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PloS One

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https://www.readbyqxmd.com/read/28742883/effects-of-oral-florfenicol-and-azithromycin-on-gut-microbiota-and-adipogenesis-in-mice
#1
Rui Li, Hexing Wang, Qingfeng Shi, Na Wang, Zhijie Zhang, Chenglong Xiong, Jianxiang Liu, Yue Chen, Lufang Jiang, Qingwu Jiang
Certain antibiotics detected in urine are associated with childhood obesity. In the current experimental study, we investigated two representative antibiotics detected in urine, florfenicol and azithromycin, for their early effects on adipogenesis, gut microbiota, short-chain fatty acids (SCFAs), and bile acids in mice. Thirty C57BL/6 mice aged four weeks were randomly divided into three groups (florfenicol, azithromycin and control). The two experimental groups were administered florfenicol or azithromycin at 5 mg/kg/day for four weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28742882/t-cell-intrinsic-tlr2-stimulation-promotes-il-10-expression-and-suppressive-activity-by-cd45rbhi-t-cells
#2
Janice C Jun, Mark B Jones, Douglas M Oswald, Edward S Sim, Amruth R Jonnalagadda, Lori S C Kreisman, Brian A Cobb
While Toll-like receptors (TLRs) represent one of the best characterized innate immune pathways, evidence suggests that TLRs are not restricted to innate leukocytes and some epithelial cells, but are also expressed in T cells. Specifically, published evidence focusing on FoxP3+ regulatory T cells demonstrate that they express functional TLR2, which is already known among the TLR family for its association with immune suppression; however, little is known about the relationship between T cell-intrinsic TLR2 binding and cytokine production, T cell differentiation, or T cell receptor (TCR) stimulation...
2017: PloS One
https://www.readbyqxmd.com/read/28742881/epiphytes-in-wooded-pastures-isolation-matters-for-lichen-but-not-for-bryophyte-species-richness
#3
Thomas Kiebacher, Christine Keller, Christoph Scheidegger, Ariel Bergamini
Sylvo-pastoral systems are species-rich man-made landscapes that are currently often severely threatened by abandonment or management intensification. At low tree densities, single trees in these systems represent habitat islands for epiphytic cryptogams. Here, we focused on sycamore maple (Acer pseudoplatanus) wooded pastures in the northern European Alps. We assessed per tree species richness of bryophytes and lichens on 90 sycamore maple trees distributed across six study sites. We analysed the effects of a range of explanatory variables (tree characteristics, environmental variables and isolation measures) on the richness of epiphytic bryophytes and lichens and various functional subgroups (based on diaspore size, habitat preference and red list status)...
2017: PloS One
https://www.readbyqxmd.com/read/28742879/epidemiological-investigations-of-the-introduction-of-porcine-reproductive-and-respiratory-syndrome-virus-in-chile-2013-2015
#4
Víctor Neira, Barbara Brito, Juan Mena, Marie Culhane, Maria Ignacia Apel, Vanessa Max, Patricio Perez, Valentina Moreno, Christian Mathieu, Magdalena Johow, Catalina Badia, Montserrat Torremorell, Rafael Medina, Rene Ortega
Porcine reproductive and respiratory syndrome (PRRS) is endemic in most pork producing countries. In Chile, eradication of PRRS virus (PRRSV) was successfully achieved in 2009 as a result of the combined efforts of producers and the animal health authorities. In October 2013, after several years without detecting PRRSV under surveillance activities, suspected cases were confirmed on a commercial swine farm. Here, we describe the PRRS epidemic in Chile between October 2013 and April 2015, and we studied the origins and spread of PRRSV throughout the country using official surveillance data and Bayesian phylogenetic analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28742878/assessment-of-the-effect-of-enteromorpha-prolifera-on-bacterial-community-structures-in-aquaculture-environment
#5
Guorong Lin, Fulin Sun, Chunzhong Wang, Li Zhang, Xinzhong Zhang
In recent years, Enteromorpha prolifera blooms had serious impacts on costal environments and fisheries in China. Nevertheless, the effects of E. prolifera on microbial ecology remain unknown. In this study, for the first time, an Illumina sequencing analysis was used to investigate bacterial communities in source water, aquaculture ponds with E. prolifera, and an aquaculture pond in which E. prolifera -free. Principal coordinate and phylogenic analyses revealed obvious differences among the bacterial communities in the pond water with and without E...
2017: PloS One
https://www.readbyqxmd.com/read/28742877/predictors-of-mortality-in-autoimmune-disease-patients-with-concurrent-cytomegalovirus-infections-detected-by-quantitative-real-time-pcr
#6
Kyoung Yong Lee, Byung-Woo Yoo, Sung Soo Ahn, William Han Bae, Hyukmin Lee, Seung Min Jung, Sang-Won Lee, Yong-Beom Park, Jason Jungsik Song
OBJECTIVE: Cytomegaloviruses (CMV) can have a significant impact on the prognosis of immunocompromised patients. Unlike in the transplantation and AIDS fields, only a few studies on CMV infections have been published in the field of autoimmunity. In this study, we examined the clinical outcomes of CMV infections in patients with autoimmune diseases at a single tertiary medical institution. METHODS: A retrospective study was performed to identify the mortality risk factors associated with CMV infections in patients with autoimmune diseases...
2017: PloS One
https://www.readbyqxmd.com/read/28742876/expression-of-uncharacterized-male-germ-cell-specific-genes-and-discovery-of-novel-sperm-tail-proteins-in-mice
#7
Jun Tae Kwon, Sera Ham, Suyeon Jeon, Youil Kim, Seungmin Oh, Chunghee Cho
The identification and characterization of germ cell-specific genes are essential if we hope to comprehensively understand the mechanisms of spermatogenesis and fertilization. Here, we searched the mouse UniGene databases and identified 13 novel genes as being putatively testis-specific or -predominant. Our in silico and in vitro analyses revealed that the expressions of these genes are testis- and germ cell-specific, and that they are regulated in a stage-specific manner during spermatogenesis. We generated antibodies against the proteins encoded by seven of the genes to facilitate their characterization in male germ cells...
2017: PloS One
https://www.readbyqxmd.com/read/28742875/the-significance-of-inadequate-transcranial-doppler-studies-in-children-with-sickle-cell-disease
#8
Simon Greenwood, Colin Deane, Oliver L Rees, Ben Freedman, Suresh Kumar, Naser Ben Ramadan, Sarah Wilkinson, Grant Marais, Julie Lord, Subarna Chakravorty, Susan E Height, Kate Gardner, David C Rees
Sickle cell disease (SCD) is a common cause of cerebrovascular disease in childhood. Primary stroke prevention is effective using transcranial Doppler (TCD) scans to measure intracranial blood velocities, and regular blood transfusions or hydroxycarbamide when these are abnormal. Inadequate TCD scans occur when it is not possible to measure velocities in all the main arteries. We have investigated the prevalence and significance of this in a retrospective audit of 3915 TCD scans in 1191 children, performed between 2008 and 2015...
2017: PloS One
https://www.readbyqxmd.com/read/28742874/the-relationship-between-early-and-late-event-related-potentials-and-temperament-in-adolescents-with-and-without-adhd
#9
Brittany R Alperin, Hanna Gustafsson, Christiana Smith, Sarah L Karalunas
Differences in emotional processing are prevalent in adolescents with attention deficit/hyperactivity disorder (ADHD) and are related to clinical impairment, but substantial heterogeneity exists. Within ADHD, some individuals experience difficulty with positive/approach emotions, negative/withdrawal emotions, or both. These problems may reflect differences in emotional reactivity, emotion regulation, or a combination, and the neurophysiological correlates remain unclear. Event-related potentials were collected from 109 adolescents (49 with ADHD) while they completed an emotional go/no-go task with three conditions: happy (positive/approach), fear (negative/withdrawal), and neutral...
2017: PloS One
https://www.readbyqxmd.com/read/28742873/orienting-towards-social-features-in-naturalistic-scenes-is-reflexive
#10
Lara Rösler, Albert End, Matthias Gamer
Saliency-based models of visual attention postulate that, when a scene is freely viewed, attention is predominantly allocated to those elements that stand out in terms of their physical properties. However, eye-tracking studies have shown that saliency models fail to predict gaze behavior accurately when social information is included in an image. Notably, gaze pattern analyses revealed that depictions of human beings are heavily prioritized independent of their low-level physical saliency. What remains unknown, however, is whether the prioritization of such social features is a reflexive or a voluntary process...
2017: PloS One
https://www.readbyqxmd.com/read/28742872/the-wheat-wrky-transcription-factors-tawrky49-and-tawrky62-confer-differential-high-temperature-seedling-plant-resistance-to-puccinia-striiformis-f-sp-tritici
#11
Junjuan Wang, Fei Tao, Wei Tian, Zhongfeng Guo, Xianming Chen, Xiangming Xu, Hongsheng Shang, Xiaoping Hu
WRKY transcription factors (TFs) play crucial roles in plant resistance responses to pathogens. Wheat stripe rust, caused by the fungal pathogen Puccinia striiformis f. sp. tritici (Pst), is a destructive disease of wheat (Triticum aestivum) worldwide. In this study, the two WRKY genes TaWRKY49 and TaWRKY62 were originally identified in association with high-temperature seedling-plant resistance to Pst (HTSP) resistance in wheat cultivar Xiaoyan 6 by RNA-seq. Interestingly, the expression levels of TaWRKY49 and TaWRKY62 were down- and up-regulated, respectively, during HTSP resistance in response to Pst...
2017: PloS One
https://www.readbyqxmd.com/read/28742871/comprehensive-immune-profiling-reveals-substantial-immune-system-alterations-in-a-subset-of-patients-with-amyotrophic-lateral-sclerosis
#12
Michael P Gustafson, Nathan P Staff, Svetlana Bornschlegl, Greg W Butler, Mary L Maas, Mohamed Kazamel, Adeel Zubair, Dennis A Gastineau, Anthony J Windebank, Allan B Dietz
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease with a median lifespan of 2-3 years after diagnosis. There are few meaningful treatments that alter progression in this disease. Preclinical and clinical studies have demonstrated that neuroinflammation may play a key role in the progression rate of ALS. Despite this, there are no validated biomarkers of neuroinflammation for use in clinical practice or clinical trials. Biomarkers of neuroinflammation could improve patient management, provide new therapeutic targets, and possibly help stratify clinical trial selection and monitoring...
2017: PloS One
https://www.readbyqxmd.com/read/28742870/factors-contributing-to-food-insecurity-among-women-living-with-hiv-in-the-dominican-republic-a-qualitative-study
#13
Kathryn P Derose, Denise D Payán, María Altagracia Fulcar, Sergio Terrero, Ramón Acevedo, Hugo Farías, Kartika Palar
BACKGROUND: Food insecurity contributes to poor health outcomes among people living with HIV. In Latin America and the Caribbean, structural factors such as poverty, stigma, and inequality disproportionately affect women and may fuel both the HIV epidemic and food insecurity. METHODS: We examined factors contributing to food insecurity among women living with HIV (WLHIV) in the Dominican Republic (DR). Data collection included in-depth, semi-structured interviews in 2013 with 30 WLHIV with indications of food insecurity who resided in urban or peri-urban areas and were recruited from local HIV clinics...
2017: PloS One
https://www.readbyqxmd.com/read/28742868/combining-ability-of-highland-tropic-adapted-potato-for-tuber-yield-and-yield-components-under-drought
#14
Betaw Hirut, Hussein Shimelis, Mengistu Fentahun, Merideth Bonierbale, Manuel Gastelo, Asrat Asfaw
Recurrent drought and late blight disease are the major factors limiting potato productivity in the northwest Ethiopian highlands. Incorporating drought tolerance and late blight resistance in the same genotypes will enable the development of cultivars with high and stable yield potential under erratic rainfall conditions. The objectives of this study were to assess combining ability effects and gene action for tuber yield and traits related to drought tolerance in the International Potato Centre's (CIP's) advanced clones from the late blight resistant breeding population B group 'B3C2' and to identify promising parents and families for cultivar development...
2017: PloS One
https://www.readbyqxmd.com/read/28742867/assessing-unmet-needs-in-patients-with-cancer-an-investigation-of-differential-item-functioning-of-the-needs-evaluation-questionnaire-across-gender-age-and-phase-of-the-disease
#15
Francesca Chiesi, Andrea Bonacchi, Caterina Primi, Guido Miccinesi
OBJECTIVE: The main aim of this study was to provide evidence of the broad employability of the NEQ with patients of different gender and age with cancer in different phases of the disease and care process, using an Item Response Theory (IRT) approach and investigating Differential Item Functioning (DIF). METHODS: The NEQ was completed by 762 patients visiting, consecutively, outpatient clinics or admitted to oncology wards. Patients included in the study had different primary tumor sites and were in different phases of the disease and care process...
2017: PloS One
https://www.readbyqxmd.com/read/28742866/contribution-of-factor-h-binding-protein-sequence-to-the-cross-reactivity-of-meningococcal-native-outer-membrane-vesicle-vaccines-with-over-expressed-fhbp-variant-group-1
#16
Arianna Marini, Omar Rossi, Maria Grazia Aruta, Francesca Micoli, Simona Rondini, Serafina Guadagnuolo, Isabel Delany, Ian R Henderson, Adam F Cunningham, Allan Saul, Calman A MacLennan, Oliver Koeberling
Factor H-binding protein (fHbp) is an important meningococcal vaccine antigen. Native outer membrane vesicles with over-expressed fHbp (NOMV OE fHbp) have been shown to induce antibodies with broader functional activity than recombinant fHbp (rfHbp). Improved understanding of this broad coverage would facilitate rational vaccine design. We performed a pair-wise analysis of 48 surface-exposed amino acids involved in interacting with factor H, among 383 fHbp variant group 1 sequences. We generated isogenic NOMV-producing meningococcal strains from an African serogroup W isolate, each over-expressing one of four fHbp variant group 1 sequences (ID 1, 5, 9, or 74), including those most common among invasive African meningococcal isolates...
2017: PloS One
https://www.readbyqxmd.com/read/28742865/a-novel-mitochondrial-genome-of-arborophila-and-new-insight-into-arborophila-evolutionary-history
#17
Chaochao Yan, Biqin Mou, Yang Meng, Feiyun Tu, Zhenxin Fan, Megan Price, Bisong Yue, Xiuyue Zhang
The lineage of the Bar-backed Partridge (Arborophila brunneopectus) was investigated to determine the phylogenetic relationships within Arborophila as the species is centrally distributed within an area covered by the distributions of 22 South-east Asian hill partridge species. The complete mitochondrial genome (mitogenome) of A. brunneopectus was determined and compared with four other hill partridge species mitogenomes. NADH subunit genes are radical in hill partridge mitogenomes and contain the most potential positive selective sites around where variable sites are abundant...
2017: PloS One
https://www.readbyqxmd.com/read/28742864/limited-grounding-line-advance-onto-the-west-antarctic-continental-shelf-in-the-easternmost-amundsen-sea-embayment-during-the-last-glacial-period
#18
Johann P Klages, Gerhard Kuhn, Claus-Dieter Hillenbrand, James A Smith, Alastair G C Graham, Frank O Nitsche, Thomas Frederichs, Patrycja E Jernas, Karsten Gohl, Lukas Wacker
Precise knowledge about the extent of the West Antarctic Ice Sheet (WAIS) at the Last Glacial Maximum (LGM; c. 26.5-19 cal. ka BP) is important in order to 1) improve paleo-ice sheet reconstructions, 2) provide a robust empirical framework for calibrating paleo-ice sheet models, and 3) locate potential shelf refugia for Antarctic benthos during the last glacial period. However, reliable reconstructions are still lacking for many WAIS sectors, particularly for key areas on the outer continental shelf, where the LGM-ice sheet is assumed to have terminated...
2017: PloS One
https://www.readbyqxmd.com/read/28742863/antibacterial-activity-of-tannins-isolated-from-sapium-baccatum-extract-and-use-for-control-of-tomato-bacterial-wilt
#19
Thuy Thu Vu, Hun Kim, Vu Khac Tran, Hoang Dinh Vu, Tien Xuan Hoang, Jae Woo Han, Yong Ho Choi, Kyoung Soo Jang, Gyung Ja Choi, Jin-Cheol Kim
In the search for new antibacterial agents from natural sources, we revealed that a crude methanol extract of Sapium baccatum was highly active against Ralstonia solanacearum, a causal agent of a serious disease called bacterial wilt of tomato. The bioassay-guided fractionation of this extract resulted in the isolation of seven known active compounds, including gallic acid, methyl gallate, corilagin, tercatain, chebulagic acid, chebulinic acid, and quercetin 3-O-α-L-arabinopyranoside. Their chemical structures were determined by electrospray ionization mass spectrometry and nuclear magnetic resonance spectroscopy...
2017: PloS One
https://www.readbyqxmd.com/read/28742862/plio-pleistocene-phylogeography-of-the-southeast-asian-blue-panchax-killifish-aplocheilus-panchax
#20
Samantha V Beck, Gary R Carvalho, Axel Barlow, Lukas Rüber, Heok Hui Tan, Estu Nugroho, Daisy Wowor, Siti Azizah Mohd Nor, Fabian Herder, Zainal A Muchlisin, Mark de Bruyn
The complex climatic and geological history of Southeast Asia has shaped this region's high biodiversity. In particular, sea level fluctuations associated with repeated glacial cycles during the Pleistocene both facilitated, and limited, connectivity between populations. In this study, we used data from two mitochondrial and three anonymous nuclear markers to determine whether a fresh/brackish water killifish, Aplocheilus panchax, Hamilton, 1822, could be used to further understand how climatic oscillations and associated sea level fluctuations have shaped the distribution of biota within this region, and whether such patterns show evidence of isolation within palaeodrainage basins...
2017: PloS One
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