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Caproni E, Corbellari R, Tomasi M, Isaac SJ, Tamburini S, Zanella I, Grigolato M, Gagliardi A, Benedet M, Baraldi C, Croia L, Di Lascio G, Berti A, Valensin S, Bellini E, Parri M, Grandi A, Grandi G. Anti-Tumor Efficacy of In Situ Vaccination Using Bacterial Outer Membrane Vesicles. Cancers (Basel) 2023; 15:3328. [PMID: 37444437 DOI: 10.3390/cancers15133328] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/16/2023] [Accepted: 06/20/2023] [Indexed: 07/15/2023] Open
Abstract
In situ vaccination (ISV) is a promising cancer immunotherapy strategy that consists of the intratumoral administration of immunostimulatory molecules (adjuvants). The rationale is that tumor antigens are abundant at the tumor site, and therefore, to elicit an effective anti-tumor immune response, all that is needed is an adjuvant, which can turn the immunosuppressive environment into an immunologically active one. Bacterial outer membrane vesicles (OMVs) are potent adjuvants since they contain several microbe-associated molecular patterns (MAMPs) naturally present in the outer membrane and in the periplasmic space of Gram-negative bacteria. Therefore, they appear particularly indicted for ISV. In this work, we first show that the OMVs from E. coli BL21(DE3)Δ60 strain promote a strong anti-tumor activity when intratumorally injected into the tumors of three different mouse models. Tumor inhibition correlates with a rapid infiltration of DCs and NK cells. We also show that the addition of neo-epitopes to OMVs synergizes with the vesicle adjuvanticity, as judged by a two-tumor mouse model. Overall, our data support the use of the OMVs in ISV and indicate that ISV efficacy can benefit from the addition of properly selected tumor-specific neo-antigens.
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Affiliation(s)
- Elena Caproni
- Toscana Life Sciences Foundation, Via Fiorentina 1, 53100 Siena, Italy
| | - Riccardo Corbellari
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Michele Tomasi
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Samine J Isaac
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Silvia Tamburini
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Ilaria Zanella
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Martina Grigolato
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Assunta Gagliardi
- Toscana Life Sciences Foundation, Via Fiorentina 1, 53100 Siena, Italy
| | - Mattia Benedet
- Toscana Life Sciences Foundation, Via Fiorentina 1, 53100 Siena, Italy
| | - Chiara Baraldi
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Lorenzo Croia
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | | | - Alvise Berti
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Silvia Valensin
- Toscana Life Sciences Foundation, Via Fiorentina 1, 53100 Siena, Italy
| | - Erika Bellini
- Toscana Life Sciences Foundation, Via Fiorentina 1, 53100 Siena, Italy
| | - Matteo Parri
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Viale Morgagni 50, 50134 Florence, Italy
| | - Alberto Grandi
- Toscana Life Sciences Foundation, Via Fiorentina 1, 53100 Siena, Italy
- BiOMViS Srl, Via Fiorentina 1, 53100 Siena, Italy
| | - Guido Grandi
- Department of Cellular, Computational and Integrative Biology (CIBIO), University of Trento, Via Sommarive 9, 38123 Trento, Italy
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2
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Altamura C, Ornello R, Ahmed F, Negro A, Miscio AM, Santoro A, Alpuente A, Russo A, Silvestro M, Cevoli S, Brunelli N, Grazzi L, Baraldi C, Guerzoni S, Andreou AP, Lambru G, Frattale I, Kamm K, Ruscheweyh R, Russo M, Torelli P, Filatova E, Latysheva N, Gryglas-Dworak A, Straburzynski M, Butera C, Colombo B, Filippi M, Pozo-Rosich P, Martelletti P, Sacco S, Vernieri F. OnabotulinumtoxinA in elderly patients with chronic migraine: insights from a real-life European multicenter study. J Neurol 2023; 270:986-994. [PMID: 36326890 DOI: 10.1007/s00415-022-11457-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 07/19/2022] [Revised: 10/17/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
INTRODUCTION Although migraine prevalence decreases with aging, some older patients still suffer from chronic migraine (CM). This study aimed to investigate the outcome of OnabotulinumtoxinA (OBT-A) as preventative therapy in elderly CM patients. METHODS This is a post hoc analysis of real-life prospectively collected data at 16 European headache centers on CM patients treated with OBT-A over the first three treatment cycles (i.e., Cy1-3). We defined: OLD patients aged ≥ 65 years and nonOLD those < 65-year-old. The primary endpoint was the changes in monthly headache days (MHDs) from baseline to Cy 1-3 in OLD compared with nonOLD participants. The secondary endpoints were the responder rate (RR) ≥ 50%, conversion to episodic migraine (EM) and the changes in days with acute medication use (DAMs). RESULTS In a cohort of 2831 CM patients, 235 were OLD (8.3%, 73.2% females, 69.6 years SD 4.7). MHDs decreased from baseline (24.8 SD 6.2) to Cy-1 (17.5 SD 9.1, p < 0.000001), from Cy-1 to Cy-2 (14.8 SD 9.2, p < 0.0001), and from Cy-2 to Cy-3 (11.9 SD 7.9, p = 0.001). DAMs progressively reduced from baseline (19.2 SD 9.8) to Cy-1 (11.9 SD 8.8, p < 0.00001), to Cy-2 (10.9 SD 8.6, p = 0.012), to Cy-3 (9.6 SD 7.4, p = 0.049). The 50%RR increased from 30.7% (Cy-1) to 34.5% (Cy-2), to 38.7% (Cy-3). The above outcome measures did not differ in OLD compared with nonOLD patients. CONCLUSION In a population of elderly CM patients with a long history of migraine OBT-A provided a significant benefit, over the first three treatment cycles, as good as in non-old patients.
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Affiliation(s)
- Claudia Altamura
- Unit of Headache and Neurosonology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128, Rome, Italy.
- Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200, 00128, Rome, Italy.
| | - R Ornello
- Neuroscience Section, Department of Applied Clinical Sciences and Biotechnology, University of L'Aquila, Via Vetoio 1 Coppito, 67100, L'Aquila, Italy
| | - F Ahmed
- Department of Neurosciences, Hull University Teaching Hospitals, Hull, UK
| | - A Negro
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University, 00189, Rome, RM, Italy
| | - A M Miscio
- Unit of Neurology, Headache Center, Fondazione IRCCS "Casa Sollievo Della Sofferenza", San Giovanni Rotondo, FG, Italy
| | - A Santoro
- Unit of Neurology, Headache Center, Fondazione IRCCS "Casa Sollievo Della Sofferenza", San Giovanni Rotondo, FG, Italy
| | - A Alpuente
- Headache Unit, Department of Neurology, Vall d'Hebron University, Barcelona, Spain
- Headache and Neurological Pain Research Group, Department of Medicine, Vall d'Hebron Institute of Research (VHIR), Universitat Autonoma de Barcelona, Barcelona, Spain
| | - A Russo
- Department of Medical, Surgical, Neurological, Metabolic, and Aging Sciences, Headache Center, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - M Silvestro
- Department of Medical, Surgical, Neurological, Metabolic, and Aging Sciences, Headache Center, University of Campania "Luigi Vanvitelli", Naples, Italy
| | - S Cevoli
- IRCCS Istituto delle scienze Neurologiche di Bologna, Bologna, Italy
| | - N Brunelli
- Unit of Headache and Neurosonology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128, Rome, Italy
- Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200, 00128, Rome, Italy
| | - L Grazzi
- Neurology Department, Headache Center, IRCCS Foundation "Carlo Besta" Neurological Institute, Via Celoria,11, 20133, Milan, Italy
| | - C Baraldi
- Digital and Predictive Medicine, Pharmacology and Clinical Metabolic Toxicology-Headache Center and Drug Abuse, Laboratory of Clinical Pharmacology and Pharmacogenomics, Department of Specialist Medicines, AOU Policlinico Di Modena, Modena, Italy
| | - S Guerzoni
- Digital and Predictive Medicine, Pharmacology and Clinical Metabolic Toxicology-Headache Center and Drug Abuse, Laboratory of Clinical Pharmacology and Pharmacogenomics, Department of Specialist Medicines, AOU Policlinico Di Modena, Modena, Italy
| | - A P Andreou
- Headache Service, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - G Lambru
- Headache Service, Guy's and St Thomas' NHS Foundation Trust, London, UK
| | - I Frattale
- Neuroscience Section, Department of Applied Clinical Sciences and Biotechnology, University of L'Aquila, Via Vetoio 1 Coppito, 67100, L'Aquila, Italy
| | - K Kamm
- Department of Neurology, Ludwig Maximilians University München, Munich, Germany
| | - R Ruscheweyh
- Department of Neurology, Ludwig Maximilians University München, Munich, Germany
- Department of Psychosomatic Medicine and Psychotherapy, Technical University of Munich, Munich, Germany
| | - M Russo
- Neurology Unit, Neuromotor and Rehabilitation Department, Headache Center, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | - P Torelli
- Headache Center, University of Parma, Parma, Italy
| | - E Filatova
- Department of Neurology, Institute for Postgraduate Education, Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | | | | | - M Straburzynski
- Headache Clinic, Terapia Neurologiczna Samodzielni, Maurycego Mochnackiego 10, 02-042, Warsaw, Poland
| | - C Butera
- Neurophysiology Service, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - B Colombo
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - M Filippi
- Neurophysiology Service, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Neurology Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Neurorehabilitation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - P Pozo-Rosich
- Headache Unit, Department of Neurology, Vall d'Hebron University, Barcelona, Spain
- Headache and Neurological Pain Research Group, Department of Medicine, Vall d'Hebron Institute of Research (VHIR), Universitat Autonoma de Barcelona, Barcelona, Spain
| | - P Martelletti
- Department of Clinical and Molecular Medicine, Faculty of Medicine and Psychology, Sant'Andrea Hospital, Sapienza University, 00189, Rome, RM, Italy
| | - S Sacco
- Neuroscience Section, Department of Applied Clinical Sciences and Biotechnology, University of L'Aquila, Via Vetoio 1 Coppito, 67100, L'Aquila, Italy
| | - F Vernieri
- Unit of Headache and Neurosonology, Department of Medicine and Surgery, Università Campus Bio-Medico di Roma, Via Alvaro del Portillo, 21, 00128, Rome, Italy
- Fondazione Policlinico Universitario Campus Bio-Medico, Via Alvaro del Portillo, 200, 00128, Rome, Italy
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3
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Filippi F, Baraldi C, Zinzani P, Casadei B, Pileri A. A case of pityriasis lichenoides et varioliformis acuta developed after first dose of Oxford-AstraZeneca COVID-19 vaccine. J Eur Acad Dermatol Venereol 2022; 36:e747-e749. [PMID: 35617206 PMCID: PMC9348115 DOI: 10.1111/jdv.18269] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 05/18/2022] [Indexed: 01/19/2023]
Affiliation(s)
- F. Filippi
- Department of Experimental, Diagnostic and Specialty MedicineAlma Mater Studiorum University of BolognaBolognaItaly,Dermatology UnitIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
| | - C. Baraldi
- Department of Experimental, Diagnostic and Specialty MedicineAlma Mater Studiorum University of BolognaBolognaItaly,Dermatology UnitIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
| | - P.L. Zinzani
- IRCCS Azienda Ospedaliero, Istituto di Ematologia ‘Seràgnoli’Università di BolognaBolognaItaly
| | - B. Casadei
- IRCCS Azienda Ospedaliero, Istituto di Ematologia ‘Seràgnoli’Università di BolognaBolognaItaly
| | - A. Pileri
- Department of Experimental, Diagnostic and Specialty MedicineAlma Mater Studiorum University of BolognaBolognaItaly,Dermatology UnitIRCCS Azienda Ospedaliero‐Universitaria di BolognaBolognaItaly
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Pizzato M, Baraldi C, Boscato Sopetto G, Finozzi D, Gentile C, Gentile MD, Marconi R, Paladino D, Raoss A, Riedmiller I, Ur Rehman H, Santini A, Succetti V, Volpini L. SARS-CoV-2 and the Host Cell: A Tale of Interactions. Front Virol 2022. [DOI: 10.3389/fviro.2021.815388] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The ability of a virus to spread between individuals, its replication capacity and the clinical course of the infection are macroscopic consequences of a multifaceted molecular interaction of viral components with the host cell. The heavy impact of COVID-19 on the world population, economics and sanitary systems calls for therapeutic and prophylactic solutions that require a deep characterization of the interactions occurring between virus and host cells. Unveiling how SARS-CoV-2 engages with host factors throughout its life cycle is therefore fundamental to understand the pathogenic mechanisms underlying the viral infection and to design antiviral therapies and prophylactic strategies. Two years into the SARS-CoV-2 pandemic, this review provides an overview of the interplay between SARS-CoV-2 and the host cell, with focus on the machinery and compartments pivotal for virus replication and the antiviral cellular response. Starting with the interaction with the cell surface, following the virus replicative cycle through the characterization of the entry pathways, the survival and replication in the cytoplasm, to the mechanisms of egress from the infected cell, this review unravels the complex network of interactions between SARS-CoV-2 and the host cell, highlighting the knowledge that has the potential to set the basis for the development of innovative antiviral strategies.
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5
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Dika E, Barisani A, Baraldi C, Pepe F, Patrizi A, Vaccari S. COVID-19 and melanoma surgery in a dermo-oncology centre in Italy. Clin Exp Dermatol 2021; 46:1134. [PMID: 33837580 PMCID: PMC8251215 DOI: 10.1111/ced.14675] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 04/07/2021] [Indexed: 12/22/2022]
Affiliation(s)
- E Dika
- Department of Dermatology, IRCCS Policlinico di Sant'Orsola, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum University of Bologna, Italy
| | - A Barisani
- Department of Dermatology, IRCCS Policlinico di Sant'Orsola, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum University of Bologna, Italy
| | - C Baraldi
- Department of Dermatology, IRCCS Policlinico di Sant'Orsola, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum University of Bologna, Italy
| | - F Pepe
- Department of Dermatology, IRCCS Policlinico di Sant'Orsola, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum University of Bologna, Italy
| | - A Patrizi
- Department of Dermatology, IRCCS Policlinico di Sant'Orsola, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum University of Bologna, Italy
| | - S Vaccari
- Department of Dermatology, IRCCS Policlinico di Sant'Orsola, Bologna, Italy.,Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum University of Bologna, Italy
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Castellucci P, Savoia F, Farina A, Lima GM, Patrizi A, Baraldi C, Zagni F, Vichi S, Pettinato C, Morganti AG, Strigari L, Fanti S. Correction to: High dose brachytherapy with non sealed 188Re (rhenium) resin in patients with non-melanoma skin cancers (NMSCs): single center preliminary results. Eur J Nucl Med Mol Imaging 2021; 48:1706. [PMID: 33871669 DOI: 10.1007/s00259-021-05363-7] [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: 10/21/2022]
Affiliation(s)
- Paolo Castellucci
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy.
| | - F Savoia
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - A Farina
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - G M Lima
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - A Patrizi
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - C Baraldi
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - F Zagni
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - S Vichi
- Department of Industrial Engineering, Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - C Pettinato
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy.,Medical Physics Unit, Fondazione IRCCS Ca Granda Ospedale Maggiore Milano, Milan, Italy
| | - A G Morganti
- Radiation Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - L Strigari
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - S Fanti
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
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7
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Castellucci P, Savoia F, Farina A, Lima GM, Patrizi A, Baraldi C, Zagni F, Vichi S, Pettinato C, Morganti AG, Strigari L, Fanti S. High dose brachytherapy with non sealed 188Re (rhenium) resin in patients with non-melanoma skin cancers (NMSCs): single center preliminary results. Eur J Nucl Med Mol Imaging 2020; 48:1511-1521. [PMID: 33140131 PMCID: PMC8113182 DOI: 10.1007/s00259-020-05088-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 08/17/2020] [Accepted: 10/20/2020] [Indexed: 12/02/2022]
Abstract
Background and aim High dose brachytherapy using a non sealed 188Re-resin (Rhenium-SCT®, Oncobeta® GmbH, Munich, Germany) is a treatment option for non-melanoma skin cancer (NMSC). The aim of this prospective study was to assess the efficacy and the safety of a single application of Rhenium-SCT® in NMSC. Materials and method Fifty consecutive patients (15F, 35 M, range of age 56–97, mean 81) showing 60 histologically proven NMSCs were enrolled and treated with the Rhenium-SCT® between October 2017 and January 2020. Lesions were located on the face, ears, nose or scalp (n = 46), extremities (n = 9), and trunk (n = 5). Mean surface areas were 7.0 cm2 (1–36 cm2), mean thickness invasion was 1.1 mm (0.2–2.5 mm), and mean treatment time was 79 min (21–85 min). Superficial, mean, and target absorbed dose were 185 Gy, 63 Gy, and 31 Gy respectively. Patients were followed-up at 14, 30, 60, 90, and 180 days posttreatment, when dermoscopy and biopsy were performed. Mean follow-up was 20 months (range 3–33 months). Early skin toxicity was classified according to Common Terminology Criteria for Adverse Events (CTCAE). Cosmetic results were evaluated after at least 12 months according to Radiation Therapy Oncology Group (RTOG) scale. Results At 6 months follow-up, histology and dermoscopy were available for 54/60 lesions, of which 53/54 (98%) completely responded. One patient showed a 1-cm2 residual lesion that was subsequently surgically excised. Twelve months after treatment, 41/41 evaluable lesions were free from relapse. Twenty four months after treatment, 23/24 evaluable lesions were free of relapse. In 56/60 lesions early side effects, resolving within 32 days were classified as grades 1–2 (CTCAE). In the remaining 4/60 lesions, these findings were classified as grade 3 (CTCAE) and lasted up to 8–12 weeks but all resolved within 90 days. After at least 12 months (12–33 months), cosmetic results were excellent (30 lesions) or good (11 lesions). Conclusion High dose brachytherapy with Rhenium-SCT® is a noninvasive, reasonably safe, easy to perform, effective and well-tolerated approach to treat NMSCs, and it seems to be a useful alternative option when surgery or radiation therapy are difficult to perform or not recommended. In our population 98% of the treated lesions resolved completely after a single application and only one relapsed after 2 years. Larger patients’ population and longer follow-up are needed to confirm these preliminary data and to find the optimal dose to administer in order to achieve complete response without significant side effects.
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Affiliation(s)
- Paolo Castellucci
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy.
| | - F Savoia
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - A Farina
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - G M Lima
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - A Patrizi
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - C Baraldi
- Dermatology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - F Zagni
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - S Vichi
- Department of Industrial Engineering, Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - C Pettinato
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy.,Medical Physics Unit, Fondazione IRCCS Ca Granda Ospedale Maggiore Milano, Milan, Italy
| | - A G Morganti
- Radiation Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - L Strigari
- Medical Physics, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
| | - S Fanti
- Nuclear Medicine, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Via Massarenti 9, 40138, Bologna, Italy
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Starace M, Guicciardi F, Alessandrini A, Baraldi C, Ravaioli GM, Bruni F, Piraccini BM. Long-standing patchy alopecia areata along the hairline, a variety of alopecia areata mimicking frontal fibrosing alopecia and other cases of hair loss: case series of 11 patients. J Eur Acad Dermatol Venereol 2019; 34:e186-e188. [PMID: 31758714 DOI: 10.1111/jdv.16105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- M Starace
- Division of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | | | - A Alessandrini
- Division of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - C Baraldi
- Division of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - G M Ravaioli
- Division of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - F Bruni
- Division of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - B M Piraccini
- Division of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
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9
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Chessa MA, Malosso M, Pepe F, Patrizi A, Telo S, Ambrosini V, Fanti S, Magnano M, Baraldi C, Corti B, Filippi F, Vaccari S, Pileri A, Bardazzi F. Merkel cell carcinoma: a prompt diagnosis to increase survival. J Eur Acad Dermatol Venereol 2019; 33:e478-e480. [PMID: 31310359 DOI: 10.1111/jdv.15805] [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] [Received: 05/21/2019] [Revised: 07/01/2019] [Accepted: 07/09/2019] [Indexed: 11/28/2022]
Affiliation(s)
- M A Chessa
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - M Malosso
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - F Pepe
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - A Patrizi
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - S Telo
- Nuclear Medicine, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - V Ambrosini
- Nuclear Medicine, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - S Fanti
- Nuclear Medicine, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - M Magnano
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - C Baraldi
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - B Corti
- Department of Pathology, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - F Filippi
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - S Vaccari
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - A Pileri
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - F Bardazzi
- Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
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10
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Sacchelli L, Tengattini V, Baraldi C, Filippi F, Loi C, Ferrara F, Patrizi A, Bardazzi F. Idiopathic granulomatous vulvitis and subsequent oral granulomatosis: a diagnostic and therapeutic challenge. Clin Exp Dermatol 2019; 44:229-231. [DOI: 10.1111/ced.13746] [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] [Accepted: 04/05/2018] [Indexed: 11/27/2022]
Affiliation(s)
- L. Sacchelli
- Department of Specialized, Clinical and Experimental Medicine; Division of Dermatology; University of Bologna; Via Massarenti 1 Bologna 40138 Italy
| | - V. Tengattini
- Department of Specialized, Clinical and Experimental Medicine; Division of Dermatology; University of Bologna; Via Massarenti 1 Bologna 40138 Italy
| | - C. Baraldi
- Department of Specialized, Clinical and Experimental Medicine; Division of Dermatology; University of Bologna; Via Massarenti 1 Bologna 40138 Italy
| | - F. Filippi
- Department of Specialized, Clinical and Experimental Medicine; Division of Dermatology; University of Bologna; Via Massarenti 1 Bologna 40138 Italy
| | - C. Loi
- Department of Specialized, Clinical and Experimental Medicine; Division of Dermatology; University of Bologna; Via Massarenti 1 Bologna 40138 Italy
| | - F. Ferrara
- Department of Specialized, Clinical and Experimental Medicine; Division of Dermatology; University of Bologna; Via Massarenti 1 Bologna 40138 Italy
| | - A. Patrizi
- Department of Specialized, Clinical and Experimental Medicine; Division of Dermatology; University of Bologna; Via Massarenti 1 Bologna 40138 Italy
| | - F. Bardazzi
- Department of Specialized, Clinical and Experimental Medicine; Division of Dermatology; University of Bologna; Via Massarenti 1 Bologna 40138 Italy
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11
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Chessa MA, Alessandrini A, Starace M, Baraldi C, Dahdah M, Andre J, Richert B, Piraccini BM. Erosive lichen planus: beyond the nails. J Eur Acad Dermatol Venereol 2018; 33:e97-e99. [PMID: 30242909 DOI: 10.1111/jdv.15254] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M A Chessa
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - A Alessandrini
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - M Starace
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - C Baraldi
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - M Dahdah
- Department of Dermatology, American University of Beirut Medical Center, Beirut, Lebanon
| | - J Andre
- Saint Pierre, Brugmann and Children's University Hospitals, Université Libre de Bruxelles, Brussels, Belgium
| | - B Richert
- Saint Pierre, Brugmann and Children's University Hospitals, Université Libre de Bruxelles, Brussels, Belgium
| | - B M Piraccini
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
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12
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Baraldi C, Corti B, Lambertini M, Fanti PA, Patrizi A, Dika E. Large plaque-type blue naevus with cellular nodules: a rare unrecognized melanocytic tumour. J Eur Acad Dermatol Venereol 2017; 32:e132-e133. [PMID: 29024276 DOI: 10.1111/jdv.14634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 09/22/2017] [Indexed: 12/01/2022]
Affiliation(s)
- C Baraldi
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - B Corti
- Pathology Unit, Department of Diagnostic and Prevention Medicine, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - M Lambertini
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - P A Fanti
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - A Patrizi
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
| | - E Dika
- Dermatology Unit, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy
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13
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Lambertini M, Patrizi A, Fanti P, Melotti B, Caliceti U, Magnoni C, Misciali C, Baraldi C, Ravaioli G, Dika E. Oral melanoma and other pigmentations: when to biopsy? J Eur Acad Dermatol Venereol 2017; 32:209-214. [DOI: 10.1111/jdv.14574] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 08/16/2017] [Indexed: 12/13/2022]
Affiliation(s)
- M. Lambertini
- Dermatology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
| | - A. Patrizi
- Dermatology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
| | - P.A. Fanti
- Dermatology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
| | - B. Melotti
- Medical Oncology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
| | - U. Caliceti
- Otorhinolaryngology Unit; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
| | - C. Magnoni
- Department of Skin and Venereal Diseases; University of Modena and Reggio Emilia; Modena Italy
| | - C. Misciali
- Dermatology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
| | - C. Baraldi
- Dermatology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
| | - G.M. Ravaioli
- Dermatology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
| | - E. Dika
- Dermatology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
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14
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Lambertini M, Dika E, Ravaioli GM, Chessa MA, Traniello Gradassi A, Baraldi C, Fanti PA, Patrizi A. 'Scaly' tattoo reactions: is treatment mandatory? Clin Exp Dermatol 2017; 42:347-348. [PMID: 28239888 DOI: 10.1111/ced.13062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2016] [Indexed: 11/26/2022]
Affiliation(s)
- M Lambertini
- Department of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via Massarenti 1, Bologna, Italy
| | - E Dika
- Department of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via Massarenti 1, Bologna, Italy
| | - G M Ravaioli
- Department of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via Massarenti 1, Bologna, Italy
| | - M A Chessa
- Department of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via Massarenti 1, Bologna, Italy
| | - A Traniello Gradassi
- Department of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via Massarenti 1, Bologna, Italy
| | - C Baraldi
- Department of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via Massarenti 1, Bologna, Italy
| | - P A Fanti
- Department of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via Massarenti 1, Bologna, Italy
| | - A Patrizi
- Department of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via Massarenti 1, Bologna, Italy
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15
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Dika E, Fanti PA, Venturi M, Baraldi C, Patrizi A. Non-melanoma skin cancer: to Mohs or not to Mohs? GIORN ITAL DERMAT V 2015; 150:630-632. [PMID: 26333559] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- E Dika
- Dermatology, Department of Specialized, Experimental and Diagnostic Medicine, Sant' Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy -
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16
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Baraldi C, Tinti A, Ottani S, Gamberini MC. Characterization of polymorphic ampicillin forms. J Pharm Biomed Anal 2014; 100:329-340. [PMID: 25194347 DOI: 10.1016/j.jpba.2014.08.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [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: 05/19/2014] [Revised: 08/12/2014] [Accepted: 08/15/2014] [Indexed: 11/24/2022]
Abstract
In this work polymorphs of α-aminobenzylpenicillin (ampicillin), a β-lactamic antibiotic, were prepared and investigated by several experimental and theoretical methods. Amorphous monohydrate and three crystalline forms, the trihydrate, the crystal form I and the crystal form II, were investigated by FT-IR and micro-Raman. Also data obtained by differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), X-ray powder diffraction (XRPD) and hot-stage Raman spectroscopy are reported. Finally, quantum mechanical calculations were performed by density functional theory (DFT) to assist the assignment of spectroscopic experimental bands. For the first time, the ampicillin molecule in its zwitterionic form was studied at the B3LYP/aug-cc-pVDZ level and the corresponding theoretical vibrational spectra were computed. In fact, ampicillin in the crystal is in zwitterionic form and concentrations of this same form are quite relevant in solutions at physiological pH. Experimental and theoretical results allowed identification of specific features for polymorph characterization. Bands typical of the different polymorphs are identified both in IR and Raman spectra: in particular in the NH stretching region (IR), in the amide I+δNH region (both techniques), in the 1520-1490cm(-1) region (IR), in the 1320-1300cm(-1) and 1280-1220cm(-1) (IR), in the 1200-1170cm(-1) (Raman), in the amide V region (IR), and, finally, in the 715-640cm(-1) and 220-200cm(-1) (Raman). Interconversion among different polymorphs was investigated by hot-stage Raman spectroscopy and thermal analysis, clarifying the complex pattern of transformations undergone as a function of temperature and heating rate. In particular, DSC scans show how the trihydrate crystals transform into anhydrous forms on heating. Finally, stability tests demonstrated, after a two years period, that no transformation or degradation of the polymorphs occurred.
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Affiliation(s)
- C Baraldi
- Department of Life Sciences, University of Modena and Reggio Emilia, via Campi n.183, 41125 Modena, Italy
| | - A Tinti
- Department of Biomedical and Neuromotor Sciences, University of Bologna, via Belmeloro 8/2, 40126 Bologna, Italy
| | - S Ottani
- Istituto per la Sintesi Organica e la Fotoreattività, ISOF-CNR, via P. Gobetti 101, 40129 Bologna, Italy
| | - M C Gamberini
- Department of Life Sciences, University of Modena and Reggio Emilia, via Campi n.183, 41125 Modena, Italy.
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Marangoni A, D’Antuono A, Filippini A, Bellavista S, Baraldi C, Foschi C, Nardini P, Compri M, Cevenini R. P2.013 Lymphogranuloma Venereum Cases Identified in Patients Attending a STD Outpatients Clinic in Italy. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0278] [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: 11/03/2022]
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18
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Marangoni A, Nardini P, Compri M, Foschi C, D’Antuono A, Filippini A, Baraldi C, Baraldi C, Cevenini R. P5.070 Diagnosis of Pharyngeal and Rectal Neisseria GonorrhoeaeInfections. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.1114] [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: 11/03/2022]
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Baraldi C, Freguglia G, Tinti A, Sparta M, Alexandrova AN, Gamberini MC. IR, Raman and SERS spectra of propantheline bromide. Spectrochim Acta A Mol Biomol Spectrosc 2013; 103:1-10. [PMID: 23228825 DOI: 10.1016/j.saa.2012.10.070] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2011] [Revised: 08/06/2012] [Accepted: 10/27/2012] [Indexed: 06/01/2023]
Abstract
The two known propantheline bromide polymorphs (form I and form II) were studied and characterized by a multianalytical approach. In the present work, the identification of propantheline bromide polymorphic forms through vibrational IR spectroscopies are presented and for the first time Raman microscopy and hot stage Raman microscopy (HSRM) studies are reported. Finally, quantum mechanical calculations were performed. For assisting the assignment of the experimental picks, the two IR spectra of the most and least stable representatives of a set of 56 conformers are calculated and studied. DSC thermograms data, are also reported. The surface enhanced Raman scattering (SERS) spectrum was also recorded in a silver colloid; it could be inferred that propantheline bromide is adsorbed on silver colloid through the oxygen atom with the molecular plane perpendicular to the metal surface.
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Affiliation(s)
- C Baraldi
- Department of Pharmaceutical Sciences, Institute of Pharmacy, University of Modena and Reggio Emilia, via Campi n. 183, 41100 Modena, Italy
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20
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Chaturvedi D, Gupta V, Tandon P, Sharma A, Baraldi C, Gamberini MC. Intermolecular charge transfer and vibrational analysis of hydrogen bonding in acetazolamide. Spectrochim Acta A Mol Biomol Spectrosc 2012; 99:150-159. [PMID: 23063858 DOI: 10.1016/j.saa.2012.08.063] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2012] [Revised: 08/06/2012] [Accepted: 08/21/2012] [Indexed: 06/01/2023]
Abstract
In the present work the structural and spectral characteristics of acetazolamide have been studied by methods of infrared, Raman spectroscopy and quantum chemistry. Electrostatic potential surface, optimized geometry, harmonic vibrational frequencies, infrared intensities and activities of Raman scattering were calculated by density functional theory (DFT) employing B3LYP with complete relaxation in the potential energy surface using 6-311++G(d,p) basis set. Based on these results, we have discussed the correlation between the vibrational modes and the structure of the dimers of acetazolamide. The calculated vibrational spectra of three dimers of acetazolamide have been compared with observed spectra, and the assignment of observed bands was carried out using potential energy distribution. The observed spectra agree well with the values computed from the DFT. A comparison of observed and calculated vibrational spectra clearly shows the effect of hydrogen bonding. The frequency shifts observed for the different dimers are in accord with the hydrogen bonding in acetazolamide. Natural bond orbital (NBO) analyses reflect the charge transfer interaction in the individual hydrogen bond units and the stability of different dimers of acetazolamide.
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Affiliation(s)
- Deepika Chaturvedi
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, India
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21
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Tarchini R, Botti P, Bottini E, Baraldi C, Baruffaldi M, Brescia P, Ferrari G, Lambertini D, Marseglia CD, Mazzola G, Serra A, Talassi E, Guarda L, Ricci P, Galavotti M. [Chronic kidney disease in the province of Mantua and its developments over the last 40 years]. G Ital Nefrol 2012; 29 Suppl 58:S16-S20. [PMID: 23229598] [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: 06/01/2023]
Abstract
The incidence and prevalence of end-stage renal disease increased steadily for 35 years in the population of Italy's Mantua province until the end of 2007, when they started to decrease. We describe the results of providing information and raising awareness among residents of the province's capital, Mantua, and of direct teaching and short training courses in hospital wards for general practitioners over a period of 3 years. During this period there was also more consultation activity for all kidney outpatients, from the first to the last stages of chronic kidney disease. Clinical data collected by the local NHS section (ASL) showed an increase in age and comorbidities (mainly type 2 diabetes) in kidney patients. As a result of the preventive measures, there has been an effective reduction of the yearly incidence and prevalence for all kinds of treatment, with the exception of kidney transplants, which have increased progressively during the last years.
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Affiliation(s)
- Renzo Tarchini
- Struttura Complessa di Nefrologia e Dialisi, Dipartimento Specialita' Mediche, Azienda Ospedaliera Carlo Poma, Mantova - Italy
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22
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Fanti PA, Dika E, Piraccini BM, Infusino SD, Baraldi C, Misciali C. Superficial acral fibromyxoma: a clinicopathological and immunohistochemical analysis of 12 cases of a distinctive soft tissue tumor with a predilection for the fingers and toes. GIORN ITAL DERMAT V 2011; 146:283-287. [PMID: 21785394] [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: 05/31/2023]
Abstract
AIM Superficial acral fibromyxoma (SAFM) is a rare soft tissue tumor, recently delineated and documentated as a separate entity. We report 12 cases of SAFM observed in our department from June 2004 to June 2010 and highlight pathological features and differential diagnosis. METHODS Radiographic examination of the affected digit was performed in all patients. All the tumors were surgically excised under local anesthesia. Follow-up was made every 6-8 months for a maximum period of five years. RESULTS The patients consisted of 8 men and 4 women, age range 28-76 years (mean 51), presenting with a solitary mass or nodule located in the toes and fingers. Histologically the lesions were well circumscribed dermal nodules composed of stellate and spindle cells, arranged in a myxoid matrix. Very low grade atypia and a few mitotic figures were found in only one case. Neoplastic cells showed immunoreactivity for CD34 (12 patients). In contrast focally positive or negative staining was shown for the epithelial membrane antigen (EMA) and CD 99. Actin, S100 protein, HMB45 and cytokeratin were negative. In three cases marked hyperkeratosis and acanthosis of the epidermis was present. Pathological analysis confirmed the diagnosis of superficial acral fibromyxoma. No recurrences were observed even in a long term, 2-5 year follow-up. CONCLUSION Complete surgical excision of the tumors and a careful follow-up is suggested, despite the benign course previously reported.
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Affiliation(s)
- P A Fanti
- Division of Dermatology, Department of Internal Medicine, Geriatric Diseases and Nephrology, University of Bologna, Bologna, Italy
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Gamberini MC, Baraldi C, Freguglia G, Baraldi P. Spectral analysis of pharmaceutical formulations prepared according to ancient recipes in comparison with old museum remains. Anal Bioanal Chem 2011; 401:1839-46. [DOI: 10.1007/s00216-011-5190-1] [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] [Received: 03/30/2011] [Revised: 06/13/2011] [Accepted: 06/15/2011] [Indexed: 10/18/2022]
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Brambilla L, Riedo C, Baraldi C, Nevin A, Gamberini MC, D'Andrea C, Chiantore O, Goidanich S, Toniolo L. Characterization of fresh and aged natural ingredients used in historical ointments by molecular spectroscopic techniques: IR, Raman and fluorescence. Anal Bioanal Chem 2011; 401:1827-37. [PMID: 21725834 DOI: 10.1007/s00216-011-5168-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [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: 03/31/2011] [Revised: 05/31/2011] [Accepted: 06/05/2011] [Indexed: 11/26/2022]
Abstract
Natural organic materials used to prepare pharmaceutical mixtures including ointments and balsams have been characterized by a combined non-destructive spectroscopic analytical approach. Three classes of materials which include vegetable oils (olive, almond and palm tree), gums (Arabic and Tragacanth) and beeswax are considered in this study according to their widespread use reported in ancient recipes. Micro-FTIR, micro-Raman and fluorescence spectroscopies have been applied to fresh and mildly thermally aged samples. Vibrational characterization of these organic compounds is reported together with tabulated frequencies, highlighting all spectral features and changes in spectra which occur following artificial aging. Synchronous fluorescence spectroscopy has been shown to be particularly useful for the assessment of changes in oils after aging; spectral difference between Tragacanth and Arabic gum could be due to variations in origin and processing of raw materials. Analysis of these materials using non-destructive spectroscopic techniques provided important analytical information which could be used to guide further study.
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Affiliation(s)
- L Brambilla
- Department CMIC, Politecnico di Milano, Milano, Italy.
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25
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Bertolini F, Baraldi C, Zunarelli E, Valentini A, Depenni R, Falasca A, Bertoni F, Cavalleri F, Chiari A, Fontana A, Conte PF, Pinna G. O(6)-methylguanine DNA-methyltransferase (MGMT) in glioblastoma: Analysis on first and following surgeries. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.2097] [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: 11/20/2022] Open
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26
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Baraldi C, Bertolini F, Zunarelli E, Valentini A, Depenni R, Falasca A, Giacobazzi P, Malagoli M, Meletti S, Fontana A, Conte PF, Pinna G. Validation of a modified prognostic score including MGTM promoter methylation in primary glioblastoma. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e12510] [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: 11/20/2022] Open
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27
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Baraldi C, Carelli M. OP-061: MODIFIED ENDOVENOUS LASER TREATMENT (ELT) OF LOWER LIMBS' VARICOSE VEINS: OUR EXPERIENCES. Int J Cardiol 2011. [DOI: 10.1016/s0167-5273(11)70164-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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28
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Zavatti M, Zanoli P, Benelli A, Rivasi M, Baraldi C, Baraldi M. Experimental study on Satureja montana as a treatment for premature ejaculation. J Ethnopharmacol 2011; 133:629-633. [PMID: 21040774 DOI: 10.1016/j.jep.2010.10.058] [Citation(s) in RCA: 15] [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] [Subscribe] [Scholar Register] [Received: 07/15/2010] [Revised: 10/15/2010] [Accepted: 10/23/2010] [Indexed: 05/30/2023]
Abstract
AIM OF THE STUDY Satureja montana (winter savory) is a medicinal plant traditionally used to treat different disorders including male sexual dysfunction. In this study we evaluated the effect of Satureja montana hydroalcoholic extract on copulatory behavior of sexually potent male rats. MATERIALS AND METHODS The extract was orally administered acutely or repetitively for 8 consecutive days at the doses of 25 and 50 mg/kg. The main parameters of sexual behavior, mount (ML), intromission (IL), ejaculation (EL) latencies and post-ejaculatory interval (PEI), were evaluated in animals submitted to mating test and multiple ejaculations test. Testosterone serum levels were measured in rats acutely treated with Satureja montana extract dosed at 50 mg/kg. In addition the open field test was conducted to evaluate the locomotor behavior. RESULTS When acutely administered at both dosages, the extract was able to significantly increase EL and decrease intromission frequency (IF) in comparison with controls. The significant increase in EL was found also when the extract was subacutely administered, daily for 8 consecutive days, at the dose of 25 mg/kg. In the multiple ejaculations test, EL values of treated rats were significantly increased during the 1st and 2nd sequence in comparison with controls; in addition only rats treated with the extract were able to reach the 4th ejaculation within 30 min. Testosterone serum level measured in rats acutely treated with Satureja montana at the dose of 50 mg/kg was significantly increased in rats in comparison with controls. Finally, the locomotor activity recorded in the open field test was not affected by the acute administration of the plant extract. CONCLUSIONS These data suggest that Satureja montana could be considered as a natural remedy for the treatment of premature ejaculation delaying ejaculation latency without exerting any negative effect on the other parameters of sexual behavior and without exerting a sedative effect. In addition the increased serum level of testosterone confirms the positive influence of Satureja montana on male sexual function.
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Affiliation(s)
- M Zavatti
- Department of Anatomy and Histology, University of Modena and Reggio Emilia, Via del Pozzo 71, 41100 Modena, Italy.
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Lambertini D, Brescia P, Serra A, Botti P, Ferrari G, Baraldi C, Marseglia CD, Gaetti L, Tarchini R. [Kidney biopsy in Mantua: 2000-2009 report]. G Ital Nefrol 2010; 27 Suppl 52:S23-S26. [PMID: 21132658] [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: 05/30/2023]
Abstract
The aim of this study was to report the frequency of kidney diseases related to gender, age, clinical presentation and renal function at the time of kidney biopsy in the population of Mantua province (400,000 residents). We collected the results of 132 real-time ultrasound-guided fine-needle (18 G) kidney biopsies by optical and immunofluorescence microscopy. The clinical presentation at the time of biopsy was nephrotic syndrome in 57%, nephritic syndrome in 22%, and urinary abnormalities in 21% of cases. Serum creatinine was >-1.5 mg/dL in 48% of patients. Membranous nephropathy was the most frequent histological finding (21.4%), followed by IgA nephropathy (14.5%), focal glomerulosclerosis (11.5%), diabetic nephropathy (8.4%), and chronic interstitial nephritis (6.9%). Primary glomerulonephritis including membranous glomerulonephritis and IgA nephropathy showed a male predominance. The pathological correlations in native biopsy-proven renal disease provided useful information for clinical practice. The histological findings in our patient series are similar to those recorded in Italian and European registries. A less invasive policy in the case of isolated urinary abnormalities and a normal eGFR resulted in a lower incidence of IgA nephropathy in our series than was recorded in the national Italian registry.
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Affiliation(s)
- Domenica Lambertini
- Dipartimento Specialita' Mediche, Struttura Complessa di Nefrologia e Dialisi, A.O. C. Poma, Mantova, Italy.
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Baraldi M, Avallone R, Corsi L, Venturini I, Baraldi C, Zeneroli ML. Natural endogenous ligands for benzodiazepine receptors in hepatic encephalopathy. Metab Brain Dis 2009; 24:81-93. [PMID: 19082698 DOI: 10.1007/s11011-008-9111-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2008] [Accepted: 10/28/2008] [Indexed: 12/15/2022]
Abstract
Benzodiazepines of natural origin (NBZDs) have been found in human blood and brains as well as in medicinal plants and foods. In plasma and brain tissue there are i.e. diazepam and nordiazepam equal to commercial drugs but there are also other benzodiazepine-like compounds termed "endozepines", which act as agonists at the benzodiazepine receptors of central type (CBR). A synthetic pathway for the production of NBZDs has not yet been found, but it has been suggested that micro-organisms may synthesize molecules with benzodiazepine-like structures. Hence NBZDs could be of both endogenous and exogenous source and be considered as natural anxyolitic and sedative. Interestingly there are also natural compounds, such as the polypeptide Diazepam Binding Inhibitor (DBI) acting as an "inversive agonist" implicated in fair and panic disorders. It has been suggested that NBZDs may play a role in the pathogenesis of hepatic encephalopathy (HE). Multidirectional studies evaluated NBZDs levels (1) in the blood of normal subjects, of cirrhotic with or without HE and in commercial benzodiazepine consumers; (2) in the blood of cirrhotic treated or not with a non-absorbable antibiotic; (3) in several constituents of our diet. In conclusion, NBZDs increase sometime in cirrhotics with or without HE but they reach concentrations not higher than those found in commercial benzodiazepines consumers. Hence NBZDs must be considered as occasional precipitating factor of HE and benzodiazepine antagonists only symptomatic drugs. The finding that NBZDs may be in part synthesized by intestinal bacterial flora and in part constituent of our diet underlines the importance to feed cirrhotic patients with selected food.
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Affiliation(s)
- M Baraldi
- Department of Biomedical Sciences (Section of Pharmacology), University of Modena and Reggio Emilia, Via Campi 287, 41100 Modena, Italy.
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Gamberini M, Baraldi C, Tinti A, Rustichelli C, Ferioli V, Gamberini G. Solid state characterization of chloramphenicol palmitate. Raman spectroscopy applied to pharmaceutical polymorphs. J Mol Struct 2006. [DOI: 10.1016/j.molstruc.2005.10.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Ferrari G, Talassi E, Baraldi C, Baruffaldi M, Tarchini R, Galli F, Arienzo A, Pacchioni R. [A good vascular access allows an effective treatment]. G Ital Nefrol 2005; 22 Suppl 31:S60-9. [PMID: 15786405] [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: 05/02/2023]
Abstract
Vascular access (VA) for dialysis is defined as the 'Achilles heel', but also the 'Cinderella' of dialysis, indicating the poor consideration of the problem whether in the surgical environment, or in incomprehensible way in that nephrologic. It can only aspire to the definition 'Fundamental detail'. However, presupposed effective dialysis is a blood flow rate of 300-350 mL/min. Good VA must be easy to prepare, long lasting, free from complications, and aesthetically acceptable and economical. The arteriovenous fistula (AVF) of Cimino and Brescia, from 1966, represents the gold standard and the model of comparison for other systems, more technologically advanced. It must be programmed with an adapted margin (1-2 months) to allow maturation and access certainty for the first puncture, and never carried out sooner than 14 days from the operation. It is known from hemodynamic studies that the good functional flow of the new fistula can already regain 400-500 ml/min in the first week, with cardiological implications like the increase in cardiac throw, in ejection fraction and in the cardiac index. Health workers, patients and dialysis staff must follow a continuous educational program to protect the VA and avoid 'routine and absent-minded management', a basis for its premature failure. The nephrologist must take the responsibility upon himself not to carry out 'medical malpractice'. In the Dialysis Center of Mantova, the VA 'road map' previews all patients (young and old, affections from mono or pluropathology), first the fistula to the wrist, then the cephalic proximal. It follows the basilic vein transposition, the vascular graft to the arm or to the groin, as an alternative to peritoneal dialysis. The permanent central venous catheter (CVCp) is the last choice in patients with reduced life expectancy, heart failure, neoplastic patients with vascular patrimony destroyed by chemotherapy and ischemic lesions produced by the fistula. There were 180 afferent prevailing patients at the Mantova Dialysis Center . The natural fistula rate was 91%, grafts 7% and CVCps 2%. Between 2000 and 31 March 2004 we prepared 367 VAs. Average patient age was 65 yrs, range 20-90 yrs; 59% male and 41% female. Eighty-eight percent of operations were performed by the nephrologist (distal fistula, rescue and cephalic proximal) and 12% by the vascular surgeon (basilic vein transposition, graft in PTFE stretch to the arm and to the groin and permanent catheter in the jugular vein). The fistula with native veins was the better solution, the graft must be prepared after the exhaustion of natural possibilities, and the CVCp, for serious complications (inadequate flow and infections), must be the last alternative.
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Affiliation(s)
- G Ferrari
- Struttura Complessa di Nefrologia e Dialisi, Azienda Ospedaliera 'Carlo Poma', Mantova - Italy.
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Zanoli P, Benelli A, Rivasi M, Baraldi C, Vezzalini F, Baraldi M. Opposite effect of acute and subchronic treatments with Ferula hermonis on copulatory behavior of male rats. Int J Impot Res 2003; 15:450-5. [PMID: 14671666 DOI: 10.1038/sj.ijir.3901051] [Citation(s) in RCA: 25] [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: 11/08/2022]
Abstract
Sexually potent and sluggish/impotent male rats were orally treated with an extract of Ferula hermonis (30 and 60 mg/kg). The acute administration stimulated sexual motivation in potent rats and improved copulatory performance in sluggish/impotent rats. This last effect was elicited only by the higher dose, which, in parallel, increased serum testosterone levels in rats. On the contrary, when the extract was subchronically administered (10 days) a marked reduction in the percentage of rats achieving ejaculation was detected, together with a general impairment of the copulatory pattern. Furthermore, the repeated administration of the extract (6 mg/kg/day for 10 days) resulted in a significant reduction of testosterone levels in comparison with controls. The present results discourage a repeated assumption of F. hermonis, while suggesting its acute administration to improve the performance in sexual dysfunctions.
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Affiliation(s)
- P Zanoli
- Department of Pharmaceutical Sciences, Section of Pharmacology, University of Modena and Reggio Emilia, Modena, Italy.
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35
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Ferrari G, Talassi E, Baraldi C, Lambertini D, Tarchini R. [Vascular access validity and treatment efficiency in hemodialysis]. G Ital Nefrol 2003; 20 Suppl 22:S22-9. [PMID: 12851917] [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: 03/03/2023]
Abstract
The vascular access is the "Achille's heel" of the modern hemodialysis. In order to obtain a good depuration, the blood flow in dialysis must be of 250-300 mL/min, at least. The procedures for the preparation and their complications are cause of the 25% of the hospital admissions in patients with chronic uremia in substitutive therapy. Gold standard is still represented from the distal arteriovenous fistulas of Cimino and Brescia. The alternatives to the native veins as the syntetic graft and the tunneled central venous catheteters or the Dialock system, revealed useful in the patients that have exausted the superficial veins, but are of second choice. The native fistula has an advanced validity, demonstrated from lower risk of mortality in the patients who use it, diabetic or not. These affirmations come just from USA, where the arteriovenous grafts prevail and the percentage of central venous catheters is elevated. Thrombosis, infections and reduced depurative efficiency are the main causes. In the Dialysis Unit of Mantova we adopted an aggressive approach to the construction of distal fistula. Out of 172 patients in chronic hemodialysis, 165 use an arterovenous fistula, 4 an arterovenous grafts (PTFE) and 3 a tunnelled central venous catheters (2 Permcath and 1 Tesio). The surgical activity between 1987 and 2001 included 858 procedures on 516 patients (medium ages 59.1 years): Among these, 815 are created from native veins, 28 by arterovenous graft fistulas and 15 with tunnelled hemodialysis catheters. Our current strategy recommended to candidate to permanent venous catheter only patients on chronic hemodialysis with exhausted periferal vascular bed and only when peritoneal dialisys is'nt possible. Generally, the management of the vascular access must preview one tight collaboration between nephrologists, nurses, patient, vascular surgeons and radiologists.
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Affiliation(s)
- G Ferrari
- Struttura Complessa di Nefrologia e Dialisi, Azienda Ospedaliera "Carlo Poma", Mantova, Italy
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Corsi L, Avallone R, Cosenza F, Farina F, Baraldi C, Baraldi M. Antiproliferative effects of Ceratonia siliqua L. on mouse hepatocellular carcinoma cell line. Fitoterapia 2002; 73:674-84. [PMID: 12490228 DOI: 10.1016/s0367-326x(02)00227-7] [Citation(s) in RCA: 82] [Impact Index Per Article: 3.7] [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: 11/16/2022]
Abstract
Extracts from pods and leaves of carob (Ceratonia siliqua L.) were tested for their ability to inhibit cell proliferation of mouse hepatocellular carcinoma cell line (T1). The two extracts showed a marked alteration of T1 cell proliferation in a dose-related fashion reaching the maximal effect at 1 mg/ml. Moreover, we demonstrated that leaf and pod extracts were able to induce apoptosis in T1 cell lines after 24-h treatment mediating a direct activation of the caspase 3 pathway. HPLC analysis revealed the presence of gallic acid, (-) epigallocatechin-3-gallate and (-) epicatechin-3-gallate in pod and leaf extracts, compounds well known to exert antiproliferative effects. Their concentration reached 6.28 mg/g in carob leaves and 1.36 mg/g in carob pods extract. The discovery that carob pod and leaf extracts contained antiproliferative agents could be of practical importance in the development of functional foods and/or chemopreventive drugs.
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Affiliation(s)
- L Corsi
- Department of Pharmaceutical Sciences, Via Campi, 183, Modena and Reggio Emilia University, 41100 Modena, Italy.
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Abstract
Hyperforin, the main antidepressant component of Hypericum extract, is not stable with regard to heat and light. Therefore, we investigated a newly synthetized derivative, hyperforin acetate. Herein we demonstrate its efficacy in animal models sensitive to antidepressant and anxiolytic drugs. In the forced swimming test, triple administration of hyperforin (5-20 mg/kg) significantly reduced the immobility time of rats, while in the learned helplessness test a daily treatment of 10 mg/kg for seven consecutive days was necessary to elicit an antidepressant effect. In the elevated plus-maze and in the light-dark test, the acute administration of hyperforin acetate (3-5 mg/kg) exerted an anxiolytic activity, which, however, was smaller than that of diazepam. The effect was inhibited by the pretreatment of rats with metergoline, a serotoninergic antagonist, but not with CGS-8216, a benzodiazepine receptor antagonist. Hyperforin acetate (3-10 mg/kg) was also able to reduce locomotion in rats without eliciting myorelaxant activity. As Hypericum extract was claimed to exert a potential influence on the liver drug metabolizing system, we showed that neither acute nor repeated oral doses of hyperforin acetate altered pentobarbital sleeping time in rats. Taken together, the present results show that hyperforin acetate is a pharmacologically active derivative of hyperforin and may be a starting point from which to develop new compounds for therapeutic purposes.
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Affiliation(s)
- P Zanoli
- Dipartimento di Scienze Farmaceutiche, Via Campi 183, I-41100 Modena, Italy.
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Avallone R, Cosenza F, Farina F, Baraldi C, Baraldi M. Extraction and purification from Ceratonia siliqua of compounds acting on central and peripheral benzodiazepine receptors. Fitoterapia 2002; 73:390-6. [PMID: 12165334 DOI: 10.1016/s0367-326x(02)00115-6] [Citation(s) in RCA: 17] [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] [Indexed: 10/27/2022]
Abstract
The presence of molecules with high affinity for central and peripheral benzodiazepine receptors was determined in the pod and leaves of Ceratonia siliqua (carob). The amount of the substances able to selectively bind the central benzodiazepine receptor recovered from carob pods and leaves was respectively 12.17 and 18.7 ng diazepam equivalent/g. The amount of compounds active on peripheral benzodiazepine receptor in both pods and leaves was higher in comparison with the central one, being 49.83 and 40.00 PK 11195 equivalent/g, respectively. In particular the compounds acting on peripheral benzodiazepine receptors were found to be extremely concentrated in the young leaves (2572.57 ng PK 11195 equivalent/g). The presence of substances with central benzodiazepine activity in carob extracts seems of great importance in view of the possibility to use carob extract as potential natural products with anxiolytic-sedative effects. Moreover, the prevalence in leaves of substances acting on peripheral benzodiazepine receptor suggests the possible utilisation of leave extracts as chemopreventive agents.
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Affiliation(s)
- R Avallone
- Department of Pharmaceutical Sciences, Via Campi 183, Modena and Reggio Emilia University, 41100, Modena, Italy.
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Abstract
An updating of photon transport modelling in tissues is carried out by including the effect of molecular interference in the coherent (Rayleigh) scattering. To this end, the present tabulations--which permit us to obtain the linear differential scattering coefficient of compounds from a simple weighted sum of the elemental components--are integrated by adding files for a limited set of molecular interference functions. This set originates from a four-component model which is found to be capable of reproducing human tissues in situations involving bony and soft tissues. The proposed procedure overcomes, in the computation, the hindrance that the dependence on molecular interference effects leads every tissue to have its own diffraction pattern, which is not easily obtained by means of measurements or calculations.
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Affiliation(s)
- A Tartari
- Department of Physics. University of Ferrara, Italy.
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Tartari A, Baraldi C, Bonifazzi C. A model for Monte Carlo simulation of low angle photon scattering in biological tissues. Radiat Phys Chem Oxf Engl 1993 2001. [DOI: 10.1016/s0969-806x(01)00353-x] [Citation(s) in RCA: 5] [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: 10/27/2022]
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Venturini I, Corsi L, Avallone R, Farina F, Bedogni G, Baraldi C, Baraldi M, Zeneroli ML. Ammonia and endogenous benzodiazepine-like compounds in the pathogenesis of hepatic encephalopathy. Scand J Gastroenterol 2001; 36:423-5. [PMID: 11336169 DOI: 10.1080/003655201300051315] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Ammonia and endogenous benzodiazepines (BDZs) are two of the most important agents among those taken into consideration in the pathogenesis of hepatic encephalopathy (HE). METHODS Venous ammonia and endogenous BDZs sera levels were assayed in 58 liver cirrhosis patients (34 male, 24 female) free of commercial BDZs. Endogenous BDZs were measured by binding assay after high-performance liquid chromatography purification. Ammonia was assessed by colorimetric test. RESULTS Endogenous BDZs and ammonia were significantly higher in Child-Pugh class C than in class B and class A (P < 0.05), correlating to the severity of the liver dysfunction but not with the degree of HE. A significant difference, in fact, was noted between degree 0 (no HE) versus III-IV of HE (P < 0.05), but not between degrees I-II versus III-IV. Regression analysis performed to find a correlation between the ammonia and BDZ levels in HE resulted negative. CONCLUSION Clinical evidence is provided in cirrhotic patients that ammonia and endogenous BDZ levels do not correlate with each other in the outcome of HE.
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Affiliation(s)
- I Venturini
- Dipartimento di Medicina Interna, Ospedale di Susa, Torino, Italy
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Maccherini M, Diciolla F, Laghi Pasini F, Lisi G, Tanganelli P, D'Ascenzo G, Mondillo S, Carone E, Oricchio L, Baraldi C, Capecchi PL, Lazzerini PE, Toscano T, Barretta A, Giunti G, Schuerfeld K, Fimiani M, Papalia U. Photopheresis immunomodulation after heart transplantation. Transplant Proc 2001; 33:1591-4. [PMID: 11267432 DOI: 10.1016/s0041-1345(00)02605-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M Maccherini
- Institute of Thoracic and Cardiovascular Surgery, University of Siena, Siena, Italy
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Tartari A, Bonifazzi C, Fernandez JE, Bastiano M, Casnati E, Baraldi C, Di Domenico G. Molecular coherent scattering data for tissue in photon transport Monte Carlo codes. Appl Radiat Isot 2000; 53:901-6. [PMID: 11003539 DOI: 10.1016/s0969-8043(00)00249-9] [Citation(s) in RCA: 7] [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] [Indexed: 10/18/2022]
Abstract
The suitability of introducing molecular interference effects into coherent scattering phenomenology is considered here in the case of X and gamma photon transport in biological tissues. In order to make its implementation practicable in most of the existing open user Monte Carlo codes, a self-consistent basic set of tabulations for the linear differential scattering coefficient was proposed. The tabulations were critically reviewed by testing their validity over the entire range of the momentum transfer variable from 0 to 10(10) nm(-1). Implementation in three different Monte Carlo codes was performed, and they proved to be reliable.
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Affiliation(s)
- A Tartari
- Department of Physics, University of Ferrara, Italy.
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Baraldi M, Avallone R, Corsi L, Venturini I, Baraldi C, Zeneroli ML. Endogenous benzodiazepines. Therapie 2000; 55:143-6. [PMID: 10860017] [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: 02/16/2023]
Abstract
The existence of endogenous benzodiazepines such as diazepam and nordiazepam has been provided in human blood and brains as well as in medicinal plants and foods. It must be stressed, however, that in plasma and brain tissue there are also other benzodiazepine-like compounds termed 'endozepines' which are not halogenated. A synthetic pathway for the production of benzodiazepine-like compounds and endozepines has not yet been found, hence it may be surmised that these compounds could be of exogenous source. Changes in the level of endogenous circulating benzodiazepines due to food or drug ingestion could be responsible for pathological conditions. Clinical experiments were designed in order to study the levels of the endogenous benzodiazepines in vegetables and in the blood of control subjects and of cirrhotic patients. These patients accumulate benzodiazepines because of decreased liver metabolization capacity and impaired renal secretion, reaching plasma concentrations similar to those recorded in commercial benzodiazepine consumers.
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Affiliation(s)
- M Baraldi
- Department of Pharmaceutical Sciences, University of Modena, Italy
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Tartari A, Casnati E, Baraldi C, Fernandez JE, Felsteiner J. Comments on the paper 'Monte Carlo simulation of source-excited in vivo x-ray fluorescence measurements of heavy metals'. Phys Med Biol 1999; 44:L3-6. [PMID: 10211815 DOI: 10.1088/0031-9155/44/3/008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Tartari A, Casnati E, Fernandez JE, Felsteiner J, Baraldi C. Photon backscattering tissue characterization by energy dispersive spectroscopy evaluations. Phys Med Biol 1999; 39:219-30. [PMID: 15552121 DOI: 10.1088/0031-9155/39/2/001] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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: 11/11/2022]
Abstract
Techniques for in vivo tissue characterization based on scattered photons have usually been confined to evaluating coherent and Compton peaks. However, information can also be obtained from the energy analysis of the Compton scattered distribution. This paper looks at the extension of a technique validated by the authors for characterizing tissues composed of low-atomic-number elements. To this end, an EDXRS (energy dispersive x-ray spectrometry) computer simulation procedure was performed and applied to test the validity of a figure of merit able to characterize binary compounds. This figure of merit is based on the photon fluence values in a restricted energy interval of the measured distribution of incoherently scattered photons. After careful experimental tests with 59.54 keV incident photons at scattering angles down to 60degrees, the simulation procedure was applied to quasi-monochromatic and polychromatic high-radiance sources. The results show that the characterization by the figure of merit, which operates satisfactorily with monochromatic sources, is unsatisfactory in the latter cases, which seem to favour a different parameter for compound characterization.
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Affiliation(s)
- A Tartari
- Dipartimento di Fisica, Università di Ferrara, Italy
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Venturini I, Zeneroli ML, Corsi L, Avallone R, Farina F, Alho H, Baraldi C, Ferrarese C, Pecora N, Frigo M, Ardizzone G, Arrigo A, Pellicci R, Baraldi M. Up-regulation of peripheral benzodiazepine receptor system in hepatocellular carcinoma. Life Sci 1998; 63:1269-80. [PMID: 9771915 DOI: 10.1016/s0024-3205(98)00388-9] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.2] [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: 11/22/2022]
Abstract
Increased number of peripheral benzodiazepine receptors (PBRs) have been found in some tumors outside the liver. The present study was to verify whether the PBR system is altered in hepatocellular carcinoma (HCC). The levels of endogenous benzodiazepine-like compounds (BZDs), measured by radioreceptor binding technique after HPLC purification and the endogenous ligand for PBRs, termed diazepam binding inhibitor (DBI), measured by radioimmunoassay utilizing a specific antibody for human DBI, were studied in the blood of 15 normal subjects, 12 liver cirrhosis and 10 patients with HCC. The levels of BZDs in serum were increased hundred fold in liver cirrhosis patients and slightly elevated in HCC patients. DBI was found to be increased in HCC patients. The binding recognition sites for PBRs (Bmax) were increased 4 to 7 fold in HCC tissue in comparison with that found in non-tumoral liver tissue (NTLT). On the contrary the concentrations of DBI were found to be significantly decreased in HCC tissue in comparison with the respective NTLT. These results seem to suggest an implication of PBRs and of their putative endogenous ligands in the metabolism of these neoplastic cells and possibly in their proliferation. The up-regulation of PBRs found in HCC tissue seems to indicate an increased functional activity of these receptors and opens up the possibility of new pharmacological and diagnostic approaches while the changes in the circulating endogenous ligands for the above receptors might be envisaged as early markers of tumorigenesis in liver cirrhosis.
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Affiliation(s)
- I Venturini
- Cattedra di Semeiotica e Metodologia Medica, Università di Modena, Italy
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