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https://www.readbyqxmd.com/read/27914264/pattern-based-sensing-of-triple-negative-breast-cancer-cells-with-dual-ligand-cofunctionalized-gold-nanoclusters
#1
Yu Tao, Mingqiang Li, Debra T Auguste
Early detection of breast cancer is a critical component in patient prognosis and establishing effective therapy regimens. Here, we developed an easily accessible yet potentially powerful sensor to detect cancer cell targets by utilizing seven dual-ligand cofunctionalized gold nanoclusters (AuNCs) as both effective cell recognition elements and signal transducers. On the basis of this AuNC multichannel sensor, we have successfully distinguished healthy, cancerous and metastatic human breast cells with excellent reproducibility and high sensitivity...
November 25, 2016: Biomaterials
https://www.readbyqxmd.com/read/27910402/towards-10-mev-resolution-the-design-of-an-ultrahigh-resolution-soft-x-ray-rixs-spectrometer
#2
Joseph Dvorak, Ignace Jarrige, Valentina Bisogni, Scott Coburn, William Leonhardt
We present the optical design of the Centurion soft X-ray resonant inelastic X-ray scattering (RIXS) spectrometer to be located on the SIX beamline at NSLS-II. The spectrometer is designed to reach a resolving power of 100 000 at 1000 eV at its best resolution. It is also designed to have continuously variable 2θ motion over a range of 112° using a custom triple rotating flange. We have analyzed several possible spectrometer designs capable of reaching the target resolution. After careful analysis, we have adopted a Hettrick-Underwood spectrometer design, with an additional plane mirror to maintain a fixed direction for the outgoing beam...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27908495/analysis-of-low-abundant-trehalose-6-phosphate-and-related-metabolites-in-medicago-truncatula-by-hydrophilic-interaction-liquid-chromatography-triple-quadrupole-mass-spectrometry
#3
Ana Teresa Mata, Tiago Filipe Jorge, João Ferreira, Maria do Rosário Bronze, Diana Branco, Pedro Fevereiro, Susana Araújo, Carla António
Trehalose-6-phosphate (T6P) is an important signaling metabolite involved in plant growth control that inhibits the sucrose nonfermenting-1-related protein kinase 1 (SnRK1), a key regulator of energy and carbon metabolism in plants. The quantification of T6P in plant tissues is fundamental to improve our understanding of sugar signaling and the links between plant growth and development in response to stress conditions. However, the almost undetectable levels of T6P together with the complex plant matrix and the presence of T6P isomers such as sucrose-6-phosphate (S6P), makes the detection of this metabolite challenging...
November 21, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27908172/design-of-a-dual-resolution-collimator-for-preclinical-cardiac-spect-with-a-stationary-triple-detector-system
#4
Stephen C Moore, Mi-Ae Park, Zhe Liu, Morgan C Lyon, Lindsay C Johnson, Victor H Lushear, James G Westberg, Scott D Metzler
PURPOSE: One approach to preclinical single-photon emission computed tomography (SPECT) imaging that provides both high resolution and high sensitivity is based on imaging a mouse inside a collimating tube; many magnified pinhole projection images from a small target region, e.g., the heart, can be recorded simultaneously on multiple detectors with little multiplexing since each pinhole aperture's opening angle is restricted to view mostly the target organ. However, to obtain complete data for reconstruction, it may be necessary to scan the mouse through the target region of the tube...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27907089/detection-of-human-papillomavirus-infection-in-patients-with-vaginal-intraepithelial-neoplasia
#5
Cristina Lamos, Charlotte Mihaljevic, Sebastian Aulmann, Thomas Bruckner, Christoph Domschke, Markus Wallwiener, Carmen Paringer, Herbert Fluhr, Sarah Schott, Christine Dinkic, Janina Brucker, Michael Golatta, Lisa Gensthaler, Michael Eichbaum, Christof Sohn, Joachim Rom
INTRODUCTION: Vaginal intraepithelial neoplasia (VAIN) is a pre-malignant lesion, potentially leading to vaginal cancer. It is a rare disease, representing less than 1% of all intraepithelial neoplasia of the female genital tract. Similar to cervical intraepithelial neoplasia (CIN), there are three different grades of VAIN. VAIN 1 is also known as a low-grade squamous intraepithelial lesion (LSIL), whereas VAIN 2 and VAIN 3 both represent high-grade squamous intraepithelial lesions (HSIL)...
2016: PloS One
https://www.readbyqxmd.com/read/27906990/surveillance-of-helicobacter-pylori-antibiotic-susceptibility-in-indonesia-different-resistance-types-among-regions-and-with-novel-genetic-mutations
#6
Muhammad Miftahussurur, Ari Fahrial Syam, Iswan Abbas Nusi, Dadang Makmun, Langgeng Agung Waskito, Lukman Hakim Zein, Fardah Akil, Willy Brodus Uwan, David Simanjuntak, I Dewa Nyoman Wibawa, Jimmy Bradley Waleleng, Alexander Michael Joseph Saudale, Fauzi Yusuf, Syifa Mustika, Pangestu Adi, Ummi Maimunah, Hasan Maulahela, Yudith Annisa Ayu Rezkitha, Phawinee Subsomwong, Nasronudin, Dadik Rahardjo, Rumiko Suzuki, Junko Akada, Yoshio Yamaoka
Information regarding Helicobacter pylori antibiotic resistance in Indonesia was previously inadequate. We assessed antibiotic susceptibility for H. pylori in Indonesia, and determined the association between virulence genes or genetic mutations and antibiotic resistance. We recruited 849 dyspeptic patients who underwent endoscopy in 11 cities in Indonesia. E-test was used to determine the minimum inhibitory concentration of five antibiotics. PCR-based sequencing assessed mutations in 23S rRNA, rdxA, gyrA, gyrB, and virulence genes...
2016: PloS One
https://www.readbyqxmd.com/read/27906341/intra-half-cycle-interference-of-low-energy-photoelectron-in-strong-midinfrared-laser-fields
#7
Hui Xie, Min Li, Yang Li, Yueming Zhou, Peixiang Lu
Using semiclassical models with implementing interference effects, we study the low-energy photoelectron intra-half-cycle interferences among nonscattering trajectories and multiple forward scattering trajectories of atoms ionized by a strong mid-infrared laser field. Tracing back to the initial tunneling coordinates, we find that up to three kinds of forward scattering trajectories have substantial contributions to the low-energy photoelectrons. Those multiple forward scattering trajectories depend sensitively on the initial transverse momentum at the tunnel exit and they lead to sign reversal of the transverse momentum of the electrons...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27904839/noncardiac-thoracic-surgery-in-abidjan-from-1977-to-2015
#8
Yves Tanauh, Flavien Kendja, Hervé Yangni-Angate, Blaise Demine, Raphaël Ouédé, Maurice Kouacou
BACKGROUND: To report and analyze noncardiac thoracic operations performed at the Cardiology Institute of Abidjan (Institut de Cardiologie d'Abidjan) from 1977 to 2015. METHODS: This is a retrospective and descriptive study covering 39 years, from 1977 to 2015. This study period was divided into three periods of 13 years each: P1 from 1977 to 1989, P2 from 1990 to 2002 and P3 from 2003 to 2015. Medical records of 2014 operated patients were analyzed: 414 patients for P1, 464 patients for P2, 1,136 patients for P3...
October 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/27904796/functional-hop-tests-and-tuck-jump-assessment-scores-between-female-division-i-collegiate-athletes-participating-in-high-versus-low-acl-injury-prone-sports-a-cross-sectional-analysis
#9
Philipp Hoog, Meghan Warren, Craig A Smith, Nicole J Chimera
BACKGROUND: Although functional tests including the single leg hop (SLH), triple hop (TH), cross over hop (COH) for distance, and the tuck jump assessment (TJA) are used for return to play (RTP) criteria for post anterior cruciate ligament (ACL) injury, sport-specific baseline measurements are limited. PURPOSE: The purpose of this study was to examine differences in SLH, TH, and COH distance and limb symmetry index (LSI), as well as total scores, number of jumps, and individual flaws of the TJA in 97 injury-free Division I (DI) collegiate female student athletes participating in ACL injury prone vs...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27900304/clinical-outcome-of-design-modifications-to-the-cls-spotorno-stem-in-total-hip-replacement
#10
Angelo Graceffa, Pier Francesco Indelli, Leonardo Latella, Paolo Poli, Alexander Fulco, Massimiliano Marcucci
PURPOSE: historically, the original CLS Spotorno Stem has demonstrated excellent survival. The design of this stem was recently modified, resulting in the introduction of a shorter, modular version (CLS Brevius). The purpose of the current study was to evaluate the functional, radiological and survivorship outcomes of the cementless CLS Brevius Stem in a multi-surgeon, single center, consecutive series study at two years post-surgery. METHODS: the Authors performed 170 total hip arthroplasties in 155 patients using the shorter, triple-taper stem design (CLS Brevius)...
July 2016: Joints
https://www.readbyqxmd.com/read/27899581/hmtdb-2016-data-update-a-better-performing-query-system-and-human-mitochondrial-dna-haplogroup-predictor
#11
Rosanna Clima, Roberto Preste, Claudia Calabrese, Maria Angela Diroma, Mariangela Santorsola, Gaetano Scioscia, Domenico Simone, Lishuang Shen, Giuseppe Gasparre, Marcella Attimonelli
The HmtDB resource hosts a database of human mitochondrial genome sequences from individuals with healthy and disease phenotypes. The database is intended to support both population geneticists as well as clinicians undertaking the task to assess the pathogenicity of specific mtDNA mutations. The wide application of next-generation sequencing (NGS) has provided an enormous volume of high-resolution data at a low price, increasing the availability of human mitochondrial sequencing data, which called for a cogent and significant expansion of HmtDB data content that has more than tripled in the current release...
November 28, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27899251/improved-breast-cancer-cell-specific-intracellular-drug-delivery-and-therapeutic-efficacy-by-coupling-decoration-with-cell-penetrating-peptide-and-sp90-peptide
#12
Li-Qiang Fan, Guo-Xiu Du, Peng-Fei Li, Ming-Wei Li, Yao Sun, Li-Ming Zhao
Lack of satisfactory specificity towards tumor cells and poor intracellular delivery efficacy are the major drawbacks with conventional cancer chemotherapy. Conjugated anticancer drugs to targeting moieties e.g. to peptides with the ability to recognize cancer cells and to cell penetrating peptide can improve these characteristics, respectively. Combining a tumor homing peptide with an appropriate cell-penetrating peptide can enhance the tumor-selective internalization efficacy of the carrying cargo molecules...
November 26, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27895979/optical-redox-ratio-identifies-metastatic-potential-dependent-changes-in-breast-cancer-cell-metabolism
#13
Kinan Alhallak, Lisa G Rebello, Timothy J Muldoon, Kyle P Quinn, Narasimhan Rajaram
The development of prognostic indicators of breast cancer metastatic risk could reduce the number of patients receiving chemotherapy for tumors with low metastatic potential. Recent evidence points to a critical role for cell metabolism in driving breast cancer metastasis. Endogenous fluorescence intensity of nicotinamide adenine dinucleotide (NADH) and flavin adenine dinucleotide (FAD) can provide a label-free method for assessing cell metabolism. We report the optical redox ratio of FAD/(FAD + NADH) of four isogenic triple-negative breast cancer cell lines with varying metastatic potential...
November 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27895745/evaluation-of-the-association-between-hif-1%C3%AE-and-her-2-expression-hormone-receptor-status-ki-67-expression-histology-and-tumor-fdg-uptake-in-breast-cancer
#14
Sevi M Sureyya Cerci, Kemal Kursat Bozkurt, Hasan Erol Eroglu, Celal Cerci, Evrim Erdemoglu, Pinar Talip Bulbul, Meltem Cetin, Recep Cetin, Ibrahim Metin Ciris, Mahmut Bulbul
The present study aimed to examine hypoxia-inducible factor (HIF)-1α expression and its association with glucose uptake in invasive breast cancer. In addition, connections between glucose uptake and several other prognostic parameters of breast cancer were studied. Between August 2013 and April 2015, 92 patients with biopsy-diagnosed breast cancer were subjected to (18)F-fluorodeoxyglucose positron emission tomography/computed tomography. The primary tumor and nodal maximum standardized uptake values (SUVmax) were recorded, and HIF-1α expression and clinical parameters, including tumor mass, estrogen receptor (ER) and progesterone receptor (PgR) levels, human epidermal growth factor receptor-2 (HER-2), Ki-67 index, grade and histology, were analyzed...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27890625/pharmacological-treatment-optimization-for-stable-chronic-obstructive-pulmonary-disease-proposals-from-the-soci%C3%A3-t%C3%A3-de-pneumologie-de-langue-fran%C3%A3-aise
#15
M Zysman, F Chabot, P Devillier, B Housset, C M Panzini, N Roche
The Société de Pneumologie de Langue Française proposes a decision algorithm on long-term pharmacological COPD treatment. A working group reviewed the literature published between January 2009 and May 2016. This document lays out proposals and not guidelines. It only focuses on pharmacological treatments except vaccinations, smoking cessation treatments and oxygen therapy. Any COPD diagnosis, based on pulmonary function tests, should lead to recommend smoking cessation, vaccinations, physical activity, pulmonary rehabilitation in case of activity limitation, and short-acting bronchodilators...
November 24, 2016: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/27888420/endocan-as-a-prognostic-biomarker-of-triple-negative-breast-cancer
#16
Atsunobu Sagara, Katsuhide Igarashi, Maky Otsuka, Akihiro Kodama, Mutsumi Yamashita, Rei Sugiura, Takeshi Karasawa, Kazuhiko Arakawa, Michiko Narita, Naoko Kuzumaki, Minoru Narita, Yoshinori Kato
PURPOSE: Triple-negative breast cancer (TNBC) has aggressive characteristics and fewer treatment options than other subtypes. The purpose of this study was to explore prognostic biomarkers for TNBC that can be easily detected from the blood samples. METHODS: MDA-MB-231 and MDA-MB-231BR, a brain metastatic variant of the human TNBC cell line MDA-MB-231, were used as less and more aggressive models of TNBC, respectively. The extent to which the candidate gene/protein identified by RNA sequencing correlated well with aggressiveness of TNBC and how much protein was detected from the blood of tumor-bearing mice were evaluated...
November 25, 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27886429/assessing-health-care-quality-using-routine-data-evaluating-the-performance-of-the-national-tuberculosis-program-in-south-africa
#17
Zoë McLaren, Alana R Sharp, Jifang Zhou, Sean Wasserman, Ananta Nanoo
OBJECTIVE: To assess the performance of health care facilities by means of indicators based on guidelines for clinical care of TB, which is likely a good measure of overall facility quality. METHODS: We assessed quality of care in all public health facilities in South Africa using graphical, correlation and locally weighted kernel regression analysis of routine TB test data. RESULTS: Facility performance falls short of national standards of care...
November 25, 2016: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/27878282/the-importance-of-mitochondrial-folate-enzymes-in-human-colorectal-cancer
#18
Masaaki Miyo, Masamitsu Konno, Hugh Colvin, Naohiro Nishida, Jun Koseki, Koichi Kawamoto, Kenta Tsunekuni, Junichi Nishimura, Taishi Hata, Ichiro Takemasa, Tsunekazu Mizushima, Yuichiro Doki, Masaki Mori, Hideshi Ishii
Folate plays a pivotal role in the one-carbon metabolism needed for methylation reactions, nucleotide synthesis, and DNA repair. Although folate metabolism was recently shown to be associated with carcinogenesis in some solid tumors, the importance of folate metabolism in colorectal cancer remains unclear. In the present investigation we found that expression of three mitochondrial folate metabolic enzymes, serine hydroxymethyl transferase (SHMT2), methylenetetrahydrofolate dehydrogenase (MTHFD2) and aldehyde dehydrogenase 1 family member L2 (ALDH1L2), were upregulated in human colorectal tumor tissues compared to normal tissues...
November 22, 2016: Oncology Reports
https://www.readbyqxmd.com/read/27873176/palonosetron-aprepitant-and-dexamethasone-for-prevention-of-nausea-and-vomiting-after-high-dose-melphalan-in-autologous-transplantation-for-multiple-myeloma-a-phase-ii-study
#19
Atsushi Isoda, Rie Saito, Fuminori Komatsu, Yuki Negishi, Noriyasu Oosawa, Tetsuya Ishikawa, Yuri Miyazawa, Morio Matsumoto, Morio Sawamura, Akihiro Manaka
Chemotherapy-induced nausea and vomiting (CINV) is a significant side effect in multiple myeloma (MM) patients receiving high-dose melphalan treatment followed by autologous stem cell transplantation (ASCT). We evaluated the efficacy and safety of a triple antiemetic combination of palonosetron, aprepitant, and low-dose dexamethasone in 24 MM patients who received melphalan conditioning (100 mg/m(2) on days 1-2) before ASCT (on day 4). Intravenous palonosetron (0.75 mg on day 1), oral aprepitant (125 mg on day 1; 80 mg on days 2-4), and intravenous dexamethasone (6...
November 21, 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27872098/systematic-drug-screening-identifies-tractable-targeted-combination-therapies-in-triple-negative-breast-cancer
#20
Vikram B Wali, Casey G Langdon, Matthew A Held, James T Platt, Gauri A Patwardhan, Anton Safonov, Bilge Aktas, Lajos Pusztai, David F Stern, Christos Hatzis
Triple-negative breast cancer (TNBC) remains an aggressive disease without effective targeted therapies. In this study, we addressed this challenge by testing 128 FDA-approved or investigational drugs as either single agents or in 768 pairwise drug combinations in TNBC cell lines to identify synergistic combinations tractable to clinical translation. Medium-throughput results were scrutinized and extensively analyzed for sensitivity patterns, synergy, anticancer activity and validation in low-throughput experiments...
November 21, 2016: Cancer Research
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