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https://www.readbyqxmd.com/read/28424053/stress-induced-nuclear-granules-form-in-response-to-accumulation-of-misfolded-proteins-in-caenorhabditis-elegans
#1
Katherine M Sampuda, Mason Riley, Lynn Boyd
BACKGROUND: Environmental stress can affect the viability or fecundity of an organism. Environmental stressors may affect the genome or the proteome and can cause cellular distress by contributing to protein damage or misfolding. This study examines the cellular response to environmental stress in the germline of the nematode, C. elegans. RESULTS: Salt stress, oxidative stress, and starvation, but not heat shock, induce the relocalization of ubiquitin, proteasome, and the TIAR-2 protein into distinct subnuclear regions referred to as stress induced nuclear granules (SINGs)...
April 19, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28422550/evaluation-of-the-diagnostic-accuracy-of-ubc-%C3%A2-rapid-in-bladder-cancer-a-swedish-multicentre-study
#2
Johan Styrke, Helene Henriksson, Börje Ljungberg, Mudhar Hasan, Ingrid Silfverberg, Roland Einarsson, Per-Uno Malmström, Amir Sherif
OBJECTIVE: The aim of this study was to determine the diagnostic accuracy of UBC(®) Rapid - a urine-based marker for bladder cancer - in patients with bladder cancer and controls, and to compare the test results across risk groups. MATERIALS AND METHODS: This prospective phase II study was conducted at four Swedish hospitals. UBC Rapid was evaluated in four groups: A, newly diagnosed bladder cancer (n = 94); B, follow-up of non-muscle-invasive bladder cancer (n = 75); C, benign urinary tract diseases (n = 51); and D, healthy controls (n = 50)...
April 19, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28411115/sponging-off-nature-for-new-drug-leads
#3
REVIEW
Raymond Andersen
Marine sponges have consistently been the richest source of new marine natural products with unprecedented chemical scaffolds and potent biological activities that have been reported in the chemical literature since the early 1970s. During the last 40 years, chemists in the Andersen laboratory at UBC, in collaboration with biologists, have discovered many novel bioactive sponge natural products. Four experimental drug candidates for treatment of inflammation and cancer, that were inspired by members of this sponge natural product collection, have progressed to phase I/II/III clinical trials...
April 11, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28409408/spontaneous-recombinase-activity-of-cre-ert2-in-vivo
#4
Jasmin Kristianto, Michael G Johnson, Ryley K Zastrow, Abigail B Radcliff, Robert D Blank
Inducible Cre-ERT recombinase technology is widely used for gene targeting studies. The second generation of inducible Cre-ERT recombinase, hemizygous B6.129S-Tg(UBC-cre/ERT2)1Ejb/J (hereafter abbreviated as Cre-ERT2), a fusion of a mutated estrogen receptor and Cre recombinase, was engineered to be more efficient and specific than the original Cre-ERT. The putative mechanism of selective Cre-mediated recombination is Cre sequestration in the cytoplasm in the basal state with translocation to the nucleus only in the presence of tamoxifen...
April 13, 2017: Transgenic Research
https://www.readbyqxmd.com/read/28400501/contribution-of-minced-muscle-graft-progenitor-cells-to-muscle-fiber-formation-after-volumetric-muscle-loss-injury-in-wild-type-and-immune-deficient-mice
#5
Benjamin T Corona, Beth E P Henderson, Catherine L Ward, Sarah M Greising
Volumetric muscle injury (VML) causes an irrecoverable loss of muscle fibers, persistent strength deficits, and chronic disability. A crucial challenge to VML injury and possible regeneration is the removal of all of the in situ native elements necessary for skeletal muscle regeneration. Our first goal was to establish a reliable VML model in the mouse tibialis anterior (TA) muscle. In adult male wild-type and nude mice, a non-repaired ≈20% VML injury to the TA muscle resulted in an ≈59% loss in nerve evoked muscle strength, ≈33% loss in muscle mass, and ≈29% loss of muscle fibers at 28 day post-injury...
April 2017: Physiological Reports
https://www.readbyqxmd.com/read/28396613/expression-of-human-epidermal-growth-factor-receptor-2-in-bladder-urothelial-carcinoma
#6
Mohamed Reda El Ochi, Mohamed Oukabli, Elarbi Bouaiti, Hafsa Chahdi, Adil Boudhas, Mohamed Allaoui, Ahmed Ameur, Mohamed Abbar, Abderrahmane Al Bouzidi
BACKGROUND: Urothelial bladder carcinoma (UBC) is one of the most prevalent cancers in men worldwide. Human epidermal growth factor receptor 2 (HER2) expression has been detected in a wide range of urothelial carcinoma. Despite many reports in the literature, the prognostic significance of this overexpression remains unclear. The aim of this study was to assess the expression of HER2 in urothelial bladder carcinomas and its association with clinical and pathological parameters. METHODS: 103 cases of UBC were diagnosed in our department between January 2014 and December 2015...
2017: BMC Clinical Pathology
https://www.readbyqxmd.com/read/28386678/identification-of-novel-potential-genetic-predictors-of-urothelial-bladder-carcinoma-susceptibility-in-pakistani-population
#7
Syeda Hafiza Benish Ali, Kashif Sardar Bangash, Abdur Rauf, Muhammad Younis, Khursheed Anwar, Raja Khurram, Muhammad Athar Khawaja, Maleeha Azam, Abid Ali Qureshi, Saeed Akhter, Lambertus A Kiemeney, Raheel Qamar
Urothelial bladder carcinoma (UBC) is the most common among urinary bladder neoplasms. We carried out a preliminary study to determine the genetic etiology of UBC in Pakistani population, for this 25 sequence variants from 17 candidate genes were studied in 400 individuals by using polymerase chain reaction-based techniques. Multivariate logistic regression analysis was performed for association analysis of the overall data as well as the data stratified by smoking status, tumor grade and tumor stage. Variants of GSTM1, IGFBP3, LEPR and ACE were found to be associated with altered UBC risk in the overall comparison...
April 6, 2017: Familial Cancer
https://www.readbyqxmd.com/read/28381493/recreational-concentrations-of-alcohol-enhance-synaptic-inhibition-of-cerebellar-unipolar-brush-cells-via-pre-and-postsynaptic-mechanisms
#8
Ben David Richardson, David James Rossi
Variation in cerebellar sensitivity to alcohol/ethanol (EtOH) is a heritable trait associated with alcohol use disorder (AUD) in humans and high EtOH consumption in rodents, but the underlying mechanisms are poorly understood. A recently identified cellular substrate of cerebellar sensitivity to EtOH: the GABAergic system of cerebellar granule cells (GCs), shows divergent responses to EtOH paralleling EtOH consumption and motor impairment phenotype. Although GCs are the dominant afferent integrator in the cerebellum, such integration is shared by unipolar brush cells (UBCs) in vestibulocerebellar lobes...
April 5, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28372755/immobilization-of-cu-2-and-cd-2-by-earthworm-manure-derived-biochar-in-acidic-circumstance
#9
Zhanghong Wang, Fei Shen, Dekui Shen, Yahui Jiang, Rui Xiao
Earthworm manure, the by-product obtained from the disposing of biowastes by earthworm breeding, is largely produced and employed as a feedstock for biochar preparation through pyrolysis. For repairing acidic soil or acidic electroplating effluent, biochar physicochemical properties would suffer from some changes like an acidic washing process, which hence affected its application functions. Pristine biochar (UBC) from pyrolysis of earthworm manure at 700°C and biochar treated by HCl (WBC) were comparatively investigated regarding their physicochemical properties, adsorption capability and adsorption mechanism of Cu(2+) and Cd(2+) from aqueous solution to explore the immobilization characteristics of biochar in acidic environment...
March 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28365935/selecting-key-genes-associated-with-ovarian-cancer-based-on-differential-expression-network
#10
Xuemei Lu, Jianfang Wang, Xinfang Shan, Yun Li
PURPOSE: The purpose in this study was to select key genes related to ovarian cancer. METHODS: The gene expression profiles of E-GEOD-6008, E-GEOD-26712, E-GEOD-27651, E-GEOD-14001 were obtained from ArrayExpress database (http://www.ebi.ac.uk/arrayexpress/). Following data recruitment and preprocessing, differentially expressed genes (DEGs) were characterized using Significance Analysis of Microarrays (SAM). Then, a differential expression network (DEN) was constructed using Cytoscape 2...
January 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28362998/characterization-of-maize-genotypes-for-genetic-diversity-on-the-basis-of-inter-simple-sequence-repeats
#11
R W Muhammad, A Qayyum, M Q Ahmad, A Hamza, M Yousaf, B Ahmad, M Younas, W Malik, S Liaqat, E Noor
Genetic diversity in crops is essential to make improvements related to superior germplasms. Implementation of molecular markers to identify suitable genotypes speeds up the breeding progress by enhancing selection efficiency. This study was carried out to probe genetic diversity among 21 maize genotypes using 20 inter simple sequence repeat (ISSR) markers. We identified a total of 190 polymorphic bands with an average of 9.5 alleles per primer. The highest number of polymorphic bands (17) was found using ISSR marker UBC-10, whereas the lowest number of polymorphic bands (4) was found using UBC-809...
March 30, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28348449/combined-genetic-biomarkers-confer-susceptibility-to-risk-of-urothelial-bladder-carcinoma-in-a-saudi-population
#12
Nasser Attia Elhawary, Anmar Nassir, Hesham Saada, Anas Dannoun, Omar Qoqandi, Ammar Alsharif, Mohammed Taher Tayeb
We evaluated the associations between seven single nucleotide polymorphisms and susceptibility to urothelial bladder carcinoma (UBC) in a Saudi population. Genomic DNA was taken from buccal cells of 52 patients with UBC and 104 controls for genotyping of GSTT1, GSTM1, rs4646903, rs1048943, TP53 rs1042522, rs1801133, and rs1801394 using PCR and TaqMan® assays. The rs1801133 and rs1801394 variants showed strong associations with UBC (OR = 2.3, P = 0.0002; OR = 2.6, P = 0.0001, resp.). Homozygosity of Pro72 conferred a significant double risk in cases compared with controls (30...
2017: Disease Markers
https://www.readbyqxmd.com/read/28293425/podocalyxin-like-and-rna-binding-motif-protein-3-are-prognostic-biomarkers-in-urothelial-bladder-cancer-a-validatory-study
#13
Karolina Boman, Gustav Andersson, Christoffer Wennersten, Björn Nodin, Göran Ahlgren, Karin Jirström
BACKGROUND: Urothelial bladder cancer (UBC) is a disease that often is discovered when the tumour is non-muscle invasive, i.e. in Ta or T1 stage. Some patients will progress into muscle-invasive disease, a potentially deadly condition. Although there are some prognostic models, the need for prognostic and predictive biomarkers is considerate and urgent. Membranous expression of podocalyxin-like protein 1 (PODXL) and low expression of the RNA-binding motif 3 (RBM3) has previously been shown to be associated with an aggressive tumour phenotype and poor prognosis in several forms of cancer, including UBC...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28263974/histone-demethylase-jmjd1a-promotes-urinary-bladder-cancer-progression-by-enhancing-glycolysis-through-coactivation-of-hypoxia-inducible-factor-1%C3%AE
#14
W Wan, K Peng, M Li, L Qin, Z Tong, J Yan, B Shen, C Yu
High aerobic glycolysis not only provides energy to cancer cells, but also supports their anabolic growth. JMJD1A, a histone demethylase that specifically demethylates H3K9me1/2, is overexpressed in multiple cancers, including urinary bladder cancer (UBC). It is unclear whether JMJD1A could promote cancer cell growth through enhancing glycolysis. In this study, we found that downregulation of JMJD1A decreased UBC cell proliferation, colony formation and xenograft tumor growth. Knockdown of JMJD1A inhibited glycolysis by decreasing the expression of genes participated in glucose metabolism, including GLUT1, HK2, PGK1, PGM, LDHA and MCT4...
March 6, 2017: Oncogene
https://www.readbyqxmd.com/read/28262749/identification-of-stable-housekeeping-genes-in-response-to-ionizing-radiation-in-cancer-research
#15
Gopal Iyer, Albert R Wang, Sean R Brennan, Shay Bourgeois, Eric Armstrong, Pari Shah, Paul M Harari
Housekeeping genes (HKGs) are essential for basic maintenance of a variety of cellular processes. They ideally maintain uniform expression independent of experimental conditions. However, the effects of ionizing radiation (IR) on HKG expression is unclear. Statistical algorithms, geNorm and Normfinder were used for estimating the stability of HKGs as raw quantification cycle (Cq) values were not a reliable factor for normalization. Head and neck, non-small lung and pancreas cells were exposed to 2, 4 and 6 Gy IR doses and expression of fourteen HKGs was measured at 5 min to 48 h post-irradiation within a given tissue...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28257834/anxa1ac2-26-peptide-a-possible-therapeutic-approach-in-inflammatory-ocular-diseases
#16
Laila Toniol Cardin, Nathália Martins Sonehara, Kallyne Kioko Oliveira Mimura, Anemari Ramos Dinarte Dos Santos, Wilson Araújo da Silva, Lays Martin Sobral, Andréia Machado Leopoldino, Bianca Rodrigues da Cunha, Eloiza H Tajara, Sonia Maria Oliani, Flávia Cristina Rodrigues-Lisoni
The eye is immunologically privileged when inflammatory responses are suppressed. One component responsible for the suppression of inflammatory responses is the blood retinal barrier, which comprises the retinal pigment epithelium. The destruction of this barrier initiates inflammation, which can affect any part of the eye. Therefore, inflammatory response is controlled by the action of anti-inflammatory mediators, among these mediators, annexin A1 (ANXA1) protein acts as a modulator of inflammation. In this study we aimed to improve the knowledge of this area by investigating how a peptide of the ANXA1 protein (ANXA1Ac2-26) modulates the morphology, proliferation, migration and expression of genes and proteins in human retinal pigment epithelium cells (ARPE-19)...
May 30, 2017: Gene
https://www.readbyqxmd.com/read/28242297/systems-biology-approach-to-late-onset-alzheimer-s-disease-genome-wide-association-study-identifies-novel-candidate-genes-validated-using-brain-expression-data-and-caenorhabditis-elegans-experiments
#17
Shubhabrata Mukherjee, Joshua C Russell, Daniel T Carr, Jeremy D Burgess, Mariet Allen, Daniel J Serie, Kevin L Boehme, John S K Kauwe, Adam C Naj, David W Fardo, Dennis W Dickson, Thomas J Montine, Nilufer Ertekin-Taner, Matt R Kaeberlein, Paul K Crane
INTRODUCTION: We sought to determine whether a systems biology approach may identify novel late-onset Alzheimer's disease (LOAD) loci. METHODS: We performed gene-wide association analyses and integrated results with human protein-protein interaction data using network analyses. We performed functional validation on novel genes using a transgenic Caenorhabditis elegans Aβ proteotoxicity model and evaluated novel genes using brain expression data from people with LOAD and other neurodegenerative conditions...
February 24, 2017: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/28237703/effect-of-cellular-ubiquitin-levels-on-the-regulation-of-oxidative-stress-response-and-proteasome-function-via-nrf1
#18
Donghee Lee, Kwon-Yul Ryu
The polyubiquitin genes Ubb and Ubc are upregulated under oxidative stress induced by arsenite [As(III)]. However, the role of ubiquitin (Ub) under As(III) exposure is not known in detail. In a previous study, we showed that the reduced viability observed in Ubc(-/-) mouse embryonic fibroblasts under As(III) exposure was not due to dysregulation of the Nrf2-Keap1 pathway, which prompted us to investigate another NFE2 family protein, nuclear factor erythroid 2-related factor 1 (Nrf1). In this study, we found that Ub deficiency due to Ubc knockdown in N2a cells reduced cell viability and proteasome activity under As(III) exposure...
April 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28231288/characterization-and-expression-analysis-of-genes-encoding-ubiquitin-conjugating-domain-containing-enzymes-in-carica-papaya
#19
Dengwei Jue, Xuelian Sang, Bo Shu, Liqin Liu, Yicheng Wang, Zhiwei Jia, Yu Zou, Shengyou Shi
BACKGROUND: Ripening affects the quality and nutritional contents of fleshy fruits and is a crucial process of fruit development. Although several studies have suggested that ubiquitin-conjugating enzyme (E2s or UBC enzymes) are involved in the regulation of fruit ripening, little is known about the function of E2s in papaya (Carica papaya). METHODOLOGY/PRINCIPAL FINDINGS: In the present study, we searched the papaya genome and identified 34 putative UBC genes, which were clustered into 17 phylogenetic subgroups...
2017: PloS One
https://www.readbyqxmd.com/read/28195645/exploring-the-views-of-relatives-of-frail-elderly-patients-about-participating-in-a-geriatric-dentistry-program
#20
Diego Machado Ardenghi, Chris Wyatt
Elderly residents of long-term care facilities (LTC) have difficulty accessing dental services. Aiming to improve access for this population, the Geriatric Dental Program (GDP) was established by UBC Faculty of Dentistry in 2002. Within the GDP, elderly people receive fee-for-service dental care. The objective of this research was to explore whether accessing these services had an impact on the lives of the patients' relatives. Data was collected through semi-structured, face-to-face, audio-recorded interviews with family members of 12 GDP patients...
February 14, 2017: Special Care in Dentistry
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