2016: Revue Scientifique et Technique
https://www.readbyqxmd.com/read/27917953/the-core-subunit-of-a-chromatin-remodeling-complex-zmchb101-plays-essential-roles-in-maize-growth-and-development
#18
Xiaoming Yu, Lili Jiang, Rui Wu, Xinchao Meng, Ai Zhang, Ning Li, Qiong Xia, Xin Qi, Jinsong Pang, Zheng-Yi Xu, Bao Liu
ATP-dependent chromatin remodeling complexes play essential roles in the regulation of diverse biological processes by formulating a DNA template that is accessible to the general transcription apparatus. Although the function of chromatin remodelers in plant development has been studied in A. thaliana, how it affects growth and development of major crops (e.g., maize) remains uninvestigated. Combining genetic, genomic and bioinformatic analyses, we show here that the maize core subunit of chromatin remodeling complex, ZmCHB101, plays essential roles in growth and development of maize at both vegetative and reproductive stages...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917749/introduction-of-complementary-foods-in-sweden-and-impact-of-maternal-education-on-feeding-practices
#19
Sofia Klingberg, Johnny Ludvigsson, Hilde K Brekke
OBJECTIVE: To describe the introduction of complementary foods in a population-based cohort in relation to recommendations and explore the possible impact of maternal education on infant feeding practices. DESIGN: Prospective data from the All Babies in Southeast Sweden (ABIS) cohort study were used. The ABIS study invited all infants born in south-east Sweden during October 1997-October 1999 (n 21 700) to participate. A questionnaire was completed for 16 022 infants...
December 5, 2016: Public Health Nutrition
https://www.readbyqxmd.com/read/27917576/karyotype-diversity-and-genome-size-variation-in-neotropical-maxillariinae-orchids
#20
A P Moraes, S Koehler, J S Cabral, S S L Gomes, L F Viccini, F Barros, L P Felix, M Guerra, E R Forni-Martins
(1) Orchidaceae is a widely distributed plant family with a very diverse vegetative and floral morphology and such variability is also reflected in their karyotypes. However, since only a low proportion of Orchidaceae has been analysed for chromosome data, a greater diversity may await to be unveiled. Here we analyse both genome size (GS) and karyotype in two subtribes recently included in the broadened Maxillariineae to detect how much chromosome and GS variation there are in these groups and to evaluate which genome rearrangements were involved in the species evolution...
December 5, 2016: Plant Biology
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