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Prato M, Tamarozzi F, Tais S, Rizzi E, Mazzi C, Buonfrate D. Evaluation of the SsIR/NIE recombinant antigen ELISA for the follow up of patients infected by Strongyloides stercoralis: a diagnostic study. Parasitology 2024; 151:295-299. [PMID: 38185819 PMCID: PMC11007275 DOI: 10.1017/s0031182024000027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/06/2023] [Accepted: 12/19/2023] [Indexed: 01/09/2024]
Abstract
Some serology assays demonstrated useful for post-treatment monitoring of Strongyloides stercoralis infection. Serology frequently has low specificity, which might be improved by the use of recombinant antigens. The Strongy Detect ELISA is based on 2 recombinant antigens (SsIR and NIE) and proved good accuracy. Aim of this study was to evaluate the performance of this test for the post-treatment monitoring of strongyloidiasis. We tested 38 paired sera, with matched fecal tests results, stored in our biobank and originating from a randomized controlled trial. At baseline, all patients tested positive for at least 1 fecal assay among PCR, direct stool microscopy and agar plate culture. Patients were re-tested with both serology and fecal assays 12 months after treatment. Primary outcome was the relative reduction in optical density (OD) between baseline and follow up. We observed that about 95% samples showed a reduction between pre and post-treatment OD, with a median relative reduction of 93.9% (IQR 77.3%–98.1%). In conclusion, the test proved reliable for post-treatment monitoring. However, some technical issues, including that the threshold for positivity has not be predefined, and that a substantial number of samples showed overflow signals, need to be fixed to permit use in routine practice.
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Affiliation(s)
- Marco Prato
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Negrar di Valpolicella, Italy
| | - Francesca Tamarozzi
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Negrar di Valpolicella, Italy
| | - Stefano Tais
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Negrar di Valpolicella, Italy
| | - Eleonora Rizzi
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Negrar di Valpolicella, Italy
| | - Cristina Mazzi
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Negrar di Valpolicella, Italy
| | - Dora Buonfrate
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Negrar di Valpolicella, Italy
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2
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Comelli A, Genovese C, Gobbi F, Brindicci G, Capone S, Corpolongo A, Crosato V, Mangano VD, Marrone R, Merelli M, Prato M, Santoro CR, Scarso S, Vanino E, Marchese V, Antinori S, Mastroianni C, Raglio A, Bruschi F, Minervini A, Donà D, Garazzino S, Galli L, Lo Vecchio A, Galli A, Dragoni G, Cricelli C, Colacurci N, Ferrazzi E, Pieralli A, Montresor A, Richter J, Calleri G, Bartoloni A, Zammarchi L. Schistosomiasis in non-endemic areas: Italian consensus recommendations for screening, diagnosis and management by the Italian Society of Tropical Medicine and Global Health (SIMET), endorsed by the Committee for the Study of Parasitology of the Italian Association of Clinical Microbiologists (CoSP-AMCLI), the Italian Society of Parasitology (SoIPa), the Italian Society of Gastroenterology and Digestive Endoscopy (SIGE), the Italian Society of Gynaecology and Obstetrics (SIGO), the Italian Society of Colposcopy and Cervico-Vaginal Pathology (SICPCV), the Italian Society of General Medicine and Primary Care (SIMG), the Italian Society of Infectious and Tropical Diseases (SIMIT), the Italian Society of Pediatrics (SIP), the Italian Society of Paediatric Infectious Diseases (SITIP), the Italian Society of Urology (SIU). Infection 2023; 51:1249-1271. [PMID: 37420083 PMCID: PMC10545632 DOI: 10.1007/s15010-023-02050-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 05/08/2023] [Indexed: 07/09/2023]
Affiliation(s)
- Agnese Comelli
- Infectious Diseases Unit, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Camilla Genovese
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
- II Division of Infectious Diseases, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, Milan, Italy
| | - Federico Gobbi
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar, Italy
- University of Brescia, Brescia, Italy
| | - Gaetano Brindicci
- AOU Consorziale Policlinico di Bari, Infectious Diseases Unit, Bari, Italy
| | - Susanna Capone
- Department of Infectious and Tropical Diseases, University of Brescia and ASST Spedali Civili of Brescia, Brescia, Italy
| | - Angela Corpolongo
- National Institute for Infectious Diseases 'Lazzaro Spallanzani' (IRCCS), Rome, Italy
| | - Verena Crosato
- Department of Infectious and Tropical Diseases, University of Brescia and ASST Spedali Civili of Brescia, Brescia, Italy
| | - Valentina Dianora Mangano
- Department of Translational Research, N.T.M.S, Università di Pisa, Pisa, Italy
- Programma Di Monitoraggio Delle Parassitosi e f.a.d, AOU Pisana, Pisa, Italy
| | - Rosalia Marrone
- National Institute for Health, Migration and Poverty, Rome, Italy
| | - Maria Merelli
- Azienda Sanitaria Universitaria del Friuli Centrale, Udine, Italy
| | - Marco Prato
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar, Italy
| | | | - Salvatore Scarso
- National Center for Global Health, Istituto Superiore di Sanità, Rome, Italy
| | - Elisa Vanino
- Unit of Infectious Diseases, Ospedale "Santa Maria delle Croci", AUSL Romagna, Ravenna, Italy
| | - Valentina Marchese
- Department of Infectious and Tropical Diseases, University of Brescia and ASST Spedali Civili of Brescia, Brescia, Italy
- Department of Infectious Diseases Epidemiology, Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, Germany
| | - Spinello Antinori
- Department of Biomedical and Clinical Sciences, University of Milan, Milan, Italy
- III Division of Infectious Diseases, ASST Fatebenefratelli Sacco, Luigi Sacco Hospital, Milan, Italy
| | - Claudio Mastroianni
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Annibale Raglio
- Committee for the Study of Parasitology of the Italian Association of Clinical Microbiologists (CoSP-AMCLI), Milan, Italy
| | - Fabrizio Bruschi
- Department of Translational Research, N.T.M.S, Università di Pisa, Pisa, Italy
- Programma Di Monitoraggio Delle Parassitosi e f.a.d, AOU Pisana, Pisa, Italy
| | - Andrea Minervini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
- Department of Urology, University of Florence, Florence, Italy
| | - Daniele Donà
- Division of Paediatric Infectious Diseases, Department for Women's and Children's Health, University of Padua, Padua, Italy
| | - Silvia Garazzino
- Paediatric Infectious Disease Unit, Regina Margherita Children's Hospital, A.O.U. Città della Salute e della Scienza di Torino, Turin, Italy
| | - Luisa Galli
- Infectious Diseases Unit, Meyer Children's Hospital, IRCCS, Florence, Italy
- Department of Health Sciences, University of Florence, Florence, Italy
| | - Andrea Lo Vecchio
- Department of Translational Medical Sciences, Paediatric Infectious Disease Unit, University of Naples Federico II, Naples, Italy
| | - Andrea Galli
- Gastroenterology Research Unit, Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Gabriele Dragoni
- Gastroenterology Research Unit, Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Claudio Cricelli
- Health Search-Istituto di Ricerca della SIMG (Italian Society of General Medicine and Primary Care), Florence, Italy
| | - Nicola Colacurci
- Department of Woman, Child and General and Specialized Surgery, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - Enrico Ferrazzi
- Department of Woman, New-Born and Child, Fondazione Istituto di Ricovero e Cura a Carattere Scientifico Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Annalisa Pieralli
- Ginecologia Chirurgica Oncologica, Careggi University and Hospital, Florence, Italy
| | - Antonio Montresor
- Department of Control of Neglected Tropical Diseases, World Health Organization, Geneva, Switzerland
| | - Joachim Richter
- Institute of International Health, Charité Universitätsmedizin, Corporate Member of Freie und Humboldt Universität Berlin and Berlin Institute of Health, Berlin, Germany
| | - Guido Calleri
- Amedeo Di Savoia Hospital, ASL Città di Torino, Turin, Italy
| | - Alessandro Bartoloni
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
- Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy
| | - Lorenzo Zammarchi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy.
- Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy.
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Ursini T, Scarso S, Mugassa S, Othman JB, Yussuph AJ, Ndaboine E, Mbwanji G, Mazzi C, Leonardi M, Prato M, Pomari E, Mazigo HD, Tamarozzi F. Assessing the prevalence of Female Genital Schistosomiasis and comparing the acceptability and performance of health worker-collected and self-collected cervical-vaginal swabs using PCR testing among women in North-Western Tanzania: The ShWAB study. PLoS Negl Trop Dis 2023; 17:e0011465. [PMID: 37410782 DOI: 10.1371/journal.pntd.0011465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 06/15/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND Female Genital Schistosomiasis (FGS) is a neglected disease of the genital tract due to the inflammatory response to the presence of Schistosoma haematobium eggs in the genital tract. The WHO has prioritized the improvement of diagnostics for FGS and previous studies have explored the PCR-based detection of Schistosoma DNA on genital specimens, with encouraging results. This study aimed to determine the prevalence of FGS among women living in an endemic district in North-western Tanzania, using PCR on samples collected though cervical-vaginal swabs, and to compare the performance of self-collected and healthcare worker-collected (operator-collected) samples, and the acceptability of the different sampling methods. METHODS/PRINCIPAL FINDINGS A cross-sectional study was conducted involving 211 women living in 2 villages in the Maswa district of North-western Tanzania. Urine, self-collected and operator-collected cervical-vaginal swabs were obtained from participants. A questionnaire was administered, focusing on the comfortability in undergoing different diagnostic procedures. Prevalence of urinary schistosomiasis, as assessed by eggs in urine, was 8.5% (95%CI 5.1-13.1). DNA was pre-isolated from genital swabs and transported at room temperature to Italy for molecular analysis. Prevalence of active schistosomiasis, urinary schistosomiasis, and FGS were 10.0% (95% CI 6.3-14.8), 8.5% (95%CI 5.1-13.1), and 4.7% (95%CI 2.3-8.5), respectively. When real-time PCR was performed after a pre-amplification step, the prevalence of active schistosomiasis increased to 10.4% (95%CI 6.7-15.4), and FGS to 5.2% (95%CI 2.6-9.1). Of note, more cases were detected by self-collected than operator-collected swabs. The vast majority of participants (95.3%) declared that they were comfortable/very comfortable about genital self-sampling, which was indicated as the preferred sampling method by 40.3% of participants. CONCLUSIONS/SIGNIFICANCE The results of this study show that genital self-sampling followed by pre-amplified PCR on room temperature-stored DNA is a useful method from both technical and acceptability point of views. This encourages further studies to optimize samples processing, and identify the best operational flow to allow integration of FGS screening into women health programmes, such as HPV screening.
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Affiliation(s)
- Tamara Ursini
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Salvatore Scarso
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Stella Mugassa
- School of Public Health, Department of Epidemiology and Behavioural Sciences, Catholic University of Health and Allied Sciences, Mwanza, Tanzania
| | - Jeffer Bhuko Othman
- Department of Medical Parasitology, Catholic University of Health and Allied Sciences, Mwanza, Tanzania
| | | | - Edgar Ndaboine
- Department of Obstetrics and Gynaecology, Bugando Medical Centre, Mwanza, Tanzania
| | - Gladys Mbwanji
- Department of Medical Parasitology, Catholic University of Health and Allied Sciences, Mwanza, Tanzania
| | - Cristina Mazzi
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Martina Leonardi
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Marco Prato
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Elena Pomari
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | | | - Francesca Tamarozzi
- Department of Infectious-Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
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4
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Pena B, Knight W, Cavasin M, Ferrari I, Abdel-Hafiz M, Vagnozzi R, Bosi S, Park D, Shandas R, Song K, McKinsey T, Sbaizero O, Taylor M, Prato M, Mestroni L. Injectable carbon nanotube-functionalized hydrogel as a tool for cardiac tissue engineering. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.3016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background/Introduction
Heart failure (HF) is an expensive major public health problem in the United States and around the world (1). The current treatments for HF are aimed at reducing symptoms, slowing disease progression, and reducing mortality and not aimed at repairing heart muscle or restoring function. Furthermore, even with these treatments, approximately half of patients with HF will die within 5 years of diagnosis (2). Cardiac transplantation remains the only definitive treatment for those affected with end-stage HF, but availability of donor hearts remains a major limitation (3).
Purpose
The ability of the adult heart to regenerate cardiomyocytes (CMs) lost after injury is limited, generating interest in developing tissue engineering therapies to avoid progression towards HF. Rigid carbon nanotubes (CNTs) scaffolds have been used to improve CMs viability, proliferation, and maturation (4), but require undesirable invasive surgeries for implantation. To overcome this limitation, we engineered an injectable reverse thermal gel (RTG) functionalized with CNTs (RTG-CNT) that transitions from a liquid-solution to a gel-based matrix shortly after reaching body temperature allowing for a liquid-based delivery rapidly followed by a stable-gel localization (5).
Methods and results
Here we show experimental evidences the RTG-CNT hydrogel, used as a three-dimensional (3D) niche to culture human induced pluripotent stem cells (hiPSC)-CMs, promotes hiPSC-CMs alignment and elongation with increased Cx43 localization and improved contraction function when compared with traditional two-dimensional (2D) fibronectin controls and plain 3D RTG system without CNTs. Moreover, the short-term (4-week) biocompatibility of the RTG-CNT hydrogel was also assessed in a mouse model (intracardial injection). The results confirmed that the RTG-CNT hydrogel is well tolerated by the cardiac tissue.
Conclusion
Our results indicated that the injectable RTG-CNT hydrogel has the potential to be used as a minimally invasive tool for cardiac tissue engineering efforts.
Funding Acknowledgement
Type of funding sources: Other. Main funding source(s): NATIONAL HEART, LUNG, AND BLOOD (NHLBI) INSTITUTE
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Affiliation(s)
- B Pena
- University of Colorado , Aurora , United States of America
| | - W Knight
- University of Colorado , Aurora , United States of America
| | - M Cavasin
- University of Colorado , Aurora , United States of America
| | - I Ferrari
- University of Colorado , Aurora , United States of America
| | - M Abdel-Hafiz
- University of Colorado , Aurora , United States of America
| | - R Vagnozzi
- University of Colorado , Aurora , United States of America
| | - S Bosi
- University of Trieste, Chemical and Pharmaceutical Sciences , Trieste , Italy
| | - D Park
- University of Colorado , Aurora , United States of America
| | - R Shandas
- University of Colorado , Aurora , United States of America
| | - K Song
- University of Colorado , Aurora , United States of America
| | - T McKinsey
- University of Colorado , Aurora , United States of America
| | - O Sbaizero
- University of Trieste, Engineering and Architecture , Trieste , Italy
| | - M Taylor
- University of Colorado , Aurora , United States of America
| | - M Prato
- University of Trieste, Chemical and Pharmaceutical Sciences , Trieste , Italy
| | - L Mestroni
- University of Colorado , Aurora , United States of America
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5
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Caorsi G, Carniel FC, Flahaut E, Vázquez E, Prato M, Tretiach M. P21-28 Applicability of OECD test guideline 201 to graphene-related materials (GRMs): new insights into GRMs dispersions stability and possible modifications of the standard protocol. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Longoni SS, Beltrame A, Prato M, Spencer JS, Bergamaschi N, Clapasson A, Parodi A, Piubelli C, Perandin F. ELISA Test Based on the Phenolic Glycolipid-I (PGL-I) of Mycobacterium leprae: A Reality of a Laboratory from a Non-Endemic Country. Pathogens 2022; 11:pathogens11080894. [PMID: 36015014 PMCID: PMC9415083 DOI: 10.3390/pathogens11080894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Leprosy is a neglected tropical disease caused by Mycobacterium leprae, leading to disabilities if untreated. The ELISA based on phenolic glycolipid I (PGL-I), or its synthetic version ND-O-BSA, is almost universally positive in multibacillary leprosy and thus extensively used in endemic countries. Household contacts with a positive antibody titer have ~6-fold higher probability to develop the disease than those with a negative titer. Thus, the aim of the study was to evaluate the performance of this ELISA in the setting of a non-endemic country. Methods: We calculate the cut-off using optimized O.D. thresholds, generated by receiver operating characteristics (ROC) curve analysis, testing 39 well-characterized sera obtained from lepromatous leprosy patients with strongly positive ND-O-BSAELISA titer and 39 sera from healthy non-endemic patients never exposed to M. leprae or M. tuberculosis. Indeed, we tested a second set of sera from suspected or confirmed leprosy or household contacts (SLALT group, n=50), and patients with tuberculosis (control group, n=40). Results: We detected 56.4% of SLALT and 22.5% of tuberculosis as positive, consistent with the literature. Conclusion: The ELISA based on ND-O-BSA may thus be considered a good option to be used in a non-endemic area as a screening tool in at risk population usually coming to our center.
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Affiliation(s)
- Silvia Stefania Longoni
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy
- Correspondence:
| | - Anna Beltrame
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy
| | - Marco Prato
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy
| | - John Stewart Spencer
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA
| | - Nicolo Bergamaschi
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy
| | - Andrea Clapasson
- Dermatological Clinic, National Reference Center for Hansen’s Disease, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
| | - Aurora Parodi
- Dermatological Clinic, National Reference Center for Hansen’s Disease, IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Health Science (DISSAL), University of Genova, 16132 Genoa, Italy
| | - Chiara Piubelli
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy
| | - Francesca Perandin
- Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy
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7
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Caldrer S, Mazzi C, Bernardi M, Prato M, Ronzoni N, Rodari P, Angheben A, Piubelli C, Tiberti N. Regulatory T Cells as Predictors of Clinical Course in Hospitalised COVID-19 Patients. Front Immunol 2021; 12:789735. [PMID: 34925369 PMCID: PMC8674838 DOI: 10.3389/fimmu.2021.789735] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/15/2021] [Indexed: 12/25/2022] Open
Abstract
Background The host immune response has a prominent role in the progression and outcome of SARS-CoV-2 infection. Lymphopenia has been described as an important feature of SARS-CoV-2 infection and has been associated with severe disease manifestation. Lymphocyte dysregulation and hyper-inflammation have been shown to be associated with a more severe clinical course; however, a T cell subpopulation whose dysfunction correlate with disease progression has yet to be identify. Methods We performed an immuno-phenotypic analysis of T cell sub-populations in peripheral blood from patients affected by different severity of COVID-19 (n=60) and undergoing a different clinical evolution. Clinical severity was established based on a modified WHO score considering both ventilation support and respiratory capacity (PaO2/FiO2 ratio). The ability of circulating cells at baseline to predict the probability of clinical aggravation was explored through multivariate regression analyses. Results The immuno-phenotypic analysis performed by multi-colour flow cytometry confirmed that patients suffering from severe COVID-19 harboured significantly reduced circulating T cell subsets, especially for CD4+ T, Th1, and regulatory T cells. Peripheral T cells also correlated with parameters associated with disease severity, i.e., PaO2/FiO2 ratio and inflammation markers. CD4+ T cell subsets showed an important significant association with clinical evolution, with patients presenting markedly decreased regulatory T cells at baseline having a significantly higher risk of aggravation. Importantly, the combination of gender and regulatory T cells allowed distinguishing between improved and worsened patients with an area under the ROC curve (AUC) of 82%. Conclusions The present study demonstrates the association between CD4+ T cell dysregulation and COVID-19 severity and progression. Our results support the importance of analysing baseline regulatory T cell levels, since they were revealed able to predict the clinical worsening during hospitalization. Regulatory T cells assessment soon after hospital admission could thus allow a better clinical stratification and patient management.
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Affiliation(s)
- Sara Caldrer
- Department of Infectious - Tropical Diseases and Microbiology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Sacro Cuore - Don Calabria Hospital, Verona, Italy
| | - Cristina Mazzi
- Centre for Clinical Research, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Sacro Cuore - Don Calabria Hospital, Verona, Italy
| | - Milena Bernardi
- Department of Infectious - Tropical Diseases and Microbiology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Sacro Cuore - Don Calabria Hospital, Verona, Italy
| | - Marco Prato
- Department of Infectious - Tropical Diseases and Microbiology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Sacro Cuore - Don Calabria Hospital, Verona, Italy
| | - Niccolò Ronzoni
- Department of Infectious - Tropical Diseases and Microbiology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Sacro Cuore - Don Calabria Hospital, Verona, Italy
| | - Paola Rodari
- Department of Infectious - Tropical Diseases and Microbiology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Sacro Cuore - Don Calabria Hospital, Verona, Italy
| | - Andrea Angheben
- Department of Infectious - Tropical Diseases and Microbiology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Sacro Cuore - Don Calabria Hospital, Verona, Italy
| | - Chiara Piubelli
- Department of Infectious - Tropical Diseases and Microbiology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Sacro Cuore - Don Calabria Hospital, Verona, Italy
| | - Natalia Tiberti
- Department of Infectious - Tropical Diseases and Microbiology, Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Sacro Cuore - Don Calabria Hospital, Verona, Italy
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8
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Riccardi N, Storato S, Massella A, Ragusa A, Prato M, Orza P, Campedelli I, Fracchetti F, Piubelli C, Angheben A. Isolation and Sequencing of the First Case of Symptomatic MDR Salmonella enterica Subsp. Enterica ST40 in Human in Italy, July 2020. Microb Drug Resist 2021; 28:378-381. [PMID: 34918957 DOI: 10.1089/mdr.2021.0249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Strains of drug-resistant nontyphoidal Salmonella spp. are emerging in livestock worldwide. We describe the first case of symptomatic multidrug-resistant (MDR) Salmonella enterica subsp. enterica in human and the genetic mechanisms at the basis of its antibiotic resistance. To control outbreaks, rapid identification and sequencing are necessary. Proactive research and notification are needed to evaluate the routes of transmission from livestock to humans and risk-management strategies of MDR Salmonella strains.
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Affiliation(s)
- Niccolò Riccardi
- Department of Infectious, Tropical Diseases and Microbiology (DITM), IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy.,Infectious Diseases Unit, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
| | - Silvia Storato
- Department of Gastroenterology and Endoscopy, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Arianna Massella
- Department of Gastroenterology and Endoscopy, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Andrea Ragusa
- Department of Infectious, Tropical Diseases and Microbiology (DITM), IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Marco Prato
- Department of Infectious, Tropical Diseases and Microbiology (DITM), IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Pierantonio Orza
- Department of Infectious, Tropical Diseases and Microbiology (DITM), IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | | | | | - Chiara Piubelli
- Department of Infectious, Tropical Diseases and Microbiology (DITM), IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Andrea Angheben
- Department of Infectious, Tropical Diseases and Microbiology (DITM), IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
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Buonfrate D, Piubelli C, Gobbi F, Martini D, Bertoli G, Ursini T, Moro L, Ronzoni N, Angheben A, Rodari P, Cardellino C, Tamarozzi F, Tais S, Rizzi E, Degani M, Deiana M, Prato M, Silva R, Bisoffi Z. Antibody response induced by the BNT162b2 mRNA COVID-19 vaccine in a cohort of health-care workers, with or without prior SARS-CoV-2 infection: a prospective study. Clin Microbiol Infect 2021; 27:1845-1850. [PMID: 34329793 PMCID: PMC8316640 DOI: 10.1016/j.cmi.2021.07.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/05/2021] [Accepted: 07/18/2021] [Indexed: 11/19/2022]
Abstract
Objectives To assess the antibody response to BNT162b2 mRNA COVID-19 vaccine in a cohort of health-care workers (HCW), comparing individuals with previous severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and SARS-CoV-2-naive individuals. Methods HCW were tested at T0 (day of first dose), T1 (day of second dose) and T2 (2–3 weeks after second dose) for IgG anti-nucleocapsid protein, IgM anti-spike protein and IgG anti-receptor binding domain (IgG-RBD-S). The antibody response was compared between four main groups: group A, individuals with previous infection and positive antibodies at baseline; group B, individuals with the same history but negative antibodies; group C, individuals with no infection history but positive antibodies; group D, naive individuals. Repeated measures analysis was used to compare results over time-points. Results A total of 1935 HCW were included. Median IgG-RBD-S titre was significantly higher for group A (232 individuals) than for group B (56 individuals) both at T1 (A: 22 763 AU/mL, interquartile range (IQR) 14 222–37 204 AU/mL; B: 1373 AU/mL, IQR 783–3078 AU/mL, p 0.0003) and T2 (A: 30 765 AU/mL, IQR 19 841–42 813 AU/mL; B: 13 171 AU/mL, IQR 2324–22 688 AU/mL, p 0.0038) and for group D (1563 individuals; 796 AU/mL, IQR 379–1510 AU/mL at T1; 15 494 AU/mL, IQR 9122–23 916 AU/mL at T2, p < 0.0001 for both time-points). T1 values of group A were also significantly higher than T2 values of group D (p < 0.0001). Presence of symptoms, younger age and being female were associated with stronger antibody response. HCW infected in March showed a significantly stronger response (T1: 35 324 AU/mL, IQR 22 003–44 531 AU/mL; T2: 37 648 AU/mL, IQR 27 088–50 451 AU/mL) than those infected in November (T1: 18 499 AU/mL, IQR 11 492–27 283 AU/mL; T2: 23 210 AU/mL, IQR 18 074–36 086 AU/mL, p < 0.0001 for both time-points. Conclusions Individuals with past SARS-CoV-2 infection had a strong antibody response after one single vaccine shot. A single dose might be sufficient for this group, regardless of the time elapsed since infection; however, the clinical correlation with antibody response needs to be studied.
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Affiliation(s)
- Dora Buonfrate
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy.
| | - Chiara Piubelli
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Federico Gobbi
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Davide Martini
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Giulia Bertoli
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Tamara Ursini
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Lucia Moro
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Niccolò Ronzoni
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Andrea Angheben
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Paola Rodari
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Chiara Cardellino
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Francesca Tamarozzi
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Stefano Tais
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Eleonora Rizzi
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Monica Degani
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Michela Deiana
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Marco Prato
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Ronaldo Silva
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy
| | - Zeno Bisoffi
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Negrar di Valpolicella, Verona, Italy; Department of Diagnostics and Public Health, University of Verona, Verona, Italy
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Tamarozzi F, Longoni SS, Vola A, Degani M, Tais S, Rizzi E, Prato M, Scarso S, Silva R, Brunetti E, Bisoffi Z, Perandin F. Evaluation of Nine Commercial Serological Tests for the Diagnosis of Human Hepatic Cyst Echinococcosis and the Differential Diagnosis with Other Focal Liver Lesions: A Diagnostic Accuracy Study. Diagnostics (Basel) 2021; 11:diagnostics11020167. [PMID: 33503986 PMCID: PMC7911993 DOI: 10.3390/diagnostics11020167] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 01/19/2021] [Accepted: 01/21/2021] [Indexed: 12/19/2022] Open
Abstract
The differential diagnosis of hepatic cystic echinococcosis (CE) may be challenging. When imaging is insufficient, serology can be applied, but no consensus diagnostic algorithm exists. We evaluated the performances of nine serological tests commercialized in Europe for the diagnosis of “echinococcosis”. We performed a diagnostic accuracy study using a panel of sera from patients with hepatic CE (n = 45 “liquid” content stages, n = 25 “solid” content stages) and non-CE focal liver lesions (n = 54 with “liquid” content, n = 11 with “solid” content). The diagnosis and staging of CE were based on ultrasound (gold standard). Nine commercial seroassays (5 ELISA, 2 WB, 1 Chemiluminescence Immunoassay [CLIA] and 1 Immunochromatographic test [ICT]) were the index tests. Sensitivity (Se) ranged from 43 to 94% and from 31 to 87%, and specificity (Sp) from 68 to 100% and from 94 to 100%, when borderline results were considered positive or negative, respectively. Three seroassays (2 ELISA, 1 WB) were excluded from further analyses due to poor performances. When tests were combined, Sp was 98–100%. The best results were obtained using the WB-LDBIO alone (Se 83%) or as a third test after two non-WB tests (Se 67–86%). A validated WB or two non-WB tests, read with stringent criteria (borderline = negative and considered positive only if concordant positive), possibly confirmed by the WB, appear sensible approaches.
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Affiliation(s)
- Francesca Tamarozzi
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy; (S.S.L.); (M.D.); (S.T.); (E.R.); (M.P.); (S.S.); (R.S.); (Z.B.); (F.P.)
- Correspondence: ; Tel.: +39-0456013226
| | - Silvia Stefania Longoni
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy; (S.S.L.); (M.D.); (S.T.); (E.R.); (M.P.); (S.S.); (R.S.); (Z.B.); (F.P.)
| | - Ambra Vola
- Department of Medical Sciences and Infectious Diseases, IRCCS San Matteo Hospital Foundation, 27100 Pavia, Italy; (A.V.); (E.B.)
| | - Monica Degani
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy; (S.S.L.); (M.D.); (S.T.); (E.R.); (M.P.); (S.S.); (R.S.); (Z.B.); (F.P.)
| | - Stefano Tais
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy; (S.S.L.); (M.D.); (S.T.); (E.R.); (M.P.); (S.S.); (R.S.); (Z.B.); (F.P.)
| | - Eleonora Rizzi
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy; (S.S.L.); (M.D.); (S.T.); (E.R.); (M.P.); (S.S.); (R.S.); (Z.B.); (F.P.)
| | - Marco Prato
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy; (S.S.L.); (M.D.); (S.T.); (E.R.); (M.P.); (S.S.); (R.S.); (Z.B.); (F.P.)
| | - Salvatore Scarso
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy; (S.S.L.); (M.D.); (S.T.); (E.R.); (M.P.); (S.S.); (R.S.); (Z.B.); (F.P.)
| | - Ronaldo Silva
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy; (S.S.L.); (M.D.); (S.T.); (E.R.); (M.P.); (S.S.); (R.S.); (Z.B.); (F.P.)
| | - Enrico Brunetti
- Department of Medical Sciences and Infectious Diseases, IRCCS San Matteo Hospital Foundation, 27100 Pavia, Italy; (A.V.); (E.B.)
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Zeno Bisoffi
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy; (S.S.L.); (M.D.); (S.T.); (E.R.); (M.P.); (S.S.); (R.S.); (Z.B.); (F.P.)
- Department of Diagnostics and Public Health, University of Verona, 37129 Verona, Italy
| | - Francesca Perandin
- Department of Infectious Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, 37024 Verona, Italy; (S.S.L.); (M.D.); (S.T.); (E.R.); (M.P.); (S.S.); (R.S.); (Z.B.); (F.P.)
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11
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Mangano VD, Prato M, Marvelli A, Moscato G, Bruschi F. Screening of at-risk blood donors for Chagas disease in non-endemic countries: Lessons from a 2-year experience in Tuscany, Italy. Transfus Med 2020; 31:63-68. [PMID: 33295054 PMCID: PMC7953894 DOI: 10.1111/tme.12741] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/09/2020] [Accepted: 11/12/2020] [Indexed: 01/17/2023]
Abstract
Background Chagas disease (CD) is caused by the protozoan parasite Trypanosoma cruzi and is transmitted by blood‐sucking triatomine insects in endemic areas of Latin America. Transmission can also occur via blood transfusion and is a major cause of CD in non‐endemic areas. Objectives The aim of the study was to assess the prevalence of anti‐T. cruzi antibodies in blood donors at risk of infection in Tuscany, Italy, following the introduction of blood safety Italian legislation. Material and methods Donors (N = 1985) were tested in 2016 to 2018 for anti‐T. cruzi IgG using an immunochromatographic test (ICT). Chemiluminescent immunoassay (CLIA) was performed on ICT‐positive donors to exclude CD, whereas enzyme‐linked immunosorbent assay and western blot were performed in case of discordant results. All assays were performed on CD patients (N = 10) for validation. Results Ten blood donors had a positive ICT result, with a resulting T. cruzi seroprevalence of 0.5% but demonstrated negative results to CLIA, as well as to the other serological assays. The comparison of serological assays suggested a lower relative sensitivity of ICT. Conclusion The results of this study confirm the significance of serological testing in the screening strategy for CD. However, they provide evidence for discontinuing the use of ICT as a screening test and suggest that a sensitive, specific and multi‐sample format assay should be used at the national level for uniformity of results.
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Affiliation(s)
- Valentina D Mangano
- Department of Translational Research, N.T.M.S., Università di Pisa, Pisa, Italy.,Department of Laboratory Medicine, Unit of Microbiology, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
| | - Marco Prato
- Postgraduate School of Microbiology and Virology, Università di Pisa, Pisa, Italy
| | - Antonella Marvelli
- Postgraduate School of Clinical Pathology and Biochemistry, Università di Pisa, Pisa, Italy
| | - Giovanna Moscato
- Department of Laboratory Medicine, Unit of Clinical Chemistry Analyses, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
| | - Fabrizio Bruschi
- Department of Translational Research, N.T.M.S., Università di Pisa, Pisa, Italy.,Department of Laboratory Medicine, Programme of Parasitic Disease monitoring, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
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12
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Mangano VD, Perandin F, Tiberti N, Guerriero M, Migliaccio F, Prato M, Bargagna L, Tais S, Degani M, Verra F, Bisoffi Z, Bruschi F. Risk of transfusion-transmitted malaria: evaluation of commercial ELISA kits for the detection of anti-Plasmodium antibodies in candidate blood donors. Malar J 2019; 18:17. [PMID: 30670018 PMCID: PMC6341736 DOI: 10.1186/s12936-019-2650-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 01/14/2019] [Indexed: 11/10/2022] Open
Abstract
Background Transfusion with Plasmodium-infected blood represents a risk for malaria transmission, a rare but severe event. Several non-endemic countries implement a strategy for the screening of candidate blood donors including questionnaire for the identification of at-risk subjects and laboratory testing of blood samples, often serology-based, with temporary deferral from donation for individuals with a positive result. In Italy, the most recent legislation, issued in November 2015, introduced the use of serological tests for the detection of anti-Plasmodium antibodies. Methods In the absence of a gold standard for malaria serology, the aim of this work was to evaluate five commercial ELISA kits, and to determine their accuracy (sensitivity and specificity) in comparison to immuno-fluorescence antibody test (IFAT), and their agreement (concordance of results). Serum samples from malaria patients or from subjects with malaria history (N = 64), malaria naïve patients with other parasitic infections (N = 15), malaria naïve blood donors (N = 8) and malaria exposed candidate blood donors (N = 36) were tested. Results The specificity of all ELISA kits was 100%, while sensitivity ranged between 53 and 64% when compared to IFAT on malaria patients samples. When tested on candidate blood donors’ samples, ELISA kits showed highly variable agreement (42–94%) raising the possibility that the same individual could be included or excluded from donation depending on the test in use by the transfusion centre. Conclusions These preliminary results indicate how the lack of a gold standard for malaria serology must be taken into account in the application and future revision of current legislation. There is need of developing more sensitive serological assays. Moreover, the adoption of a unique serological test at national level is recommended, as well as the development of screening algorithms based on multiple laboratory tests, including molecular assays. Electronic supplementary material The online version of this article (10.1186/s12936-019-2650-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Valentina D Mangano
- Department of Translational Science, University of Pisa, Pisa, Italy.,Department of Laboratory Medicine, Pisa University Hospital, Pisa, Italy
| | - Francesca Perandin
- Centre for Tropical Diseases, IRCCS Sacro Cuore-Don Calabria Hospital, Negrar, Verona, Italy
| | - Natalia Tiberti
- Centre for Tropical Diseases, IRCCS Sacro Cuore-Don Calabria Hospital, Negrar, Verona, Italy
| | | | - Franca Migliaccio
- Department of Laboratory Medicine, Pisa University Hospital, Pisa, Italy
| | - Marco Prato
- Department of Laboratory Medicine, Pisa University Hospital, Pisa, Italy
| | - Lucia Bargagna
- Department of Laboratory Medicine, Pisa University Hospital, Pisa, Italy
| | - Stefano Tais
- Centre for Tropical Diseases, IRCCS Sacro Cuore-Don Calabria Hospital, Negrar, Verona, Italy
| | - Monica Degani
- Centre for Tropical Diseases, IRCCS Sacro Cuore-Don Calabria Hospital, Negrar, Verona, Italy
| | - Federica Verra
- Centre for Tropical Diseases, IRCCS Sacro Cuore-Don Calabria Hospital, Negrar, Verona, Italy
| | - Zeno Bisoffi
- Centre for Tropical Diseases, IRCCS Sacro Cuore-Don Calabria Hospital, Negrar, Verona, Italy. .,Department of Diagnostic and Public Health, University of Verona, Policlinico "G. B. Rossi", Verona, Italy.
| | - Fabrizio Bruschi
- Department of Translational Science, University of Pisa, Pisa, Italy. .,Department of Laboratory Medicine, Pisa University Hospital, Pisa, Italy.
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Marzo T, Cirri D, Pollini S, Prato M, Fallani S, Cassetta MI, Novelli A, Rossolini GM, Messori L. Auranofin and its Analogues Show Potent Antimicrobial Activity against Multidrug-Resistant Pathogens: Structure-Activity Relationships. ChemMedChem 2018; 13:2448-2454. [DOI: 10.1002/cmdc.201800498] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 09/24/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Tiziano Marzo
- Laboratory of Metals in Medicine (MetMed), Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3 50019 Sesto Fiorentino Italy
- Department of Chemistry and Industrial Chemistry (DCCI); University of Pisa; Via Moruzzi 13 56124 Pisa Italy
| | - Damiano Cirri
- Laboratory of Metals in Medicine (MetMed), Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3 50019 Sesto Fiorentino Italy
| | - Simona Pollini
- Department of Experimental and Clinical Medicine (DMSC); University of Florence; Largo Brambilla 3 50134 Firenze Italy
- Microbiology and Virology Unit; Azienda Ospedaliero-Universitaria Careggi (AOUC); Largo Brambilla 3 50134 Firenze Italy
| | - Marco Prato
- Department of Experimental and Clinical Medicine (DMSC); University of Florence; Largo Brambilla 3 50134 Firenze Italy
| | - Stefania Fallani
- Department of Health Sciences (DSS); University of Florence; Viale Pieraccini 6 50139 Florence Italy
| | - Maria Iris Cassetta
- Department of Health Sciences (DSS); University of Florence; Viale Pieraccini 6 50139 Florence Italy
| | - Andrea Novelli
- Department of Health Sciences (DSS); University of Florence; Viale Pieraccini 6 50139 Florence Italy
| | - Gian Maria Rossolini
- Department of Experimental and Clinical Medicine (DMSC); University of Florence; Largo Brambilla 3 50134 Firenze Italy
- Microbiology and Virology Unit; Azienda Ospedaliero-Universitaria Careggi (AOUC); Largo Brambilla 3 50134 Firenze Italy
| | - Luigi Messori
- Laboratory of Metals in Medicine (MetMed), Department of Chemistry “U. Schiff”; University of Florence; Via della Lastruccia 3 50019 Sesto Fiorentino Italy
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Sulleiro MV, Quiroga S, Peña D, Pérez D, Guitián E, Criado A, Prato M. Microwave-induced covalent functionalization of few-layer graphene with arynes under solvent-free conditions. Chem Commun (Camb) 2018; 54:2086-2089. [PMID: 29334096 DOI: 10.1039/c7cc08676h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A non-conventional modification of exfoliated few-layer graphene (FLG) with different arynes under microwave (MW) irradiation and solvent-free conditions is reported. The described approach allows reaching fast, efficient and mild covalent functionalization of FLG.
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Affiliation(s)
- M V Sulleiro
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Piazzale Europa, 1, 34127 Trieste, Italy.
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15
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Dirian K, Bauroth S, Roth A, Syrgiannis Z, Rigodanza F, Burian M, Amenitsch H, Sharapa DI, Prato M, Clark T, Guldi DM. A water-soluble, bay-functionalized perylenediimide derivative - correlating aggregation and excited state dynamics. Nanoscale 2018; 10:2317-2326. [PMID: 29327015 DOI: 10.1039/c7nr07870f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The aggregation and the photophysics of a water soluble perylenediimide (PDI) derivative that features two bromine substituents in the bay positions has been probed. Non-fluorescent aggregates were found to be present at concentrations of 1.0 × 10-5 M. In situ small-angle X-ray scattering (SAXS) measurements and complementary molecular modeling showed the presence of PDI aggregates. In their singlet excited states, the PDI aggregates are characterized by distinct transient fingerprints and rapid deactivation, as revealed by pump-probe experiments on the femto-, pico-, nano-, and microsecond timescales. The product of this deactivation is a PDI triplet excited state. The efficiency of the triplet formation depends on the concentration, and hence on the degree of aggregation. Notably, for PDI concentrations in the range of the critical micelle concentration, the efficiency of intersystem crossing is close to zero. In short, we have demonstrated, for the first time, aggregation-induced formation of triplet excited states for PDI derivatives.
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Affiliation(s)
- K Dirian
- Department of Chemistry and Pharmacy & Interdisciplinary Center for Molecular Materials, Friedrich-Alexander-University Erlangen-Nuernberg, 91058 Erlangen, Germany.
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Lenarda A, Bellini M, Marchionni A, Miller H, Montini T, Melchionna M, Vizza F, Prato M, Fornasiero P. Nanostructured carbon supported Pd-ceria as anode catalysts for anion exchange membrane fuel cells fed with polyalcohols. Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.05.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Lessire M, Gallo V, Prato M, Akide-Ndunge O, Mandili G, Marget P, Arese P, Duc G. Effects of faba beans with different concentrations of vicine and convicine on egg production, egg quality and red blood cells in laying hens. Animal 2017; 11:1270-1278. [PMID: 28031067 PMCID: PMC5523731 DOI: 10.1017/s1751731116002688] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 11/14/2016] [Indexed: 11/09/2022] Open
Abstract
The faba bean (Vicia faba L.) is a potential source of proteins for poultry, mainly for laying hens whose protein requirements are lower than those of other birds such as growing broilers and turkeys. However, this feedstuff contains anti-nutritional factors, that is, vicine (V) and convicine (C) that are already known to reduce laying hen performance. The aim of the experiment reported here was to evaluate the effects of a wide range of dietary V and C concentrations in laying hens. Two trials were performed with laying hens fed diets including 20% or 25% of faba bean genotypes highly contrasting in V+C content. In Trial 1, faba beans from two tannin-containing cultivars, but with high or low V+C content were dehulled in order to eliminate the tannin effect. In addition to the contrasting levels of V+C in the two cultivars, two intermediate levels of V+C were obtained by mixing the two cultivars (70/30 and 30/70). In Trial 2, two isogenic zero-tannin faba bean genotypes with high or low V+C content were used. In both trials, a classical corn-soybean diet was also offered to control hens. Each experimental diet was given to 48 laying hens for 140 (Trial 1) or 89 (Trial 2) days. Laying performance and egg quality were measured. The redox sensitivity of red blood cells (RBCs) was assessed by measuring hemolysis and reduced glutathione (GSH) concentration in these cells. Egg weight was significantly reduced by the diets containing the highest concentrations of V+C (P<0.0001) in Trial 1 and slightly reduced (P<0.10) in Trial 2, but only weak linear relationships between egg weight and dietary V+C concentration were established. No negative effect of V+C level was observed for egg quality parameters. In contrast, certain parameters (i.e. Haugh units, yolk color) were improved by feeding low V+C diets (P<0.05). Hemolysis of RBCs was higher in hens fed high V+C diets. A decrease in GSH concentration in RBCs of hens fed the highest levels of V+C was observed. Faba bean genotypes with low concentrations of V+C can therefore be used in laying hen diets up to 25% without any detrimental effects on performance levels or egg characteristics, without any risk of hemolysis of RBCs.
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Affiliation(s)
- M. Lessire
- Institut National de la Recherche Agronomique (INRA), UR83 Recherches Avicoles, 37380 Nouzilly, France
| | - V. Gallo
- Department of Oncology, University of Torino, Via Santena 5 bis, 10126 Torino, Italy
| | - M. Prato
- Department of Oncology, University of Torino, Via Santena 5 bis, 10126 Torino, Italy
| | - O. Akide-Ndunge
- Department of Oncology, University of Torino, Via Santena 5 bis, 10126 Torino, Italy
| | - G. Mandili
- Department of Oncology, University of Torino, Via Santena 5 bis, 10126 Torino, Italy
| | - P. Marget
- INRA, UMR1347 Agroécologie, BP 86510, 21000 Dijon, France
| | - P. Arese
- Department of Oncology, University of Torino, Via Santena 5 bis, 10126 Torino, Italy
| | - G. Duc
- INRA, UMR1347 Agroécologie, BP 86510, 21000 Dijon, France
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18
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Juzgado A, Soldà A, Ostric A, Criado A, Valenti G, Rapino S, Conti G, Fracasso G, Paolucci F, Prato M. Highly sensitive electrochemiluminescence detection of a prostate cancer biomarker. J Mater Chem B 2017; 5:6681-6687. [PMID: 32264431 DOI: 10.1039/c7tb01557g] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Prostate-specific membrane antigen (PSMA), a glycoprotein expressed in the prostatic epithelium endowed with enzymatic activity, is a very promising diagnostic marker for the early detection of prostate cancer. In this study, we report a novel electrochemiluminescence ELISA-like immunosensor based on carbon nanotubes and a highly specific sandwich immunoassay for the PSMA detection. To fabricate the device, an optically transparent electrode was modified with doubly functionalized multi-walled carbon nanotubes carrying amine groups and a monoclonal anti-PSMA antibody. Subsequently, to complete the sandwich immunosensing device, a second specific monoclonal anti-PSMA antibody was labelled with a electrochemiluminescent probe. Under optimized experimental conditions, the proposed sensing device exhibits a performance exceeding that of the state of-the-art in terms of the limit of detection (LOD) and limit of quantification (LOQ) as good as 0.88 ng mL-1 and 2.60 ng mL-1, respectively, in real complex samples such as cell lysates. In addition, the unique role of carbon nanotubes is also discussed by comparison with an analogue sensor assembled without the nanocarbon-based material.
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Affiliation(s)
- A Juzgado
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Piazzale Europa, 1, 34127 Trieste, Italy.
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19
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Santiago-Gonzalez B, Monguzzi A, Caputo M, Villa C, Prato M, Santambrogio C, Torrente Y, Meinardi F, Brovelli S. Metal Nanoclusters with Synergistically Engineered Optical and Buffering Activity of Intracellular Reactive Oxygen Species by Compositional and Supramolecular Design. Sci Rep 2017; 7:5976. [PMID: 28729689 PMCID: PMC5519591 DOI: 10.1038/s41598-017-05156-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 05/24/2017] [Indexed: 01/31/2023] Open
Abstract
Metal nanoclusters featuring tunable luminescence and high biocompatibility are receiving attention as fluorescent markers for cellular imaging. The recently discovered ability of gold clusters to scavenge cytotoxic reactive oxygen species (ROS) from the intracellular environment extends their applicability to biomedical theranostics and provides a novel platform for realizing multifunctional luminescent probes with engineered anti-cytotoxic activity for applications in bio-diagnostics and conceivably cellular therapy. This goal could be achieved by using clusters of strongly reactive metals such as silver, provided that strategies are found to enhance their luminescence while simultaneously enabling direct interaction between the metal atoms and the chemical surroundings. In this work, we demonstrate a synergic approach for realizing multifunctional metal clusters combining enhanced luminescence with strong and lasting ROS scavenging activity, based on the fabrication and in situ protection of Ag nanoclusters with a supramolecular mantle of thiolated-Au atoms (Ag/Au-t). Confocal imaging and viability measurements highlight the biocompatibility of Ag/Au-t and their suitability as fluorescent bio-markers. ROS concentration tests reveal the remarkable scavenging activity of Ag-based clusters. Proliferation tests of cells in artificially stressed culture conditions point out their prolonged anti-cytotoxic effect with respect to gold systems, ensuring positive cell proliferation rates even for long incubation time.
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Affiliation(s)
- B Santiago-Gonzalez
- Dipartimento di Scienza dei Materiali, Università degli Studi Milano-Bicocca, via R. Cozzi 55, 20125, Milano, Italy.
| | - A Monguzzi
- Dipartimento di Scienza dei Materiali, Università degli Studi Milano-Bicocca, via R. Cozzi 55, 20125, Milano, Italy
| | - M Caputo
- Dipartimento di Scienza dei Materiali, Università degli Studi Milano-Bicocca, via R. Cozzi 55, 20125, Milano, Italy
| | - C Villa
- Dipartimento di Patofisiologia e dei Trapianti, Università degli Studi di Milano, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Centro Dino Ferrari, Via Francesco Sforza 35, 20122, Milano, Italy
| | - M Prato
- Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
| | - C Santambrogio
- Dipartimento di Biotecnologie e Bioscienze, Università degli Studi Milano-Bicocca Piazza della Scienza, 2 20126, Milano, Italy
| | - Y Torrente
- Dipartimento di Patofisiologia e dei Trapianti, Università degli Studi di Milano, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Centro Dino Ferrari, Via Francesco Sforza 35, 20122, Milano, Italy
| | - F Meinardi
- Dipartimento di Scienza dei Materiali, Università degli Studi Milano-Bicocca, via R. Cozzi 55, 20125, Milano, Italy
| | - S Brovelli
- Dipartimento di Scienza dei Materiali, Università degli Studi Milano-Bicocca, via R. Cozzi 55, 20125, Milano, Italy.
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20
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Herreros-López A, Carini M, Da Ros T, Carofiglio T, Marega C, La Parola V, Rapozzi V, Xodo L, Alshatwi AA, Hadad C, Prato M. Nanocrystalline cellulose-fullerene: Novel conjugates. Carbohydr Polym 2017; 164:92-101. [DOI: 10.1016/j.carbpol.2017.01.068] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 01/17/2017] [Accepted: 01/18/2017] [Indexed: 01/23/2023]
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21
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Cellot G, La Monica S, Scaini D, Rauti R, Bosi S, Prato M, Gandolfi S, Ballerini L. Successful Regrowth of Retinal Neurons When Cultured Interfaced to Carbon Nanotube Platforms. J Biomed Nanotechnol 2017. [DOI: 10.1166/jbn.2017.2364] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Bettini S, Giancane G, Pagano R, Bonfrate V, Salvatore L, Madaghiele M, Buccolieri A, Manno D, Serra A, Maruccio G, Monteduro AG, Syrgiannis Z, Valli L, Prato M. A simple approach to synthetize folic acid decorated magnetite@SiO2 nanostructures for hyperthermia applications. J Mater Chem B 2017; 5:7547-7556. [DOI: 10.1039/c7tb02002c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Folic Acid decorated SPIONs selective internalization was monitored by an innovative Ellipsometry imaging approach.
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23
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Prato M, Bonettini S, Loris I, Porta F, Rebegoldi S. On the constrained minimization of smooth Kurdyka—Łojasiewicz functions with the scaled gradient projection method. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/756/1/012001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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León V, González-Domínguez JM, Fierro JLG, Prato M, Vázquez E. Production and stability of mechanochemically exfoliated graphene in water and culture media. Nanoscale 2016; 8:14548-55. [PMID: 27411953 DOI: 10.1039/c6nr03246j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The preparation of graphene suspensions in water, without detergents or any other additives is achieved using freeze-dried graphene powders, produced by mechanochemical exfoliation of graphite. These powders of graphene can be safely stored or shipped, and promptly dissolved in aqueous media. The suspensions are relatively stable in terms of time, with a maximum loss of ∼25% of the initial concentration at 2 h. This work provides an easy and general access to aqueous graphene suspensions of chemically non-modified graphene samples, an otherwise (almost) impossible task to achieve by other means. A detailed study of the stability of the relative dispersions is also reported.
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Affiliation(s)
- V León
- Organic Chemistry area, Faculty of Chemical Science and Technology - IRICA, University of Castilla-La Mancha, Avda. Camilo José Cela 10, 13071,, Ciudad Real, Spain.
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25
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Brunetti J, Falciani C, Roscia G, Pollini S, Bindi S, Scali S, Arrieta UC, Gómez-Vallejo V, Quercini L, Ibba E, Prato M, Rossolini GM, Llop J, Bracci L, Pini A. In vitro and in vivo efficacy, toxicity, bio-distribution and resistance selection of a novel antibacterial drug candidate. Sci Rep 2016; 6:26077. [PMID: 27169671 PMCID: PMC4864329 DOI: 10.1038/srep26077] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 04/25/2016] [Indexed: 11/24/2022] Open
Abstract
A synthetic antimicrobial peptide was identified as a possible candidate for the development of a new antibacterial drug. The peptide, SET-M33L, showed a MIC90 below 1.5 μM and 3 μM for Pseudomonas aeruginosa and Klebsiella pneumoniae, respectively. In in vivo models of P. aeruginosa infections, the peptide and its pegylated form (SET-M33L-PEG) enabled a survival percentage of 60–80% in sepsis and lung infections when injected twice i.v. at 5 mg/Kg, and completely healed skin infections when administered topically. Plasma clearance showed different kinetics for SET-M33L and SET-M33L-PEG, the latter having greater persistence two hours after injection. Bio-distribution in organs did not show significant differences in uptake of the two peptides. Unlike colistin, SET-M33L did not select resistant mutants in bacterial cultures and also proved non genotoxic and to have much lower in vivo toxicity than antimicrobial peptides already used in clinical practice. The characterizations reported here are part of a preclinical development plan that should bring the molecule to clinical trial in the next few years.
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Affiliation(s)
- Jlenia Brunetti
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | | | - Giulia Roscia
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Simona Pollini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Stefano Bindi
- Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Clinical Pathology Laboratory, Azienda Ospedaliera Universitaria Senese, Policlinico Le Scotte, viale Bracci, Siena, Italy
| | - Silvia Scali
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Unai Cossio Arrieta
- Radiochemistry and Nuclear Imaging Group CIC biomaGUNE, San Sebastián, Spain
| | | | - Leila Quercini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Elisa Ibba
- Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Marco Prato
- Department of Experimental and Clinical Medicine, University of Florence, Italy
| | - Gian Maria Rossolini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Department of Experimental and Clinical Medicine, University of Florence, Italy.,Microbiology and Virology Unit, Florence Careggi University Hospital, Florence, Italy.,Don Carlo Gnocchi Foundation I.R.C.C.S., Florence, Italy
| | - Jordi Llop
- Radiochemistry and Nuclear Imaging Group CIC biomaGUNE, San Sebastián, Spain
| | - Luisa Bracci
- Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Clinical Pathology Laboratory, Azienda Ospedaliera Universitaria Senese, Policlinico Le Scotte, viale Bracci, Siena, Italy
| | - Alessandro Pini
- Department of Medical Biotechnologies, University of Siena, Siena, Italy.,Clinical Pathology Laboratory, Azienda Ospedaliera Universitaria Senese, Policlinico Le Scotte, viale Bracci, Siena, Italy
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26
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Zammarchi L, Antonelli A, Lapini M, Prato M, Farese A, Rossolini GM, Bartoloni A. Travelers lowering their guard: a bacterial, viral and protozoan co-infection after a five-day journey in India. J Travel Med 2016; 23:taw044. [PMID: 27378368 DOI: 10.1093/jtm/taw044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 05/31/2016] [Indexed: 11/13/2022]
Abstract
We present a case of concurrent infections by Campylobacter jejuni, Giardia intestinalis and Hepatitis E virus acquired during a 5-days travel to India by an Italian traveller : Professionals responsible for pre- and post-travel care should underline food and water precautions and prescribe an adequate diagnostic work-up in symptomatic patients.
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Affiliation(s)
- Lorenzo Zammarchi
- Dipartimento Di Medicina Sperimentale E Clinica, Università Di Firenze, Florence, Italy.,SOD Malattie Infettive E Tropicali, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | - Alberto Antonelli
- Dipartimento Di Medicina Sperimentale E Clinica, Università Di Firenze, Florence, Italy
| | - Manuela Lapini
- SOD Microbiologia E Virologia, Azienda Ospedaliera Universitaria Careggi, Florence, Italy
| | - Marco Prato
- Dipartimento Di Medicina Sperimentale E Clinica, Università Di Firenze, Florence, Italy
| | - Alberto Farese
- SOD Malattie Infettive E Tropicali, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
| | - Gian Maria Rossolini
- Dipartimento Di Medicina Sperimentale E Clinica, Università Di Firenze, Florence, Italy.,SOD Microbiologia E Virologia, Azienda Ospedaliera Universitaria Careggi, Florence, Italy.,Dipartimento Di Biotecnologie Mediche, Università Di Siena, Italy.,I.R.C.C.S. Fondazione Don Carlo Gnocchi, Florence, Italy
| | - Alessandro Bartoloni
- Dipartimento Di Medicina Sperimentale E Clinica, Università Di Firenze, Florence, Italy.,SOD Malattie Infettive E Tropicali, Azienda Ospedaliero Universitaria Careggi, Florence, Italy
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27
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Lodermeyer F, Prato M, Costa RD, Guldi DM. Facile and quick preparation of carbon nanohorn-based counter electrodes for efficient dye-sensitized solar cells. Nanoscale 2016; 8:7556-7561. [PMID: 26984581 DOI: 10.1039/c6nr00629a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
For the first time, Pt-free counter electrodes based on carbon nanohorns for highly efficient dye-sensitized solar cells were assembled by a facile and fast drop cast technique. These novel electrodes feature an effective catalytic behavior towards the reduction of I3(-) and, as such, afford even higher short-circuit current densities compared to Pt-based references. In a final device, solar cells with 7.7% efficiency were achieved.
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Affiliation(s)
- F Lodermeyer
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nuremberg, Egerlandstr. 3, 91058 Erlangen, Germany.
| | - M Prato
- Center of Excellence for Nanostructured Materials, INSTM, Unit of Trieste, Dipartimento di Scienze Chimiche e Farmaceutiche, Università degli Studi di Trieste, Piazzale Europa 1, 34127 Trieste, Italy and Carbon Nanobiotechnology Laboratory, CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastian, Spain
| | - R D Costa
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nuremberg, Egerlandstr. 3, 91058 Erlangen, Germany.
| | - D M Guldi
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), University of Erlangen-Nuremberg, Egerlandstr. 3, 91058 Erlangen, Germany.
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28
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Đorđević L, Marangoni T, De Leo F, Papagiannouli I, Aloukos P, Couris S, Pavoni E, Monti F, Armaroli N, Prato M, Bonifazi D. [60]Fullerene–porphyrin [n]pseudorotaxanes: self-assembly, photophysics and third-order NLO response. Phys Chem Chem Phys 2016; 18:11858-68. [DOI: 10.1039/c5cp06055a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Herein we report a series of porphyrin and methano[60]fullerene that undergo self-assembly.
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29
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Melchionna M, Beltram A, Montini T, Monai M, Nasi L, Fornasiero P, Prato M. Highly efficient hydrogen production through ethanol photoreforming by a carbon nanocone/Pd@TiO2 hybrid catalyst. Chem Commun (Camb) 2016; 52:764-7. [DOI: 10.1039/c5cc08015k] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Production of molecular hydrogen (H2) is becoming an increasingly prominent process, due to the high expectations as a new green energy carrier and key reagent for many industrial processes.
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Affiliation(s)
- M. Melchionna
- Department of Chemical and Pharmaceutical Sciences
- INSTM, ICCOM-CNR
- University of Trieste
- 34127 Trieste
- Italy
| | - A. Beltram
- Department of Chemical and Pharmaceutical Sciences
- INSTM, ICCOM-CNR
- University of Trieste
- 34127 Trieste
- Italy
| | - T. Montini
- Department of Chemical and Pharmaceutical Sciences
- INSTM, ICCOM-CNR
- University of Trieste
- 34127 Trieste
- Italy
| | - M. Monai
- Department of Chemical and Pharmaceutical Sciences
- INSTM, ICCOM-CNR
- University of Trieste
- 34127 Trieste
- Italy
| | - L. Nasi
- CNR-IMEM Institute
- 43124 Parma
- Italy
| | - P. Fornasiero
- Department of Chemical and Pharmaceutical Sciences
- INSTM, ICCOM-CNR
- University of Trieste
- 34127 Trieste
- Italy
| | - M. Prato
- Department of Chemical and Pharmaceutical Sciences
- INSTM, ICCOM-CNR
- University of Trieste
- 34127 Trieste
- Italy
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30
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Abstract
The combination of the very different chemical natures of carbon nanotubes (CNTs) and proteins gives rise to systems with unprecedented performance, thanks to a rich pool of very diverse chemical, electronic, catalytic and biological properties. Here we review recent advances in the field, including innovative and imaginative aspects from a nanoscale point of view. The tubular nature of CNTs allows for internal protein encapsulation, and also for their external coating by protein cages, affording bottom-up ordering of molecules in hierarchical structures. To achieve such complex systems it is imperative to master the intermolecular forces between CNTs and proteins, including geometry effects (e.g. CNT diameter and curvature) and how they translate into changes in the local environment (e.g. water entropy). The type of interaction between proteins and CNTs has important consequences for the preservation of their structure and, in turn, function. This key aspect cannot be neglected during the design of their conjugation, be it covalent, non-covalent, or based on a combination of both methods. The review concludes with a brief discussion of the very many applications intended for CNT-protein systems that go across various fields of science, from industrial biocatalysis to nanomedicine, from innovative materials to biotechnological tools in molecular biology research.
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Affiliation(s)
- S Marchesan
- Center of Excellence for Nanostructured Materials (CENMAT) and INSTM, Unit of Trieste, Department of Chemical and Pharmaceutical Sciences, University of Trieste, via L. Giorgieri 1, 34127 Trieste, Italy.
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31
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Beltram A, Melchionna M, Montini T, Nasi L, Gorte R, Prato M, Fornasiero P. Improved activity and stability of Pd@CeO2 core–shell catalysts hybridized with multi-walled carbon nanotubes in the water gas shift reaction. Catal Today 2015. [DOI: 10.1016/j.cattod.2015.03.032] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Tsoufis T, Syrgiannis Z, Akhtar N, Prato M, Katsaros F, Sideratou Z, Kouloumpis A, Gournis D, Rudolf P. In situ growth of capping-free magnetic iron oxide nanoparticles on liquid-phase exfoliated graphene. Nanoscale 2015; 7:8995-9003. [PMID: 25920624 DOI: 10.1039/c5nr00765h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report a facile approach for the in situ synthesis of very small iron oxide nanoparticles on the surface of high-quality graphene sheets. Our synthetic strategy involved the direct, liquid-phase exfoliation of highly crystalline graphite (avoiding any oxidation treatment) and the subsequent chemical functionalization of the graphene sheets via the well-established 1,3-dipolar cycloaddition reaction. The resulting graphene derivatives were employed for the immobilization of the nanoparticle precursor (Fe cations) at the introduced organic groups by a modified wet-impregnation method, followed by interaction with acetic acid vapours. The final graphene-iron oxide hybrid material was achieved by heating (calcination) in an inert atmosphere. Characterization by X-ray diffraction, transmission electron and atomic force microscopy, Raman and X-ray photoelectron spectroscopy gave evidence for the formation of rather small (<12 nm), spherical, magnetite-rich nanoparticles which were evenly distributed on the surface of few-layer (<1.2 nm thick) graphene. Due to the presence of the iron oxide nanoparticles, the hybrid material showed a superparamagnetic behaviour at room temperature.
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Affiliation(s)
- T Tsoufis
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, NL-9747AG Groningen, The Netherlands.
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33
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Syrgiannis Z, Bonasera A, Tenori E, La Parola V, Hadad C, Gruttadauria M, Giacalone F, Prato M. Chemical modification of carbon nanomaterials (SWCNTs, DWCNTs, MWCNTs and SWCNHs) with diphenyl dichalcogenides. Nanoscale 2015; 7:6007-13. [PMID: 25761902 DOI: 10.1039/c4nr07196d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Control over chemical functionalization is a crucial point in the field of nanotechnology. Herein, we present the covalent functionalization of several carbon nanoforms (single-walled carbon nanotubes, double-walled carbon nanotubes, multi-walled carbon nanotubes and carbon nanohorns) by means of diphenyl dichalcogenides. These ones show different reactivity to the nanomaterials and are able to modify their electronic properties depending on the electronegativity of the functionalizing heteroatom. Theoretical calculations were also performed to support the experimental results. All the modified structured nanocarbons were thoroughly characterized by TGA Raman, XPS, UV/Vis/nIR, IR and TEM techniques. Our findings propose a simple approach to functionalize carbon nanomaterials and, in the meantime, to tune their electronic properties.
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Affiliation(s)
- Z Syrgiannis
- Centre of Excellence for Nanostructured Materials (CENMAT), INSTM, unit of Trieste, Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, via L. Giorgieri 1, 34127, Trieste, Italy.
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Abstract
Carbon nanotubes have emerged as unique carbon allotropes that bear very interesting prospects in catalysis.
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Affiliation(s)
- M. Melchionna
- Department of Chemical and Pharmaceutical Sciences & UdR INSTM
- ICCOM-CNR
- University of Trieste
- 34127 Trieste
- Italy
| | - S. Marchesan
- Department of Chemical and Pharmaceutical Sciences & UdR INSTM
- ICCOM-CNR
- University of Trieste
- 34127 Trieste
- Italy
| | - M. Prato
- Department of Chemical and Pharmaceutical Sciences & UdR INSTM
- ICCOM-CNR
- University of Trieste
- 34127 Trieste
- Italy
| | - P. Fornasiero
- Department of Chemical and Pharmaceutical Sciences & UdR INSTM
- ICCOM-CNR
- University of Trieste
- 34127 Trieste
- Italy
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35
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Servant A, Bianco A, Prato M, Kostarelos K. Graphene for multi-functional synthetic biology: The last ‘zeitgeist’ in nanomedicine. Bioorg Med Chem Lett 2014; 24:1638-49. [DOI: 10.1016/j.bmcl.2014.01.051] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Revised: 01/13/2014] [Accepted: 01/18/2014] [Indexed: 12/31/2022]
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36
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Prato M, Soares AEE. Production of Sexuals and Mating Frequency in the Stingless Bee Tetragonisca angustula (Latreille) (Hymenoptera, Apidae). Neotrop Entomol 2013; 42:474-482. [PMID: 23949986 DOI: 10.1007/s13744-013-0154-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Accepted: 07/04/2013] [Indexed: 06/02/2023]
Abstract
Queen, worker, and male production was studied for 1 year in three queenright colonies of Tetragonisca angustula (Latreille). We sampled brood combs monthly and noticed that the number of brood cells and production of individuals were similar among colonies. Although the production of queens did not vary significantly, the frequencies of workers, males, and the number of cells among the combs varied over time. The production of males was highly seasonal, occurring mostly from February to April, coinciding with the period of intense brood cells production, when colonies produced more males and less workers, resulting in a negative correlation. Although the frequency of queens has not varied in time, the seasonal availability of males affected the mating frequency and the time spent since emergence until fertilization of queens. In the T. angustula colonies studied, the population dynamics was highly seasonal and the mating success depended of male production, according to the season.
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Affiliation(s)
- M Prato
- Lab de Biologia e Genética de Abelhas, Depto Genética, FMRP-USP, Univ de São Paulo, bloco A, Av. Bandeirantes Univ de São Paulo, 3900, 14049-900, Ribeirão Preto, SP, Brasil.
| | - A E E Soares
- Lab de Biologia e Genética de Abelhas, Depto Genética, FMRP-USP, Univ de São Paulo, bloco A, Av. Bandeirantes Univ de São Paulo, 3900, 14049-900, Ribeirão Preto, SP, Brasil
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Boscolo S, Pelin M, De Bortoli M, Fontanive G, Barreras A, Berti F, Sosa S, Chaloin O, Bianco A, Yasumoto T, Prato M, Poli M, Tubaro A. Sandwich ELISA assay for the quantitation of palytoxin and its analogs in natural samples. Environ Sci Technol 2013; 47:2034-2042. [PMID: 23339823 DOI: 10.1021/es304222t] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Palytoxins are potent marine biotoxins that have recently become endemic to the Mediterranean Sea, and are becoming more frequently associated with seafood. Due to their high toxicity, suitable methods to quantify palytoxins are needed. Thus, we developed an indirect sandwich ELISA for palytoxin and 42-hydroxy-palytoxin. An intralaboratory study demonstrated sensitivity (limit of detection, LOD = 1.1 ng/mL; limit of quantitation, LOQ = 2.2 ng/mL), accuracy (bias of 2.1%), repeatability (RSDr = 6% and 9% for intra- and interassay variability, respectively) and specificity: other common marine toxins (okadaic acid, domoic acid, saxitoxin, brevetoxin-3, and yessotoxin) do not cross-react in this assay. It performed well in three different matrices: observed LOQs were 11.0, 9.6, and 2.4 ng/mL for mussel extracts, algal net samples and seawater, respectively, with good accuracy and precision. The LOQ in seafood is 11 μg palytoxin/kg mussel meat, lower than that of the most common detection technique, LC-MS/MS.
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Affiliation(s)
- S Boscolo
- Department of Life Sciences, University of Trieste, Via L. Giorgieri 10, 34127 Trieste, Italy
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Abadie J, Abbott BP, Abbott R, Abernathy M, Accadia T, Acernese F, Adams C, Adhikari R, Ajith P, Allen B, Allen G, Amador Ceron E, Amin RS, Anderson SB, Anderson WG, Antonucci F, Arain MA, Araya M, Aronsson M, Arun KG, Aso Y, Aston S, Astone P, Atkinson DE, Aufmuth P, Aulbert C, Babak S, Baker P, Ballardin G, Ballinger T, Ballmer S, Barker D, Barnum S, Barone F, Barr B, Barriga P, Barsotti L, Barsuglia M, Barton MA, Bartos I, Bassiri R, Bastarrika M, Bauchrowitz J, Bauer TS, Behnke B, Beker MG, Belletoile A, Benacquista M, Bertolini A, Betzwieser J, Beveridge N, Beyersdorf PT, Bigotta S, Bilenko IA, Billingsley G, Birch J, Birindelli S, Biswas R, Bitossi M, Bizouard MA, Black E, Blackburn JK, Blackburn L, Blair D, Bland B, Blom M, Boccara C, Bock O, Bodiya TP, Bondarescu R, Bondu F, Bonelli L, Bonnand R, Bork R, Born M, Bose S, Bosi L, Bouhou B, Boyle M, Braccini S, Bradaschia C, Brady PR, Braginsky VB, Brau JE, Breyer J, Bridges DO, Brillet A, Brinkmann M, Brisson V, Britzger M, Brooks AF, Brown DA, Budzyński R, Bulik T, Bulten HJ, Buonanno A, Burguet-Castell J, Burmeister O, Buskulic D, Buy C, Byer RL, Cadonati L, Cagnoli G, Cain J, Calloni E, Camp JB, Campagna E, Campsie P, Cannizzo J, Cannon KC, Canuel B, Cao J, Capano C, Carbognani F, Caudill S, Cavaglià M, Cavalier F, Cavalieri R, Cella G, Cepeda C, Cesarini E, Chalermsongsak T, Chalkley E, Charlton P, Chassande-Mottin E, Chelkowski S, Chen Y, Chincarini A, Christensen N, Chua SSY, Chung CTY, Clark D, Clark J, Clayton JH, Cleva F, Coccia E, Colacino CN, Colas J, Colla A, Colombini M, Conte R, Cook D, Corbitt TR, Cornish N, Corsi A, Costa CA, Coulon JP, Coward D, Coyne DC, Creighton JDE, Creighton TD, Cruise AM, Culter RM, Cumming A, Cunningham L, Cuoco E, Dahl K, Danilishin SL, Dannenberg R, D’Antonio S, Danzmann K, Das K, Dattilo V, Daudert B, Davier M, Davies G, Davis A, Daw EJ, Day R, Dayanga T, De Rosa R, DeBra D, Degallaix J, del Prete M, Dergachev V, DeRosa R, DeSalvo R, Devanka P, Dhurandhar S, Di Fiore L, Di Lieto A, Di Palma I, Di Paolo Emilio M, Di Virgilio A, Díaz M, Dietz A, Donovan F, Dooley KL, Doomes EE, Dorsher S, Douglas ESD, Drago M, Drever RWP, Driggers JC, Dueck J, Dumas JC, Dwyer S, Eberle T, Edgar M, Edwards M, Effler A, Ehrens P, Ely G, Engel R, Etzel T, Evans M, Evans T, Fafone V, Fairhurst S, Fan Y, Farr BF, Fazi D, Fehrmann H, Feldbaum D, Ferrante I, Fidecaro F, Finn LS, Fiori I, Flaminio R, Flanigan M, Flasch K, Foley S, Forrest C, Forsi E, Fotopoulos N, Fournier JD, Franc J, Frasca S, Frasconi F, Frede M, Frei M, Frei Z, Freise A, Frey R, Fricke TT, Friedrich D, Fritschel P, Frolov VV, Fulda P, Fyffe M, Galimberti M, Gammaitoni L, Garofoli JA, Garufi F, Gemme G, Genin E, Gennai A, Ghosh S, Giaime JA, Giampanis S, Giardina KD, Giazotto A, Gill C, Goetz E, Goggin LM, González G, Goßler S, Gouaty R, Graef C, Granata M, Grant A, Gras S, Gray C, Greenhalgh RJS, Gretarsson AM, Greverie C, Grosso R, Grote H, Grunewald S, Guidi GM, Gustafson EK, Gustafson R, Hage B, Hall P, Hallam JM, Hammer D, Hammond G, Hanks J, Hanna C, Hanson J, Harms J, Harry GM, Harry IW, Harstad ED, Haughian K, Hayama K, Hayau JF, Hayler T, Heefner J, Heitmann H, Hello P, Heng IS, Heptonstall A, Hewitson M, Hild S, Hirose E, Hoak D, Hodge KA, Holt K, Hosken DJ, Hough J, Howell E, Hoyland D, Huet D, Hughey B, Husa S, Huttner SH, Huynh-Dinh T, Ingram DR, Inta R, Isogai T, Ivanov A, Jaranowski P, Johnson WW, Jones DI, Jones G, Jones R, Ju L, Kalmus P, Kalogera V, Kandhasamy S, Kanner J, Katsavounidis E, Kawabe K, Kawamura S, Kawazoe F, Kells W, Keppel DG, Khalaidovski A, Khalili FY, Khazanov EA, Kim H, King PJ, Kinzel DL, Kissel JS, Klimenko S, Kondrashov V, Kopparapu R, Koranda S, Kowalska I, Kozak D, Krause T, Kringel V, Krishnamurthy S, Krishnan B, Królak A, Kuehn G, Kullman J, Kumar R, Kwee P, Landry M, Lang M, Lantz B, Lastzka N, Lazzarini A, Leaci P, Leong J, Leonor I, Leroy N, Letendre N, Li J, Li TGF, Lin H, Lindquist PE, Lockerbie NA, Lodhia D, Lorenzini M, Loriette V, Lormand M, Losurdo G, Lu P, Luan J, Lubinski M, Lucianetti A, Lück H, Lundgren A, Machenschalk B, MacInnis M, Mageswaran M, Mailand K, Majorana E, Mak C, Maksimovic I, Man N, Mandel I, Mandic V, Mantovani M, Marchesoni F, Marion F, Márka S, Márka Z, Maros E, Marque J, Martelli F, Martin IW, Martin RM, Marx JN, Mason K, Masserot A, Matichard F, Matone L, Matzner RA, Mavalvala N, McCarthy R, McClelland DE, McGuire SC, McIntyre G, McIvor G, McKechan DJA, Meadors G, Mehmet M, Meier T, Melatos A, Melissinos AC, Mendell G, Menéndez DF, Mercer RA, Merill L, Meshkov S, Messenger C, Meyer MS, Miao H, Michel C, Milano L, Miller J, Minenkov Y, Mino Y, Mitra S, Mitrofanov VP, Mitselmakher G, Mittleman R, Moe B, Mohan M, Mohanty SD, Mohapatra SRP, Moraru D, Moreau J, Moreno G, Morgado N, Morgia A, Mors K, Mosca S, Moscatelli V, Mossavi K, Mours B, MowLowry C, Mueller G, Mukherjee S, Mullavey A, Müller-Ebhardt H, Munch J, Murray PG, Nash T, Nawrodt R, Nelson J, Neri I, Newton G, Nishida E, Nishizawa A, Nocera F, Nolting D, Ochsner E, O’Dell J, Ogin GH, Oldenburg RG, O’Reilly B, O’Shaughnessy R, Osthelder C, Ottaway DJ, Ottens RS, Overmier H, Owen BJ, Page A, Pagliaroli G, Palladino L, Palomba C, Pan Y, Pankow C, Paoletti F, Papa MA, Pardi S, Pareja M, Parisi M, Pasqualetti A, Passaquieti R, Passuello D, Patel P, Pathak D, Pedraza M, Pekowsky L, Penn S, Peralta C, Perreca A, Persichetti G, Pichot M, Pickenpack M, Piergiovanni F, Pietka M, Pinard L, Pinto IM, Pitkin M, Pletsch HJ, Plissi MV, Poggiani R, Postiglione F, Prato M, Predoi V, Price LR, Prijatelj M, Principe M, Prix R, Prodi GA, Prokhorov L, Puncken O, Punturo M, Puppo P, Quetschke V, Raab FJ, Rabeling DS, Radke T, Radkins H, Raffai P, Rakhmanov M, Rankins B, Rapagnani P, Raymond V, Re V, Reed CM, Reed T, Regimbau T, Reid S, Reitze DH, Ricci F, Riesen R, Riles K, Roberts P, Robertson NA, Robinet F, Robinson C, Robinson EL, Rocchi A, Roddy S, Röver C, Rolland L, Rollins J, Romano JD, Romano R, Romie JH, Rosińska D, Rowan S, Rüdiger A, Ruggi P, Ryan K, Sakata S, Sakosky M, Salemi F, Sammut L, Sancho de la Jordana L, Sandberg V, Sannibale V, Santamaría L, Santostasi G, Saraf S, Sassolas B, Sathyaprakash BS, Sato S, Satterthwaite M, Saulson PR, Savage R, Schilling R, Schnabel R, Schofield R, Schulz B, Schutz BF, Schwinberg P, Scott J, Scott SM, Searle AC, Seifert F, Sellers D, Sengupta AS, Sentenac D, Sergeev A, Shaddock D, Shapiro B, Shawhan P, Shoemaker DH, Sibley A, Siemens X, Sigg D, Singer A, Sintes AM, Skelton G, Slagmolen BJJ, Slutsky J, Smith JR, Smith MR, Smith ND, Somiya K, Sorazu B, Speirits FC, Sperandio L, Stein AJ, Stein LC, Steinlechner S, Steplewski S, Stochino A, Stone R, Strain KA, Strigin S, Stroeer A, Sturani R, Stuver AL, Summerscales TZ, Sung M, Susmithan S, Sutton PJ, Swinkels B, Talukder D, Tanner DB, Tarabrin SP, Taylor JR, Taylor R, Thomas P, Thorne KA, Thorne KS, Thrane E, Thüring A, Titsler C, Tokmakov KV, Toncelli A, Tonelli M, Torre O, Torres C, Torrie CI, Tournefier E, Travasso F, Traylor G, Trias M, Trummer J, Tseng K, Turner L, Ugolini D, Urbanek K, Vahlbruch H, Vaishnav B, Vajente G, Vallisneri M, van den Brand JFJ, Van Den Broeck C, van der Putten S, van der Sluys MV, van Veggel AA, Vass S, Vaulin R, Vavoulidis M, Vecchio A, Vedovato G, Veitch J, Veitch PJ, Veltkamp C, Verkindt D, Vetrano F, Viceré A, Villar A, Vinet JY, Vocca H, Vorvick C, Vyachanin SP, Waldman SJ, Wallace L, Wanner A, Ward RL, Was M, Wei P, Weinert M, Weinstein AJ, Weiss R, Wen L, Wen S, Wessels P, West M, Westphal T, Wette K, Whelan JT, Whitcomb SE, White DJ, Whiting BF, Wilkinson C, Willems PA, Williams L, Willke B, Winkelmann L, Winkler W, Wipf CC, Wiseman AG, Woan G, Wooley R, Worden J, Yakushin I, Yamamoto H, Yamamoto K, Yeaton-Massey D, Yoshida S, Yu PP, Yvert M, Zanolin M, Zhang L, Zhang Z, Zhao C, Zotov N, Zucker ME, Zweizig J. Publisher’s Note: Search for gravitational waves from compact binary coalescence in LIGO and Virgo data from S5 and VSR1 [Phys. Rev. D82, 102001 (2010)]. Int J Clin Exp Med 2012. [DOI: 10.1103/physrevd.85.089903] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Carta A, Favilla S, Prato M, Bianchi-Marzoli S, Sadun AA, Mora P. Accuracy of Funduscopy to Identify True Edema versus Pseudoedema of the Optic Disc. ACTA ACUST UNITED AC 2012; 53:1-6. [DOI: 10.1167/iovs.11-8082] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Arturo Carta
- From the Ophthalmology Section, Head and Neck Department, University of Parma, Parma, Italy
| | | | - Marco Prato
- Pure and Applied Mathematics, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Alfredo A. Sadun
- Doheny Eye Institute, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Paolo Mora
- From the Ophthalmology Section, Head and Neck Department, University of Parma, Parma, Italy
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Abadie J, Abbott BP, Abbott R, Abernathy M, Accadia T, Acernese F, Adams C, Adhikari R, Ajith P, Allen B, Allen GS, Ceron EA, Amin RS, Anderson SB, Anderson WG, Antonucci F, Arain MA, Araya MC, Aronsson M, Arun KG, Aso Y, Aston SM, Astone P, Atkinson D, Aufmuth P, Aulbert C, Babak S, Baker P, Ballardin G, Ballmer S, Barker D, Barnum S, Barone F, Barr B, Barriga P, Barsotti L, Barsuglia M, Barton MA, Bartos I, Bassiri R, Bastarrika M, Bauchrowitz J, Bauer TS, Behnke B, Beker MG, Belletoile A, Benacquista M, Bertolini A, Betzwieser J, Beveridge N, Beyersdorf PT, Bigotta S, Bilenko IA, Billingsley G, Birch J, Birindelli S, Biswas R, Bitossi M, Bizouard MA, Black E, Blackburn JK, Blackburn L, Blair D, Bland B, Blom M, Boccara C, Bock O, Bodiya TP, Bondarescu R, Bondu F, Bonelli L, Bonnand R, Bork R, Born M, Bose S, Bosi L, Bouhou B, Boyle M, Braccini S, Bradaschia C, Brady PR, Braginsky VB, Brau JE, Breyer J, Bridges DO, Brillet A, Brinkmann M, Brisson V, Britzger M, Brooks AF, Brown DA, Budzyński R, Bulik T, Bulten HJ, Buonanno A, Burguet-Castell J, Burmeister O, Buskulic D, Buy C, Byer RL, Cadonati L, Cagnoli G, Cain J, Calloni E, Camp JB, Campagna E, Campsie P, Cannizzo J, Cannon K, Canuel B, Cao J, Capano C, Carbognani F, Caride S, Caudill S, Cavaglià M, Cavalier F, Cavalieri R, Cella G, Cepeda C, Cesarini E, Chalermsongsak T, Chalkley E, Charlton P, Chassande-Mottin E, Chelkowski S, Chen Y, Chincarini A, Christensen N, Chua SSY, Chung CTY, Clark D, Clark J, Clayton JH, Cleva F, Coccia E, Colacino CN, Colas J, Colla A, Colombini M, Conte R, Cook D, Corbitt TR, Cornish N, Corsi A, Costa CA, Coulon JP, Coward DM, Coyne DC, Creighton JDE, Creighton TD, Cruise AM, Culter RM, Cumming A, Cunningham L, Cuoco E, Dahl K, Danilishin SL, Dannenberg R, D'Antonio S, Danzmann K, Das K, Dattilo V, Daudert B, Davier M, Davies G, Davis A, Daw EJ, Day R, Dayanga T, De Rosa R, DeBra D, Degallaix J, del Prete M, Dergachev V, DeRosa R, DeSalvo R, Devanka P, Dhurandhar S, Di Fiore L, Di Lieto A, Di Palma I, Di Paolo Emilio M, Di Virgilio A, Díaz M, Dietz A, Donovan F, Dooley KL, Doomes EE, Dorsher S, Douglas ESD, Drago M, Drever RWP, Driggers JC, Dueck J, Dumas JC, Eberle T, Edgar M, Edwards M, Effler A, Ehrens P, Engel R, Etzel T, Evans M, Evans T, Fafone V, Fairhurst S, Fan Y, Farr BF, Fazi D, Fehrmann H, Feldbaum D, Ferrante I, Fidecaro F, Finn LS, Fiori I, Flaminio R, Flanigan M, Flasch K, Foley S, Forrest C, Forsi E, Fotopoulos N, Fournier JD, Franc J, Frasca S, Frasconi F, Frede M, Frei M, Frei Z, Freise A, Frey R, Fricke TT, Friedrich D, Fritschel P, Frolov VV, Fulda P, Fyffe M, Galimberti M, Gammaitoni L, Garofoli JA, Garufi F, Gemme G, Genin E, Gennai A, Gholami I, Ghosh S, Giaime JA, Giampanis S, Giardina KD, Giazotto A, Gill C, Goetz E, Goggin LM, González G, Gorodetsky ML, Gossler S, Gouaty R, Graef C, Granata M, Grant A, Gras S, Gray C, Greenhalgh RJS, Gretarsson AM, Greverie C, Grosso R, Grote H, Grunewald S, Guidi GM, Gustafson EK, Gustafson R, Hage B, Hall P, Hallam JM, Hammer D, Hammond G, Hanks J, Hanna C, Hanson J, Harms J, Harry GM, Harry IW, Harstad ED, Haughian K, Hayama K, Hayau JF, Hayler T, Heefner J, Heitmann H, Hello P, Heng IS, Heptonstall AW, Hewitson M, Hild S, Hirose E, Hoak D, Hodge KA, Holt K, Hosken DJ, Hough J, Howell EJ, Hoyland D, Huet D, Hughey B, Husa S, Huttner SH, Huynh-Dinh T, Ingram DR, Inta R, Isogai T, Ivanov A, Jaranowski P, Johnson WW, Jones DI, Jones G, Jones R, Ju L, Kalmus P, Kalogera V, Kandhasamy S, Kanner JB, Katsavounidis E, Kawabe K, Kawamura S, Kawazoe F, Kells W, Keppel DG, Khalaidovski A, Khalili FY, Khazanov EA, Kim H, King PJ, Kinzel DL, Kissel JS, Klimenko S, Kondrashov V, Kopparapu R, Koranda S, Kowalska I, Kozak D, Krause T, Kringel V, Krishnamurthy S, Krishnan B, Królak A, Kuehn G, Kullman J, Kumar R, Kwee P, Landry M, Lang M, Lantz B, Lastzka N, Lazzarini A, Leaci P, Leong J, Leonor I, Leroy N, Letendre N, Li J, Li TGF, Liguori N, Lin H, Lindquist PE, Lockerbie NA, Lodhia D, Lorenzini M, Loriette V, Lormand M, Losurdo G, Lu P, Luan J, Lubinski M, Lucianetti A, Lück H, Lundgren AD, Machenschalk B, MacInnis M, Mageswaran M, Mailand K, Majorana E, Mak C, Maksimovic I, Man N, Mandel I, Mandic V, Mantovani M, Marchesoni F, Marion F, Márka S, Márka Z, Maros E, Marque J, Martelli F, Martin IW, Martin RM, Marx JN, Mason K, Masserot A, Matichard F, Matone L, Matzner RA, Mavalvala N, McCarthy R, McClelland DE, McGuire SC, McIntyre G, McIvor G, McKechan DJA, Meadors G, Mehmet M, Meier T, Melatos A, Melissinos AC, Mendell G, Menéndez DF, Mercer RA, Merill L, Meshkov S, Messenger C, Meyer MS, Miao H, Michel C, Milano L, Miller J, Minenkov Y, Mino Y, Mitra S, Mitrofanov VP, Mitselmakher G, Mittleman R, Moe B, Mohan M, Mohanty SD, Mohapatra SRP, Moraru D, Moreau J, Moreno G, Morgado N, Morgia A, Morioka T, Mors K, Mosca S, Moscatelli V, Mossavi K, Mours B, Mow-Lowry CM, Mueller G, Mukherjee S, Mullavey A, Müller-Ebhardt H, Munch J, Murray PG, Nash T, Nawrodt R, Nelson J, Neri I, Newton G, Nishizawa A, Nocera F, Nolting D, Ochsner E, O'Dell J, Ogin GH, Oldenburg RG, O'Reilly B, O'Shaughnessy R, Osthelder C, Ottaway DJ, Ottens RS, Overmier H, Owen BJ, Page A, Pagliaroli G, Palladino L, Palomba C, Pan Y, Pankow C, Paoletti F, Papa MA, Pardi S, Pareja M, Parisi M, Pasqualetti A, Passaquieti R, Passuello D, Patel P, Pathak D, Pedraza M, Pekowsky L, Penn S, Peralta C, Perreca A, Persichetti G, Pichot M, Pickenpack M, Piergiovanni F, Pietka M, Pinard L, Pinto IM, Pitkin M, Pletsch HJ, Plissi MV, Poggiani R, Postiglione F, Prato M, Predoi V, Price LR, Prijatelj M, Principe M, Prix R, Prodi GA, Prokhorov L, Puncken O, Punturo M, Puppo P, Quetschke V, Raab FJ, Rabeling DS, Radke T, Radkins H, Raffai P, Rakhmanov M, Rankins B, Rapagnani P, Raymond V, Re V, Reed CM, Reed T, Regimbau T, Reid S, Reitze DH, Ricci F, Riesen R, Riles K, Roberts P, Robertson NA, Robinet F, Robinson C, Robinson EL, Rocchi A, Roddy S, Röver C, Rolland L, Rollins J, Romano JD, Romano R, Romie JH, Rosińska D, Rowan S, Rüdiger A, Ruggi P, Ryan K, Sakata S, Sakosky M, Salemi F, Sammut L, de la Jordana LS, Sandberg V, Sannibale V, Santamaría L, Santostasi G, Saraf S, Sassolas B, Sathyaprakash BS, Sato S, Satterthwaite M, Saulson PR, Savage R, Schilling R, Schnabel R, Schofield RMS, Schulz B, Schutz BF, Schwinberg P, Scott J, Scott SM, Searle AC, Seifert F, Sellers D, Sengupta AS, Sentenac D, Sergeev A, Shaddock DA, Shapiro B, Shawhan P, Shoemaker DH, Sibley A, Siemens X, Sigg D, Singer A, Sintes AM, Skelton G, Slagmolen BJJ, Slutsky J, Smith JR, Smith MR, Smith ND, Somiya K, Sorazu B, Speirits FC, Sperandio L, Stein AJ, Stein LC, Steinlechner S, Steplewski S, Stochino A, Stone R, Strain KA, Strigin S, Stroeer AS, Sturani R, Stuver AL, Summerscales TZ, Sung M, Susmithan S, Sutton PJ, Swinkels B, Szokoly GP, Talukder D, Tanner DB, Tarabrin SP, Taylor JR, Taylor R, Thomas P, Thorne KA, Thorne KS, Thrane E, Thüring A, Titsler C, Tokmakov KV, Toncelli A, Tonelli M, Torre O, Torres C, Torrie CI, Tournefier E, Travasso F, Traylor G, Trias M, Trummer J, Tseng K, Turner L, Ugolini D, Urbanek K, Vahlbruch H, Vaishnav B, Vajente G, Vallisneri M, van den Brand JFJ, Van Den Broeck C, van der Putten S, van der Sluys MV, van Veggel AA, Vass S, Vaulin R, Vavoulidis M, Vecchio A, Vedovato G, Veitch J, Veitch PJ, Veltkamp C, Verkindt D, Vetrano F, Viceré A, Villar AE, Vinet JY, Vocca H, Vorvick C, Vyachanin SP, Waldman SJ, Wallace L, Wanner A, Ward RL, Was M, Wei P, Weinert M, Weinstein AJ, Weiss R, Wen L, Wen S, Wessels P, West M, Westphal T, Wette K, Whelan JT, Whitcomb SE, White D, Whiting BF, Wilkinson C, Willems PA, Williams L, Willke B, Winkelmann L, Winkler W, Wipf CC, Wiseman AG, Woan G, Wooley R, Worden J, Yakushin I, Yamamoto H, Yamamoto K, Yeaton-Massey D, Yoshida S, Yu P, Yvert M, Zanolin M, Zhang L, Zhang Z, Zhao C, Zotov N, Zucker ME, Zweizig J. Directional limits on persistent gravitational waves using LIGO S5 science data. Phys Rev Lett 2011; 107:271102. [PMID: 22243300 DOI: 10.1103/physrevlett.107.271102] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2011] [Indexed: 05/31/2023]
Abstract
The gravitational-wave (GW) sky may include nearby pointlike sources as well as stochastic backgrounds. We perform two directional searches for persistent GWs using data from the LIGO S5 science run: one optimized for pointlike sources and one for arbitrary extended sources. Finding no evidence to support the detection of GWs, we present 90% confidence level (C.L.) upper-limit maps of GW strain power with typical values between 2-20×10(-50) strain(2) Hz(-1) and 5-35×10(-49) strain(2) Hz(-1) sr(-1) for pointlike and extended sources, respectively. The latter result is the first of its kind. We also set 90% C.L. limits on the narrow-band root-mean-square GW strain from interesting targets including Sco X-1, SN 1987A and the Galactic center as low as ≈7×10(-25) in the most sensitive frequency range near 160 Hz.
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Affiliation(s)
- J Abadie
- LIGO-California Institute of Technology, Pasadena, California 91125, USA
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Accadia T, Acernese F, Astone P, Ballardin G, Barone F, Barsuglia M, Basti A, Bauer TS, Bebronne M, Beker MG, Belletoile A, Bitossi M, Bizouard MA, Blom M, Bondu F, Bonelli L, Bonnand R, Boschi V, Bosi L, Bouhou B, Braccini S, Bradaschia C, Branchesi M, Briant T, Brillet A, Brisson V, Bulik T, Bulten HJ, Buskulic D, Buy C, Cagnoli G, Calloni E, Canuel B, Carbognani F, Cavalier F, Cavalieri R, Cella G, Cesarini E, Chaibi O, Chassande-Mottin E, Chincarini A, Chiummo A, Cleva F, Coccia E, Cohadon PF, Colacino CN, Colas J, Colla A, Colombini M, Conte A, Corsi A, Coulon JP, Cuoco E, D' Antonio S, Dattilo V, Davier M, Day R, De Rosa R, Debreczeni G, Del Pozzo W, del Prete M, Di Fiore L, Di Lieto A, Di Paolo Emilio M, Di Virgilio A, Dietz A, Drago M, Endroczi G, Fafone V, Ferrante I, Fidecaro F, Fiori I, Flaminio R, Forte LA, Fournier JD, Franc J, Frasca S, Frasconi F, Galimberti M, Gammaitoni L, Garufi F, Gáspár ME, Gemme G, Genin E, Gennai A, Giazotto A, Gouaty R, Granata M, Greverie C, Guidi GM, Hayau JF, Heidmann A, Heitmann H, Hello P, Jaranowski P, Kowalska I, Królak A, Leroy N, Letendre N, Li TGF, Liguori N, Lorenzini M, Loriette V, Losurdo G, Majorana E, Maksimovic I, Man N, Mantovani M, Marchesoni F, Marion F, Marque J, Martelli F, Masserot A, Michel C, Milano L, Minenkov Y, Mohan M, Morgado N, Morgia A, Mours B, Naticchioni L, Nocera F, Pagliaroli G, Palladino L, Palomba C, Paoletti F, Parisi M, Pasqualetti A, Passaquieti R, Passuello D, Persichetti G, Piergiovanni F, Pietka M, Pinard L, Poggiani R, Prato M, Prodi GA, Punturo M, Puppo P, Rabeling DS, Rácz I, Rapagnani P, Re V, Regimbau T, Ricci F, Robinet F, Rocchi A, Rolland L, Romano R, Rosińska D, Ruggi P, Sassolas B, Sentenac D, Sperandio L, Sturani R, Swinkels B, Tacca M, Taffarello L, Toncelli A, Tonelli M, Torre O, Tournefier E, Travasso F, Vajente G, van den Brand JFJ, Van den Broeck C, van der Putten S, Vasuth M, Vavoulidis M, Vedovato G, Verkindt D, Vetrano F, Viceré A, Vinet JY, Vitale S, Vocca H, Ward RL, Was M, Yvert M, Zadroźny A, Zendri JP. A state observer for the Virgo inverted pendulum. Rev Sci Instrum 2011; 82:094502. [PMID: 21974605 DOI: 10.1063/1.3637466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report an application of Kalman filtering to the inverted pendulum (IP) of the Virgo gravitational wave interferometer. Using subspace method system identification techniques, we calculated a linear mechanical model of Virgo IP from experimental transfer functions. We then developed a Kalman filter, based on the obtained state space representation, that estimates from open loop time domain data, the state variables of the system. This allows the observation (and eventually control) of every resonance mode of the IP mechanical structure independently.
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Affiliation(s)
- T Accadia
- Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France
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Abstract
This article presents a study of the interaction of octadecanethiol molecules (C(18)) with nanoporous cluster-assembled gold films under a liquid environment based on a combined spectroscopic ellipsometry and X-ray photoelectron spectroscopy investigation. By comparing the optical response, following the deposition of C(18), of cluster-assembled films with varying degrees of porosity with that of flat surfaces and by resolving the corresponding features of the molecule-Au bond, we have been able to define the conditions that either favor molecular in-depth diffusion into the pores or promote the formation of a molecular self-assembled monolayer (SAM) restricted to the film surface. In the presence of abundant open pores, C(18) molecules strongly diffuse within the film interior and bind to the pore walls, whereas in the presence of porous films with less abundant open pores we have observed that the molecules tend to remain confined to the surface region, adopting a SAM-like configuration.
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Affiliation(s)
- F Bisio
- CNR-SPIN, C. so Perrone 24, I-16152 Genova, Italy.
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Prato M, Favilla S, Zanni L, Porro CA, Baraldi P. A regularization algorithm for decoding perceptual temporal profiles from fMRI data. Neuroimage 2011; 56:258-67. [PMID: 21296171 DOI: 10.1016/j.neuroimage.2011.01.074] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Revised: 01/21/2011] [Accepted: 01/28/2011] [Indexed: 10/18/2022] Open
Abstract
In several biomedical fields, researchers are faced with regression problems that can be stated as Statistical Learning problems. One example is given by decoding brain states from functional magnetic resonance imaging (fMRI) data. Recently, it has been shown that the general Statistical Learning problem can be restated as a linear inverse problem. Hence, new algorithms were proposed to solve this inverse problem in the context of Reproducing Kernel Hilbert Spaces. In this paper, we detail one iterative learning algorithm belonging to this class, called ν-method, and test its effectiveness in a between-subjects regression framework. Specifically, our goal was to predict the perceived pain intensity based on fMRI signals, during an experimental model of acute prolonged noxious stimulation. We found that, using a linear kernel, the psychophysical time profile was well reconstructed, while pain intensity was in some cases significantly over/underestimated. No substantial differences in terms of accuracy were found between the proposed approach and one of the state-of-the-art learning methods, the Support Vector Machines. Nonetheless, adopting the ν-method yielded a significant reduction in computational time, an advantage that became more evident when a relevant feature selection procedure was implemented. The ν-method can be easily extended and included in typical approaches for binary or multiple classification problems, and therefore it seems well-suited to build effective brain activity estimators.
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Affiliation(s)
- Marco Prato
- Dipartimento di Matematica Pura e Applicata, Università di Modena e Reggio Emilia, Modena, Italy
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Accadia T, Acernese F, Antonucci F, Aoudia S, Arun KG, Astone P, Ballardin G, Barone F, Barsuglia M, Bauer TS, Beker MG, Bigotta S, Birindelli S, Bitossi M, Bizouard MA, Blom M, Boccara C, Bondu F, Bonelli L, Bosi L, Braccini S, Bradaschia C, Brillet A, Budzynski R, Bulik T, Bulten HJ, Buskulic D, Cagnoli G, Calloni E, Campagna E, Canuel B, Carbognani F, Cavalier F, Cavalieri R, Cella G, Cesarini E, Chassande-Mottin E, Chincarini A, Cleva F, Coccia E, Colacino CN, Colas J, Colla A, Colombini M, Corda C, Corsi A, Coulon JP, Cuoco E, D'Antonio S, Dari A, Dattilo V, Davier M, Day R, De Rosa R, del Prete M, Di Fiore L, Di Lieto A, Emilio MDP, Di Virgilio A, Dietz A, Drago M, Fafone V, Ferrante I, Fidecaro F, Fiori I, Flaminio R, Fournier JD, Franc J, Frasca S, Frasconi F, Freise A, Gammaitoni L, Garufi F, Gemme G, Genin E, Gennai A, Giazotto A, Gouaty R, Granata M, Greverie C, Guidi GM, Heitmann H, Hello P, Hild S, Huet D, Jaranowski P, Kowalska I, Królak A, La Penna P, Leroy N, Letendre N, Li TGF, Lorenzini M, Loriette V, Losurdo G, Mackowski JM, Majorana E, Man N, Mantovani M, Marchesoni F, Marion F, Marque J, Martelli F, Masserot A, Michel C, Milano L, Minenkov Y, Mohan M, Moreau J, Morgado N, Morgia A, Mosca S, Moscatelli V, Mours B, Neri I, Nocera F, Pagliaroli G, Palladino L, Palomba C, Paoletti F, Pardi S, Parisi M, Pasqualetti A, Passaquieti R, Passuello D, Persichetti G, Pichot M, Piergiovanni F, Pietka M, Pinard L, Poggiani R, Prato M, Prodi GA, Punturo M, Puppo P, Rabaste O, Rabeling DS, Rapagnani P, Re V, Regimbau T, Ricci F, Robinet F, Rocchi A, Rolland L, Romano R, Rosińska D, Ruggi P, Sassolas B, Sentenac D, Sturani R, Swinkels B, Toncelli A, Tonelli M, Tournefier E, Travasso F, Trummer J, Vajentei G, van den Brand JFJ, van der Putten S, Vavoulidis M, Vedovato G, Verkindt D, Vetrano F, Viceré A, Vinet JY, Vocca H, Was M, Yvert M. In-vacuum Faraday isolation remote tuning. Appl Opt 2010; 49:4780-4790. [PMID: 20842804 DOI: 10.1364/ao.49.004780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In-vacuum Faraday isolators (FIs) are used in gravitational wave interferometers to prevent the disturbance caused by light reflected back to the input port from the interferometer itself. The efficiency of the optical isolation is becoming more critical with the increase of laser input power. An in-vacuum FI, used in a gravitational wave experiment (Virgo), has a 20 mm clear aperture and is illuminated by an almost 20 W incoming beam, having a diameter of about 5 mm. When going in vacuum at 10(-6) mbar, a degradation of the isolation exceeding 10 dB was observed. A remotely controlled system using a motorized lambda=2 waveplate inserted between the first polarizer and the Faraday rotator has proven its capability to restore the optical isolation to a value close to the one set up in air.
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Accadia T, Acernese F, Antonucci F, Aoudia S, Arun KG, Astone P, Ballardin G, Barone F, Barsuglia M, Bauer TS, Beker MG, Belletoile A, Bigotta S, Birindelli S, Bitossi M, Bizouard MA, Blom M, Boccara C, Bondu F, Bonelli L, Bonnand R, Bosi L, Braccini S, Bradaschia C, Brillet A, Brisson V, Budzyński R, Bulik T, Bulten HJ, Buskulic D, Buy C, Cagnoli G, Calloni E, Campagna E, Canuel B, Carbognani F, Cavalier F, Cavalieri R, Cella G, Cesarini E, Chassande-Mottin E, Chincarini A, Cleva F, Coccia E, Colacino CN, Colas J, Colla A, Colombini M, Corsi A, Coulon JP, Cuoco E, D'Antonio S, Dari A, Dattilo V, Davier M, Day R, Rosa RD, Prete MD, Fiore LD, Lieto AD, Emilio MDP, Virgilio AD, Dietz A, Drago M, Fafone V, Ferrante I, Fidecaro F, Fiori I, Flaminio R, Fournier JD, Franc J, Frasca S, Frasconi F, Freise A, Galimberti M, Gammaitoni L, Garufi F, Gemme G, Genin E, Gennai A, Giazotto A, Gouaty R, Granata M, Greverie C, Guidi GM, Heitmann H, Hello P, Hild S, Huet D, Jaranowski P, Kowalska I, Królak A, Leroy N, Letendre N, Li TGF, Lorenzini M, Loriette V, Losurdo G, Mackowski JM, Majorana E, Maksimovic I, Man N, Mantovani M, Marchesoni F, Marion F, Marque J, Martelli F, Masserot A, Michel C, Milano L, Minenkov Y, Mohan M, Moreau J, Morgado N, Morgia A, Mosca S, Moscatelli V, Mours B, Neri I, Nocera F, Pagliaroli G, Palladino L, Palomba C, Paoletti F, Pardi S, Parisi M, Pasqualetti A, Passaquieti R, Passuello D, Persichetti G, Pichot M, Piergiovanni F, Pietka M, Pinard L, Poggiani R, Prato M, Prodi GA, Punturo M, Puppo P, Rabaste O, Rabeling DS, Rapagnani P, Re V, Regimbau T, Ricci F, Robinet F, Rocchi A, Rolland L, Romano R, Rosińska D, Ruggi P, Sassolas B, Sentenac D, Sturani R, Swinkels B, Toncelli A, Tonelli M, Torre O, Tournefier E, Travasso F, Trummer J, Vajente G, Brand JFJVD, Putten SVD, Vavoulidis M, Vedovato G, Verkindt D, Vetrano F, Viceré A, Vinet JY, Vocca H, Was M, Yvert M. Virgo calibration and reconstruction of the gravitationnal wave strain during VSR1. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/228/1/012015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Accadia T, Acernese F, Antonucci F, Aoudia S, Arun KG, Astone P, Ballardin G, Barone F, Barsuglia M, Bauer TS, Beker MG, Belletoile A, Bigotta S, Birindelli S, Bizouard MA, Blom M, Boccara C, Bondu F, Bonelli L, Bonnand R, Bosi L, Braccini S, Bradaschia C, Brillet A, Brisson V, Budzyński R, Bulik T, Bulten HJ, Buskulic D, Buy C, Cagnoli G, Calloni E, Campagna E, Canuel B, Carbognani F, Cavalier F, Cavalieri R, Cella G, Cesarini E, Chassande-Mottin E, Chincarini A, Cleva F, Coccia E, Colacino CN, Colas J, Colla A, Colombini M, Corsi A, Coulon JP, Cuoco E, D'Antonio S, Dari A, Dattilo V, Davier M, Day R, Rosa RD, Prete MD, Fiore LD, Lieto AD, Emilio MDP, Virgilio AD, Dietz A, Drago M, Fafone V, Ferrante I, Fidecaro F, Fiori I, Flaminio R, Fournier JD, Franc J, Frasca S, Frasconi F, Freise A, Galimberti M, Gammaitoni L, Garufi F, Gemme G, Genin E, Gennai A, Giazotto A, Gouaty R, Granata M, Greverie C, Guidi G, Heitmann H, Hello P, Hild S, Huet D, Jaranowski P, Kowalska I, Królak A, Penna PL, Leroy N, Letendre N, Li TGF, Lorenzini M, Loriette V, Losurdo G, Mackowski JM, Majorana E, Man N, Mantovani M, Marchesoni F, Marion F, Marque J, Martelli F, Masserot A, Menzinger F, Michel C, Milano L, Minenkov Y, Mohan M, Moreau J, Morgado N, Morgia A, Mosca S, Moscatelli V, Mours B, Neri I, Nocera F, Pagliaroli G, Palomba C, Paoletti F, Pardi S, Parisi M, Pasqualetti A, Passaquieti R, Passuello D, Persichetti G, Pichot M, Piergiovanni F, Pietka M, Pinard L, Poggiani R, Prato M, Prodi GA, Punturo M, Puppo P, Rabaste O, Rabeling DS, Rapagnani P, Re V, Regimbau T, Ricci F, Robinet F, Rocchi A, Rolland L, Romano R, Rosińska D, Ruggi P, Sassolas B, Sentenac D, Sturani R, Swinkels B, Toncelli A, Tonelli M, Tournefier E, Travasso F, Trummer J, Vajente G, Brand JFJVD, Putten SVD, Vavoulidis M, Vedovato G, Verkindt D, Vetrano F, Viceré A, Vinet JY, Vocca H, Was M, Yvert M. Status and perspectives of the Virgo gravitational wave detector. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/203/1/012074] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Abstract
The use of carbon nanotubes in medicine is now at the crossroads between a proof-of-principle concept and an established preclinical candidate for a variety of therapeutic and diagnostic applications. Progress towards clinical trials will depend on the outcomes of efficacy and toxicology studies, which will provide the necessary risk-to-benefit assessments for carbon-nanotube-based materials. Here we focus on carbon nanotubes that have been studied in preclinical animal models, and draw attention to the promises, facts and challenges of these materials as they transition from research to the clinical phase. We address common questions regarding the use of carbon nanotubes in disease imaging and therapy, and highlight the opportunities and challenges ahead.
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Affiliation(s)
- K Kostarelos
- Nanomedicine Laboratory, Centre for Drug Delivery Research, The School of Pharmacy, University of London, London WC1N 1AX, UK.
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Bondino F, Cepek C, Tagmatarchis N, Prato M, Shinohara H, Goldoni A. Element-Specific Probe of the Magnetic and Electronic Properties of Dy incar-Fullerenes. J Phys Chem B 2006; 110:7289-95. [PMID: 16599500 DOI: 10.1021/jp055938z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The magnetic and electronic properties of a single atom and a pair of Dy atoms encapsulated inside fullerene carbon cages have been examined using X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD) as well as resonant photoelectron spectroscopy (RESPES) across the Dy M(4,5)-edge. The comparison of the measured XAS spectra with multiplet calculations indicates that the encaged Dy has a 4f( 9) configuration. The presence of Dy 5d spectral weight in the valence band is not detected by RESPES, indicating that Dy is in a formally trivalent state. The evolution of the encaged Dy orbital and spin moments of the 4f orbitals as a function of the applied magnetic field and temperature has been obtained from XMCD measurements. At 6.9 T and 4 K, both the orbital and the spin magnetic moments of the encaged Dy 4f electrons are dramatically smaller than those expected for the free Dy(3+) at saturation.
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Affiliation(s)
- F Bondino
- Laboratorio Nazionale TASC, INFM-CNR, S.S. 14 km 163.5 in Area Science Park, 34012 Trieste, Italy.
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Cusan C, Altinier G, Sosa S, Sibilla F, Bucar F, Tubaro A, Prato M, Spalluto G, Da Ros T. Anti-inflammatory and anti-oxidant activity of a new class of phenyl-pyrazolone derivatives. Curr Drug Discov Technol 2006; 3:67-73. [PMID: 16712464 DOI: 10.2174/157016306776637573] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
The anti-inflammatory activity of a new class of phenyl-pyrazolone derivatives, structurally related to phenidone, has been evaluated using the Croton oil ear test in mice as model of acute inflammation. Derivative 5h reduces the percentage of oedema similarly to indomethacin and more efficiently than phenylbutazone. The anti-inflammatory activity of these two reference drugs depends on their COX inhibition, but for the synthesized derivatives it has not been demonstrated a significant COX or LOX inhibition, as previously reported. While the anti-inflammatory activity of phenidone is correlated to its anti-oxidant properties, the redox potential of these compounds appears not decisive in the inflammatory process inhibition. In order to investigate the mechanism of action for these compounds, we quantified their anti-oxidant activity and the lipophilicity, and a relationship between the calculated logP and the percentage of oedema reduction was found. We hypothesize that the anti-inflammatory activity, recorded in vivo, could be related to lipophilic parameter of these compounds.
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Affiliation(s)
- C Cusan
- Dipartimento di Scienze Farmaceutiche, Università di Trieste, Piazzale Europa 1, I-34127 Trieste, Italy
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