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Pattern recognition

Lorena Pizarro, Meirav Leibman-Markus, Silvia Schuster, Maya Bar, Tal Meltz, Adi Avni
Plants recognize microbial/pathogen associated molecular patterns (MAMP/PAMP) through pattern recognition receptors (PRRs) triggering an immune response against pathogen progression. MAMP/PAMP triggered immune response requires PRR endocytosis and trafficking for proper deployment. LeEIX2 is a well-known Solanum lycopersicum RLP-PRR, able to recognize and respond to the fungal MAMP/PAMP ethylene-inducing xylanase (EIX), and its function is highly dependent on intracellular trafficking. Identifying protein machinery components regulating LeEIX2 intracellular trafficking is crucial to our understanding of LeEIX2 mediated immune responses...
2018: Frontiers in Plant Science
Seyran Yiğit, Neşe Ekinci, Leyla Hayrullah, İrfan Öcal, İncim Bezircioğlu
OBJECTIVE: Dedifferentiated endometrioid adenocarcinoma is a recently defined uterine tumor composed of low grade endometrioid adenocarcinoma and undifferentiated carcinoma. Herein we present clinicopathologic, morphologic and immunohistochemical features of 5 dedifferentiated endometrioid adenocarcinoma cases. MATERIAL AND METHODS: All cases diagnosed as mixed endometrial adenocarcinoma (endometrioid + undifferentiated carcinoma) or dedifferentiated endometrioid adenocarcinoma between January 2008 and December 2014 were retrieved from the archives of our institution's pathology department...
March 16, 2018: Journal of the Turkish German Gynecological Association
Yoonjin Nah, Na-Young Shin, Sehjung Yi, Seung-Koo Lee, Sanghoon Han
Numerous studies have suggested that postpartum women show a decline in cognitive abilities. However, to date, no study has investigated the presence of qualitative alterations in recognition memory processes in postpartum women that may lead to a decline in cognitive ability. To address this issue, we employed the Remember/Know procedure and functional magnetic resonance imaging (fMRI). Behavioral results demonstrated that compared with the matched control (CTRL) group, the postpartum (PP) group endorsed "Remember" less and "Know" more to old items...
March 12, 2018: Neurobiology of Learning and Memory
Linda Resnik, He Helen Huang, Anna Winslow, Dustin L Crouch, Fan Zhang, Nancy Wolk
BACKGROUND: Although electromyogram (EMG) pattern recognition (PR) for multifunctional upper limb prosthesis control has been reported for decades, the clinical benefits have rarely been examined. The study purposes were to: 1) compare self-report and performance outcomes of a transradial amputee immediately after training and one week after training of direct myoelectric control and EMG pattern recognition (PR) for a two-degree-of-freedom (DOF) prosthesis, and 2) examine the change in outcomes one week after pattern recognition training and the rate of skill acquisition in two subjects with transradial amputations...
March 15, 2018: Journal of Neuroengineering and Rehabilitation
Marian L Miller, Aleksey Porollo, Susan Wert
Alveolar type II cells from seven mammalian species were examined for a protein in the rough endoplasmic reticulum (RER), which showed a multi-layered, repeating motif. Each motif, 100nm in width, comprised two parallel outer dense layers, a less dense central layer, and often 1-3 faint layers on either side of the latter. Outer layers showed periodicities at 3-4 densities/100nm of width, while layers on either side of the central layer showed 5-7 densities/100nm of width. RER membranes were ribosome-free when parallel to these layers, but showed 4 ribosomes per motif at the growing ends: one ribosome at each outer dense layer, and one on either side of the less dense central layer...
March 15, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
Hironori Yoshino, Miyu Iwabuchi, Yuka Kazama, Maho Furukawa, Ikuo Kashiwakura
Retinoic acid-inducible gene-I (RIG-I)-like receptors (RLRs) are pattern-recognition receptors that recognize pathogen-associated molecular patterns and induce antiviral immune responses. Recent studies have demonstrated that RLR activation induces antitumor immunity and cytotoxicity against different types of cancer, including lung cancer. However a previous report has demonstrated that ionizing radiation exerts a limited effect on RLR in human monocytic cell-derived macrophages, suggesting that RLR agonists may be used as effective immunostimulants during radiation therapy...
April 2018: Oncology Letters
Ali Hafez Ali Mohammed El-Far, Seiichi Munesue, Ai Harashima, Akira Sato, Mika Shindo, Shingo Nakajima, Mana Inada, Mariko Tanaka, Akihiko Takeuchi, Hiroyuki Tsuchiya, Hiroshi Yamamoto, Hazem M E Shaheen, Yasser S El-Sayed, Shuhei Kawano, Sei-Ichi Tanuma, Yasuhiko Yamamoto
Receptor for advanced glycation end-products (RAGE) is a pattern recognition receptor implicated in the pathogenesis of certain types of cancer. In the present study, papaverine was identified as a RAGE inhibitor using the conversion to small molecules through optimized-peptide strategy drug design system. Papaverine significantly inhibited RAGE-dependent nuclear factor κ-B activation driven by high mobility group box-1, a RAGE ligand. Using RAGE- or dominant-negative RAGE-expressing HT1080 human fibrosarcoma cells, the present study revealed that papaverine suppressed RAGE-dependent cell proliferation and migration dose-dependently...
April 2018: Oncology Letters
Emilia Vendelova, Diyaaeldin Ashour, Patrick Blank, Florian Erhard, Antoine-Emmanuel Saliba, Ulrich Kalinke, Manfred B Lutz
Dendritic cells (DCs) are key directors of tolerogenic and immunogenic immune responses. During the steady state, DCs maintain T cell tolerance to self-antigens by multiple mechanisms including inducing anergy, deletion, and Treg activity. All of these mechanisms help to prevent autoimmune diseases or other hyperreactivities. Different DC subsets contribute to pathogen recognition by expression of different subsets of pattern recognition receptors, including Toll-like receptors or C-type lectins. In addition to the triggering of immune responses in infected hosts, most pathogens have evolved mechanisms for evasion of targeted responses...
2018: Frontiers in Immunology
Mariusz Z Ratajczak, Daniel Pedziwiatr, Monika Cymer, Magda Kucia, Jolanta Kucharska-Mazur, Jerzy Samochowiec
Evidence has accumulated that the occurrence of psychiatric disorders is related to chronic inflammation. In support of this linkage, changes in the levels of circulating pro-inflammatory cytokines and chemokines in the peripheral blood (PB) of psychiatric patients as well as correlations between chronic inflammatory processes and psychiatric disorders have been described. Furthermore, an inflammatory process known as "sterile inflammation" when initiated directly in brain tissue may trigger the onset of psychoses...
2018: Frontiers in Psychiatry
Ivelise Regina Canito Brasil, Igor Farias de Araujo, Adriana Augusta Lopes de Araujo Lima, Ernesto Lima Araujo Melo, Ronaldo de Matos Esmeraldo
Objective: To describe the main anatomical variations of the celiac trunk and the hepatic artery at their origins. Materials and Methods: This was a prospective analysis of 100 consecutive computed tomography angiography studies of the abdomen performed during a one-year period. The findings were stratified according to classification systems devised by Sureka et al. and Michels. Results: The celiac trunk was "normal" (i.e., the hepatogastrosplenic trunk and superior mesenteric artery originating separately from the abdominal aorta) in 43 patients...
January 2018: Radiologia Brasileira
Leila M Lopes-Bezerra, Hector M Mora-Montes, Yu Zhang, Gustavo Nino-Vega, Anderson Messias Rodrigues, Zoilo Pires de Camargo, Sybren de Hoog
The description of cryptic species with different pathogenic potentials has changed the perspectives on sporotrichosis. Sporothrix schenckii causes a benign chronic subcutaneous mycosis, Sporothrix brasiliensis is highly virulent, and Sporothrix globosa mainly causes fixed cutaneous lesions. Furthermore, S. brasiliensis is the prevalent species related to cat-transmitted sporotrichosis. Sources of infection, transmission, and distribution patterns also differ between species, and variability differs between species because of different degrees of clonality...
April 1, 2018: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
Nicole Montero Lopez, Nader Paksima
Perilunate injuries most commonly occur in high energy trauma situations; however, they are rare and frequently missed. Familiarity with the complex bony and ligamentous anatomy is required to fully understand these complex injury patterns. Careful orthogonal imaging and evaluation is required to ensure timely diagnosis of a perilunate injury. Early recognition and management of acute perilunate injuries has been demonstrated to correlate with better patient outcomes. Delayed treatment of chronic injuries can result in post-traumatic osteoarthritis and carpal collapse requiring salvage interventions...
March 2018: Bulletin of the Hospital for Joint Diseases
Andrés Pomi
BACKGROUND: One of the central challenges of third millennium medicine is the abatement of medical errors. Among the most frequent and hardiest causes of misdiagnosis are cognitive errors produced by faulty medical reasoning. These errors have been analyzed from the perspectives of cognitive psychology and empirical medical studies. We introduce a neurocognitive model of medical diagnosis to address this issue. METHODS: We construct a connectionist model based on the associative nature of human memory to explore the non-analytical, pattern-recognition mode of diagnosis...
November 27, 2017: Diagnosis
Maopeng Tian, Zijie Zhou, Songwei Tan, Xionglin Fan, Longmeng Li, Nadeem Ullah
Despite the vaccine Mycobacterium bovis Bacillus Calmette-Guérin is used worldwide, tuberculosis (TB) remains the first killer among infectious diseases. An effective vaccine is urgently required. DNA vaccine has shown prophylactic as well as therapeutic effects against TB, while its weak immunogenicity hinders the application. As a strong inducer of Th1-biased immune response, DMT, consisting of dimethyldioctadecylammonium (DDA) and two pattern recognition receptor agonists monophosphoryl lipid A and trehalose 6,6'-dibehenate (TDB), was a newly developed liposomal adjuvant...
2018: Frontiers in Immunology
Marlysa B Sullivan, Matt Erb, Laura Schmalzl, Steffany Moonaz, Jessica Noggle Taylor, Stephen W Porges
Yoga therapy is a newly emerging, self-regulating complementary and integrative healthcare (CIH) practice. It is growing in its professionalization, recognition and utilization with a demonstrated commitment to setting practice standards, educational and accreditation standards, and promoting research to support its efficacy for various populations and conditions. However, heterogeneity of practice, poor reporting standards, and lack of a broadly accepted understanding of the neurophysiological mechanisms involved in yoga therapy limits the structuring of testable hypotheses and clinical applications...
2018: Frontiers in Human Neuroscience
Oliver Grünvogel, Ombretta Colasanti, Ji-Young Lee, Volker Klöss, Sandrine Belouzard, Anna Reustle, Katharina Esser-Nobis, Jasper Hesebeck-Brinckmann, Pascal Mutz, Katrin Hoffmann, Arianeb Mehrabi, Ronald Koschny, Florian W R Vondran, Daniel Gotthardt, Paul Schnitzler, Christoph Neumann-Haefelin, Robert Thimme, Marco Binder, Ralf Bartenschlager, Jean Dubuisson, Alexander H Dalpke, Volker Lohmann
BACKGROUND & AIMS: Hepatitis C virus (HCV) infections most often result in chronic outcomes, although the virus constantly produces replication intermediates, in particular double-stranded RNA (dsRNA), representing potent inducers of innate immunity. We aimed to characterize the fate of HCV dsRNA in hepatocyte cultures to identify mechanisms contributing to viral persistence in presence of an active innate immune response. METHODS: We analyzed hepatocyte-based culture models for HCV for induction of innate immunity, secretion of virus positive- or negative-strand RNA, and viral replication using different quantification methods and microscopy techniques...
March 10, 2018: Gastroenterology
Ning Zhuang, Ying Zeng, Kai Yang, Chi Zhang, Li Tong, Bin Yan
Most current approaches to emotion recognition are based on neural signals elicited by affective materials such as images, sounds and videos. However, the application of neural patterns in the recognition of self-induced emotions remains uninvestigated. In this study we inferred the patterns and neural signatures of self-induced emotions from electroencephalogram (EEG) signals. The EEG signals of 30 participants were recorded while they watched 18 Chinese movie clips which were intended to elicit six discrete emotions, including joy, neutrality, sadness, disgust, anger and fear...
March 12, 2018: Sensors
Xin Mu, Emily Greenwald, Sadeem Ahmad, Sun Hur
The emergence of RNA-based therapeutics demands robust and economical methods to produce RNA with few byproducts from aberrant activity. While in vitro transcription using the bacteriophage T7 RNA polymerase is one such popular method, its transcripts are known to display an immune-stimulatory activity that is often undesirable and uncontrollable. We here showed that the immune-stimulatory activity of T7 transcript is contributed by its aberrant activity to initiate transcription from a promoter-less DNA end...
March 9, 2018: Nucleic Acids Research
Rachael D Reavis, Stephanie E Miller, Jordyn A Grimes, Abou-Nica N M Fomukong
Although work with children demonstrates a benefit of process-focused praise relative to person-focused praise on post-failure motivation, few studies have examined this result in adults. We tested the effect of three types of praise on adults' post-failure outcomes: person-focused intelligence ("high intelligence"), person-focused effort ("hard worker"), and process-focused effort ("worked hard") in a sample of 156 adults recruited from Amazon's MTurk. Participants completed a set of easy visual pattern recognition problems and were told that they performed better than most adults and were given one of the three types of feedback...
March 13, 2018: Journal of Genetic Psychology
Sunil H Adwani, Cai Yuan, Leen Alsaleh, Julie Pepe, Khalid Abusaada
RATIONALE, AIMS, AND OBJECTIVES: Several studies have looked at patient-related variables influencing hospital length of stay (LOS) in patients with acute exacerbations of chronic obstructive pulmonary disease (AECOPD). However, there has been increasing recognition that physician-related factors also play a significant role. This study aims to evaluate differences in practice patterns between teaching and nonteaching services and their effect on LOS in a large community hospital. METHODS: A retrospective study of 354 patients admitted to Florida Hospital, Orlando, with AECOPD between January 2009 and December 2011...
March 13, 2018: Journal of Evaluation in Clinical Practice
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