Read by QxMD icon Read


Samer Toume, Amit Gefen, Daphne Weihs
We observed that radially stretching cell monolayers at a low level (3%) increases the rate at which they migrate to close a gap formed by in vitro injury. Wound healing has been shown to accelerate in vivo when deformations are topically applied, for example, by negative pressure wound therapy. However, the direct effect of deformations on cell migration during gap closure is still unknown. Thus, we have evaluated the effect of radially applied, sustained (static) tensile strain on the kinematics of en mass cell migration...
October 17, 2016: International Wound Journal
Wanqing Liu, Quentin M Anstee, Xiaoliang Wang, Samer Gawrieh, Eric R Gamazon, Shaminie Athinarayanan, Yang-Lin Liu, Rebecca Darlay, Heather J Cordell, Ann K Daly, Chris P Day, Naga Chalasani
The increased expression of PNPLA3(148M) leads to hepatosteatosis in mice. This study aims to investigate the genetic control of hepatic PNPLA3 transcription and to explore its impact on NAFLD risk in humans. Through a locus-wide expression quantitative trait loci (eQTL) mapping in two human liver sample sets, a PNPLA3 intronic SNP, rs139051 A>G was identified as a significant eQTL (p = 6.6×10(-8)) influencing PNPLA3 transcription, with the A allele significantly associated with increased PNPLA3 mRNA. An electrophoresis mobility shift assay further demonstrated that the A allele has enhanced affinity to nuclear proteins than the G allele...
October 13, 2016: Aging
Farah Benyettou, Jaen Alonso Ocadiz Flores, Florent Ravaux, Rachid Rezgui, Mustapha Jouiad, Samer I Nehme, Rajesh Kumar Parsapur, John-Carl Olsen, Parasuraman Selvam, Ali Trabolsi
Mesoporous iron-oxide nanoparticles (mNPs) were prepared by using a modified nanocasting approach with mesoporous carbon as a hard template. mNPs were first loaded with doxorubicin (Dox), an anticancer drug, and then coated with the thermosensitive polymer Pluronic F108 to prevent the leakage of Dox molecules from the pores that would otherwise occur under physiological conditions. The Dox-loaded, Pluronic F108-coated system (Dox@F108-mNPs) was stable at room temperature and physiological pH and released its Dox cargo slowly under acidic conditions or in a sudden burst with magnetic heating...
October 14, 2016: Chemistry: a European Journal
Mira Skaf, Sara Hany, Samer Aouad, Cédric Gennequin, Madona Labaki, Edmond Abi-Aad, Antoine Aboukaïs
10% Ag/CeO2 solid was prepared by the impregnation method. When the solid is calcined at 400 °C, three types of Ag(2+) species are formed. One of them is more thermally stable compared to the others. The adsorption on the solid of O2 or H2 molecules gives an adsorbed O2(-) species on the surface, detected by electron paramagnetic resonance (EPR). The mobility of oxygen in CeO2 and the nature of cations loaded on this support can be the origin of the adsorbed O2(-) species particularly when the solid is treated under H2 molecules...
October 13, 2016: Physical Chemistry Chemical Physics: PCCP
Ahmad Samer Alawad, Cynthia Levy
No abstract text is available yet for this article.
October 12, 2016: Digestive Diseases and Sciences
Jun Wang, Louise B Thingholm, Jurgita Skiecevičienė, Philipp Rausch, Martin Kummen, Johannes R Hov, Frauke Degenhardt, Femke-Anouska Heinsen, Malte C Rühlemann, Silke Szymczak, Kristian Holm, Tönu Esko, Jun Sun, Mihaela Pricop-Jeckstadt, Samer Al-Dury, Pavol Bohov, Jörn Bethune, Felix Sommer, David Ellinghaus, Rolf K Berge, Matthias Hübenthal, Manja Koch, Karin Schwarz, Gerald Rimbach, Patricia Hübbe, Wei-Hung Pan, Raheleh Sheibani-Tezerji, Robert Häsler, Philipp Rosenstiel, Mauro D'Amato, Katja Cloppenborg-Schmidt, Sven Künzel, Matthias Laudes, Hanns-Ulrich Marschall, Wolfgang Lieb, Ute Nöthlings, Tom H Karlsen, John F Baines, Andre Franke
Human gut microbiota is an important determinant for health and disease, and recent studies emphasize the numerous factors shaping its diversity. Here we performed a genome-wide association study (GWAS) of the gut microbiota using two cohorts from northern Germany totaling 1,812 individuals. Comprehensively controlling for diet and non-genetic parameters, we identify genome-wide significant associations for overall microbial variation and individual taxa at multiple genetic loci, including the VDR gene (encoding vitamin D receptor)...
October 10, 2016: Nature Genetics
Mark M Stevens, Cecile L Maire, Nigel Chou, Mark A Murakami, David S Knoff, Yuki Kikuchi, Robert J Kimmerling, Huiyun Liu, Samer Haidar, Nicholas L Calistri, Nathan Cermak, Selim Olcum, Nicolas A Cordero, Ahmed Idbaih, Patrick Y Wen, David M Weinstock, Keith L Ligon, Scott R Manalis
Assays that can determine the response of tumor cells to cancer therapeutics could greatly aid the selection of drug regimens for individual patients. However, the utility of current functional assays is limited, and predictive genetic biomarkers are available for only a small fraction of cancer therapies. We found that the single-cell mass accumulation rate (MAR), profiled over many hours with a suspended microchannel resonator, accurately defined the drug sensitivity or resistance of glioblastoma and B-cell acute lymphocytic leukemia cells...
October 10, 2016: Nature Biotechnology
Samer L Traboulsi, Johannes Alfred Witjes, Wassim Kassouf
Primary urethral cancer is one of the rare urologic tumors. Distal urethral tumors are usually less advanced at diagnosis compared with proximal tumors and have a good prognosis if treated appropriately. Low-stage distal tumors can be managed successfully with a surgical approach in men or radiation therapy in women. There are no clear-cut indications for the choice of the most appropriate treatment modality. Organ-preserving modalities have shown effective and should be used whenever they do not compromise the oncological safety to decrease the physical and psychological trauma of dismemberment or loss of sexual/urinary function...
November 2016: Urologic Clinics of North America
Santiago Jose Cartamil-Bueno, Peter Gerard Steeneken, Alba Centeno, Amaia Zurutuza, Herre S J van der Zant, Samer Houri
Previous statistical studies on the mechanical properties of chemical-vapor-deposited (CVD) suspended graphene membranes have been performed by means of measuring individual devices or with techniques that affect the material. Here, we present a colorimetry technique as a parallel, non-invasive, and affordable way of characterizing suspended graphene devices. We exploit Newton's rings interference patterns to study the deformation of a double-layer graphene drum 13.2 μm in diameter when a pressure step is applied...
October 6, 2016: Nano Letters
Mehrdad Rakaee, Lill-Tove Busund, Erna-Elise Paulsen, Elin Richardsen, Samer Al-Saad, Sigve Andersen, Tom Donnem, Roy M Bremnes, Thomas K Kilvaer
Recent data indicate that tumor-associated neutrophils (TANs) serve a dual role in tumor progression and regression. CD66b is a neutrophil marker and has been associated with patient outcome in various cancers. However, its clinical impact in non-small cell lung cancer (NSCLC) remains controversial. 536 NSCLC patients, of which 172 harbored lymph node metastases, were included in this study. Tissue microarrays were constructed and multiplexed immunohistochemistry of CD66b, CD34 and pan-keratin was performed to evaluate the localization and quantity of CD66b+ TANs...
September 30, 2016: Oncotarget
Sassine Ghanem, Mazen Zaarour, Uroosa Ibrahim, Samer Saouma, Ying Liu, Fanyi Kong, Jean Paul Atallah
Actinomycosis is a rare, chronic granulomatous infection caused by gram-positive, anaerobic to microaerophilic branching filamentous bacteria. In the cervicofacial region, it usually presents as an enlarging neck mass. It remains a diagnostic challenge due to the fact that cultures show no growth in more than 50% of cases. We report a case of a 67-year-old patient known to have a neck mass secondary to lymphoma in which the neck mass persisted despite therapy. Upon evaluation, the diagnosis of culture-negative actinomycosis was based on histopathology findings, and the patient received antibiotic therapy...
August 23, 2016: Curēus
Stéphanie Romand, Dany Spaggiari, Niloufar Marsousi, Caroline Samer, Jules Desmeules, Youssef Daali, Serge Rudaz
The hepatic metabolism of oxycodone by cytochromes P450 (CYP) and the UDP-glucuronosyltransferases (UGT), the main metabolic enzymes of phase I and phase II, respectively, was assessed in vitro. The N-demethylation by CYP3A4/5 and the O-demethylation by CYP2D6 in human liver microsomes (HLM) followed Michaelis-Menten kinetics, with intrinsic clearances of 1.46μL/min/mg and 0.35μL/min/mg, respectively. Although noroxycodone and oxymorphone mainly contribute to the elimination of oxycodone, the simulated total in vivo clearance using in vitro phase I metabolism was underestimated...
September 26, 2016: Journal of Pharmaceutical and Biomedical Analysis
Cherilyn G Sheets, Jean C Wu, Samer Rashad, Michael Phelan, James C Earthman
STATEMENT OF PROBLEM: Conventional diagnostic aids based upon imagery and patient symptoms do not indicate whether restorative treatments have eliminated structural pathology. PURPOSE: The purpose of this clinical study was to evaluate quantitative percussion diagnostics (QPD), a mechanics-based methodology that tests the structural integrity of teeth noninvasively. The study hypothesis was that QPD would provide knowledge of the structural instability of teeth after restorative work...
September 28, 2016: Journal of Prosthetic Dentistry
Anil Gungor, Lindsey Pennington, Senthil Sankararaman, Samer Zaid-Kaylani, Majed Aldin Jeroudi
Nasal type extranodal natural killer/T-cell lymphoma (ENKTL) is a rare lymphoma in the USA and Europe but endemic in East Asia and in areas of South and Central America. Clinically natural killer cell lymphomas are divided into three categories; nasal, non-nasal and aggressive lymphoma/leukemia subtypes. ENKTL, nasal type occurs in the nose and can extend to the upper aero-digestive tract as reported in this longitudinal case study. This is a longitudinal report of progress of a 14-year-old boy with ENKTL originating in the nasal cavity with subsequent extension and recurrence in the contralateral nose, nasopharynx, larynx and trachea presenting with varying degrees of respiratory problems and eventually, respiratory distress...
August 12, 2016: American Journal of Otolaryngology
Dirk Rades, Daniel Seidl, Stefan Janssen, Primoz Strojan, Katarina Karner, Amira Bajrovic, Samer G Hakim, Barbara Wollenberg, Steven E Schild
Radio-chemotherapy is a common treatment for locally advanced squamous cell head-and-neck cancers (LA-SCCHN). Cisplatin (100 mg/m(2)) every 3 weeks is very common but associated with considerable toxicity. Therefore, cisplatin programs with lower daily doses were introduced. There is a lack of studies comparing lower-dose programs. In this study, 85 patients receiving radio-chemotherapy with 20 mg/m(2) cisplatin on 5 days every 4 weeks (group A) were retrospectively compared to 85 patients receiving radio-chemotherapy with 30-40 mg/m(2) cisplatin weekly (group B)...
September 29, 2016: European Archives of Oto-rhino-laryngology
Tariq Abduljabbar, Fawad Javed, Altaf Shah, Mazin Saleh Samer, Fahim Vohra, Zohaib Akram
The aim of the study was to assess the efficacy of adjunctive use of laser therapy (LT) alone or antimicrobial photodynamic therapy (aPDT) to improve clinical periodontal and HbA1c levels in patients with both chronic periodontitis (CP) and type 2 diabetes mellitus (T2DM). Electronic search of the MEDLINE, PubMed, EMBASE, Science Direct, and SCOPUS databases were combined with hand searching of articles published from 1975 up to and including March 2016 using relevant MeSH terms. Six studies were selected for this review...
September 29, 2016: Lasers in Medical Science
Samer Angelone-Alasaad, Michael J Jowers, Rosario Panadero, Ana Pérez-Creo, Gerardo Pajares, Pablo Díez-Baños, Ramón C Soriguer, Patrocinio Morrondo
BACKGROUND: Filarioid nematode parasites are major health hazards with important medical, veterinary and economic implications. Recently, they have been considered as indicators of climate change. FINDINGS: In this paper, we report the first record of Setaria tundra in roe deer from the Iberian Peninsula. Adult S. tundra were collected from the peritoneal cavity during the post-mortem examination of a 2 year-old male roe deer, which belonged to a private fenced estate in La Alcarria (Guadalajara, Spain)...
September 29, 2016: Parasites & Vectors
Tim Cardilin, Joachim Almquist, Mats Jirstrand, Alexandre Sostelly, Christiane Amendt, Samer El Bawab, Johan Gabrielsson
Combination therapies are widely accepted as a cornerstone for treatment of different cancer types. A tumor growth inhibition (TGI) model is developed for combinations of cetuximab and cisplatin obtained from xenograft mice. Unlike traditional TGI models, both natural cell growth and cell death are considered explicitly. The growth rate was estimated to 0.006 h(-1) and the natural cell death to 0.0039 h(-1) resulting in a tumor doubling time of 14 days. The tumor static concentrations (TSC) are predicted for each individual compound...
September 28, 2016: AAPS Journal
Anthony M T Chau, Filippo Gagliardi, Adam Smith, Nicholas R Pelzer, Fiona Stewart, Pietro Mortini, Samer K Elbabaa, Anthony J Caputy, Cristian Gragnaniello
BACKGROUND: The posterior fusiform gyrus lies in a surgically challenging region. Several approaches have been described to access this anatomical area. The paramedian supracerebellar transtentorial (SCTT) approach benefits from minimal disruption of normal neurovascular tissue. The aim of this study was to demonstrate its application to access the posterior fusiform gyrus. METHODS: Three brains and six cadaveric heads were examined. A stepwise dissection of the SCTT approach to the posterior fusiform gyrus was performed...
November 2016: Acta Neurochirurgica
Charles Fattal, Claire Anquetil, Samer Abdelhamid
OBJECTIVE: To compare quality of life (QoL) in patients with spinal cord injury who underwent overactive detrusor treatment by Botulinum Toxin (BT) versus augmentation cystoplasty (AC). MATERIALS/PATIENTS AND METHODS: Prospective and descriptive study. Patients with refractory overactive bladder due to SCI were treated by at least 2 successive injections of BT or by AC. QoL was assessed using Qualiveen-30 (Q30). Clinical data and urodynamic parameters were collected and compared...
September 2016: Annals of Physical and Rehabilitation Medicine
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"