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https://www.readbyqxmd.com/read/28100630/a-multivariable-prediction-model-for-pegvisomant-dosing-monotherapy-and-in-combination-with-long-acting-somatostatin-analogues
#1
Sanne Elisabeth Franck, Tim Korevaar, Patrick Petrossians, Adrian F Daly, Philippe Chanson, Marielise Jaffrian-Rea, Thierry Brue, Günter K Stalla, Davide Carvalho, Annamaria Anita Livia Colao, Vasik Hana, Brigitte Delemer, Carmen Fajardo Montañana, A J Van der Lely, Albert Beckers, Sebastian J C M M Neggers
BACKGROUND: Effective treatment of acromegaly with pegvisomant (PEGV), a growth hormone receptor antagonist, requires an appropriate dose titration. PEGV doses vary widely among individual patients, and various covariates may affect its dosing and pharmacokinetics. OBJECTIVE: To identify predictors of the PEGV dose required to normalize insulin-like growth factor I (IGF-I) levels during PEGV monotherapy and in combination with long-acting somatostatin analogues (LA-SSAs)...
January 18, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28099431/exacerbated-leishmaniasis-caused-by-a-viral-endosymbiont-can-be-prevented-by-immunization-with-its-viral-capsid
#2
Patrik Castiglioni, Mary-Anne Hartley, Matteo Rossi, Florence Prevel, Chantal Desponds, Daniel T Utzschneider, Remzi-Onur Eren, Haroun Zangger, Livia Brunner, Nicolas Collin, Dietmar Zehn, F Matthew Kuhlmann, Stephen M Beverley, Nicolas Fasel, Catherine Ronet
Recent studies have shown that a cytoplasmic virus called Leishmaniavirus (LRV) is present in some Leishmania species and acts as a potent innate immunogen, aggravating lesional inflammation and development in mice. In humans, the presence of LRV in Leishmania guyanensis and in L. braziliensis was significantly correlated with poor treatment response and symptomatic relapse. So far, no clinical effort has used LRV for prophylactic purposes. In this context, we designed an original vaccine strategy that targeted LRV nested in Leishmania parasites to prevent virus-related complications...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28097911/design-synthesis-and-docking-study-of-novel-coumarin-ligands-as-potential-selective-acetylcholinesterase-inhibitors
#3
Fatih Sonmez, Belma Zengin Kurt, Isil Gazioglu, Livia Basile, Aydan Dag, Valentina Cappello, Tiziana Ginex, Mustafa Kucukislamoglu, Salvatore Guccione
New coumaryl-thiazole derivatives with the acetamide moiety as a linker between the alkyl chains and/or the heterocycle nucleus were synthesized and in vitro tested as acetylcholinesterase (AChE) inhibitors. 2-(diethylamino)-N-(4-(2-oxo-2H-chromen-3-yl)thiazol-2-yl)acetamide (6c, IC50 value of 43 nM) was the best AChE inhibitor with a selectivity index of 4151.16 over BuChE. Kinetic study of AChE inhibition revealed that 6c was a mixed-type inhibitor. Moreover, the result of H4IIE hepatoma cell toxicity assay for 6c showed negligible cell death...
December 2017: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/28096458/more-severe-disease-and-slower-recovery-in-younger-patients-with-anti-3-hydroxy-3-methylglutaryl-coenzyme-a-reductase-associated-autoimmune-myopathy
#4
Eleni Tiniakou, Iago Pinal-Fernandez, Thomas E Lloyd, Jemima Albayda, Julie Paik, Jessie L Werner, Cassie A Parks, Livia Casciola-Rosen, Lisa Christopher-Stine, Andrew L Mammen
OBJECTIVE: To study disease severity and response to therapy in a large cohort of patients with anti-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR)-associated myositis. METHODS: Muscle strength, creatine kinase levels and treatments were assessed in anti-HMGCR-positive patients at each clinical visit. Univariate and multivariate analyses were used to analyse the influence of clinical characteristics on strength and the change in strength over time. Whole exome sequencing was performed in a subset of patients...
January 17, 2017: Rheumatology
https://www.readbyqxmd.com/read/28096060/nutritional-status-and-bioelectrical-phase-angle-assessment-in-adult-crohn-disease-patients-receiving-anti-tnf%C3%AE-therapy
#5
Sara Emerenziani, Livia Biancone, Michele Pier Luca Guarino, Paola Balestrieri, Elisa Stasi, Mentore Ribolsi, Maria Paola Rescio, Annamaria Altomare, Silvia Cocca, Francesco Pallone, Michele Cicala
BACKGROUND: Altered body composition is frequently observed in Crohn's disease (CD) patients. AIMS: To investigate the nutritional status, and the effect of different therapeutic regimes in adult CD patients. METHODS: Fat free mass (FFM) and BIA-derived phase angle (PhA) were assessed in 45 CD patients, 22 on conventional therapy (CT) and 23 on maintenance therapy with infliximab (MT). Nutritional status was also assessed in 12 CD patients before and following the induction protocol with infliximab...
December 30, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28095964/f-wave-duration-parameters-as-a-specific-and-sensitive-tool-for-diagnosis-of-restless-legs-syndrome
#6
Patrizia Congiu, Maria Livia Fantini, Giulia Milioli, Paolo Tacconi, Michela Figorilli, Gioia Gioi, Bruno Pereira, Francesco Marrosu, Liborio Parrino, Monica Puligheddu
STUDY OBJECTIVES: Restless legs syndrome, also known as Willis-Ekbom disease (RLS/WED), is a frequent condition, though its pathophysiology is not completely understood. The diagnosis of RLS/WED relies on clinical criteria, and the only instrumental tool, the suggested immobilization test, may lead to equivocal results. Recently, neurophysiological parameters related to F-wave duration have been proposed as a diagnostic aid. The aim of this study is to assess and compare the diagnostic values of these parameters in diagnosis of RLS/WED...
January 11, 2017: Journal of Clinical Sleep Medicine: JCSM: Official Publication of the American Academy of Sleep Medicine
https://www.readbyqxmd.com/read/28095501/birth-weight-and-its-relationship-with-the-cardiac-autonomic-balance-in-healthy-children
#7
Livia Victorino Souza, Vanessa Oliveira, Franciele De Meneck, Ana Paula Grotti Clemente, Maria Wany Louzada Strufaldi, Maria do Carmo Franco
Several studies indicate that the fetal environment plays a significant role in the development of cardiometabolic disease later in life. However, a few studies present conflicting data about the correlation between birth weight and the impairment of cardiac autonomic modulation. The purpose of the present study was to provide further knowledge to elucidate this contradictory relationship. One hundred children aged 5 and 14 years had anthropometric parameters, body composition and blood pressure levels determined...
2017: PloS One
https://www.readbyqxmd.com/read/28093116/captive-and-free-living-urban-pigeons-columba-livia-from-brazil-as-carriers-of-multidrug-resistant-pathogenic-escherichia-coli
#8
Clarissa A Borges, Renato P Maluta, Lívia G Beraldo, Marita V Cardozo, Elisabete A L Guastalli, Subhashinie Kariyawasam, Chitrita DebRoy, Fernando A Ávila
Thirty Escherichia coli isolates from captive and free-living pigeons in Brazil were characterised. Virulence-associated genes identified in pigeons included those which occur relatively frequently in avian pathogenic E. coli (APEC) from commercial poultry worldwide. Eleven of 30 E. coli isolates from pigeons, belonging mainly to B1 and B2 phylogenetic groups, had high or intermediate pathogenicity for 1-day-old chicks. The frequency of multi-drug resistant (MDR) E. coli in captive pigeons was relatively high and included one isolate positive for the extended-spectrum β-lactamase (ESBL) gene blaCTX-M-8...
January 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28092307/the-prosit-bio-cohort-a-prospective-observational-study-of-patients-with-inflammatory-bowel-disease-treated-with-infliximab-biosimilar
#9
Gionata Fiorino, Natalia Manetti, Alessandro Armuzzi, Ambrogio Orlando, Angela Variola, Stefanos Bonovas, Fabrizio Bossa, Giovanni Maconi, Renata DʼIncà, Paolo Lionetti, Laura Cantoro, Walter Fries, Maria L Annunziata, Francesco Costa, Maria M Terpin, Livia Biancone, Claudio C Cortelezzi, Arnaldo Amato, Sandro Ardizzone, Silvio Danese, Luisa Guidi, Giulia Rizzuto, Arianna Massella, Angelo Andriulli, Alessandro Massari, Greta Lorenzon, Silvia Ghione, Anna Kohn, Agostino Ventra, Vito Annese
BACKGROUND: Few data are available on the safety and efficacy of infliximab biosimilar CT-P13 in patients with ulcerative colitis and Crohn's disease. METHODS: A prospective, multicenter, cohort study using a structured database. RESULTS: Consecutive patients (313 Crohn's disease and 234 ulcerative colitis) were enrolled from 31 referral centers; 311 patients were naive to anti-tumor necrosis factor alpha, 139 had a previous exposure to biologics, and the remaining 97 were switched to CT-P13 after a mean of 18 ± 14 infusions of infliximab...
January 12, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28089214/prevalence-of-chronic-pancreatitis-results-of-a-primary-care-physician-based-population-study
#10
Gabriele Capurso, Livia Archibugi, Piera Pasquali, Alessandro Aceti, Paolo Balducci, Patrizia Bianchi, Francesco Buono, Stefano Camerucci, Rosanna Cantarini, Sergio Centofanti, Patrizia Colantonio, Riccarda Cremaschi, Sergio Crescenzi, Caterina Di Mauro, Davide Di Renzi, Andrea Filabozzi, Alfonso Fiorillo, Giuseppe Giancaspro, Paola Giovannetti, Giuseppe Lanna, Claudio Medori, Emilio Merletti, Enzo Nunnari, Francesca Paris, Marco Pavone, Angela Piacenti, Almerindo Rossi, Maria Cristina Scamuffa, Giovanni Spinelli, Marco Taborchi, Biagio Valente, Antonella Villanova, Alberto Chiriatti, Gianfranco Delle Fave
BACKGROUND: Data on chronic pancreatitis prevalence are scanty and usually limited to hospital-based studies. AIM: Investigating chronic pancreatitis prevalence in primary care. METHODS: Participating primary care physicians reported the prevalence of chronic pancreatitis among their registered patients, environmental factors and disease characteristics. The data were centrally reviewed and chronic pancreatitis cases defined according to M-ANNHEIM criteria for diagnosis and severity and TIGAR-O classification for etiology...
December 27, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28088901/advanced-structure-activity-relationships-applied-to-mentha-spicata-l-subsp-spicata-essential-oil-compounds-as-ache-and-nmda-ligands-in-comparison-with-donepezil-galantamine-and-memantine-new-approach-in-brain-disorders-pharmacology
#11
Speranta Avram, Mernea Maria, Eyup Bagci, Lucian Hritcu, Livia-Cristina Borcan, Dan Mihailescu
BACKGROUND: Alzheimer's disease (AD) therapy is based on several natural and synthetic compounds that act as acetylcholinesterase (AChE) and N-methyl-D-aspartate receptor (NMDA) ligands that have limited efficiency in relieving AD symptoms. Recent studies show that inhibitors isolated from Mentha spicata L. subsp. spicata are promising for AD therapy. OBJECTIVE: We aimed to identify novel and more potent phytopharmaceutical compounds for AD treatment by taking into account the compounds from Mentha spicata L...
January 13, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28087351/central-nervous-system-vasculitis-in-adults-an-update
#12
REVIEW
Lívia Almeida Dutra, Alexandre Wagner Silva de Souza, Gabriela Grinberg-Dias, Orlando Graziani Povoas Barsottini, Simone Appenzeller
Primary central nervous system vasculitis (PCNSV) is a challenging diagnosis due to broad clinical manifestations and variable specificity and sensitivity of laboratory and imaging diagnostic tools. Differential diagnosis include reversible cerebral vasoconstriction syndrome (RCVS), secondary vasculitis of the CNS and other noninflammatory vasculopathies. Brain biopsy is essential for definitive diagnosis and to exclude mimickers. Recent data show data large-vessel PCNSV present worse prognosis when compared to small-vessel PCNSV...
January 10, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28086928/resolvin-rvd2-reduces-hypothalamic-inflammation-and-rescues-mice-from-diet-induced-obesity
#13
Livia B Pascoal, Bruna Bombassaro, Albina F Ramalho, Andressa Coope, Rodrigo F Moura, Felipe Correa-da-Silva, Leticia Ignacio-Souza, Daniela Razolli, Diogo de Oliveira, Rodrigo Catharino, Licio A Velloso
BACKGROUND: Diet-induced hypothalamic inflammation is an important mechanism leading to dysfunction of neurons involved in controlling body mass. Studies have shown that polyunsaturated fats can reduce hypothalamic inflammation. Here, we evaluated the presence and function of RvD2, a resolvin produced from docosahexaenoic acid, in the hypothalamus of mice. METHODS: Male Swiss mice were fed either chow or a high-fat diet. RvD2 receptor and synthetic enzymes were evaluated by real-time PCR and immunofluorescence...
January 5, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28079396/does-brain-creatine-content-rely-on-exogenous-creatine-in-healthy-youth-a-proof-of-principle-study
#14
Carlos Alberto Abujabra Merege-Filho, Maria Concepción Garcia Otaduy, Ana Lúcia de Sá-Pinto, Maira Okada de Oliveira, Lívia de Souza Gonçalves, Ana Paula Tanaka Hayashi, Hamilton Roschel, Rosa Maria Rodrigues Pereira, Clovis Artur Silva, Sonia Maria Dozzi Brucki, Claudia da Costa Leite, Bruno Gualano
It has been hypothesized that dietary creatine could influence cognitive performance by increasing brain creatine in developing individuals. This double-blind, randomized, placebo-controlled, proof-of-principle study aimed to investigate the effects of creatine supplementation on cognitive function and brain creatine content in healthy youth. The sample comprised 67 healthy participants aged 10 to 12 years. The participants were given creatine or placebo supplementation for 7 days. At baseline and after the intervention, participants undertook a battery of cognitive tests...
October 5, 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28078601/inhibition-of-epithelial-mesenchymal-transition-and-metastasis-by-combined-tgfbeta-knockdown-and-metformin-treatment-in-a-canine-mammary-cancer-xenograft-model
#15
Camila Leonel, Thaiz Ferraz Borin, Lívia de Carvalho Ferreira, Marina Gobbe Moschetta, Marcio Chaim Bajgelman, Alicia M Viloria-Petit, Debora Aparecida Pires de Campos Zuccari
Epithelial mesenchymal transition (EMT) is a process by which epithelial cells acquire mesenchymal properties, generating metastases. Transforming growth factor beta (TGF-β) is associated with this malignancy by having the ability to induce EMT. Metformin, has been shown to inhibit EMT in breast cancer cells. Based on this evidence we hypothesize that treatment with metformin and the silencing of TGF-β, inhibits the EMT in cancer cells. Canine metastatic mammary tumor cell line CF41 was stably transduced with a shRNA-lentivirus, reducing expression level of TGF-β1...
January 11, 2017: Journal of Mammary Gland Biology and Neoplasia
https://www.readbyqxmd.com/read/28076626/development-of-a-multifunctional-needle-for-percutaneous-heart-biopsy-and-cell-therapy-a-technical-note
#16
Nathan Valle Soubihe, Agnes Afrodite S Albuquerque, Livia Arcêncio, José Antonio Thomazini, Andre Schmidt, Paulo Roberto B Evora
Validation of transendocardial injection as a method for delivering therapeutic agents to the diseased heart is increasing. Puncture heart biopsies should re-emerge as a possible alternative method to allow access to the myocardium and implantable biomaterial for cell therapy. Therefore, this work aims to present a percutaneous puncture device for biopsy and intramyocardial biomaterial injection, standardize the technique and attest to the safety of the method. The adaptation consists of creating myocardial microlesions that allow for better fixation of stem cells...
November 2016: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28076526/perception-of-pre-and-post-hiv-test-counseling-among-patients-diagnosed-with-aids-in-adolescence-hiv-test-counseling-for-adolescents
#17
Stella Regina Taquette, Adriana de Oliveira Rodrigues, Lívia Rocha Bortolotti
Pre- and post-HIV test counseling has singular importance in adolescence, since it is a phase of great changes, and AIDS is an incurable chronic disease. In order to comprehend the perception of young people with AIDS diagnosed in adolescence regarding the counseling received upon testing, we conducted 39 in-depth interviews, with 23 in female patients and 16 male patients, and then analyzed the data with extensive reading, categorization and interpretation on a comprehensive basis. The results revealed that less than one third received pre-test counseling (30...
January 2017: Ciência & Saúde Coletiva
https://www.readbyqxmd.com/read/28074538/ultrasound-biomicroscopy-and-tonometry-in-ophthalmologically-normal-pigeon-eyes
#18
Sangwan Park, Seonmi Kang, Jaegook Lim, Eunjin Park, Taekjin Nam, Seowoo Jeong, Kangmoon Seo
OBJECTIVE: To evaluate the feasibility of ultrasound biomicroscopy (UBM) and tonometry in pigeons and to provide biometric reference ranges for normal pigeon eyes. ANIMALS STUDIED: Ten pigeons (Columba livia var. domestica) with ophthalmologically normal eyes. PROCEDURES: Ophthalmic examinations, including slit-lamp biomicroscopy and tonometry, were performed to confirm that the eyes were normal. UBM was then performed on the left eye. On each obtained image, the ciliary cleft (CC) length, CC width, and CC area, and iridocorneal angle (ICA) were measured...
January 11, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28070697/development-of-a-dsred-expressing-heparg-cell-line-for-real-time-monitoring-of-hepatocyte-like-cell-differentiation-by-fluorescence-imaging-with-application-in-screening-of-novel-geometric-microstructured-cell-growth-substrates
#19
Mihaela Uta, Livia E Sima, Patrik Hoffmann, Valentina Dinca, Norica Branza-Nichita
The bipotent nature of the HepaRG cell line is a unique property among human hepatoma-derived cells. Cell treatment with specific differentiation inducers results in a mixture of hepatocyte- and biliary-like cells, accompanied by upregulation of liver-specific proteins, drug metabolizing enzymes, transcription regulators, membrane receptors or innate immune response effectors. These features make the HepaRG cells a suitable and handy replacement for primary hepatocytes, to study hepatic functions in vitro. However, cell differentiation is a long, variable process, requiring special culture conditions, while the resulting mixed cell populations is usually a major drawback...
March 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28069354/bufadienolides-from-amphibians-a-promising-source-of-anticancer-prototypes-for-radical-innovation-apoptosis-triggering-and-na-k-atpase-inhibition
#20
REVIEW
Lívia Queiroz de Sousa, Kátia da Conceição Machado, Samara Ferreira de Carvalho Oliveira, Lidiane da Silva Araújo, Evaldo Dos Santos Monção-Filho, Ana Amélia de Carvalho Melo-Cavalcante, Gerardo Magela Vieira-Júnior, Paulo Michel Pinheiro Ferreira
Amphibians present pharmacologically active aliphatic, aromatic and heterocyclic molecules in their skin as defense against microorganisms, predators and infections, such as steroids, alkaloids, biogenic amines, guanidine derivatives, proteins and peptides. Based on the discovered bioactive potential of bufadienolides, this work reviewed the contribution of amphibians, especially from members of Bufonidae family, as source of new cytotoxic and antitumor molecules, highlighting the mechanisms responsible for such amazing biological potentialities...
January 6, 2017: Toxicon: Official Journal of the International Society on Toxinology
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