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https://www.readbyqxmd.com/read/28598997/selection-of-reference-genes-for-quantitative-real-time-rt-pcr-assays-in-different-morphological-forms-of-dimorphic-zygomycetous-fungus-benjaminiella-poitrasii
#1
Ejaj K Pathan, Vandana Ghormade, Mukund V Deshpande
Benjaminiella poitrasii, a dimorphic non-pathogenic zygomycetous fungus, exhibits a morphological yeast (Y) to hypha (H) reversible transition in the vegetative phase, sporangiospores (S) in the asexual phase and zygospores (Z) in the sexual phase. To study the gene expression across these diverse morphological forms, suitable reference genes are required. In the present study, 13 genes viz. ACT, 18S rRNA, eEF1α, eEF-Tu,eIF-1A, Tub-α, Tub-b, Ubc, GAPDH, Try, WS-21, NADGDH and NADPGDH were evaluated for their potential as a reference, particularly for studying gene expression during the Y-H reversible transition and also for other asexual and sexual life stages of B...
2017: PloS One
https://www.readbyqxmd.com/read/28584690/unusual-patterns-of-thoracic-metastasis-of-urinary-bladder-carcinoma
#2
Robert Hiensch, Habtamu Belete, Mahsan Rashidfarokhi, Irene Galperin, Fouzia Shakil, Oleg Epelbaum
Urinary bladder carcinoma (UBC) is the ninth most common malignancy and the second most common urological malignancy after prostate cancer in men. Thoracic metastases occur in more than half of those with muscle-invasive disease, and these generally assume the form of multiple solid parenchymal lesions characteristic of hematogenous seeding of the lung. Unusual patterns of thoracic spread of UBC have also been described albeit sporadically in the form of case reports and series. The aim of our case series is to provide illustrations of several atypical patterns of thoracic involvement by UBC such as isolated mediastinal lymphadenopathy, cavitary lung metastases, malignant pleural effusion, endobronchial disease, and pulmonary tumor embolism...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28581337/electroporation-mediated-gene-delivery-of-surfactant-protein-b-sp-b-restores-expression-and-improves-survival-in-mouse-model-of-sp-b-deficiency
#3
Rebecca C Barnett, Xin Lin, Michael Barravecchia, Rosemary A Norman, Karen L de Mesy Bentley, Fabeha Fazal, Jennifer L Young, David A Dean
Surfactant Protein B Deficiency is a rare but lethal monogenetic, congenital lung disease of the neonate that is unresponsive to any treatment except lung transplantation. Based on the potential that gene therapy offers to treat such intractable diseases, our objective was to test whether an electroporation-based gene delivery approach could restore surfactant protein B expression and improve survival in a compound knockout mouse model of surfactant protein B deficiency. Surfactant protein B expression can be shut off in these mice upon withdrawl of doxycycline, resulting in decreased levels of surfactant protein B within four days and death due to lung dysfunction within four to seven days...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28572497/ubc-nepal-expedition-markedly-lower-cerebral-blood-flow-in-high-altitude-sherpa-children-compared-to-children-residing-at-sea-level
#4
Daniela Flück, Laura Emily Morris, Shailesh Niroula, Christine M Tallon, Kami T Sherpa, Mike Stembridge, Philip N Ainslie, Ali Mary McManus
Developmental cerebral hemodynamic adaptations to chronic high altitude exposure, such as in the Sherpa population, are largely unknown. To examine hemodynamic adaptations in the developing human brain, we assessed common carotid (CCA), internal carotid (ICA) and vertebral artery (VA) flow and middle cerebral artery (MCA) velocity in 25 (9.6±1.0 y, 129±9 cm, 27±8 kg, 14 girls) Sherpa children (3800m, Nepal) and 25 (9.9±0.7 y, 143±7 cm, 34±6 kg, 14 girls) age-matched sea-level children (344m, Canada) during supine rest...
June 1, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28559905/validation-of-suitable-reference-genes-for-rt-qpcr-data-in-achyranthes-bidentata-blume-under-different-experimental-conditions
#5
Jinting Li, Xueping Han, Can Wang, Wanzhen Qi, Weiyu Zhang, Li Tang, Xiting Zhao
Real-time quantitative polymerase chain reaction (RT-qPCR) is a sensitive technique for gene expression studies. However, choosing the appropriate reference gene is essential to obtain reliable results for RT-qPCR assays. In the present work, the expression of eight candidate reference genes, EF1-α (elongation factor 1-α), GAPDH (glyceraldehyde 3-phosphate dehydrogenase), UBC (ubiquitin-conjugating enzyme), UBQ (polyubiquitin), ACT (actin), β-TUB (β-tubulin), APT1 (adenine phosphoribosyltransferase 1), and 18S rRNA (18S ribosomal RNA), was evaluated in Achyranthes bidentata samples using two algorithms, geNorm and NormFinder...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28540249/liquid-biopsies-for-bladder-cancer
#6
EDITORIAL
Douglas G Ward, Richard T Bryan
The development of accurate urinary biomarkers for the non-invasive detection of urothelial bladder cancer (UBC) could transform patient pathways by reducing reliance on cystoscopy, and the identification of highly prognostic (or even predictive) biomarkers could better guide patient management. A number of approaches are being utilised to address these challenges in both urinary- and plasma-borne tumour DNA (tDNA), so-called "liquid biopsies". Next generation sequencing (NGS) and droplet digital PCR (ddPCR) allow detection of very low levels of such tDNA amongst a large excess of non-tumour DNA, the former permitting large mutation panels to be assessed and the latter potentially identifying ultrarare mutant alleles yet restricted for multiplexing...
April 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28534984/ccl21-ccr7-interaction-promotes-cellular-migration-and-invasion-via-modulation-of-the-mek-erk1-2-signaling-pathway-and-correlates-with-lymphatic-metastatic-spread-and-poor-prognosis-in-urinary-bladder-cancer
#7
Yang Xiong, Fang Huang, Xiaozhou Li, Zhi Chen, Deyun Feng, Haiying Jiang, Wei Chen, Xiangyang Zhang
Lymph node metastasis in patients with urinary bladder cancer (UBC) is always associated with poor prognosis and is the determinant for tumor staging and the development of treatment regimens; however, its underlying mechanisms remain to be studied. Immunohistochemical staining of tumor sections from 62 UBC patients was performed using CCR7, D2-40 and CD34 antibodies. We showed that increased CCR7 expression was significantly associated with positive lymph node status (P=0.008), pT3-T4 tumor stage (P=0.015), tumor grade (P=0...
May 17, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28524234/alcohol-consumption-and-cigarette-smoking-in-combination-a-predictor-of-contralateral-breast-cancer-risk-in-the-wecare-study
#8
Julia A Knight, Jing Fan, Kathleen E Malone, Esther M John, Charles F Lynch, Rikke Langballe, Leslie Bernstein, Roy Shore, Jennifer D Brooks, Anne S Reiner, Meghan Woods, Xiaolin Liang, Jonine L Bernstein
Alcohol drinking and, to a lesser extent, cigarette smoking are risk factors for a first primary breast cancer. Information on these behaviours at diagnosis may contribute to risk prediction of contralateral breast cancer (CBC) and they are potentially modifiable. The WECARE Study is a large population-based case-control study of women with breast cancer where cases (N=1521) had asynchronous CBC and controls (N=2212), matched on survival time and other factors, had unilateral breast cancer (UBC). Using multivariable conditional logistic regression to estimate rate ratios (RR) and 95% confidence intervals (CI), we examined the risk of CBC in relation to drinking and smoking history at and following first diagnosis...
May 19, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28521362/association-of-common-genetic-variants-with-contralateral-breast-cancer-risk-in-the-wecare-study
#9
Mark E Robson, Anne S Reiner, Jennifer D Brooks, Patrick J Concannon, Esther M John, Lene Mellemkjaer, Leslie Bernstein, Kathleen E Malone, Julia A Knight, Charles F Lynch, Meghan Woods, Xiaolin Liang, Robert W Haile, David J Duggan, Roy E Shore, Susan A Smith, Duncan C Thomas, Daniel O Stram, Jonine L Bernstein
Background: Women with unilateral breast cancer (UBC) are at risk of developing a subsequent contralateral breast cancer (CBC). Common variants are associated with breast cancer risk. Whether these influence CBC risk is unknown. Methods: Participants were breast cancer cases from the population-based Women's Environmental Cancer and Radiation Epidemiology (WECARE) Study. Sixty-seven established breast cancer risk loci were genotyped directly or by imputation in 1459 case subjects with CBC and 2126 UBC control subjects...
October 1, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/28508171/over-expression-of-tobacco-ubc1-encoding-a-ubiquitin-conjugating-enzyme-increases-cadmium-tolerance-by-activating-the-20s-26s-proteasome-and-by-decreasing-cd-accumulation-and-oxidative-stress-in-tobacco-nicotiana-tabacum
#10
Ramin Bahmani, DongGwan Kim, Byoung Doo Lee, Seongbin Hwang
Ubiquitin (Ub)-conjugating enzyme (UBC, E2) receives Ub from Ub-activating enzyme (E1) and transfers it to target proteins, thereby playing a key role in Ub/26S proteasome-dependent proteolysis. UBC has been reported to be involved in tolerating abiotic stress in plants, including drought, salt, osmotic and water stresses. To isolate the genes involved in Cd tolerance, we transformed WT (wild-type) yeast Y800 with a tobacco cDNA expression library and isolated a tobacco cDNA, NtUBC1 (Ub-conjugating enzyme), that enhances cadmium tolerance...
May 15, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28490769/increased-cerebral-expressions-of-mmps-cldn5-ocln-zo1-and-aqps-are-associated-with-brain-edema-following-fatal-heat-stroke
#11
Yu Du, Jing-Tao Xu, Hong-Nian Jin, Rui Zhao, Dong Zhao, Si-Hao Du, Ye Xue, Xiao-Li Xie, Qi Wang
Human brain samples were collected from 46 autopsy cases, including 23 fatal heat stroke cases and 23 age-matched controls. Nine candidate reference genes (PES1, POLR2A, IPO8, HMBS, SDHA, GAPDH, UBC, B2M, ACTB) were evaluated in the cerebral cortex of 10 forensic autopsy cases (5 heat stroke and 5 controls), using the geNorm module in qBase(plus) software. SDHA, POLR2A, IPO8 and HMBS were identified as the most stable reference genes. Using these validated reference genes, mRNA expressions of Matrix metalloproteinases (MMPs, MMP2 and MMP9), Claudin5 (CLDN5), Occludin (OCLN), Zona occludens protein-1 (ZO1) and Aquaporins (AQPs, AQP1 and AQP4) in the cerebral cortex were examined...
May 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28488128/ki-67-and-cell-cycle-regulators-p53-p63-and-cyclind1-as-prognostic-markers-for-recurrence-progression-of-bladder-urothelial-carcinoma
#12
Saba El-Gendi, Ghada Abu-Sheasha
Deregulation of the cell cycle regulating genes is common in urothelial bladder carcinoma (UBC). We aimed to examine the prognostic significance of ki-67, p53, p63 and cyclinD1expression in UBC and to identify optimal cut-off points to help identifying patients at high risk of tumor recurrence. We evaluated the immunohistochemical expression of ki-67, p53, p63 and cyclinD1 in 100 UBCs. The conventional and the classification and regression trees-guided (CART-guided) methods were utilized to determine the independent predictors of tumor recurrence...
May 9, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28473518/randomised-controlled-trial-evaluating-the-short-term-analgesic-effect-of-topical-diclofenac-on-chronic-achilles-tendon-pain-a-pilot-study
#13
Erin Rebecca Bussin, Brian Cairns, Jim Bovard, Alexander Scott
OBJECTIVES: To determine if a topically applied non-steroidal anti-inflammatory drug (diclofenac) can provide short-term pain relief for chronic Achilles tendinopathy (CAT), in order to inform the development of a new rehabilitation protocol. DESIGN AND SETTING: Pilot double-blind, cross-over randomised controlled trial providing participants with tertiary care. The study was conducted at a single research centre in Vancouver, BC. PARTICIPANTS: Sixteen adults with unilateral CAT and three adults with bilateral CAT participated...
May 4, 2017: BMJ Open
https://www.readbyqxmd.com/read/28468590/ubc-%C3%A2-rapid-test-for-detection-of-carcinoma-in-situ-for-bladder-cancer
#14
Thorsten H Ecke, Sarah Weiß, Carsten Stephan, Steffen Hallmann, Dimitri Barski, Thomas Otto, Holger Gerullis
UBC(®) Rapid Test is a test that detects fragments of cytokeratins 8 and 18 in urine. We present results of a multicentre study measuring UBC(®) Rapid Test in bladder cancer patients and healthy controls with focus on carcinoma in situ (CIS) and high-grade bladder cancer. From our study with N = 452 patients, we made a stratified sub-analysis for carcinoma in situ of the urinary bladder. Clinical urine samples were used from 87 patients with tumours of the urinary bladder (23 carcinoma in situ, 23 non-muscle-invasive low-grade tumours, 21 non-muscle-invasive high-grade tumours and 20 muscle-invasive high-grade tumours) and from 22 healthy controls...
May 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28459201/altered-expression-of-small-leucine-rich-proteoglycans-decorin-biglycan-and-lumican-plausible-diagnostic-marker-in-urothelial-carcinoma-of-bladder
#15
Sandeep Appunni, Vivek Anand, Madhuram Khandelwal, Amlesh Seth, Sandeep Mathur, Alpana Sharma
Small leucine-rich proteoglycans are components of extracellular matrix that regulates neoplastic transformation. Among small leucine rich proteoglycans, Decorin, Biglycan and Lumican are most commonly implicated markers, and their expression is well studied in various malignancies. In this novel study, we have collectively evaluated expression of these three molecules in urothelial carcinoma of bladder. Thirty patients of confirmed untreated bladder cancer, 30 healthy controls for blood and 30 controls for adjacent non-tumour tissue were enrolled...
May 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28453515/reliable-reference-genes-for-normalization-of-gene-expression-data-in-tea-plants-camellia-sinensis-exposed-to-metal-stresses
#16
Ming-Le Wang, Qing-Hui Li, Hua-Hong Xin, Xuan Chen, Xu-Jun Zhu, Xing-Hui Li
Tea plants [Camellia sinensis (L.) O. Kuntze] are an important leaf-type crop that are widely used for the production of non-alcoholic beverages in the world. Exposure to excessive amounts of heavy metals adversely affects the quality and yield of tea leaves. To analyze the molecular responses of tea plants to heavy metals, a reliable quantification of gene expression is important and of major importance herein is the normalization of the measured expression levels for the target genes. Ideally, stably expressed reference genes should be evaluated in all experimental systems...
2017: PloS One
https://www.readbyqxmd.com/read/28424053/stress-induced-nuclear-granules-form-in-response-to-accumulation-of-misfolded-proteins-in-caenorhabditis-elegans
#17
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
#18
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
#19
REVIEW
Raymond J 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 40years, 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 12, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28409408/spontaneous-recombinase-activity-of-cre-ert2-in-vivo
#20
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...
June 2017: Transgenic Research
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