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https://www.readbyqxmd.com/read/28227933/classification-of-severity-of-mitral-regurgitation-patients-using-multifractal-analysis
#1
Rijil Thomas, Ling Lieng Hsi, Soh Cheong Boon, Erry Gunawan, Rijil Thomas, Ling Lieng Hsi, Soh Cheong Boon, Erry Gunawan, Soh Cheong Boon, Erry Gunawan, Ling Lieng Hsi
Owing to its efficiency and cost effectiveness, auscultation using a stethoscope is the primary diagnosis method preferred by most medical examiners for cardiovascular disease. Phonocardiography (PCG) is the next level of auscultation and an effective analysis technique in cardiology. This paper presents a method to quantify Mitral Regurgitation (MR) using PCG. MR is one of the most common cardiovascular diseases associated with a defect in mitral valve. We analyzed the multifractal nature of heart sounds with murmur followed by classification and clustering using Hurst exponents...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225770/a-distal-intergenic-region-controls-pancreatic-endocrine-differentiation-by-acting-as-a-transcriptional-enhancer-and-as-a-polycomb-response-element
#2
Joris van Arensbergen, Sebastien Dussaud, Corinne Pardanaud-Glavieux, Javier García-Hurtado, Claire Sauty, Aline Guerci, Jorge Ferrer, Philippe Ravassard
Lineage-selective expression of developmental genes is dependent on the interplay between activating and repressive mechanisms. Gene activation is dependent on cell-specific transcription factors that recognize transcriptional enhancer sequences. Gene repression often depends on the recruitment of Polycomb group (PcG) proteins, although the sequences that underlie the recruitment of PcG proteins, also known as Polycomb response elements (PREs), remain poorly understood in vertebrates. While distal PREs have been identified in mammals, a role for positive-acting enhancers in PcG-mediated repression has not been described...
2017: PloS One
https://www.readbyqxmd.com/read/28202673/molecular-architecture-of-polycomb-repressive-complexes
#3
REVIEW
Emily C Chittock, Sebastian Latwiel, Thomas C R Miller, Christoph W Müller
The polycomb group (PcG) proteins are a large and diverse family that epigenetically repress the transcription of key developmental genes. They form three broad groups of polycomb repressive complexes (PRCs) known as PRC1, PRC2 and Polycomb Repressive DeUBiquitinase, each of which modifies and/or remodels chromatin by distinct mechanisms that are tuned by having variable compositions of core and accessory subunits. Until recently, relatively little was known about how the various PcG proteins assemble to form the PRCs; however, studies by several groups have now allowed us to start piecing together the PcG puzzle...
February 8, 2017: Biochemical Society Transactions
https://www.readbyqxmd.com/read/28196760/polycomb-group-systems-in-fungi-new-models-for-understanding-polycomb-repressive-complex-2
#4
REVIEW
Zachary A Lewis
Polycomb group (PcG) proteins form multiple complexes that direct assembly of transcriptionally repressed chromatin, an essential process for multicellular development. Recent studies in plants and animals have uncovered surprising complexity in the form of multiple, variant PcG complexes governed by an extensive regulatory network. PcG proteins are absent from major yeast models, but recent research revealed minimal PcG systems in several well-studied fungi. In both animals and fungi, PcG complexes are responsive to local chromatin structure, but important aspects of PcG regulation remain unknown...
February 11, 2017: Trends in Genetics: TIG
https://www.readbyqxmd.com/read/28177357/technical-note-avoiding-the-direct-inversion-of-the-numerator-relationship-matrix-for-genotyped-animals-in-single-step-genomic-best-linear-unbiased-prediction-solved-with-the-preconditioned-conjugate-gradient
#5
Y Masuda, I Misztal, A Legarra, S Tsuruta, D A L Lourenco, B O Fragomeni, I Aguilar
This paper evaluates an efficient implementation to multiply the inverse of a numerator relationship matrix for genotyped animals () by a vector (). The computation is required for solving mixed model equations in single-step genomic BLUP (ssGBLUP) with the preconditioned conjugate gradient (PCG). The inverse can be decomposed into sparse matrices that are blocks of the sparse inverse of a numerator relationship matrix () including genotyped animals and their ancestors. The elements of were rapidly calculated with the Henderson's rule and stored as sparse matrices in memory...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28168617/an-anatomical-study-of-pneumatized-crista-galli
#6
Ranko Mladina, Romano Antunović, Cemal Cingi, Nuray Bayar Muluk, Neven Skitarelić, Mislav Malić
The literature data on the incidence of pneumatization of the crista galli based on patients' computed tomography (CT) scans ranges from 3 to 37.5%. This study investigated for the first time the incidence of crista galli pneumatization based on CT scans of human skulls. The study examined 102 randomly selected human skulls (≥20 years of age; 76 males, 26 females). Skulls were scanned in a fixed position using cone beam computed tomography (CBCT) with a field of view of 145 × 130 mm and an isotropic voxel size of 0...
February 6, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/28157505/polycomb-repressive-complex-1-generates-discrete-compacted-domains-that-change-during-differentiation
#7
Sharmistha Kundu, Fei Ji, Hongjae Sunwoo, Gaurav Jain, Jeannie T Lee, Ruslan I Sadreyev, Job Dekker, Robert E Kingston
Master regulatory genes require stable silencing by the polycomb group (PcG) to prevent misexpression during differentiation and development. Some PcG proteins covalently modify histones, which contributes to heritable repression. The role for other effects on chromatin structure is less understood. We characterized the organization of PcG target genes in ESCs and neural progenitors using 5C and super-resolution microscopy. The genomic loci of repressed PcG targets formed discrete, small (20-140 Kb) domains of tight interaction that corresponded to locations bound by canonical polycomb repressive complex 1 (PRC1)...
February 2, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28155288/association-between-depression-in-carers-and-malnutrition-in-children-aged-6-months-to-5-years
#8
Keneilwe Motlhatlhedi, Vincent Setlhare, Adewale Ganiyu, Jacqueline Firth
BACKGROUND:  Childhood malnutrition is an important risk factor for child mortality and underlies close to 50% of child deaths worldwide. Previous studies have found an association between maternal depression and child malnutrition, but it is not known whether this association exists in Botswana. In addition, previous studies excluded non-maternal primary caregivers (PCGs). It is unclear whether the association between primary caregiver depression and child malnutrition remains when non-maternal PCGs are included...
January 30, 2017: African Journal of Primary Health Care & Family Medicine
https://www.readbyqxmd.com/read/28152521/lncsubpathway-a-novel-approach-for-identifying-dysfunctional-subpathways-associated-with-risk-lncrnas-by-integrating-lncrna-and-mrna-expression-profiles-and-pathway-topologies
#9
Yanjun Xu, Feng Li, Tan Wu, Yingqi Xu, Haixiu Yang, Qun Dong, Meiyu Zheng, Desi Shang, Chunlong Zhang, Yunpeng Zhang, Xia Li
Long non-coding RNAs (lncRNAs) play important roles in various biological processes, including the development of many diseases. Pathway analysis is a valuable aid for understanding the cellular functions of these transcripts. We have developed and characterized LncSubpathway, a novel method that integrates lncRNA and protein coding gene (PCG) expression with interactome data to identify disease risk subpathways that functionally associated with risk lncRNAs. LncSubpathway identifies the most relevance regions which are related with risk lncRNA set and implicated with study conditions through simultaneously considering the dysregulation extent of lncRNAs, PCGs and their correlations...
February 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28139064/corneal-profile-in-primary-congenital-glaucoma
#10
Azadeh Doozandeh, Shahin Yazdani, Shabnam Ansari, Mohammad Pakravan, Tahmineh Motevasseli, Bagher Hosseini, Mehdi Yasseri
PURPOSE: To investigate biomechanical and ultrastructural corneal parameters and ocular biometrics in the affected eyes of patients with unilateral primary congenital glaucoma (PCG) as compared to unaffected fellow eyes and age-matched healthy controls. METHODS: A total of 12 patients with treated unilateral PCG and 10 normal subjects were evaluated. LENSTAR was performed to determine biometric parameters; the ocular response analyser was employed to determine biomechanical properties and slit-scanning confocal microscopy was used for evaluation of corneal ultrastucture...
January 31, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28138215/fellow-eye-in-unilateral-primary-congenital-glaucoma
#11
Nader Hl Bayoumi
AIM: This is a report of the incidence of bilateral cases in a cohort of primary congenital glaucoma (PCG) cases and a study of the biometric characteristics of the fellow normal eyes in unilateral cases. MATERIALS AND METHODS: The charts of 134 PCG children were reviewed, of which 78 cases (58.2%) were found to have bilateral disease. The remaining 56 patients (41.8%) with unilateral disease had their fellow normal eyes compared with an age-matched cohort of ophthalmologically free children...
January 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/28137507/construction-and-evaluation-of-an-edwardsiella-tarda-dna-vaccine-encoding-outer-membrane-protein-c
#12
Fuguo Liu, Xiaoqian Tang, Xiuzhen Sheng, Jing Xing, Wenbin Zhan
Outer membrane protein C is a porin that resides in the outer membrane, and it has been identified as an antigenic protein in many bacteria, such as Escherichia coli, Salmonella typhi, Aeromonas hydrophila and Edwardsiella tarda. In the present work, we aimed at evaluating the immune protective potential of E. tarda OmpC as a DNA vaccine. For this purpose, a recombinant DNA plasmid encoding OmpC (pCG-OmpC) gene was constructed and its vaccine potential was analyzed in a flounder (Paralichthys olivaceus) model...
January 27, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28123534/expression-and-clinical-significance-of-pcg-associated-protein-rybp-in-hepatocellular-carcinoma
#13
Xiaonian Zhu, Meng Yan, Wei Luo, Wei Liu, Yuan Ren, Chunhua Bei, Guifang Tang, Ruiling Chen, Shengkui Tan
Ring1 and YY1 binding protein (RYBP), a member of the polycomb group proteins, has been implicated in transcription repression and tumor cell-specific apoptosis. Previously, RYBP has been reported as a putative tumor suppressor in cancer tissues by regulating mouse double minute 2 homolog-p53 signaling. However, the exact role and underlying mechanisms of RYBP in cancer remain to be fully elucidated. The present study investigated the expression profile of RYBP in hepatocellular carcinoma (HCC) and examined the association between the expression of RYBP and metastasis of HCC...
January 2017: Oncology Letters
https://www.readbyqxmd.com/read/28122538/upregulation-of-the-proto-oncogene-bmi-1-predicts-a-poor-prognosis-in-pediatric-acute-lymphoblastic-leukemia
#14
Hong-Xia Peng, Xiao-Dan Liu, Zi-Yan Luo, Xiao-Hong Zhang, Xue-Qun Luo, Xiao Chen, Hua Jiang, Ling Xu
BACKGROUND: Bmi-1, the B cell-specific moloney murine leukemia virus insertion site 1, is a member of the Polycomb-group (PcG) family and acts as an oncogene in various tumors; however, its expression related to the prognosis of pediatric patients with acute lymphoblastic leukemia (ALL) has not been well studied. METHODS: The Bmi-1 expression levels in the bone marrow of 104 pediatric ALL patients and 18 normal control subjects were determined by using qRT-PCR. The association between the Bmi-1 expression and the clinicopathological characteristics of pediatric ALL patients was analyzed, and the correlation between Bmi-1 and the prognosis of pediatric ALL was calculated according to the Kaplan-Meier method...
January 25, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28087428/polycomb-complexes-prc1-and-their-function-in-hematopoiesis
#15
REVIEW
Miguel Vidal, Katharzina Starowicz
Hematopoiesis, the process by which blood cells are continuously produced, is one of the best studied differentiation pathways. Hematological diseases are associated to reiterated mutations in genes encoding important gene expression regulators, including chromatin regulators. Among them, the Polycomb group (PcG) of proteins is an essential system of gene silencing involved in the maintenance of cell identities during differentiation. PcG proteins assemble into two major types of Polycomb repressive complexes (PRC) endowed with distinct histone tail modifying activities...
January 10, 2017: Experimental Hematology
https://www.readbyqxmd.com/read/28079155/dietary-phytochemical-peitc-restricts-tumor-development-via-modulation-of-epigenetic-writers-and-erasers
#16
Jung Eun Park, Yang Sun, Sai Kiang Lim, James P Tam, Matthijs Dekker, Hong Chen, Siu Kwan Sze
Dietary intake of bioactive phytochemicals including the cruciferous vegetable derivative phenethyl isothiocyanate (PEITC) can reduce risk of human cancers, but possible epigenetic mechanisms of these effects are yet unknown. We therefore sought to identify the molecular basis of PEITC-mediated epigenetic tumor restriction. Colon cancer cells treated with low-dose PEITC for >1 month exhibited stable alterations in expression profile of epigenetic writers/erasers and chromatin-binding of histone deacetylases (HDACs) and Polycomb-group (PcG) proteins...
January 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28063805/effect-of-prenatal-counseling-on-breastfeeding-rates-in-mothers-of%C3%A2-twins
#17
Fernanda Cristina Ferreira Mikami, Maria de Lourdes Brizot, Terezinha Hideco Tase, Elizabeth Saccuman, Rossana Pulcineli Vieira Francisco, Marcelo Zugaib
OBJECTIVE: To investigate the effect of antenatal breastfeeding counseling on the breastfeeding rates for women who give birth to twins. DESIGN: Prospective randomized trial. SETTING: Multiple Pregnancy Unit, Obstetrics Department, University of São Paulo, Brazil. PARTICIPANTS: A total of 171 mothers of twins and their 342 infants. METHODS: The participants were randomized into the prenatal counseling group (PCG) or control group (CG)...
January 5, 2017: Journal of Obstetric, Gynecologic, and Neonatal Nursing: JOGNN
https://www.readbyqxmd.com/read/28054262/does-photobiomodulation-therapy-is-better-than-cryotherapy-in-muscle-recovery-after-a-high-intensity-exercise-a-randomized-double-blind-placebo-controlled-clinical-trial
#18
Thiago De Marchi, Vinicius Mazzochi Schmitt, Guilherme Pinheiro Machado, Juliane Souza de Sene, Camila Dallavechia de Col, Olga Tairova, Mirian Salvador, Ernesto Cesar Pinto Leal-Junior
This study aimed to determine the effectiveness of photobiomodulation therapy (PBMT) and cryotherapy, in isolated and combined forms, as muscle recovery techniques after muscle fatigue-inducing protocol. Forty volunteers were randomly divided into five groups: a placebo group (PG); a PBMT group (PBMT); a cryotherapy group (CG); a cryotherapy-PBMT group (CPG); and a PBMT-cryotherapy group (PCG). All subjects performed four sessions at 24-h intervals, during which they submitted to isometric assessment (MVC) and blood collection in the pre-exercise period, and 5 and 60 min post-exercise, while the muscle fatigue induction protocol occurred after the pre-exercise collections...
February 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28052074/distinction-between-neural-and-vascular-bold-oscillations-and-intertwined-heart-rate-oscillations-at-0-1-hz-in-the-resting-state-and-during-movement
#19
Gert Pfurtscheller, Andreas Schwerdtfeger, Clemens Brunner, Christoph Aigner, David Fink, Joana Brito, Marciano P Carmo, Alexandre Andrade
In the resting state, blood oxygen level-dependent (BOLD) oscillations with a frequency of about 0.1 Hz are conspicuous. Whether their origin is neural or vascular is not yet fully understood. Furthermore, it is not clear whether these BOLD oscillations interact with slow oscillations in heart rate (HR). To address these two questions, we estimated phase-locking (PL) values between precentral gyrus (PCG) and insula in 25 scanner-naïve individuals during rest and stimulus-paced finger movements in both hemispheres...
2017: PloS One
https://www.readbyqxmd.com/read/28050510/plasma-cell-gingivits-a-conflict-of-diagnosis
#20
Jammula Surya Prasanna, Divya Aishwarya Mutyap, Veerandranath Reddy Pantula, Shilpa Akula, Bhargavi Chinthapalli
Plasma Cell Gingivitis (PCG) is a rare condition of the gingiva which is benign in nature. In this condition there is enlargement of the marginal and attached gingiva. It is not only unaesthetic in appearance but also causes difficulty in speech and mastication. Hence, it creates an area for plaque accumulation because of which there is difficulty in carrying out the routine oral hygiene procedures. The aetiology is unknown and is thought to be a hypersensitive reaction to an allergen. This condition is characterized by massive infiltration of the plasma cells into the sub-epithelial connective tissue layers...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
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