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https://www.readbyqxmd.com/read/28651338/evaluation-of-the-impact-of-tumor-hpv-status-on-outcome-in-patients-with-locally-advanced-unresectable-head-and-neck-squamous-cell-carcinoma-hnscc-receiving-cisplatin-5-fluorouracil-with-or-without-docetaxel-a-subset-analysis-of-eortc-24971-study
#1
A Psyrri, C Fortpied, G Koutsodontis, M Avgeris, C Kroupis, N Goutas, J Menis, L Herman, L Giurgea, E Remenar, M Degardin, I S Pateras, J A Langendijk, C van Herpen, A Awada, J R Germà-Lluch, H R Kienzer, L Licitra, J B Vermorken
Background: EORTC 24971 was a phase III trial demonstrating superiority of induction regimen TPF over PF, in terms of progression-free (PFS) and overall survival (OS) in locoregionally advanced unresectable HNSCC. We conducted a retrospective analysis of prospectively collected data aiming to evaluate whether only HPV(-) patients (pts) benefit from adding docetaxel to PF, in which case de-intensifying induction treatment in HPV(+) pts could be considered. Methods: Pre-therapy tumor biopsies (blocks or slides) were assessed for high-risk HPV by p16 immunohistochemistry, PCR and qPCR...
June 23, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28650991/distinguishing-functional-polymorphism-from-random-variation-in-the-sequences-of-10-000-hla-a-b-and-c-alleles
#2
James Robinson, Lisbeth A Guethlein, Nezih Cereb, Soo Young Yang, Paul J Norman, Steven G E Marsh, Peter Parham
HLA class I glycoproteins contain the functional sites that bind peptide antigens and engage lymphocyte receptors. Recently, clinical application of sequence-based HLA typing has uncovered an unprecedented number of novel HLA class I alleles. Here we define the nature and extent of the variation in 3,489 HLA-A, 4,356 HLA-B and 3,111 HLA-C alleles. This analysis required development of suites of methods, having general applicability, for comparing and analyzing large numbers of homologous sequences. At least three amino-acid substitutions are present at every position in the polymorphic α1 and α2 domains of HLA-A, -B and -C...
June 26, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28650485/neuroblastoma-is-composed-of-two-super-enhancer-associated-differentiation-states
#3
Tim van Groningen, Jan Koster, Linda J Valentijn, Danny A Zwijnenburg, Nurdan Akogul, Nancy E Hasselt, Marloes Broekmans, Franciska Haneveld, Natalia E Nowakowska, Johannes Bras, Carel J M van Noesel, Aldo Jongejan, Antoine H van Kampen, Linda Koster, Frank Baas, Lianne van Dijk-Kerkhoven, Margriet Huizer-Smit, Maria C Lecca, Alvin Chan, Arjan Lakeman, Piet Molenaar, Richard Volckmann, Ellen M Westerhout, Mohamed Hamdi, Peter G van Sluis, Marli E Ebus, Jan J Molenaar, Godelieve A Tytgat, Bart A Westerman, Johan van Nes, Rogier Versteeg
Neuroblastoma and other pediatric tumors show a paucity of gene mutations, which has sparked an interest in their epigenetic regulation. Several tumor types include phenotypically divergent cells, resembling cells from different lineage development stages. It has been proposed that super-enhancer-associated transcription factor (TF) networks underlie lineage identity, but the role of these enhancers in intratumoral heterogeneity is unknown. Here we show that most neuroblastomas include two types of tumor cells with divergent gene expression profiles...
June 26, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28650455/clinical-impact-of-nk-cell-reconstitution-after-reduced-intensity-conditioned-unrelated-cord-blood-transplantation-in-patients-with-acute-myeloid-leukemia-analysis-of-a-prospective-phase-ii-multicenter-trial-on-behalf-of-the-soci%C3%A3-t%C3%A3-fran%C3%A3-aise-de-greffe-de
#4
S Nguyen, A Achour, L Souchet, S Vigouroux, P Chevallier, S Furst, A Sirvent, J-O Bay, G Socié, P Ceballos, A Huynh, J Cornillon, S Francois, F Legrand, I Yakoub-Agha, G Michel, N Maillard, G Margueritte, S Maury, M Uzunov, C-E Bulabois, M Michallet, L Clement, C Dauriac, K Bilger, J Lejeune, V Béziat, V Rocha, B Rio, S Chevret, V Vieillard
Unrelated cord blood transplantation (UCBT) after a reduced intensity conditioning regimen (RIC) has extended the use of UCB in elderly patients and those with co-morbidities without an HLA-identical donor, although post-transplant relapse remains a concern in high-risk acute myeloid leukemia (AML) patients. HLA incompatibilities between donor and recipient might enhance the alloreactivity of natural killer (NK) cells after allogeneic hematopoietic stem-cell transplantation (HSCT). We studied the reconstitution of NK cells and KIR-L mismatch in 54 patients who underwent a RIC-UCBT for AML in CR in a prospective phase II clinical trial...
June 26, 2017: Bone Marrow Transplantation
https://www.readbyqxmd.com/read/28649645/a-functionally-significant-snp-in-tp53-and-breast-cancer-risk-in-african-american-women
#5
Maureen E Murphy, Song Liu, Song Yao, Dezheng Huo, Qin Liu, Sonia C Dolfi, Kim M Hirshfield, Chi-Chen Hong, Qiang Hu, Andrew F Olshan, Temidayo O Ogundiran, Clement Adebamowo, Susan M Domchek, Katherine L Nathanson, Barbara Nemesure, Stefan Ambs, William J Blot, Ye Feng, Esther M John, Leslie Bernstein, Wei Zheng, Jennifer J Hu, Regina G Ziegler, Sarah Nyante, Sue A Ingles, Michael F Press, Sandra L Deming, Jorge L Rodriguez-Gil, Christopher A Haiman, Olufunmilayo I Olopade, Kathryn L Lunetta, Julie R Palmer, Christine B Ambrosone
A coding region polymorphism exists in the TP53 gene (Pro47Ser; rs1800371) in individuals of African descent, which reduces p53 tumor suppressor function in a mouse model. It has been unclear whether this functionally significant polymorphism alters cancer risk in humans. This analysis included 6907 women with breast cancer and 7644 controls from the AMBER, ROOT, and AABC consortia. We used multivariable logistic regression to estimate associations between the TP53 Pro47Ser allele and overall breast cancer risk...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/28649637/the-adaptation-of-escherichia-coli-cells-grown-in-simulated-microgravity-for-an-extended-period-is-both-phenotypic-and-genomic
#6
Madhan R Tirumalai, Fathi Karouia, Quyen Tran, Victor G Stepanov, Rebekah J Bruce, C Mark Ott, Duane L Pierson, George E Fox
Microorganisms impact spaceflight in a variety of ways. They play a positive role in biological systems, such as waste water treatment but can be problematic through buildups of biofilms that can affect advanced life support. Of special concern is the possibility that during extended missions, the microgravity environment will provide positive selection for undesirable genomic changes. Such changes could affect microbial antibiotic sensitivity and possibly pathogenicity. To evaluate this possibility, Escherichia coli (lac plus) cells were grown for over 1000 generations on Luria Broth medium under low-shear modeled microgravity conditions in a high aspect rotating vessel...
2017: NPJ Microgravity
https://www.readbyqxmd.com/read/28649265/model-free-conditional-independence-feature-screening-for-ultrahigh-dimensional-data
#7
Luheng Wang, Jingyuan Liu, Yong Li, Runze Li
Feature screening plays an important role in ultrahigh dimensional data analysis. This paper is concerned with conditional feature screening when one is interested in detecting the association between the response and ultrahigh dimensional predictors (e.g., genetic makers) given a low-dimensional exposure variable (such as clinical variables or environmental variables). To this end, we first propose a new index to measure conditional independence, and further develop a conditional screening procedure based on the newly proposed index...
March 2017: Science China. Mathematics
https://www.readbyqxmd.com/read/28648301/associations-of-early-kidney-disease-with-brain-magnetic-resonance-imaging-and-cognitive-function-in-african-americans-with-type-2-diabetes-mellitus
#8
Barry I Freedman, Kaycee M Sink, Christina E Hugenschmidt, Timothy M Hughes, Jeff D Williamson, Christopher T Whitlow, Nicholette D Palmer, Michael E Miller, Laura C Lovato, Jianzhao Xu, S Carrie Smith, Lenore J Launer, Joshua I Barzilay, Robert M Cohen, Mark D Sullivan, R Nick Bryan, Benjamin C Wagner, Donald W Bowden, Joseph A Maldjian, Jasmin Divers
BACKGROUND: Relationships between early kidney disease, neurocognitive function, and brain anatomy are poorly defined in African Americans with type 2 diabetes mellitus (T2DM). STUDY DESIGN: Cross-sectional associations were assessed between cerebral anatomy and cognitive performance with estimated glomerular filtration rate (eGFR) and urine albumin-creatinine ratio (UACR) in African Americans with T2DM. SETTING & PARTICIPANTS: African Americans with cognitive testing and cerebral magnetic resonance imaging (MRI) in the African American-Diabetes Heart Study Memory in Diabetes (AA-DHS MIND; n=512; 480 with MRI) and Action to Control Cardiovascular Risk in Diabetes (ACCORD) MIND (n=484; 104 with MRI) studies...
June 22, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28647998/-analysis-of-optical-coherence-tomography-of-early-and-very-late-stent-restenosis-after-drug-eluting-stent-implantation
#9
Z J Liu, B Shi, C C Deng, G X Xu, R Z Zhao, C Y Shen, Z L Wang, H L Liu
Objective: Using optical coherence tomography (OCT) to analyze the morphological characteristics of lesions between early in-stent restenosis (E-ISR) and very late in-stent restenosis (VL-ISR) after drug-eluting stents (DES) implantation. Methods: In 25 patients (DES) with ISR, OCT images were acquired before percutaneous coronary intervention (PCI), the morphological characteristics of E-ISR (<1 years, n=14) and VL-ISR (>3 years, n=11) were compared.The quantitative and qualitative analysis of the entire stent and the minimum lumen area (MLA) site were carried out respectively...
June 20, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28647684/dynamics-of-helicobacter-pylori-infection-as-a-determinant-of-progression-of-gastric-precancerous-lesions-16-year-follow-up-of-an-eradication-trial
#10
Robertino M Mera, Luis E Bravo, M Constanza Camargo, Juan C Bravo, Alberto G Delgado, Judith Romero-Gallo, Maria C Yepez, José L Realpe, Barbara G Schneider, Douglas R Morgan, Richard M Peek, Pelayo Correa, Keith T Wilson, M Blanca Piazuelo
OBJECTIVE: To evaluate the long-term effect of cumulative time exposed to Helicobacter pylori infection on the progression of gastric lesions. DESIGN: 795 adults with precancerous gastric lesions were randomised to receive anti-H. pylori treatment at baseline. Gastric biopsies were obtained at baseline and at 3, 6, 12 and 16 years. A total of 456 individuals attended the 16-year visit. Cumulative time of H. pylori exposure was calculated as the number of years infected during follow-up...
June 24, 2017: Gut
https://www.readbyqxmd.com/read/28647681/daily-associations-between-cannabis-motives-and-consumption-in-emerging-adults
#11
Erin E Bonar, Jason E Goldstick, R Lorraine Collins, James A Cranford, Rebecca M Cunningham, Stephen T Chermack, Frederic C Blow, Maureen A Walton
BACKGROUND: Increasing rates of cannabis use among emerging adults is a growing public health problem. Intensive longitudinal data can provide information on proximal motives for cannabis use, which can inform interventions to reduce use among emerging adults. METHOD: As part of a larger longitudinal study, patients aged 18-25 years (N=95) recruited from an urban Emergency Department completed daily text message assessments of risk behaviors for 28days, including daily cannabis quantity and motives...
June 15, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28647145/a-new-peak-shape-analysis-approach-detection-and-quantitation-of-concurrent-fronting-tailing-and-their-effect-on-asymmetry-measurements
#12
M Farooq Wahab, Darshan C Patel, Daniel W Armstrong
Most peak shapes obtained in separation science depart from linearity for various reasons such as thermodynamic, kinetic, or flow based effects. An indication of the nature of asymmetry often helps in problem solving e.g. in column overloading, slurry packing, buffer mismatch, and extra-column band broadening. However, existing tests for symmetry/asymmetry only indicate the skewness in excess (tail or front) and not the presence of both. Two simple graphical approaches are presented to analyze peak shapes typically observed in gas, liquid, and supercritical fluid chromatography as well as capillary electrophoresis...
June 13, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28646934/timing-interval-from-peri-prostatic-block-to-biopsy-impacts-procedural-pain
#13
Ram A Pathak, David D Thiel, Alexander Parker, Michael G Heckman, Julia E Crook, Nancy N Diehl, Andrea Tavlarides, Scott W Alford, Todd C Igel
INTRODUCTION: To compare visual analog scale (VAS) pain scores between patients with a 2-minute versus 10-minute delay of peri-prostatic lidocaine injection prior to transrectal ultrasound-guided prostate biopsies (TRUS-bx). MATERIALS AND METHODS: Eighty patients who underwent standard 12-core TRUS-bx by a single surgeon were prospectively randomized into four different treatment arms: bibasilar injection with a 2-minute delay, bibasilar injection plus a single apical injection with a 2-minute delay, bibasilar injection with a 10-minute delay, and bibasilar injection plus a single apical injection with a 10-minute delay...
June 2017: Canadian Journal of Urology
https://www.readbyqxmd.com/read/28646875/genome-analysis-of-diploscapter-coronatus-insights-into-molecular-peculiarities-of-a-nematode-with-parthenogenetic-reproduction
#14
Hideaki Hiraki, Hiroshi Kagoshima, Christopher Kraus, Philipp H Schiffer, Yumiko Ueta, Michael Kroiher, Einhard Schierenberg, Yuji Kohara
BACKGROUND: Sexual reproduction involving the fusion of egg and sperm is prevailing among eukaryotes. In contrast, the nematode Diploscapter coronatus, a close relative of the model Caenorhabditis elegans, reproduces parthenogenetically. Neither males nor sperm have been observed and some steps of meiosis are apparently skipped in this species. To uncover the genomic changes associated with the evolution of parthenogenesis in this nematode, we carried out a genome analysis. RESULTS: We obtained a 170 Mbp draft genome in only 511 scaffolds with a N50 length of 1 Mbp...
June 24, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28646859/comparison-of-different-nat-assays-for-the-detection-of-microorganisms-belonging-to-the-class-mollicutes
#15
O Vega-Orellana, J B Poveda, R S Rosales, J M Bradbury, C G Poveda, L E Mederos-Iriarte, M M Tavío, A S Ramírez
BACKGROUND: Mollicutes detection can be cumbersome due to their slow growth in vitro. For this reason, the use of DNA based on generic molecular tests represents an alternative for rapid, sensitive and specific detection of these microorganism. For this reason, six previously described nucleic acid testing assays were compared to evaluate their ability to detect microorganisms belonging to the class Mollicutes. METHODS: A panel of 61 mollicutes, including representatives from the Mycoplasma, Acholeplasma, Mesoplasma, Spiroplasma and Ureaplasma genus, were selected to evaluate the sensitivity and specificity of these assays...
June 24, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28646369/impacts-of-a-temporary-urban-pop-up-park-on-physical-activity-and-other-individual-and-community-level-outcomes
#16
Deborah Salvo, Jorge A Banda, Jylana L Sheats, Sandra J Winter, Daniela Lopes Dos Santos, Abby C King
Physical inactivity is a known risk factor for obesity and a number of chronic diseases. Modifying the physical features of neighborhoods to provide residents with equitable and convenient access to spaces for physical activity (PA) is a promising strategy for promoting PA. Public urban recreation spaces (e.g., parks) play an important role in promoting PA and are potentially an important neighborhood element for optimizing social capital and liveability in cities. Most studies examining the effects of park availability and use on PA have focused on traditional, permanent parks...
June 23, 2017: Journal of Urban Health: Bulletin of the New York Academy of Medicine
https://www.readbyqxmd.com/read/28645428/cost-effectiveness-of-laparoscopy-as-diagnostic-tool-before-primary-cytoreductive-surgery-in-ovarian-cancer
#17
Roelien van de Vrie, Hannah S van Meurs, Marianne J Rutten, Christiana A Naaktgeboren, Brent C Opmeer, Katja N Gaarenstroom, Toon van Gorp, Henk G Ter Brugge, Ward Hofhuis, Henk W R Schreuder, Henriette J G Arts, Petra L M Zusterzeel, Johanna M A Pijnenborg, Maarten van Haaften, Mirjam J A Engelen, Erik A Boss, M Caroline Vos, Kees G Gerestein, Eltjo M J Schutter, Gemma G Kenter, Patrick M M Bossuyt, Ben Willem Mol, Marrije R Buist
OBJECTIVE: To evaluate the cost-effectiveness of a diagnostic laparoscopy prior to primary cytoreductive surgery to prevent futile primary cytoreductive surgery (i.e. leaving >1cm residual disease) in patients suspected of advanced stage ovarian cancer. METHODS: An economic analysis was conducted alongside a randomized controlled trial in which patients suspected of advanced stage ovarian cancer who qualified for primary cytoreductive surgery were randomized to either laparoscopy or primary cytoreductive surgery...
June 20, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28645369/sequencing-dna-for-the-oxidatively-modified-base-8-oxo-7-8-dihydroguanine
#18
Aaron M Fleming, Yun Ding, Cynthia J Burrows
The DNA base guanine (G) can be oxidatively modified to 8-oxo-7,8-dihydroguanine (OG). Extraction of genomic DNA followed by nuclease digestion and mass spectrometry analysis has found OG is present at background levels of ~1 out of 10(6) Gs; however, this approach cannot determine the locations for the OGs in the genome. Thus, in this methods report, we outline three different methods (A, B, and C) for sequencing OG in DNA. Method A sequences OG by utilizing the base excision repair pathway to delete the OG nucleotide from the DNA that is then detected by Sanger sequencing as a deletion signature...
2017: Methods in Enzymology
https://www.readbyqxmd.com/read/28644961/bisphenol-a-and-other-environmental-risk-factors-for-prostate-cancer-in-hong-kong
#19
Lap Ah Tse, Priscilla Ming Yi Lee, Wing Ming Ho, Augustine Tsan Lam, Man Kei Lee, Simon Siu Man Ng, Yonghua He, Ka-Sing Leung, Jennifer C Hartle, Howard Hu, Haidong Kan, Feng Wang, Chi Fai Ng
BACKGROUND: Environmental exposures are contributing factors to prostate cancer etiology, but these remain unclear. We aimed to document the associations between environmental risk factors and prostate cancer in Chinese, with special reference to bisphenol A (BPA). METHODS: We recruited 431 newly diagnosed prostate cancer cases and 402 age-matched controls from Prince of Wales Hospital in Hong Kong. We obtained each participant's clinical data and epidemiological information on chronic BPA exposure and other environmental risk factors (e...
June 20, 2017: Environment International
https://www.readbyqxmd.com/read/28644101/safety-and-cost-efficiency-of-a-restrictive-transfusion-protocol-in-patients-with-traumatic-brain-injury
#20
Laura B Ngwenya, Catherine G Suen, Phiroz E Tarapore, Geoffrey T Manley, Michael C Huang
OBJECTIVE Blood loss and moderate anemia are common in patients with traumatic brain injury (TBI). However, despite evidence of the ill effects and expense of the transfusion of packed red blood cells, restrictive transfusion practices have not been universally adopted for patients with TBI. At a Level I trauma center, the authors compared patients with TBI who were managed with a restrictive (target hemoglobin level > 7 g/dl) versus a liberal (target hemoglobin level > 10 g/dl) transfusion protocol. This study evaluated the safety and cost-efficiency of a hospital-wide change to a restrictive transfusion protocol...
June 23, 2017: Journal of Neurosurgery
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