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https://www.readbyqxmd.com/read/27915073/a-mathematical-model-of-reward-and-executive-circuitry-in-obsessive-compulsive-disorder
#1
Anca Raˇdulescu, Rachel Marra
The neuronal circuit that controls obsessive and compulsive behaviors involves a complex network of brain regions (some with known involvement in reward processing). Among these are cortical regions, the striatum and the thalamus (which compose the CSTC pathway), limbic areas such as the amygdala and the hippocampus, and well as dopamine pathways. Abnormal dynamic behavior in this brain network is a hallmark feature of patients with increased anxiety and motor activity, like the ones affected by OCD. There is currently no clear understanding of precisely what mechanisms generate these behaviors...
November 30, 2016: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/27913065/hpv-status-cancer-stem-cell-marker-expression-hypoxia-gene-signatures-and-tumour-volume-identify-good-prognosis-subgroups-in-patients-with-hnscc-after-primary-radiochemotherapy-a-multicentre-retrospective-study-of-the-german-cancer-consortium-radiation-oncology
#2
Annett Linge, Fabian Lohaus, Steffen Löck, Alexander Nowak, Volker Gudziol, Chiara Valentini, Cläre von Neubeck, Martin Jütz, Inge Tinhofer, Volker Budach, Ali Sak, Martin Stuschke, Panagiotis Balermpas, Claus Rödel, Anca-Ligia Grosu, Amir Abdollahi, Jürgen Debus, Ute Ganswindt, Claus Belka, Steffi Pigorsch, Stephanie E Combs, David Mönnich, Daniel Zips, Frank Buchholz, Daniela E Aust, Gustavo B Baretton, Howard D Thames, Anna Dubrovska, Jan Alsner, Jens Overgaard, Mechthild Krause, Michael Baumann
OBJECTIVE: To investigate the impact of the tumour volume, HPV status, cancer stem cell (CSC) marker expression and hypoxia gene signatures, as potential markers of radiobiological mechanisms of radioresistance, in a contemporary cohort of patients with locally advanced head and neck squamous cell carcinoma (HNSCC), who received primary radiochemotherapy (RCTx). MATERIALS AND METHODS: For 158 patients with locally advanced HNSCC of the oral cavity, oropharynx or hypopharynx who were treated at six DKTK partner sites, the impact of tumour volume, HPV DNA, p16 overexpression, p53 expression, CSC marker expression and hypoxia-associated gene signatures on outcome of primary RCTx was retrospectively analyzed...
November 29, 2016: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/27861923/evaluating-the-utility-of-serological-testing-in-laryngotracheal-stenosis
#3
S Ryan Hall, Clint T Allen, Albert L Merati, Ross M Mayerhoff
OBJECTIVES/HYPOTHESIS: Whereas mechanical (traumatic) causes of laryngotracheal stenosis (LTS) are identified based on history, autoimmune laryngotracheal stenosis (aLTS) and idiopathic laryngotracheal stenosis (iLTS) are often more difficult to differentiate. The objective of this study was to evaluate serologic testing in a large cohort of nonmechanical LTS patients to determine which tests, if any, lead clinicians to the etiology of the LTS. STUDY DESIGN: Retrospective chart review...
November 12, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27857778/state-of-acute-agitation-at-psychiatric-emergencies-in-europe-the-stage-study
#4
Luis San, Josef Marksteiner, Peter Zwanzger, María Aragüés Figuero, Francisco Toledo Romero, Grigorios Kyropoulos, Alberto Bessa Peixoto, Roxana Chirita, Anca Boldeanu
BACKGROUND: Agitation is an array of syndromes and types of behaviors that are common in patients with psychiatric disorders. In Europe, the estimation of prevalence of agitation has been difficult due to the lack of standard studies or systematic data collection done on this syndrome. OBJECTIVE: An observational, cross-sectional, multicenter study aimed to assess the prevalence of agitation episodes in psychiatric emergencies in different European countries. METHOD: For 1 week, all episodes of acute agitation that were attended to at the psychiatric emergency room (ER) or Acute Inpatient Unit (AIU) in the 27 participating centers were registered...
2016: Clinical Practice and Epidemiology in Mental Health: CP & EMH
https://www.readbyqxmd.com/read/27830351/antineutrophil-cytoplasmic-antibody-associated-glomerulonephritis-with-immunoglobulin-deposition
#5
Orie Hirose, Mitsuyo Itabashi, Takashi Takei, Kazuho Honda, Kosaku Nitta
BACKGROUND: Antineutrophil cytoplasmic antibody (ANCA)-associated glomerulonephritis is commonly classified as pauci-immune glomerulonephritis; however, some cases have granular immunoglobulin deposition along the glomerular capillary. The pathogenesis of immune deposits is poorly studied. METHODS: Of 66 patients diagnosed with ANCA-associated glomerulonephritis on renal biopsy, cases with immunoglobulin deposition along the glomerular capillary were identified and their clinicopathological characteristics were analyzed...
November 9, 2016: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/27813340/variation-in-treatment-of-children-hospitalized-with-antineutrophil-cytoplasmic-antibody-associated-vasculitis-in-the-united-states
#6
Karen E James, Rui Xiao, Peter A Merkel, Pamela F Weiss
OBJECTIVE: There are few reports on treatment of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) in children. This study characterizes the use of cyclophosphamide, rituximab, and plasma exchange in children hospitalized with AAV in the United States. METHODS: We conducted a retrospective cohort study of children hospitalized with AAV from 2004-2014 utilizing an administrative and billing database from 47 tertiary care pediatric hospitals. All patients had an ICD-9-CM discharge code of 446...
November 3, 2016: Arthritis Care & Research
https://www.readbyqxmd.com/read/27752292/histone-modification-signature-at-myeloperoxidase-and-proteinase-3-in-patients-with-anti-neutrophil-cytoplasmic-autoantibody-associated-vasculitis
#7
Jiajin Yang, Heng Ge, Caroline J Poulton, Susan L Hogan, Yichun Hu, Britta E Jones, Candace D Henderson, Elizabeth A McInnis, William F Pendergraft, J Charles Jennette, Ronald J Falk, Dominic J Ciavatta
BACKGROUND: Anti-neutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis (AAV) is a systemic autoimmune disease characterized by destructive vascular inflammation. Two prominent ANCA autoantigens are myeloperoxidase (MPO) and proteinase 3 (PR3), and transcription of MPO and PRTN3, the genes encoding the autoantigens, is associated with disease activity. We investigated whether patients with AAV have alterations in histone modifications, particularly those associated with transcriptional activation, at MPO and PRTN3...
2016: Clinical Epigenetics
https://www.readbyqxmd.com/read/27746047/ribonuclease-mediated-control-of-body-fat
#8
Cornelia Habacher, Yanwu Guo, Richard Venz, Pooja Kumari, Anca Neagu, Dimos Gaidatzis, Eva B Harvald, Nils J Færgeman, Heinz Gut, Rafal Ciosk
Obesity is a global health issue, arousing interest in molecular mechanisms controlling fat. Transcriptional regulation of fat has received much attention, and key transcription factors involved in lipid metabolism, such as SBP-1/SREBP, LPD-2/C/EBP, and MDT-15, are conserved from nematodes to mammals. However, there is a growing awareness that lipid metabolism can also be controlled by post-transcriptional mechanisms. Here, we show that the Caenorhabditis elegans RNase, REGE-1, related to MCPIP1/Zc3h12a/Regnase-1, a key regulator of mammalian innate immunity, promotes accumulation of body fat...
October 7, 2016: Developmental Cell
https://www.readbyqxmd.com/read/27730302/systems-biology-and-genome-wide-approaches-to-unveil-the-molecular-players-involved-in-the-pre-germinative-metabolism-implications-on-seed-technology-traits
#9
Anca Macovei, Andrea Pagano, Paola Leonetti, Daniela Carbonera, Alma Balestrazzi, Susana S Araújo
The pre-germinative metabolism is among the most fascinating aspects of seed biology. The early seed germination phase, or pre-germination, is characterized by rapid water uptake (imbibition), which directs a series of dynamic biochemical events. Among those are enzyme activation, DNA damage and repair, and use of reserve storage compounds, such as lipids, carbohydrates and proteins. Industrial seedling production and intensive agricultural production systems require seed stocks with high rate of synchronized germination and low dormancy...
October 11, 2016: Plant Cell Reports
https://www.readbyqxmd.com/read/27721869/a-congenital-gerbode-defect-associated-with-a-rare-structural-abnormality-of-the-mitral-valve-diagnosed-in-an-adult-patient
#10
Anca D Mateescu, Ioan M Coman, Carmen C Beladan, Bogdan Radulescu, Carmen Ginghina, Bogdan A Popescu
We report the case of a rare association of a congenital Gerbode defect with severe mitral regurgitation due to abnormal linear structure of mitral valve, diagnosed in an adult patient. The case highlights the importance of a thorough examination interpreting the echocardiographic findings on a pathophysiological basis. It also underlines the complementary role of different imaging techniques with transesophageal echocardiography, allowing the precise assessment of both structural and functional abnormalities in such a complex case...
September 2016: Korean Circulation Journal
https://www.readbyqxmd.com/read/27712544/internet-delivered-transdiagnostic-and-tailored-cognitive-behavioral-therapy-for-anxiety-and-depression-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#11
Costina Ruxandra Păsărelu, Gerhard Andersson, Lise Bergman Nordgren, Anca Dobrean
Anxiety and depressive disorders are often comorbid. Transdiagnostic and tailored treatments seem to be promising approaches in dealing with comorbidity. Although several primary studies have examined the effects of Internet-delivered cognitive behavior therapy (iCBT) for anxiety and depression, no meta-analysis including different types of iCBT that address comorbidity has been conducted so far. We conducted systematic searches in databases up to 1 July 2016. Only randomized trials comparing transdiagnostic/tailored iCBT for adult anxiety and/or depression with control groups were included...
October 7, 2016: Cognitive Behaviour Therapy
https://www.readbyqxmd.com/read/27704295/do-cad-cam-dentures-really-release-less-monomer-than-conventional-dentures
#12
Patricia-Anca Steinmassl, Verena Wiedemair, Christian Huck, Florian Klaunzer, Otto Steinmassl, Ingrid Grunert, Herbert Dumfahrt
OBJECTIVES: Computer-aided design (CAD)/computer-aided manufacturing (CAM) dentures are assumed to have more favourable material properties than conventionally fabricated dentures, among them a lower methacrylate monomer release. The aim of this study was to test this hypothesis. MATERIALS AND METHODS: CAD/CAM dentures were generated from ten different master casts by using four different CAD/CAM systems. Conventional, heat-polymerised dentures served as control group...
October 5, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/27664383/autoimmunity-basics-and-link-with-periodontal-disease
#13
Gagandeep Kaur, Kanika Mohindra, Shifali Singla
Autoimmune reactions reflect an imbalance between effector and regulatory immune responses, typically develop through stages of initiation and propagation, and often show phases of resolution (indicated by clinical remissions) and exacerbations (indicated by symptomatic flares). The fundamental underlying mechanism of autoimmunity is defective elimination and/or control of self-reactive lymphocytes. Periodontal diseases are characterized by inflammatory conditions that directly affect teeth supporting structures which are the major cause of tooth loss...
September 21, 2016: Autoimmunity Reviews
https://www.readbyqxmd.com/read/27638054/fabrication-and-toxicity-characterization-of-a-hybrid-material-based-on-oxidized-and-aminated-mwcnt-loaded-with-carboplatin
#14
Mihaela Balas, Sabrina Constanda, Adriana Duma-Voiculet, Mariana Prodana, Anca Hermenean, Sevinci Pop, Ioana Demetrescu, Anca Dinischiotu
This study focused on the fabrication and toxicity characterization of a hybrid material-based on the multiple functionalizations of multiwalled carbon nanotubes (MWCNTs) with carboxyl or amino groups and the anti-tumor drug carboplatin (CP). The functionalization was evidenced by Fourier transformed infrared spectroscopy (FTIR) and high performance liquid chromatography (HPLC). The amount of platinum ions released in the simulated body fluid (SBF) was assessed by inductively coupled plasma mass spectrometry (ICP-MS)...
December 2016: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/27630278/lymphangiogenesis-and-anti-lymphangiogenesis-in-cutaneous-melanoma
#15
REVIEW
Marius Raica, Adriana-Andreea Jitariu, Anca Maria Cimpean
Cutaneous malignant melanoma is an aggressive tumor characterized by early lymph node metastasis and bad prognosis. Although the spread of tumor cells in the regional lymph nodes is very important in the staging, prognosis and therapeutic strategy of malignant melanoma, the mechanism(s) of initial lymphatic vessels invasion is are) not completely understood. In the present review, we analyze the main factors involved in melanoma-associated lymphangiogenesis, based on existing available evidence. Currently, there are no anti-lymphangiogenic drugs approved for clinical trials...
September 2016: Anticancer Research
https://www.readbyqxmd.com/read/27616759/il-1%C3%AE-promotes-tubulointerstitial-injury-in-%C3%A2-mpo-anca-associated-glomerulonephritis%C3%A2
#16
Manabu Tashiro, Yoshie Sasatomi, Renya Watanabe, Maho Watanabe, Katsuhisa Miyake, Yasuhiro Abe, Tetsuhiko Yasuno, Kenji Ito, Naoko Ueki, Aki Hamauchi, Ritsuya Noda, Satoshi Hisano, Hitoshi Nakashima
BACKGROUND: It is widely accepted that tubulointerstitial injury (TII) is caused by glomerular injury (GI) in glomerular diseases. Glomerular endocapillary inflammation may result in crescent formation and exuded protein leakage, which may induce TII in antineutrophil cytoplasmic antibody-associated glomerulonephritis (ANCAGN). However, some reports have indicated a glomerulonephritis-independent mechanism of TII in ANCAGN. The aim of this study was to determine the principle cytokines correlated with TII severity and to elucidate a characteristic mechanism for TII in ANCAGN...
October 2016: Clinical Nephrology
https://www.readbyqxmd.com/read/27604805/plasma-membrane-order-and-fluidity-are-diversely-triggered-by-elicitors-of-plant-defence
#17
Roman Sandor, Christophe Der, Kevin Grosjean, Iulia Anca, Elodie Noirot, Nathalie Leborgne-Castel, Jan Lochman, Françoise Simon-Plas, Patricia Gerbeau-Pissot
Although plants are exposed to a great number of pathogens, they usually defend themselves by triggering mechanisms able to limit disease development. Alongside signalling events common to most such incompatible interactions, modifications of plasma membrane (PM) physical properties could be new players in the cell transduction cascade. Different pairs of elicitors (cryptogein, oligogalacturonides, and flagellin) and plant cells (tobacco and Arabidopsis) were used to address the issue of possible modifications of plant PM biophysical properties induced by elicitors and their links to other events of the defence signalling cascade...
September 2016: Journal of Experimental Botany
https://www.readbyqxmd.com/read/27595135/analysis-of-family-structures-reveals-robustness-or-sensitivity-of-bursting-activity-to-parameter-variations-in-a-half-center-oscillator-hco-model
#18
Anca Doloc-Mihu, Ronald L Calabrese
The underlying mechanisms that support robustness in neuronal networks are as yet unknown. However, recent studies provide evidence that neuronal networks are robust to natural variations, modulation, and environmental perturbations of parameters, such as maximal conductances of intrinsic membrane and synaptic currents. Here we sought a method for assessing robustness, which might easily be applied to large brute-force databases of model instances. Starting with groups of instances with appropriate activity (e...
July 2016: ENeuro
https://www.readbyqxmd.com/read/27586688/super-resolution-microscopy-reveals-a-preformed-nemo-lattice-structure-that-is-collapsed-in-incontinentia-pigmenti
#19
Janine Scholefield, Ricardo Henriques, Anca F Savulescu, Elisabeth Fontan, Alix Boucharlat, Emmanuel Laplantine, Asma Smahi, Alain Israël, Fabrice Agou, Musa M Mhlanga
The NF-κB pathway has critical roles in cancer, immunity and inflammatory responses. Understanding the mechanism(s) by which mutations in genes involved in the pathway cause disease has provided valuable insight into its regulation, yet many aspects remain unexplained. Several lines of evidence have led to the hypothesis that the regulatory/sensor protein NEMO acts as a biological binary switch. This hypothesis depends on the formation of a higher-order structure, which has yet to be identified using traditional molecular techniques...
2016: Nature Communications
https://www.readbyqxmd.com/read/27553003/idiopathic-mediastinal-fibrosis-a-systemic-immune-mediated-disorder-a-case-series-and-a-review-of-the-literature
#20
Giovanni M Rossi, Giacomo Emmi, Domenico Corradi, Maria L Urban, Federica Maritati, Federica Landini, Paola Galli, Alessandra Palmisano, Augusto Vaglio
Mediastinal fibrosis is a rare disease characterised by fibrous proliferation in the mediastinum. It can be idiopathic or secondary to several conditions such as infections and malignancies. Anecdotal reports have described idiopathic mediastinal fibrosis (IMF) in association with other fibro-inflammatory or autoimmune diseases. We report nine new IMF cases recently seen at our Fibro-Inflammatory Disease Clinic and reviewed the IMF cases reported in the English language literature throughout 2006-2016. The purposes of our literature search were to assess the frequency of the association between IMF and other immune-mediated disorders and to analyse which disorders most often coexist with IMF...
August 23, 2016: Clinical Reviews in Allergy & Immunology
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