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https://www.readbyqxmd.com/read/29777999/targeted-delivery-of-cd44s-sirna-by-scfv-overcomes-de-novo-resistance-to-cetuximab-in-triple-negative-breast-cancer
#1
Wenyan Fu, Hefen Sun, Yang Zhao, Mengting Chen, Lipeng Yang, Xueli Yang, Wei Jin
The overexpression of EGFR often occurs in TNBC, and the anti-EGFR receptor antibody cetuximab is used widely to treat metastatic cancer in the clinic. However, EGFR-targeted therapies have been developed for TNBC without clinical success. In this study, we show that impaired EGFR degradation is crucial for resistance to cetuximab, which depends on the cell surface molecule CD44. To further investigate the role of CD44 in EGFR signaling and its treatment potential, we developed a targeting fusion protein composed of an anti-EGFR scFv generated from cetuximab and truncated protamine, called Ce-tP...
May 16, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29777667/properties-and-units-in-the-clinical-laboratory-sciences-part-xxiv-properties-and-units-in-clinical-molecular-genetics-technical-report-2017
#2
Ulla M Petersen, Ariadna Padró Miquel, Graham Taylor, Jens Michael Hertz, Rebecca Ceder, Xavier Fuentes Arderiu, Johan T den Dunnen
This document describes the application of the syntax, semantic rules, and format of the Nomenclature for Properties and Units (NPU) terminology for coded dedicated kinds-of-property in the subject field of clinical molecular genetics. A vocabulary for NPU definitions in this field, based on international terminology and nomenclature, is introduced; examples of actual NPU definitions for different types of investigations are given and explained.
May 16, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29777660/chronic-obstructive-pulmonary-disease-exacerbations-a-need-for-action
#3
Antonio Anzueto, Marc Miravitlles
Chronic obstructive pulmonary disease (COPD) is a leading cause of morbidity and mortality, with exacerbations contributing strongly to the overall severity and burden of disease at the individual level. Many patients with COPD are managed predominantly in the primary care setting; therefore, primary care physicians (PCPs) must have awareness and understanding of the causes, effects, and management of exacerbations in COPD. This review offers practical information regarding how exacerbations are defined in the treatment setting, pathogenic and environmental causes, options for exacerbation treatment and prevention, and suggestions for improving care in the clinic...
May 16, 2018: American Journal of Medicine
https://www.readbyqxmd.com/read/29777555/impact-of-nicu-oral-feeding-on-neuropsychomotor-outcomes-at-9-months-of-corrected-age-in-chinese-low-birth-weight-preterm-infants-a-retrospective-study
#4
Wenwen Ding, Lijin Zhao, Nan Sheng, Jiali Ma, Ying Zhang
AIMS AND OBJECTIVES: To examine the changes in neuropsychomotor development and investigate the effect of feeding progression in Neonatal Intensive Care Unit (NICU) on neuropsychomotor outcomes in low-birth-weight preterm infants within 9 months of corrected age. BACKGROUND: Low-birth-weight (LBW) preterm infants (<37 weeks of gestation and birth weight < 2500 g) are at a high risk for neuropsychomotor development delay. Therefore, exploring NICU practices related to neuropsychomotor development is important...
May 18, 2018: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29777523/application-of-cu-64-nodaga-psma-pet-in-prostate-cancer
#5
Sabina Sevcenco, Hans Christoph Klingler, Klaus Eredics, Alexander Friedl, Jenifer Schneeweiss, Peter Knoll, Thomas Kunit, Lukas Lusuardi, Siroos Mirzaei
INTRODUCTION: The high diagnostic potential of 64 Cu-PSMA PET-CT imaging was clinically investigated in prostate cancer patients with recurrent disease and in the primary staging of selected patients with advanced local disease. The aim of our study is to assess the uptake behavior in the clinical setting of 64Copper Prostate-Specific Membrane Antigen (64 Cu PSMA) Positron Emission Tomography/Computed Tomography (PET/CT) in prostate cancer. METHODS: A retrospective study was performed in 23 patients with intermediate, high risk and progressive disease at primary staging of prostate cancer...
May 17, 2018: Advances in Therapy
https://www.readbyqxmd.com/read/29777434/ascorbic-acid-inhibits-senescence-in-mesenchymal-stem-cells-through-ros-and-akt-mtor-signaling
#6
Mengkai Yang, Songsong Teng, Chunhui Ma, Yinxian Yu, Peilin Wang, Chengqing Yi
Mesenchymal stem cell (MSC) aging seriously affects its function in stem cell transplantation for treatment. Extensive studies have focused on how to inhibit senescence in MSCs. However, the mechanism of senescence in MSC was not clear. In this study, we used D-galactose to induce MSC aging. Then we found that the number of aging cells was increased compared with untreated MSCs. We discovered that ascorbic acid could inhibit the production of reactive oxygen species (ROS) and activation of AKT/mTOR signaling in MSCs caused by D-galactose...
May 18, 2018: Cytotechnology
https://www.readbyqxmd.com/read/29777128/comparison-of-the-serum-metabolic-signatures-based-on-1-h-nmr-between-patients-and-a-rat-model-of-deep-vein-thrombosis
#7
Jie Cao, Qian-Qian Jin, Gui-Ming Wang, Hong-Lin Dong, Yong-Ming Feng, Jun-Sheng Tian, Ke-Ming Yun, Ying-Yuan Wang, Jun-Hong Sun
Deep vein thrombosis (DVT) and pulmonary embolism (PE) have high morbidity, reduce quality of life, and can cause death. Biomarkers or genetic risk factors have not been identified in patients with DVT. In present study, serum of 61 patients suffering from DVT and a rat DVT model (n = 10) were assayed by a proton nuclear magnetic resonance (1 H NMR) metabolomics technique combing with multivariate statistical analysis to identify the metabolites. The MetPA platform was used to identify differences in the metabolic pathways between the rat model and patients...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29776629/clinical-implication-of-micrornas-in-molecular-pathology-an-update-for-2018
#8
REVIEW
Seema Sethi, Sajiv Sethi, Martin H Bluth
MicroRNAs (miRNAs) are poised to provide diagnostic, prognostic, and therapeutic targets for several diseases including malignancies for precision medicine applications. The miRNAs have immense potential in the clinical arena because they can be detected in the blood, serum, tissues (fresh and formalin-fixed paraffin-embedded), and fine-needle aspirate specimens. The most attractive feature of miRNA-based therapy is that a single miRNA could be useful for targeting multiple genes that are deregulated in cancers, which can be further investigated through systems biology and network analysis that may provide cancer-specific personalized therapy...
June 2018: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/29776627/introduction-molecular-medicine-in-the-common-era-applications-and-impact-of-molecular-pathology-in-health-and-disease
#9
REVIEW
Martin H Bluth
The unprecedented expansion of molecular pathology continues to affect and influence the clinical laboratory. Technological advances in high-throughput automation, cost containment, and refined methodology have improved the understanding of pathobiology through application of molecular pathology to multiple disease spaces. Incorporation of this field to emerging omics platforms, pharmacovigilance and biomarker discovery, and accessibility by lay consumers demonstrates the widespread reach of molecular pathology in the clinical marketplace...
June 2018: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/29776597/the-role-of-fdg-pet-in-detecting-rejection-after-liver-transplantation
#10
Ashley M Watson, Neal Bhutiani, Prejesh Philips, Eric G Davis, Mary Eng, Robert M Cannon, Christopher M Jones
BACKGROUND: The activation and increased metabolic activity of T cells in acute cellular rejection could allow fluoro-2-deoxyglucose positron emission tomography to be utilized for detection of acute cellular rejection. The objective of this study was to evaluate the effectiveness of fluoro-2-deoxyglucose positron emission tomography in detecting acute cellular rejection in the clinical setting. METHODS: Fluoro-2-deoxyglucose positron emission tomography studies were performed on 88 orthotopic liver transplant patients at 7 and 17 days postoperatively (first positron emission tomography and second positron emission tomography, respectively)...
May 15, 2018: Surgery
https://www.readbyqxmd.com/read/29776588/trials-comparing-flowable-and-conventional-resin-composite-using-the-us-public-health-service-criteria-show-that-there-are-probably-no-differences-in-the-clinical-outcomes-between-the-materials
#11
Romina Brignardello-Petersen
No abstract text is available yet for this article.
May 5, 2018: Journal of the American Dental Association
https://www.readbyqxmd.com/read/29776382/sternal-instability-measured-with-radiostereometric-analysis-a-study-of-method-feasibility-accuracy-and-precision
#12
Rikke Falsig Vestergaard, Kjeld Søballe, John Michael Hasenkam, Maiken Stilling
BACKGROUND: A small, but unstable, saw-gap may hinder bone-bridging and induce development of painful sternal dehiscence. We propose the use of Radiostereometric Analysis (RSA) for evaluation of sternal instability and present a method validation. METHODS: Four bone analogs (phantoms) were sternotomized and tantalum beads were inserted in each half. The models were reunited with wire cerclage and placed in a radiolucent separation device. Stereoradiographs (n = 48) of the phantoms in 3 positions were recorded at 4 imposed separation points...
May 18, 2018: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29776310/preparation-and-evaluation-of-ribonuclease-resistant-viral-hiv-rna-standards-based-on-armored-rna-technology
#13
Mohammad Gholami, Mehrdad Ravanshad, Kazem Baesi, Siamak M. Samiee, Negin Hosseini Rozbahani, Minoo Mohraz
BAckground: The human immunodeficiency virus type 1 (HIV-1) is an infectious viral agent that gradually extinguishes the immune system, resulting in acquired immune deficiency syndrome (AIDS). The aim of this study was to construct an RNA-positive control based on armored (AR) RNA technology, using HIV-1 RNA as a model. Methods: The MS2 maturase, a coat protein gene (at positions 1765 to 1787) and HIV-1 pol gene were cloned into pET-32a plasmid. The prepared plasmid was transformed into Escherichia coli strain BL2 (DE3), and the expression of the construct was induced by 1 mM of isopropyl-L-thio-D-galactopyranoside (IPTG) at 37 °C for 16 h to obtain the fabricated AR RNA...
May 19, 2018: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/29774820/robotic-sacral-colpopexy
#14
Charles R Powell, Isamu Tachibana, Bridget Eckrich, Jeffrey Rothenberg, Jon Hathaway
INTRODUCTION AND OBJECTIVE: Robot-assisted sacral colpopexy (RASC) is a fast growing approach for surgeons treating patients with advanced stage pelvic organ prolapse (POP). Open abdominal sacral colpopexy has been the gold standard for advanced POP but requires longer hospital stays and a much larger incision. The indications, preoperative preparation, operative positioning, and operative steps are detailed, and an accompanying video shows the approach. METHODS: RASC can be broken down into 11 steps and the reader will be able to reference the article to the corresponding portion of the video...
May 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29774627/changes-in-eating-disorder-characteristics-over-the-years
#15
Michel Probst, Kärt Kürsa, Tine Van Damme, Jolien Diedens, Johan Vanderlinden
Since 1980, the diagnostic criteria of patients with eating disorders (ED) have changed over the years. Are these changes also expressed in the clinical features of the ED patients? A cross-sectional sample was drawn consisting of 100 consecutive female patients' files diagnosed with anorexia nervosa (AN) and bulimia nervosa (BN) and bulimia nervosa and admitted at an inpatient unit from the first of January 1990, 2000, and 2010, respectively. Several reliable and well-validated questionnaires (Eating Disorder Inventory, Body Attitude Test, Symptom Checklist, and the Beck Depression Inventory) were administered and scores were compared...
May 17, 2018: European Eating Disorders Review: the Journal of the Eating Disorders Association
https://www.readbyqxmd.com/read/29774621/increase-of-frontal-cerebral-blood-volume-during-transcranial-magnetic-stimulation-in-depression-is-related-to-treatment-effectiveness-a-pilot-study-with-near-infrared-spectroscopy
#16
Toshikazu Shinba, Nobutoshi Kariya, Saori Matsuda, Hanae Matsuda, Yusuke Obara
AIM: Alterations of cerebral blood flow have been reported in studies of depression treated by transcranial magnetic stimulation (TMS). However, the relationship between these changes in activity during stimulation and the effectiveness of TMS is not known. The aim of this study was to determine whether changes in frontal cerebral blood volume measured as frontal hemoglobin concentration (fHbC) during TMS are correlated with clinical outcomes of treatment. METHODS: Fifteen drug-resistant patients with depression underwent a standard treatment regimen of TMS to the left dorsolateral prefrontal cortex...
May 18, 2018: Psychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/29774408/possible-association-of-cag-repeat-polymorphism-in-kcnn3-encoding-the-potassium-channel-sk3-with-oxaliplatin-induced-neurotoxicity
#17
Benjamin Anon, Bérenger Largeau, Alban Girault, Aurélie Chantome, Morgane Caulet, Clémence Perray, Driffa Moussata, Christophe Vandier, Chantal Barin-Le Guellec, Thierry Lecomte
INTRODUCTION: Data suggest a role of the potassium channel SK3 (KCNN3 gene) in oxaliplatin-induced neurotoxicity (OIN). Length variations in the polymorphic CAG repeat of the KCNN3 gene may be associated with the risk of OIN. MATERIALS AND METHODS: We performed patch-clamp experiments on HEK293 cell lines, expressing SK3 channel isoforms with short (11) or long (24) CAG repetitions, to measure intracellular calcium concentrations to test the effects of oxaliplatin on current density...
May 17, 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29774168/evaluating-the-potential-for-maximized-t-cell-redistribution-entropy-to-improve-abscopal-responses-to-radiotherapy
#18
Rachel Walker, Jonathan D Schoenfeld, Shari Pilon-Thomas, Jan Poleszczuk, Heiko Enderling
The potential for local radiation therapy to elicit systemic (abscopal) anti-tumor immune responses has been receiving a significant amount of attention over the last decade. We recently developed a mathematical framework designed to simulate the systemic dissemination of activated T cells among multiple metastatic sites. This framework allowed the identification of non-intuitive patterns of T cell redistribution after localized therapy, and offered suggestions as to the optimal site to irradiate in order to increase the magnitude of an immune-mediated abscopal response...
September 2017: Convergent Science Physical Oncology
https://www.readbyqxmd.com/read/29773892/metabolite-cycled-density-weighted-concentric-rings-k-space-trajectory-dw-crt-enables-high-resolution-1-h-magnetic-resonance-spectroscopic-imaging-at-3-tesla
#19
Adam Steel, Mark Chiew, Peter Jezzard, Natalie L Voets, Puneet Plaha, Michael Albert Thomas, Charlotte J Stagg, Uzay E Emir
Magnetic resonance spectroscopic imaging (MRSI) is a promising technique in both experimental and clinical settings. However, to date, MRSI has been hampered by prohibitively long acquisition times and artifacts caused by subject motion and hardware-related frequency drift. In the present study, we demonstrate that density weighted concentric ring trajectory (DW-CRT) k-space sampling in combination with semi-LASER excitation and metabolite-cycling enables high-resolution MRSI data to be rapidly acquired at 3 Tesla...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773324/comparison-of-pitch-strength-with-perceptual-and-other-acoustic-metric-outcome-measures-following-medialization-laryngoplasty
#20
Adam D Rubin, Cristina Jackson-Menaldi, Lisa M Kopf, Katherine Marks, Jean Skeffington, Mark D Skowronski, Rahul Shrivastav, Eric J Hunter
INTRODUCTION: The diagnoses of voice disorders, as well as treatment outcomes, are often tracked using visual (eg, stroboscopic images), auditory (eg, perceptual ratings), objective (eg, from acoustic or aerodynamic signals), and patient report (eg, Voice Handicap Index and Voice-Related Quality of Life) measures. However, many of these measures are known to have low to moderate sensitivity and specificity for detecting changes in vocal characteristics, including vocal quality. OBJECTIVE: The objective of this study was to compare changes in estimated pitch strength (PS) with other conventionally used acoustic measures based on the cepstral peak prominence (smoothed cepstral peak prominence, cepstral spectral index of dysphonia, and acoustic voice quality index), and clinical judgments of voice quality (GRBAS [grade, roughness, breathiness, asthenia, strain] scale) following laryngeal framework surgery...
May 14, 2018: Journal of Voice: Official Journal of the Voice Foundation
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