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https://www.readbyqxmd.com/read/28332760/cytotoxic-essential-oils-from-eryngium-campestre-and-eryngium-amethystinum-apiaceae-growing-in-central-italy
#1
Kevin Cianfaglione, Evy E Blomme, Luana Quassinti, Massimo Bramucci, Giulio Lupidi, Stefano Dall'Acqua, Filippo Maggi
Eryngium campestre and E. amethystinum are thorny herbs belonging to the Apiaceae family and spontaneously growing in stony pastures and dry meadows, preferentially on calcareous substrates. In the Mediterranean countries, these plants have been used as a food or traditional remedies to treat various ailments. In the present work, we have analysed the chemical composition of the essential oils distilled from the aerial parts by GC-FID and GC-MS, and evaluated their cytotoxic effects on a panel of human cancer cells, namely A375 (human malignant melanoma), MDA-MB 231 cells (human breast adenocarcinoma) and HCT116 cells (human colon carcinoma), by the MTT assay...
March 23, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28331293/risk-assessment-and-experimental-design-in-the-development-of-a-prolonged-release-drug-delivery-system-with-paliperidone
#2
Sonia Iurian, Luana Turdean, Ioan Tomuta
This study focuses on the development of a drug product based on a risk assessment-based approach, within the quality by design paradigm. A prolonged release system was proposed for paliperidone (Pal) delivery, containing Kollidon(®) SR as an insoluble matrix agent and hydroxypropyl cellulose, hydroxypropyl methylcellulose (HPMC), or sodium carboxymethyl cellulose as a hydrophilic polymer. The experimental part was preceded by the identification of potential sources of variability through Ishikawa diagrams, and failure mode and effects analysis was used to deliver the critical process parameters that were further optimized by design of experiments...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28327811/undiagnosed-acute-hiv-infection-identified-through-rna-testing-of-pooled-serum-samples-obtained-during-a-dengue-outbreak-in-s%C3%A3-o-paulo-brazil
#3
Elaine Monteiro Matsuda, Daniela Rodrigues Colpas, Norberto Camilo Campos, Luana Portes Ozorio Coelho, Andreia Moreira Dos Santos Carmo, Luís Fernando de Macedo Brígido
INTRODUCTION: Improving HIV diagnostics and treatment is necessary to end the AIDS epidemic. Pooled plasma can be used to identify patients with acute HIV disease, even before serological tests. During dengue outbreaks, patients having symptoms common to other acute viral diseases might seek medical care. METHODS: We evaluated HIV RNA in pooled seronegative dengue samples. RESULTS: After excluding individuals with a known HIV diagnosis, an HIV-1 prevalence of 0...
January 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28327256/origin-and-distribution-of-sporothrix-globosa-causing-sapronoses-in-asia
#4
Tarek A A Moussa, Naif M S Kadasa, Hassan S Al Zahrani, Sarah Abdallah Ahmed, Peiying Feng, Albertus H G Gerrits van den Ende, Yu Zhang, Rui Kano, Fuqiu Li, Shanshan Li, Yang Song, Bilin Dong, Luana Rossato, Somayeh Dolatabadi, Sybren de Hoog
PURPOSE: The aim of the study was to evaluate the main sources and epidemiological patterns and speculate on the evolutionary origin of Sporothrix globosa in Asia. METHODOLOGY: Case and case series literature on sporotrichosis in Asia from January 2007 onwards were reviewed using meta-analysis. Phylogenetic analysis of relevant S. globosa was carried out on the basis of concatenated sequences of ITS, TEF3 and CAL. A haplotype network of CAL sequences of 281 Sporothrix isolates was analysed to determine the population structure of S...
March 23, 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28323903/global-potential-distribution-of-drosophila-suzukii-diptera-drosophilidae
#5
Luana A Dos Santos, Mayara F Mendes, Alexandra P Krüger, Monica L Blauth, Marco S Gottschalk, Flávio R M Garcia
Drosophila suzukii (Matsumura) is a species native to Western Asia that is able to pierce intact fruit during egg laying, causing it to be considered a fruit crop pest in many countries. Drosophila suzukii have a rapid expansion worldwide; occurrences were recorded in North America and Europe in 2008, and South America in 2013. Due to this rapid expansion, we modeled the potential distribution of this species using the Maximum Entropy Modeling (MaxEnt) algorithm and the Genetic Algorithm for Ruleset Production (GARP) using 407 sites with known occurrences worldwide and 11 predictor variables...
2017: PloS One
https://www.readbyqxmd.com/read/28322957/cellulose-nanocrystals-from-acacia-bark-influence-of-solvent-extraction
#6
Ticiane Taflick, Luana A Schwendler, Simone M L Rosa, Clara I D Bica, Sônia M B Nachtigall
The isolation of cellulose nanocrystals from different lignocellulosic materials has shown increased interest in academic and technological research. These materials have excellent mechanical properties and can be used as nanofillers for polymer composites as well as transparent films for various applications. In this work, cellulose isolation was performed following an environmental friendly procedure without chlorine. Cellulose nanocrystals were isolated from the exhausted acacia bark (after the industrial process of extracting tannin) with the objective of evaluating the effect of the solvent extraction steps on the characteristics of cellulose and cellulose nanocrystals...
March 17, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28321201/placebo-and-nocebo-effects-the-advantage-of-measuring-expectations-and-psychological-factors
#7
Nicole Corsi, Luana Colloca
Several studies have explored the predictability of placebo and nocebo individual responses by investigating personality factors and expectations of pain decreases and increases. Psychological factors such as optimism, suggestibility, empathy and neuroticism have been linked to placebo effects, while pessimism, anxiety and catastrophizing have been associated to nocebo effects. We aimed to investigate the interplay between psychological factors, expectations of low and high pain and placebo hypoalgesia and nocebo hyperalgesia...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28315227/insulin-like-growth-factor-1-gene-polymorphism-in-women-with-breast-cancer
#8
Danylo Rafhael Costa-Silva, Maria da Conceição Barros-Oliveira, Rafael Soares Borges, Larysse Maira Campos-Verdes, João Paulo da Silva-Sampaio, Carla Solange Escorcio-Dourado, Luana Mota Martins, Airlane Pereira Alencar, Edmund Chada Baracat, Vladimir Costa Silva, Benedito Borges da Silva
Breast cancer is a disease of unknown etiology; however, the major risk factors are genetic alterations. Studies have demonstrated an association between insulin-like growth factor 1 (IGF-1) gene polymorphism and cell proliferation and reduced apoptosis, in addition to its role in breast cancer growth and aggressiveness. Two polymorphic variants of the IGF-1 gene are highlighted in association with breast cancer, rs6220 and rs7136446, although controversy exists as to this relationship. The current study included 137 women (68 breast cancer cases and 69 controls without breast cancer) who had 3 ml of peripheral blood drawn for the study of genomic DNA extracted from leukocytes using the genotyping technique by real-time polymerase chain reaction...
April 2017: Medical Oncology
https://www.readbyqxmd.com/read/28314199/unusual-ultrasound-appearance-of-small-bowel-intussusception-and-secondary-bowel-obstruction-in-a-child-with-peutz-jeghers-syndrome
#9
Lei Wu, Ramesh S Iyer, George T Drugas, A Luana Stanescu
Small bowel intussusception (SBI) in pediatric patients resolves spontaneously in the majority of cases. Pathologic small bowel intussusception with a lead point is rare in children. Ultrasound (US) is the preferred initial imaging study for the diagnosis of intussusception. We report a case of long-segment SBI and secondary bowel obstruction caused by a large hamartomatous polyp. This case emphasizes unique, atypical ultrasound findings that may be encountered in small bowel intussusception, with correlative radiographic, CT (computed tomography) and intra-operative findings...
March 9, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/28299950/chemical-composition-antioxidant-activity-and-cytotoxicity-on-tumour-cells-of-the-essential-oil-from-flowers-of-magnolia-grandiflora-cultivated-in-iran
#10
Mohammad Reza Morshedloo, Luana Quassinti, Massimo Bramucci, Giulio Lupidi, Filippo Maggi
Magnolia grandiflora (Magnoliaceae) is an evergreen tree with fragrant and showy flowers native to southeastern USA but widely cultivated all over the world and used in cosmetics industry in treatment of skin diseases. Here, we report on the chemical analysis of the essential oil obtained from flowers of plants cultivated in Iran, together with the evaluation of its antioxidant and cytotoxic activities. The essential oil composition was dominated by bioactive sesquiterpenes, namely β-elemene, bicyclogermacrene, germacrene D and (E)-caryophyllene...
March 16, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28298929/%C3%AE-arrestin1-mir-326-transcription-unit-is-epigenetically-regulated-in-neural-stem-cells-where-it-controls-stemness-and-growth-arrest
#11
Agnese Po, Federica Begalli, Luana Abballe, Vincenzo Alfano, Zein Mersini Besharat, Giuseppina Catanzaro, Alessandra Vacca, Maddalena Napolitano, Marco Tafani, Felice Giangaspero, Franco Locatelli, Elisabetta Ferretti, Evelina Miele
Cell development is regulated by a complex network of mRNA-encoded proteins and microRNAs, all funnelling onto the modulation of self-renewal or differentiation genes. How intragenic microRNAs and their host genes are transcriptionally coregulated and their functional relationships for the control of neural stem cells (NSCs) are poorly understood. We propose here the intragenic miR-326 and its host gene β-arrestin1 as novel players whose epigenetic silencing maintains stemness in normal cerebellar stem cells...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28296649/a-nomogram-to-predict-5-fluorouracil-toxicity-when-pharmacogenomics-meets-the-patient
#12
Andrea Botticelli, Concetta E Onesti, Lidia Strigari, Mario Occhipinti, Francesca R Di Pietro, Bruna Cerbelli, Antonella Petremolo, Elisabetta Anselmi, Serena Macrini, Michela Roberto, Rosa Falcone, Luana Lionetto, Marina Borro, Annalisa Milano, Giovanna Gentile, Maurizio Simmaco, Paolo Marchetti, Federica Mazzuca
Fluoropyrimidines combined with other agents are commonly used for gastrointestinal cancer treatment. Considering that severe toxicities occur in 30% of patients, we aimed to structure a nomogram to predict toxicity, based on metabolic parameter and patients' characteristics. We retrospectively enrolled patients affected by gastrointestinal tract cancers. Pretreatment 5-fluorouracil (5-FU) degradation rate and DPYD, TSER, MTHFR A1298T, and C677T gene polymorphisms were characterized. Data on toxicities were collected according to CTCAE v3...
March 14, 2017: Anti-cancer Drugs
https://www.readbyqxmd.com/read/28294682/rapid-screening-technique-to-identify-sudan-dyes-i-to-iv-in-adulterated-tomato-sauce-chilli-powder-and-palm-oil-by-innovative-high-resolution-mass-spectrometry
#13
Simona Sciuto, Giovanna Esposito, Luana Dell'Atti, Chiara Guglielmetti, Pier Luigi Acutis, Francesca Martucci
Sudan dyes are synthetic azo dyes used by industry in a variety of applications. Classified as carcinogenic, they are not allowed in foodstuffs; however, their presence as adulterants in food products has been regularly reported. Here, we describe an innovative screening method to detect Sudan I, II, III, and IV in tomato sauce, palm oil, and chilli powder. The method entails minimal sample preparation, completely avoiding the liquid chromatography phase, followed by detection and identification through atmospheric pressure chemical ionization time-of-flight mass spectrometry, in positive ionization mode...
March 15, 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28291990/medicinal-plants-in-the-treatment-of-colitis-evidence-from-preclinical-studies
#14
Marília T Santana, Luana M Cercato, Janaíne P Oliveira, Enilton A Camargo
Ulcerative colitis is a chronic inflammatory condition whose treatment includes aminosalicylates, corticosteroids, and immunomodulators. Medicinal plants seem to be an important alternative treatment for this condition. They have been the subject of a great number of studies in recent years. This study was conducted to systematically review the medicinal plants tested in experimental models of ulcerative colitis. We conducted a systematic literature search through specialized databases (PUBMED, SCOPUS, EMBASE, MEDLINE, LILACS, SCIELO, and SCISEARCH) and selected articles published between January 2000 and June 21, 2016 by using "medicinal plants" and "ulcerative colitis" as key words...
March 14, 2017: Planta Medica
https://www.readbyqxmd.com/read/28287908/comparison-of-different-advanced-oxidation-processes-for-the-removal-of-amoxicillin-in-aqueous-solution
#15
Fernanda Siqueira Souza, Vanessa Vargas da Silva, Catiusa Kuchak Rosin, Luana Hainzenreder, Alexandre Arenzon, Liliana Amaral Féris
Amoxicillin (AMX) is a widely used penicillin-type antibiotic whose presence in the environment has been investigated. In this work, the degradation of the AMX in aqueous solutions by ozonation, ozonation with UV radiation (O3/UV), homogeneous catalytic ozonation (O3/Fe(2+)) and homogeneous photocatalytic ozonation (O3/Fe(2+)/UV) was investigated. The performance results have been compared in terms of removal of amoxicillin and total organic carbon (mineralization efficiency). In all processes, complete amoxicillin degradation was obtained after 5 min...
March 13, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28283728/survey-of-gadolinium-based-contrast-agent-utilization-among-the-members-of-the-society-for-pediatric-radiology-a-quality-and-safety-committee-report
#16
Einat Blumfield, Michael M Moore, Mary K Drake, Thomas R Goodman, Kristopher N Lewis, Laura T Meyer, Thang D Ngo, Christina Sammet, Arta Luana Stanescu, David W Swenson, Thomas L Slovis, Ramesh S Iyer
BACKGROUND: Gadolinium-based contrast agents (GBCAs) have been used for magnetic resonance (MR) imaging over the last three decades. Recent reports demonstrated gadolinium retention in patients' brains following intravenous administration. Since gadolinium is a highly toxic heavy metal, there is a potential for adverse effects from prolonged retention or deposition, particularly in children. For this reason, the Society (SPR) for Pediatric Radiology Quality and Safety committee conducted a survey to evaluate the current status of GBCAs usage among pediatric radiologists...
March 10, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28279754/estrogen-receptors-er%C3%AE-and-er%C3%AE-participation-in-hypothalamus-pituitary-adrenal-axis-activation-by-hemorrhagic-stress
#17
Luana Maria Silva Alves, Procópio Cleber Gama de Barcellos Filho, Celso Rodrigues Franci
The sympato-adrenal-system and hypothalamus-pituitary-adrenal (HPA) axis are anatomically and functionally connected with participation of several brain areas that express estrogen receptors (ERα and ERβ). We assessed the neuronal activity of these areas for FOS expression and the action of PPT (ERα agonist) or DPN (ERβ agonist) in HPA axis activity during hemorrhagic stress. Ovariectomized Wistar rats treated with vehicle (DMSO) or ER agonists were catheterized for blood collection. Animals received (control) or not (hemorrhagic) immediate reposition with the same volume of saline...
March 6, 2017: Neuroscience
https://www.readbyqxmd.com/read/28278620/chemical-composition-and-antimicrobial-activity-of-the-essential-oils-of-some-species-of-anthemis-sect-anthemis-asteraceae-from-sicily
#18
Luana Riccobono, Antonella Maggio, Maurizio Bruno, Vivienne Spadaro, Francesco Maria Raimondo
The chemical composition of the essential oils isolated from the aerial parts of Anthemis arvensis L. subsp. arvensis, Anthemis cretica subsp. messanensis (Brullo) Giardina & Raimondo and from flowers and leaves of Anthemis cretica subsp. columnae (Ten.) Frezén were determinated by GC-FID and GC-MS analyses. Torreyol (85.4%) was recognised as the main constituent of the Anthemis arvensis subsp. arvensis essential oil, while in the essential oils of Anthemis cretica subsp. messanensis, collected on the rock and cultivated in Hortus Botanicus Panormitanus, (E)-chrysanthenyl acetate (28...
March 3, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28277178/estimate-of-the-theoretical-maximum-daily-intake-of-sunset-yellow-fcf-by-the-brazilian-population
#19
Luana Carolina Alves Feitosa, Patricia Da Silva Rodrigues, Adson Storck Da Silva, Alessandro De Oliveira Rios, Florencia Cladera-Olivera
This study estimated the theoretical maximum daily intake (TMDI) of Sunset Yellow (SY) synthetic food dye by the Brazilian population through food consumption data from the Household Budget Survey (HBS) of the Brazilian Institute of Geography and Statistics (IBGE, 2008/09). The study covered the population in urban and rural areas in the five regions of the country, and from different age groups, in order to verify if it were possible to exceed the acceptable daily intake (ADI) of SY, which is 4.0 mg kg(-1) body weight...
February 20, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28271525/survey-of-malassezia-sp-and-dermatophytes-in-the-cutaneous-microbiome-of-free-ranging-golden-headed-lion-tamarins-leontopithecus-chrysomelas-kuhl-1820
#20
Juan Ja Neves, Marcelo Francelino, Flavia Gl Silva, Luana Cl Baptista, Marina G Bueno, José L Catão-Dias, Camila Molina, Maria Cm Kierulff, Alcides Pissinatti, Selene DA Coutinho
BACKGROUND: Data about the presence of fungi on the cutaneous surface of wild animals are scarce. The aim of this study was to survey dermatophytes and Malassezia sp in the external ear canal and haircoat of Leontopithecus chrysomelas. METHODS: A total of 928 clinical samples were collected from 232 animals: For Malassezia screening 696 samples were studied, 464 of cerumen and 232 of haircoat; another 232 haircoat samples were studied for dermatophyte analysis. RESULTS: A geophilic dermatophyte, Microsporum cookie, was isolated from one young female...
March 8, 2017: Journal of Medical Primatology
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