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https://www.readbyqxmd.com/read/28449470/impact-of-cyclooxygenase-2-and-prostaglandin-e2-expression-on-clinical-outcome-after-pulmonary-metastasectomy
#1
Christian Lang, Emilie Hrdliczka, Thomas Schweiger, Olaf Glueck, Gerrit Lewik, Stefan Schwarz, Alberto Benazzo, György Lang, Walter Klepetko, Konrad Hoetzenecker
BACKGROUND: Pulmonary metastasectomy (PM) is a standard procedure in the treatment of stage IV colorectal cancer (CRC). In most centers the indication for PM is solely based on clinical factors without taking the tumor biology into account. This results in diverse outcomes ranging from long-term remission to early recurrence. Inflammation is considered a hallmark of cancer development and progression. On the other hand the accessibility of CRC cells to the immune system reflects the grade of tumor aggressiveness...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449413/sporadic-versus-syndromic-keratocysts-can-we-predict-treatment-outcome-a-review-of-102-cysts
#2
Dani Noy, Adi Rachmiel, Keidar Zar, Omri Emodi, Rafael M Nagler
OBJECTIVES: Keratocystic odontogenic tumor (KCOT) demonstrates variable growth mechanisms and biologic behavior, partly due to origin and histology. We looked for the most contributing factors in predicting outcome of treatment. SUBJECTS AND METHODS: We retrospectively reviewed 118 medical files of patients diagnosed with KCOT (by tissue biopsy before surgical treatment) with/without nevoid basal cell carcinoma syndrome (NBCCS) from 1995 to 2015. Data were recorded and analyzed statistically to determine the treatment-outcome correlation...
April 27, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28449360/biologic-variability-of-cardiac-troponin-i-in-healthy-dogs-and-dogs-with-different-stages-of-myxomatous-mitral-valve-disease-using-standard-and-high-sensitivity-immunoassays
#3
Randolph L Winter, Ashley B Saunders, Sonya G Gordon, Matthew W Miller, Geoffrey T Fosgate, Jan S Suchodolski, Jörg M Steiner
BACKGROUND: Biologic variability (BV) is one aspect of interpreting changes in biomarker concentrations known to be clinically important in people with cardiac disease, but it has not been adequately addressed in dogs so far. OBJECTIVES: The purpose of the study was to determine BV of cardiac troponin I (cTnI) in healthy dogs and dogs with 3 stages of myxomatous mitral valve disease (MMVD). METHODS: Healthy dogs and dogs with 3 stages of MMVD were prospectively assigned to groups based on comprehensive clinical evaluation using current guidelines...
April 27, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28449248/betanodavirus-dissection-of-the-viral-life-cycle
#4
REVIEW
C-F Low, B Syarul Nataqain, H-Y Chee, M Z H Rozaini, M Najiah
Progressive research has been recently made in dissecting the molecular biology of Betanodavirus life cycle, the causative pathogen of viral encephalopathy and retinopathy in economic important marine fish species. Establishment of betanodavirus infectious clone allows the manipulation of virus genome for functional genomic study, which elucidates the biological event of the viral life cycle at molecular level. The betanodavirus strategizes its replication by expressing anti-apoptosis/antinecrotic proteins to maintain the cell viability during early infection...
April 27, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28449246/review-article-hepatitis-e-a-concise-review-of-virology-epidemiology-clinical-presentation-and-therapy
#5
REVIEW
M C Donnelly, L Scobie, C L Crossan, H Dalton, P C Hayes, K J Simpson
BACKGROUND: Hepatitis E virus (HEV) is a leading cause of acute icteric hepatitis and acute liver failure in the developing world. During the last decade, there has been increasing recognition of autochthonous (locally acquired) HEV infection in developed countries. Chronic HEV infection is now recognised, and in transplant recipients this may lead to cirrhosis and organ failure. AIM: To detail current understanding of the molecular biology of HEV, diagnostic and therapeutic strategies and propose future directions for basic science and clinical research...
April 27, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28449241/autophagy-compensates-impaired-energy-metabolism-in-clpxp-deficient-podospora-anserina-strains-and-extends-healthspan
#6
Laura Knuppertz, Heinz D Osiewacz
The degradation of nonfunctional mitochondrial proteins is of fundamental relevance for maintenance of cellular homeostasis. The heteromeric CLPXP protein complex in the mitochondrial matrix is part of this process. In the fungal aging model Podospora anserina, ablation of CLPXP leads to an increase in healthy lifespan. Here, we report that this counterintuitive increase depends on a functional autophagy machinery. In PaClpXP mutants, autophagy is involved in energy conservation and the compensation of impairments in respiration...
April 27, 2017: Aging Cell
https://www.readbyqxmd.com/read/28449207/targeting-anti-apoptotic-bcl2-family-proteins-in-haematological-malignancies-from-pathogenesis-to-treatment
#7
REVIEW
Meike Vogler, Harriet S Walter, Martin J S Dyer
The B-cell lymphoma 2 (BCL2) family of proteins comprise key regulators of apoptosis and are implicated in the pathogenesis of many malignancies, including lymphomas and leukaemias. Targeting of BCL2 proteins can be directly toxic to tumour cells or render them more sensitive to chemotherapy. Inhibition of the anti-apoptotic functions of BCL2 proteins using structure-based design to produce specific inhibitors of protein-protein interactions has been achieved for BCL2, MCL1 and BCL-XL (also termed BCL2L1), providing an armamentarium of new targeted therapies called BH3-mimetics...
April 27, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28449123/capturing-a-mammalian-dna-polymerase-extending-from-an-oxidized-nucleotide
#8
Amy M Whitaker, Mallory R Smith, Matthew A Schaich, Bret D Freudenthal
The oxidized nucleotide, 8-oxo-7,8-dihydro-2΄-deoxyguanosine (8-oxoG), is one of the most abundant DNA lesions. 8-oxoG plays a major role in tumorigenesis and human disease. Biological consequences of 8-oxoG are mediated in part by its insertion into the genome, making it essential to understand how DNA polymerases handle 8-oxoG. Insertion of 8-oxoG is mutagenic when opposite adenine but not when opposite cytosine. However, either result leads to DNA damage at the primer terminus (3΄-end) during the succeeding insertion event...
April 26, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28449114/neuro-symbolic-representation-learning-on-biological-knowledge-graphs
#9
Mona Alshahrani, Mohammed Asif Khan, Omar Maddouri, Akira R Kinjo, Núria Queralt-Rosinach, Robert Hoehndorf
Motivation: Biological data and knowledge bases increasingly rely on Semantic Web technologies and the use of knowledge graphs for data integration, retrieval and federated queries. In the past years, feature learning methods that are applicable to graph-structured data are becoming available, but have not yet widely been applied and evaluated on structured biological knowledge. Results: We develop a novel method for feature learning on biological knowledge graphs...
April 25, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28449106/microbiomeanalyst-a-web-based-tool-for-comprehensive-statistical-visual-and-meta-analysis-of-microbiome-data
#10
Achal Dhariwal, Jasmine Chong, Salam Habib, Irah L King, Luis B Agellon, Jianguo Xia
The widespread application of next-generation sequencing technologies has revolutionized microbiome research by enabling high-throughput profiling of the genetic contents of microbial communities. How to analyze the resulting large complex datasets remains a key challenge in current microbiome studies. Over the past decade, powerful computational pipelines and robust protocols have been established to enable efficient raw data processing and annotation. The focus has shifted toward downstream statistical analysis and functional interpretation...
April 26, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28449101/synthetic-biology-approaches-for-the-production-of-plant-metabolites-in-unicellular-organisms
#11
Tessa Moses, Payam Mehrshahi, Alison G Smith, Alain Goossens
Synthetic biology is the repurposing of biological systems for novel objectives and applications. Through the co-ordinated and balanced expression of genes, both native and those introduced from other organisms, resources within an industrial chassis can be siphoned for the commercial production of high-value commodities. This developing interdisciplinary field has the potential to revolutionize natural product discovery from higher plants, by providing a diverse array of tools, technologies, and strategies for exploring the large chemically complex space of plant natural products using unicellular organisms...
April 25, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28449100/integrated-analysis-of-individual-codon-contribution-to-protein-biosynthesis-reveals-a-new-approach-to-improving-the-basis-of-rational-gene-design
#12
Juan C Villada, Otávio José Bernardes Brustolini, Wendel Batista da Silveira
Gene codon optimization may be impaired by the misinterpretation of frequency and optimality of codons. Although recent studies have revealed the effects of codon usage bias (CUB) on protein biosynthesis, an integrated perspective of the biological role of individual codons remains unknown. Unlike other previous studies, we show, through an integrated framework that attributes of codons such as frequency, optimality and positional dependency should be combined to unveil individual codon contribution for protein biosynthesis...
April 24, 2017: DNA Research: An International Journal for Rapid Publication of Reports on Genes and Genomes
https://www.readbyqxmd.com/read/28449087/methyl-cpg-binding-domain-protein-1-regulates-localization-and-activity-of-tet1-in-a-cxxc3-domain-dependent-manner
#13
Peng Zhang, Cathia Rausch, Florian D Hastert, Boyana Boneva, Alina Filatova, Sujit J Patil, Ulrike A Nuber, Yu Gao, Xinyu Zhao, M Cristina Cardoso
Cytosine modifications diversify and structure the genome thereby controlling proper development and differentiation. Here, we focus on the interplay of the 5-methylcytosine reader Mbd1 and modifier Tet1 by analyzing their dynamic subcellular localization and the formation of the Tet oxidation product 5-hydroxymethylcytosine in mammalian cells. Our results demonstrate that Mbd1 enhances Tet1-mediated 5-methylcytosine oxidation. We show that this is due to enhancing the localization of Tet1, but not of Tet2 and Tet3 at heterochromatic DNA...
April 25, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28449079/small-non-coding-rna-and-cancer
#14
Giulia Romano, Dario Veneziano, Mario Acunzo, Carlo M Croce
The ENCODE project has reported that at least 80% of the human genome is biologically active, yet only a small part of human DNA encodes for protein. The massive amount of RNA transcribed but not translated into protein can be classified as housekeeping RNA (such as rRNA, tRNA) and regulatory RNA (such as miRNA, piRNA, lncRNA). Small non-coding RNAs, in particular, have been the focus of many studies in the last 20 years and their fundamental role in many human diseases is currently well established. Inter alia, their role in cancer development and progression, as well as in drug resistance, is being increasingly investigated...
April 26, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28449072/functions-of-galectins-as-self-non-self-recognition-and-effector-factors
#15
Gerardo R Vasta, Chiguang Feng, Nuria González-Montalbán, Justin Mancini, Lishi Yang, Kelsey Abernathy, Graeme Frost, Cheyenne Palm
Carbohydrate structures on the cell surface encode complex information that through specific recognition by carbohydrate-binding proteins (lectins), modulates interactions between cells, cells and the extracellular matrix, or mediates recognition of potential microbial pathogens. Galectins are a family of ß-galactoside-binding lectins, which are evolutionary conserved and have been identified in most organisms, from fungi to invertebrates and vertebrates, including mammals. Since their discovery in the 1970s, their biological roles, initially understood as limited to recognition of endogenous carbohydrate ligands in embryogenesis and development, have expanded in recent years by the discovery of their roles in tissue repair and regulation of immune homeostasis...
April 25, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28449068/development-of-a-novel-human-recellularized-endometrium-that-responds-to-a-28-day-hormone-treatment
#16
Susan A Olalekan, Joanna E Burdette, Spiro Getsios, Teresa K Woodruff, J Julie Kim
Three dimensional (3D) in vitro models have been established to study the physiology and pathophysiology of the endometrium. With emerging evidence that the native extracellular matrix (ECM) provides appropriate cues and growth factors essential for tissue homeostasis, we describe, a novel 3D endometrium in vitro model developed from decellularized human endometrial tissue repopulated with primary endometrial cells. Analysis of the decellularized endometrium using mass spectrometry analysis revealed an enrichment of cell adhesion molecules, cytoskeletal proteins and ECM proteins such as Collagen IV and Laminin...
April 25, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28449045/the-relationship-between-self-reported-health-status-and-signs-of-psychological-distress-within-european-urban-contexts
#17
Greg Williams, Francesco Di Nardo, Arpana Verma
Self-reported health status (SRHS) reflects an individual's perception of their social, biological and psychological health, and has been linked to increased mortality risk and increased use of health services. Having a psychological co-morbidity can reduce health outcomes and increase healthcare costs. This paper investigates the relationship between SRHS and signs of psychological distress (PD) in European urban settings. The study sample comprised 20 439 adult respondents to surveys conducted across 37 urban areas...
April 25, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/28449042/long-noncoding-rna-a-crosslink-in-biological-regulatory-network
#18
Yuwei Zhang, Yang Tao, Qi Liao
Long noncoding RNAs (lncRNAs) had been defined as a novel class of functional RNAs longer than 200 nucleotides around a decade ago. It is widely acknowledged that lncRNAs play a significant role in regulation of gene expression, but the biological and molecular mechanisms are diverse and complex, and remain to be determined. Especially, the regulatory network of lncRNAs associated with other biological molecules is still a controversial matter, thus becoming a new frontier of the studies on transcriptome. Recent advance in high-throughput sequencing technologies and bioinformatics approaches may be an accelerator to lift the mysterious veil...
April 24, 2017: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/28449041/periodontal-disease-tooth-loss-and-cancer-risk
#19
Dominique S Michaud, Zhuxuan Fu, Jian Shi, Mei Chung
Periodontal disease, which includes gingivitis and periodontitis, is highly prevalent in adults and disease severity increases with age. The relationship between periodontal disease and oral cancer has been examined for several decades, but there is increasing interest in the link between periodontal disease and overall cancer risk, with systemic inflammation serving as the main focus for biological plausibility. Numerous case-control studies have addressed the role of oral health in head and neck cancer, and several cohort studies have examined associations with other types of cancers over the past decade...
April 25, 2017: Epidemiologic Reviews
https://www.readbyqxmd.com/read/28449031/rnablueprint-flexible-multiple-target-nucleic-acid-sequence-design
#20
Stefan Hammer, Birgit Tschiatschek, Christoph Flamm, Ivo L Hofacker, Sven Findeiß
Motivation: Realizing the value of synthetic biology in biotechnology and medicine requires the design of molecules with specialized functions. Due to its close structure to function relationship, and the availability of good structure prediction methods and energy models, RNA is perfectly suited to be synthetically engineered with predefined properties. However, currently available RNA design tools cannot be easily adapted to accommodate new design specifications. Furthermore, complicated sampling and optimization methods are often developed to suit a specific RNA design goal, adding to their inflexibility...
April 25, 2017: Bioinformatics
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