keyword
MENU ▼
Read by QxMD icon Read
search

overlap

keyword
https://www.readbyqxmd.com/read/28931157/is-nocturnal-foraging-in-a-tropical-bee-an-escape-from-interference-competition
#1
Adam R Smith, Shannon M Kitchen, Ryan M Toney, Christian Ziegler
Temporal niche partitioning may result from interference competition if animals shift their activity patterns to avoid aggressive competitors. If doing so also shifts food sources, it is difficult to distinguish the effects of interference and consumptive competition in selecting for temporal niche shift. Bees compete for pollen and nectar from flowers through both interference and consumptive competition, and some species of bees have evolved nocturnality. Here, we use tropical forest canopy towers to observe bees (the night-flying sweat bees Megalopta genalis and M...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28931073/bacterial-and-diazotrophic-diversities-of-endophytes-in-dendrobium-catenatum-determined-through-barcoded-pyrosequencing
#2
Ou Li, Rong Xiao, Lihua Sun, Chenglin Guan, Dedong Kong, Xiufang Hu
As an epiphyte orchid, Dendrobium catenatum relies on microorganisms for requisite nutrients. Metagenome pyrosequencing based on 16S rRNA and nifH genes was used to characterize the bacterial and diazotrophic communities associated with D. catenatum collected from 5 districts in China. Based on Meta-16S rRNA sequencing, 22 bacterial phyla and 699 genera were identified, distributed as 125 genera from 8 phyla and 319 genera from 10 phyla shared by all the planting bases and all the tissues, respectively. The predominant Proteobacteria varied from 71...
2017: PloS One
https://www.readbyqxmd.com/read/28930574/food-addiction-a-common-neurobiological-mechanism-with-drug-abuse
#3
Elsa Lindgren, Kyle Gray, Gregg Miller, Ryan Tyler, Corinde E Wiers, Nora D Volkow, Gene-Jack Wang
Drugs and food both exert a rewarding effect through the firing of dopamine neurons in the ventral tegmental area, resulting in the release of dopamine into the nucleus accumbens and effects on the mesolimbic pathway. Here, we review the neuroimaging literature to consider the validity of food addiction and the common neurobiological mechanisms that overlap in food and drug addiction. This review paper focuses on findings from Positron Emission Tomography (PET), functional Magnetic Resonance Imaging (fMRI) and structural imaging studies, as well as evidence from neuroimaging studies of bariatric surgery and pharmacological interventions on obese individuals...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28929982/comorbidity-of-autoimmune-thyroid-disorders-and-psychiatric-disorders-during-the-postpartum-period-a-danish-nationwide-register-based-cohort-study
#4
V Bergink, V J M Pop, P R Nielsen, E Agerbo, T Munk-Olsen, X Liu
BACKGROUND: The postpartum period is well-known risk period for the first onset of autoimmune thyroid disorders (AITDs) as well as first onset of psychiatric disorders. These two disorders are some of the most prevalent medical conditions postpartum, often misdiagnosed and disabling if left untreated. Our study was designed to explore the possible bidirectional association between AITDs and psychiatric disorders during the postpartum period. METHODS: A population-based cohort study through linkage of Danish national registers, which comprised 312 779 women who gave birth to their first child during 1997-2010...
September 20, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28929787/-phenotypes-of-bronchial-asthma
#5
László Béla Nagy
It is increasingly recognized that the bronchial asthma is a heterogeneous entity, encompassing a variety of different phenotypes. The identification of specific phenotypes is the key to develop more effective personalised treatment. The earliest attempt to phenotype asthma was proposed classifying into extrinsic and intrinsic subtypes. Clinical asthma is mainly divided into allergic (atopic) and non-allergic (non-atopic) asthma. Other phenotypes are based on trigger factors. Later the phenotyping based on the predominant cellular nature of inflammation: It can be divided into eosinophilic and non-eosinohilic...
April 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28929728/-undocumented-immigrants-what-do-we-know-about-their-health
#6
Giovanni Baglio, Raffaele Di Palma, Erica Eugeni, Antonio Fortino
In Italy, immigrants represent a "fuzzy" set, to which it is difficult to apply dichotomous categories as a classification (i.e., regular/irregular, economic/forced, etcetera). These categories lose its meaning when used to study health phenomena. Rather, the epidemiological profile of such a heterogeneous population depends on the varying influence of health determinants in the life-course of migration. This article builds on those assumptions, and analyses the health of irregularly- staying immigrants by adopting a global approach to the migration phenomenon...
May 2017: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/28929496/a-methylome-wide-association-study-of-trajectories-of-oppositional-defiant-behaviors-and-biological-overlap-with-attention-deficit-hyperactivity-disorder
#7
Edward D Barker, Esther Walton, Charlotte A M Cecil, Richard Rowe, Sara R Jaffee, Barbara Maughan, Thomas G O'Connor, Argyris Stringaris, Alan J Meehan, Wendy McArdle, Caroline L Relton, Tom R Gaunt
In 671 mother-child (49% male) pairs from an epidemiological birth cohort, we investigated (a) prospective associations between DNA methylation (at birth) and trajectories (ages 7-13) of oppositional defiant disorder (ODD), and the ODD subdimensions of irritable and headstrong; (b) common biological pathways, indexed by DNA methylation, between ODD trajectories and attention deficit hyperactivity disorder (ADHD); (c) genetic influence on DNA methylation; and (d) prenatal risk exposure associations. Methylome-wide significant associations were identified for the ODD and headstrong, but not for irritable...
September 20, 2017: Child Development
https://www.readbyqxmd.com/read/28929285/genomic-disorders-in-psychiatry-what-does-the-clinician-need-to-know
#8
REVIEW
Chelsea Lowther, Gregory Costain, Danielle A Baribeau, Anne S Bassett
PURPOSE OF REVIEW: The purpose of this review is to summarize the role of genomic disorders in various psychiatric conditions and to highlight important recent advances in the field that are of potential clinical relevance. RECENT FINDINGS: Genomic disorders are caused by large rare recurrent deletions and duplications at certain chromosomal "hotspots" (e.g., 22q11.2, 16p11.2, 15q11-q13, 1q21.1, 15q13.3) across the genome. Most overlap multiple genes, affect development, and are associated with variable cognitive and other neuropsychiatric expression...
September 20, 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28929033/baastrup-s-disease-interspinal-bursitis-and-dorsal-epidural-cysts-radiologic-evaluation-and-impact-on-treatment-options
#9
REVIEW
Jesse Hatgis, Michelle Granville, Robert E Jacobson
Baastrup's disease or "kissing spines syndrome" was first described as a cause of lumbar pain before computerized tomography (CT) and magnetic resonance imaging (MRI) scanning existed. The diagnosis was based on x-ray studies, which showed that the spinous processes, especially in the lower lumbar spine, became approximated to each other and this was a generator of positional back pain. Biomechanically, the interspinous and supraspinous ligaments that are degenerated in Baastrup's disease normally contribute significantly to sagittal alignment...
July 9, 2017: Curēus
https://www.readbyqxmd.com/read/28928939/towards-a-systematic-assessment-of-assay-interference-identification-of-extensively-tested-compounds-with-high-assay-promiscuity
#10
Erik Gilberg, Dagmar Stumpfe, Jürgen Bajorath
A large-scale statistical analysis of hit rates of extensively assayed compounds is presented to provide a basis for a further assessment of assay interference potential and multi-target activities. A special feature of this investigation has been the inclusion of compound series information in activity analysis and the characterization of analog series using different parameters derived from assay statistics. No prior knowledge of compounds or targets was taken into consideration in the data-driven study of analog series...
2017: F1000Research
https://www.readbyqxmd.com/read/28928808/identification-of-novel-methylated-targets-in-colorectal-cancer-by-microarray-analysis-and-construction-of-co-expression-network
#11
Dongsheng Li, Jialin Guo, Song Wang, Liangchen Zhu, Zugang Shen
The present study was conducted to investigate novel methylated targets in colorectal cancer (CRC). The mRNA expression profiles of GSE32323 in 17 cancer and non-cancerous tissues from CRC patients, as well as expression profiles of 5 CRC cell lines prior and subsequent to 5-aza-2'-deoxycytidine (5-aza-dC) treatment, were obtained from the Gene Expression Omnibus database. The differentially expressed genes (DEGs) in 5 CRC cell lines prior and subsequent to 5-aza-dC treatment were combined with the CRC-specific gene expression profiling array data...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28928796/segmentation-of-left-and-right-ventricles-in-cardiac-mri-using-active-contours
#12
Shafiullah Soomro, Farhan Akram, Asad Munir, Chang Ha Lee, Kwang Nam Choi
Segmentation of left and right ventricles plays a crucial role in quantitatively analyzing the global and regional information in the cardiac magnetic resonance imaging (MRI). In MRI, the intensity inhomogeneity and weak or blurred object boundaries are the problems, which makes it difficult for the intensity-based segmentation methods to properly delineate the regions of interests (ROI). In this paper, a hybrid signed pressure force function (SPF) is proposed, which yields both local and global image fitted differences in an additive fashion...
2017: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/28928767/genome-wide-epigenetic-characterization-of-tissues-from-three-germ-layers-isolated-from-sheep-fetuses
#13
Emanuele Capra, Paola Toschi, Marcello Del Corvo, Barbara Lazzari, Pier A Scapolo, Pasqualino Loi, John L Williams, Alessandra Stella, Paolo Ajmone-Marsan
DNA methylation of regulatory and growth-related genes contributes to fetal programming which is important for maintaining the correct development of three germ layers of the embryo that develope into different tissues and organs, and which persists into adult life. In this study, a preliminary epigenetic screen was performed to define genomic regions that are involved in fetal epigenome remodeling. Embryonic ectodermic tissues (origin of nervous tissue), mesenchymal tissues (origin of connective and muscular tissues), and foregut endoderm tissues (origin of epithelial tissue), from day 28 sheep fetuses were collected and the distribution of methylated CpGs was analyzed using whole-genome bisulfite sequencing...
2017: Frontiers in Genetics
https://www.readbyqxmd.com/read/28928472/a-high-conductance-chemo-optogenetic-system-based-on-the-vertebrate-channel-trpa1b
#14
Pui-Ying Lam, Suresh K Mendu, Robert W Mills, Baohui Zheng, Hugo Padilla, David J Milan, Bimal N Desai, Randall T Peterson
Optogenetics is a powerful research approach that allows localized optical modulation of selected cells within an animal via the expression of genetically encoded photo-excitable ion channels. Commonly used optogenetic techniques rely on the expression of microbial opsin variants, which have many excellent features but suffer from various degrees of blue spectral overlap and limited channel conductance. Here, we expand the optogenetics toolbox in the form of a tunable, high-conductance vertebrate cation channel, zTrpa1b, coupled with photo-activated channel ligands, such as optovin and 4g6...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28928372/aln-gan-digital-alloy-for-mid-and-deep-ultraviolet-optoelectronics
#15
Wei Sun, Chee-Keong Tan, Nelson Tansu
The AlN/GaN digital alloy (DA) is a superlattice-like nanostructure formed by stacking ultra-thin ( ≤ 4 monolayers) AlN barriers and GaN wells periodically. Here we performed a comprehensive study on the electronics and optoelectronics properties of the AlN/GaN DA for mid- and deep-ultraviolet (UV) applications. Our numerical analysis indicates significant miniband engineering in the AlN/GaN DA by tuning the thicknesses of AlN barriers and GaN wells, so that the effective energy gap can be engineered from ~3...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28928365/multiple-genome-constellations-of-similar-and-distinct-influenza-a-viruses-co-circulate-in-pigs-during-epidemic-events
#16
Andres Diaz, Douglas Marthaler, Cesar Corzo, Claudia Muñoz-Zanzi, Srinand Sreevatsan, Marie Culhane, Montserrat Torremorell
Swine play a key role in the ecology and transmission of influenza A viruses (IAVs) between species. However, the epidemiology and diversity of swine IAVs is not completely understood. In this cohort study, we sampled on a weekly basis 132 3-week old pigs for 15 weeks. We found two overlapping epidemic events of infection in which most pigs (98.4%) tested PCR positive for IAVs. The prevalence rate of infection ranged between 0 and 86% per week and the incidence density ranged between 0 and 71 cases per 100 pigs-week...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28928284/functional-and-evolutionary-insights-from-the-ciona-notochord-transcriptome
#17
Wendy M Reeves, Yuye Wu, Matthew J Harder, Michael T Veeman
The notochord of the ascidian Ciona consists of only 40 cells, and is a longstanding model for studying organogenesis in a small, simple embryo. Here, we perform RNAseq on flow-sorted notochord cells from multiple stages to define a comprehensive Ciona notochord transcriptome. We identify 1364 genes with enriched expression and extensively validate the results by in situ hybridization. These genes are highly enriched for Gene Ontology terms related to the extracellular matrix, cell adhesion and cytoskeleton...
September 15, 2017: Development
https://www.readbyqxmd.com/read/28928151/comparative-analysis-reveals-genomic-features-of-stress-induced-transcriptional-readthrough
#18
Anna Vilborg, Niv Sabath, Yuval Wiesel, Jenny Nathans, Flonia Levy-Adam, Therese A Yario, Joan A Steitz, Reut Shalgi
Transcription is a highly regulated process, and stress-induced changes in gene transcription have been shown to play a major role in stress responses and adaptation. Genome-wide studies reveal prevalent transcription beyond known protein-coding gene loci, generating a variety of RNA classes, most of unknown function. One such class, termed downstream of gene-containing transcripts (DoGs), was reported to result from transcriptional readthrough upon osmotic stress in human cells. However, how widespread the readthrough phenomenon is, and what its causes and consequences are, remain elusive...
September 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28928148/genome-wide-engineering-of-an-infectious-clone-of-herpes-simplex-virus-type-1-using-synthetic-genomics-assembly-methods
#19
Lauren M Oldfield, Peter Grzesik, Alexander A Voorhies, Nina Alperovich, Derek MacMath, Claudia D Najera, Diya Sabrina Chandra, Sanjana Prasad, Vladimir N Noskov, Michael G Montague, Robert M Friedman, Prashant J Desai, Sanjay Vashee
Here, we present a transformational approach to genome engineering of herpes simplex virus type 1 (HSV-1), which has a large DNA genome, using synthetic genomics tools. We believe this method will enable more rapid and complex modifications of HSV-1 and other large DNA viruses than previous technologies, facilitating many useful applications. Yeast transformation-associated recombination was used to clone 11 fragments comprising the HSV-1 strain KOS 152 kb genome. Using overlapping sequences between the adjacent pieces, we assembled the fragments into a complete virus genome in yeast, transferred it into an Escherichia coli host, and reconstituted infectious virus following transfection into mammalian cells...
September 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28927998/the-neurology-literature-2016
#20
REVIEW
Danya Khoujah, Wan-Tsu W Chang, Michael K Abraham
Emergency neurology is a complex and rapidly changing field. Its evolution can be attributed in part to increased imaging options, debates about optimal treatment, and simply the growth of emergency medicine as a specialty. Every year, a number of articles published in emergency medicine or other specialty journals should become familiar to the emergency physician. This review summarizes neurology articles published in 2016, which the authors consider crucial to the practice of emergency medicine. The articles are categorized according to disease process, with the understanding that there can be significant overlap among articles...
September 6, 2017: American Journal of Emergency Medicine
keyword
keyword
104656
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"