keyword
MENU ▼
Read by QxMD icon Read
search

Tes

keyword
https://www.readbyqxmd.com/read/28088028/role-of-small-rnas-in-epigenetic-reprogramming-during-plant-sexual-reproduction
#1
REVIEW
German Martinez, Claudia Köhler
Sexual reproduction, the formation of a new individual from specialized reproductive cells after fertilization, involves the precise orchestration of different developmental and genomic processes. These processes are to a large extent governed by small RNAs (sRNAs) that either belong to the class of micro RNAs (miRNAs) or small-interfering RNAs (siRNAs). The latter are derived from transposable elements (TEs) and involved in genome defense and transgenerational inheritance of heterochromatin identity, ensuring genome stability...
January 11, 2017: Current Opinion in Plant Biology
https://www.readbyqxmd.com/read/28077511/altered-connectivity-and-synapse-maturation-of-the-hippocampal-mossy-fiber-pathway-in-a-mouse-model-of-the-fragile-x-syndrome
#2
F Scharkowski, Michael Frotscher, David Lutz, Martin Korte, Kristin Michaelsen-Preusse
The Fragile X syndrome (FXS) as the most common monogenetic cause of cognitive impairment and autism indicates how tightly the dysregulation of synapse development is linked to cognitive deficits. Symptoms of FXS include excessive adherence to patterns that point to compromised hippocampal network formation. Surprisingly, one of the most complex hippocampal synapses connecting the dentate gyrus (DG) to CA3 pyramidal neurons has not been analyzed in FXS yet. Intriguingly, we found altered synaptic function between DG and CA3 in a mouse model of FXS (fmr1 knockout [KO]) demonstrated by increased mossy fiber-dependent miniature excitatory postsynaptic current (mEPSC) frequency at CA3 pyramidal neurons together with increased connectivity between granule cells and CA3 neurons...
January 10, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28074485/light-temperature-and-tocopherol-status-influence-foliar-vascular-anatomy-and-leaf-function-in-arabidopsis-thaliana
#3
Jared J Stewart, Stephanie K Polutchko, William W Adams, Christopher M Cohu, Coleman A Wenzl, Barbara Demmig-Adams
This study addressed whether the winter annual Arabidopsis thaliana can adjust foliar phloem and xylem anatomy both differentially and in parallel. In plants acclimated to hot versus cool temperature, foliar minor vein xylem-to-phloem ratio was greater, whereas xylem and phloem responded concomitantly to growth light intensity. Across all growth conditions, xylem anatomy correlated with transpiration rate, while phloem anatomy correlated with photosynthetic capacity for two plant lines (wildtype Col-0 and tocopherol-deficient vte1 mutant) irrespective of tocopherol status...
January 11, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28074220/biology-dynamics-and-applications-of-transposable-elements-in-basidiomycete-fungi
#4
REVIEW
Raúl Castanera, Alessandra Borgognone, Antonio G Pisabarro, Lucía Ramírez
The phylum Basidiomycota includes filamentous fungi and yeast species with different ecological and genomic characteristics. Transposable elements (TEs) are abundant components of most eukaryotic genomes, and their transition from being genomic parasites to key drivers of genomic architecture, functionality, and evolution is a subject receiving much attention. In light of the abundant genomic information released during the last decade, the aims of this mini-review are to discuss the dynamics and impact of TEs in basidiomycete fungi...
January 10, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28071692/diversity-distribution-and-significance-of-transposable-elements-in-the-genome-of-the-only-selfing-hermaphroditic-vertebrate-kryptolebias-marmoratus
#5
Jae-Sung Rhee, Beom-Soon Choi, Jaebum Kim, Bo-Mi Kim, Young-Mi Lee, Il-Chan Kim, Akira Kanamori, Ik-Young Choi, Manfred Schartl, Jae-Seong Lee
The Kryptolebias marmoratus is unique because it is the only self-fertilizing hermaphroditic vertebrate, known to date. It primarily reproduces by internal self-fertilization in a mixed ovary/testis gonad. Here, we report on a high-quality genome assembly for the K. marmoratus South Korea (SK) strain highlighting the diversity and distribution of transposable elements (TEs). We find that K. marmoratus genome maintains number and composition of TEs. This can be an important genomic attribute promoting genome recombination in this selfing fish, while, in addition to a mixed mating strategy, it may also represent a mechanism contributing to the evolutionary adaptation to ecological pressure of the species...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28070642/distinct-expression-profile-of-stem-cell-markers-lgr5-and-lgr6-in-basaloid-skin-tumors
#6
Bo Gun Jang, Cheol Lee, Hye Sung Kim, Myung Soo Shin, Min Seok Cheon, Jae Wang Kim, Woo Ho Kim
Mammalian epidermis, which is composed of hair follicles, sebaceous glands, and interfollicular epidermis, is maintained by discrete stem cells. In vivo lineage tracing demonstrated that murine LGR5 cells are mainly responsible for hair follicle regeneration whereas LGR6 cells generate sebaceous glands and interfollicular epidermis. However, little is known about their expression in the human skin tumors. In this study, we investigated the expression profile of LGR5 and LGR6 in a variety of human skin tumors including basaloid tumors with follicular differentiation (94 basal cell carcinomas, 18 trichoepitheliomas, 3 basaloid follicular hamartomas, and 12 pilomatricomas) and tumors with ductal differentiation (7 eccrine poromas, 8 hidradenomas, and 5 spiradenomas)...
January 9, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28069481/thoracic-endometriosis-syndrome-association-with-pelvic-endometriosis-and-fertility-status
#7
Jessica Ottolina, Francesca De Stefano, Paola Viganò, Paola Ciriaco, Piero Zannini, Massimo Candiani
STUDY OBJECTIVE: Thoracic endometriosis syndrome (TES), characterized mainly by catamenial pneumothorax, represents a relevant condition in patients affected by endometriosis. However, few studies have analyzed this condition under the gynecological point of view, in terms of characteristic of endometriosis and fertility status of affected women. In our study, we evaluate the association between catamenial pneumothorax, pelvic endometriosis and the fertility status of the patients. DESIGN: Retrospective study of 16 patients treated for catamenial pneumothorax between January 2001 and January 2014 at the Thoracic Surgery Department of San Raffaele Scientific Institute...
January 6, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28068923/domestication-of-rice-has-reduced-the-occurrence-of-transposable-elements-within-gene-coding-regions
#8
Xukai Li, Kai Guo, Xiaobo Zhu, Peng Chen, Ying Li, Guosheng Xie, Lingqiang Wang, Yanting Wang, Staffan Persson, Liangcai Peng
BACKGROUND: Transposable elements (TEs) are prominent features in many plant genomes, and patterns of TEs in closely related rice species are thus proposed as an ideal model to study TEs roles in the context of plant genome evolution. As TEs may contribute to improved rice growth and grain quality, it is of pivotal significance for worldwide food security and biomass production. RESULTS: We analyzed three cultivated rice species and their closest five wild relatives for distribution and content of TEs in their genomes...
January 9, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28062442/sine_scan-an-efficient-tool-to-discover-short-interspersed-nuclear-elements-sines-in-large-scale-genomic-datasets
#9
Hongliang Mao, Hao Wang
MOTIVATION: Short Interspersed Nuclear Elements (SINEs) are transposable elements (TEs) that amplify through a copy-and-paste mode via RNA intermediates. The computational identification of new SINEs are challenging because of their weak structural signals and rapid diversification in sequences. RESULTS: Here we report SINE_Scan, a highly efficient program to predict SINE elements in genomic DNA sequences. SINE_Scan integrates hallmark of SINE transposition, copy number and structural signals to identify a SINE element...
January 6, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28057730/insertion-polymorphisms-of-mobile-genetic-elements-in-sexual-and-asexual-populations-of-daphnia-pulex
#10
Xiaoqian Jiang, Haixu Tang, Zhiqiang Ye, Michael Lynch
Transposable elements (TEs) constitute a substantial portion of many eukaryotic genomes, and can in principle contribute to evolutionary innovation as well as genomic deterioration. Daphnia pulex serves as a useful model for studying TE dynamics as a potential cause and/or consequence of asexuality. We analyzed insertion polymorphisms of TEs in 20 sexual and 20 asexual isolates of D. pulex across North American from their available whole-genome sequencing data. Our results show that the total fraction of the derived sequences of TEs is not substantially different between asexual and sexual D...
January 4, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28055082/association-of-dsm-iv-posttraumatic-stress-disorder-with-traumatic-experience-type-and-history-in-the-world-health-organization-world-mental-health-surveys
#11
Howard Liu, Maria V Petukhova, Nancy A Sampson, Sergio Aguilar-Gaxiola, Jordi Alonso, Laura Helena Andrade, Evelyn J Bromet, Giovanni de Girolamo, Josep Maria Haro, Hristo Hinkov, Norito Kawakami, Karestan C Koenen, Viviane Kovess-Masfety, Sing Lee, Maria Elena Medina-Mora, Fernando Navarro-Mateu, Siobhan O'Neill, Marina Piazza, José Posada-Villa, Kate M Scott, Victoria Shahly, Dan J Stein, Margreet Ten Have, Yolanda Torres, Oye Gureje, Alan M Zaslavsky, Ronald C Kessler
Importance: Previous research has documented significant variation in the prevalence of posttraumatic stress disorder (PTSD) depending on the type of traumatic experience (TE) and history of TE exposure, but the relatively small sample sizes in these studies resulted in a number of unresolved basic questions. Objective: To examine disaggregated associations of type of TE history with PTSD in a large cross-national community epidemiologic data set. Design, Setting, and Participants: The World Health Organization World Mental Health surveys assessed 29 TE types (lifetime exposure, age at first exposure) with DSM-IV PTSD that was associated with 1 randomly selected TE exposure (the random TE) for each respondent...
January 4, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28050827/establishment-and-utilization-of-habituated-cell-suspension-cultures-for-hormone-inducible-xylogenesis
#12
Delphine Ménard, Henrik Serk, Raphaël Decou, Edouard Pesquet
The development of inducible cell differentiation in suspension cultures led to multiple breakthroughs. It enabled the understanding of the chronology, duration, regulation and interdependency of the multiple events leading to fully functional specialized cells. The most studied cell differentiation in plants using inducible suspension cultures is the formation of tracheary elements (TEs) - the hydro-mineral sap conducting cells. Several in vitro systems established in different plant species have been developed to trigger TE formation on-demand...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28049601/validation-of-left-atrial-volume-estimation-by-left-atrial-diameter-from-the-parasternal-long-axis-view
#13
Grazia Canciello, Giovanni de Simone, Raffaele Izzo, Alessandra Giamundo, Filomena Pacelli, Costantino Mancusi, Maurizio Galderisi, Bruno Trimarco, Maria-Angela Losi
BACKGROUND: Measurement of left atrial (LA) volume (LAV) is recommended for quantification of LA size. Only LA anteroposterior diameter (LAd) is available in a number of large cohorts, trials, or registries. The aim of this study was to evaluate whether LAV may be reasonably estimated from LAd. METHODS: One hundred forty consecutive patients referred to our outpatient clinics were prospectively enrolled to measure LAd from the long-axis view on two-dimensional echocardiography...
December 31, 2016: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28049393/recent-patents-on-nano-enhanced-materials-for-use-in-thermal-energy-storage-tes
#14
Luisa F Cabeza, Gerard Ferrer, Camila Barreneche, Aran Solé, José Enrique Juliá
Thermal energy storage (TES) systems using phase change materials (PCM) have been lately studied and are presented as one of the key solutions for the implementation of renewable energies. These systems take advantage of the latent heat of phase change of PCM during their melting/solidification processes to store or release heat depending on the needs and availability. Low thermal conductivity and latent heat are the main disadvantages of organic PCM, while corrosion, subcooling and thermal stability are the prime problems that inorganic PCM present...
October 27, 2016: Recent Patents on Nanotechnology
https://www.readbyqxmd.com/read/28047423/su-f-i-63-relaxation-times-of-lipid-resonances-in-nafld-animal-model-using-enhanced-curve-fitting
#15
K-H Song, C-H Yoo, S-I Lim, B-Y Choe
PURPOSE: The objective of this study is to evaluate the relaxation time of methylene resonance in comparison with other lipid resonances. METHODS: The examinations were performed on a 3.0T MRI scanner using a four-channel animal coil. Eight more Sprague-Dawley rats in the same baseline weight range were housed with ad libitum access to water and a high-fat (HF) diet (60% fat, 20% protein, and 20% carbohydrate). In order to avoid large blood vessels, a voxel (0.8×0...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046759/su-f-i-64-comparison-of-lipid-contents-using-steam-and-press-with-in-vivo-high-resolution-spectra-at-9-4-t
#16
K-H Song, S-I Lim, C-H Yoo, B-Y Choe
PURPOSE: The objective of this study is to compare lipid contents using localized point-resolved spectroscopy (PRESS) and stimulated echo acquisition mode (STEAM) sequences to assess lipid resonances in the liver, using in vivo high-resolution spectra at 9.4 T. METHODS: The examinations were performed on a Bruker 9.4T scanner using 4-channel animal coil for higher resolution. We used PRESS (repetition time [TR]/ TE = 3500/20 ms; number of signal averages [NSA] = 128; acquisition data points = 2048) and STEAM (TR/TM/TE = 3500/10/20 ms; NSA = 128; acquisition data points = 2048)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045957/normal-levels-of-sox9-expression-in-the-developing-mouse-testis-depend-on-the-tes-tesco-enhancer-but-this-does-not-act-alone
#17
Nitzan Gonen, Alexander Quinn, Helen C O'Neill, Peter Koopman, Robin Lovell-Badge
During mouse sex determination, transient expression of the Y-linked gene Sry up-regulates its direct target gene Sox9, via a 3.2 kb testis specific enhancer of Sox9 (TES), which includes a core 1.4 kb element, TESCO. SOX9 activity leads to differentiation of Sertoli cells, rather than granulosa cells from the bipotential supporting cell precursor lineage. Here, we present functional analysis of TES/TESCO, using CRISPR/Cas9 genome editing in mice. Deletion of TESCO or TES reduced Sox9 expression levels in XY fetal gonads to 60 or 45% respectively relative to wild type gonads, and reduced expression of the SOX9 target Amh...
January 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28045854/the-percentage-of-amplitude-decrease-warning-criteria-for-transcranial-mep-monitoring
#18
Henricus L Journée, Hanneke I Berends, Moyo C Kruyt
Muscle motor evoked potentials (MEPs) from transcranial electrical stimulation (TES) became a standard technique for monitoring the motor functions of the brain and spinal cord at risk during spinal and brain surgery. However, a wide range of criteria based on the percentage of amplitude decrease is used in practice. A survey of the current literature on clinical outcome parameters reveals a variety of percentages in a range of 30% to 100% (50% to 100% spinal procedures) with no consensus. The interpretation of muscle MEPs is hampered by their sensitivity to many interfering factors...
January 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28043366/semen-cryopreservation-and-radical-reduction-capacity-of-seminal-fluid-in-captive-african-lion-panthera-leo
#19
I Luther, U Jakop, I Lueders, A Tordiffe, C Franz, J Schiller, A Kotze, K Müller
Optimizing cryopreservation protocols for nondomestic felids contributes to the successful development of assisted reproduction techniques and genetic resource banking. In this study, we describe a simple cryopreservation procedure for African lion (Panthera leo) ejaculates, which was tested with different packaging options and different sperm numbers per dose. By applying urethral catheterization and electroejaculation, 17 ejaculates with greater than 20% motile and greater than 5% progressively motile sperm were collected...
February 2017: Theriogenology
https://www.readbyqxmd.com/read/28034838/advance-in-the-research-on-super-enhancer
#20
Sun Changbin, Zhang Xi
Super-enhancers (SEs) are large clusters of transcriptional enhancers that drive expression of genes controlling cell identity. They play important roles in development, disease initiation and progression such as tumorigenesis. Compared to typical enhancers (TEs), most key oncogenes in tumor cells are driven by SEs, and common diseases such as Alzheimer's disease related variations are enriched in SEs. SEs hold great promising in key oncogenes identification and diseases-associated variants discovery. In this review, we first summarize how to identify enhancers on a genome-wide scale, and then introduce the concept of SEs and the methodology for SEs identification...
December 20, 2016: Yi Chuan, Hereditas
keyword
keyword
113132
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"