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https://www.readbyqxmd.com/read/28098136/exome-and-genome-sequencing-of-nasopharynx-cancer-identifies-nf-%C3%AE%C2%BAb-pathway-activating-mutations
#1
Yvonne Y Li, Grace T Y Chung, Vivian W Y Lui, Ka-Fai To, Brigette B Y Ma, Chit Chow, John K S Woo, Kevin Y Yip, Jeongsun Seo, Edwin P Hui, Michael K F Mak, Maria Rusan, Nicole G Chau, Yvonne Y Y Or, Marcus H N Law, Peggy P Y Law, Zoey W Y Liu, Hoi-Lam Ngan, Pok-Man Hau, Krista R Verhoeft, Peony H Y Poon, Seong-Keun Yoo, Jong-Yeon Shin, Sau-Dan Lee, Samantha W M Lun, Lin Jia, Anthony W H Chan, Jason Y K Chan, Paul B S Lai, Choi-Yi Fung, Suet-Ting Hung, Lin Wang, Ann Margaret V Chang, Simion I Chiosea, Matthew L Hedberg, Sai-Wah Tsao, Andrew C van Hasselt, Anthony T C Chan, Jennifer R Grandis, Peter S Hammerman, Kwok-Wai Lo
Nasopharyngeal carcinoma (NPC) is an aggressive head and neck cancer characterized by Epstein-Barr virus (EBV) infection and dense lymphocyte infiltration. The scarcity of NPC genomic data hinders the understanding of NPC biology, disease progression and rational therapy design. Here we performed whole-exome sequencing (WES) on 111 micro-dissected EBV-positive NPCs, with 15 cases subjected to further whole-genome sequencing (WGS), to determine its mutational landscape. We identified enrichment for genomic aberrations of multiple negative regulators of the NF-κB pathway, including CYLD, TRAF3, NFKBIA and NLRC5, in a total of 41% of cases...
January 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28095451/comparing-human-metapneumovirus-and-respiratory-syncytial-virus-viral-co-detections-genotypes-and-risk-factors-for-severe-disease
#2
Nina Moe, Sidsel Krokstad, Inger Heimdal Stenseng, Andreas Christensen, Lars Høsøien Skanke, Kari Ravndal Risnes, Svein Arne Nordbø, Henrik Døllner
BACKGROUND: It is unclarified as to whether viral co-detection and human metapneumovirus (HMPV) genotypes relate to clinical manifestations in children with HMPV and lower respiratory tract infection (LRTI), and if the clinical course and risk factors for severe LRTI differ between HMPV and respiratory syncytial virus (RSV). METHODS: We prospectively enrolled hospitalized children aged <16 years with LRTI from 2006 to 2015. Children were clinically examined, and nasopharyngeal aspirates were analyzed using semi-quantitative, real-time polymerase chain reaction tests for HMPV, RSV and 17 other pathogens...
2017: PloS One
https://www.readbyqxmd.com/read/28093275/reverse-transcription-loop-mediated-isothermal-amplification-for-rapid-detection-of-respiratory-syncytial-virus-directly-from-nasopharyngeal-swabs
#3
Johannes Hoos, Rebecca Marie Peters, Julia Tabatabai, Jürgen Grulich-Henn, Paul Schnitzler, Johannes Pfeil
Respiratory syncytial virus (RSV) is a common cause of lower respiratory tract infection in young infants and a major cause of nosocomial infection in pediatric care. Currently available RSV point-of-care tests are of limited sensitivity and relatively expensive. We developed and evaluated a novel RSV rapid test for use at point-of-care, based on reverse-transcription loop-mediated isothermal amplification (RT-LAMP) for direct testing of nasopharyngeal swab specimens. RT-LAMP can detect RSV within 30min, without the need for RNA extraction...
January 13, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28093081/the-most-important-questions-in-cancer-research-and-clinical-oncology-question-1-could-the-vertical-transmission-of-human-papilloma-virus-hpv-infection-account-for-the-cause-characteristics-and-epidemiology-of-hpv-positive-oropharyngeal-carcinoma-non-smoking
#4
Joseph T S Wee, Sharon Shuxian Poh
Specific research foci: (1) Mouse models of gamma-herpes virus-68 (γHV-68) and polyomavirus (PyV) infections during neonatal versus adult life. (2) For human papilloma virus (HPV)-positive oropharyngeal carcinoma (OPC)-(a) Asking the question: Is oral sex a powerful carcinogen? (b) Examining the evidence for the vertical transmission of HPV infection. (c) Examining the relationship between HPV and Epstein-Barr virus (EBV) infections and nasopharyngeal cancer (NPC) in West European, East European, and East Asian countries...
January 16, 2017: Chinese Journal of Cancer
https://www.readbyqxmd.com/read/28091776/nasal-masks-or-binasal-prongs-for-delivering-continuous-positive-airway-pressure-in-preterm-neonates-a-randomised-trial
#5
Aparna Chandrasekaran, Anu Thukral, M Jeeva Sankar, Ramesh Agarwal, Vinod K Paul, Ashok K Deorari
: The objective of this study was to compare the efficacy and safety of continuous positive airway pressure (CPAP) delivered using nasal masks with binasal prongs. We randomly allocated 72 neonates between 26 and 32 weeks gestation to receive bubble CPAP by either nasal mask (n = 37) or short binasal prongs (n = 35). Primary outcome was mean FiO2 requirement at 6, 12 and 24 h of CPAP initiation and the area under curve (AUC) of FiO2 against time during the first 24 h (FiO2 AUC0-24)...
January 13, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28091565/-18-f-flt-and-18-f-fdg-pet-ct-in-predicting-response-to-chemoradiotherapy-in-nasopharyngeal-carcinoma-preliminary-results
#6
Shi Qi, Yang Zhongyi, Zhang Yingjian, Hu Chaosu
The purpose of this study was to explore the feasibility of (18)F-Fluorothymidine ((18)F-FLT) and (18)F-Fluorodeoxyglucose ((18)F-FDG) positron emission tomography/computed tomography (PET/CT) in predicting treatment response of nasopharyngeal carcinoma (NPC). Patients with NPC of Stage II-IVB were prospectively enrolled, receiving 2 cycles of neoadjuvant chemotherapy (NACT), followed by concurrent chemoradiotherapy. Each patient underwent pretreatment and post-NACT FLT PET/CT and FDG PET/CT. Standard uptake values (SUV) and tumor volume were measured...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28088924/microbiology-of-otitis-media-in-indigenous-australian-children-review
#7
J Jervis-Bardy, A S Carney, R Duguid, A J Leach
OBJECTIVES: To review research addressing the polymicrobial aetiology of otitis media in Indigenous Australian children in order to identify research gaps and inform best practice in effective prevention strategies and therapeutic interventions. METHODS: Literature review. RESULTS: Studies of aspirated middle-ear fluid represented a minor component of the literature reviewed. Most studies relied upon specimens from middle-ear discharge or the nasopharynx...
January 16, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28088665/influenza-a-h1n1-pdm-2009-and-influenza-b-virus-co-infection-in-hospitalized-and-non-hospitalized-patients-during-the-2015-2016-epidemic-season-in-israel
#8
Rakefet Pando, Yaron Drori, Nehemya Friedman, Aharona Glatman-Freedman, Hanna Sefty, Tamar Shohat, Ella Mendelson, Musa Hindiyeh, Michal Mandelboim
BACKGROUND: Influenza A and B viruses co-infections are rare events and mainly occurred in immunocompromised patients. OBJECTIVES: In this study we report an unusually high occurrence of influenza A (H1N1)pdm 2009 and influenza B virus co-infections during the epidemic year 2015-2016. STUDY DESIGN: Nasopharyngeal swabs were collected from 1919 patients visiting 26 outpatient clinics distributed throughout Israel and presenting with influenza-like illness...
January 6, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28088217/surgical-treatment-of-upper-cervical-spine-metastases-a-retrospective-study-of-39-cases
#9
Jian Yang, Qi Jia, Dongyu Peng, Wei Wan, Nanzhe Zhong, Yan Lou, Xiaopan Cai, Zhipeng Wu, Chenglong Zhao, Xinghai Yang, Jianru Xiao
BACKGROUND: The surgical treatment of upper cervical spine metastases are controversial up to now. By summarizing and analyzing the clinical data of the upper cervical spine involved metastases treated surgically in our center, we mainly aimed to investigate the surgical decisions and outcomes so as to provide more references for the clinical treatment of this special and complex spine metastasis. METHODS: We evaluated the patients' pre- and post-operative neck pain and neurologic function with paired t test, followed by the statistics of the selection of surgical approaches, ways of reconstruction, and related complications...
January 14, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28087146/pcv13-vaccinated-children-still-carrying-pcv13-additional-serotypes-show-similar-carriage-density-to-a-control-group-of-pcv7-vaccinated-children
#10
Ron Dagan, Christine Juergens, James Trammel, Scott Patterson, David Greenberg, Noga Givon-Lavi, Nurith Porat, William C Gruber, Daniel A Scott
BACKGROUND: In addition to reducing vaccine-type nasopharyngeal carriage rates, pneumococcal conjugate vaccines (PCVs) may decrease carriage density in vaccinated individuals still carrying vaccine serotypes. However, reduction of carriage density has not been systematically studied. This study compared the effect of PCV13 versus PCV7 on carriage density of the serotypes in PCV13 that are not included in PCV7. METHODS: This randomized, double-blind study was conducted in southern Israel and included Jewish and Bedouin subjects...
January 10, 2017: Vaccine
https://www.readbyqxmd.com/read/28081444/host-to-host-transmission-of-the-pneumococcus-new-victims-of-a-toxic-relationship
#11
Claudia Trappetti, James C Paton
Host-to-host transmission is critical for survival of the human-adapted bacterium Streptococcus pneumoniae. In this issue of Cell Host & Microbe, Zafar et al. (2017) show that transmission is dependent on nasopharyngeal inflammation elicited by the toxin pneumolysin, causing increased shedding and enhanced survival of the bacterium in the environment.
January 11, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28081138/overexpression-of-kinesin-family-member-20a-correlates-with-disease-progression-and-poor-prognosis-in-human-nasopharyngeal-cancer-a-retrospective-analysis-of-105-patients
#12
Sai-Lan Liu, Huan-Xin Lin, Fang Qiu, Wei-Jing Zhang, Chun-Hao Niu, Wen Wen, Xiao-Qing Sun, Li-Ping Ye, Xian-Qiu Wu, Chu-Yong Lin, Li-Bing Song, Ling Guo
BACKGROUND: Numerous studies have shown Kinesin family member 20A (KIF20A) may play a critical role in the development and progression of cancer. However, the clinical value of KIF20A in nasopharyngeal carcinoma (NPC) is unknown. Here, we investigated the expression pattern of KIF20A in NPC and its correlation with clinicopathological features of patients. METHODS: Real-time PCR and Western blotting were used to quantify KIF20A expression in NPC cell lines and clinical specimens compared with normal controls...
2017: PloS One
https://www.readbyqxmd.com/read/28079815/morning-breathing-exercises-prolong-lifespan-by-improving-hyperventilation-in-people-living-with-respiratory-cancer
#13
Wei-Jie Wu, Shan-Huan Wang, Wei Ling, Li-Jun Geng, Xiao-Xi Zhang, Lan Yu, Jun Chen, Jiang-Xi Luo, Hai-Lu Zhao
Disturbance of oxygen-carbon dioxide homeostasis has an impact on cancer. Little is known about the effect of breath training on cancer patients. Here we report our 10-year experience with morning breathing exercises (MBE) in peer-support programs for cancer survivors.We performed a cohort study to investigate long-term surviving patients with lung cancer (LC) and nasopharyngeal cancer (NPC) who practiced MBE on a daily basis. End-tidal breath holding time (ETBHT) after MBE was measured to reflect improvement in alveolar O2 pressure and alveolar CO2 pressure capacity...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28078787/targeting-nasopharyngeal-carcinoma-by-artesunate-through-inhibiting-akt-mtor-and-inducing-oxidative-stress
#14
Qin Li, Wei Ni, Zhifeng Deng, Minghe Liu, Lazhi She, Qiong Xie
Drug repurposing has become an alternative therapeutic strategy for cancer treatment given the known pharmacokinetics and toxicity. The inhibitory effects of artesunate have been reported in various cancers. In this work, we investigated the effects of artesunate in nasopharyngeal carcinoma (NPC). We demonstrate that artesunate significantly inhibits proliferation via arresting NPC cells at G2/M phase. It also induces apoptosis through caspase-dependent and mitochondria-independent pathways in multiple NPC cell lines...
January 11, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28077791/carcinoma-risk-variant-of-ebna1-deregulates-epstein-barr-virus-episomal-latency
#15
Jayaraju Dheekollu, Kimberly Malecka, Andreas Wiedmer, Henri-Jacques Delecluse, Alan Ks Chiang, Dario C Altieri, Troy E Messick, Paul M Lieberman
Epstein-Barr Virus (EBV) latent infection is a causative co-factor for endemic Nasopharyngeal Carcinoma (NPC). NPC-associated variants have been identified in EBV-encoded nuclear antigen EBNA1. Here, we solve the X-ray crystal structure of an NPC-derived EBNA1 DNA binding domain (DBD) and show that variant amino acids are found on the surface away from the DNA binding interface. We show that NPC-derived EBNA1 is compromised for DNA replication and episome maintenance functions. Recombinant virus containing the NPC EBNA1 DBD are impaired in their ability to immortalize primary B-lymphocytes and suppress lytic transcription during early stages of B-cell infection...
January 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28077700/evaluation-of-alere%C3%A2-i-rsv-for-rapid-detection-of-respiratory-syncytial-virus-in-children-hospitalized-with-acute-respiratory-tract-infection
#16
Rebecca Marie Peters, Sarah Valerie Schnee, Julia Tabatabai, Paul Schnitzler, Johannes Pfeil
Alere™ i RSV is a novel rapid test which applies a nicking enzyme amplification reaction to detect respiratory syncytial virus in point-of-care settings. In this study, we evaluated the Alere™ i RSV assay by using frozen nasopharyngeal swab samples that were collected in viral transport medium from children hospitalized with acute respiratory tract infection during winter season 2015/2016. Alere™ i RSV assay test results were compared to Altona® RealStar RSV real-time reverse transcription PCR (RT-PCR)...
January 11, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28077093/evaluation-of-the-point-of-care-becton-dickinson-veritor%C3%A2-rapid-influenza-diagnostic-test-in-kenya-2013-2014
#17
Linus K Ndegwa, Gideon Emukule, Timothy M Uyeki, Eunice Mailu, Sandra S Chaves, Marc-Alain Widdowson, Bandika V Lewa, Francis K Muiruri, Peter Omoth, Barry Fields, Joshua A Mott
BACKGROUND: We evaluated the performance of the Becton Dickinson Veritor™ System Flu A + B rapid influenza diagnostic test (RIDT) to detect influenza viruses in respiratory specimens from patients enrolled at five surveillance sites in Kenya, a tropical country where influenza seasonality is variable. METHODS: Nasal swab (NS) and nasopharyngeal (NP)/oropharyngeal (OP) swabs were collected from patients with influenza like illness and/or severe acute respiratory infection...
January 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28076666/the-global-incidence-of-lip-oral-cavity-and-pharyngeal-cancers-by-subsite-in-2012
#18
Kevin D Shield, Jacques Ferlay, Ahmedin Jemal, Rengaswamy Sankaranarayanan, Anil K Chaturvedi, Freddie Bray, Isabelle Soerjomataram
By using data from the International Agency for Research on Cancer publication Cancer Incidence in 5 Continents and GLOBOCAN, this report provides the first consolidated global estimation of the subsite distribution of new cases of lip, oral cavity, and pharyngeal cancers by country, sex, and age for the year 2012. Major geographically based, sex-based, and age-based variations in the incidence of lip, oral cavity, and pharyngeal cancers by subsite were observed. Lip cancers were highly frequent in Australia (associated with solar radiation) and in central and eastern Europe (associated with tobacco smoking)...
January 2017: CA: a Cancer Journal for Clinicians
https://www.readbyqxmd.com/read/28075468/microrna-138-5p-controls-sensitivity-of-nasopharyngeal-carcinoma-to-radiation-by-targeting-eif4ebp1
#19
Wei Gao, Jacky Wei Kei Lam, John Zeng-Hong Li, Si-Qi Chen, Raymond King-Yin Tsang, Jimmy Yu-Wai Chan, Thian-Sze Wong
Radiation therapy is the standard treatment for primary nasopharyngeal carcinoma (NPC). MicroRNA regulates cancer responsiveness to radiation therapy by controlling the genes involved in radiation responses. Recent studies suggested that downregulation of microRNA-138-5p was clinically significant in NPC. Here, we evaluated the effect of miR-138-5p on radiosensitivity of NPC cells and explored the underlying mechanisms by identifying its target gene that impacted sensitivity to radiation. Our results revealed that overexpression of miR-138-5p reduced the ability to form colonies, inhibited proliferation, and enhanced radiation-induced DNA damage and autophagy in NPC cells upon radiation treatment...
February 2017: Oncology Reports
https://www.readbyqxmd.com/read/28072501/nasopharyngeal-carriage-of-respiratory-pathogens-in-warao-amerindians-significant-relationship-with-stunting
#20
Lilly M Verhagen, Meyke Hermsen, Ismar A Rivera-Olivero, María Carolina Sisco, Marien I de Jonge, Peter W M Hermans, Jacobus H de Waard
OBJECTIVE: To assess risk factors for nasopharyngeal carriage of pathogens in geographically isolated Warao Amerindians in Venezuela. METHODS: In this point prevalence survey, nasopharyngeal swabs were obtained from 1064 Warao Amerindians: 504 children aged 0 - 4 years, 227 children aged 5 - 10 years, and 333 caregivers. Written questionnaires were completed to obtain information on demographics and environmental risk factors. Anthropometric measurements were performed in children aged 0 - 4 years...
January 10, 2017: Tropical Medicine & International Health: TM & IH
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