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Borin M, Degliuomini RS, Schiraldi L, Di Summa PG, Buzzaccarini G. Ensuring Competence and Patient Safety through Regulation and Standardized Training in Aesthetic Medicine. Plast Reconstr Surg 2024; 153:656e-657e. [PMID: 37699549 DOI: 10.1097/prs.0000000000011060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Affiliation(s)
- Marco Borin
- U.O.C. Otorhinolaryngology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Rebecca Susanna Degliuomini
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Luigi Schiraldi
- Lausanne University Hospital (CHUV), Department of Plastic and Hand Surgery, Lausanne, Switzerland
| | - Pietro Giovanni Di Summa
- Lausanne University Hospital (CHUV), Department of Plastic and Hand Surgery, Lausanne, Switzerland
| | - Giovanni Buzzaccarini
- Department of Obstetrics and Gynecology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
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Buzzaccarini G, Degliuomini RS, Borin M. The Artificial Intelligence application in Aesthetic Medicine: How ChatGPT can Revolutionize the Aesthetic World. Aesthetic Plast Surg 2023; 47:2211-2212. [PMID: 37256297 DOI: 10.1007/s00266-023-03416-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 06/01/2023]
Abstract
Aesthetic medicine is witnessing a growing importance of ChatGPT and artificial intelligence (AI) technologies, as highlighted by the pioneering work of Xie et al. in their article, "Aesthetic Surgery Advice and Counseling from Artificial Intelligence: A Rhinoplasty Consultation with ChatGPT." These advancements promise to revolutionize patient consultations, treatment planning, and follow-up care. AI-driven chatbots, such as ChatGPT, can enhance patient consultations by providing accurate and reliable information on aesthetic procedures, their risks, benefits, and potential outcomes, enabling well-informed decisions and improved treatment outcomes. Furthermore, AI can personalize treatment plans by analyzing patient data, leading to increased precision and satisfaction. AI-powered platforms can also streamline patient follow-up and monitoring, improving patient outcomes and resource utilization, while serving as a valuable educational tool for clinicians. Despite these benefits, AI integration in aesthetic medicine raises concerns about data privacy, security, and potential biases in AI algorithms. To address these challenges, the aesthetic medicine community must establish ethical guidelines, adopt stringent security protocols, and ensure diverse and representative datasets for AI training. Additionally, maintaining the personal connection between patients and providers is crucial for preserving the human touch in patient care.Level of Evidence V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors https://www.springer.com/00266 .
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Affiliation(s)
- Giovanni Buzzaccarini
- Department of Obstetrics and Gynaecology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Via Olgettina 58-60, 20132, Milan, Italy.
| | - Rebecca Susanna Degliuomini
- Department of Obstetrics and Gynaecology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Via Olgettina 58-60, 20132, Milan, Italy
| | - Marco Borin
- U.O.C. Otorhinolaryngology, ASST Grande Ospedale Metropolitano Niguarda, Piazza Ospedale Maggiore, 3, 20162, Milan, Italy
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Buzzaccarini G, Degliuomini RS, Borin M. Response Letter to "Testing ChatGPT's Capabilities for Social Media Content Analysis". Aesthetic Plast Surg 2023:10.1007/s00266-023-03675-7. [PMID: 37758854 DOI: 10.1007/s00266-023-03675-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023]
Abstract
This editorial discusses the innovative application of ChatGPT in categorizing and analysing social media content, with a focus on aesthetic medical fields. It highlights the revolutionary capabilities of AI in enhancing efficiency and objectivity over traditional human-driven methods. Alongside the benefits, it also considers ethical concerns surrounding privacy, consent, and inherent biases within AI models. The article explores the complexity of categorization, the limitations in understanding human nuances, and the impact on human creativity, including specific applications such as SEO writing. It concludes by emphasizing the need for careful integration of AI in our interconnected world, balancing technological advancements with ethical considerations and a recognition of the unique attributes of human intellect. LEVEL OF EVIDENCE V: This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Giovanni Buzzaccarini
- Department of Obstetrics and Gynaecology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Via Olgettina 58-60, 20132, Milan, Italy.
| | - Rebecca Susanna Degliuomini
- Department of Obstetrics and Gynaecology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Via Olgettina 58-60, 20132, Milan, Italy
| | - Marco Borin
- U.O.C. Otorhinolaryngology, ASST Grande Ospedale Metropolitano Niguarda Piazza Ospedale Maggiore, 3-20162, Milan, Italy
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Buzzaccarini G, Degliuomini RS, Borin M. The Impact of Social Media-Driven Fame in Aesthetic Medicine: When Followers Overshadow Science. Aesthet Surg J 2023; 43:NP807-NP808. [PMID: 37291940 PMCID: PMC10501744 DOI: 10.1093/asj/sjad190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/05/2023] [Accepted: 06/07/2023] [Indexed: 06/10/2023] Open
Affiliation(s)
- Giovanni Buzzaccarini
- Corresponding Author: Dr Giovanni Buzzaccarini, Department of Obstetrics and Gynaecology, IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Via Olgettina 58-60, 20132 Milan, Italy. E-mail: ; Instagram: @dr.gbuzzaccarini
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Buzzaccarini G, Laganà AS, Borin M, Varì S, Tulipano G, Vertuè S, Noventa M, Albini M, Vercesi F. Los Deline copolyamide filler for breast and buttock augmentation. The position statement of the Italian Aesthetic Medicine Association (AMEI). J Plast Reconstr Aesthet Surg 2022; 75:2831-2870. [DOI: 10.1016/j.bjps.2022.06.047] [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] [Received: 03/23/2022] [Revised: 04/27/2022] [Accepted: 06/07/2022] [Indexed: 10/18/2022]
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Malagutti N, Fancello V, Cariani A, Battistini F, Fabbri C, Di Laora A, Valpiani G, Morotti C, Iannini V, Borin M, Ravani A, Bianchini C, Ciorba A, Stomeo F, Pelucchi S. Ion concentrations in nasal airway surface liquid: a prediction model for the identification of cystic fibrosis carriers. Rhinology 2021; 59:470-474. [PMID: 34398939 DOI: 10.4193/rhin21.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Cystic fibrosis (CF) carriers seem to have a higher risk to develop chronic rhino-sinusitis (CRS), although the full underlying mechanisms are unknown. Ion concentrations in nasal airway surface liquid (ASL) may be influenced by the heterozygosity for CF gene mutation, with possible impacts on the development of CRS. METHODS A cheap and feasible standardized technique was designed to measure the ion levels in nasal ASL. With this purpose we collected, under basal conditions, samples from the nasal cavity of 165 adults: 14 homozygous for CF, 83 carriers and 68 healthy controls. Sodium (Na) and Chlorine (Cl) concentrations were then evaluated among different groups. RESULTS Statistical analysis revealed a significant difference of Na and Cl values between controls and carriers and between controls and homozygotes. Receiver operating characteristic (ROC) curves and derived indicators (Youden's index and Area Under the Curve, AUC) were used to further evaluate the diagnostic capability of Na and Cl concentrations to differentiate heterozygotes from controls. ROC curves demonstrated that the optimal diagnostic cut-off value of Na is at 124, and the optimal cut-off value of Cl is at 103,2. CONCLUSION ASL sampling can be considered a new diagnostic tool for providing quantitative information on nasal ion composition. According to our findings, Na and Cl concentrations of nasal ASL could represent a useful tool to assess heterozygotes and healthy controls.
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Affiliation(s)
- N Malagutti
- ENT and Audiology Unit, Department of Neuroscience and Rehabilitation, University Hospital of Ferrara, Ferrara, Italy
| | - V Fancello
- ENT and Audiology Unit, Department of Neuroscience and Rehabilitation, University Hospital of Ferrara, Ferrara, Italy
| | - A Cariani
- Department of Biochemistry and Molecular Biology, University of Ferrara, Ferrara, Italy
| | - F Battistini
- Cystic Fibrosis Regional Center, Bufalini Hospital, Cesena, Italy
| | - C Fabbri
- ENT and Audiology Unit, Department of Neuroscience and Rehabilitation, University Hospital of Ferrara, Ferrara, Italy
| | - A Di Laora
- ENT and Audiology Unit, Department of Neuroscience and Rehabilitation, University Hospital of Ferrara, Ferrara, Italy
| | - G Valpiani
- Research Innovation Office, S. Anna University Hospital of Ferrara, Ferrara, Italy
| | - C Morotti
- Research Innovation Office, S. Anna University Hospital of Ferrara, Ferrara, Italy
| | - V Iannini
- ENT and Audiology Unit, Department of Neuroscience and Rehabilitation, University Hospital of Ferrara, Ferrara, Italy
| | - M Borin
- ENT and Audiology Unit, Department of Neuroscience and Rehabilitation, University Hospital of Ferrara, Ferrara, Italy
| | - A Ravani
- Unit of Medical Genetics Unit, Department of Medical Sciences, University of Ferrara, Ferrara, Italy
| | - C Bianchini
- ENT and Audiology Unit, Department of Neuroscience and Rehabilitation, University Hospital of Ferrara, Ferrara, Italy
| | - A Ciorba
- ENT and Audiology Unit, Department of Neuroscience and Rehabilitation, University Hospital of Ferrara, Ferrara, Italy
| | - F Stomeo
- ENT and Audiology Unit, Department of Neuroscience and Rehabilitation, University Hospital of Ferrara, Ferrara, Italy
| | - S Pelucchi
- ENT and Audiology Unit, Department of Neuroscience and Rehabilitation, University Hospital of Ferrara, Ferrara, Italy
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Borin M, Pignataro L, Ibba T, Di Cicco M, Folino F, Marchisio P, Capaccio P, Torretta S. Unrevealed foreign body in the deep neck space: A case report. Clin Case Rep 2021; 9:1478-1482. [PMID: 33768872 PMCID: PMC7981780 DOI: 10.1002/ccr3.3806] [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] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/10/2020] [Accepted: 12/28/2020] [Indexed: 12/04/2022] Open
Abstract
Clinical data provided by the patient are not always reliable or could be difficult to collect. In this case, a difficult history collection resulted in a diagnostic delay. Major complications were avoided performing an urgent surgical intervention.
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Affiliation(s)
- Marco Borin
- Fondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
- Department of Clinical Sciences and Community HealthUniversità degli Studi di MilanoMilanItaly
| | - Lorenzo Pignataro
- Fondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
- Department of Clinical Sciences and Community HealthUniversità degli Studi di MilanoMilanItaly
| | - Tullio Ibba
- Fondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
| | | | - Francesco Folino
- Department of Pathophysiology and TransplantationUniversità degli Studi di MilanoMilanItaly
| | - Paola Marchisio
- Fondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
- Department of Pathophysiology and TransplantationUniversità degli Studi di MilanoMilanItaly
| | - Pasquale Capaccio
- Fondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
- Department of Biomedical Surgical Dental ScienceUniversità degli Studi di MilanoMilanItaly
| | - Sara Torretta
- Fondazione IRCCS Ca' Granda Ospedale Maggiore PoliclinicoMilanItaly
- Department of Clinical Sciences and Community HealthUniversità degli Studi di MilanoMilanItaly
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Torretta S, Capaccio P, Gaffuri M, Gaini LM, Borin M, Maruca A, Battilocchi L, Nitro L, Marchisio P, Pignataro L. ENT management of children with adenotonsillar disease during COVID-19 pandemic. Ready to start again? Int J Pediatr Otorhinolaryngol 2020; 138:110145. [PMID: 32499073 PMCID: PMC7253984 DOI: 10.1016/j.ijporl.2020.110145] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 05/25/2020] [Accepted: 05/25/2020] [Indexed: 01/29/2023]
Abstract
Clinical manifestations of COVID-19 in children are milder, but the real burden of disease is unknown. After the lockdown, in our Region Lombardia we have been requested to progressively resume medical services including outpatient assessment and priority surgery. Therefore, we screened surgical waiting lists with identification of 47 children candidates to priority surgery (among 358). No homogeneous national health surveillance/screening programs are ongoing or have been conceived to test susceptible population among children/healthcare workers in preparation of coming down to routinely daily activities, and diagnostic strategies are not completely accurate in children. So, restoring medical services now might be untimely.
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Affiliation(s)
- Sara Torretta
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
| | - Pasquale Capaccio
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Biomedical Surgical Dental Science, University of Milan, Milan, Italy
| | - Michele Gaffuri
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Lorenzo Maria Gaini
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Marco Borin
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Antonella Maruca
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Ludovica Battilocchi
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Letizia Nitro
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Paola Marchisio
- Pediatric Highly Intensive Care Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Lorenzo Pignataro
- Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
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Di Cicco M, Di Pasquale D, Borin M, Colombo C. P233 Cystic fibrosis sinus score for paranasal sinuses complications of cystic fibrosis: a 3-year long experience. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30526-0] [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: 10/26/2022]
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Affiliation(s)
- Lucia Guidolin
- Pediatric Dermatology Unit, Department of Medicine DIMED, University of Padova, Via Gallucci, 4, IT-35128 Padova, Italy
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Da Rin G, Vidali M, Balboni F, Benegiamo A, Borin M, Ciardelli ML, Dima F, Di Fabio A, Fanelli A, Fiorini F, Francione S, Germagnoli L, Gioia M, Lari T, Lorubbio M, Marini A, Papa A, Seghezzi M, Solarino L, Pipitone S, Tilocca E, Buoro S. Performance evaluation of the automated nucleated red blood cell count of five commercial hematological analyzers. Int J Lab Hematol 2017; 39:663-670. [PMID: 28990291 DOI: 10.1111/ijlh.12722] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Accepted: 06/26/2017] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Recent automated hematology analyzers (HAs) can identify and report nucleated red blood cells (NRBC) count as a separate population out of white blood cells (WBC). The aim of this study was to investigate the analytical performances of NRBC enumeration on five top of the range HAs. METHODS We evaluated the within-run and between-day precision, limit of blank (LoB), limit of detection (LoD), and limit of quantitation (LoQ) of XE-2100 and XN-module (Sysmex), ADVIA 2120i (Siemens), BC-6800 (Mindray), and UniCel DxH 800 (Beckman Coulter). Automated NRBC counts were also compared with optical microscopy (OM). RESULTS The limits of detection for NRBC of the BC-6800, XN-module, XE-2100, UniCel DxH 800, and ADVIA 2120i are 0.035×109 /L, 0.019×109 /L, 0.067×109 /L, 0.038×109 /L, and 0.167×109 /L, respectively. Our data indicated excellent performance in terms of precision. The agreement with OM was excellent for BC-6800, XN-module, and XE-2100 (Bias 0.023, 0.019, and 0.033×109 /L, respectively). ADVIA 2120i displayed a significant constant error and UniCel DxH 800 both proportional and small constant error. CONCLUSION Regards to NRBC counting, the performances shown by BC-6800, XN-module, and XE-2100 are excellent also a low count, ADVIA 2120i and UniCel DxH 800 need to be improved.
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Affiliation(s)
- G Da Rin
- Laboratory Medicine, San Bassiano Hospital, ASL 7 Pedemontana, Bassano del Grappa, Italy
| | - M Vidali
- Immunohematology and Transfusion Medicine Service, Hospital SS. Trinità, Borgomanero, Italy
| | - F Balboni
- Laboratory Medicine, Istituto Fiorentino di Cura e Assistenza (IFCA), Firenze, Italy
| | - A Benegiamo
- Laboratory of Clinical Chemistry and Hematology, Hospital of Parma, Parma, Italy
| | - M Borin
- Clinical Chemistry Laboratory and Microbiology, ASL NO, Borgomanero, Italy
| | - M L Ciardelli
- Clinical Chemistry Laboratory, IRCCS Policlinico San Matteo, Pavia, Italy
| | - F Dima
- Clinical Chemistry Laboratory, AOUI Verona, Verona, Italy
| | - A Di Fabio
- Clinical Chemistry Laboratory, Hospital Civile, Avezzano, Italy
| | - A Fanelli
- General Laboratory, University Hospital Careggi, Firenze, Italy
| | - F Fiorini
- Clinical Pathology Laboratory, USL Nordovest, Toscana, Italy
| | - S Francione
- Clinical Chemistry Laboratory and Microbiology, ASL NO, Borgomanero, Italy
| | | | - M Gioia
- Clinical Chemistry Laboratory, Hospital Abele Ajello, Mazara del Vallo, Italy
| | - T Lari
- Clinical Chemistry Laboratory, Hospital Versilia, Azienda Toscana Nord ovest, Lido di Camaiore, Italy
| | - M Lorubbio
- Laboratory Medicine, Fondazione G. Monasterio CNR Regione Toscana, Pisa, Italy
| | - A Marini
- Clinical Chemistry Laboratory, Hospital Versilia, Azienda Toscana Nord ovest, Lido di Camaiore, Italy
| | - A Papa
- Laboratory Medicine, Fondazione G. Monasterio CNR Regione Toscana, Pisa, Italy
| | - M Seghezzi
- Clinical Chemistry Laboratory, Hospital Papa Giovanni XXIII, Bergamo, Italy
| | - L Solarino
- Laboratory Medicine I, P.O. V.Emanuele, A.U.O "Policlinico-V.Emanuele", Catania, Italy
| | - S Pipitone
- Laboratory of Clinical Chemistry and Hematology, Hospital of Parma, Parma, Italy
| | - E Tilocca
- Laboratory Medicine I, P.O. V.Emanuele, A.U.O "Policlinico-V.Emanuele", Catania, Italy
| | - S Buoro
- Clinical Chemistry Laboratory, Hospital Papa Giovanni XXIII, Bergamo, Italy
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Pipitone S, Germagnoli L, Da Rin G, Di Fabio A, Fanelli A, Fiorini F, Francione S, Marini A, Papa A, Benegiamo A, Lari T, Siviero F, Lorubbio M, Borin M, Seghezzi M, Ciardelli ML, Dima F, Gioia M, Buoro S. Comparing the performance of three panels rules of blood smear review criteria on an Italian multicenter evaluation. Int J Lab Hematol 2017; 39:645-652. [DOI: 10.1111/ijlh.12720] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 06/20/2017] [Indexed: 11/29/2022]
Affiliation(s)
- S. Pipitone
- Clinical Chemistry and Hematology Laboratory; University Hospital of Parma; Parma Italy
| | | | - G. Da Rin
- Department of Laboratory Medicine ASL 3; Bassano del Grappa Italy
| | - A. Di Fabio
- Clinical Chemistry Laboratory; Avezzano Civic Hospital; Avezzano Italy
| | - A. Fanelli
- Laboratory Department; Azienda Ospedaliera Careggi; Florence Italy
| | - F. Fiorini
- Department of Clinical Pathology; USL Toscana Nordovest; Pisa Italy
| | - S. Francione
- Department of Clinical Chemistry and Microbiology; ASL Novara; Borgomanero Italy
| | - A. Marini
- Department of Clinical Chemistry; Versilia Hospital; Lido di Camaiore Italy
| | - A. Papa
- Department of Laboratory Medicine; CNR Fondazione Toscana Gabriele Monasterio; Pisa Italy
| | - A. Benegiamo
- Clinical Chemistry and Hematology Laboratory; University Hospital of Parma; Parma Italy
| | - T. Lari
- Department of Clinical Chemistry; Versilia Hospital; Lido di Camaiore Italy
| | - F. Siviero
- Department of Laboratory Medicine ASL 3; Bassano del Grappa Italy
| | - M. Lorubbio
- Laboratory Department; Azienda Ospedaliera Careggi; Florence Italy
| | - M. Borin
- Department of Clinical Chemistry and Microbiology; ASL Novara; Borgomanero Italy
| | - M. Seghezzi
- Clinical Chemistry Laboratory; Papa Giovanni XXIII Hospital; Bergamo Italy
| | - M. L. Ciardelli
- Clinical Chemistry Laboratory; Policlinico San Matteo-IRCCS; University of Pavia; Pavia Italy
| | - F. Dima
- Laboratory of Clinical Biochemistry; University of Verona and Azienda Ospedaliera Universitaria Integrata Verona; Verona Italy
| | - M. Gioia
- Clinical Chemistry Laboratory; Abele Ajello Hospital; Mazara del Vallo Italy
| | - S. Buoro
- Clinical Chemistry Laboratory; Papa Giovanni XXIII Hospital; Bergamo Italy
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Libanore M, Merlo R, Borin M, Marchesi E, Rossi MR, Fabbris C, Pelucchi S, Stomeo F, Ciorba A, Malagutti N. Listeria Monocytogenes: an uncommon pathogen of cervical necrotizing fasciitis. B-ENT 2016; 12:245-247. [PMID: 29727131] [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: 06/08/2023] Open
Abstract
The aim of this paper is to present a unique case of neck-necrotizing fasciitis caused by Listeria Monocytogenes in a young woman, successfully treated by surgery and IV antibiotic therapy. Necrotizing fasciitis is a rare, rapidly progressing and potentially life-threatening infection that infrequently occurs in the head and neck region. Pathogens involved in necrotizing fasciitis are heterogeneous and include aerobic and anaerobic bacteria. To the best of our knowledge, this is the only case of neck necrotizing fasciitis caused by Listeria Monocytogenes studied in literature so far.
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Malagutti N, Stomeo F, Pelucchi S, Ronchin R, Ceccon M, Malacrida G, Ciorba A, Pastore A, Borin M, Rizzo R. Analysis of Il-10 gene sequence in patients with sinonasal polyposis. Int J Immunopathol Pharmacol 2015; 28:434-9. [DOI: 10.1177/0394632015573922] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 01/14/2015] [Indexed: 11/15/2022] Open
Abstract
Sinonasal polyposis (SNP) is a chronic inflammatory disease of nasal and paranasal cavities. Human leukocyte antigen-G molecules (HLA-G) are non-classic HLA-I molecules with anti-inflammatory and tolerogenic properties. HLA-G production is mainly induced by interleukin (IL)-10. IL-10 is an anti-inflammatory cytokine that inhibits the production of proinflammatory cytokines and induces HLA-class II down-modulation. Recent studies suggest that HLA-G could play a role in SNP pathogenesis; in SNP patients physiological levels of IL-10 (produced by activated peripheral blood CD14+ monocytes) are not able to induce production of HLA-G. Different mechanisms could justify these findings: genomic or amino-acidic sequence alterations in IL-10 lower IL-10 receptor expression, lower IL-10 receptor affinity, or alterations of the intracellular signal transmission. This study analyzes nucleotidic sequence of IL-10 gene in SNP patients. Sequencing of IL-10 gene shows that the lack of HLA-G production by peripheral blood CD14+ monocytes is not related to alterations in IL-10 gene nucleotidic sequence.
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Affiliation(s)
- N Malagutti
- Department of Otolaringology, University of Ferrara, St Anna Hospital, Cona, Italy
| | - F Stomeo
- Department of Otolaringology, University of Ferrara, St Anna Hospital, Cona, Italy
| | - S Pelucchi
- Department of Otolaringology, University of Ferrara, St Anna Hospital, Cona, Italy
| | - R Ronchin
- Department of Otolaringology, University of Ferrara, St Anna Hospital, Cona, Italy
| | - M Ceccon
- BMR Genomics s.r.l., Padova, Italy
| | | | - A Ciorba
- Department of Otolaringology, University of Ferrara, St Anna Hospital, Cona, Italy
| | - A Pastore
- Department of Otolaringology, University of Ferrara, St Anna Hospital, Cona, Italy
| | - M Borin
- Department of Otolaringology, University of Ferrara, St Anna Hospital, Cona, Italy
| | - R Rizzo
- Department of Medical Sciences, Section of Microbiology and Medical Genetics, University of Ferrara, Italy
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15
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Pastore A, Borin M, Malagutti N, Di Laora A, Beccati D, Delazer AL, Bianchini C, Stomeo F, Ciorba A, Pelucchi S. Preoperative assessment of salivary gland neoplasms with fine needle aspiration cytology and echography: a retrospective analysis of 357 cases. Int J Immunopathol Pharmacol 2014; 26:965-71. [PMID: 24355233 DOI: 10.1177/039463201302600416] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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] Open
Abstract
Fine-needle aspiration cytology (FNAC) is a minimally invasive procedure usually well tolerated, easy to perform, quick, cheap and easy to repeat in case of doubts or non-diagnostic results. Echography is also a fast, cheap and non-invasive tool; however, the role of FNAC and echography in the diagnosis of salivary gland pathology is not universally recognised. Three hundred and fifty-seven patients with a cytological diagnosis at FNAC, and 247 of these who were also studied with echography, were enrolled for this retrospective study. The final histopathological diagnoses, obtained after surgery, were then compared to the preoperative FNAC diagnoses and echographic findings. From the analysis of our data, the overall FNAC specificity resulted 93 percent, sensitivity 83 percent, and diagnostic accuracy 92 percent. Echography sensibility was 57.1 percent specificity 98.2 percent, while positive and negative predictive value were respectively 80 percent and 94.8 percent. While echography can be useful in order to provide a better characterization of salivary gland lesions, FNAC can then be considered a safe diagnostic tool with reliable sensitivity and specificity for the assessment of salivary gland pathology and thus for selecting patients and indicating the best surgical treatment.
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Affiliation(s)
- A Pastore
- ENT Department, University Hospital of Ferrara, Ferrara, Italy
| | - M Borin
- ENT Department, University Hospital of Ferrara, Ferrara, Italy
| | - N Malagutti
- ENT Department, University Hospital of Ferrara, Ferrara, Italy
| | - A Di Laora
- ENT Department, University Hospital of Ferrara, Ferrara, Italy
| | - D Beccati
- ENT Department, University Hospital of Ferrara, Ferrara, Italy
| | - A L Delazer
- ENT Department, University Hospital of Ferrara, Ferrara, Italy
| | - C Bianchini
- ENT Department, University Hospital of Ferrara, Ferrara, Italy
| | - F Stomeo
- ENT Department, University Hospital of Ferrara, Ferrara, Italy
| | - A Ciorba
- ENT Department, University Hospital of Ferrara, Ferrara, Italy
| | - S Pelucchi
- ENT Department, University Hospital of Ferrara, Ferrara, Italy
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16
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Aimoni C, Bianchini C, Borin M, Ciorba A, Fellin R, Martini A, Scanelli G, Volpato S. Diabetes, cardiovascular risk factors and idiopathic sudden sensorineural hearing loss: a case-control study. Audiol Neurootol 2009; 15:111-5. [PMID: 19657186 DOI: 10.1159/000231636] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2008] [Accepted: 03/27/2009] [Indexed: 11/19/2022] Open
Abstract
AIMS/HYPOTHESIS Idiopathic sudden sensorineural hearing loss (ISSNHL) represents an acute inner ear disorder with an overall incidence of 5-20/100000 individuals per year in western countries. No clear causes for this disease have been found so far, but cochlear ischemia has been hypothesized as one of the etiopathological mechanisms. The aim of our study was to assess the role of diabetes and traditional cardiovascular risk factors in the pathogenesis of ISSNHL. MATERIALS/METHODS Case-control study of 141 patients (75 males/66 females) matched for age and gender. Cases were affected by ISSNHL, defined as a sudden hearing loss > or =30 dB, within 3 frequencies, developing over 72 h. The control group was composed of 271 sex- and age-matched subjects (142 males/129 females) who agreed to participate in this observational study and provided blood samples for laboratory investigations. Cardiovascular risk factors examined were: diabetes mellitus, smoking history, hypercholesterolemia, hypertriglyceridemia and hypertension. RESULTS On the univariate analysis, diabetes prevalence was higher in the ISSNHL group (15.6%) compared to controls (8.5%) (p = 0.03). Also hypercholesterolemia was significantly more frequent in the ISSNHL group compared to the control population. There were no statistically significant differences between the 2 populations concerning other cardiovascular risk factors. The risk of ISSNHL tended to increase as the number of cardiovascular risk factors increased (p for linear trend = 0.018). CONCLUSIONS Our findings suggest that diabetes mellitus, hypercholesterolemia and a high burden of cardiovascular risk factors are associated with the risk of ISSNHL.
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Affiliation(s)
- C Aimoni
- Audiology Department, University Hospital of Ferrara, Ferrara, Italy.
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17
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Morari F, Lugato E, Borin M. Agricultural land use and N losses to water: the case study of a fluvial park in northern Italy. Water Sci Technol 2003; 47:275-282. [PMID: 12793690] [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: 05/24/2023]
Abstract
An integrated water resource management programme has been under way since 1999 to reduce agricultural water pollution in the River Mincio fluvial park. The experimental part of the programme consisted of: a) a monitoring phase to evaluate the impact of conventional and environmentally sound techniques (Best Management Practices, BMPs) on water quality; this was done on four representative landscape units, where twelve fields were instrumented to monitor the soil, surface and subsurface water quality; b) a modelling phase to extend the results obtained at field scale to the whole territory of the Mincio watershed. For this purpose a GIS developed in the Arc/Info environment was integrated into the CropSyst model. The model had previously been calibrated to test its ability to describe the complexity of the agricultural systems. The first results showed a variable efficiency of the BMPs depending on the interaction between management and pedo-climatic conditions. In general though, the BMPs had positive effects in improving the surface and subsurface water quality. The CropSyst model was able to describe the agricultural systems monitored and its linking with the GIS represented a valuable tool for identifying the vulnerable areas within the watershed.
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Affiliation(s)
- F Morari
- DMPV, University of Padova, via Romea, 16, 35020 Legnaro (Pd), Italy.
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18
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Abstract
Controlled drainage and wetlands could be very effective practices to control nitrogen pollution in the low-lying agricultural plains of northeast Italy, but they are not as popular as in other countries. An experiment on lysimeters was therefore carried out in 1996-1998, with the double aim of obtaining local information to encourage the implementation of these practices and to gain more knowledge on the effects involved. Controlled drainage + subirrigation and wetlands were all considered as natural systems where alternative water table management could ameliorate water quality, and were compared with a typical water management scheme for crops in the open field. Eight treatments were considered: free drainage on maize (Zea mays L.) and sugarbeet (Beta vulgaris L.), two treatments of controlled drainage on the same crops, and five wetland treatments using common reed [Phragmites australis (Cav.) Trin. ex Steud.], common cattail (Typha latifolia L.), and tufted sedge (Carex elata All.), with different water table or flooding levels. Lysimeters received about 130 g m 2 of N with fertilization and irrigation water, with small differences among treatments. The effects of treatments were more evident for NO3-N concentrations than for the other chemical parameters (total Kjeldahl nitrogen, pH, and electrical conductivity), with significantly different medians among free drainage (33 mg L(-1)), controlled drainage (1.6 and 2.6 mg L(-1)), and wetlands (0.5-0.7 mg L(-1)). Referring to free drainage, NO3-N losses were reduced by 46 to 63% in controlled drainage and 95% in the average of wetlands. Wetlands also reduced losses of total dissolved solids from 253 g m(-2) (average of crop treatments) to 175 g m(-2) (average of wetlands).
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Affiliation(s)
- M Borin
- Dipartimento di Agronomia Ambientale e Produzioni Vegetali, Università di Padova, Legnaro (Pd), Italy.
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19
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Borin M, Bonaiti G, Santamaria G, Giardini L. A constructed surface flow wetland for treating agricultural waste waters. Water Sci Technol 2001; 44:523-530. [PMID: 11804144] [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: 05/23/2023]
Abstract
A study was conducted between December 1997 and December 1998 in NE Italy on a 3,200 m2 surface flow vegetated wetland receiving agricultural drainage water from a cultivated field of about 6 ha and occasional applications of organic wastes. The study aimed at evaluating: 1) biomass and seasonal nitrogen dynamics in above- and below-ground biomass of Phragmites australis Cav. (Trin.) and Typha latifolia (L.) grown in separate zones; 2) the effectiveness of the wetland in removing nutrients and sediments coming from the fields; 3) the possibility that wetland could treat occasional applications of organic wastes and 4) to collect some general information on whether the wetland can receive heavy loads coming from storm water runoff. Monthly observations showed that, in both species, aboveground biomass, nitrogen concentration and nitrogen content reached maximum values in summer and minimum values in winter. The contrary occurred in below-ground biomass. The total input of water in the wetland was 66,000 m3 ha(-1), of which 7,700 were drained. Total nitrogen input was 526 kg ha(-1), of which 58 were discharged out of the wetland.
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Affiliation(s)
- M Borin
- Dipartimento di Agronomia Ambientale e Produzioni Vegetali, Agripolis, Università di Padova, Legnaro (PD), Italy.
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20
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Gatti G, Malena M, Casazza R, Borin M, Bassetti M, Cruciani M. Penetration of clindamycin and its metabolite N-demethylclindamycin into cerebrospinal fluid following intravenous infusion of clindamycin phosphate in patients with AIDS. Antimicrob Agents Chemother 1998; 42:3014-7. [PMID: 9797245 PMCID: PMC105985 DOI: 10.1128/aac.42.11.3014] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Clindamycin, which is usually used in combination with pyrimethamine, has been proven effective in the treatment of cerebral toxoplasmosis in human immunodeficiency virus-infected patients. However, it is not known if clindamycin achieves inhibitory concentrations at the site of infection. Also, it has been hypothesized that the activity of clindamycin against Toxoplasma gondii may be due, at least in part, to a metabolite. We evaluated the penetration of clindamycin and its major metabolite, N-demethylclindamycin (NDC), into cerebrospinal fluid (CSF) of AIDS patients undergoing lumbar puncture for diagnostic purposes. A single, 1,200-mg dose of clindamycin was administered as a 45-min intravenous infusion beginning at 1.5 or 2.5 h before CSF sampling. The concentrations of clindamycin in CSF ranged from 0.091 to 0.429 mg/liter at 1.5 h and from 0.120 to 0.283 mg/liter at 2.5 h following the beginning of the infusion. The concentrations of clindamycin in CSF were well above the 50% inhibitory concentration of 0.001 mg/liter and the parasiticidal concentration of 0.006 mg/liter. NDC was undetectable both in plasma and in CSF. Our study provides a pharmacokinetic rationale for the clinical efficacy of clindamycin in the treatment of cerebral toxoplasmosis.
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Affiliation(s)
- G Gatti
- Infectious Diseases Institute, University of Genoa, Genoa, Italy
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21
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Abstract
The aim of this study was to assess the cytotoxicity of pure eugenol in an in vitro method by diluting it to various concentrations in alcohol and determining the maximum noncytotoxic concentration. We used solutions of eugenol and ethyl alcohol that are soluble in water in any given proportion. The cytotoxicity of the alcohol itself was determined by using a dose-response curve for concentrations of between 0.017 M and 1.7 M. Various strength concentrations (0.015 to 947 microM) of eugenol in alcohol were prepared; 20 microliters (0.34 M) of ethyl alcohol was added to 1 ml of cell medium. The experiment showed that pure eugenol is toxic for human gingival fibroblasts. Eugenol in an alcohol solution at concentrations of < 1.9 microM is noncytotoxic.
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Affiliation(s)
- R Gerosa
- Department of Endodontics, University of Verona School of Dentistry, Italy
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22
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Flaherty JF, Gatti G, White J, Bubp J, Borin M, Gambertoglio JG. Protein binding of clindamycin in sera of patients with AIDS. Antimicrob Agents Chemother 1996; 40:1134-8. [PMID: 8723453 PMCID: PMC163278 DOI: 10.1128/aac.40.5.1134] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [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: 02/01/2023] Open
Abstract
Patients with AIDS have altered pharmacokinetics of clindamycin compared with those of healthy control subjects. In an attempt to better understand these differences, we undertook a study of protein binding of clindamycin in sera of patients with AIDS. Fifteen patients with AIDS and 15 healthy volunteers were given a single 600-mg dose of clindamycin orally and intravenously, and serum samples were collected at three time points corresponding to high, midpoint, and low clindamycin concentrations. Protein binding was determined by ultrafiltration, and total and unbound clindamycin concentrations were measured with a gas chromatography assay. AIDS patients had alpha 1-acid glycoprotein values approximately twice those of healthy volunteers (mean +/- standard deviation, 103 +/- 27 versus 61 +/- 11 mg/dl; P = 0.001). Overall, serum protein binding levels were higher in AIDS patients (mean +/- standard deviation, 83 +/- 7 versus 78% +/- 8%; P = 0.0001), which is likely the result of increased alpha 1-acid glycoprotein levels in these patients. Total concentrations of clindamycin in plasma were significantly higher in AIDS patients at most time points studied, while unbound serum clindamycin concentrations did not differ among the groups at each sampling time after both oral and intravenous dosing. Increased protein binding may partly explain the altered pharmacokinetic disposition of clindamycin in AIDS patients; however, other factors cannot be excluded.
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Affiliation(s)
- J F Flaherty
- Division of Clinical Pharmacy, School of Pharmacy, University of California, San Francisco 94143-0622, USA.
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23
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Borin M, Sartori L. Barley, Soybean and Maize Production using Ridge Tillage, No-Tillage and Conventional Tillage in North-East Italy. ACTA ACUST UNITED AC 1995. [DOI: 10.1006/jaer.1995.1081] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abstract
Cell cultures of human gingival fibroblasts obtained from healthy patients were used to evaluate the toxicity of six different endodontic cements: AH-26, Pulp Canal Sealer, Rocanal-R2, Rocanal-R3, Bioseal, and Endomethasone. The toxicity was determined by measuring spectrophotometrically at 405 nm the colorimetric reaction of N-acetyl-beta-hexosaminidase, an endogenous enzyme, with the chromogenic substrate [p-nitrophenol-N-acetyl-beta-D-glucosamide (NAG)]. Severe cytotoxicity was observed in the 1- and 2-wk test solutions of AH-26. Pulp Canal Sealer and Endomethasone showed low cytotoxicity in the 1- and 2-wk test solutions at 24, 48, and 72 h. Moderate cytotoxicity was observed in the 1- and 2-wk test solutions of Bioseal, except at 48 and 72 h of 1-wk test solutions. Rocanal-R2 showed severe cytotoxicity in the 1-wk test solutions at 48 and 72 h, and in the 2-wk test solutions at 24, 48, and 72 h. Moderate cytotoxicity was seen in the 1- and 2-wk test solutions of Rocanal-R3 only at 24 h.
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Affiliation(s)
- R Gerosa
- Department of Endodontics and Restorative Dentistry, University of Verona, Italy
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25
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Gatti G, Flaherty J, Bubp J, White J, Borin M, Gambertoglio J. Comparative study of bioavailabilities and pharmacokinetics of clindamycin in healthy volunteers and patients with AIDS. Antimicrob Agents Chemother 1993; 37:1137-43. [PMID: 8517703 PMCID: PMC187917 DOI: 10.1128/aac.37.5.1137] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.7] [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: 01/31/2023] Open
Abstract
The absolute oral bioavailability and pharmacokinetics of clindamycin administered to 16 healthy volunteers and 16 patients with AIDS were compared. Clindamycin was given intravenously (i.v.) (Cleocin phosphate) at a dose of 600 mg as a 25-min infusion and orally (Cleocin hydrochloride) by use of a crossover design in both study groups. Plasma samples were analyzed by gas-liquid chromatography. Plasma drug clearance and volume of distribution at the steady state following the i.v. dose differed between study groups. The clearances were 0.27 +/- 0.06 liter/h/kg in healthy volunteers and 0.21 +/- 0.06 liter/h/kg in AIDS patients (P = 0.014; Mann-Whitney U test); the volumes of distribution at the steady state were 0.79 +/- 0.13 and 0.66 +/- 0.12 liter/kg in healthy volunteers and AIDS patients, respectively (P = 0.005). The elimination half-life did not differ between the two groups. The bioavailability of clindamycin capsules in AIDS patients was approximately 1.5 times that in healthy volunteers (0.53 +/- 0.14 versus 0.75 +/- 0.20; P = 0.002). Peak concentrations following the oral dose were higher in AIDS patients as well (7.7 +/- 2.5 versus 5.3 +/- 1.0 mg/liter; P = 0.0008). Three AIDS patients experienced severe diarrhea following the oral dose; four patients had mild diarrhea following the i.v. dose. No adverse effects were reported by the healthy volunteers. The pharmacokinetic parameters observed in this study for AIDS patients may be useful for the consideration of clindamycin dosage regimens in patients treated for toxoplasmic encephalitis. These findings suggest that the effect of AIDS on drug disposition deserves further investigation, particularly for orally administered drugs.
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Affiliation(s)
- G Gatti
- Division of Clinical Pharmacy, School of Pharmacy, University of California-San Francisco 94143
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26
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Borin M, Siffert W. Further characterization of the mechanisms mediating the rise in cytosolic free Na+ in thrombin-stimulated platelets. Evidence for inhibition of the Na+,K(+)-ATPase and for Na+ entry via a Ca2+ influx pathway. J Biol Chem 1991; 266:13153-60. [PMID: 1649180] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Human platelets were loaded with the fluorescent Na(+)-sensitive dye sodium-binding benzofuran isophtalate (SBFI), and changes in the fluorescence excited at 345 and 385 nm were analyzed after manipulations that evoked predictable changes in the cytosolic Na+ concentration ([Na+]i). Raising [Na+]i by either gramicidin D or monensin specifically increased the fluorescence excited at 345 nm and decreased that excited at 385 nm. Hence, calculation of changes in the 345/385 nm excitation ratio yields an estimate of actual changes in [Na+]i. A transient activation of Na+/H+ exchange evoked by addition of acidified platelets to buffer, pH 7.4, evoked a transient rise in [Na+]i. The re-establishment of basal [Na+]i could be prevented by ouabain, indicating an involvement of the Na+,K(+)-ATPase. Upon stimulation by 0.5 unit/ml of thrombin, [Na+]i immediately increased by 16 +/- 4 mM and this rise continued for at least 60 min after addition of agonist, albeit at a lower rate. This latter sustained rise could not be curtailed by scavenging thrombin by means of hirudin. Addition of ouabain or the phorbol ester 12-O-tetradecanoylphorbol-13-acetate induced a comparable slow rise in the 345/385 excitation ratio. This may indicate a protein kinase C-mediated inhibition by thrombin of the Na+,K(+)-ATPase. In the absence of extracellular Ca2+ (Ca2+o), the [Na+]i gain was augmented to 38 +/- 9 mM. This additional uptake of Na+ was prevented by (i) Mn2+ ions, (ii) La3+ ions, (iii) the blocker of receptor-mediated Ca2+ entry (1-[beta[3-(4-methoxyphenyl)propoxyl]-4-methoxyphenethyl]-1H-im ida zole hydrochloride), and (iv) by hirudin which reversed receptor occupancy by thrombin. These findings suggest that the additional thrombin-induced [Na+]i gain in the absence of Ca2+o is due to Na+ influx through a Ca2+ entry pathway. The increase in [Na+]i in the presence of Ca2+o results from Na+ influx via Na+/H+ exchange.
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Affiliation(s)
- M Borin
- Max-Planck-Institut für Biophysik, Frankfurt/Main, Federal Republic of Germany
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27
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Borin M, Siffert W. Stimulation by thrombin increases the cytosolic free Na+ concentration in human platelets. Studies with the novel fluorescent cytosolic Na+ indicator sodium-binding benzofuran isophthalate. J Biol Chem 1990; 265:19543-50. [PMID: 2174043] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The new fluorescent Na+ indicator sodium-binding benzofuran isophthalate (SBFI) was used for determination of the cytosolic free Na+ concentration, [Na+]i, in human platelets. The dye could be loaded into platelets in the form of its acetoxymethyl ester (SBFI-AM). Calibration of the fluorescence in terms of [Na+]i was done by measuring the 345/385 nm excitation ratio (emission 490 nm) at various extracellular Na+ concentrations, [Na+]o, in the presence of gramicidin D. The 345/385 intensity ratio increased almost linearly when [Na+]i was stepwise raised from 20 to 60 mM. The basal value for [Na+]i was found to be 26.0 +/- 4.5 mM (n = 15). Incubation of platelets in Na(+)-free buffer decreased [Na+]i, whereas inhibition of the (Na+ + K+)-ATPase by 0.5 mM ouabain increased [Na+]i to 56 +/- 4 mM (n = 4) within 60 min. Activation of Na+/H+ exchange by exposing platelets to propionic acid also raised [Na+]i, and a comparable effect was produced by the Na+/H+ ionophore monensin. Activation of platelets with thrombin (0.1-0.5 unit/ml) also increased the 345/385 nm intensity ratio, an effect that was not seen in Na(+)-free buffer or after raising intracellular cAMP by treatment of platelets with prostaglandin E1. On the average, [Na+]i was raised to 59.5 +/- 5.3 mM (n = 15) at 10 min after addition of thrombin without a significant decrease for further 10 min. An increase in [Na+]i was also seen when platelets were challenged with the Ca2+ ionophore ionomycin, an effect that did not occur in the absence of Na+o. Our findings confirm earlier reports which demonstrated a rise in [Na+]i in stimulated platelets and show that SBFI is a useful tool for determination of [Na+]i in resting and stimulated platelets.
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Affiliation(s)
- M Borin
- Max-Planck-Institut für Biophysik, Frankfurt/Main, Federal Republic of Germany
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28
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Borin M, Siffert W. Stimulation by thrombin increases the cytosolic free Na+ concentration in human platelets. Studies with the novel fluorescent cytosolic Na+ indicator sodium-binding benzofuran isophthalate. J Biol Chem 1990. [DOI: 10.1016/s0021-9258(17)45406-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Abstract
Five hundred and thirteen clinical specimens, mainly from patients with urogenital inflammations, were examined for Ureaplasma urealyticum and mycoplasmas, including cultures for Mycoplasma genitalium. The study yielded 95 isolates of Ureaplasma urealyticum, 37 isolates of Mycoplasma hominis and two isolates of Mycoplasma fermentans, but no growth of Mycoplasma genitalium was obtained. It was concluded that Mycoplasma genitalium is a relatively rare inhabitant of the human urogenital tract in Israel.
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Affiliation(s)
- Z Samra
- Reference Laboratory for Mycoplasma, Assaf Harofe Hospital, Zerifin, Israel
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30
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Baggio B, Borin M, Piccoli A, Biciato L, Favaro S, Borsatti A. [Urinary calculosis. Degree of saturation and inhibitors under conditions of hypertonic, normotonic and hypotonic expansion of extracellular liquids]. Minerva Nefrol 1980; 27:259-62. [PMID: 7219847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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