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https://www.readbyqxmd.com/read/27906131/the-mir-125-family-is-an-important-regulator-of-the-expression-and-maintenance-of-maternal-effect-genes-during-preimplantational-embryo-development
#1
Kyeoung-Hwa Kim, You-Mi Seo, Eun-Young Kim, Su-Yeon Lee, Jini Kwon, Jung-Jae Ko, Kyung-Ah Lee
Previously, we reported that Sebox is a new maternal effect gene (MEG) that is required for early embryo development beyond the two-cell (2C) stage because this gene orchestrates the expression of important genes for zygotic genome activation (ZGA). However, regulators of Sebox expression remain unknown. Therefore, the objectives of the present study were to use bioinformatics tools to identify such regulatory microRNAs (miRNAs) and to determine the effects of the identified miRNAs on Sebox expression. Using computational algorithms, we identified a motif within the 3'UTR of Sebox mRNA that is specific to the seed region of the miR-125 family, which includes miR-125a-5p, miR-125b-5p and miR-351-5p...
November 2016: Open Biology
https://www.readbyqxmd.com/read/27906099/p311-induces-the-transdifferentiation-of-epidermal-stem-cells-to-myofibroblast-like-cells-by-stimulating-transforming-growth-factor-%C3%AE-1-expression
#2
Haisheng Li, Zhihui Yao, Weifeng He, Hongyan Gao, Yang Bai, Sisi Yang, Lu Zhang, Rixing Zhan, Jianglin Tan, Junyi Zhou, Masao Takata, Jun Wu, Gaoxing Luo
BACKGROUND: Epithelial to mesenchymal transition, especially to myofibroblasts, plays an important role in wound healing, fibrosis, and carcinogenesis. Epidermal stem cells (EpSCs) are responsible for epidermal renewal and wound re-epithelialization. However, it remains unclear whether and how EpSCs transdifferentiate into myofibroblasts or myofibroblast-like cells (MFLCs). Here, we provide the first evidence showing that P311 induces EpSC to MFLC transdifferentiation (EpMyT) via TGFβ1/Smad signaling...
December 1, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27906046/chromatin-landscapes-and-genetic-risk-in-systemic-lupus
#3
Joyce S Hui-Yuen, Lisha Zhu, Lai Ping Wong, Kaiyu Jiang, Yanmin Chen, Tao Liu, James N Jarvis
BACKGROUND: Systemic lupus erythematosus (SLE) is a multi-system, complex disease in which the environment interacts with inherited genes to produce broad phenotypes with inter-individual variability. Of 46 single nucleotide polymorphisms (SNPs) shown to confer genetic risk for SLE in recent genome-wide association studies, 30 lie within noncoding regions of the human genome. We therefore sought to identify and describe the functional elements (aside from genes) located within these regions of interest...
December 1, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27904211/post-operative-pain-management-in-shoulder-surgery-suprascapular-and-axillary-nerve-block-by-arthroscope-assisted-catheter-placement
#4
H Çağdaş Basat, D Hakan Uçar, Mehmet Armangil, Berk Güçlü, Mehmet Demirtaş
BACKGROUND: Postoperative pain management is the part of shoulder surgery to improve patient satisfaction, start rehabilitation process rapidly and decrease for hospital stay. Various treatment modalities have been used for pain management, but they have some limitations, side effects and risks. Throughout intraoperative and postoperative period, nerve blocks have been used more popularly than others because of efficacy. For the regional nerve block, local anesthetic should be infiltrated close to the nerve for maximum effect...
November 2016: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/27903803/the-human-cytomegalovirus-ie1-protein-antagonizes-pml-nuclear-body-mediated-intrinsic-immunity-via-the-inhibition-of-pml-de-novo-sumoylation
#5
Eva-Maria Schilling, Myriam Scherer, Nina Reuter, Johannes Schweininger, Yves A Muller, Thomas Stamminger
: PML nuclear bodies (NBs) are accumulations of cellular proteins embedded in a scaffold-like structure built by SUMO-modified PML/TRIM19. PML and other NB proteins act as cellular restriction factors against human cytomegalovirus (HCMV), however, this intrinsic defense is counteracted by the immediate-early protein 1 (IE1) of HCMV. IE1 directly interacts with the PML coiled-coil domain via its globular core region and disrupts NB foci by inducing a loss of PML SUMOylation. Here, we demonstrate that IE1 acts via abrogating the de novo SUMOylation of PML...
November 30, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27903361/-evaluation-of-health-effect-among-occupational-population-exposed-to-nano-titanium-dioxide-a-cross-sectional-study
#6
H D Xu, J W Zhou, S C Tang, F L Kong, X W Li, Z L Shen, L Yan, Z J Chen, L Zhao, G Jia, J Zhang
Objective: To characterize the health effects of nano-titanium dioxide exposure in an occupational cohort. Methods: Eighty-five male employees of a nano-titanium dioxide manufacturing enterprise in Shandong Province were evaluated in September 2014. Forty-four were exposed to nano-titanium dioxide (exposure group), and 41 were not exposed to nano-titanium dioxide (control group). We collected employees' basic information, smoking and drinking history, previous medical history, family history, and occupational history...
November 6, 2016: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/27902763/temperature-shift-alters-dna-methylation-and-histone-modification-patterns-in-gonadal-aromatase-cyp19a1-gene-in-species-with-temperature-dependent-sex-determination
#7
Yuiko Matsumoto, Brette Hannigan, David Crews
The environment surrounding the embryos has a profound impact on the developmental process and phenotypic outcomes of the organism. In species with temperature-dependent sex determination, gonadal sex is determined by the incubation temperature of the eggs. A mechanistic link between temperature and transcriptional regulation of developmental genes, however, remains elusive. In this study, we examine the changes in DNA methylation and histone modification patterns of the aromatase (cyp19a1) gene in embryonic gonads of red-eared slider turtles (Trachemys scripta) subjected to a temperature shift during development...
2016: PloS One
https://www.readbyqxmd.com/read/27902359/determinants-of-the-vp1-2a-junction-cleavage-by-the-3c-protease-in-foot-and-mouth-disease-virus-infected-cells
#8
Thea Kristensen, Preben Normann, Maria Gullberg, Ulrik Fahnøe, Charlotta Polacek, Thomas Bruun Rasmussen, Graham J Belsham
The foot-and-mouth disease virus (FMDV) capsid precursor, P1-2A, is cleaved by FMDV 3C protease to yield VP0, VP3, VP1 and 2A. Cleavage of the VP1/2A junction is the slowest. Serotype O FMDVs with uncleaved VP1-2A (having a K210E substitution in VP1; at position P2 in cleavage site) have been described previously and acquired a second site substitution (VP1 E83K) during virus rescue. Furthermore, introduction of the VP1 E83K substitution alone generated a second site change at the VP1/2A junction (2A L2P, position P2' in cleavage site)...
November 18, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27902336/characterization-of-the-banana-streak-virus-capsid-protein-and-mapping-of-the-immunodominant-continuous-b-cell-epitopes-to-the-surface-exposed-n-terminus
#9
Jenny Vo, Paul Campbell, Nur N Mahfuzc, Ras Ramli, Daniel Pagendam, Ross Barnard, Andrew Geering
This study identified the structural proteins of two badnavirus species, Banana streak MY virus (BSMYV) and Banana streak OL virus (BSOLV), and mapped the distribution of continuous B-cell epitopes. Two different CP isoforms of about 44 and 40 kDa (CP1 and CP2) and the virion-associated protein (VAP) were consistently associated with purified virions. For both viral species, the N-terminus of CP2 was successfully sequenced by Edman degradation but that of CP1 was chemically blocked. De novo peptide sequencing of tryptic digests suggested that CP1 and CP2 derive from the same region of the P3 polyprotein but differ in the length of either the N- or C-terminus...
October 24, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27901114/genome-wide-diversity-and-association-mapping-for-capsaicinoids-and-fruit-weight-in-capsicum-annuum-l
#10
Padma Nimmakayala, Venkata L Abburi, Thangasamy Saminathan, Suresh B Alaparthi, Aldo Almeida, Brittany Davenport, Marjan Nadimi, Joshua Davidson, Krittika Tonapi, Lav Yadav, Sridhar Malkaram, Gopinath Vajja, Gerald Hankins, Robert Harris, Minkyu Park, Doil Choi, John Stommel, Umesh K Reddy
Accumulated capsaicinoid content and increased fruit size are traits resulting from Capsicum annuum domestication. In this study, we used a diverse collection of C. annuum to generate 66,960 SNPs using genotyping by sequencing. The study identified 1189 haplotypes containing 3413 SNPs. Length of individual linkage disequilibrium (LD) blocks varied along chromosomes, with regions of high and low LD interspersed with an average LD of 139 kb. Principal component analysis (PCA), Bayesian model based population structure analysis and an Euclidean tree built based on identity by state (IBS) indices revealed that the clustering pattern of diverse accessions are in agreement with capsaicin content (CA) and fruit weight (FW) classifications indicating the importance of these traits in shaping modern pepper genome...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27901018/the-signaling-axis-of-microrna-31-interleukin-25-regulates-th1-th17-mediated-inflammation-response-in-colitis
#11
T Shi, Y Xie, Y Fu, Q Zhou, Z Ma, J Ma, Z Huang, J Zhang, J Chen
Interleukin-25 (IL-25) is an important regulatory cytokine that has a key role on mucosal immune tolerance during inflammation response. However, the molecular mechanism that regulates the colonic IL-25 expression in Crohn's disease (CD) remains unclear. In this study, IL-25 level was proved to decrease in 2,4,6-trinitrobenzene sulfonic acid (TNBS)-induced colitis mice and IL-10 knockout (KO) spontaneous colitis mice. An inverse correlation between IL-25 and miR-31 was discovered in the colons from model mice and CD patients...
November 30, 2016: Mucosal Immunology
https://www.readbyqxmd.com/read/27899593/the-kdm5-family-is-required-for-activation-of-pro-proliferative-cell-cycle-genes-during-adipocyte-differentiation
#12
Ann-Sofie B Brier, Anne Loft, Jesper G S Madsen, Thomas Rosengren, Ronni Nielsen, Søren F Schmidt, Zongzhi Liu, Qin Yan, Hinrich Gronemeyer, Susanne Mandrup
The KDM5 family of histone demethylases removes the H3K4 tri-methylation (H3K4me3) mark frequently found at promoter regions of actively transcribed genes and is therefore generally considered to contribute to corepression. In this study, we show that knockdown (KD) of all expressed members of the KDM5 family in white and brown preadipocytes leads to deregulated gene expression and blocks differentiation to mature adipocytes. KDM5 KD leads to a considerable increase in H3K4me3 at promoter regions; however, these changes in H3K4me3 have a limited effect on gene expression per se...
November 29, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27899108/geographic-variation-of-parathyroidectomy-in-patients-receiving-hemodialysis-a-retrospective-cohort-analysis
#13
James B Wetmore, Jiannong Liu, Paul J Dluzniewski, Areef Ishani, Geoffrey A Block, Allan J Collins
BACKGROUND: Secondary hyperparathyroidism (SHPT) is associated with adverse outcomes in patients receiving maintenance dialysis. Parathyroidectomy is a treatment for SHPT; whether parathyroidectomy utilization varies geographically in the US is unknown. METHODS: A retrospective cohort analysis was undertaken to identify all patients aged 18 years or older who were receiving in-center hemodialysis between 2007 and 2009, were covered by Medicare Parts A and B, and had been receiving hemodialysis for at least 1 year...
November 29, 2016: BMC Surgery
https://www.readbyqxmd.com/read/27897312/the-feasibility-of-micro-ultrasound-as-a-tool-to-image-peripheral-nerves
#14
A Chandra, R Eisma, P Felts, S Munirama, G A Corner, C E M Demore, G McLeod
Despite widespread use of ultrasound imaging to guide needle placement, the incidence of transient and permanent nerve damage as a complication of regional anaesthesia has not changed over the last decade. In view of the controversy surrounding intraneural injection there is a need to understand the structural changes caused by subepineural and subperineural needle penetration. Clinical ultrasound machines do not provide adequate anatomical resolution, and anaesthetists have difficulty judging the precise location of the needle tip relative to the epineurium...
November 29, 2016: Anaesthesia
https://www.readbyqxmd.com/read/27896836/radiosynthesis-and-biological-evaluation-of-the-new-pde10a-radioligand-18-f-aq28a
#15
Sally Wagner, Rodrigo Teodoro, Winnie Deuther-Conrad, Mathias Kranz, Matthias Scheunemann, Steffen Fischer, Barbara Wenzel, Ute Egerland, Norbert Hoefgen, Jörg Steinbach, Peter Brust
Cyclic nucleotide phosphodiesterase 10A (PDE10A) regulates the level of the second messengers cAMP and cGMP in particular in brain regions assumed to be associated with neurodegenerative and psychiatric diseases. A better understanding of the pathophysiological role of the expression of PDE10A could be obtained by quantitative imaging of the enzyme by positron emission tomography (PET). Thus, in this study we developed, radiolabeled, and evaluated a new PDE10A radioligand, 8-bromo-1-(6-[(18) F]fluoropyridin-3-yl)-3,4-dimethylimidazo[1,5-a]quinoxaline ([(18) F]AQ28A)...
November 29, 2016: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/27896314/graph-theoretic-and-motif-analyses-of-the-hippocampal-neuron-type-potential-connectome
#16
Christopher L Rees, Diek W Wheeler, David J Hamilton, Charise M White, Alexander O Komendantov, Giorgio A Ascoli
We computed the potential connectivity map of all known neuron types in the rodent hippocampal formation by supplementing scantly available synaptic data with spatial distributions of axons and dendrites from the open-access knowledge base Hippocampome.org. The network that results from this endeavor, the broadest and most complete for a mammalian cortical region at the neuron-type level to date, contains more than 3200 connections among 122 neuron types across six subregions. Analyses of these data using graph theory metrics unveil the fundamental architectural principles of the hippocampal circuit...
November 2016: ENeuro
https://www.readbyqxmd.com/read/27895733/improved-laparoscopic-nephron-sparing-surgery-for-renal-cell-carcinoma-based-on-the-precise-anatomy-of-the-nephron
#17
Gang Guo, Wei Cai, Xu Zhang
The aim of the present study was to investigate a method of laparoscopic nephron-sparing surgery (LNSS) for renal cell carcinoma (RCC) based on the precise anatomy of the nephron, and to decrease the incidence of hemorrhage and urinary leakage. Between January 2012 and December 2013, 31 patients who presented to the General Hospital of the People's Liberation Army (Beijing, China) were treated for RCC. The mean tumor size was 3.4±0.7 cm in diameter (range, 1.2-6.0 cm). During surgery, the renal artery was blocked, and subsequently, an incision in the renal capsule and renal cortex was performed, at 3-5 mm from the tumor edge...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27894679/use-of-the-lymphocyte-cytokinesis-block-micronucleus-assay-in-occupational-biomonitoring-of-genome-damage-caused-by-in-vivo-exposure-to-chemical-genotoxins-past-present-and-future
#18
REVIEW
Armen Nersesyan, Michael Fenech, Claudia Bolognesi, Miroslav Mišík, Tahereh Setayesh, Georg Wultsch, Stefano Bonassi, Philip Thomas, Siegfried Knasmüller
This article concerns the use of the lymphocyte cytokinesis-block micronucleus (CBMN) assay in biomonitoring of occupational and environmental exposures to genotoxic agents. Furthermore, we evaluated the use of this method in different exposure scenarios, in comparison to other DNA damage biomarkers and its regional distribution. So far ca. 400 studies have been published and the number increased substantially in the last years. The most frequently investigated groups are hospital personnel, followed by workers in the chemical industry and agricultural workers...
October 2016: Mutation Research
https://www.readbyqxmd.com/read/27893992/prediction-of-myocardial-infarction-by-assessing-regional-cardiac-wall-in-cmr-images-through-active-mesh-modeling
#19
Hossein Yousefi-Banaem, Saeed Kermani, Sasan Asiaei, Hamid Sanei
Myocardial infarction is a leading cause of morbidity and mortality. In this study, using Cine MRI images, the infarct region was precisely determined by examining the local migration path length of critical points on myocardium borders and the fractional thickening effects. First, MRI Cine images of Epi/Endocardium were processed in 3D for all slices, and then incorporated in all frames to build a dynamic model. Epi/Endocardium images were segmented using Heiberg algorithm, and then by a robust restricted block matching algorithm, the sparse points were tracked...
November 14, 2016: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/27893758/multiple-browsers-structure-tree-recruitment-in-logged-temperate-forests
#20
Edward K Faison, Stephen DeStefano, David R Foster, Joshua M Rapp, Justin A Compton
Historical extirpations have resulted in depauperate large herbivore assemblages in many northern forests. In eastern North America, most forests are inhabited by a single wild ungulate species, white-tailed deer (Odocoileus virginianus), and relationships between deer densities and impacts on forest regeneration are correspondingly well documented. Recent recolonizations by moose (Alces americanus) in northeastern regions complicate established deer density thresholds and predictions of browsing impacts on forest dynamics because size and foraging differences between the two animals suggest a lack of functional redundancy...
2016: PloS One
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