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Tissue Characterization

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https://www.readbyqxmd.com/read/29342430/tissue-expander-stimulated-lengthening-of-arteries-for-the-treatment-of-midaortic-syndrome-in-children
#1
Heung Bae Kim, Gabriel J Ramos-Gonzalez, Khashayar Vakili, Deborah R Stein, Michael A Ferguson, Diego Porras, James E Lock, Gulraiz Chaudry, Ahmad Alomari, Steven J Fishman
BACKGROUND: Midaortic syndrome (MAS) is a rare condition characterized by stenosis of the abdominal aorta. Patients with disease refractory to medical management will usually require either endovascular therapy or surgery with use of prosthetic graft material for bypass or patch angioplasty. We report our early experience with a novel approach using a tissue expander (TE) to lengthen the normal native arteries in children with MAS, allowing primary aortic repair without the need for prosthetic graft material...
January 13, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29342223/development-of-a-job-exposure-matrix-for-noise-in-the-swedish-soft-tissue-paper-industry
#2
Richard Lee Neitzel, Marianne Andersson, Helena Eriksson, Kjell Torén, Eva Andersson
Objectives: Noise exposure is a common occupational hazard, but has not been sufficiently characterized in paper mills. We developed a job-exposure matrix (JEM) for noise exposure for use in estimating exposures among Swedish soft tissue paper mill workers. Methods: We used a combination of area and personal dosimetry noise exposure measurements made at four soft tissue paper mills by industry and research staff between 1977 and 2013 to estimate noise exposures by department, location, and job title...
December 16, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/29342097/time-domain-near-infrared-spectroscopy-device-for-monitoring-muscle-oxidative-metabolism-custom-probe-and-in-vivo-applications
#3
Rebecca Re, Ileana Pirovano, Davide Contini, Lorenzo Spinelli, Alessandro Torricelli
Measurement of muscle oxidative metabolism is of interest for monitoring the training status in athletes and the rehabilitation process in patients. Time domain near infrared spectroscopy (TD NIRS) is an optical technique that allows the non-invasive measurement of the hemodynamic parameters in muscular tissue: concentrations of oxy- and deoxy-hemoglobin, total hemoglobin content, and tissue oxygen saturation. In this paper, we present a novel TD NIRS medical device for muscle oxidative metabolism. A custom-printed 3D probe, able to host optical elements for signal acquisition from muscle, was develop for TD NIRS in vivo measurements...
January 17, 2018: Sensors
https://www.readbyqxmd.com/read/29342094/telomeric-repeat-containing-rnas-terra-decrease-in-squamous-cell-carcinoma-of-the-head-and-neck-is-associated-with-worsened-clinical-outcome
#4
Valerio Vitelli, Paolo Falvo, Solomon G Nergadze, Marco Santagostino, Lela Khoriauli, Paola Pellanda, Giulia Bertino, Antonio Occhini, Marco Benazzo, Patrizia Morbini, Marco Paulli, Camillo Porta, Elena Giulotto
Telomeres are transcribed into noncoding telomeric repeat-containing RNAs (TERRA), which are essential for telomere maintenance. Deregulation of TERRA transcription impairs telomere metabolism and a role in tumorigenesis has been proposed. Head and neck cancer (HNC) is one of the most frequent cancers worldwide, with head and neck squamous cell carcinoma (HNSCC) being the predominant type. Since HNSCC patients are characterized by altered telomere maintenance, a dysfunction in telomere transcription can be hypothesized...
January 17, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29342032/angiomatosis-of-the-orbit-clinical-imaging-and-histologic-findings
#5
Kaveh Vahdani, Yoon-Duck Kim, Yeon-Lim Suh, Jeong Hee Kim
Angiomatosis is a complex vascular malformation that denotes a clinically extensive hemangioma, which either involves multiple tissue planes or extensively infiltrates 1 type of tissue. It is a rare condition characterized by diffuse proliferation of blood vessels admixed with fat and fibrotic tissue. Typically, this process involves the limbs in multiple tissue planes, including dermis, subcutis, muscle, and bone. In this report, the authors present the first case of angiomatosis infiltrating the orbit, controlled effectively with a combination of systemic steroids, radiation, and beta-blocker therapy...
January 16, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29341944/nuclear-medicine-methods-for-evaluation-of-abnormal-parathyroid-glands-in-patients-with-primary-and-secondary-hyperparathyroidism
#6
Albena D Botushanova, Nikolay P Botushanov, Marianna P Yaneva
Considered rare disease in the past, primary hyperparathyroidism (PHPT) has dramatically increased in incidence over the past thirty years with the introduction of routine calcium measurements; it is now approximately 42 per 100 000 persons. By far, the most common lesion found in patients with PHPT is the solitary parathyroid adenoma, occurring in 85%-90% of patients, while in the rest 10%- 15% primary hyperplasia of the parathyroid glands is present. Currently, the most widely used surgical approach is minimally invasive parathyroidectomy which is associated with less post-surgery complications and shorter operation time...
December 20, 2017: Folia Medica
https://www.readbyqxmd.com/read/29341600/combination-of-heparin-binding-peptide-and-heparin-cell-surface-coatings-for-mesenchymal-stem-cell-spheroid-assembly
#7
Jennifer Lei, William L Murphy, Johnna S Temenoff
Microtissues containing multiple cell types have been used in both in vitro models and in vivo tissue repair applications. However, to improve through-put, there is a need to develop a platform that supports self-assembly of a large number of 3D microtissues containing multiple cell types in a dynamic suspension system. Thus, the objective of this study was to exploit the binding interaction between the negatively charged glycosaminoglycan, heparin, and a known heparin binding peptide to establish a method that promotes assembly of mesenchymal stem cell (MSC) spheroids into larger aggregates...
January 17, 2018: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29341468/downregulation-of-barh-like-homeobox-2-promotes-cell-proliferation-migration-and-aerobic-glycolysis-through-wnt-%C3%AE-catenin-signaling-and-predicts-a-poor-prognosis-in-non-small-cell-lung-carcinoma
#8
Hao Chen, Maowei Zhang, Wenhui Zhang, Yuanqin Li, Jiechen Zhu, Xiaojiao Zhang, Li Zhao, Shuyang Zhu, Bi Chen
BACKGROUND: Human BarH-like homeobox 2 (Barx2), a homeodomain factor of the Bar family, plays a critical role in cell adhesion and cytoskeleton remodeling, and has been reported in an increasing array of tumor types except non-small cell lung carcinoma (NSCLC). The purpose of the current study was to characterize the expression of Barx2 and assess the clinical significance of Barx2 in NSCLC. METHODS: Quantitative real-time polymerase chain reaction, immunohistochemistry and western blot analysis were used to examine mRNA and protein expression, respectively...
January 17, 2018: Thoracic Cancer
https://www.readbyqxmd.com/read/29341450/characterization-of-a-novel-papain-inducible-murine-model-of-eosinophilic-rhinosinusitis
#9
Anuj Tharakan, Alex Dobzanski, Nyall R London, Syed M Khalil, Nitya Surya, Andrew P Lane, Murugappan Ramanathan
BACKGROUND: Eosinophilic chronic rhinosinusitis (ECRS) is a disease characterized by eosinophilic inflammatory infiltrate and a local type 2 cytokine milieu. Current animal models fail to recapitulate many of the innate and adaptive immunologic hallmarks of the disease, thus hindering the development of effective therapeutics. In the present study, mice were exposed intranasally to the cysteine protease papain, which shares functional similarities with parasitic proteases and aeroallergens, to generate a rapidly inducible murine model of eosinophilic rhinosinusitis...
January 17, 2018: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29341328/histiocytosis-cutaneous-manifestations-of-hematopoietic-neoplasm-and-non-neoplastic-histiocytic-proliferations
#10
REVIEW
C M Luder, T M Nordmann, E Ramelyte, B Mühleisen, K Kerl, O Boyman, E Guenova, R Dummer
Histiocytoses are rare disorders characterized by the accumulation of cells derived from macrophages, dendritic cells, or monocytes in various tissues. There is a broad spectrum of disease manifestations with some subtypes commonly showing skin lesions while in others the skin is rarely involved. Here we describe cutaneous manifestations of histiocytoses belonging to the Langerhans group (L group), the group of cutaneous and mucocutaneous histiocytoses (C group) and the group of Rosai-Dorfman disease and related histiocytoses (R group) according to the current classification...
January 16, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29341322/isthmus-sites-identified-by-ripple-mapping-are-usually-anatomically-stable-a-novel-method-to-guide-atrial-substrate-ablation
#11
Vishal Luther, Norman Qureshi, Phang Boon Lim, Michael Koa-Wing, Shahnaz Jamil-Copley, Fu Siong Ng, Zachary Whinnett, D Wyn Davies, Nicholas S Peters, Prapa Kanagaratnam, Nick Linton
BACKGROUND: Post ablation reentrant ATs depend upon conducting isthmuses bordered by scar. Bipolar voltage maps highlight scar as sites of low voltage, but the voltage amplitude of an electrogram depends upon the myocardial activation sequence. Furthermore, a voltage threshold that defines atrial scar is unknown. We used Ripple Mapping (RM) to test whether these isthmuses were anatomically fixed between different activation vectors and atrial rates. METHODS: We studied post-AF ablation ATs where > 1 rhythm was mapped...
January 17, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29341283/mogamulizumab-induced-phosensitivity-in-patients-with-mycosis-fungoides-and-other-t-cell-neoplasms
#12
Y Masuda, K Tatsuno, S Kitano, H Miyazawa, J Ishibe, M Aoshima, T Shimauchi, T Fujiyama, T Ito, Y Tokura
BACKGROUND: Mogamulizumab (Mog) is a defucosylated, therapeutic monoclonal antibody, targeting CCR4, and was first approved in Japan for the treatment of adult T cell leukaemia/lymphoma (ATLL), followed by cutaneous T cell lymphoma and peripheral T cell lymphoma. OBJECTIVE: To retrospectively investigate development of photosensitivity in patients with mycosis fungoides and other T cell neoplasms after treatment with Mog. METHODS: We treated 7 cutaneous lymphoma patients with Mog...
January 16, 2018: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29341227/pet-radiometals-for-antibody-labeling
#13
Eduardo Aluicio-Sarduy, Paul A Ellison, Todd E Barnhart, Weibo Cai, Robert Jerry Nickles, Jonathan W Engle
Recent advances in molecular characterization of tumors have made possible the emergence of new types of cancer therapies where the traditional cytotoxic drugs and nonspecific chemotherapy can be complemented with targeted molecular therapies. One of the main revolutionary treatments is the use of monoclonal antibodies (mAbs) that selectively target the disseminated tumor cells while sparing normal tissues. mAbs and related therapeutics can be efficiently radiolabeled with a wide range of radionuclides to facilitate preclinical and clinical studies...
January 17, 2018: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/29341225/past-and-present-mercury-accumulation-in-the-lake-baikal-seal-temporal-trends-effects-of-life-history-and-toxicological-implications
#14
Amanda E Poste, Mikhail V Pastukhov, Hans Fredrik Veiteberg Braaten, Ted Ozersky, Marianne Moore
Despite global efforts to reduce anthropogenic mercury (Hg) emissions, the timescale and degree to which Hg concentrations in the environment and biota respond to decreased emissions remains challenging to assess or predict. Here we characterize long-term trends, life-history patterns in Hg accumulation and toxicological implications of Hg contamination for a freshwater seal from one of the world's largest lakes (Lake Baikal, Siberia) using contemporary tissues and archival teeth. Stable isotope analysis and Hg analyses of soft tissues (muscle, liver, kidney, blood, brain, heart) and teeth from 22 contemporary seals revealed rapid changes in diet and Hg accumulation in the first year of life with a stable diet and increase in tissue Hg throughout the rest of life...
January 17, 2018: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29341219/current-knowledge-of-nocardiosis-in-teleost-fish
#15
REVIEW
S Maekawa, T Yoshida, P-C Wang, S-C Chen
Nocardia sp. is the causative agent of nocardiosis, a lethal granulomatous disease of the skin, muscle, and various inner tissues affecting various teleost and shellfish. Four species of Nocardia have been isolated from diseased fish and shellfish, namely Nocardia asteroides, Nocardia seriolae, Nocardia salmonicida and Nocardia crassostreae. Therefore, in fish aquaculture, nocardiosis has caused severe economic losses, especially in the Asian region. Considerable research has been performed, since the first report of identified Nocardia sp...
January 17, 2018: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29341105/metabolomic-characterization-of-human-hippocampus-from-drug-resistant-epilepsy-with-mesial-temporal-seizure
#16
Julien Detour, Caroline Bund, Charles Behr, Hélène Cebula, Ercument A Cicek, Maria-Paola Valenti-Hirsch, Béatrice Lannes, Benoît Lhermitte, Astrid Nehlig, Pierre Kehrli, François Proust, Edouard Hirsch, Izzie-Jacques Namer
OBJECTIVE: Within a complex systems biology perspective, we wished to assess whether hippocampi with established neuropathological features have distinct metabolome. Apparently normal hippocampi with no signs of sclerosis (noHS), were compared to hippocampal sclerosis (HS) type 1 (HS1) and/or type 2 (HS2). Hippocampus metabolome from patients with epilepsy-associated neuroepithelial tumors (EANTs), namely, gangliogliomas (GGs) and dysembryoplastic neuroepithelial tumors (DNTs), was also compared to noHS epileptiform tissue...
January 17, 2018: Epilepsia
https://www.readbyqxmd.com/read/29341020/mri-in-the-study-of-animal-models-of-stroke
#17
Pedro Ramos-Cabrer, Daniel Padro
Stroke consists of the loss of cerebral functions resulting from the interruption of blood supply to a region of the brain, and represents the second cause of death and the leading cause of major disability in adults in Europe. Stroke is a very active field of research at preclinical and clinical levels, and Magnetic Resonance Imaging (MRI) is one of the most powerful tools that scientist and clinicians have for the study of the onset, evolution and consequences of this devastating disease, as well as for the monitoring of the success of available treatments, or for the development of novel therapeutic strategies...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29340903/characterization-of-ent-kaurene-synthase-and-kaurene-oxidase-involved-in-gibberellin-biosynthesis-from-scoparia-dulcis
#18
Yoshimi Yamamura, Yukari Taguchi, Kei Ichitani, Io Umebara, Ayako Ohshita, Fumiya Kurosaki, Jung-Bum Lee
Gibberellins (GAs) are ubiquitous diterpenoids in higher plants, whereas some higher plants produce unique species-specific diterpenoids. In GA biosynthesis, ent-kaurene synthase (KS) and ent-kaurene oxidase (KO) are key players which catalyze early step(s) of the cyclization and oxidation reactions. We have studied the functional characterization of gene products of a KS (SdKS) and two KOs (SdKO1 and SdKO2) involved in GA biosynthesis in Scoparia dulcis. Using an in vivo heterologous expression system of Escherichia coli, we found that SdKS catalyzed a cyclization reaction from ent-CPP to ent-kaurene and that the SdKOs oxidized ent-kaurene to ent-kaurenoic acid after modification of the N-terminal region for adaptation to the E...
January 16, 2018: Journal of Natural Medicines
https://www.readbyqxmd.com/read/29340518/rankl-expression-predicts-poor-prognosis-in-gastric-cancer-patients-results-from-a-retrospective-and-single-center-analysis
#19
X Zhang, Y Song, N Song, L Zhang, Y Wang, D Li, Z Wang, X Qu, Y Liu
The receptor activator of nuclear factor κB ligand (RANKL)/RANK pathway plays an important role in the prognosis of several solid tumor types, but its role in gastric cancer prognosis has been poorly characterized. A total of 116 gastric cancer patients who underwent surgical resection were enrolled in this study. Expressions of RANKL and RANK in gastric cancer tissues were detected using immunohistochemical staining. Thirty-eight patients (33%) showed a high level of RANKL expression and 61 patients (53%) showed a high level of RANK expression...
January 11, 2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29340218/synthesis-and-characterization-of-hybrid-core-shell-fe3o4-sio2-nanoparticles-for-biomedical-applications
#20
I V Zelepukin, V O Shipunova, A B Mirkasymov, P I Nikitin, M P Nikitin, S M Deyev
The creation of markers that provide both visual and quantitative information is of considerable importance for the mapping of tissue macrophages and other cells. We synthesized magnetic and magneto-fluorescent nanomarkers for the labeling of cells which can be detected with high sensitivity by the magnetic particle quantification (MPQ) technique. For stabilization under physiological conditions, the markers were coated with a dense silica shell. In this case, the size and zeta-potential of nanoparticles were controlled by a modified Stober reaction...
October 2017: Acta Naturae
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