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Molecular medical imaging

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https://www.readbyqxmd.com/read/27895868/immunohistochemical-subtypes-of-breast-cancer-correlation-with-clinicopathological-and-radiological-factors
#1
Yu-Mee Sohn, Kyunghwa Han, Mirinae Seo
BACKGROUND: The relationship between biomarkers and imaging features is important because imaging findings can predict molecular features. OBJECTIVES: To investigate the relationship between clinicopathologic and radiologic factors and the immunohistochemical (IHC) profiles associated with breast cancer. PATIENTS AND METHODS: From December 2004 to September 2013, 200 patients (mean age, 56 years; range, 29 - 82 years) were diagnosed with breast cancer and underwent surgery at our institution...
October 2016: Iranian Journal of Radiology: a Quarterly Journal Published By the Iranian Radiological Society
https://www.readbyqxmd.com/read/27874037/visualizing-epithelial-expression-of-egfr-in-vivo-with-distal-scanning-side-viewing-confocal-endomicroscope
#2
Xiyu Duan, Haijun Li, Juan Zhou, Quan Zhou, Kenn R Oldham, Thomas D Wang
Confocal endomicroscopy is an emerging imaging technology that has recently been introduced into the clinic to instantaneously collect "optical biopsies" in vivo with histology-like quality. Here, we demonstrate a fast scanner located in the distal end of a side-viewing instrument using a compact lens assembly with numerical aperture of 0.5 to achieve a working distance of 100 μm and field-of-view of 300 × 400 μm(2). The microelectromechanical systems (MEMS) mirror was designed based on the principle of parametric resonance and images at 5 frames per second...
November 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27870678/interventional-oncology-in-hepatocellular-carcinoma-progress-through-innovation
#3
Lin Mu, Julius Chapiro, Jeremiah Stringam, Jean-François Geschwind
The clinical management of hepatocellular carcinoma has evolved greatly in the last decade mostly through recent technical innovations. In particular, the application of cutting-edge image guidance has led to minimally invasive solutions for complex clinical problems and rapid advances in the field of interventional oncology. Many image-guided therapies, such as transarterial chemoembolization and radiofrequency ablation, have meanwhile been fully integrated into interdisciplinary clinical practice, whereas others are currently being investigated...
November 2016: Cancer Journal
https://www.readbyqxmd.com/read/27866729/molecular-imaging-in-the-diagnosis-of-alzheimer-s-disease-and-related-disorders
#4
REVIEW
L Koric, E Guedj, M O Habert, F Semah, P Branger, P Payoux, F Le Jeune
INTRODUCTION: The diagnosis of Alzheimer's disease (AD) and its related disorders rely on clinical criteria. There is, however, a large clinical overlap between the different neurodegenerative diseases affecting cognition and, frequently, there are diagnostic uncertainties with atypical clinical presentations. Current clinical practices can now regularly use positron emission tomography (PET) and single-photon emission computed tomography (SPECT) molecular imaging to help resolve such uncertainties...
November 17, 2016: Revue Neurologique
https://www.readbyqxmd.com/read/27864268/de-novo-gabrg2-mutations-associated-with-epileptic-encephalopathies
#5
Dingding Shen, Ciria C Hernandez, Wangzhen Shen, Ningning Hu, Annapurna Poduri, Beth Shiedley, Alex Rotenberg, Alexandre N Datta, Steffen Leiz, Steffi Patzer, Rainer Boor, Kerri Ramsey, Ethan Goldberg, Ingo Helbig, Xilma R Ortiz-Gonzalez, Johannes R Lemke, Eric D Marsh, Robert L Macdonald
Epileptic encephalopathies are a devastating group of severe childhood onset epilepsies with medication-resistant seizures and poor developmental outcomes. Many epileptic encephalopathies have a genetic aetiology and are often associated with de novo mutations in genes mediating synaptic transmission, including GABAA receptor subunit genes. Recently, we performed next generation sequencing on patients with a spectrum of epileptic encephalopathy phenotypes, and we identified five novel (A106T, I107T, P282S, R323W and F343L) and one known (R323Q) de novo GABRG2 pathogenic variants (mutations) in eight patients...
November 17, 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/27862751/label-free-molecular-imaging-of-biological-cells-and-tissues-by-linear-and-non-linear-raman-spectroscopic-approaches
#6
Jürgen Popp, Christoph Krafft, Michael Schmitt, Iwan Schie, Dana Cialla-May, Christian Matthaeus, Thomas Bocklitz
Raman spectroscopy is an emerging technique in bioanalysis and imaging of biomaterials due to its unique spectroscopic fingerprint capabilities. Imaging of cells and tissues by Raman microspectroscopy represents a non-destructive and label-free approach. All components of cells or tissues contribute to the Raman signals giving complex spectral signatures. Long acquisitions times are often required due to the relatively small Raman scattering cross sections. To overcome these limitations, Raman signal enhancing methods like resonance Raman scattering and surface enhanced Raman scattering can be applied that also reduce the spectral complexity because the enhancement is often restricted to selected bands...
November 15, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27857058/molecular-imaging-and-cancer-gene-therapy
#7
REVIEW
Z Saadatpour, G Bjorklund, S Chirumbolo, M Alimohammadi, H Ehsani, H Ebrahiminejad, H Pourghadamyari, B Baghaei, H R Mirzaei, A Sahebkar, H Mirzaei, M Keshavarzi
Gene therapy is known as one of the most advanced approaches for therapeutic prospects ranging from tackling genetic diseases to combating cancer. In this approach, different viral and nonviral vector systems such as retrovirus, lentivirus, plasmid and transposon have been designed and employed. These vector systems are designed to target different therapeutic genes in various tissues and cells such as tumor cells. Therefore, detection of the vectors containing therapeutic genes and monitoring of response to the treatment are the main issues that are commonly faced by researchers...
November 18, 2016: Cancer Gene Therapy
https://www.readbyqxmd.com/read/27857042/odontogenic-keratocysts-in-the-basal-cell-nevus-gorlin-goltz-syndrome-associated-with-paresthesia-of-the-lower-jaw-case-report-retrospective-analysis-of-a-representative-czech-cohort-and-recommendations-for-the-early-diagnosis
#8
(no author information available yet)
OBJECTIVES: Identification of early presenting signs of the Basal Cell Nevus (BCNS; synonyme Gorlin-Goltz) syndrome, which is associated with a principal triad of multiple basal cell nevi, jaw odontogenic keratocysts, and skeletal anomalies, in stomatological and neurological practices. Proposal of multidisciplinary diagnostic algorithm comprising other medical specialists, including pathology, imaging, laboratory and molecular analyses based on the study outcomes. DESIGN: Case report of a male patient reporting paresthesia of their lower jaw, with right facial asymmetry (maxilla and mandible) and radiological detection of large osteolytic lesions in both jaws, including a retrospective analysis of a representative Czech cohort with BCNS from within the last decade...
September 18, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/27856506/risk-assessment-of-maternally-inherited-sdhd-paraganglioma-and-phaeochromocytoma
#9
Nelly Burnichon, Jean-Michaël Mazzella, Delphine Drui, Laurence Amar, Jérôme Bertherat, Isabelle Coupier, Brigitte Delemer, Isabelle Guilhem, Philippe Herman, Véronique Kerlan, Antoine Tabarin, Nelly Wion, Khadija Lahlou-Laforet, Judith Favier, Anne-Paule Gimenez-Roqueplo
BACKGROUND: Germline mutations in the SDHD tumour suppressor gene (11q23.1) predispose to phaeochromocytomas and paragangliomas (PPGL) mainly on a paternal transmission. However, PPGL have been recently reported in three carriers of a maternally inherited SDHD mutation. OBJECTIVE: To assess the risk of PPGL occurrence on maternal transmission of SDHD mutation. METHODS: Pedigrees of 80 SDHD-related families have been reviewed. 35 asymptomatic subjects carrying a maternally transmitted SDHD mutation were identified...
November 17, 2016: Journal of Medical Genetics
https://www.readbyqxmd.com/read/27845659/pipe-phantoms-with-applications-in-molecular-imaging-and-system-characterization
#10
Shiying Wang, Elizabeth B Herbst, Stephen D Pye, Carmel M Moran, John A Hossack
Pipe (vessel) phantoms mimicking human tissue and blood flow are widely used for cardiovascular related research in medical ultrasound. Pipe phantom studies require the development of materials and liquids that match the acoustic properties of soft tissue, blood vessel wall, and blood. Over recent years, pipe phantoms have been developed to mimic the molecular properties of the simulated blood vessels. In this paper, the design, construction, and functionalization of pipe phantoms are introduced and validated for applications in molecular imaging and ultrasound imaging system characterization...
November 9, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27843641/esmo-asco-recommendations-for-a-global-curriculum-in-medical-oncology-edition-2016
#11
REVIEW
Christian Dittrich, Michael Kosty, Svetlana Jezdic, Doug Pyle, Rossana Berardi, Jonas Bergh, Nagi El-Saghir, Jean-Pierre Lotz, Pia Österlund, Nicholas Pavlidis, Gunta Purkalne, Ahmad Awada, Susana Banerjee, Smita Bhatia, Jan Bogaerts, Jan Buckner, Fatima Cardoso, Paolo Casali, Edward Chu, Julia Lee Close, Bertrand Coiffier, Roisin Connolly, Sarah Coupland, Luigi De Petris, Maria De Santis, Elisabeth G E de Vries, Don S Dizon, Jennifer Duff, Linda R Duska, Alexandru Eniu, Marc Ernstoff, Enriqueta Felip, Martin F Fey, Jill Gilbert, Nicolas Girard, Andor W J M Glaudemans, Priya K Gopalan, Axel Grothey, Stephen M Hahn, Diana Hanna, Christian Herold, Jørn Herrstedt, Krisztian Homicsko, Dennie V Jones, Lorenz Jost, Ulrich Keilholz, Saad Khan, Alexander Kiss, Claus-Henning Köhne, Rainer Kunstfeld, Heinz-Josef Lenz, Stuart Lichtman, Lisa Licitra, Thomas Lion, Saskia Litière, Lifang Liu, Patrick J Loehrer, Merry Jennifer Markham, Ben Markman, Marius Mayerhoefer, Johannes G Meran, Olivier Michielin, Elizabeth Charlotte Moser, Giannis Mountzios, Timothy Moynihan, Torsten Nielsen, Yuichiro Ohe, Kjell Öberg, Antonio Palumbo, Fedro Alessandro Peccatori, Michael Pfeilstöcker, Chandrajit Raut, Scot C Remick, Mark Robson, Piotr Rutkowski, Roberto Salgado, Lidia Schapira, Eva Schernhammer, Martin Schlumberger, Hans-Joachim Schmoll, Lowell Schnipper, Cristiana Sessa, Charles L Shapiro, Julie Steele, Cora N Sternberg, Friedrich Stiefel, Florian Strasser, Roger Stupp, Richard Sullivan, Josep Tabernero, Luzia Travado, Marcel Verheij, Emile Voest, Everett Vokes, Jamie Von Roenn, Jeffrey S Weber, Hans Wildiers, Yosef Yarden
The European Society for Medical Oncology (ESMO) and the American Society of Clinical Oncology (ASCO) are publishing a new edition of the ESMO/ASCO Global Curriculum (GC) thanks to contribution of 64 ESMO-appointed and 32 ASCO-appointed authors. First published in 2004 and updated in 2010, the GC edition 2016 answers to the need for updated recommendations for the training of physicians in medical oncology by defining the standard to be fulfilled to qualify as medical oncologists. At times of internationalisation of healthcare and increased mobility of patients and physicians, the GC aims to provide state-of-the-art cancer care to all patients wherever they live...
2016: ESMO Open
https://www.readbyqxmd.com/read/27808486/novel-acquisitions-in-the-diagnosis-of-medullary-thyroid-carcinoma
#12
Pierpaolo Trimboli, Anna Crescenzi, Enrico Saggiorato, Giorgio Treglia, Luca Giovanella
BACKGROUND: The correct identification of medullary thyroid carcinoma (MTC) has been a challenge since its first description. In the last years some advances in this context have been achieved. Here we aimed to review and discuss published data on the more recent acquisition in the diagnosis of MTC. METHODS: A literature search of the medical databases was conducted by searching papers reporting tool for diagnosis of MTC published in the last years. The search was updated until July 2016...
November 3, 2016: Minerva Endocrinologica
https://www.readbyqxmd.com/read/27807748/medical-imaging-informatics
#13
William Hsu, Suzie El-Saden, Ricky K Taira
Imaging is one of the most important sources of clinically observable evidence that provides broad coverage, can provide insight on low-level scale properties, is noninvasive, has few side effects, and can be performed frequently. Thus, imaging data provides a viable observable that can facilitate the instantiation of a theoretical understanding of a disease for a particular patient context by connecting imaging findings to other biologic parameters in the model (e.g., genetic, molecular, symptoms, and patient survival)...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27806195/development-of-new-positron-emission-tomography-radiotracer-for-bet-imaging
#14
Changning Wang, Frederick A Schroeder, Jacob M Hooker
The bromodomain and extra-terminal domain (BET) inhibitors have been extensively studied for tumor treatment in the past few years. Recently, BET-containing proteins have been reported to play a key role in brain functions, such as learning and memory. BET proteins have also been shown to be a potential therapeutic target for substance abuse disorders. Development of a molecular probe for non-invasive imaging will elucidate the distribution and functional roles of BET in the living subject and accelerate medical research and drug discovery in this domain...
November 2, 2016: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/27804869/advances-in-medicinal-plants-with-effects-on-anxiety-behavior-associated-to-mental-and-health-conditions
#15
Valentina Echeverria, Gjumrakch Aliev, Madeline Foitzick, Marco Ávila-Rodriguez, George E Barreto
BACKGROUND: Many mental health conditions including psychiatric disorders and neurodegenerative conditions are poorly responsive to actual medications or have low patient adherence to treatment due to the side effects or costs associated with these treatments. OBJECTIVE: The main goal of this review is to provide clinical providers and patients with actualized information about the efficacy of selected herbal medicines for anxiety disorders derived from mental and/or health conditions, and their associated side effects...
November 1, 2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27798490/the-future-of-imaging-in-cardiovascular-disease-intervention-trials-2017-and-beyond
#16
Mhairi K Doris, Marc R Dweck, Zahi A Fayad
PURPOSE OF REVIEW: As our understanding of cardiovascular disease has advanced over the past decades, multiple novel treatment strategies have been developed with the hope of reducing the global morbidity and mortality associated with this condition. Large-scale trials to test such novel therapies using clinical end points are expensive, leading to interest in phase II clinical trials with imaging-derived outcome measures. RECENT FINDINGS: Noninvasive imaging techniques that assess changes in both atherosclerotic disease burden and plaque composition in response to therapy are well established...
December 2016: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/27793541/comparison-of-culture-and-pcr-methods-in-the-diagnosis-of-bacterial-meningitis
#17
Emel Ödemiş Başpınar, Saim Dayan, Muhammed Bekçibaşı, Recep Tekin, Celal Ayaz, Özcan Deveci, Salih Hoşoğlu
Our aim in this study is to compare the standard culture method with the multiplex PCR and the Speed-Oligo(®) Bacterial Meningitis Test (SO-BMT) - a hybridization-based molecular test method - during the CSF examination of the patients with the pre-diagnosis of acute bacterial meningitis. For the purposes of this study, patients with acute bacterial meningitis treated at the Dicle University Medical Faculty Hospital, Infectious Diseases and Clinical Microbiology Clinic between December 2009 and April 2012 were retrospectively evaluated...
October 6, 2016: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/27785420/why-are-upper-tract-urothelial-carcinoma-two-different-diseases
#18
REVIEW
Tibor Szarvas, Orsolya Módos, András Horváth, Péter Nyirády
In the last few years growing evidence highlighted the differences between upper tract urothelial carcinoma (UTUC) and urothelial bladder carcinoma (UBC) which cannot be explained solely by their different anatomical location. The aim of this review was to summarize current progress in UTUC research and to underline the differences and similarities between UTUC and UBC by focusing on epidemiology, etiology, staging and risk factors as well as on surgical and medical management. UBC and UTUC sharing common risk factors such as smoking and aromatic amines, while aristolochic acid exposure or familiar Lynch syndrome are rather specific for UTUC...
October 2016: Translational Andrology and Urology
https://www.readbyqxmd.com/read/27778296/somatostatin-receptor-ligands-in-acromegaly-clinical-response-and-factors-predicting-resistance
#19
Rosa Maria Paragliola, Salvatore Maria Corsello, Roberto Salvatori
INTRODUCTION: Somatostatin (SST) receptor ligands (SRL), in particular those of first generation (Octreotide and Lanreotide), are widely used in medical treatment of acromegaly, but they assure biochemical control of disease (and the possibility of an improvement of clinical symptoms and tumor shrinkage), only in a subset of patients. DISCUSSION: The mechanisms underlying the so called "SRL resistance" are various and involve in particular SST receptor expression and molecular pathways of signal transduction...
October 24, 2016: Pituitary
https://www.readbyqxmd.com/read/27778167/structural-classification-of-proteins-using-texture-descriptors-extracted-from-the-cellular-automata-image
#20
Hamidreza Kavianpour, Mahdi Vasighi
Nowadays, having knowledge about cellular attributes of proteins has an important role in pharmacy, medical science and molecular biology. These attributes are closely correlated with the function and three-dimensional structure of proteins. Knowledge of protein structural class is used by various methods for better understanding the protein functionality and folding patterns. Computational methods and intelligence systems can have an important role in performing structural classification of proteins. Most of protein sequences are saved in databanks as characters and strings and a numerical representation is essential for applying machine learning methods...
October 24, 2016: Amino Acids
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