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https://www.readbyqxmd.com/read/27920002/decreased-skeletal-muscle-mass-after-neoadjuvant-therapy-correlates-with-poor-prognosis-in-patients-with-esophageal-cancer
#1
Jiajia Liu, Satoru Motoyama, Yusuke Sato, Akiyuki Wakita, Yuta Kawakita, Hajime Saito, Yoshihiro Minamiya
BACKGROUND: Loss of skeletal muscle is predictive of a poor prognosis in patients with various malignant lesions. Our aim was to determine whether changes in skeletal muscle after neo-adjuvant therapy (NAT) predict prognosis in patients with esophageal squamous cell carcinoma (ESCC) undergoing esophagectomy. PATIENTS AND METHODS: The cross-sectional areas of the psoas muscles were measured on computed tomographic images collected at the initial visit, preoperatively and postoperatively in 84 patients...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27919941/ectopic-myoglobin-expression-is-associated-with-a-favourable-outcome-in-head-and-neck-squamous-cell-carcinoma-patients
#2
Sebastian Meller, Anne VAN Ellen, Heidrun Gevensleben, Anne Bicker, Thomas Hankeln, Thomas A Gorr, Verena Sailer, Freya Dröge, Friederike Schröck, Friedrich Bootz, Andreas Schröck, Sven Perner, Dimo Dietrich, Glen Kristiansen
BACKGROUND/AIM: Ectopic myoglobin (MB) expression, mediated by alternative and hypoxia-inducible transcription, has recently been demonstrated in several epithelial tumours. This study aimed to examine the expression of MB in hormone-independent head and neck squamous cell carcinomas (HNSCCs). PATIENTS AND METHODS: Using imunohistochemistry, ectopic MB expression was analyzed on tissue microarrays (TMAs) of 524 patients with localized and locally advanced primary and recurrent HNSCC who had undergone surgical treatment with curative intent...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27919693/performance-evaluation-of-xpert-mtb-rif-in-a-moderate-tuberculosis-incidence-compared-with-taqman-mtb-and-trcrapid-m-tb
#3
Kazunari Tsuyuguchi, Hideaki Nagai, Kenji Ogawa, Tomoshige Matsumoto, Kozo Morimoto, Akiko Takaki, Satoshi Mitarai
Xpert MTB/RIF is an automated nucleic acid amplification test (NAT) that can detect the presence of Mycobacterium tuberculosis complex (MTC) in clinical specimens as well as rifampicin (RIF) resistance resulting from rpoB mutation. Despite its high sensitivity and specificity for diagnosing tuberculosis (TB) with or without RIF resistance, the clinical performance of the test is variable. In this study, we evaluated the performance of Xpert MTB/RIF in a setting of moderate TB burden and high medical resources...
December 2, 2016: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/27918917/activation-cross-sections-of-deuteron-induced-reactions-on-silver-in-the-33-50mev-energy-range
#4
F Ditrói, F Tárkányi, S Takács, A Hermanne, A V Ignatyuk
Excitation functions were measured for the (nat)Ag(d,x)(105,104)Cd, (110)(m,108m,106m,105g,104g)Ag and (101)Pd, (105,101m)Rh reactions over the energy range 33-50MeV by using the stacked foil activation technique and subsequent high-resolution gamma-spectrometry. We present the first experimental cross section data above 40MeV for all of these reactions and the first experimental cross section data for (nat)Ag(d,x)(108m,104g)Ag and (105,103)Rh. The experimental data are compared with results of the model calculations performed with the ALICE-D, EMPIRE-D theoretical nuclear reaction model codes and with the TALYS code results as available in the TENDL-2014 and -2015 on-line libraries...
November 27, 2016: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/27917495/usefulness-of-nucleic-acid-testing-to-reduce-risk-of-hepatitis-b-virus-transfusion-transmitted-infection-in-argentina-high-rate-of-recent-infections
#5
Sebastián Blanco, Marcos César Balangero, Mildre Cledy Valle, Oscar Luis Montini, Luis Horacio Carrizo, Sandra Verónica Gallego
BACKGROUND: Results from 10-year experience using nucleic acid test (NAT) screening in a blood bank of Córdoba are presented, showing the first data on prevalence of recent hepatitis B virus (HBV) infections and occult HBV infections (OBIs) in Argentina. STUDY DESIGN AND METHODS: Molecular screening was performed by COBAS AmpliScreen human immunodeficiency virus Type 1 (HIV-1) test Version 1.5 and COBAS AmpliScreen hepatitis C virus (HCV) test Version 2.0 and COBAS TaqScreen MPX and MPX Version 2...
December 4, 2016: Transfusion
https://www.readbyqxmd.com/read/27910358/a-recoverable-gas-cell-diagnostic-for-the-national-ignition-facility
#6
A Ratkiewicz, L Berzak Hopkins, D L Bleuel, L A Bernstein, K van Bibber, W S Cassata, B L Goldblum, S Siem, C A Velsko, M Wiedeking, C B Yeamans
The high-fluence neutron spectrum produced by the National Ignition Facility (NIF) provides an opportunity to measure the activation of materials by fast-spectrum neutrons. A new large-volume gas-cell diagnostic has been designed and qualified to measure the activation of gaseous substances at the NIF. This in-chamber diagnostic is recoverable, reusable and has been successfully fielded. Data from the qualification of the diagnostic have been used to benchmark an Monte Carlo N-Particle Transport Code simulation describing the downscattered neutron spectrum seen by the gas cell...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27899377/soft-tissue-injuries-are-still-a-challenge-in-musculoskeletal-sports-and-exercise-medicine
#7
EDITORIAL
Nikos Malliaropoulos, Mourad Ghrairi, Yacine Zerguini, Nat Padhiar
No abstract text is available yet for this article.
December 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27894947/strategies-to-identify-natural-antisense-transcripts
#8
REVIEW
Yulong Sun, Dijie Li, Ru Zhang, Shang Peng, Ge Zhang, Tuanming Yang, Airong Qian
Natural antisense transcripts, originally considered as transcriptional noises arising from so-called "junk DNA", are recently recognized as important modulators for gene regulation. They are prevalent in nearly all realms of life and have been found to modulate gene expression positively or negatively. By affecting almost all stages of gene expression range from pre-transcriptional, transcriptional and post-transcriptional to translation, NATs are fundamentally involved in various biological processes. However, compared to increasing huge data from transcriptional analysis especially high-throughput sequencing technologies (such as RNA-seq), limited functional NATs (around 70) are so far reported, which hinder our advanced comprehensive understanding for this field...
November 25, 2016: Biochimie
https://www.readbyqxmd.com/read/27890915/pharmacological-evidence-a-new-therapeutic-approach-to-the-treatment-of-chronic-heart-failure-through-sur2b-kir6-1-channel-in-endothelial-cells
#9
Shang Wang, Chao-Liang Long, Jun Chen, Wen-Yu Cui, Yan-Fang Zhang, Hao Zhang, Hai Wang
Both iptakalim (Ipt) and natakalim (Nat) activate the SUR2B/Kir6.1 channel, an ATP-sensitive potassium channel (KATP) subtype, with high selectivity. In this study we investigated the therapeutic effects of Ipt and Nat against isoproterenol-induced chronic heart failure (ISO-CHF) in rats, and demonstrated a new therapeutic approach to the treatment of CHF through activation of the SUR2B/Kir6.1 channel in endothelial cells. In ISO-CHF rats, oral administration of Nat (1, 3, 9 mg·kg(-1)·d(-1)) or Ipt (3 mg·kg(-1)·d(-1)) for 60 days significantly improved cardiac dysfunction, reversed cardiac remodeling, significantly attenuated the pathological increases in BNP levels, and improved endothelial dysfunction by adjusting the balance between endothelin and NO systems...
November 28, 2016: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/27888605/natural-antisense-transcripts-are-linked-to-the-modulation-of-mitochondrial-function-and-teliospore-dormancy-in-ustilago-maydis
#10
Lauren A Ostrowski, Barry J Saville
The basidiomycete smut fungus Ustilago maydis causes common smut of corn. This disease is spread through the production of teliospores, which are thick-walled dormant structures characterized by low rates of respiration and metabolism. Teliospores are formed when the fungus grows within the plant, and the morphological steps involved in their formation have been described, but the molecular events leading to dormancy are not known. In U. maydis, natural antisense transcripts (NATs) can function to alter gene expression and many NATs have increased levels in the teliospore...
November 26, 2016: Molecular Microbiology
https://www.readbyqxmd.com/read/27883211/tissue-changes-after-ridge-preservation-with-two-xenografts-preliminary-results-from-a-multicenter-randomized-controlled-clinical-trial
#11
Antonio Barone, Paolo Toti, Alessandro Quaranta, Fortunato Alfonsi, Alessandro Cucchi, Bruno Negri, Roberto Di Felice, Saverio Marchionni, Jose' Luis Calvo-Guirado, Ugo Covani, Ulf Nannmark
OBJECTIVES: To evaluate and compare clinical and histological changes after ridge preservation procedures with those of spontaneous healing. MATERIALS_AND_METHODS: Ninety patients were enrolled in the present randomized controlled clinical trial and underwent single-tooth extraction in the premolar/molar areas. Thirty sites were grafted with collagenated cortico-cancellous (coll), 30 sites with cortical (cort) porcine bone and 30 sites underwent natural healing. Primary (vertical and horizontal bone changes after 3-month) and secondary outcomes (histomorphometric after 3 months) were evaluated at implant placement...
November 24, 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/27883133/na2-32co1-84-so4-3-as-a-new-member-of-the-alluaudite-family-of-high-voltage-sodium-battery-cathodes
#12
Debasmita Dwibedi, Ritambhara Gond, Allumolu Dayamani, Rafael B Araujo, Sudip Chakraborty, Rajeev Ahuja, Prabeer Barpanda
Electrochemical energy storage has recently seen tremendous emphasis being placed on the large-scale (power) grid storage. Sodium-ion batteries are capable of achieving this goal with economic viability. In a recent breakthrough in sodium-ion battery research, the alluaudite framework (Na2Fe2(SO4)3) has been reported, with the highest Fe(3+)/Fe(2+) redox potential (ca. 3.8 V, Barpanda, et al., Nat. Commun., 2014, 5, 4358). Exploring this high-voltage sodium insertion system, we report the discovery of Na2+2xCo2-x(SO4)3 (x = 0...
November 24, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/27882070/serological-patterns-and-molecular-characterization-of-occult-hepatitis-b-virus-infection-among-blood-donors
#13
Hong Lin, Hong Zhao, Xinyi Tang, Wenjia Hu, Nizheng Jiang, Shaowen Zhu, Chengyin Huang
BACKGROUND: Hepatitis B infections, characterized by the presence of a viral genome without detectable hepatitis B surface antigen (HBsAg; Occult hepatitis B infection [OBI]), have been reported recently. OBJECTIVES: We performed serological and molecular characterization of OBI among blood donors at Jiangsu province blood center during years 2013 and 2014. METHODS: All donor samples were routinely screened by double enzyme-linked immunosorbent assay (ELISA) for hepatitis C virus (HCV), hepatitis B virus (HBV), human immunodeficiency virus (HIV), Treponema pallidum (TP), and alanine aminotransferase (ALT)...
October 2016: Hepatitis Monthly
https://www.readbyqxmd.com/read/27881602/n-terminal-acetylation-promotes-synaptonemal-complex-assembly-in-c-elegans
#14
Jinmin Gao, Consuelo Barroso, Pan Zhang, Hyun-Min Kim, Shangtong Li, Leticia Labrador, James Lightfoot, Maxim V Gerashchenko, Vyacheslav M Labunskyy, Meng-Qiu Dong, Enrique Martinez-Perez, Monica P Colaiácovo
N-terminal acetylation of the first two amino acids on proteins is a prevalent cotranslational modification. Despite its abundance, the biological processes associated with this modification are not well understood. Here, we mapped the pattern of protein N-terminal acetylation in Caenorhabditis elegans, uncovering a conserved set of rules for this protein modification and identifying substrates for the N-terminal acetyltransferase B (NatB) complex. We observed an enrichment for global protein N-terminal acetylation and also specifically for NatB substrates in the nucleus, supporting the importance of this modification for regulating biological functions within this cellular compartment...
November 1, 2016: Genes & Development
https://www.readbyqxmd.com/read/27880749/early-diagnosis-of-hiv-infection-in-infants-one-caribbean-and-six-sub-saharan-african-countries-2011-2015
#15
Karidia Diallo, Andrea A Kim, Shirley Lecher, Dennis Ellenberger, R Suzanne Beard, Helen Dale, Mackenzie Hurlston, Molly Rivadeneira, Peter N Fonjungo, Laura N Broyles, Guoqing Zhang, Katrina Sleeman, Shon Nguyen, Steve Jadczak, Nadine Abiola, Raimi Ewetola, Jérémie Muwonga, Franck Fwamba, Christina Mwangi, Mary Naluguza, Charles Kiyaga, Isaac Ssewanyana, Deyde Varough, Domercant Wysler, David Lowrance, Frantz Jean Louis, Olbeg Desinor, Josiane Buteau, Francois Kesner, Vanessa Rouzier, Nat Segaren, Tessa Lewis, Abdoulaye Sarr, Geoffrey Chipungu, Sundeep Gupta, Daniel Singer, Reuben Mwenda, Hilary Kapoteza, Zawadi Chipeta, Nancy Knight, Sergio Carmona, William MacLeod, Gayle Sherman, Yogan Pillay, Clement B Ndongmo, Bridget Mugisa, Annie Mwila, James McAuley, Peter J Chipimo, Wezi Kaonga, Dailess Nsofwa, Davy Nsama, Fales Zulu Mwamba, Crispin Moyo, Clement Phiri, Marie-Yolande Borget, Leonard Ya-Kouadio, Abo Kouame, Christiane A Adje-Toure, John Nkengasong
Pediatric human immunodeficiency virus (HIV) infection remains an important public health issue in resource-limited settings. In 2015, 1.4 million children aged <15 years were estimated to be living with HIV (including 170,000 infants born in 2015), with the vast majority living in sub-Saharan Africa (1). In 2014, 150,000 children died from HIV-related causes worldwide (2). Access to timely HIV diagnosis and treatment for HIV-infected infants reduces HIV-associated mortality, which is approximately 50% by age 2 years without treatment (3)...
November 25, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27871814/dr-alois-huger-laying-the-foundations-for-an-integrated-insect-pathology
#16
Trevor A Jackson
Dr. rer. nat. Alois M. Huger had a long and distinguished career at the Institut für biologische Schädlingsbekämpfung (Institute for Biological Pest Control) Darmstadt, Germany, where he became one of the world's leading insect pathologists. He applied his experience and understanding of insect tissues and specialist skills in microscopy to diagnosis and elucidation of the pathology of insect diseases. During his career he discovered the Oryctes nudivirus and Bacillus thuringiensis subsp. tenebrionis, and was a member of teams unravelling amber disease in scarab beetles and the role of bacteria in parthenogenesis of parasitoids...
November 18, 2016: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/27871008/production-cross-sections-of-radioisotopes-from-3-he-particle-induced-nuclear-reactions-on-natural-titanium
#17
F Szelecsényi, Z Kovács, K Nagatsu, M-R Zhang, K Suzuki
Excitation functions were measured using the stacked-foil method for the (nat)Ti((3)He,x)(44m)Sc, (46m+g)Sc, (47)Sc, (48)Sc, (48)V and (48)Cr nuclear processes up to 68MeV. Our new cross-section data were compared with the earlier reported values as well as the evaluated theoretical predictions by means of the TALYS 1.6 code as compiled in the TENDL-2015 library. The new data show acceptable agreement with the previous experimental values in the overlapping energy regions, however only a partial agreement was found in the case of the results of the nuclear reaction model code...
January 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/27861169/thermodynamic-and-electrical-transport-investigation-of-uru2si2-x-p-x
#18
A Gallagher, K-W Chen, S K Cary, F Kametani, D Graf, T E Albrecht-Schmitt, A Shekhter, R E Baumbach
Magnetic susceptibility, electrical resistivity, and heat capacity results are reported for the chemical substitution series URu2Si2-x P x for [Formula: see text]. This study expands in detail on work recently reported in Gallagher et al (2016 Nat. Commun. 10712), which focused on the small x region of this substitution series. Measurements presented here reveal persistent hybridization between the f- and conduction electrons and strong variation of the low temperature behavior with increasing x. Hidden order and superconductivity are rapidly destroyed for [Formula: see text] and are replaced for [Formula: see text] by a region with Kondo coherence but no ordered state...
January 18, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/27857374/active-optical-alignment-of-off-axis-telescopes-based-on-nodal-aberration-theory
#19
Xiaobin Zhang, Dong Zhang, Shuyan Xu, Hongcai Ma
Our paper mainly separates the specific aberration contributions of third-order astigmatism and third-order coma from the total aberration fields, on the framework of the modified nodal aberration theory (NAT), for the perturbed off-axis telescope. Based on the derived aberration functions, two alignment models for the same off-axis two-mirror telescope are established and compared. Among them, one is based on third-order NAT, the other is based on fifth-order NAT. By comparison, it is found that the calculated perturbations based on fifth-order NAT are more accurate...
November 14, 2016: Optics Express
https://www.readbyqxmd.com/read/27853820/antiparallel-d-stable-traces-and-a-stronger-version-of-ore-problem
#20
Jernej Rus
In 2013 a novel self-assembly strategy for polypeptide nanostructure design which could lead to significant developments in biotechnology was presented in Gradišar et al. (Nat Chem Bio 9:362-366, 2013). It was since observed that a polyhedron P can be realized by interlocking pairs of polypeptide chains if its corresponding graph G(P) admits a strong trace. It was since also demonstrated that a similar strategy can also be expanded to self-assembly of designed DNA (Kočar, Nat commun 7:1-8, 2016). In this direction, in the present paper we characterize graphs which admit closed walk which traverses every edge exactly once in each direction and for every vertex v, there is no subset N of its neighbors, with [Formula: see text], such that every time the walk enters v from N, it also exits to a vertex in N...
November 16, 2016: Journal of Mathematical Biology
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