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https://www.readbyqxmd.com/read/29036195/mutational-and-large-deletion-study-of-genes-implicated-in-hereditary-forms-of-primary-hyperparathyroidism-and-correlation-with-clinical-features
#1
Elena Pardi, Simona Borsari, Federica Saponaro, Fausto Bogazzi, Claudio Urbani, Stefano Mariotti, Francesca Pigliaru, Chiara Satta, Fabiana Pani, Gabriele Materazzi, Paolo Miccoli, Lorena Grantaliano, Claudio Marcocci, Filomena Cetani
The aim of this study was to carry out genetic screening of the MEN1, CDKN1B and AIP genes, both by direct sequencing of the coding region and multiplex ligation-dependent probe amplification (MLPA) assay in the largest monocentric series of Italian patients with Multiple Endocrine Neoplasia type 1 syndrome (MEN1) and Familial Isolated Hyperparathyroidism (FIHP). The study also aimed to describe and compare the clinical features of MEN1 mutation-negative and mutation-positive patients during long-term follow-up and to correlate the specific types and locations of MEN1 gene mutations with onset and aggressiveness of the main MEN1 manifestations...
2017: PloS One
https://www.readbyqxmd.com/read/29027050/characterization-and-origin-of-organic-and-inorganic-pollution-in-urban-soils-in-pisa-tuscany-italy
#2
Roberto Cardelli, Giacomo Vanni, Fausto Marchini, Alessandro Saviozzi
We assessed the quality of 31 urban soils in Pisa by analyzing total petroleum hydrocarbons (TPHs), Cd, Cr, Cu, Hg, Mn, Ni, Pb, Zn, and the platinum group elements (PGEs). The risk was evaluated by the geological accumulation index (I geo) and the enrichment factor (EF). Results were compared with those obtained from a non-urban site and with the quantitative limits fixed by Italian legislation. In nearly all the monitored sites, the legal limit for TPH of 60 mg/kg in residential areas was exceeded, indicating widespread and intense pollution throughout the entire city area...
October 12, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29025406/impact-of-empagliflozin-on-subclinical-left-ventricular-dysfunctions-and-on-the-mechanisms-involved-in-myocardial-disease-progression-in-type-2-diabetes-rationale-and-design-of-the-empa-heart-trial
#3
Andrea Natali, Lorenzo Nesti, Iacopo Fabiani, Enrico Calogero, Vitantonio Di Bello
BACKGROUND: Asymptomatic left ventricular (LV) dysfunction is highly prevalent in type 2 diabetes patients. Unlike the other hypoglycemic drugs, SGLT2 inhibitors have shown potential benefits for reducing cardiovascular death and risk factors, aside from lowering plasma glucose levels. With this study we aim at determining whether the treatment with empagliflozin is associated with an improvement in LV functions in diabetic patients with asymptomatic LV dysfunction against Sitagliptin, which is presumably neutral on myocardial function...
October 12, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29022716/bespoke-diblock-copolymer-nanoparticles-enable-production-of-relatively-stable-oil-in-water-pickering-nanoemulsions
#4
Kate L Thompson, Natacha Cinotti, Elizabeth R Jones, Charlotte J Mable, Patrick William Fowler, Steven P Armes
Sterically-stabilized diblock copolymer nanoparticles with an intensity-average diameter of 25 nm are prepared in the form of a concentrated aqueous dispersion using polymerization-induced self-assembly (PISA). Addition of n-dodecane followed by high-shear homogenization produces n-dodecane-in-water Pickering macroemulsions of 22-46 µm diameter. If the nanoparticles are present in sufficient excess, subsequent processing using a high-pressure microfluidizer leads to formation of Pickering nanoemulsions with a mean droplet diameter below 200 nm...
October 12, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28983525/exploiting-the-2-amino-1-3-4-thiadiazole-scaffold-to-inhibit-trypanosoma-brucei-pteridine-reductase-in-support-of-early-stage-drug-discovery
#5
Pasquale Linciano, Alice Dawson, Ina Pöhner, David M Costa, Monica S Sá, Anabela Cordeiro-da-Silva, Rosaria Luciani, Sheraz Gul, Gesa Witt, Bernhard Ellinger, Maria Kuzikov, Philip Gribbon, Jeanette Reinshagen, Markus Wolf, Birte Behrens, Véronique Hannaert, Paul A M Michels, Erika Nerini, Cecilia Pozzi, Flavio di Pisa, Giacomo Landi, Nuno Santarem, Stefania Ferrari, Puneet Saxena, Sandra Lazzari, Giuseppe Cannazza, Lucio H Freitas-Junior, Carolina B Moraes, Bruno S Pascoalino, Laura M Alcântara, Claudia P Bertolacini, Vanessa Fontana, Ulrike Wittig, Wolfgang Müller, Rebecca C Wade, William N Hunter, Stefano Mangani, Luca Costantino, Maria P Costi
Pteridine reductase-1 (PTR1) is a promising drug target for the treatment of trypanosomiasis. We investigated the potential of a previously identified class of thiadiazole inhibitors of Leishmania major PTR1 for activity against Trypanosoma brucei (Tb). We solved crystal structures of several TbPTR1-inhibitor complexes to guide the structure-based design of new thiadiazole derivatives. Subsequent synthesis and enzyme- and cell-based assays confirm new, mid-micromolar inhibitors of TbPTR1 with low toxicity. In particular, compound 4m, a biphenyl-thiadiazole-2,5-diamine with IC50 = 16 μM, was able to potentiate the antitrypanosomal activity of the dihydrofolate reductase inhibitor methotrexate (MTX) with a 4...
September 30, 2017: ACS Omega
https://www.readbyqxmd.com/read/28967153/italian-prescribing-patterns-in-obsessive-compulsive-disorder
#6
Donatella Marazziti, Umberto Albert, Bernardo Dell'Osso, Antonio Tundo, Francesco Cuniberti, Giuseppe Maina, Ilenia Moroni, Beatrice Benatti, Federico Mucci, Gabriele Massimetti, Armando Piccinni, Vlasios Brakoulias
The aim of the present study was to investigate psychopharmacological prescribing patterns in a large sample (n = 1815) of patients suffering from obsessive-compulsive disorder (OCD) recruited in 4 Italian centers specialized in OCD, in comparison to available national and international guidelines. The centers were asked to complete a specific data sheet questionnaire on patients' therapeutic status. Statistical analyses were carried out by SPSS. The results showed that almost all patients referred to the centers of Milan, Pisa and Rome received psychotropic medications, whereas only 59...
October 2, 2017: Human Psychopharmacology
https://www.readbyqxmd.com/read/28946570/effects-of-postural-exercises-in-patients-with-parkinson-s-disease-and-pisa-syndrome-a-pilot-study
#7
Francesco Lena, Ennio Iezzi, Mohammad Etoom, Marco Santilli, Diego Centonze, Calogero Foti, Giovanni Grillea, Nicola Modugno
BACKGROUND: Pisa syndrome (PS) or lateral axial dystonia is often seen in patients with Parkinson's disease (PD). It is characterized by a marked and reversible lateral flexion of the trunk (LFT) more than 10°. OBJECTIVE: To assess the effectiveness of a program of postural exercises and assess the effectiveness in term of pattern of muscular hyperactivity. METHODS: A total of 6 patients with PD and PS enrolled in the program of 10 sessions of postural exercise (90 min/session)...
September 16, 2017: NeuroRehabilitation
https://www.readbyqxmd.com/read/28939533/comparative-mapping-of-on-targets-and-off-targets-for-the-discovery-of-anti-trypanosomatid-folate-pathway-inhibitors
#8
Joanna Panecka-Hofman, Ina Pöhner, Francesca Spyrakis, Talia Zeppelin, Flavio Di Pisa, Lucia Dello Iacono, Alessio Bonucci, Antonio Quotadamo, Alberto Venturelli, Stefano Mangani, Maria Paola Costi, Rebecca C Wade
BACKGROUND: Multi-target approaches are necessary to properly analyze or modify the function of a biochemical pathway or a protein family. An example of such a problem is the repurposing of the known human anti-cancer drugs, antifolates, as selective anti-parasitic agents. This requires considering a set of experimentally validated protein targets in the folate pathway of major pathogenic trypanosomatid parasites and humans: (i) the primary parasite on-targets: pteridine reductase 1 (PTR1) (absent in humans) and bifunctional dihydrofolate reductase-thymidylate synthase (DHFR-TS), (ii) the primary off-targets: human DHFR and TS, and (iii) the secondary on-target: human folate receptor β, a folate/antifolate transporter...
September 20, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28895728/polycaprolactone-nanocomposites-reinforced-with-cellulose-nanocrystals-surface-modified-via-covalent-grafting-or-physisorption-a-comparative-study
#9
Assya Boujemaoui, Carmen Cobo Sanchez, Joakim Engström, Carl Bruce, Linda Fogelström, Anna Carlmark, Eva Malmström
In the present work, cellulose nanocrystals (CNCs) have been surface-modified either via covalent grafting or through physisorption of poly(n-butyl methacrylate) (PBMA) and employed as reinforcement in PCL. Covalent grafting was achieved by surface-initiated atom transfer radical polymerization (SI-ATRP). Two approaches were utilized for the physisorption: using either micelles of poly(dimethyl aminoethyl methacrylate)-block-poly(n-butyl methacrylate) (PDMAEMA-b-PBMA) or latex nanoparticles of poly(dimethyl aminoethyl methacrylate-co-methacrylic acid)-block-poly(n-butyl methacrylate) (P(DMAEMA-co-MAA)-b-PBMA)...
October 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28888971/fungal-infection-in-neural-tissue-of-patients-with-amyotrophic-lateral-sclerosis
#10
Ruth Alonso, Diana Pisa, Ana M Fernández-Fernández, Alberto Rábano, Luis Carrasco
Amyotrophic lateral sclerosis (ALS) is a devastating neurodegenerative disease and the main cause of motor neuron pathology. The etiology of the disease remains unknown, and no effective therapy exists to halt the disease or improve the quality of life. Here, we provide compelling evidence for the existence of fungal infection in ALS. Immunohistochemistry analysis using a battery of antifungal antibodies revealed fungal structures such as yeast and hyphae in the motor cortex, the medulla and the spinal cord, in eleven patients with ALS...
September 6, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28880542/influence-of-size-and-shape-on-the-biodistribution-of-nanoparticles-prepared-by-polymerization-induced-self-assembly
#11
Sadik Kaga, Nghia P Truong, Lars Esser, Danielle Senyschyn, Amitav Sanyal, Rana Sanyal, John F Quinn, Thomas P Davis, Lisa M Kaminskas, Michael R Whittaker
Polymerization-induced self-assembly (PISA) is a facile one-pot synthetic technique for preparing polymeric nanoparticles with different sizes and shapes for application in a variety of fields including nanomedicine. However, the in vivo biodistribution of nanoparticles obtained by PISA still remains unclear. To address this knowledge gap, we report the synthesis, cytotoxicity, and biodistribution in an in vivo tumor-bearing mouse model of polystyrene micelles with various sizes and polystyrene filomicelles with different lengths prepared by PISA...
September 29, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28872185/cognitive-diagnosis-modelling-incorporating-item-response-times
#12
Peida Zhan, Hong Jiao, Dandan Liao
To provide more refined diagnostic feedback with collateral information in item response times (RTs), this study proposed joint modelling of attributes and response speed using item responses and RTs simultaneously for cognitive diagnosis. For illustration, an extended deterministic input, noisy 'and' gate (DINA) model was proposed for joint modelling of responses and RTs. Model parameter estimation was explored using the Bayesian Markov chain Monte Carlo (MCMC) method. The PISA 2012 computer-based mathematics data were analysed first...
September 5, 2017: British Journal of Mathematical and Statistical Psychology
https://www.readbyqxmd.com/read/28867829/ph-responsive-schizophrenic-diblock-copolymers-prepared-by-polymerization-induced-self-assembly
#13
Sarah L Canning, Thomas J Neal, Steven P Armes
Polymerization-induced self-assembly (PISA) is used for the highly convenient and efficient preparation of ampholytic diblock copolymer nanoparticles directly in acidic aqueous solution. Cationic nanoparticles comprising a protonated polyamine stabilizer block and a hydrophobic polyacid core-forming block are formed at pH 2. Micelle inversion occurs at pH 10 to produce anionic nanoparticles with an ionized polyacid stabilizer block and a hydrophobic polyamine core-forming block. Macroscopic precipitation occurs at around pH 6-7, which lies close to the isoelectric point of this ampholytic diblock copolymer...
August 22, 2017: Macromolecules
https://www.readbyqxmd.com/read/28837826/botulinum-toxin-in-parkinsonism-the-when-how-and-which-for-botulinum-toxin-injections
#14
Francisco Cardoso
The aim of this article is to provide a review of the use of injections of botulinum toxin in the management of selected symptoms and signs of Parkinson's disease and other forms of parkinsonism. Sialorrhea is defined as inability to control oral secretions, resulting in excessive saliva in the oropharynx. There is a high level of evidence for the treatment of sialorrhea in parkinsonism with injections of different forms of botulinum toxin type A as well as botulinum toxin type B. Tremor can be improved by the use of botulinum toxin injections but improved tremor control often leads to concomitant motor weakness, limiting its use...
August 23, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28832286/intersections-between-polyvictimisation-and-mental-health-among-adolescents-in-five-urban-disadvantaged-settings-the-role-of-gender
#15
Mphatso Kamndaya, Pedro T Pisa, Matthew F Chersich, Michele R Decker, Adesola Olumide, Rajib Acharya, Yan Cheng, Heena Brahmbhatt, Sinead Delany-Moretlwe
BACKGROUND: Polyvictimisation (PV) - exposure to violence across multiple contexts - causes considerable morbidity and mortality among adolescents. Despite high levels of violence in urban disadvantaged settings, gender differences in associations between PV and mental health have not been well established. METHODS: We analysed data from a survey with 2393 adolescents aged 15-19 years, recruited using respondent-driven sampling from urban disadvantaged settings in Baltimore (USA), Delhi (India), Ibadan (Nigeria), Johannesburg (South Africa) and Shanghai (China)...
July 4, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28832285/prevalence-of-anogenital-hpv-infection-related-disease-and-risk-factors-among-hiv-infected-men-in-inner-city-johannesburg-south-africa-baseline-findings-from-a-cohort-study
#16
Admire Chikandiwa, Lucy Chimoyi, Pedro T Pisa, Matthew F Chersich, Etienne E Muller, Pamela Michelow, Philippe Mayaud, Sinead Delany-Moretlwe
BACKGROUND: Persistent high-risk human papillomavirus (HR-HPV) infection is associated with the development of anogenital cancers, particularly in men living with HIV (MLWH). We describe the prevalence of anogenital HPV infection, abnormal anal cytology and anogenital warts (AGWs) in MLWH in Johannesburg, and explore whether HPV infection and receipt of antiretroviral treatment is associated with detection of abnormal anal cytology and AGWs. METHODS: We enrolled a cohort of 304 sexually-active MLWH ≥18 years, who completed a questionnaire and physical examination...
July 4, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28815313/epidemiology-and-cerebrovascular-events-related-to-cervical-and-intracranial-arteries-dissection-the-experience-of-the-city-of-pisa
#17
N Giannini, L Ulivi, M Maccarrone, V Montano, G Orlandi, E Ferrari, C Cravcenco, U Bonuccelli, M Mancuso
Spontaneous dissection of cervical arteries (sCAD) is a major cause of ischemic stroke in young patients, with an incidence varying from 1.7 to 3/100,000/year for extracranial internal carotid artery (ICAD) and 1 to 1.9/100,000/year for extracranial vertebral artery (VAD). Reliable epidemiological data on stroke incidence related to sCAD are scarce in Italy. This study aims to evaluate the incidence, clinical features, and outcome of cerebrovascular events related to sCAD and spontaneous intracranial arteries dissections (sIAD) in the city of Pisa (Italy)...
November 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28814976/analysis-of-proteomes-released-from-in-vitro-cultured-eight-clostridium-difficile-pcr-ribotypes-revealed-specific-expression-in-pcr-ribotypes-027-and-176-confirming-their-genetic-relatedness-and-clinical-importance-at-the-proteomic-level
#18
Jiri Dresler, Marcela Krutova, Alena Fucikova, Jana Klimentova, Veronika Hruzova, Miloslava Duracova, Katerina Houdkova, Barbora Salovska, Jana Matejkova, Martin Hubalek, Petr Pajer, Libor Pisa, Otakar Nyc
BACKGROUND: Clostridium difficile is the causative agent of C. difficile infection (CDI) that could be manifested by diarrhea, pseudomembranous colitis or life-threatening toxic megacolon. The spread of certain strains represents a significant economic burden for health-care. The epidemic successful strains are also associated with severe clinical features of CDI. Therefore, a proteomic study has been conducted that comprises proteomes released from in vitro cultured panel of eight different PCR ribotypes (RTs) and employs the combination of shotgun proteomics and label-free quantification (LFQ) approach...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28814009/preliminary-results-toward-a-naturally-controlled-multi-synergistic-prosthetic-hand
#19
Matteo Rossi, Cosimo Della Santina, Cristina Piazza, Giorgio Grioli, Manuel Catalano, Antonio Biechi
Robotic hands embedding human motor control principles in their mechanical design are getting increasing interest thanks to their simplicity and robustness, combined with good performance. Another key aspect of these hands is that humans can use them very effectively thanks to the similarity of their behavior with real hands. Nevertheless, controlling more than one degree of actuation remains a challenging task. In this paper, we take advantage of these characteristics in a multi-synergistic prosthesis. We propose an integrated setup composed of Pisa/IIT SoftHand 2 and a control strategy which simultaneously and proportionally maps the human hand movements to the robotic hand...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28805692/real-time-rain-rate-evaluation-via-satellite-downlink-signal-attenuation-measurement
#20
Filippo Giannetti, Ruggero Reggiannini, Marco Moretti, Elisa Adirosi, Luca Baldini, Luca Facheris, Andrea Antonini, Samantha Melani, Giacomo Bacci, Antonio Petrolino, Attilio Vaccaro
We present the NEFOCAST project (named by the contraction of "Nefele", which is the Italian spelling for the mythological cloud nymph Nephele, and "forecast"), funded by the Tuscany Region, about the feasibility of a system for the detection and monitoring of precipitation fields over the regional territory based on the use of a widespread network of new-generation Eutelsat "SmartLNB" (smart low-noise block converter) domestic terminals. Though primarily intended for interactive satellite services, these devices can also be used as weather sensors, as they have the capability of measuring the rain-induced attenuation incurred by the downlink signal and relaying it on an auxiliary return channel...
August 12, 2017: Sensors
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