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https://www.readbyqxmd.com/read/28619415/international-travelers-sociodemographic-health-and-travel-characteristics-an-italian-study
#1
Gianmarco Troiano, Astrid Mercone, Alessandra Bagnoli, Nicola Nante
BACKGROUND: Approximately the 8% of travelers requires medical care, with the diagnosis of a vaccine-preventable disease. The aim of our study was to analyze the socio-demographic, health and travel characteristics of the Italian international travelers. METHODS: We conducted a cross sectional study from January 2015 to June 2016, at the Travel Medicine Clinic of Siena, asking the doctor to interview patients who attended the Clinic, recording socio-demographic and travel information, malaria prophylaxis, vaccinations...
March 2017: Annals of Global Health
https://www.readbyqxmd.com/read/28560547/gender-differences-in-resistance-to-schooling-the-role-of-dynamic-peer-influence-and-selection-processes
#2
Sara Geven, Jan O Jonsson, Frank van Tubergen
Boys engage in notably higher levels of resistance to schooling than girls. While scholars argue that peer processes contribute to this gender gap, this claim has not been tested with longitudinal quantitative data. This study fills this lacuna by examining the role of dynamic peer-selection and influence processes in the gender gap in resistance to schooling (i.e., arguing with teachers, skipping class, not putting effort into school, receiving punishments at school, and coming late to class) with two-wave panel data...
May 30, 2017: Journal of Youth and Adolescence
https://www.readbyqxmd.com/read/28531185/thermal-stability-and-kinetic-constants-for-129-variants-of-a-family-1-glycoside-hydrolase-reveal-that-enzyme-activity-and-stability-can-be-separately-designed
#3
Dylan Alexander Carlin, Siena Hapig-Ward, Bill Wayne Chan, Natalie Damrau, Mary Riley, Ryan W Caster, Bowen Bethards, Justin B Siegel
Accurate modeling of enzyme activity and stability is an important goal of the protein engineering community. However, studies seeking to evaluate current progress are limited by small data sets of quantitative kinetic constants and thermal stability measurements. Here, we report quantitative measurements of soluble protein expression in E. coli, thermal stability, and Michaelis-Menten constants (kcat, KM, and kcat/KM) for 129 designed mutants of a glycoside hydrolase. Statistical analyses reveal that functional Tm is independent of kcat, KM, and kcat/KM in this system, illustrating that an individual mutation can modulate these functional parameters independently...
2017: PloS One
https://www.readbyqxmd.com/read/28515628/epidemiology-of-herpes-simplex-virus-type-1-and-2-in-italy-a-seroprevalence-study-from-2000-to-2014
#4
REVIEW
S Marchi, C M Trombetta, R Gasparini, N Temperton, E Montomoli
Herpes simplex viruses (HSV) are among the most widespread causative agents of human viral infections. HSV-2 is one of the commonest causes of genital disease, while HSV-1 is associated primarily with orolabial ulceration; however, recent changes in HSV epidemiology showed an increase in genital and neonatal herpes particularly caused by HSV-1. The main purpose of this study was to assess the seroprevalence of HSV-1 and HSV-2 in a random population in Siena (central Italy) in 2000, 2005 and 2013-2014 and in Bari (southern Italy) in 2005...
March 2017: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/28483577/formoterol-and-fluticasone-propionate-combination-improves-histone-deacetylation-and-anti-inflammatory-activities-in-bronchial-epithelial-cells-exposed-to-cigarette-smoke
#5
M Ferraro, M Gjomarkaj, L Siena, S Di Vincenzo, E Pace
BACKGROUND: The addition of long-acting beta2-agonists (LABAs) to corticosteroids improves asthma control. Cigarette smoke exposure, increasing oxidative stress, may negatively affect corticosteroid responses. The anti-inflammatory effects of formoterol (FO) and fluticasone propionate (FP) in human bronchial epithelial cells exposed to cigarette smoke extracts (CSE) are unknown. AIMS: This study explored whether FP, alone and in combination with FO, in human bronchial epithelial cellline (16-HBE) and primary bronchial epithelial cells (NHBE), counteracted some CSE-mediated effects and in particular some of the molecular mechanisms of corticosteroid resistance...
May 5, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28472372/proteinsplus-a-web-portal-for-structure-analysis-of-macromolecules
#6
Rainer Fährrolfes, Stefan Bietz, Florian Flachsenberg, Agnes Meyder, Eva Nittinger, Thomas Otto, Andrea Volkamer, Matthias Rarey
With currently more than 126 000 publicly available structures and an increasing growth rate, the Protein Data Bank constitutes a rich data source for structure-driven research in fields like drug discovery, crop science and biotechnology in general. Typical workflows in these areas involve manifold computational tools for the analysis and prediction of molecular functions. Here, we present the ProteinsPlus web server that offers a unified easy-to-use interface to a broad range of tools for the early phase of structure-based molecular modeling...
May 2, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28469572/retrospective-diagnosis-of-parkinsonian-syndromes-using-whole-brain-atrophy-rates
#7
Carlos Guevara, Kateryna Bulatova, Wendy Soruco, Guido Gonzalez, Gonzalo A Farías
Objective: The absence of markers for ante-mortem diagnosis of idiopathic Parkinson's disease (IPD), multiple system atrophy (MSA), and progressive supranuclear palsy (PSP) results in these disorders being commonly mistaken for each other, particularly in the initial stages. We aimed to investigate annualized whole-brain atrophy rates (a-WBAR) in these disorders to aid in the diagnosis between IPD vs. PSP and MSA. Methods: Ten healthy controls, 20 IPD, 39 PSP, and 41 MSA patients were studied using Structural Imaging Evaluation with Normalization of Atrophy (SIENA)...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28464417/a-novel-semiautomated-pipeline-to-measure-brain-atrophy-and-lesion-burden-in-multiple-sclerosis-a-long-term-comparative-study
#8
Tomas Uher, Jan Krasensky, Manuela Vaneckova, Lukas Sobisek, Zdenek Seidl, Eva Havrdova, Niels Bergsland, Michael G Dwyer, Dana Horakova, Robert Zivadinov
BACKGROUND AND PURPOSE: Lesion burden and brain volume changes are frequent end points in research but nowadays are becoming important in the clinical practice of multiple sclerosis (MS). The objective of this study was to investigate the correlation between magnetic resonance imaging (MRI) measures obtained by in-house developed ScanView software and commonly used volumetric techniques for assessment of T2 lesion and whole brain volumes and their changes. METHODS: Together 3,340 MRI scans from 209 patients after first demyelinating event suggestive of MS, 181 relapsing-remitting MS patients and 43 controls were analyzed...
May 2, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28449055/primary-tumor-sidedness-has-an-impact-on-prognosis-and-treatment-outcome-in-metastatic-colorectal-cancer-results-from-two-randomized-first-line-panitumumab-studies
#9
N Boeckx, R Koukakis, K Op de Beeck, C Rolfo, G Van Camp, S Siena, J Tabernero, J-Y Douillard, T André, M Peeters
Background: : Previous studies have reported the prognostic impact of primary tumor sidedness in metastatic colorectal cancer (mCRC) and its influence on cetuximab efficacy. The present retrospective analysis of two panitumumab trials investigated a possible association between tumor sidedness and treatment efficacy in first-line mCRC patients with RAS wild-type (WT) primary tumors. Material and methods: Data from two randomized first-line panitumumab trials were analyzed for treatment outcomes by primary tumor sidedness for RAS WT patients...
April 25, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28431521/a-reference-floral-transcriptome-of-sexual-and-apomictic-paspalum-notatum
#10
Juan Pablo A Ortiz, Santiago Revale, Lorena A Siena, Maricel Podio, Luciana Delgado, Juliana Stein, Olivier Leblanc, Silvina C Pessino
BACKGROUND: Paspalum notatum Flügge is a subtropical grass native to South America, which includes sexual diploid and apomictic polyploid biotypes. In the past decade, a number of apomixis-associated genes were discovered in this species through genetic mapping and differential expression surveys. However, the scarce information on Paspalum sequences available in public databanks limited annotations and functional predictions for these candidates. RESULTS: We used a long-read 454/Roche FLX+ sequencing strategy to produce robust reference transcriptome datasets from florets of sexual and apomictic Paspalum notatum genotypes and delivered a list of transcripts showing differential representation in both reproductive types...
April 21, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28431288/longitudinal-whole-brain-atrophy-and-ventricular-enlargement-in-nondemented-parkinson-s-disease
#11
Elijah Mak, Li Su, Guy B Williams, Michael J Firbank, Rachael A Lawson, Alison J Yarnall, Gordon W Duncan, Brit Mollenhauer, Adrian M Owen, Tien K Khoo, David J Brooks, James B Rowe, Roger A Barker, David J Burn, John T O'Brien
We investigated whole-brain atrophy and ventricular enlargement over 18 months in nondemented Parkinson's disease (PD) and examined their associations with clinical measures and baseline CSF markers. PD subjects (n = 100) were classified at baseline into those with mild cognitive impairment (MCI; PD-MCI, n = 36) and no cognitive impairment (PD-NC, n = 64). Percentage of whole-brain volume change (PBVC) and ventricular expansion over 18 months were assessed with FSL-SIENA and ventricular enlargement (VIENA) respectively...
July 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28425689/normal-values-of-creatine-kinase-and-of-mb-creatine-kinase-at-birth-in-healthy-babies
#12
Carlo V Bellieni, Barbara Tomasini, Carlotta Bracciali, Giuseppe Buonocore
BACKGROUND: Today, few studies have been accomplished in order to determine serum creatine kinase (CK) activity in newborns by considering small groups of babies and without taking into account gestational age (GA) differences. Some authors have demonstrated that neonatal CK activity value at birth is higher than the normal range of CK activity considering for adults or older children. The objective of this study is to assess normal values of CK and MB-CK in neonatal blood, according to babies' GA...
April 20, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28420130/gaseous-elemental-mercury-and-total-and-leached-mercury-in-building-materials-from-the-former-hg-mining-area-of-abbadia-san-salvatore-central-italy
#13
Orlando Vaselli, Barbara Nisi, Daniele Rappuoli, Jacopo Cabassi, Franco Tassi
Mercury has a strong environmental impact since both its organic and inorganic forms are toxic, and it represents a pollutant of global concern. Liquid Hg is highly volatile and can be released during natural and anthropogenic processes in the hydrosphere, biosphere and atmosphere. In this study, the distribution of Gaseous Elemental Mercury (GEM) and the total and leached mercury concentrations on paint, plaster, roof tiles, concrete, metals, dust and wood structures were determined in the main buildings and structures of the former Hg-mining area of Abbadia San Salvatore (Siena, Central Italy)...
April 15, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28410585/practical-application-of-opt-out-recruitment-methods-in-two-health-services-research-studies
#14
Christopher J Miller, James F Burgess, Ellen P Fischer, Deborah J Hodges, Lindsay K Belanger, Jessica M Lipschitz, Siena R Easley, Christopher J Koenig, Regina L Stanley, Jeffrey M Pyne
BACKGROUND: Participant recruitment is an ongoing challenge in health research. Recruitment may be especially difficult for studies of access to health care because, even among those who are in care, people using services least often also may be hardest to contact and recruit. Opt-out recruitment methods (in which potential participants are given the opportunity to decline further contact about the study (opt out) following an initial mailing, and are then contacted directly if they have not opted out within a specified period) can be used for such studies...
April 14, 2017: BMC Medical Research Methodology
https://www.readbyqxmd.com/read/28391577/neoadjuvant-treatment-in-pancreatic-cancer-evidence-based-medicine-a-systematic-review-and-meta-analysis
#15
REVIEW
Francesco D'Angelo, Laura Antolino, Alessio Farcomeni, Dario Sirimarco, Andrea Kazemi Nava, Martina De Siena, Niccolò Petrucciani, Giuseppe Nigri, Stefano Valabrega, Paolo Aurello, Giovanni Ramacciato
Neoadjuvant treatment in non-metastatic pancreatic cancer (PaC) has the theoretical advantages of downstaging the tumor, sterilizing any present systemic undetectable disease, selecting patients for surgery and administering therapy to each patient. The aim of this systematic review is to analyze the state of the art on neoadjuvant protocols for non-metastatic PaC. A literature search over the last 10 years was conducted, and papers had to be focused on resectable, borderline resectable (BLR) or locally advanced (LA) histo- or cytologically proven PaC; to be prospective studies or prospectively collected databases; to report percentage of protocol achievement and survival data at least in an intention-to-treat (ITT) analysis...
May 2017: Medical Oncology
https://www.readbyqxmd.com/read/28382467/plasticity-of-resistance-and-sensitivity-to-anti-epidermal-growth-factor-receptor-inhibitors-in-metastatic-colorectal-cancer
#16
Andrea Sartore-Bianchi, Salvatore Siena
Colorectal cancer (CRC) is one of the most prevalent cancers and the second leading cause of cancer mortality worldwide. Survival in the metastatic setting has been gradually improved by the addition to cytotoxic chemotherapy of agents targeting the vascular endothelial growth factor (VEGF) and epidermal growth factor receptor (EGFR). Considerable heterogeneity exists within CRC due to the varied genetic and epigenetic mechanisms involved in differing pathways of carcinogenesis. The knowledge of molecular abnormalities underlying colorectal tumourigenesis and the progression of dysplastic precursors to invasive and ultimately metastatic lesions has advanced in recent years by comprehensive sequencing studies...
April 6, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28368455/tracking-a-cad-alk-gene-rearrangement-in-urine-and-blood-of-a-colorectal-cancer-patient-treated-with-an-alk-inhibitor
#17
G Siravegna, A Sartore-Bianchi, B Mussolin, A Cassingena, A Amatu, L Novara, M Buscarino, G Corti, G Crisafulli, A Bartolini, F Tosi, M Erlander, F Di Nicolantonio, S Siena, A Bardelli
Background: Monitoring response and resistance to kinase inhibitors is essential to precision cancer medicine, and is usually investigated by molecular profiling of a tissue biopsy obtained at progression. However, tumor heterogeneity and tissue sampling bias limit the effectiveness of this strategy. In addition, tissue biopsies are not always feasible and are associated with risks due to the invasiveness of the procedure. To overcome these limitations, blood-based liquid biopsy analysis has proven effective to non-invasively follow tumor clonal evolution...
June 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28298612/cell-scientist-to-watch-gaia-pigino
#18
(no author information available yet)
Gaia Pigino received her master's degree in natural science followed by a PhD in evolutionary biology - focusing on zoology and ecotoxicology - in the laboratory of Fabio Bernini at the University of Siena, Italy. She then joined the electron microscopy laboratory of Pietro Lupetti for her first postdoctoral position before moving to Zürich. There, supported by an EMBO Long-Term Fellowship, she worked with Takashi Ishikawa at the Swiss Federal Institute of Technology and the Paul Scherrer Institute in Villigen...
March 15, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28252003/integrating-liquid-biopsies-into-the-management-of-cancer
#19
REVIEW
Giulia Siravegna, Silvia Marsoni, Salvatore Siena, Alberto Bardelli
During cancer progression and treatment, multiple subclonal populations of tumour cells compete with one another, with selective pressures leading to the emergence of predominant subclones that replicate and spread most proficiently, and are least susceptible to treatment. At present, the molecular landscapes of solid tumours are established using surgical or biopsy tissue samples. Tissue-based tumour profiles are, however, subject to sampling bias, provide only a snapshot of tumour heterogeneity, and cannot be obtained repeatedly...
March 2, 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/28244584/factors-that-could-influence-women-s-participation-in-colorectal-cancer-screening-an-italian-study
#20
G Bocci, G Troiano, G Messina, N Nante, S Civitelli
BACKGROUND: Colorectal cancer (CRC) is the 2nd most common cancer in women worldwide. In Italy, only 50% of people invited to get the Fecal Occult Blood Test (FOBT) decided to do it. Women's participation in breast and cervical screening is, instead, very high (>70%). The aim of our study was to investigate the beliefs, the feelings and the psychological factors that could influence the participation of women in CRC screening. METHODS: We conducted a cross sectional study, in the Hospital of Siena, Central Italy, in 2011...
March 2017: Annali di Igiene: Medicina Preventiva e di Comunità
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