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Morata Ruiz L, Ruggieri A, Falcone M, Pasquau Liaño J, Gentile I, Salavert Lletí M, Moreno Núñez L, Cascio A, Tascini C, Loeches Yagüe M, De Rosa FG, Ori A, Comandini A, Cattaneo A, Grossi PA. Dalbavancin real-life utilization among diabetic patients suffering from infections in Italy and Spain: The DALBADIA retrospective cohort study. J Glob Antimicrob Resist 2024; 36:200-209. [PMID: 38211660 DOI: 10.1016/j.jgar.2023.11.015] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 11/14/2023] [Accepted: 11/29/2023] [Indexed: 01/13/2024] Open
Abstract
OBJECTIVES To retrospectively describe the patterns of use of dalbavancin for treating infections in diabetic patients in Italian and Spanish standard clinical practice. METHODS DALBADIA [NCT04959799] was a multicentre, observational, retrospective cohort study, conducted in Italy and Spain. The study enrolled 97 adults with type 1 or 2 diabetes mellitus, treated with dalbavancin as per standard clinical practice for a Gram-positive bacterial infection or the Gram-positive component of a mixed infection. RESULTS Dalbavancin was used to treat cellulitis (18/92 patients, 19.6%), followed by prosthetic joint infection (14 patients, 15.2%), endocarditis (13 patients, 14.1%), and primary bacteraemia (10 patients, 10.9%); 78/92 (84.8%) patients had Gram-positive infections only, and 14 (15.2%) had mixed infections. The most frequently isolated microorganisms were Staphylococcus aureus in 43 (55.8% of the patients with microbial isolation), 25.6% of which methicillin-resistant; Staphylococcus epidermidis in 13 (16.9%), 53.8% of which methicillin-resistant; Enterococcus faecalis in 11 (14.3%). The main reason for the dalbavancin choice was the intent to simplify the antibiotic regimen (81.5% of cases). A multidisciplinary team participated in the treatment choice process for 53 (57.6%) patients. Dalbavancin was given as first-line antibiotic in 34 (37.0%) patients and administered as one infusion in 32 (34.8%), and as two infusions in 39 (42.4%). In total, 57/62 (91.9%) eligible patients with available assessment were judged clinically cured or improved at the end of observation. CONCLUSION In clinical practice, dalbavancin was used in diabetic patients to treat ABSSSIs and other difficult-to-treat infections with a favourable safety profile and a high rate of positive clinical responses.
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Affiliation(s)
- Laura Morata Ruiz
- Hospital Clìnic, Department of Infectious Diseases, University of Barcelona, Barcelona, Spain
| | | | - Marco Falcone
- AOU Pisana PO Cisanello, UO Malattie Infettive, University of Pisa, Pisa, Italy
| | - Juan Pasquau Liaño
- Hospital Universitario Virgen de las Nieve, Unidad de Enfermedades Infecciosas, Granada, Spain
| | - Ivan Gentile
- AOU Federico II, Malattie Infettive, Patologia Clinica e Medicina Interna, Università di Napoli Federico II, Naples, Italy
| | - Miguel Salavert Lletí
- Hospital Universitario y Politécnico La Fe, Unidad de Enfermedades Infecciosas, Valencia, Spain
| | - Leonor Moreno Núñez
- Hospital Universitario Fundación Alcorcón, Enfermedades Infecciosas, Madrid, Spain
| | - Antonio Cascio
- AOU Policlinico Giaccone, UOC Malattie Infettive e Tropicali, Palermo, Italy
| | | | | | - Francesco Giuseppe De Rosa
- Ospedale Cardinal Massaia, SC Malattie Infettive, Asti, Italy, AOU Città della Salute e Scienza, Presidio Molinette, Turin, Italy
| | | | | | | | - Paolo Antonio Grossi
- ASST Sette Laghi, SC Malattie Infettive e Tropicali, University of Insubria, Varese, Italy
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2
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Papavramidis T, Gentile I, Cattelan AM, Magnasco L, Viale P, Francisci D, Kofteridis DP, Tiseo G, Giamarellos-Bourboulis EJ, Lagi F, Pinna SM, D'Amico F, La Ferla L, Panagopoulos P, Gattuso G, Sipsas NV, Ruggieri A, Cattaneo A, Corio L, Comandini A, Mascagni P, Bassetti M. REDS study: Retrospective effectiveness study of dalbavancin and other standard of care of the same IV antibiotic class in patients with ABSSSI. Int J Antimicrob Agents 2023; 61:106746. [PMID: 36758778 DOI: 10.1016/j.ijantimicag.2023.106746] [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] [Received: 06/17/2022] [Revised: 10/24/2022] [Accepted: 02/01/2023] [Indexed: 02/11/2023]
Abstract
OBJECTIVES Acute bacterial skin and skin-structure infections (ABSSSIs) are a common source of morbidity in both the community and hospital settings. The current standard of care (SoC) requires multiple-dose intravenous (IV) regimens, which are associated with high hospitalisation rates, concomitant event risks and costs. Dalbavancin is a lipoglycopeptide, long-acting antibiotic that is effective against Gram-positive microorganisms, including methicillin-resistant Staphylococcus aureus (MRSA). Dalbavancin allows treatment of ABSSSIs with a single-shot IV administration or once weekly for 2 weeks, enabling clinicians to treat patients in an outpatient setting or to shorten the length of hospital stay. METHODS This multicentre, observational, retrospective study compared hospitalised patients who received dalbavancin and patients treated with the three most used IV antibiotics of the same or similar class: vancomycin, teicoplanin and daptomycin. The primary outcome was the time to discharge after starting the study antibiotics. RESULTS The primary endpoint, time to discharge from the study therapy start, was measured for both groups: the median number of days was 6.5 in the dalbavancin group vs. 11.0 days in the SoC group. Moreover, in subpopulations of patients receiving one or more concomitant antibiotics active for Gram-positives, MRSA and patients with the most prevalent comorbidity (i.e., diabetes), the advantage of dalbavancin in terms of length of stay was confirmed, with a halved time to discharge or more. Safety data on dalbavancin were consistent with data collected in clinical trials. No serious adverse drug reactions related to dalbavancin were reported and most of them were classified as skin and subcutaneous tissue disorders. One serious ADR was reported for daptomycin. CONCLUSIONS Although the analysis was only descriptive, it can be concluded that dalbavancin may enable a remarkable reduction in length of hospital stay, also confirming the clinical effectiveness and good safety profile demonstrated in clinical trials in a real-world setting.
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Affiliation(s)
- Theodossis Papavramidis
- 1st Propaedeutic Department of Surgery, University General Hospital of Thessaloniki AHEPA, Thessaloniki, Greece
| | - Ivan Gentile
- Department of Clinical Medicine and Surgery, Section of Infectious Diseases, University of Naples Federico II - Naples, Italy
| | - Anna Maria Cattelan
- Clinic of Infectious Diseases, Department of Internal Medicine, University Hospital of Padua, Padua, Italy
| | - Laura Magnasco
- Infectious Diseases Clinic, Department of Health Sciences, University of Genoa and Hospital Policlinico San Martino - IRCCS, Genoa, Italy
| | - Pierluigi Viale
- Infectious Diseases Unit - Department of Medical and Surgical Sciences, University of Bologna, Teaching Hospital S. Orsola-Malpighi, Bologna, Italy
| | - Daniela Francisci
- Infectious Diseases Clinic, University Hospital "S. Maria della Misericordia", University of Perugia, Perugia, Italy
| | - Diamantis P Kofteridis
- University Hospital of Heraklion, Department of Internal Medicine, Heraklion, Crete, Greece
| | - Giusy Tiseo
- Infectious Disease Unit, Azienda Ospedaliera Universitaria Pisana, Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | | | - Filippo Lagi
- Infectious and Tropical Diseases Unit, Careggi University Hospital, Florence, Italy
| | | | - Federico D'Amico
- Clinic of Infectious Diseases, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Lucia La Ferla
- Infectious Diseases Unit, Cannizzaro Hospital, Catania, Italy
| | - Periklis Panagopoulos
- Department of Internal Medicine, University Hospital of Alexandroupolis, Alexandroupolis, Greece
| | - Gianni Gattuso
- Department of Infectious Diseases, Carlo Poma Hospital, Mantua, Italy
| | - Nikolaos V Sipsas
- Infectious Diseases Unit, Pathophysiology Department, Laikon General Hospital and National and Kapodistrian University of Athens, Athens, Greece
| | | | | | | | | | | | - Matteo Bassetti
- Infectious Diseases Clinic, Department of Health Sciences, University of Genoa and Hospital Policlinico San Martino - IRCCS, Genoa, Italy
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Shrashimirova M, Tyanev I, Cubała WJ, Wichniak A, Vodickova-Borzova C, Ruggieri A, Bonelli A, Lipone P, Comandini A, Cattaneo A. Long-Term Treatment with Trazodone Once-A-Day (TzOAD) in Patients with MDD: An Observational, Prospective Study. Neuropsychiatr Dis Treat 2023; 19:1181-1193. [PMID: 37201102 PMCID: PMC10187683 DOI: 10.2147/ndt.s399948] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 04/27/2023] [Indexed: 05/20/2023] Open
Abstract
Purpose This was an observational, prospective, single-group, multicentre, international study aimed to describe the clinical response, functional impairment, and quality of life (QoL) of patients suffering from major depressive disorder (MDD) and in treatment with Trazodone Once-A-Day (TzOAD) monotherapy, over a 24-week period. Patients and Methods A total of 200 patients with a diagnosis of MDD who had been treated with TzOAD monotherapy were enrolled from 26 sites across 3 European countries (Bulgaria, Czech Republic, and Poland), including psychiatric private practices, and outpatient departments from general and psychiatric hospitals. Study assessments were completed by physicians and patients during routine visits within the normal practice of care. Results Clinical response was assessed by Clinical Global Impressions - Improvement (CGI-I) responders' percentage at 24 (±4) weeks. The majority of patients (86.5%) reported an improvement on the CGI-I compared to baseline. Results of the study confirm the well-known safety and tolerability of TzOAD, as well as its effectiveness on depressive symptoms, such as improvement in QoL, sleep quality, and overall functioning accompanied by favourable adherence and low drop-out rate. Conclusion To our knowledge, this is the first observational, long-term study in patients suffering from MDD, conducted with TzOAD. The improvement observed in clinical response, overall functioning, depressive symptoms, and QoL along the 24 weeks (+4) maintenance period and the very good retention rate, suggest that TzOAD may represent an effective and well tolerated treatment option for patients suffering from MDD.
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Affiliation(s)
| | - Ivan Tyanev
- Multiprofile Hospital for Active Treatment, Medical Clinic, Targovishte, Bulgaria
| | - Wiesław J Cubała
- Department of Psychiatry, Medical University of Gdańsk, Gdańsk, Poland
| | - Adam Wichniak
- Third Department of Psychiatry and Sleep Disorders Center, Institute of Psychiatry and Neurology, Warsaw, Poland
| | | | - Alessandro Ruggieri
- Global Medical Department, Angelini Pharma S.p.A, Rome, Italy
- Correspondence: Alessandro Ruggieri, Global Medical Department, Angelini Pharma S.p.A, Viale Amelia 70, Rome, 00181, Italy, Tel +390691045309, Email
| | | | - Paola Lipone
- Global Medical Department, Angelini Pharma S.p.A, Rome, Italy
| | | | - Agnese Cattaneo
- Global Medical Department, Angelini Pharma S.p.A, Rome, Italy
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Čermák J, Pietrucha S, Nawka A, Lipone P, Ruggieri A, Bonelli A, Comandini A, Cattaneo A. An Observational Pilot Study using a Digital Phenotyping Approach in Patients with Major Depressive Disorder Treated with Trazodone. Front Psychiatry 2023; 14:1127511. [PMID: 37032913 PMCID: PMC10080076 DOI: 10.3389/fpsyt.2023.1127511] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 02/24/2023] [Indexed: 04/11/2023] Open
Abstract
This 8-week study was designed to explore any correlation between a passive data collection approach using a wearable device (i.e., digital phenotyping), active data collection (patient's questionnaires), and a traditional clinical evaluation [Montgomery-Åsberg Depression Rating Scale (MADRS)] in patients with major depressive disorder (MDD) treated with trazodone once a day (OAD). Overall, 11 out of 30 planned patients were enrolled. Passive parameters measured by the wearable device included number of steps, distance walked, calories burned, and sleep quality. A relationship between the sleep score (derived from passively measured data) and MADRS score was observed, as was a relationship between data collected actively (assessing depression, sleep, anxiety, and warning signs) and MADRS score. Despite the limited sample size, the efficacy and safety results were consistent with those previously reported for trazodone. The small population in this study limits the conclusions that can be drawn about the correlation between the digital phenotyping approach and traditional clinical evaluation; however, the positive trends observed suggest the need to increase synergies among clinicians, patients, and researchers to overcome the cultural barriers toward implementation of digital tools in the clinical setting. This study is a step toward the use of digital data in monitoring symptoms of depression, and the preliminary data obtained encourage further investigations of a larger population of patients monitored over a longer period of time.
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Affiliation(s)
- Jan Čermák
- Psychiatrie Říčany s.r.o., Říčany, Czechia
| | | | - Alexander Nawka
- Institut Neuropsychiatrické Péče (INEP) (Psychiatric Outpatient Clinic), Praha, Czechia
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Piccinino D, Capecchi E, Trifero V, Tomaino E, Marconi C, Del Giudice A, Galantini L, Poponi S, Ruggieri A, Saladino R. Lignin Nanoparticles as Sustainable Photoprotective Carriers for Sunscreen Filters. ACS Omega 2022; 7:37070-37077. [PMID: 36312404 PMCID: PMC9608391 DOI: 10.1021/acsomega.2c02133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 08/09/2022] [Indexed: 06/01/2023]
Abstract
Sunscreen filters may be degraded after prolonged UV exposure with loss of their shielding property and generation of harmful radical species. They are contained in cosmetic formulations in high concentrations, so the improvement of photostability is of relevance for safety concerns. We report here that lignin nanoparticles are sustainable carriers and photostabilizers of two common UV chemical filters, namely, avobenzone and octyl methoxycinnamate. These compounds have been encapsulated by nanoprecipitation into kraft lignin nanoparticles using eco-certified dimethyl isosorbide as a primary solvent and deionized water as an antisolvent. After the encapsulation, both compounds significantly prolonged the half-life stability against UV irradiation. The stabilizing properties of lignin nanoparticles were further improved by coencapsulation of avobenzone and octyl methoxycinnamate with hydroxytyrosol, a natural phenol with antioxidant activity recovered from olive oil wastes and characterized by skin regenerative properties.
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Affiliation(s)
- Davide Piccinino
- Department
of Ecological and Biological Sciences, University
of Tuscia, Via San Camillo de Lellis, 01100Viterbo, Italy
| | - Eliana Capecchi
- Department
of Ecological and Biological Sciences, University
of Tuscia, Via San Camillo de Lellis, 01100Viterbo, Italy
| | - Valentina Trifero
- Department
of Ecological and Biological Sciences, University
of Tuscia, Via San Camillo de Lellis, 01100Viterbo, Italy
| | - Elisabetta Tomaino
- Department
of Ecological and Biological Sciences, University
of Tuscia, Via San Camillo de Lellis, 01100Viterbo, Italy
| | - Claudia Marconi
- Department
of Chemistry, University of Rome La Sapienza, P.le A. Moro 5, 00185Rome, Italy
| | - Alessandra Del Giudice
- Department
of Chemistry, University of Rome La Sapienza, P.le A. Moro 5, 00185Rome, Italy
| | - Luciano Galantini
- Department
of Chemistry, University of Rome La Sapienza, P.le A. Moro 5, 00185Rome, Italy
| | - Stefano Poponi
- Department
of Economics, Engineering, Society, and Enterprise, University of Tuscia, Via del Paradiso 47, 01100Viterbo, Italy
| | - Alessandro Ruggieri
- Department
of Economics, Engineering, Society, and Enterprise, University of Tuscia, Via del Paradiso 47, 01100Viterbo, Italy
| | - Raffaele Saladino
- Department
of Ecological and Biological Sciences, University
of Tuscia, Via San Camillo de Lellis, 01100Viterbo, Italy
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Maggi L, Gibertini S, Iannibelli E, Gallone A, Bragato C, Bonanno S, Blasevich F, Mantegazza R, Mora M, Ruggieri A. VP.67 A novel adult-onset vacuolar myopathy caused by a large expansion of the PLIN4 gene- clinical, histological and imaging data. Neuromuscul Disord 2022. [DOI: 10.1016/j.nmd.2022.07.289] [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: 11/06/2022]
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Grossi AP, Ruggieri A, Vecchio AD, Comandini A, Corio L, Calisti F, Loreto GD, Almirante B. Skin infections in Europe: a retrospective study of incidence, patient characteristics and practice patterns. Int J Antimicrob Agents 2022; 60:106637. [PMID: 35820533 DOI: 10.1016/j.ijantimicag.2022.106637] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 04/06/2022] [Accepted: 07/05/2022] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Acute bacterial skin and skin structure infections (ABSSSIs) are associated with considerable morbidity and a heavy healthcare burden. The primary objectives of this two-phase study were to determine the incidence of skin infections and ABSSSIs in hospitalized patients (Phase A), and to describe the characteristics and treatment of hospitalized patients with ABSSSIs (Phase B). METHODS This non-interventional, retrospective study was based on data collected from adult patients hospitalized for skin infections in six European countries (Czech Republic, Greece, Italy, Portugal, Russia and Spain) between January 2014 and June 2016. RESULTS In Phase A, the total hospital incidence of skin infections and ABSSSIs was 2.4 and 1.8 per 1000 patient-days, respectively. Overall, 73.6% of 50,469 hospitalizations for skin infections were for ABSSSIs. Among the 750 patients with ABSSSIs included in Phase B, Gram-positive bacteria were isolated in 24.9%, most commonly methicillin-susceptible Staphylococcus aureus (11.5%). Empirical therapy was administered to 98.1% of patients, most often with a penicillin, with or without a β-lactamase inhibitor (42.1%). Complete cure was achieved in 46.5% and 34.5% of patients after initial treatment and treatment modification, respectively. Overall, 22.7% of patients had at least one additional ABSSSI-related hospitalization, 47.1% of patients visited the emergency room, 19.3% of patients visited primary care clinics, and 34.8% of patients visited a specialist. CONCLUSION Treatment of ABSSSIs in Europe is associated with a heavy healthcare burden, highlighting the need for optimized management strategies that may reduce healthcare utilization.
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Affiliation(s)
- Antonio Paolo Grossi
- Department of Medicine and Surgery, Section of Infectious Diseases, University of Insubria, Varese, Italy
| | | | | | | | | | | | | | - Benito Almirante
- Infectious Diseases Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
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Guglielmetti L, Aschieri D, Kontsevaya I, Calabrese F, Donisi A, Faggi A, Ferrante P, Fronti E, Gerna L, Leoni MC, Paolillo F, Ratti G, Ruggieri A, Sacchini D, Scotti M, Valdatta C, Stabile M, Taliani G, Codeluppi M. Treatment for COVID-19-a cohort study from Northern Italy. Sci Rep 2021; 11:20964. [PMID: 34697322 PMCID: PMC8545945 DOI: 10.1038/s41598-021-00243-4] [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] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 08/31/2021] [Indexed: 11/30/2022] Open
Abstract
Multicentre, retrospective cohort study with multivariable Cox proportional-hazards modelling and survival-time inverse-probability-weighting, evaluating the impact of different treatments on survival of proven COVID-19 patients admitted to two Hospitals in the province of Piacenza, Italy. Use of tocilizumab and of high doses of low molecular weight heparin, but not of antivirals (either alone or in combination), azithromycin, and any corticosteroid, was independently associated with lower mortality. Our results support further clinical evaluation of high doses of low molecular weight heparin and tocilizumab as COVID-19 therapeutics.
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Affiliation(s)
- Lorenzo Guglielmetti
- Sorbonne Université, INSERM, U1135, Centre d'Immunologie et des Maladies Infectieuses, Cimi-Paris, équipe 13, Paris, France.
- APHP, Groupe Hospitalier Universitaire Sorbonne Université, Hôpital Pitié-Salpêtrière, Centre National de Référence Des Mycobactéries Et de La Résistance Des Mycobactéries Aux Antituberculeux, Paris, France.
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy.
| | | | - Irina Kontsevaya
- Research Center Borstel, Borstel, Germany
- German Center for Infection Research, Hamburg-Lübeck-Borstel-Riems, Borstel, Germany
- International Health/Infectious Diseases, University of Lübeck, Lübeck, Germany
| | | | - Alessandra Donisi
- Migration Health Unit, Primary Health Care Department, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | - Alberto Faggi
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | - Patrizia Ferrante
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
- Institute for Cross-Disciplinary Physics and Complex Systems IFISC (UIB-CSIC), Campus Universitat Illes Balears, 07122, Palma de Mallorca, Spain
| | - Elisa Fronti
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | - Laura Gerna
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | | | - Franco Paolillo
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | - Giovanna Ratti
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | | | - Daria Sacchini
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | - Marta Scotti
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | - Caterina Valdatta
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
| | - Marco Stabile
- Plastic Surgery Unit, Castel San Giovanni Hospital, Piacenza, Italy
| | - Gloria Taliani
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
- Infectious and Tropical Disease Unit, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
- Anti-COVID Task Force of the Italian Civil Protection, Rome, Italy
| | - Mauro Codeluppi
- Infectious Diseases Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy
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Bradley J, Ruggieri A, Spencer AH. Twin Peaks: Covid-19 and the labor market. Eur Econ Rev 2021; 138:103828. [PMID: 34518708 PMCID: PMC8425362 DOI: 10.1016/j.euroecorev.2021.103828] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 06/07/2021] [Accepted: 07/02/2021] [Indexed: 05/19/2023]
Abstract
This paper develops a choice-theoretic equilibrium model of the labor market in the presence of a pandemic. It includes heterogeneity in productivity, age and the ability to work from home. Worker and firm behavior changes in the presence of the virus, which itself has equilibrium consequences for the infection rate. The model is calibrated to the UK and counterfactual lockdown measures are evaluated. We find a different response in both the evolution of the virus and the labor market with different lockdown policies. A laissez-faire approach results in lives lost and acts as negative shock to the economy. A lockdown policy, absent any other intervention, will reduce the lives lost but increase the economic burden. Consistent with recent evidence, we find that the economic costs from lockdown are most felt by those earning the least. Finally, we introduce a job retention scheme as implemented by the UK Government and find that it spreads the economic hardship more equitably.
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Affiliation(s)
- Jake Bradley
- University of Nottingham, United Kingdom of Great Britain and Northern Ireland
| | - Alessandro Ruggieri
- University of Nottingham, United Kingdom of Great Britain and Northern Ireland
| | - Adam Hal Spencer
- University of Nottingham, United Kingdom of Great Britain and Northern Ireland
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10
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Taliani G, Follini E, Guglielmetti L, Bernuzzi P, Faggi A, Ferrante P, Fronti E, Gerna L, Leoni MC, Paolillo F, Ratti G, Ruggieri A, Valdatta C, Donisi A, Zangrandi A, Pochintesta L, Moroni C, Sacchini D, Vallisa D, Codeluppi M. Case Report: B Lymphocyte Disorders Under COVID-19 Inflammatory Pressure. Front Oncol 2021; 10:582901. [PMID: 33585201 PMCID: PMC7874205 DOI: 10.3389/fonc.2020.582901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/13/2020] [Accepted: 11/23/2020] [Indexed: 12/16/2022] Open
Abstract
Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infects humans through the angiotensin converting enzyme-2 (ACE-2) receptor expressed on many cells, including lymphocytes. In Covid-19 patients IL-6 is overexpressed, and hyperactivated plasmacytoid lymphocytes are detected in peripheral blood film. We hypothesize that, due to the unpredictable interaction between the new virus and the B cell lineage of infected patients, a cascade of out of control events can ensue, capable of determining unexpected pathologic disorders involving such lineage. Here we report two cases of autoimmune hemolytic anemia (AIHA) and two cases of B-cell hematological malignancies developed or reactivated during acute SARS-CoV-2 infection. The temporal relationship of the events may suggest a potential causal relationship between SARS-CoV-2 infection and the hematopoietic disorders. We suggest that special attention should be paid to COVID-19 patients with underlining B cell lineage disorders.
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Affiliation(s)
- Gloria Taliani
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy.,Anti-COVID-19 Task Force of the Italian Civil Protection, Rome, Italy.,Infectious and Tropical Disease Unit, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Elena Follini
- Hematology and Bone Marrow Transplant (BMT) Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Lorenzo Guglielmetti
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy.,Sorbonne Université, INSERM, U1135, Centre d'Immunologie et des Maladies Infectieuses, Cimi-Paris, équipe 13, Paris, France.,APHP, Groupe Hospitalier Universitaire Sorbonne Université, Hôpital Pitié-Salpêtrière, Centre National de Référence des Mycobactéries et de la Résistance des Mycobactéries aux Antituberculeux, Paris, France
| | - Patrizia Bernuzzi
- Hematology and Bone Marrow Transplant (BMT) Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Alberto Faggi
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Patrizia Ferrante
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy.,Institute for Cross-Disciplinary Physics and Complex Systems IFISC (UIB-CSIC), Campus Universitat Illes Balears, Palma de Mallorca, Spain
| | - Elisa Fronti
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Laura Gerna
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Maria Cristina Leoni
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Franco Paolillo
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Giovanna Ratti
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Alessandro Ruggieri
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Caterina Valdatta
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Alessandra Donisi
- Migration Health Unit, Primary Health Care Department, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Adriano Zangrandi
- Pathology Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Lara Pochintesta
- Hematology and Bone Marrow Transplant (BMT) Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Carlo Moroni
- Hematology and Bone Marrow Transplant (BMT) Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Daria Sacchini
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Daniele Vallisa
- Hematology and Bone Marrow Transplant (BMT) Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
| | - Mauro Codeluppi
- Infectious Diseases Unit, "Guglielmo da Saliceto" Piacenza Hospital, Piacenza, Italy
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Guglielmetti L, Kontsevaya I, Leoni MC, Ferrante P, Fronti E, Gerna L, Valdatta C, Donisi A, Faggi A, Paolillo F, Ratti G, Ruggieri A, Scotti M, Sacchini D, Taliani G, Codeluppi M. Severe COVID-19 pneumonia in Piacenza, Italy - A cohort study of the first pandemic wave. J Infect Public Health 2020; 14:263-270. [PMID: 33497876 PMCID: PMC7723761 DOI: 10.1016/j.jiph.2020.11.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 08/11/2020] [Revised: 11/13/2020] [Accepted: 11/18/2020] [Indexed: 01/08/2023] Open
Abstract
Background Piacenza is the closest city to the first coronavirus disease 2019 (COVID-19) cluster in Italy and has the highest national COVID-19 death rates per population. The objective of this study is to present characteristics and outcomes of patients admitted to medical departments of the Hospital of Piacenza during the first wave of the epidemic. Methods A total of 218 patients with confirmed or suspect COVID-19 and severe pneumonia were included from February 21st to May 15th, 2020. Routinely-collected clinical and laboratory data were retrospectively retrieved from electronic medical files. A Cox proportional-hazards model was fit to assess the association of treatment and other variables with death. Results Median age of patients was 68 years; 150 patients (69%) had comorbidities, mainly hypertension (107, 49%). Overall, 185 (85%) patients had acute respiratory distress syndrome (ARDS) on admission, including 103 (47%) with moderate or severe ARDS. Chest computed tomography scan showed bilateral disease in 201 (98%) and extensive lung involvement in 79 (50%) patients. Most patients received antiviral treatment (187, 86%) and corticosteroids (134, 61%). All patients received respiratory support and 64 (29%) were admitted to intensive care unit. As of June 30th, 100 patients (46%) died, 109 patients (50%) were discharged, and 9 patients (4%) were still hospitalized. In multivariable Cox analysis, age above 65 years, having more than one comorbidity, severe ARDS, low platelet counts, and high LDH levels at admission were associated with mortality, while having diarrhea at admission was associated with survival. The use of antivirals or corticosteroids was not associated with survival. Conclusions Overall case fatality rates were high and associated with comorbidities, extensive lung involvement, ARDS at admission, and advanced age. The use of antivirals was not associated with increased survival.
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Affiliation(s)
- Lorenzo Guglielmetti
- Sorbonne Université, INSERM, U1135, Centre d'Immunologie et des Maladies Infectieuses, Cimi-Paris, équipe 13, Paris, France; APHP, Groupe Hospitalier Universitaire Sorbonne Université, Hôpital Pitié-Salpêtrière, Centre National de Référence des Mycobactéries et de la Résistance des Mycobactéries aux Antituberculeux, Paris, France; Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy.
| | - Irina Kontsevaya
- Research Center Borstel, Borstel, Germany; German Center for Infection Research, Hamburg-Lübeck-Borstel-Riems, Borstel, Germany; International Health/Infectious Diseases, University of Lübeck, Lübeck, Germany.
| | - Maria C Leoni
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy.
| | - Patrizia Ferrante
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy; Institute for Cross-Disciplinary Physics and Complex Systems IFISC (UIB-CSIC), Campus Universitat Illes Balears, E-07122 Palma de Mallorca, Spain.
| | - Elisa Fronti
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy.
| | - Laura Gerna
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy.
| | | | - Alessandra Donisi
- Migration Health Unit, Primary Health Care Department, "Guglielmo da Saliceto" Hospital, Piacenza, Italy.
| | - Alberto Faggi
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy.
| | - Franco Paolillo
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy.
| | - Giovanna Ratti
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy.
| | | | - Marta Scotti
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy.
| | - Daria Sacchini
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy.
| | - Gloria Taliani
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy; Infectious and Tropical Disease Unit, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy; Anti-COVID Task Force of the Italian Civil Protection.
| | - Mauro Codeluppi
- Infectious Diseases Unit, Piacenza Hospital, Piacenza, Italy.
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Quintavalle G, Coppola A, Ruggieri A, Rivolta GF, Fronti E, Giangregorio F, Michieletti E, Tagliaferri A. Severe bleeding in a patient with factor XIII deficiency and COVID-19. Haemophilia 2020; 27:e140-e142. [PMID: 32516478 PMCID: PMC7300584 DOI: 10.1111/hae.14088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 05/20/2020] [Accepted: 06/08/2020] [Indexed: 01/14/2023]
Affiliation(s)
- Gabriele Quintavalle
- Regional Reference Centre for Inherited Bleeding Disorders, Parma University Hospital, Parma, Italy
| | - Antonio Coppola
- Regional Reference Centre for Inherited Bleeding Disorders, Parma University Hospital, Parma, Italy
| | | | - Gianna Franca Rivolta
- Regional Reference Centre for Inherited Bleeding Disorders, Parma University Hospital, Parma, Italy
| | - Elisa Fronti
- Division of Infectious Disease, G. da Saliceto Hospital, Piacenza, Italy
| | | | | | - Annarita Tagliaferri
- Regional Reference Centre for Inherited Bleeding Disorders, Parma University Hospital, Parma, Italy
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Longhini V, Cardoso A, Berça A, Boddey R, van Cleef F, Reis R, Ruggieri A. PSXI-39 Effect of legume inclusion and nitrogen fertilization on ammonia volatilization from cattle excreta in tropical grassland. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- V Longhini
- Sao Paulo State University,Jaboticabal, Brazil; FAPESP, Sao Paulo, Brazil
| | - A Cardoso
- Sao Paulo State University,Jaboticabal, Brazil
| | - A Berça
- Sao Paulo State University,Jaboticabal, Brazil
| | - R Boddey
- Embrapa Agrobiologia, Seropédica, Brazil, Seropédica, Brazil
| | - F van Cleef
- University of Florida, North Florida Research and Education Center,Marianna, United States,Gainesville, FL, United States
| | - R Reis
- Sao Paulo State University,Jaboticabal, Brazil
| | - A Ruggieri
- Sao Paulo State University,Jaboticabal, Brazil
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Longhini V, Cardoso A, Berça A, Boddey R, Reis R, van Cleef F, Ruggieri A. PSXI-38 Nitrous oxide emissions from excreta of cattle grazed in mixed, single or fertilized pastures of Marandu-grass. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- V Longhini
- Sao Paulo State University,Jaboticabal, Brazil; FAPESP, Sao Paulo, Brazil
| | - A Cardoso
- Sao Paulo State University,Jaboticabal, Brazil
| | - A Berça
- Sao Paulo State University,Jaboticabal, Brazil
| | - R Boddey
- Embrapa Agrobiologia,Seropédica, Brazil
| | - R Reis
- Sao Paulo State University,Jaboticabal, Brazil
| | - F van Cleef
- University of Florida, North Florida Research and Education Center,Marianna, United States,Gainesville, FL, United States
| | - A Ruggieri
- Sao Paulo State University,Jaboticabal, Brazil
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Poponi S, Braccini AM, Ruggieri A. Key Success Factors Positively Affecting Organizational Performance of Academic Spin-Offs. Int J Innovation Technol Management 2017. [DOI: 10.1142/s0219877017500262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Universities create academic spin-offs (ASOs) as a strategy to market innovations produced through research. By their nature, ASOs are exposed to risky endeavors and often fail in achieving an adequate level of performance. In this paper, we focus on performance generation in ASOS. By way of a literature review, we contribute with the identification of nine factors associated with positive performance in ASOS: championed start-up, heterogeneity of founders’ skills, access to funding, environmental wealth, networking capital, relative size, trustworthiness, innovativeness and motivation for venturing. The paper describes and discusses the performance factors and suggests implications for research to further study performance in ASOS.
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Affiliation(s)
- Stefano Poponi
- Department of Economics and Entrepreneurship, University of Tuscia, Viterbo, Italy
| | | | - Alessandro Ruggieri
- Department of Economics and Entrepreneurship, University of Tuscia, Viterbo, Italy
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Zanotti S, Gibertini S, Blasevich F, Saredi S, Bragato C, Ruggieri A, Mantegazza R, Maggi L, Mora M. Potential role of exosomes in skeletal muscle fibrosis. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.275] [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: 11/25/2022]
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Abstract
Purpose
Satisfaction in the tourism sector is a highly sensitive subject, and customer satisfaction (CS) has a significant impact on the choice of destinations made by tourists and on the decision to recommend them to friends or acquaintances. The purpose of this paper is to give empirical evidence of the dimensions of service quality (technical, functional and company image (CI)) and their connections in the sector of thermal tourism. It also aims at investigating the CI, seeking to understand whether some of the technical and functional service quality variables play a role in determining it.
Design/methodology/approach
An empirical survey was conducted by administering a structured research questionnaire in order to collect all necessary data, which was then elaborated to test the hypotheses using factor and multiple regression analyses.
Findings
The results of the survey confirm the direct impact of service quality dimensions (technical, functional and CI) on CS also in the thermal sector when considered individually. Moreover, when the CI was analyzed further, relational quality was found to be dependent on thermal employees’ capabilities, abilities, trustworthiness, availability, etc. Finally, when considered together, functional service quality and CI have a stronger effect on CS than technical service quality.
Originality/value
The originality of the present research relies on the following: a further contribution to the so-called “European perspective” of service quality; the study of service quality dimensions (technical, functional and CI) in the thermal sector; and evidencing the link between thermal employee characteristics and the relational quality factor of the CI, demonstrating that many aspects of this construct need further empirical investigation, in the wellness sector.
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Aquilani B, Silvestri C, Ruggieri A, Gatti C. A systematic literature review on total quality management critical success factors and the identification of new avenues of research. TQM 2017. [DOI: 10.1108/tqm-01-2016-0003] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
The purpose of this paper is to present a systematic literature review to identify new avenues of research in line with the ongoing changes in quality and management required to firms, especially regarding customers.
Design/methodology/approach
This study uses a systematic review of the literature contained in the three databases Ebsco, JSTOR, and Springerlink and on the search engine Google Scholar.
Findings
An analysis of the literature identifies three different clusters of papers: “identification” papers, which show that customer focus has gained importance in recent times; “implementation” papers, which highlight that a general or shared model or scale to successfully implement total quality management (TQM) does not yet exist; and “impact-on-performance” papers, which show that few studies have considered the relationship between TQM and the issues of both marketing and performance, underlining the most significant gap in the TQM literature.
Research limitations/implications
This study is limited by the small number of databases and search engines used and by the restricted number of keywords used in searching these sources.
Practical implications
This work highlights a gap in the existing research and thus an incomplete consideration of the interplay between management, marketing, and quality issues, all centered on customers and other stakeholders. Researchers and firms are thus advised to adopt a wider view that considers the role of the quality process to support the firm’s engagement of customers in activities that enhance both the customer role and customer satisfaction.
Originality/value
This study uses a systematic literature review to review all critical factors of TQM and identifies new research avenues and different approaches to implementing TQM, focusing on the central role that customers play in achieving firm success.
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Gribaudo S, Monetti U, Madon E, Richetto V, Tessa M, Moretto F, Ruggieri A, Cosma S, Danese S, Urgesi A. PV-0034: HDR BT alone in endometrial cancer: up-date of Piedmont experience in 18 years (71 patients). Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31283-x] [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: 10/21/2022]
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Ruggieri A, Ramachandran N, Wang P, Haan E, Kneebone C, Manavis J, Morandi L, Moroni I, Blumbergs P, Mora M, Minassian B. Non-coding VMA21 deletions cause X-linked Myopathy with Excessive Autophagy. Neuromuscul Disord 2015; 25:207-11. [DOI: 10.1016/j.nmd.2014.11.014] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 11/11/2014] [Accepted: 11/20/2014] [Indexed: 02/07/2023]
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De Benedetto M, Passali D, Tomacelli G, Ruggieri A, Rosignoli MT, Picollo R, Bellussi L, Dionisio P. Penetration of prulifloxacin into sinus mucosa of patients undergoing paranasal sinus elective endoscopic surgery. J Chemother 2012; 24:26-31. [PMID: 22546721 DOI: 10.1179/1120009x12z.0000000009] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The aim of this study was to assess the concentration of ulifloxacin, the active metabolite of prulifloxacin, in sinuses mucosa and plasma of patients with chronic rhinosinusitis, requiring sinus elective endoscopic surgery. Thirty-nine patients (30 males, 9 females; age range 22-77 years) with chronic sinusitis were enrolled, 35 were treated with the investigational medication. Samples from four untreated patients were used to validate the analytical method, while four treated patients dropped out before surgery. One 600 mg prulifloxacin tablet once daily was administered for 5 days before surgery. The last dosing was scheduled from 2 to 12 hours from tissue and plasma sampling. In each patient, two samples of paranasal sinus mucosa (from ethmoid and turbinate, respectively) and one blood sample were collected. Concentrations of ulifloxacin in plasma and sinuses mucosa were measured using validated bioanalytical LC/MS/MS methods. Individual and mean ulifloxacin concentrations in tissues were always higher than the relevant plasma levels. The highest concentrations were observed between 2.5 and 4.5 hours after the last dosing in all districts. The mean tissue/plasma ratios were 2.5 and 3.0 for ethmoid and turbinate, respectively. Data expressed as Area Under the Curves (AUC±SD) showed that ulifloxacin concentrations in the ethmoid were slightly higher (18.68±6.48 μg/g*h) than in turbinate (15.00±2.89 μg/g*h), and definitely higher than in plasma (6.32±1.14 μg/ml*h). The AUC ratios between tissues and plasma were 3.0 for ethmoides and 2.4 for turbinates. One patient reported two treatment-related episodes of diarrhea, which spontaneously resolved after the drug suspension. Results from this study seem to suggest that prulifloxacin showed good distribution in sinus tissues, where it reaches concentrations significantly higher than in plasma. These findings strongly call for confirmatory clinical trials in patients with bacterial rhinosinusitis.
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Saredi S, Ardissone A, Ruggieri A, Mottarelli E, Farina L, Rinaldi R, Silvestri E, Gandioli C, D'Arrigo S, Salerno F, Morandi L, Grammatico P, Pantaleoni C, Moroni I, Mora M. Novel POMGNT1 point mutations and intragenic rearrangements associated with muscle-eye-brain disease. J Neurol Sci 2012; 318:45-50. [PMID: 22554691 PMCID: PMC3405532 DOI: 10.1016/j.jns.2012.04.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2012] [Revised: 03/05/2012] [Accepted: 04/05/2012] [Indexed: 11/17/2022]
Abstract
Congenital muscular dystrophies due to defects in genes encoding proteins involved in α-dystroglycan (α-DG) glycosylation are a heterogeneous group of muscle disorders variably associated with central nervous system and eye abnormalities. One of the more severe is muscle-eye-brain disease (MEB). Mutations in genes coding for proven or putative glycosyltransferases (POMT1, POMT2, POMGnT1, fukutin, FKRP, and LARGE), the DPM3 gene encoding a DOL-P-Man synthase subunit, and the DAG1 gene encoding α-dystroglycan, have been associated with altered α-DG glycosylation. We report new POMGnT1 mutations and evaluate protein expression in 3 patients and 2 foetuses with variably severe MEB features. We identify two new point mutations (c.643 C > T, c.1863delC), one new intragenic rearrangement (deletion of exons 2–8), and a new intron retention (between exons 21 and 22) resulting from a known point mutation c.1895 + 1 G > T. Our study provides further evidence that rearrangements of the POMGnT1 gene are relatively common. Importantly, if heterozygous, they can be missed on standard genomic DNA sequencing. POMGNT1 protein analysis in 3 patients showed that the severity of the phenotype does not correlate with protein expression. Cerebral MRI is important for identifying MEB and α-dystroglycanopathy phenotypes in children and foetuses, and hence for directing the genetic analysis.
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Affiliation(s)
- S Saredi
- Division of Neuromuscular Diseases and Neuroimmunology, Foundation Neurological Institute C. Besta, Milano, Italy
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Scardina GA, Ruggieri A, Provenzano F, Messina P. The effect of acupuncture on oral microcirculation in healthy volunteers: an exploratory study. Acupunct Med 2009; 27:114-7. [PMID: 19734381 DOI: 10.1136/aim.2009.000679] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND acupuncture is a therapeutic technique currently used in the treatment of many pathologies. The aim of this study is to evaluate the potential effect of acupuncture on "in vivo" variations in oral microcirculation in healthy subjects. METHODS an exploratory study was conducted on 40 healthy subjects: 20 cases (mean 55.90, SD 16.04) and 20 controls (mean 51, SD 11.91). Videocapillaroscopy was used to detect variations in oral microcirculation. This method permits an accurate and non-invasive in vivo study of the capillaries of the oral mucous. The site selected for this pilot study is the lower lip since it is the simplest to investigate and is more readily accessible. Assessments were carried out in three phases: t(0) before the application of the needles; t(1) one minute after the application; t(2) five minutes after the application; similar time points were used for the control group. Data were compared using the Mann-Whitney test. RESULTS the study showed characteristic changes in oral microcirculation induced by acupuncture. The tortuousness of capillary loops and in the diameter of the afferent loop changed significantly (p<0.05) over time in the acupuncture group but not in the controls. CONCLUSIONS the findings lend support to our expectation that acupuncture may generate significant variations in oral microcirculation in healthy adults. Further research is needed to confirm these findings and evaluate the therapeutic role of acupuncture in oral pathologies.
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Saredi S, Mottarelli E, Ruggieri A, Ardissone A, Zanotti S, Farina L, Morandi L, Moroni I, Mora M. EM.P.2.08 Fukutin gene mutations in an Italian patient with early onset muscular dystrophy but no central nervous system involvement. Neuromuscul Disord 2009. [DOI: 10.1016/j.nmd.2009.06.037] [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: 10/20/2022]
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Mercuri E, Messina S, Bruno C, Mora M, Pegoraro E, Comi GP, D'Amico A, Aiello C, Biancheri R, Berardinelli A, Boffi P, Cassandrini D, Laverda A, Moggio M, Morandi L, Moroni I, Pane M, Pezzani R, Pichiecchio A, Pini A, Minetti C, Mongini T, Mottarelli E, Ricci E, Ruggieri A, Saredi S, Scuderi C, Tessa A, Toscano A, Tortorella G, Trevisan CP, Uggetti C, Vasco G, Santorelli FM, Bertini E. Congenital muscular dystrophies with defective glycosylation of dystroglycan: a population study. Neurology 2009; 72:1802-9. [PMID: 19299310 DOI: 10.1212/01.wnl.0000346518.68110.60] [Citation(s) in RCA: 115] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
BACKGROUND Congenital muscular dystrophies (CMD) with reduced glycosylation of alpha-dystroglycan (alpha-DG) are a heterogeneous group of conditions associated with mutations in six genes encoding proven or putative glycosyltransferases. OBJECTIVES The aim of the study was to establish the prevalence of mutations in the six genes in the Italian population and the spectrum of clinical and brain MRI findings. METHODS As part of a multicentric study involving all the tertiary neuromuscular centers in Italy, FKRP, POMT1, POMT2, POMGnT1, fukutin, and LARGE were screened in 81 patients with CMD and alpha-DG reduction on muscle biopsy (n = 76) or with a phenotype suggestive of alpha-dystroglycanopathy but in whom a muscle biopsy was not available for alpha-DG immunostaining (n = 5). RESULTS Homozygous and compound heterozygous mutations were detected in a total of 43/81 patients (53%), and included seven novel variants. Mutations in POMT1 were the most prevalent in our cohort (21%), followed by POMT2 (11%), POMGnT1 (10%), and FKRP (9%). One patient carried two heterozygous mutations in fukutin and one case harbored a new homozygous variant in LARGE. No clear-cut genotype-phenotype correlation could be observed with each gene, resulting in a wide spectrum of clinical phenotypes. The more severe phenotypes, however, appeared to be consistently associated with mutations predicted to result in a severe disruption of the respective genes. CONCLUSIONS Our data broaden the clinical spectrum associated with mutations in glycosyltransferases and provide data on their prevalence in the Italian population.
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Affiliation(s)
- E Mercuri
- Department of Child Neurology, Policlinico Gemelli, Largo Gemelli, 00168 Rome, Italy.
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Scardina GA, Ruggieri A, Messina P, Maresi E. Angiogenesis of Oral Lichen Planus: A possible pathogenetic mechanism. Med Oral Patol Oral Cir Bucal 2009; 14:e558-62. [DOI: 10.4317/medoral.14.e558] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2008] [Accepted: 05/10/2009] [Indexed: 11/05/2022] Open
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Scardina G, Ruggieri A, Messina P. Evaluation of labial microvessels in Sjogren syndrome: A videocapillaroscopic study. Ann Anat 2009; 191:273-9. [DOI: 10.1016/j.aanat.2009.01.001] [Citation(s) in RCA: 4] [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] [Received: 11/20/2008] [Revised: 01/02/2009] [Accepted: 01/29/2009] [Indexed: 11/26/2022]
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Giberti C, Gallo F, Rosignoli MT, Ruggieri A, Barattè S, Picollo R, Dionisio P. Penetration of Orally Administered Prulifloxacin into Human Prostate Tissue. Clin Drug Investig 2009; 29:27-34. [DOI: 10.2165/0044011-200929010-00003] [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: 11/02/2022]
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Scardina GA, Ruggieri A, Messina P. Correlation of "in vivo" microcirculation and degeneration of the basal cells of the epithelium in lingual lichen planus. Indian J Dent Res 2009; 20:407-11. [DOI: 10.4103/0970-9290.59434] [Citation(s) in RCA: 3] [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: 11/04/2022] Open
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Saredi S, Ruggieri A, Pantaleoni C, D’Arrigo S, Mottarelli E, Blasevich F, Morandi L, Moroni I, Mora M. G.P.2.07 Alpha-dystroglycanopathy in an Italian patient due to large intragenic and single nucleotide deletions in the POMGnT1 gene. Neuromuscul Disord 2008. [DOI: 10.1016/j.nmd.2008.06.047] [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: 10/21/2022]
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Moroni I, Saredi S, Ruggieri A, Pantaleoni C, Morandi L, Mora M. G.P.2.03 Clinical and molecular characterization of 12 patients with defective α-dystroglycan glycosylation. Neuromuscul Disord 2008. [DOI: 10.1016/j.nmd.2008.06.043] [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: 10/21/2022]
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Zanotti S, Saredi S, Ruggieri A, Blasevich F, Romaggi S, Morandi L, Mora M. G.P.16.09 Altered expression and modulation of extracellular matrix transcripts and proteins in primary DMD muscle cultures. Neuromuscul Disord 2007. [DOI: 10.1016/j.nmd.2007.06.385] [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: 10/22/2022]
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33
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Inserra G, Barletta R, Santangelo L, Ruggieri A, De Crescenzo I, Carbone U. [Electromagnetic interference of electronic devices in workers with AICD]. G Ital Med Lav Ergon 2007; 29:780-781. [PMID: 18409958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The Implantable Cardioverter Defibrillators and the Pacemakers are devices that produce electric signals and consequently they are touchy to the electromagnetic interferences. This touchiness may cause a temporary or permanent device's malfunction both for short, but of high intensity, and prolonged exposures. Considered the wide diffusion in the job's environments of the technologies based on the electromagnetic waves, the aim of the study is identify the presence of electronic equipment's electromagnetic interferences in AICD bearing workers. The last aim is give to the AICD bearing workers more detailed information about the prevention of inappropriate AICD shocks.
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Affiliation(s)
- G Inserra
- Università degli Studi di Napoli "Federico II", Facoltà di Medicina e Chirurgia Dipartimento di Scienze Mediche Preventive, Sezione Medicina del Lavoro-Policlinico
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Zanotti S, Saredi S, Ruggieri A, Fabbri M, Blasevich F, Romaggi S, Morandi L, Mora M. Altered extracellular matrix transcript expression and protein modulation in primary Duchenne muscular dystrophy myotubes. Matrix Biol 2007; 26:615-24. [PMID: 17662584 DOI: 10.1016/j.matbio.2007.06.004] [Citation(s) in RCA: 65] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2007] [Revised: 06/11/2007] [Accepted: 06/20/2007] [Indexed: 11/19/2022]
Abstract
Extent of muscle fibrosis contributes to disease severity in muscular dystrophies. To investigate whether extracellular matrix (ECM) components contribute to the severe fibrosis observed in Duchenne muscular dystrophy (DMD) skeletal muscle, we quantitated several ECM components (transcripts and proteins) in primary DMD and control myotube cultures. We evaluated the fibrogenic transforming growth factor- beta1 (TGF-beta1); the small pleiotropic proteoglycan decorin, involved in collagen fibrillogenesis and TGF-beta1 modulation; metalloproteinases MMP-2 and MMP-9; tissue inhibitors of metalloproteinase (TIMP) 1, 2 and 3; collagens I and VI; and the tissue factor myostatin that inhibits muscle growth. Dystrophic myotube cultures had significantly lower levels of decorin mRNA, as also observed in DMD muscle biopsies, and significantly higher levels of TGF-beta1, myostatin, and collagens I and VI. MMP-2, TIMP-1 and TIMP-2 transcript levels were also significantly increased in DMD, but MMP-9 and TIMP-3 transcripts were unchanged. By zymography, MMP-2 activity was significantly higher in DMD than control. Protein levels were similar in DMD and controls but myostatin protein was significantly increased in DMD. We have found that transcript expression and protein modulation of several ECM components is altered in DMD muscle cells in vitro, indicating that these cells contribute fundamentally to the pathological process, since the inflammation and degeneration characterizing DMD muscle in vivo are presumably absent in culture. Our findings that myostatin-potent inhibitor of satellite cell activation and muscle renewal--is increased, and that decorin-binder and downregulator of TGFbeta1 and myostatin--is decreased, may have implications for DMD therapy to reduce muscle fibrosis.
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Affiliation(s)
- S Zanotti
- Neuromuscular Diseases and Neuroimmunology Unit, Foundation IRCCS Neurological Institute C. Besta, Milano, Italy
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Gorlero F, Lorenzi P, Rosignoli MT, Picollo R, Ruggieri A, Barattè S, Dionisio P. Penetration of Prulifloxacin into Gynaecological Tissues after Single and Repeated Oral Administrations. Drugs R D 2007; 8:373-81. [DOI: 10.2165/00126839-200708060-00005] [Citation(s) in RCA: 5] [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: 11/02/2022] Open
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Ruggieri A, Di Trani L, Gatto I, Franco M, Vignolo E, Bedini B, Elia G, Buonavoglia C. Canine coronavirus induces apoptosis in cultured cells. Vet Microbiol 2006; 121:64-72. [PMID: 17254720 PMCID: PMC7117493 DOI: 10.1016/j.vetmic.2006.12.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2006] [Revised: 12/01/2006] [Accepted: 12/13/2006] [Indexed: 11/21/2022]
Abstract
Canine coronavirus (CCoV) is widespread in dogs in several countries and causes mild enteric illness evolving to severe enteritis in young pups. In in vitro cultures canine coronaviruses generally induce extensive cell death, however nature of the events leading to cell death remains largely unknown. We analysed the induction of cytopathic effect by CCoV in a canine fibrosarcoma cell line (A-72) in order to characterize the apoptotic effect in homologous cell system. Following CCoV infection A-72 cell line, which is permissive to CCoV, showed reduced growth rate, as detected by MTT assay, a standard colorimetric assay for measuring cellular proliferation, and underwent to apoptotic death. Starting from 24 h after CCoV infection, cells morphology appeared dramatically changed, with cells rounding and detachment from culture surface. Morphologic and biochemical features of apoptosis, such as blebbing of the plasma membrane, translocation of phosphatidilserine to cell surface and annexin V positive staining, nuclear fragmentation, apoptotic bodies formation and DNA laddering, were detected in CCoV-infected cells. Propidium iodide staining of infected culture indicated the appearance of hypodiploid DNA peak corresponding to apoptotic cell population. Commonly to other animal coronavirus infection caspase-3 is likely to contribute to the execution phase of apoptosis induced by CCoV in A-72 cells since we found activation of enzymatic activity as well as procaspase-3 activating cleavage. Apoptotic death of infected cells is detrimental as it causes cell and tissue destruction as well as inflammatory responses. Therefore in the case of CCoV associated gastroenteritis, apoptosis of epithelial mucosa cells may be responsible for pathology induced by CCoV infection.
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Affiliation(s)
- A Ruggieri
- Department of Infectious, Parasitic and Immune-mediated Diseases, Istituto Superiore Sanità, Viale Regina Elena 299, 00161 Rome, Italy
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Ancarani F, Angeli E, Antinori A, Antonucci G, Bonasso M, Bruno R, Capobianchi MR, Cargnel A, Cozzi-Lepri A, Monforte AD, Cingolani A, Galli M, Orofino GC, Girardi E, Marino N, Bongiovanni M, Morsica G, Narciso P, Pastecchia C, Pizzaferri P, Puoti M, Santantonio T, Verucchi G, Montroni M, Scalise G, Braschi MC, Maracci M, Tirelli U, Cinelli R, Pastore G, Ladisa N, Minafra G, Suter F, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Torti C, Minardi C, Bertelli D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Caputo SL, Angarano G, Grisorio B, Saracino A, Ferrara S, Grima P, Tundo P, Pagano G, Cassola G, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, Monforte AD, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo CM, Piazza M, De Marco M, Viglietti R, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Baldelli F, Tinca M, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, De Stefano C, La Gala A, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Cauda R, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Di Giambenedetti S, Zaccarelli M, Acinapura R, De Longis P, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Resta F, Loso K, Caramello P, Sinicco A, Soranzo ML, Orofino G, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Lepri AC, Solmone M, Girardi E, Lalle E, Abbate I, Monforte AD, Cozzi-Lepri A, Alessandrini A, Piscopo R, Ebo F, Cosco L, Antonucci G, Ippolito G, Capobianchi MR. Evolution of HVR-1 Quasispecies after 1-Year Treatment in HIV/HCV-Coinfected Patients According to the Pattern of Response to Highly Active Antiretroviral Therapy. Antivir Ther 2006. [DOI: 10.1177/135965350601100102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hepatitis C virus (HCV) variability is mainly attributed to the ability of the virus to respond to host immune pressure, acting as a driving force for the evolution of quasispecies. This study was aimed at studying the changes in HVR-1 heterogeneity and the evolution of HCV quasispecies in HIV/HCV-coinfected patients according to the pattern of response to highly active antiretroviral therapy (HAART). Sixteen HIV/HCV-coinfected patients harbouring HCV genotype 1 and who had been on HAART for at least 1 year, 8 showing increasing CD4+T-cell counts (immunological responders) and 8 showing a stable or decreasing CD4+ T-cell counts (immunological non-responders), were selected from a prospective cohort study. After 1 year of HAART, 11 patients showed HIV viral load <2.6 log10 cp/ml (virological responders), and 5 showed HIV viral load above this value (virological non-responders). Plasma samples, collected before starting therapy and after 1 year of HAART, underwent clonal sequence analysis for HVR-1 region of HCV. Non-synonymous/synonymous substitutions ratio (Ka/Ks), aminoacidic complexity (normalized Shannon entropy) and diversity (p-distance), were considered as parameters of quasispecies heterogeneity. After 1 year of HAART, heterogeneity of HVR-1 quasispecies significantly decreased in virological non-responders, whereas the heterogeneity tended to increase in virological responders. The differences in the evolution were less stringent, when considering immunological response. On the other hand, profound qualitative modifications of HVR-1 quasispecies were observed only in patients with both immunological and virological HAART response. On the whole, these findings suggest that, in patients undergoing HAART, the extent of HCV variability and the evolution of HVR-1 quasispecies is influenced by the pattern of response to antiretroviral therapy.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Enrico Girardi
- National Institute of Infectious Diseases “L. Spallanzani”, Rome
| | - Eleonora Lalle
- National Institute of Infectious Diseases “L. Spallanzani”, Rome
| | - Isabella Abbate
- National Institute of Infectious Diseases “L. Spallanzani”, Rome
| | | | - Alessandro Cozzi-Lepri
- Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London
| | | | - Rita Piscopo
- Department of Infectious Diseases, Galliera Hospital, Genova
| | - Francesca Ebo
- Department of Infectious Diseases, Hosp Civile San Giovanni e Paolo, Venezia
| | - Lucio Cosco
- Department of Infectious Diseases, A. Pugliesi Catanzaro
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Ruggieri A, Franco M, Gatto I, Harada T, Miyamura T, Kumar A, Rapicetta M. P.210 Modulation of RANTES expression by HCV core protein in liver derived cell lines. J Clin Virol 2006. [DOI: 10.1016/s1386-6532(06)80390-2] [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: 10/24/2022]
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Cheynet V, Ruggieri A, Oriol G, Blond JL, Boson B, Vachot L, Verrier B, Cosset FL, Mallet F. Synthesis, assembly, and processing of the Env ERVWE1/syncytin human endogenous retroviral envelope. J Virol 2005; 79:5585-93. [PMID: 15827173 PMCID: PMC1082723 DOI: 10.1128/jvi.79.9.5585-5593.2005] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.6] [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: 11/20/2022] Open
Abstract
Syncytin is a fusogenic protein involved in the formation of the placental syncytiotrophoblast layer. This protein is encoded by the envelope gene of the ERVWE1 proviral locus belonging to the human endogenous retrovirus W (HERV-W) family. The HERV-W infectious ancestor entered the primate lineage 25 to 40 million years ago. Although the syncytin fusion property has been clearly demonstrated, little is known about this cellular protein maturation process with respect to classical infectious retrovirus envelope proteins. Here we show that the cellular syncytin protein is synthesized as a glycosylated gPr73 precursor cleaved into two mature proteins, a gp50 surface subunit (SU) and a gp24 transmembrane subunit (TM). These SU and TM subunits are found associated as homotrimers. The intracytoplasmic tail is critical to the fusogenic phenotype, although its cleavage requirements seem to have diverged from those of classical retroviral maturation.
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Affiliation(s)
- V Cheynet
- Laboratoire de Vectorologie Rétrovirale et Thérapie Génique, INSERM U412, Ecole Normale Supérieure de Lyon, 69364 Lyon, France
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Antonucci G, Girardi E, Cozzi-Lepri A, Capobianchi MR, Morsica G, Pizzaferri P, Ladisa N, Sighinolfi L, Chiodera A, Solmone M, Lalle E, Ippolito G, Monforte AD, Ancarani F, Antinori A, Antonucci G, Bonasso M, Bruno R, Capobianchi MR, Cargnel A, Cozzi-Lepri A, d'Arminio Monforte A, Luca AD, Galli M, Gennero L, Girardi E, Lipani F, Marino N, Milazzo L, Morsica G, Narciso P, Pizzaferri P, Puoti M, Santantonio T, Verucchi G, Montroni M, Scalise G, Braschi MC, Prete MSD, Tirelli U, Cinelli R, Pastore G, Ladisa N, Suter GMBF, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Torti C, Minardi C, Bertelli D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Caputo SL, Angarano G, Grisorio B, Saracino A, Ferrara S, Grima P, Tundo P, Pagano G, Cassola G, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, Monforte AD, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo CM, Piazza M, Marco MD, Viglietti R, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Baldelli F, Tinca M, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, Stefano CD, Gala AL, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Cauda R, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, Luca AD, Giambenedetti SD, Zaccarelli M, Acinapura R, Longis PD, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Resta F, Loso K, Caramello P, Sinicco A, Soranzo ML, Orofino G, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, Lalla FD, Tositti G, Lepri AC. Response to Haart and Gb Virus Type C Coinfection in a Cohort of Antiretroviral-Naive HIV-Infected Individuals. Antivir Ther 2005. [DOI: 10.1177/135965350501000108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The prognostic role of GB virus type C (GBV-C) viraemia in HIV-infected subjects treated with highly active antiretroviral therapy (HAART) is still undefined, The aim of this analysis is to assess the relationship between GBV-C infection and response to antiretroviral therapy among HIV-infected subjects initiating HAART when antiretroviral-naive. A prospective, observational study of 400 HIV-infected patients with measurements of GBV-C RNA, hepatitis C virus (HCV) antibodies and HCV RNA determined from plasma stored prior to HAART initiation, Time to virological (achieving HIV RNA ≤500 copies/ml) and immunological success (a CD4+ count increase of ≥200cells/μl), and the time to virological relapse (confirmed HIV RNA >500 copies/ml) were assessed by Kaplan-Meier methods and Cox proportional hazard regression model. Of the subjects, 117 (29.3%) were GBV-C positive and, overall, 351 (87.8%) patients achieved virological success, After controlling for a number of confounders including HCV RNA, GBV-C viraemic patients experienced a significantly lower risk of HIV rebound than those who were GBV-C negative [relative hazard (RH)=0.56, 95% CI: 0.34–0.93, P=0.03], Conversely, the probability of achieving initial virological success or CD4+ count response after HAART did not differ between GBV-C-negative and -positive subjects, These results suggest that GBV-C coinfection may play a role in determining the rate of HIV rebound possibly by competing with HIV replication after HIV load has been successfully suppressed by HAART.
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Affiliation(s)
| | - Giorgio Antonucci
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
| | - Enrico Girardi
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
| | - Alessandro Cozzi-Lepri
- Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London, UK
| | | | - Giulia Morsica
- Institute of Infectious Diseases, Ateneo Vita e Salute, S Raffaele Hospital, Milano, Italy
| | - Paolo Pizzaferri
- Department of Infectious Diseases and Hepatology, Azienda Ospedaliera, Parma, Italy
| | - Nicoletta Ladisa
- Institute of Infectious and Tropical Diseases, University of Bari, Bari, Italy
| | - Laura Sighinolfi
- Department of Infectious Diseases, Arcispedale S Anna, Ferrara, Italy
| | | | | | - Eleonora Lalle
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
| | - Giuseppe Ippolito
- National Institute of Infectious Diseases, L Spallanzani, Roma, Italy
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Luca AD, Cozzi-Lepri A, Perno CF, Balotta C, Giambenedetto SD, Poggio A, Pagano G, Tositti G, Piscopo R, Forno AD, Chiodo F, Magnani G, Monforte AD, Angarano G, Antinori A, Balotta C, Cozzi-Lepri A, Monforte AD, De Luca A, Monno L, Perno CF, Rusconi S, Montroni M, Scalise G, Zoli A, Del Prete MS, Tirelli U, Di Gennaro G, Pastore G, Ladisa N, Minafra G, Suter F, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Castelli F, Minardi C, Vangi D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Caputo SL, Angarano G, Grisorio B, Ferrara S, Grima P, Tundo P, Pagano G, Piersantelli N, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, d'Arminio Monforte A, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo C, Piazza M, De Marco M, Montesarchio V, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Balzelli F, Loso K, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, De Stefano C, Gala AL, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Cauda R, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Di Giambenedetto S, Zaccarelli M, Acinapura R, De Longis P, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Caramello P, Sinicco A, Soranzo ML, Gennero L, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Resta F, Chimienti A, Lepri AC. Variability in the Interpretation of Transmitted Genotypic HIV-1 Drug Resistance and Prediction of Virological Outcomes of the Initial Haart by Distinct Systems. Antivir Ther 2004. [DOI: 10.1177/135965350400900505] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
High level HIV-1 drug resistance in recently infected treatment-naive individuals correlates with sub-optimal virological responses to highly active antiretroviral therapy (HAART). To determine whether genotypic HIV-1 drug resistance in chronic naive patients, as interpreted by various systems, could predict the virological outcomes of HAART, isolates from patients enrolled in a prospective observational cohort (ICoNA) prior to treatment start were genotyped. Genotypic susceptibility scores (GSS) assigned to the initial HAART regimens using the interpretations of pre-therapy resistance mutations by 13 systems were related to virological outcomes. Of 415 patients, 42 (10%) had at least one major resistance mutation. According to the different interpretations, 1.9–20.5% of patients had some level of resistance to at least one drug in the initial regimen. In multivariable analysis, GSS from two systems significantly predicted the time to virological success: Rega 5.5, for each unit increase in GSS adjusted relative hazard (RH) 1.86 [95% confidence intervals (95% CI): 1.15–3.02] and hivresistanceWeb v3, RH 1.87 (95% CI: 1.00–3.48). With three other systems, GSS showed a trend towards a significant prediction of success: Retrogram 1.6, RH 2.33 (95% CI: 0.98–5.53), Menéndez 2002, RH 2.36 (95% CI: 0.97–5.72) and Stanford hivdb, RH 2.06 (95% CI: 0.94–4.49). Genotypic resistance testing coupled with adequate interpretation in chronic naive patients can usefully identify those at risk of sub-optimal virological response to HAART.
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Affiliation(s)
| | - Andrea De Luca
- Institute of Clinical Infectious Diseases, Catholic University, Rome, Italy
| | - Alessandro Cozzi-Lepri
- Royal Free Centre for HIV Medicine and Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London, UK
| | | | - Claudia Balotta
- Institute of Infectious Diseases and Tropical Medicine, University of Milan, Milan, Italy
| | | | - Antonio Poggio
- Department of Infectious Diseases, Civile Hospital, Verbania, Italy
| | - Gabriella Pagano
- Department of Infectious Diseases, S Martino Hospital, Genova, Italy
| | - Giulia Tositti
- Department of Infectious Diseases, Vicenza Hospital, Vicenza, Italy
| | - Rita Piscopo
- Department of Infectious Diseases, Galliera Hospital, Genova, Italy
| | - Antonio Del Forno
- Institute of Clinical Infectious Diseases, Catholic University, Rome, Italy
| | - Francesco Chiodo
- Institute of Infectious Diseases, University of Bologna, Bologna, Italy
| | - Giacomo Magnani
- Department of Infectious Diseases, Santa Maria Nuova Hospital, Reggio Emilia, Italy
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Puoti M, Cozzi-Lepri A, Ancarani F, Bruno R, Ambu S, Ferraro T, Tundo P, Santantonio T, Toti M, Bonasso M, Monforte AD, Ancarani F, Antonucci G, Bonasso M, Bruno R, Cozzi-Lepri A, Monforte AD, Luca AD, Galli M, Gennero L, Girardi E, Lipani F, Marino N, Milazzo L, Morsica G, Narciso P, Pizzaferri P, Puoti M, Santantonio T, Verucchi G, Montroni M, Scalise G, Zoli A, Prete MSD, Tirelli U, Di Gennaro G, Pastore G, Ladisa N, Minafra G, Suter F, Arici C, Chiodo F, Colangeli V, Fiorini C, Coronado O, Carosi G, Cadeo GP, Castelli F, Minardi C, Vangi D, Rizzardini G, Migliorino G, Manconi PE, Piano P, Ferraro T, Scerbo A, Pizzigallo E, D'Alessandro M, Santoro D, Pusterla L, Carnevale G, Galloni D, Viganò P, Mena M, Ghinelli F, Sighinolfi L, Leoncini F, Mazzotta F, Pozzi M, Lo Caputo S, Angarano G, Grisorio B, Ferrara S, Grima P, Tundo P, Pagano G, Piersantelli N, Alessandrini A, Piscopo R, Toti M, Chigiotti S, Soscia F, Tacconi L, Orani A, Perini P, Scasso A, Vincenti A, Chiodera F, Castelli P, Scalzini A, Fibbia G, Moroni M, Lazzarin A, Cargnel A, Vigevani GM, Caggese L, d'Arminio Monforte A, Repetto D, Novati R, Galli A, Merli S, Pastecchia C, Moioli MC, Esposito R, Mussini C, Abrescia N, Chirianni A, Izzo C, Piazza M, De Marco M, Montesarchio V, Manzillo E, Graf M, Colomba A, Abbadessa V, Prestileo T, Mancuso S, Ferrari C, Pizzaferri P, Filice G, Minoli L, Bruno R, Novati S, Balzelli F, Loso K, Petrelli E, Cioppi A, Alberici F, Ruggieri A, Menichetti F, Martinelli C, De Stefano C, La Gala A, Ballardini G, Briganti E, Magnani G, Ursitti MA, Arlotti M, Ortolani P, Ortona L, Dianzani F, Ippolito G, Antinori A, Antonucci G, D'Elia S, Narciso P, Petrosillo N, Vullo V, De Luca A, Del Forno L, Zaccarelli M, Acinapura R, De Longis P, Ciardi M, D'Offizi G, Trotta MP, Noto P, Lichtner M, Capobianchi MR, Girardi E, Pezzotti P, Rezza G, Mura MS, Mannazzu M, Caramello P, Sinicco A, Soranzo ML, Gennero L, Sciandra M, Bonasso M, Grossi PA, Basilico C, Poggio A, Bottari G, Raise E, Pasquinucci S, De Lalla F, Tositti G, Resta F, Chimienti A, Cozzi-Lepri A. The Management of Hepatitis B Virus/HIV-1 Co-Infected Patients Starting Their First Haart Regimen. Treating Two Infections for the Price of One Drug? Antivir Ther 2004. [DOI: 10.1177/135965350400900506] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We examined the impact of a lamivudine-containing highly active antiretroviral therapy (HAART) regimen on 164 hepatitis B virus/HIV co-infected individuals starting their first HAART. Lamivudine-treated patients (accounting for 73% of the study population) showed a significantly lower level of alanine aminotransferase over follow-up [–81.1 mU/ml mean difference; 95% confidence intervals (95% CI): –30.3; –131.7, P=0.003] and a significantly reduced risk of liver-related morbidity/mortality [Relative hazard (RH)=0.07; 95% CI: 0.01–0.38, P=0.002] than those starting a lamivudine sparing-regimen.
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Affiliation(s)
| | - Massimo Puoti
- Institute of Infectious and Tropical Diseases, Spedali Civili, University of Brescia, Brescia, Italy
| | - Alessandro Cozzi-Lepri
- Department of Primary Care and Population Sciences, Royal Free and University College Medical School, London, UK
| | - Fausto Ancarani
- Institute of Infectious Diseases and Public Health, Umberto I Hospital, University of Ancona, Ancona, Italy
| | - Raffaele Bruno
- Institute of Infectious and Tropical Diseases, IRCCS S Matteo, University of Pavia, Pavia, Italy
| | - Silvia Ambu
- Department of Infectious Diseases, Azienda Ospedaliera Careggi, Firenze, Italy
| | - Teresa Ferraro
- Department of Infectious Diseases, Ospedale A Puglise, Catanzaro, Italy
| | - Paolo Tundo
- Department of Infectious Diseases, Ospedale Santa Caterina Novella, Galatina (Lecce), Italy
| | | | - Mario Toti
- Department of Infectious Diseases, Ospedale di Grosseto, Grosseto, Italy
| | - Marino Bonasso
- Department of Infectious Diseases, Ospedale ‘Amedeo Savoia’, Torino, Italy
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Soldo L, Ruggieri A, Milanese C, Pinza M, Guglielmotti A. Bendazac Lysine Inhibition of Human Lens Epithelial Cell Adhesion to Polymethylmethacrylate Intraocular Lenses. Ophthalmic Res 2004; 36:145-50. [PMID: 15103205 DOI: 10.1159/000077327] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2003] [Accepted: 01/09/2004] [Indexed: 11/19/2022]
Abstract
The aim of the present work was to evaluate the effect of bendazac lysine on the human lens epithelial cell line HLE-B3 adhesion to polymethylmethacrylate (PMMA) intraocular lenses (IOLs). After adherence to IOLs, cells were incubated in the presence of the drug for 24 h. The number of cells contained in a 6-mm(2) area was then counted with an inverted phase microscope and adherent cells were distinguished from detached floating cells by focusing through the medium. Results obtained show that bendazac is able to induce a linear dose-dependent inhibition of HLE-B3 adhesiveness to PMMA IOLs. In particular, treatment with bendazac 33, 100 and 300 microM resulted in a 15, 32 and 54% inhibition, respectively. Statistical analysis shows that this effect is significant at 100 microM (p < 0.05) and 300 microM (p < 0.01). The analysis of the effects of bendazac on the viability and on the proliferative capacity of HLE-B3 cells did not show any drug-related toxicity up to the concentration of 400 microM. The present study demonstrates that bendazac lysine is able to inhibit adhesion of lens epithelial cells to PMMA IOLs and suggests the potential beneficial use of this drug in preventing secondary cataract development.
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Affiliation(s)
- Lucia Soldo
- Pharmacology Department, ACRAF, S. Palomba-Pomezia, Rome, Italy
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Abstract
Tumour cells and virus infected cells expressing Fas ligand (FasL) can evade immune surveillance by inducing apoptosis in T cells expressing Fas. In order to characterise a possible role of hepatitis C virus (HCV) core protein in similar mechanisms during HCV infection, we investigated Fas ligand expression and activity in a human hepatoblastoma cell line (HepG2) constitutively expressing this protein. Strong FasL induction was detected by immunoblotting and flow cytometry analysis in the core expressing cell lines Hep39. In contrast, vector transfected cells or cell lines expressing HCV E1-E2 proteins did not show FasL expression. Co-cultivation experiments of Hep39 cells with a Fas-sensitive T cell line indicated that FasL induced by the core protein had apoptotic activity toward target cells. Effect of the core protein on induction of FasL promoter was further examined by co-transfection of HepG2 cells with core-bearing plasmid and a vector in which luciferase gene expression is driven by human FasL promoter. Results of the luciferase assay indicated a positive regulation of FasL promoter by the core protein. In conclusion, HCV core protein plays a role in the induction of functional FasL in hepatoblastoma cell line and apoptosis in a target T cell line expressing Fas. Similar mechanisms may contribute, in vivo, to establishment of chronic infection and development of hepatocellular carcinoma (HCC).
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Affiliation(s)
- A Ruggieri
- Laboratory of Virology, Istituto Superiore di Sanità, Viale Regina Elena 299, Rome 00161, Italy
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Ruggieri A, Murdolo M, Harada T, Miyamura T, Rapicetta M. Cell cycle perturbation in a human hepatoblastoma cell line constitutively expressing Hepatitis C virus core protein. Arch Virol 2003; 149:61-74. [PMID: 14689276 DOI: 10.1007/s00705-003-0202-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2003] [Revised: 01/01/2003] [Accepted: 07/11/2003] [Indexed: 10/26/2022]
Abstract
Hepatitis C virus (HCV) is one of the major causes of chronic liver disease with the potential for development of hepatocellular carcinoma (HCC). The core protein of HCV has been shown to modulate expression of various cellular genes and to influence a number of cellular functions. We investigated the effect of constitutively expressed HCV core protein on cell cycle progression in HepG2 cell line, which is derived from a differentiated human hepatoblastoma and shows biosynthetic features similar to human hepatocytes. The results indicated that stable expression of the core protein in unsynchronized HepG2 cells induced a perturbation of the cell cycle with reduced cell doubling meantime and increased S phase fraction. Increase of c-myc protein above the basal expression level was demonstrated with a significant increase of c-myc stability, as revealed by its prolonged intracellular half-life, in HepG2 expressing HCV core protein. In contrast, p53 and p21 levels were unchanged. These results suggest that HCV core protein may promote cell cycle progression in HepG2 cells possibly through increasing stability of c-myc oncoprotein. These results are in support of important role played by HCV core protein in virus-mediated pathogenesis in persistently infected hosts and in hepatocarcinogenesis.
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Affiliation(s)
- A Ruggieri
- Laboratory of Virology, Istituto Superiore di Sanità, Rome, Italy
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de Joannon AC, Mancini F, Landolfi C, Soldo L, Leta A, Ruggieri A, Mangano G, Polenzani L, Pinza M, Milanese C. Adenosine triphosphate affects interleukin -1beta release by T98G glioblastoma cells through a purinoceptor-independent mechanism. Neurosci Lett 2000; 285:218-22. [PMID: 10806325 DOI: 10.1016/s0304-3940(00)01051-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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: 10/18/2022]
Abstract
T98G glioblastoma cells were previously shown to significantly increase interleukin-1beta (IL-1beta) mRNA levels in response to IL-1beta stimulation. This work demonstrates that in such conditions T98G, despite possessing biologically active interleukin converting enzyme, do not release detectable amounts of IL-1beta, even in the presence of 20 mM adenosine triphosphate (ATP). IL-1beta secretion is observed only following concomitant stimulation with 1000 units/ml of IL-1beta and 20 mM ATP. ATP induces a dose-dependent depolarization of T98G plasma membrane, whereas it does not affect Ca(2+) concentration or cell membrane permeability. Our data, together with the observation that the depolarizing effects of ATP are retained after preincubation with 100 microM suramin, an antagonist of P2-purinoceptors, suggest that ATP plays a role in IL-1beta secretion by T98G but its effects do not occur through P2-purinoceptors.
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Affiliation(s)
- A C de Joannon
- A.C.R.A.F. - Angelini Ricerche, Piazzale della Stazione snc, 00040 Santa Palomba-Pomezia, Rome, Italy
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Lavillette D, Ruggieri A, Russell SJ, Cosset FL. Activation of a cell entry pathway common to type C mammalian retroviruses by soluble envelope fragments. J Virol 2000; 74:295-304. [PMID: 10590117 PMCID: PMC111539 DOI: 10.1128/jvi.74.1.295-304.2000] [Citation(s) in RCA: 73] [Impact Index Per Article: 3.0] [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: 12/21/2022] Open
Abstract
Mutations that negatively or positively affect the fusion properties of murine leukemia viruses (MLVs) have been found within all subdomains of their SU (surface) and TM (transmembrane) envelope units. Yet, the interrelations between these different regions of the envelope complex during the cell entry process are still elusive. Deletion of the histidine residue of the conserved PHQV motif at the amino terminus of the amphotropic or the ecotropic MLV SU resulted in the AdelH or the MOdelH fusion-defective mutant envelope, respectively. These delH mutant envelopes are incorporated on retroviral particles at normal densities and normally mediate virion binding to cells expressing the retroviral receptors. However, both their cell-cell and virus-cell fusogenicities were fully prevented at an early postbinding stage. We show here that the fusion defect of AdelH or MOdelH envelopes was also almost completely reverted by providing either soluble SU or a polypeptide encompassing the receptor-binding domain (RBD) to the target cells, provided that the integrity of the amino-terminal end of either polypeptide was preserved. Restoration of delH envelope fusogenicity was caused by activation of the target cells via specific interaction of the latter polypeptides with the retrovirus receptor rather than by their association with the delH envelope complexes. Moreover crossactivation of the target cells, leading to fusion activation of AdelH or MOdelH envelopes, was achieved by polypeptides containing various type C mammalian retrovirus RBDs, irrespective of the type of entry-defective glycoprotein that was used for infection. Our results indicate that although they recognize different receptors for binding to the cell surface, type C mammalian retroviruses use a common entry pathway which is activated by a conserved feature of their envelope glycoproteins.
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Affiliation(s)
- D Lavillette
- Laboratoire de Vectorologie Rétrovirale et Thérapie Génique, Unité de Virologie Humaine, INSERM U412, Ecole Normale Supérieure de Lyon, Lyon, France
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Elkin PL, Ruggieri A, Bergstrom L, Bauer BA, Lee M, Ogren PV, Chute CG. A randomized controlled trial of concept based indexing of Web page content. Proc AMIA Symp 2000:220-4. [PMID: 11079877 PMCID: PMC2243865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
OBJECTIVE Medical information is increasingly being presented in a web-enabled format. Medical journals, guidelines, and textbooks are all accessible in a web-based format. It would be desirable to link these reference sources to the electronic medical record to provide education, to facilitate guideline implementation and usage and for decision support. In order for these rich information sources to be accessed via the medical record they will need to be indexed by a single comparable underlying reference terminology. METHODS We took a random sample of 100 web pages out of the 6,000 web pages on the Mayo Clinic's Health Oasis web site. The web pages were divided into four datasets each containing 25 pages. These were humanly reviewed by four clinicians to identify all of the health concepts present (R1DA, R2DB, R3DC, R4DD). The web pages were simultaneously indexed using the SNOMED-RT beta release. The indexing engine has been previously described and validated. A new clinician reviewed the indexed web pages to determine the accuracy of the automated mappings as compared with the human identified concepts (R4DA, R3DB, R2DC, R1DD). RESULTS This review found 13,220 health concepts. Of these 10,383 concepts were identified by the initial human review (78.5% +/- 3.6%). The automated process identified 10,083 concepts correctly (76.3% +/- 4.0%) from within this corpus. The computer identified 2,420 concepts, which were not identified by the clinician's review but were upon further consideration important to include as health concepts. There was on average a 17.1% +/- 3.5% variability in the human reviewers ability to identify the important health concepts within web page content. Concept Based Indexing provided a positive predictive value (PPV) of finding a health concept of 79.3% as compared with keyword indexing which only has a PPV of 33.7% (p < 0.001). CONCLUSION SNOMED-RT is a reasonable ontology for web page indexing. Concept based indexing provides a significantly greater accuracy in identifying health concepts when compared with keyword indexing.
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Giovannelli A, Limatola C, Ragozzino D, Mileo AM, Ruggieri A, Ciotti MT, Mercanti D, Santoni A, Eusebi F. CXC chemokines interleukin-8 (IL-8) and growth-related gene product alpha (GROalpha) modulate Purkinje neuron activity in mouse cerebellum. J Neuroimmunol 1998; 92:122-32. [PMID: 9916887 DOI: 10.1016/s0165-5728(98)00192-1] [Citation(s) in RCA: 119] [Impact Index Per Article: 4.6] [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: 11/23/2022]
Abstract
We give here evidence that Purkinje neurons (PNs) of mouse cerebellar slices studied with patch clamp technique combined with laser confocal microscopy, respond to human IL-8 and GROalpha by (i) a cytosolic Ca2+ transient compatible with inositol (1,4,5) trisphosphate (InsP3) formation; (ii) an enhancement of the neurotransmitter release; and (iii) an impairment of the long-term depression of synaptic strength (LTD). It was also found the expression of IL-8 receptor type 2 in PN and granule cells by immunofluorescence, immunoblotting and RT-PCR analysis. Considered together these findings suggest that IL-8 and GROalpha may play a neuromodulatory role on mouse cerebellum.
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Affiliation(s)
- A Giovannelli
- Dipartimento di Medicina Sperimentale Università di L'Aquila, Rome, Italy
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50
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Abstract
We have characterized viral-cell interactions of hepatitis C virus (HCV) and liver cells to study the pathogenesis of HCV infection. HepG2 cells constitutively expressing HCV core protein showed apoptotic changes in response to stimulation with anti-Fas monoclonal antibody. Cells treated with the antibody showed extensive cell rounding, shrinkage, and cytoplasmic blebbing and finally detached from plates. Fragmentation of the chromatin was observed in the nucleus and DNA ladders were detected. In contrast, cells expressing HCV envelope, nonstructural proteins or normal HepG2 cells did not exhibit such Fas-mediated apoptosis. However, expression of Fas receptor was not upregulated on the surface of the cells expressing HCV core protein. Apoptotic cell death was prevented by pretreatment with a specific inhibitor of the cysteine protease CPP32, while the specific inhibitor of interleukin-1 beta-converting enzyme did not show the preventive effect. The results suggest (i) that intracellular expression of HCV core protein makes cells prone to apoptotic death without upregulation of surface Fas expression and (ii) that the CPP32 protease plays a part in the apoptosis effector pathway of HCV core-expressing cells. HCV core protein may have a role in immune-mediated liver cell injury.
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Affiliation(s)
- A Ruggieri
- Department of Virology II, National Institute of Health, Tokyo, Japan
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