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https://www.readbyqxmd.com/read/28342970/not-in-one-metric-neuroticism-modulates-different-resting-state-metrics-within-distinctive-brain-regions
#1
Claudio Gentili, Ioana Alina Cristea, Emiliano Ricciardi, Nicola Vanello, Cristian Popita, Daniel David, Pietro Pietrini
INTRODUCTION: Neuroticism is a complex personality trait encompassing diverse aspects. Notably, high levels of neuroticism are related to the onset of psychiatric conditions, including anxiety and mood disorders. Personality traits are stable individual features; therefore, they can be expected to be associated with stable neurobiological features, including the Brain Resting State (RS) activity as measured by fMRI. Several metrics have been used to describe RS properties, yielding rather inconsistent results...
March 22, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28342947/what-good-are-positive-emotions-for-treatment-trait-positive-emotionality-predicts-response-to-cognitive-behavioral-therapy-for-anxiety
#2
Charles T Taylor, Sarah E Knapp, Jessica A Bomyea, Holly J Ramsawh, Martin P Paulus, Murray B Stein
OBJECTIVE: Cognitive behavioral therapy (CBT) is empirically supported for the treatment of anxiety disorders; however, not all individuals achieve recovery following CBT. Positive emotions serve a number of functions that theoretically should facilitate response to CBT - they promote flexible patterns of information processing and assimilation of new information, encourage approach-oriented behavior, and speed physiological recovery from negative emotions. We conducted a secondary analysis of an existing clinical trial dataset to test the a priori hypothesis that individual differences in trait positive emotions would predict CBT response for anxiety...
March 22, 2017: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28340365/emotion-regulation-strategies-mediate-the-associations-of-positive-and-negative-affect-to-upper-extremity-physical-function
#3
Mojtaba Talaei-Khoei, Hora Nemati-Rezvani, Stefan F Fischerauer, David Ring, Neal Chen, Ana-Maria Vranceanu
BACKGROUND: The Gross process model of emotion regulation holds that emotion-eliciting situations (e.g. musculoskeletal illness) can be strategically regulated to determine the final emotional and behavioral response. Also, there is some evidence that innate emotional traits may predispose an individual to a particular regulating coping style. METHODS: We enrolled 107 patients with upper extremity musculoskeletal illness in this cross-sectional study. They completed self-report measures of positive and negative affect, emotion regulation strategies (cognitive reappraisal and expressive suppression), upper extremity physical function, pain intensity, and demographics...
March 12, 2017: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/28340274/regularized-quantile-regression-applied-to-genome-enabled-prediction-of-quantitative-traits
#4
M Nascimento, F F E Silva, M D V de Resende, C D Cruz, A C C Nascimento, J M S Viana, C F Azevedo, L M A Barroso
Genomic selection (GS) is a variant of marker-assisted selection, in which genetic markers covering the whole genome predict individual genetic merits for breeding. GS increases the accuracy of breeding values (BV) prediction. Although a variety of statistical models have been proposed to estimate BV in GS, few methodologies have examined statistical challenges based on non-normal phenotypic distributions, e.g., skewed distributions. Traditional GS models estimate changes in the phenotype distribution mean, i...
March 22, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28339981/transcriptome-analysis-of-comb-and-testis-from-rose-comb-silky-chicken-r1-r1-and-beijing-fatty-wild-type-chicken-r-r
#5
Y Wang, J Li, C Feng, Y Zhao, X Hu, N Li
Rose-comb was one of the chicken comb-variants first used by Bateson and Punnet in 1902 to demonstrate Mendelian inheritance in animals. Rose-comb is a monogenic trait that has been widely described in chickens. It is caused by a large structural rearrangement that leads to mis-expression of transcription factor MNR2 on chromosome 7. Rose-comb has pleiotropic effects in homozygous roosters, which is associated with poor sperm mobility. It was postulated that this is caused by the disruption of the CCDC108 gene located at the distal inversion breakpoint...
March 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339471/expression-quantitative-trait-loci-for-pax8-contributes-to-the-prognosis-of-hepatocellular-carcinoma
#6
Shijie Ma, Jianshui Yang, Ci Song, Zijun Ge, Jing Zhou, Guoxin Zhang, Zhibin Hu
Paired-box family member PAX8 encodes a transcription factor that has a role in cell differentiation and cell growth and may participate in the prognosis of hepatocellular carcinoma (HCC). By bioinformatics analysis, we identified several single nucleotide polymorphisms (SNPs) within a newly identified long non-coding RNA (lncRNA) AC016683.6 as expression quantitative trait loci (eQTLs) for PAX8. Hence, we hypothesized that PAX8eQTLs in lncRNA AC016683.6 may influence the HCC prognosis. We then performed a case-only study to assess the association between the two SNPs as well as the prognosis of HCC in 331 HBV-positive HCC patients without surgical treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28338916/violent-offenders-respond-to-provocations-with-high-amygdala-and-striatal-reactivity
#7
Sofi da Cunha-Bang, Patrick MacDonald Fisher, Liv Vadskjær Hjordt, Erik Perfalk, Anine Persson Skibsted, Camilla Bock, Anders Ohlhues Baandrup, Marie Deen Christensen, Carsten Thomsen, Dorte Sestoft, Gitte M Knudsen
The ability to successfully suppress impulses and angry affect is fundamental to control aggressive reactions following provocations. The aim of this study was to examine neural responses to provocations and aggression using a laboratory model of reactive aggression. We used a novel functional magnetic resonance imaging point-subtraction aggression paradigm in 44 men, of whom 18 were incarcerated violent offenders and 26 were control non-offenders. We measured brain activation following provocations (monetary subtractions), while the subjects had the possibility to behave aggressively or pursue monetary rewards...
March 8, 2017: Social Cognitive and Affective Neuroscience
https://www.readbyqxmd.com/read/28338915/ungulate-herbivory-alters-leaf-functional-traits-and-recruitment-of-regenerating-aspen
#8
Aaron C Rhodes, Val Anderson, Samuel B St Clair
Herbivory by ungulates can affect forest regeneration success, but its long-term impacts on tree function and recruitment are less studied. We evaluated strategies of resistance, tolerance and vertical escape against ungulate herbivory by evaluating leaf traits (photosynthesis, morphology and chemistry) and growth rates of aspen in the presence and absence of ungulate herbivores 1, 2, 3 and 26 years after fires initiated aspen suckering. Over the initial 3-year period, ~60% of aspen stems in unfenced plots showed evidence of being browsed by ungulates...
March 3, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28338906/vertical-leaf-mass-per-area-gradient-of-mature-sugar-maple-reflects-both-height-driven-increases-in-vascular-tissue-and-light-driven-increases-in-palisade-layer-thickness
#9
Adam P Coble, Molly A Cavaleri
A key trait used in canopy and ecosystem function modeling, leaf mass per area (LMA), is influenced by changes in both leaf thickness and leaf density (LMA = Thickness × Density). In tall trees, LMA is understood to increase with height through two primary mechanisms: (i) increasing palisade layer thickness (and thus leaf thickness) in response to light and/or (ii) reduced cell expansion and intercellular air space in response to hydrostatic constraints, leading to increased leaf density. Our objective was to investigate within-canopy gradients in leaf anatomical traits in order to understand environmental factors that influence leaf morphology in a sugar maple (Acer saccharum Marshall) forest canopy...
March 3, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28338840/differences-in-functional-and-xylem-anatomical-features-allow-cistus-species-to-co-occur-and-cope-differently-with-drought-in-the-mediterranean-region
#10
José M Torres-Ruiz, Hervé Cochard, Elsa Fonseca, Eric Badel, Luiz Gazarini, Margarida Vaz
A significant increase in drought events frequency is predicted for the next decades induced by climate change, potentially affecting plant species mortality rates and distributions worldwide. The main trigger of plant mortality is xylem hydraulic failure due to embolism and induced by the low pressures at which water is transported through xylem. As the Mediterranean basin will be severely affected by climate change, the aim of this study was to provide novel information about drought resistance and tolerance of one of its most widely distributed and common genera as a case study: the genus Cistus...
February 27, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28338800/a-steady-state-stomatal-model-of-balanced-leaf-gas-exchange-hydraulics-and-maximal-source-sink-flux
#11
Teemu Hölttä, Anna Lintunen, Tommy Chan, Annikki Mäkelä, Eero Nikinmaa
Trees must simultaneously balance their CO2 uptake rate via stomata, photosynthesis, the transport rate of sugars and rate of sugar utilization in sinks while maintaining a favourable water and carbon balance. We demonstrate using a numerical model that it is possible to understand stomatal functioning from the viewpoint of maximizing the simultaneous photosynthetic production, phloem transport and sink sugar utilization rate under the limitation that the transpiration-driven hydrostatic pressure gradient sets for those processes...
February 23, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28338794/genome-wide-association-study-unravels-the-genetic-control-of-the-apple-volatilome-and-its-interplay-with-fruit-texture
#12
Brian Farneti, Mario Di Guardo, Iuliia Khomenko, Luca Cappellin, Franco Biasioli, Riccardo Velasco, Fabrizio Costa
Fruit quality represents a fundamental factor guiding consumers' preferences. Among apple quality traits, volatile organic compounds and texture features play a major role. Proton Transfer Reaction-Time of Flight-Mass Spectrometry (PTR-ToF-MS), coupled with an artificial chewing device, was used to profile the entire apple volatilome of 162 apple accessions, while the fruit texture was dissected with a TAXT-AED texture analyzer. The array of volatile compounds was classed into seven major groups and used in a genome-wide association analysis carried out with 9142 single nucleotide polymorphisms (SNPs)...
February 24, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338739/retention-of-stored-water-enables-tropical-tree-saplings-to-survive-extreme-drought-conditions
#13
Brett T Wolfe
Trees generally maintain a small safety margin between the stem water potential (Ψstem) reached during seasonal droughts and the Ψstem associated with their mortality. This pattern may indicate that species face similar mortality risk during extreme droughts. However, if tree species vary in their ability to regulate Ψstem, then safety margins would poorly predict drought mortality. To explore variation among species in Ψstem regulation, I subjected potted saplings of six tropical tree species to extreme drought and compared their responses with well-watered plants and pretreatment reference plants...
February 9, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28338717/divergences-in-hydraulic-architecture-form-an-important-basis-for-niche-differentiation-between-diploid-and-polyploid-betula-species-in-ne-china
#14
Wei-Wei Zhang, Jia Song, Miao Wang, Yan-Yan Liu, Na Li, Yong-Jiang Zhang, N Michele Holbrook, Guang-You Hao
Habitat differentiation between polyploid and diploid plants are frequently observed, with polyploids usually occupying more stressed environments. In woody plants, polyploidization can greatly affect wood characteristics but knowledge of its influences on xylem hydraulics is scarce. The four Betula species in NE China, representing two diploids and two polyploids with obvious habitat differentiation, provide an exceptional study system for investigating the impact of polyploidization on environmental adaptation of trees from the point view of xylem hydraulics...
February 13, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28338712/molecular-mechanisms-of-flowering-under-long-days-and-stem-growth-habit-in-soybean
#15
Dong Cao, Ryoma Takeshima, Chen Zhao, Baohui Liu, Abe Jun, Fanjiang Kong
Precise timing of flowering is critical to crop adaptation and productivity in a given environment. A number of classical E genes controlling flowering time and maturity have been identified in soybean [Glycine max (L.) Merr.]. The public availability of the soybean genome sequence has accelerated the identification of orthologues of Arabidopsis flowering genes and their functional analysis, and has allowed notable progress towards understanding the molecular mechanisms of flowering in soybean. Great progress has been made particularly in identifying genes and modules that inhibit flowering in long-day conditions, because a reduced or absent inhibition of flowering by long daylengths is an essential trait for soybean, a short-day (SD) plant, to expand its adaptability toward higher latitude environments...
October 20, 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28338709/relationship-between-leaf-functional-traits-and-productivity-in-aquilaria-crassna-thymelaeaceae-plantations-a-tool-to-aid-in-the-early-selection-of-high-yielding-trees
#16
Arlene López-Sampson, Lucas A Cernusak, Tony Page
Physiological traits are frequently used as indicators of tree productivity. Aquilaria species growing in a research planting were studied to investigate relationships between leaf-productivity traits and tree growth. Twenty-eight trees were selected to measure isotopic composition of carbon (δ13C) and nitrogen (δ15N) and monitor six leaf attributes. Trees were sampled randomly within each of four diametric classes (at 150 mm above ground level) ensuring the variability in growth of the whole population was represented...
February 15, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28337213/root-branching-is-a-leading-root-trait-of-the-plant-economics-spectrum-in-temperate-trees
#17
Rebecca Liese, Katrin Alings, Ina C Meier
Global vegetation models use conceived relationships between functional traits to simulate ecosystem responses to environmental change. In this context, the concept of the leaf economics spectrum (LES) suggests coordinated leaf trait variation, and separates species which invest resources into short-lived leaves with a high expected energy return rate from species with longer-lived leaves and slower energy return. While it has been assumed that being fast (acquisitive) or slow (conservative) is a general feature for all organ systems, the translation of the LES into a root economics spectrum (RES) for tree species has been hitherto inconclusive...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28336772/gmilpa1-encoding-an-anaphase-promoting-complex-like-protein-affects-leaf-petiole-angle
#18
Jinshan Gao, Suxin Yang, Weng Cheng, Yongfu Fu, Jiantian Leng, Xiaohui Yuan, Ning Jiang, Jianxin Ma, Xianzhong Feng
Leaf petiole angle is an important plant architectural trait that affects canopy coverage, photosynthetic efficiency, and ultimately productivity in many legume crops. However, the genetic basis underlying this trait remains unclear. Here, we report the identification, isolation, and functional characterization of Glycine max Increased Leaf Petiole Angle 1 (GmILPA1), a gene encoding an APC8-like protein, that is a subunit of the anaphase-promoting complex/cyclosome (APC/C) in soybean. A gamma ray-induced deletion of a fragment involving the 4th exon of GmILPA1 and its flanking sequences led to extension of the 3rd exon and formation of a novel 3'UTR from intronic and intergenic sequences...
March 23, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28335789/sex-determining-region-y-box-protein-3-induces-epithelial-mesenchymal-transition-in-osteosarcoma-cells-via-transcriptional-activation-of-snail1
#19
Manle Qiu, Daoyun Chen, Chaoyong Shen, Ji Shen, Huakun Zhao, Yaohua He
BACKGROUND: The transcription factor sex-determining region Y-box protein 3 (SOX3) plays important roles in various types of cancer. However, its expression and function have not yet been elucidated in osteosarcoma (OS). METHODS: The expression levels of SOX3 in OS tissues and OS cell lines were determined by quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot analysis. The effects of SOX3 expression on OS cell biological traits were investigated by overexpressing and downregulating SOX3 protein...
March 23, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28335481/genetic-variants-contributing-to-colistin-cytotoxicity-identification-of-tgif1-and-hoxd10-using-a-population-genomics-approach
#20
Michael T Eadon, Ronald J Hause, Amy L Stark, Ying-Hua Cheng, Heather E Wheeler, Kimberly S Burgess, Eric A Benson, Patrick N Cunningham, Robert L Bacallao, Pierre C Dagher, Todd C Skaar, M Eileen Dolan
Colistin sulfate (polymixin E) is an antibiotic prescribed with increasing frequency for severe Gram-negative bacterial infections. As nephrotoxicity is a common side effect, the discovery of pharmacogenomic markers associated with toxicity would benefit the utility of this drug. Our objective was to identify genetic markers of colistin cytotoxicity that were also associated with expression of key proteins using an unbiased, whole genome approach and further evaluate the functional significance in renal cell lines...
March 18, 2017: International Journal of Molecular Sciences
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