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https://www.readbyqxmd.com/read/29118569/embolia-cutis-medicamentosa-an-unusual-adverse-reaction-to-terlipressin
#1
Polychronis Gatos-Gatopoulos, Stephanos Kostantoudakis, Ioannis G Panayiotides, George D Dimitriadis, Konstantinos Triantafyllou
Terlipressin is a synthetic long-acting analog of vasopressin widely used to control variceal bleeding by lowering portal venous pressure. We report an unusual adverse reaction to terlipressin in a 78-year-old patient with esophageal variceal bleeding who developed skin necrosis soon after treatment initiation. Skin biopsy revealed embolia cutis medicamentosa.
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29114543/molecular-mechanisms-of-programmed-cell-death-1-dependent-t-cell-suppression-relevance-for-immunotherapy
#2
REVIEW
Miren Zuazo, Maria Gato-Cañas, Noelia Llorente, María Ibañez-Vea, Hugo Arasanz, Grazyna Kochan, David Escors
Programmed cell death-1 (PD1) has become a significant target for cancer immunotherapy. PD1 and its receptor programmed cell death 1 ligand 1 (PDL1) are key regulatory physiological immune checkpoints that maintain self-tolerance in the organism by regulating the degree of activation of T and B cells amongst other immune cell types. However, cancer cells take advantage of these immunosuppressive regulatory mechanisms to escape T and B cell-mediated immunity. PD1 engagement on T cells by PDL1 on the surface of cancer cells dramatically interferes with T cell activation and the acquisition of effector capacities...
October 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29063203/cortical-dysplasia-and-autistic-trait-severity-in-children-with-tuberous-sclerosis-complex-a-clinical-epidemiological-study
#3
Sabine E Mous, Iris E Overwater, Rita Vidal Gato, Jorieke Duvekot, Leontine W Ten Hoopen, Maarten H Lequin, Marie-Claire Y de Wit, Gwendolyn C Dieleman
Tuberous Sclerosis Complex (TSC) is characterized by a high prevalence of autism spectrum disorders (ASD). Little is known about the relation between cortical dysplasia and ASD severity in TSC. We assessed ASD severity (using the Autism Diagnostic Observation Scale), tuber and radial migration line (RML) count and location, and cognitive functioning in 52 children with TSC and performed regression and mediation analyses. Tuber and RML count were strongly positively related to ASD severity. However, when correcting for cognitive functioning, the majority of associations became insignificant and only total tuber count remained associated to the severity of restricted/repetitive behaviors...
October 23, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/29057356/anterior-cervical-spine-surgery-associated-complications-in-a-retrospective-case-control-study
#4
REVIEW
Anastasia Tasiou, Theofanis Giannis, Alexandros G Brotis, Ioannis Siasios, Iordanis Georgiadis, Haralampos Gatos, Eleni Tsianaka, Konstantinos Vagkopoulos, Konstantinos Paterakis, Kostas N Fountas
Anterior cervical spine procedures have been associated with satisfactory outcomes. However, the occurrence of troublesome complications, although uncommon, needs to be taken into consideration. The purpose of our study was to assess the actual incidence of anterior cervical spine procedure-associated complications and identify any predisposing factors. A total of 114 patients undergoing anterior cervical procedures over a 6-year period were included in our retrospective, case-control study. The diagnosis was cervical radiculopathy, and/or myelopathy due to degenerative disc disease, cervical spondylosis, or traumatic cervical spine injury...
September 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29050447/uncaria-tomentosa
#5
Valentina Della Valle
Uncaria tomentosa (U. tomentosa) or uña de gato, a species of vine of Rubiaceae family, was used from centuries in various medical conditions. Although there are no randomized controlled trials or published human outcome studies, some conditions reportedly improved by U. tomentosa include osteoarthritis, rheumatoid arthritis, prostatitis, viral illnesses and cancer (acting as a non-specific immunomodulantign agent) and it may also have potential as an immunomodulating adaptogen in cellular aging. The understanding of some specific mechanisms of molecular action leads to the demonstration of various anti-inflammatory, immunostimulating and protective effects...
December 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29032490/myeloid-derived-suppressor-cells-in-the%C3%A2-tumor-microenvironment-current-knowledge-and-future-perspectives
#6
REVIEW
Maria Ibáñez-Vea, Miren Zuazo, Maria Gato, Hugo Arasanz, Gonzalo Fernández-Hinojal, David Escors, Grazyna Kochan
The current knowledge on tumor-infiltrating myeloid-derived suppressor cells (MDSCs) is based mainly on the extensive work performed in murine models. Data obtained for human counterparts are generated on the basis of tumor analysis from patient samples. Both sources of information led to determination of the main suppressive mechanisms used by these cell subsets in tumor-bearing hosts. As a result of the identification of protein targets responsible for MDSCs suppressive activity, different therapeutics agents have been used to eliminate/reduce their adverse effect...
October 14, 2017: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/28964869/anti-proliferative-and-pro-apoptotic-effects-of-uncaria-tomentosa-aqueous-extract-in-squamous-carcinoma-cells
#7
Francesca Ciani, Simona Tafuri, Annaelena Troiano, Alessio Cimmino, Bianca Saveria Fioretto, Andrea Maria Guarino, Alessandra Pollice, Maria Vivo, Antonio Evidente, Domenico Carotenuto, Viola Calabrò
Uncaria tomentosa (Willd.) DC. (Rubiacee), also known as uña de gato, is a plant that grows wild in the upper Amazon region of Peru and has been widely used in folk medicine to treat several health conditions including cancer. We have produced an aqueous extract from Uncaria tomentosa (UT-ex) and analyzed its effects on squamous carcinoma cells and immortalized HaCaT keratinocytes. Squamous cell carcinoma (SCC) is an uncontrolled growth of abnormal cells arising in the skin's squamous layer of epidermis. When detected at an early stage, SCCs are almost curable, however, if left untreated, they can penetrate the underlying tissue and become disfiguring...
September 28, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28911126/diabetes-in-the-cape-coast-metropolis-of-ghana-an-assessment-of-risk-factors-nutritional-practices-and-lifestyle-changes
#8
Worlanyo E Gato, Samuel Acquah, Bettye A Apenteng, Samuel T Opoku, Blessed K Boakye
Background: Despite the significant increase in the incidence of diabetes in Ghana, research in this area has been lagging. The purpose of the study was to assess the risk factors associated with diabetes in the Cape Coast metropolis of Ghana, and to describe nutritional practices and efforts toward lifestyle change. Methods: A convenient sample of 482 adults from the Cape Coast metropolis was surveyed using a self-reported questionnaire. The survey collected information on the demographic, socioeconomic characteristics, health status and routine nutritional practices of respondents...
September 1, 2017: International Health
https://www.readbyqxmd.com/read/28881701/pd1-signal-transduction-pathways-in-t-cells
#9
REVIEW
Hugo Arasanz, Maria Gato-Cañas, Miren Zuazo, Maria Ibañez-Vea, Karine Breckpot, Grazyna Kochan, David Escors
The use of immune checkpoint inhibitors for the treatment of cancer is revolutionizing oncology. Amongst these therapeutic agents, antibodies that block PD-L1/PD1 interactions between cancer cells and T cells are demonstrating high efficacies and low toxicities. Despite all the recent advances, very little is yet known on the molecular intracellular signaling pathways regulated by either PD-L1 or PD1. Here we review the current knowledge on PD1-dependent intracellular signaling pathways, and the consequences of disrupting PD1 signal transduction...
August 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28834746/pdl1-signals-through-conserved-sequence-motifs-to-overcome-interferon-mediated-cytotoxicity
#10
Maria Gato-Cañas, Miren Zuazo, Hugo Arasanz, Maria Ibañez-Vea, Laura Lorenzo, Gonzalo Fernandez-Hinojal, Ruth Vera, Cristian Smerdou, Eva Martisova, Imanol Arozarena, Claudia Wellbrock, Diana Llopiz, Marta Ruiz, Pablo Sarobe, Karine Breckpot, Grazyna Kochan, David Escors
PDL1 blockade produces remarkable clinical responses, thought to occur by T cell reactivation through prevention of PDL1-PD1 T cell inhibitory interactions. Here, we find that PDL1 cell-intrinsic signaling protects cancer cells from interferon (IFN) cytotoxicity and accelerates tumor progression. PDL1 inhibited IFN signal transduction through a conserved class of sequence motifs that mediate crosstalk with IFN signaling. Abrogation of PDL1 expression or antibody-mediated PDL1 blockade strongly sensitized cancer cells to IFN cytotoxicity through a STAT3/caspase-7-dependent pathway...
August 22, 2017: Cell Reports
https://www.readbyqxmd.com/read/28827961/uncaria-tomentosa-willd-ex-schult-dc-rubiaceae-sensitizes-thp-1-cells-to-radiation-induced-cell-death
#11
Lisa Allen, Alison Buckner, Carly A Buckner, Pablo Cano, Robert M Lafrenie
BACKGROUND: Uncaria tomentosa (Willd. ex Schult.) DC (Rubiaceae), known as Cat's Claw or Uña de gato, is a traditionally used medicinal plant native to Peru. Some studies have shown that U. tomentosa can act as an antiapoptotic agent and enhance DNA repair in chemotherapy-treated cells although others have shown that U. tomentosa enhanced apoptosis. OBJECTIVE: To determine if treatment with U. tomentosa can significantly enhance cell death in THP-1 cells exposed to ionizing radiation...
July 2017: Pharmacognosy Research
https://www.readbyqxmd.com/read/28821460/long-term-effects-of-hydrogen-sulfide-on-the-anabolic-catabolic-balance-of-articular-cartilage-in%C3%A2-vitro
#12
Á Vela-Anero, T Hermida-Gómez, L Gato-Calvo, C Vaamonde-García, S Díaz-Prado, R Meijide-Faílde, F J Blanco, E F Burguera
Healthy cartilage maintenance relies on an equilibrium among the anabolic and catabolic processes in chondrocytes. With the onset of osteoarthritis (OA), increased interleukin (IL)-1β levels induce an inhibition of the synthesis of extracellular matrix (ECM) proteins, as well as an increase in proteases. This eventually leads to a predominance of the catabolic phenotype and the progressive loss of articular cartilage. Hydrogen sulfide (H2S) is a small gaseous molecule recognized as the third endogenous gasotransmitter...
August 15, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28724450/variation-in-species-composition-and-infection-rates-of-anopheles-mosquitoes-at-different-altitudinal-transects-and-the-risk-of-malaria-in-the-highland-of-dirashe-woreda-south-ethiopia
#13
Taye Yohannes Daygena, Fekadu Massebo, Bernt Lindtjørn
BACKGROUND: The transmission of malaria is heterogeneous, and varies due to altitude. The information on whether the transmission of malaria is indigenous or imported to highland areas is scarce. Therefore, this study aimed to assess the species composition and infection rates of Anopheles at different altitudinal transects, and the risk of malaria if any in the highland of Dirashe Woreda, South Ethiopia. METHODS: This study was conducted in Gato (low altitude; average elevation of 1273 m), Onota (mid-altitude; average elevation of 1707 m) and Layignaw-Arguba (high altitude; average elevation of 2337 m) from August 2015 to April 2016...
July 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28687116/is-it-useful-to-calculate-minimal-erythema-dose-before-narrowband-uv-b-phototherapy
#14
M T Rodríguez-Granados, A Estany-Gestal, M Pousa-Martínez, J Labandeira, R Gato Otero, V Fernández-Redondo
INTRODUCTION AND OBJECTIVES: The starting dose for narrowband UV-B phototherapy is determined by a patient's skin phototype or minimal erythema dose (MED). Calculation of MED identifies patients with unsuspected photosensitivity. The aim of this study was to investigate the influence of factors such as concomitant use of photosensitizing agents, diagnosis, and combination with acitretin in patients with psoriasis on the frequency and severity of adverse effects in patients with a low MED to narrowband UV-B phototherapy...
November 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28634041/a-machine-learning-algorithm-toward-color-analysis-for-chronic-liver-disease-classification-employing-ultrasound-shear-wave-elastography
#15
Ilias Gatos, Stavros Tsantis, Stavros Spiliopoulos, Dimitris Karnabatidis, Ioannis Theotokas, Pavlos Zoumpoulis, Thanasis Loupas, John D Hazle, George C Kagadis
The purpose of the present study was to employ a computer-aided diagnosis system that classifies chronic liver disease (CLD) using ultrasound shear wave elastography (SWE) imaging, with a stiffness value-clustering and machine-learning algorithm. A clinical data set of 126 patients (56 healthy controls, 70 with CLD) was analyzed. First, an RGB-to-stiffness inverse mapping technique was employed. A five-cluster segmentation was then performed associating corresponding different-color regions with certain stiffness value ranges acquired from the SWE manufacturer-provided color bar...
June 17, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28555507/performance-measurement-and-target-setting-in-california-s-safety-net-health-systems
#16
Shirin Hemmat, Dean Schillinger, Courtney Lyles, Sara Ackerman, Gato Gourley, Eric Vittinghoff, Margaret Handley, Urmimala Sarkar
Health policies encourage implementing quality measurement with performance targets. The 2010-2015 California Medicaid waiver mandated quality measurement and reporting. In 2013, California safety net hospitals participating in the waiver set a voluntary performance target (the 90th percentile for Medicare preferred provider organization plans) for mammography screening and cholesterol control in diabetes. They did not reach the target, and the difference-in-differences analysis suggested that there was no difference for mammography ( P = ...
May 1, 2017: American Journal of Medical Quality: the Official Journal of the American College of Medical Quality
https://www.readbyqxmd.com/read/28536672/response-to-bile-salts-in-clinical-strains-of-acinetobacter-baumannii-lacking-the-adeabc-efflux-pump-virulence-associated-with-quorum-sensing
#17
Maria López, Lucia Blasco, Eva Gato, Astrid Perez, Laura Fernández-Garcia, Luis Martínez-Martinez, Felipe Fernández-Cuenca, Jesús Rodríguez-Baño, Alvaro Pascual, German Bou, Maria Tomás
Introduction:Acinetobacter baumannii is an opportunistic nosocomial pathogen associated with multiple infections. This pathogen usually colonizes (first stage of microbial infection) host tissues that are in contact with the external environment. As one of the sites of entry in human hosts is the gastrointestinal tract, the pathogen must be capable of tolerating bile salts. However, studies analyzing the molecular characteristics involved in the response to bile salts in clinical strains of A. baumannii are scarce...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28522261/-pulmonary-hamartoma-as-an-example-of-solitary-pulmonary-nodule
#18
M Tejero-Mas, C Gato-Núñez, N Rivera-Jiménez, F Buitrago-Ramírez, A Palmerín-Donoso
No abstract text is available yet for this article.
May 15, 2017: Semergen
https://www.readbyqxmd.com/read/28475054/unsupervised-word-spotting-in-historical-handwritten-document-images-using-document-oriented-local-features
#19
Konstantinos Zagoris, Ioannis Pratikakis, Basilis Gatos
Word spotting strategies employed in historical handwritten documents face many challenges due to variation in the writing style and intense degradation. In this paper, a new method that permits effective word spotting in handwritten documents is presented that it relies upon document-oriented local features which take into account information around representative keypoints as well a matching process that incorporates spatial context in a local proximity search without using any training data. Experimental results on four historical handwritten datasets for two different scenarios (segmentation-based and segmentation-free) using standard evaluation measures show the improved performance achieved by the proposed methodology...
May 3, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28472772/pd1-signal-transduction-pathways-in-t-cells
#20
REVIEW
Hugo Arasanz, Maria Gato-Cañas, Miren Zuazo, Maria Ibañez-Vea, Karine Breckpot, Grazyna Kochan, David Escors
The use of immune checkpoint inhibitors for the treatment of cancer is revolutionizing oncology. Amongst these therapeutic agents, antibodies that block PD-L1/PD1 interactions between cancer cells and T cells are demonstrating high efficacies and low toxicities. Despite all the recent advances, very little is yet known on the molecular intracellular signaling pathways regulated by either PD-L1 or PD1. Here we review the current knowledge on PD1-dependent intracellular signaling pathways, and the consequences of disrupting PD1 signal transduction...
April 19, 2017: Oncotarget
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