1
|
Di Vito A, Chiarella E, Baudi F, Scardamaglia P, Antonelli A, Giudice D, Barni T, Fortunato L, Giudice A. Dose-Dependent Effects of Zoledronic Acid on Human Periodontal Ligament Stem Cells: An In Vitro Pilot Study. Cell Transplant 2021; 29:963689720948497. [PMID: 33086890 PMCID: PMC7784504 DOI: 10.1177/0963689720948497] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [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] [Indexed: 12/19/2022] Open
Abstract
Bisphosphonates (BPs) are widely used to treat several metabolic and oncological diseases affecting the skeletal system. Despite BPs’ well-known therapeutic potential, they also displayed important side effects, among which is BPs-related osteonecrosis of the jaw, by targeting osteoclast activities, osteoblast, and osteocyte behavior. The aim of this study is to evaluate the biological effects of zoledronic acid (ZOL) in an in vitro model of periodontal ligament stem cells (PDLSCs) by using an experimental setting that resembles the in vivo conditions. PDLSCs were treated with different concentrations of ZOL ranging from 0.1 to 5 μM. The effects of ZOL exposure were evaluated on cell viability via 3-[4,5-Dimethylthiaoly]-2,5-diphenyltetrazolium bromide (MTT), cell cycle analysis, apoptosis detection, and immunofluorescence. Quantitative real-time polymerase chain reaction (PCR), colorimetric detection of alkaline phosphatase activity, and Alizarin Red S staining were performed to investigate the osteogenic potential of PDLSCs exposed to ZOL. MTT analysis showed that the viability of PDLSCs exposed to ZOL concentration ≥1.5 μM for 3 and 6 days was significantly lower (P < 0.001) than that of untreated cells. The percentage of apoptotic cells was significantly higher in PDLSCs exposed for 4 days to ZOL at 2 μM (P < 0.01) and 5 μM (P < 0.001) when compared to the control. Moreover, ZOL treatment (3 days) accounted for alterations in cell cycle distribution, with an increase in the proportion of cells in G0/G1 phase and a reduction in the proportion of cells in S phase. Chronic exposure (longer than 7 days) of PDLSCs to ZOL accounted for the downregulation of ALP, RUNX2, and COL1 genes at all tested concentrations, which fit well with the reduced alkaline phosphatase activity reported after 7 and 14 days of treatment. Reduced Col1 deposition in the extracellular matrix was reported after 14 days of treatment. Increased calcium deposits were observed in treated cells when compared to the control cultures. In conclusion, chronic exposure to 1 μM ZOL induced significant reduction of osteogenic differentiation, while ZOL concentrations ≥1.5 μM are required to impair PDLSCs viability and induce apoptosis.
Collapse
Affiliation(s)
- Anna Di Vito
- Department of Clinical and Experimental Medicine, University Magna Graecia of Catanzaro, Italy
| | - E Chiarella
- Department of Clinical and Experimental Medicine, University Magna Graecia of Catanzaro, Italy
| | - F Baudi
- Department of Clinical and Experimental Medicine, University Magna Graecia of Catanzaro, Italy
| | - P Scardamaglia
- Department of Clinical and Experimental Medicine, University Magna Graecia of Catanzaro, Italy
| | - A Antonelli
- Department of Health Science, University Magna Graecia of Catanzaro, Italy
| | - D Giudice
- Department of Clinical and Experimental Medicine, University Magna Graecia of Catanzaro, Italy
| | - T Barni
- Department of Clinical and Experimental Medicine, University Magna Graecia of Catanzaro, Italy
| | - L Fortunato
- Department of Health Science, University Magna Graecia of Catanzaro, Italy
| | - A Giudice
- Department of Health Science, University Magna Graecia of Catanzaro, Italy
| |
Collapse
|
2
|
Lodi G, Sannino M, Cannarozzo G, Giudice A, Del Duca E, Tamburi F, Bennardo L, Nisticò SP. Blue light-emitting diodes in hair regrowth: the first prospective study. Lasers Med Sci 2021; 36:1719-1723. [PMID: 34101089 DOI: 10.1007/s10103-021-03327-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 02/18/2021] [Accepted: 04/20/2021] [Indexed: 11/28/2022]
Abstract
Different studies highlight photo-receptors' presence on the hair follicle that seems to be capable of eliciting hair growth. This study aims to demonstrate blue light's effectiveness on hair growth in patients affected by androgenetic alopecia. Twenty patients enrolled at Magna Graecia University Unit of Dermatology, affected by androgenetic alopecia, were treated with a blue LED light device at 417 ± 10 nm, fluence of 120 J/cm2, and power intensity of 60 mW/cm2 ± 20%. The treatments were performed twice a week for ten consecutive weeks. Patients were evaluated before and 1 month after the end of therapy clinically using standardized global photographs and dermoscopically estimating hair density and hair shaft width. An increase in hair density and hair shaft width was recorded in 90% of patients after 10 weeks. Photographic improvement was noted in 80% of the patients. No serious adverse events have been reported. The only side effect consisted in a darkening of the hair, perhaps due to melanic stimulation due to blue light in 2 patients. Blue light therapy is a promising therapy for patients affected by androgenetic alopecia and other diseases characterized by hair loss. Further studies will be necessary to confirm the findings of this preliminary study.
Collapse
Affiliation(s)
- G Lodi
- Laser Unit, University of Rome Tor Vergata, Rome, Italy
| | - M Sannino
- Laser Unit, University of Rome Tor Vergata, Rome, Italy
| | - G Cannarozzo
- Laser Unit, University of Rome Tor Vergata, Rome, Italy
| | - A Giudice
- Department of Health Sciences, University of Magna Graecia, Catanzaro, Italy
| | - E Del Duca
- Department of Health Sciences, University of Magna Graecia, Catanzaro, Italy
| | - F Tamburi
- Department of Health Sciences, University of Magna Graecia, Catanzaro, Italy
| | - Luigi Bennardo
- Department of Health Sciences, University of Magna Graecia, Catanzaro, Italy.
| | - S P Nisticò
- Department of Health Sciences, University of Magna Graecia, Catanzaro, Italy
| |
Collapse
|
3
|
Morice A, Cornette R, Giudice A, Collet C, Paternoster G, Arnaud É, Galliani E, Picard A, Legeai-Mallet L, Khonsari RH. Early mandibular morphological differences in patients with FGFR2 and FGFR3-related syndromic craniosynostoses: A 3D comparative study. Bone 2020; 141:115600. [PMID: 32822871 DOI: 10.1016/j.bone.2020.115600] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/10/2020] [Accepted: 08/14/2020] [Indexed: 01/04/2023]
Abstract
Syndromic craniosynostoses are defined by the premature fusion of one or more cranial and facial sutures, leading to skull vault deformation, and midfacial retrusion. More recently, mandibular shape modifications have been described in FGFR-related craniosynostoses, which represent almost 75% of the syndromic craniosynostoses. Here, further characterisation of the mandibular phenotype in FGFR-related craniosynostoses is provided in order to confirm mandibular shape modifications, as this could contribute to a better understanding of the involvement of the FGFR pathway in craniofacial development. The aim of our study was to analyse early mandibular morphology in a cohort of patients with FGFR2- (Crouzon and Apert) and FGFR3- (Muenke and Crouzonodermoskeletal) related syndromic craniosynostoses. We used a comparative geometric morphometric approach based on 3D imaging. Thirty-one anatomical landmarks and eleven curves with sliding semi-landmarks were defined to model the shape of the mandible. In total, 40 patients (12 with Crouzon, 12 with Apert, 12 with Muenke and 4 with Crouzonodermoskeletal syndromes) and 40 age and sex-matched controls were included (mean age: 13.7 months ±11.9). Mandibular shape differed significantly between controls and each patient group based on geometric morphometrics. Mandibular shape in FGFR2-craniosynostoses was characterized by open gonial angle, short ramus height, and high and prominent symphysis. Short ramus height appeared more pronounced in Apert than in Crouzon syndrome. Additionally, narrow inter-condylar and inter-gonial distances were observed in Crouzon syndrome. Mandibular shape in FGFR3-craniosynostoses was characterized by high and prominent symphysis and narrow inter-gonial distance. In addition, narrow condylar processes affected patients with Crouzonodermoskeletal syndrome. Statistical analysis of variance showed significant clustering of Apert and Crouzon, Crouzon and Muenke, and Apert and Muenke patients (p < 0.05). Our results confirm distinct mandibular shapes at early ages in FGFR2- (Crouzon and Apert syndromes) and FGFR3-related syndromic craniosynostoses (Muenke and Crouzonodermoskeletal syndromes) and reinforce the hypothesis of genotype-phenotype correspondence concerning mandibular morphology.
Collapse
Affiliation(s)
- A Morice
- Service de Chirurgie Maxillo-Faciale et Chirurgie Plastique, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Centre de Référence Maladies Rares MAFACE Fentes et Malformations Faciales, Université de Paris, Paris, France; Laboratoire 'Bases Moléculaires et Physiopathologiques des Ostéochondrodysplasies', INSERM UMR 1163, Institut Imagine, Paris, France.
| | - R Cornette
- Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum National d'Histoire Naturelle, Sorbonne Université, Ecole Pratique des Hautes Etudes, Université des Antilles, CNRS, CP 50, 57 rue Cuvier, 75005 Paris, France
| | - A Giudice
- Università Degli Studi di Catanzaro 'Magna Graecia', Catanzaro, Italy
| | - C Collet
- BIOSCAR, INSERM U1132, Université de Paris, Hôpital Lariboisière, 75010 Paris, France; Service de Biochimie et Biologie Moléculaire, CHU-Paris-GH Saint Louis Lariboisière Widal, Paris, France
| | - G Paternoster
- Service de Neurochirurgie, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Centre de Référence Maladies Rares CRANIOST Craniosténoses et Malformations Craniofaciales, Université de Paris, Paris, France
| | - É Arnaud
- Service de Neurochirurgie, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Centre de Référence Maladies Rares CRANIOST Craniosténoses et Malformations Craniofaciales, Université de Paris, Paris, France
| | - E Galliani
- Service de Chirurgie Maxillo-Faciale et Chirurgie Plastique, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Centre de Référence Maladies Rares MAFACE Fentes et Malformations Faciales, Université de Paris, Paris, France
| | - A Picard
- Service de Chirurgie Maxillo-Faciale et Chirurgie Plastique, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Centre de Référence Maladies Rares MAFACE Fentes et Malformations Faciales, Université de Paris, Paris, France
| | - L Legeai-Mallet
- Laboratoire 'Bases Moléculaires et Physiopathologiques des Ostéochondrodysplasies', INSERM UMR 1163, Institut Imagine, Paris, France
| | - R H Khonsari
- Service de Chirurgie Maxillo-Faciale et Chirurgie Plastique, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Centre de Référence Maladies Rares MAFACE Fentes et Malformations Faciales, Université de Paris, Paris, France; Laboratoire 'Bases Moléculaires et Physiopathologiques des Ostéochondrodysplasies', INSERM UMR 1163, Institut Imagine, Paris, France; Service de Neurochirurgie, Hôpital Universitaire Necker - Enfants Malades, Assistance Publique - Hôpitaux de Paris, Centre de Référence Maladies Rares CRANIOST Craniosténoses et Malformations Craniofaciales, Université de Paris, Paris, France
| |
Collapse
|
4
|
Giudice A, Bennardo F, Antonelli A, Barone S, Wagner F, Fortunato L, Traxler H. Influence of clinician's skill on primary implant stability with conventional and piezoelectric preparation techniques: an ex-vivo study. J BIOL REG HOMEOS AG 2020; 34:739-745. [PMID: 32475099 DOI: 10.23812/20-96-l-53] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- A Giudice
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Italy
| | - F Bennardo
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Italy
| | - A Antonelli
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Italy
| | - S Barone
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Italy
| | - F Wagner
- Department of Cranio-Maxillofacial and Oral Surgery, Medical University of Vienna, Austria
| | - L Fortunato
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Italy
| | - H Traxler
- Institute of Anatomy, Center for Anatomy and Cell Biology, Medical University of Vienna, Austria
| |
Collapse
|
5
|
Affiliation(s)
- A Giudice
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - A Antonelli
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - F Bennardo
- School of Dentistry, Department of Health Sciences, Magna Graecia University of Catanzaro, Catanzaro, Italy
| |
Collapse
|
6
|
Giudice A, Belhous K, Barone S, Soupre V, Morice A, Vazquez MP, Boddeart N, Abadie V, Picard A. The use of three-dimensional reconstructions of CT scans to evaluate anomalies of hyoid bone in Pierre Robin sequence: A retrospective study. J Stomatol Oral Maxillofac Surg 2019; 121:357-362. [PMID: 31499229 DOI: 10.1016/j.jormas.2019.08.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 08/30/2019] [Indexed: 10/26/2022]
Abstract
AIM The aim of the study was to investigate hyoid bone anomalies in patients with Pierre Robin sequence (PRS) compared to the control group, using computed tomography (CT) examination and three-dimensional reconstruction of the hyoid bone and mandible. METHODS A retrospective study was performed of patients between birth and 12 months old with isolated PRS (i-PRS) and syndromic PRS (ni-PRS), who had undergone CT examination, and whose results were compared to the control group of the same age. DICOM data was processed to highlight bone tissue. The mandible and hyoid bones were the main targets of the three-dimensional reconstruction. The study outcomes were the analysis of hyoid bone ossification, volume, and position (distance between hyoid and mandibular symphysis). Univariate and multivariate statistical analyses were performed with α=0.05 as level of significance. RESULTS The study sample included 29 i-PRS and 21 ni-PRS patients, while 43 infants in the control group. Hyoid ossification was present in 26/50 (52%) PRS patients (14 i-PRS; 12 ni-PRS) but in 31/43 controls (72%). Statistical analysis showed that absence of hyoid ossification was significantly associated with the diagnosis of PRS (P<0.05). Only ni-PRS patients showed a significant reduction of the distance between hyoid and mandible compared to the control group (P<0.001). Hyoid volume was significantly lower only in the ni-PRS group than in controls (P<0.001). CONCLUSION I-PRS and ni-PRS patients differ both etiologically and clinically. Ni-PRS patients confirmed their worst clinical condition than i-PRS with severe anomalies of hyoid development, helping for their ontogeny classification.
Collapse
Affiliation(s)
- A Giudice
- Department of Oral and Maxillofacial Surgery, Magna Graecia University of Catanzaro, Viale Europa, Catanzaro, 88100, Italy; Department of Maxillofacial and Plastic Surgery, Necker-Enfants Malades Hospital, 75015 Paris, France.
| | - K Belhous
- Department of Pediatric Radiology, Necker-Enfants Malades Hospital, 75015 Paris, France
| | - S Barone
- Department of Dentistry, Magna Graecia University, 88100 Catanzaro, Italy
| | - V Soupre
- Department of Maxillofacial and Plastic Surgery, Necker-Enfants Malades Hospital, 75015 Paris, France
| | - A Morice
- Department of Maxillofacial and Plastic Surgery, Necker-Enfants Malades Hospital, 75015 Paris, France
| | - M-P Vazquez
- Department of Maxillofacial and Plastic Surgery, Necker-Enfants Malades Hospital, 75015 Paris, France
| | - N Boddeart
- Department of Pediatric Radiology, Necker-Enfants Malades Hospital, 75015 Paris, France
| | - V Abadie
- Department of Pediatrics, Necker-Enfants Malades Hospital, 75015 Paris, France
| | - A Picard
- Department of Maxillofacial and Plastic Surgery, Necker-Enfants Malades Hospital, 75015 Paris, France
| |
Collapse
|
7
|
Giudice A, Montella M, Boccellino M, Crispo A, D'Arena G, Bimonte S, Facchini G, Ciliberto G, Botti G, Quagliuolo L, Caraglia M, Capunzo M. Epigenetic Changes Induced by Green Tea Catechins a re Associated with Prostate Cancer. Curr Mol Med 2019; 17:405-420. [PMID: 29256350 DOI: 10.2174/1566524018666171219101937] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 12/06/2017] [Accepted: 12/15/2017] [Indexed: 11/22/2022]
Abstract
Prostate cancer is one of the most difficult cancers to treat especially when it becomes hormone resistant such as castrate resistant prostate cancer (CRPC) and subsequent metastatic CRPC. Apart from the genetic alterations in prostate cancer, epigenetic modifications also play an important role in the development and neoplastic progression of this disease. These include DNA methylation, histone modifications, and non-coding microRNAs. miRNAs are a novel class of small endogenous single-stranded non-coding RNAs of 19-25 nucleotides in length that typically silence gene expression. Considering the reversibility of epigenetic alterations in early carcinogenesis process, reversion (correction) of these modifications by green tea catechins could be a promising strategy for cancer chemoprevention and therapy. Recent evidence suggests that green tea catechins such as epigallocatechin gallate (EGCG) not only act as epigenetic modulators but can also modify miRNA expression and their target mRNAs, consistently contributing to the inhibition of prostate carcinogenesis. Various studies also indicate that several green tea polyphenols (GTPs) exert synergistic effects with other cancer chemotherapeutic agents. Therefore, the use of appropriate combinations of green tea catechins with the existing chemotherapeutics will lead to a reduction in side effects without decreasing the chemotherapeutic effects. This review will summarize the key results from recent studies detailing the effects of green tea catechins such as EGCG on epigenetic alterations and miRNA expression in prostate cancer.
Collapse
Affiliation(s)
- A Giudice
- Epidemiology Unit, National Cancer Institute of Naples "G. Pascale Foundation", IRCCS, 80131 Naples, Italy
| | - M Montella
- Epidemiology Unit, National Cancer Institute of Naples "G. Pascale Foundation", IRCCS, 80131 Naples, Italy
| | - M Boccellino
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Via L. De Crecchio, 7 - 80138 Naples, Italy
| | - A Crispo
- Epidemiology Unit, National Cancer Institute of Naples "G. Pascale Foundation", IRCCS, 80131 Naples, Italy
| | - G D'Arena
- Department of Hematology and Stem Cell Transplantation Unit, IRCCS, Cancer Referral Center of Basilicata, 85028 Rionero in Vulture, Italy
| | - S Bimonte
- Division of Anesthesia and Pain Medicine, National Cancer Institute "G. Pascale Foundation", IRCCS, 80131 Naples, Italy
| | - G Facchini
- Epidemiology Unit, National Cancer Institute of Naples "G. Pascale Foundation", IRCCS, 80131 Naples, Italy
| | - G Ciliberto
- Scientific Directororate, National Cancer Institute "Regina Elena", IRCCS, 80131 Rome, Italy
| | - G Botti
- Pathology Unit, National Cancer Institute "G. Pascale Foundation", IRCCS, 80131 Naples, Italy
| | - L Quagliuolo
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Via L. De Crecchio, 7 - 80138 Naples, Italy
| | - M Caraglia
- Department of Biochemistry, Biophysics and General Pathology, University of Campania "L. Vanvitelli" Naples, Via L. De Crecchio, 7 - 80138 Naples, Italy
| | - M Capunzo
- Department of Medicine Surgery and Dentistry, University of Salerno, Baronissi, 84081 Salerno, Italy
| |
Collapse
|
8
|
Agnesi C, Da Lio B, Cozzolino D, Cardi L, Ben Bakir B, Hassan K, Della Frera A, Ruggeri A, Giudice A, Vallone G, Villoresi P, Tosi A, Rottwitt K, Ding Y, Bacco D. Hong-Ou-Mandel interference between independent III-V on silicon waveguide integrated lasers. Opt Lett 2019; 44:271-274. [PMID: 30644878 DOI: 10.1364/ol.44.000271] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 12/05/2018] [Indexed: 06/09/2023]
Abstract
The versatility of silicon photonic integrated circuits has led to a widespread usage of this platform for quantum information-based applications, including quantum key distribution (QKD). However, the integration of simple high-repetition-rate photon sources is yet to be achieved. The use of weak-coherent pulses (WCPs) could represent a viable solution. For example, measurement device independent QKD (MDI-QKD) envisions the use of WCPs to distill a secret key immune to detector side channel attacks at large distances. Thus, the integration of III-V lasers on silicon waveguides is an interesting prospect for quantum photonics. Here we report the experimental observation of Hong-Ou-Mandel interference with 46±2% visibility between WCPs generated by two independent III-V on silicon waveguide integrated lasers. This quantum interference effect is at the heart of many applications, including MDI-QKD. This Letter represents a substantial first step towards an implementation of MDI-QKD fully integrated in silicon and could be beneficial for other applications such as standard QKD and novel quantum communication protocols.
Collapse
|
9
|
Sinha L, Fogarty M, Zhou W, Giudice A, Brankov JG, Tichauer KM. Design and characterization of a dead-time regime enhanced early photon projection imaging system. Rev Sci Instrum 2018; 89:043707. [PMID: 29716355 PMCID: PMC6910604 DOI: 10.1063/1.5003620] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 03/25/2018] [Indexed: 06/08/2023]
Abstract
Scattering of visible and near-infrared light in biological tissue reduces spatial resolution for imaging of tissues thicker than 100 μm. In this study, an optical projection imaging system is presented and characterized that exploits the dead-time characteristics typical of photon counting modules based on single photon avalanche diodes (SPADs). With this system, it is possible to attenuate the detection of more scattered late-arriving photons, such that detection of less scattered early-arriving photons can be enhanced with increased light intensity, without being impeded by the maximum count rate of the SPADs. The system has the potential to provide transmittance-based anatomical information or fluorescence-based functional information (with slight modification in the instrumentation) of biological samples with improved resolution in the mesoscopic domain (0.1-2 cm). The system design, calibration, stability, and performance were evaluated using simulation and experimental phantom studies. The proposed system allows for the detection of very-rare early-photons at a higher frequency and with a better signal-to-noise ratio. The experimental results demonstrated over a 3.4-fold improvement in the spatial resolution using early photon detection vs. conventional detection, and a 1000-fold improvement in imaging time using enhanced early detection vs. conventional early photon detection in a 4-mm thick phantom with a tissue-equivalent absorption coefficient of μa = 0.05 mm-1 and a reduced scattering coefficient of μs' = 5 mm-1.
Collapse
Affiliation(s)
- L Sinha
- Biomedical Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - M Fogarty
- Biomedical Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - W Zhou
- Electrical and Computer Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - A Giudice
- MPD Micro-Photon-Devices, Via Stradivari 4, 39100 Bolzano, Italy
| | - J G Brankov
- Biomedical Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| | - K M Tichauer
- Biomedical Engineering, Illinois Institute of Technology, Chicago, Illinois 60616, USA
| |
Collapse
|
10
|
Crispo A, Augustin LSA, Grimaldi M, Nocerino F, Giudice A, Cavalcanti E, Di Bonito M, Botti G, De Laurentiis M, Rinaldo M, Esposito E, Riccardi G, Amore A, Libra M, Ciliberto G, Jenkins DJA, Montella M. Risk Differences Between Prediabetes And Diabetes According To Breast Cancer Molecular Subtypes. J Cell Physiol 2016; 232:1144-1150. [PMID: 27579809 DOI: 10.1002/jcp.25579] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 08/29/2016] [Indexed: 02/03/2023]
Abstract
Hyperglycemia and hyperinsulinemia may play a role in breast carcinogenesis and prediabetes and diabetes have been associated with increased breast cancer (BC) risk. However, whether BC molecular subtypes may modify these associations is less clear. We therefore investigated these associations in all cases and by BC molecular subtypes among women living in Southern Italy. Cases were 557 patients with non-metastatic incident BC and controls were 592 outpatients enrolled during the same period as cases and in the same hospital for skin-related non-malignant conditions. Adjusted multivariate logistic regression models were built to assess the risks of developing BC in the presence of prediabetes or diabetes. The analyses were repeated by strata of BC molecular subtypes: Luminal A, Luminal B, HER2+, and Triple Negative (TN). Prediabetes and diabetes were significantly associated with higher BC incidence after controlling for known risk factors (OR = 1.94, 95% CI 1.32-2.87 and OR = 2.46, 95% CI 1.38-4.37, respectively). Similar results were seen in Luminal A and B while in the TN subtype only prediabetes was associated with BC (OR = 2.43, 95% CI 1.11-5.32). Among HER2+ patients, only diabetes was significantly associated with BC risk (OR = 3.04, 95% CI 1.24-7.47). Furthermore, when postmenopausal HER2+ was split into hormone receptor positive versus negative, the association with diabetes remained significant only in the former (OR = 5.13, 95% CI 1.53-17.22). These results suggest that prediabetes and diabetes are strongly associated with BC incidence and that these metabolic conditions may be more relevant in the presence of breast cancer molecular subtypes with positive hormone receptors. J. Cell. Physiol. 232: 1144-1150, 2017. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- A Crispo
- Unit of Epidemiology, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - L S A Augustin
- Unit of Epidemiology, National Cancer Institute, G. Pascale Foundation, Naples, Italy.,Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada
| | - M Grimaldi
- Unit of Epidemiology, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - F Nocerino
- Unit of Epidemiology, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - A Giudice
- Unit of Epidemiology, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - E Cavalcanti
- Department of Diagnostic Pathology and Laboratory, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - M Di Bonito
- Department of Diagnostic Pathology and Laboratory, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - G Botti
- Department of Diagnostic Pathology and Laboratory, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - M De Laurentiis
- Department of Breast Surgery, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - M Rinaldo
- Department of Breast Surgery, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - E Esposito
- Department of Breast Surgery, National Cancer Institute, G. Pascale Foundation, Naples, Italy.,Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - G Riccardi
- Department of Clinical Medicine and Surgery, Federico II University, Naples, Italy
| | - A Amore
- Department of Surgery, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - M Libra
- Section of Clinical and General Pathology and Oncology, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - G Ciliberto
- Scientific Direction, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| | - D J A Jenkins
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Canada
| | - M Montella
- Unit of Epidemiology, National Cancer Institute, G. Pascale Foundation, Naples, Italy
| |
Collapse
|
11
|
Crispo A, Montella M, Buono G, Grimaldi M, D'Aiuto M, Capasso I, Esposito E, Amore A, Nocerino F, Augustin LSA, Giudice A, Di Bonito M, Giuliano M, Forestieri V, De Laurentiis M, Rinaldo M, Ciliberto G, De Placido S, Arpino G. Body weight and risk of molecular breast cancer subtypes among postmenopausal Mediterranean women. Curr Res Transl Med 2016; 64:15-20. [PMID: 27140595 DOI: 10.1016/j.retram.2016.01.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 01/07/2016] [Indexed: 10/22/2022]
Abstract
Breast cancer (BC) is the most common malignant tumor in women, obesity is associated with increased BC incidence and mortality and high levels of circulating insulin may negatively impact on cancer incidence. In the present study, we investigated whether the strength of several anthropometric and metabolic parameters varies between BC molecular subtypes. Eligible cases were 991 non-metastatic BC patients recruited between January 2009 and December 2013. Anthropometric, clinical and immunohistochemical features were measured. Multivariate logistic regression models were built to assess HER2 positive BC risk, comparing (a) triple positive (TP) with luminal A, luminal B and triple negative (TN) and (b) HER2-enriched group with luminal A, luminal B and TN. We stratified patients in pre- and post-menopause: significant differences emerged for luminal A in relation to age: they were more likely to be older compared to other groups. Among postmenopausal patients, the adjusted multivariate analysis showed that high BMI and high waist circumference were inversely correlated to TP subtype when compared to luminal B (OR=0.48 and OR=0.49, respectively). Conversely, HOMA-IR was a risk factor for TP when compared to luminal A and TN (OR=2.47 and OR=3.15, respectively). Our findings suggest a potential role of higher abdominal fat in the development of specific BC molecular subtypes in postmenopausal women. Moreover, they support a potential role of insulin resistance in the development of HER2 positive BC, although this role appears to be stronger when hormone receptors are co-expressed, suggesting a difference in the etiology of these two BC subtypes.
Collapse
Affiliation(s)
- A Crispo
- Unit of epidemiology, National Cancer Institute, G.-Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy.
| | - M Montella
- Unit of epidemiology, National Cancer Institute, G.-Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - G Buono
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via Sergio Pansini 5, 80131 Naples, Italy
| | - M Grimaldi
- Unit of epidemiology, National Cancer Institute, G.-Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - M D'Aiuto
- Department of Breast Surgery, National Cancer Institute G. Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - I Capasso
- Department of Breast Surgery, National Cancer Institute G. Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - E Esposito
- Department of Breast Surgery, National Cancer Institute G. Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - A Amore
- Department of Surgery, National Cancer Institute G. Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - F Nocerino
- Unit of epidemiology, National Cancer Institute, G.-Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - L S A Augustin
- Unit of epidemiology, National Cancer Institute, G.-Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy; Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, 61 Queen St. East, Toronto, Canada
| | - A Giudice
- Unit of epidemiology, National Cancer Institute, G.-Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - M Di Bonito
- Division of Pathology, National Cancer Institute, G. Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - M Giuliano
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via Sergio Pansini 5, 80131 Naples, Italy
| | - V Forestieri
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via Sergio Pansini 5, 80131 Naples, Italy
| | - M De Laurentiis
- Department of Breast Surgery, National Cancer Institute G. Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - M Rinaldo
- Department of Breast Surgery, National Cancer Institute G. Pascale Foundation, Via Mariano Semmola 1, 80131 Naples, Italy
| | - G Ciliberto
- Scientific Direction, National Cancer Institute, G. Pascale Foundation, Cappella dei Cangiani 1, 80131 Naples, Italy
| | - S De Placido
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via Sergio Pansini 5, 80131 Naples, Italy
| | - G Arpino
- Department of Clinical Medicine and Surgery, University of Naples Federico II, Via Sergio Pansini 5, 80131 Naples, Italy
| |
Collapse
|
12
|
Giudice A, Colangeli W, Cristofaro MG. Percutaneous reduction of an isolated zygomatic fracture using a wire suture. Br J Oral Maxillofac Surg 2013; 51:e201-2. [DOI: 10.1016/j.bjoms.2012.06.015] [Citation(s) in RCA: 9] [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] [Received: 04/07/2012] [Accepted: 06/29/2012] [Indexed: 11/17/2022]
|
13
|
Yushkov Y, Dikman S, Alvarez-Casas J, Giudice A, Hoffman A, Goldstein M. Optimized Technique in Needle Biopsy Protocol Shown to Be of Greater Sensitivity and Accuracy Compared to Wedge Biopsy. Transplant Proc 2010; 42:2493-7. [DOI: 10.1016/j.transproceed.2010.04.058] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Accepted: 04/21/2010] [Indexed: 11/26/2022]
|
14
|
Cristofaro MG, Giudice A, Colangeli W, Amantea M, Giudice M. Piezo-electric surgery use for the management of patients with onj drug-induced: our experience. BMC Geriatr 2010. [PMCID: PMC3290199 DOI: 10.1186/1471-2318-10-s1-a55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
|
15
|
Giudice M, Giudice A, Colangeli W, Cristofaro MG. The buccal fat pad in recostruction of malignant lesions of the oral cavity: our experience on 31 cases. BMC Geriatr 2010. [PMCID: PMC3290203 DOI: 10.1186/1471-2318-10-s1-a59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
|
16
|
Barbieri A, Palma G, Rosati A, Turco M, Petrillo A, Vecchione M, Di Bernardo M, Giudice A, Arra C, Iaffaioli M. 9329 eNOS plays a critical role in the tumor initiation and progression in chronically stressed mice. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71973-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
|
17
|
Laganà A, Forte S, Giudice A, Arena MR, Puglisi PL, Giugno R, Pulvirenti A, Shasha D, Ferro A. miRò: a miRNA knowledge base. Database (Oxford) 2009; 2009:bap008. [PMID: 20157481 PMCID: PMC2794794 DOI: 10.1093/database/bap008] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2009] [Revised: 06/18/2009] [Accepted: 06/23/2009] [Indexed: 12/16/2022]
Abstract
miRò is a web-based knowledge base that provides users with miRNA-phenotype associations in humans. It integrates data from various online sources, such as databases of miRNAs, ontologies, diseases and targets, into a unified database equipped with an intuitive and flexible query interface and data mining facilities. The main goal of miRò is the establishment of a knowledge base which allows non-trivial analysis through sophisticated mining techniques and the introduction of a new layer of associations between genes and phenotypes inferred based on miRNAs annotations. Furthermore, a specificity function applied to validated data highlights the most significant associations. The miRò web site is available at: http://ferrolab.dmi.unict.it/miro.Database URL:http://ferrolab.dmi.unict.it/miro.
Collapse
Affiliation(s)
- A. Laganà
- Department of Biomedical Sciences, University of Catania, Italy, 95124, Department of Mathematics and Computer Sciences, University of Catania, Catania, Italy, 95125 and Courant Institute of Mathematical Sciences, New York University, New York, USA, 10012-1185
| | - S. Forte
- Department of Biomedical Sciences, University of Catania, Italy, 95124, Department of Mathematics and Computer Sciences, University of Catania, Catania, Italy, 95125 and Courant Institute of Mathematical Sciences, New York University, New York, USA, 10012-1185
| | - A. Giudice
- Department of Biomedical Sciences, University of Catania, Italy, 95124, Department of Mathematics and Computer Sciences, University of Catania, Catania, Italy, 95125 and Courant Institute of Mathematical Sciences, New York University, New York, USA, 10012-1185
| | - M. R. Arena
- Department of Biomedical Sciences, University of Catania, Italy, 95124, Department of Mathematics and Computer Sciences, University of Catania, Catania, Italy, 95125 and Courant Institute of Mathematical Sciences, New York University, New York, USA, 10012-1185
| | - P. L. Puglisi
- Department of Biomedical Sciences, University of Catania, Italy, 95124, Department of Mathematics and Computer Sciences, University of Catania, Catania, Italy, 95125 and Courant Institute of Mathematical Sciences, New York University, New York, USA, 10012-1185
| | - R. Giugno
- Department of Biomedical Sciences, University of Catania, Italy, 95124, Department of Mathematics and Computer Sciences, University of Catania, Catania, Italy, 95125 and Courant Institute of Mathematical Sciences, New York University, New York, USA, 10012-1185
| | - A. Pulvirenti
- Department of Biomedical Sciences, University of Catania, Italy, 95124, Department of Mathematics and Computer Sciences, University of Catania, Catania, Italy, 95125 and Courant Institute of Mathematical Sciences, New York University, New York, USA, 10012-1185
| | - D. Shasha
- Department of Biomedical Sciences, University of Catania, Italy, 95124, Department of Mathematics and Computer Sciences, University of Catania, Catania, Italy, 95125 and Courant Institute of Mathematical Sciences, New York University, New York, USA, 10012-1185
| | - A. Ferro
- Department of Biomedical Sciences, University of Catania, Italy, 95124, Department of Mathematics and Computer Sciences, University of Catania, Catania, Italy, 95125 and Courant Institute of Mathematical Sciences, New York University, New York, USA, 10012-1185
| |
Collapse
|
18
|
Cristofaro MG, Giudice A, Amantea M, Zinno G, Giofre E, Giudice M. O.472 Ultrasound activated pin flxation in pediatric maxillo-facial traumas. J Craniomaxillofac Surg 2008. [DOI: 10.1016/s1010-5182(08)71596-8] [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: 11/30/2022] Open
|
19
|
Giudice A, Cristofaro M, Amantea M, Giudice M. O.550 The Neurosign™ 800 nerve monitor in parotid gland surgery. J Craniomaxillofac Surg 2008. [DOI: 10.1016/s1010-5182(08)71674-3] [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: 12/01/2022] Open
|
20
|
Amantea M, Cristofaro M, Giudice A, Zinno G, Giofrè E, Giudice M. O.142 Osteonecrosis drug-induced (bisphosphonates) of the jaws. J Craniomaxillofac Surg 2008. [DOI: 10.1016/s1010-5182(08)71266-6] [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: 11/26/2022] Open
|
21
|
Grottoli E, Ciriello S, Gabriele M, Giudice A, Lilli M, Mammi F, Quaranta D, Roccia K, Spadone F, Magnavita N. [Assaults and nuisances in health care environment]. G Ital Med Lav Ergon 2007; 29:653-655. [PMID: 18409889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A descriptive exploratory survey was used to investigate the occurrence of physical workplace violence among health care workers as well as the complaints and responses to such violence. The questionnaire was used for collecting data from a sample of 355 workers. Results showed that 25.6% of hospital workers reported physical aggression at any time of the working life, 8.5% in the last year. Injured workers showed significantly higher environmental complaint score than other workers. The results of the study indicated the importance of adopting hospital policies for dealing with incidents of violence.
Collapse
Affiliation(s)
- E Grottoli
- Servizio di Sorveglianza Sanitaria, ASL RMF, Civitavecchia.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Riva G, Puglisi CG, Giudice A, Papa R, Cavallaro T, Chiaramonte I, Pero G. Synovial cyst of dens axis. A case report. Neuroradiol J 2006; 19:379-81. [PMID: 24351226 DOI: 10.1177/197140090601900318] [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: 04/03/2006] [Accepted: 05/11/2006] [Indexed: 11/16/2022] Open
Abstract
Synovial cyst of dens axis is a rare pathology accounting for 0.5%-1% of all cases of spinal synovial cysts. The lesion is normally found in the final part of the lumbar tract. The etiopathogenesis is uncertain and many theories abound Clinical inspection is important and the symptoms are caused by compression of posterior roots of spinal nerves and by spinal canal stenosis. Differential diagnosis is with disc herniation or tumours, but the diagnosis can only be established after CT and MRI examination. We describe the case of an 83-year-old man who underwent radiological exmaination after ten years of symptoms. The pathology was diagnosed only after the CT and MRI investigation.
Collapse
Affiliation(s)
- G Riva
- U.O. di Neuroradiologia; Università degli Studi di Catania, Azienda Ospedaliero-Universitaria, Policlinico di Catania, Italy -
| | | | | | | | | | | | | |
Collapse
|
23
|
Abstract
Vascular malformations are common lesions accounting for approximately 7% of all benign tumours, the majority of which develop in the head and neck region. Generally, vascular malformations such as lymphangiomas, haemangiomas, and arteriovenous communications in the head and the neck represent only an aesthetic problem. However, when localized in the tongue, these lesions can create clinical problems consisting, in the majority of cases, in spontaneous haemorrhage from the mouth. Although uncommon, progressive asymmetric growth of the tongue (macroglossia) can be also observed. Three consecutive cases of vascular malformations of the tongue have been studied with magnetic resonance imaging (MRI). Neither contrast medium administration nor angio-MR technique was used. In our experience, MR appears to be the ideal technique to define the site, extension and origin of vascular malformations, due to its ability to depict the typical signal flow voids in the lesions and to differentiate slow-flow lesions from high-flow ones.
Collapse
|
24
|
Abstract
Concretions in the tonsil or peritonsillar area are an infrequent entity in clinical practice. Some patients have no symptoms or they can present with fetor oris or odynophagia. The lesions are often detected incidentally during radiographic examination. This pathology can be related to lithiasis in other regions of body. The authors describe a tonsillolith accidentally detected in a patient with a lithiasis of left submandibular gland. We review published cases of tonsilloliths and analyse the causes of stone formation in peritonsillar and tonsil regions.
Collapse
Affiliation(s)
- M Giudice
- Department of Oral and MaxilloFacial Surgery, University Magna Graecia of Catanzaro, Italy
| | | | | | | |
Collapse
|
25
|
Corvo G, Tartaro G, Giudice A, Diomajuta A. Distribution of craniomandibular disorders, occlusal factors and oral parafunctions in a paediatric population. Eur J Paediatr Dent 2003; 4:84-8. [PMID: 12870977] [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
AIM The aim of this work was to gather clinical data on craniomandibular (CMD)/temporomandibular joint (TMJ) disorders in a paediatric population. METHODS The clinical study population comprised patients with TMJ disorders who were being treated in the orthognathic ambulatory clinic of the University of Naples, where an instrumental and clinical study was performed. Data were recorded for extra and intraoral findings, Angles classification and malocclusions. Radiographic examinations were carried out. Study models were fabricated for evaluation. TMJs were assessed by palpation as well as masseter, temporal, suprahyoid, sternocleidomastoid, suboccipital, paravertebral and trapezius muscles to evaluate any possible pain. Auscultation of the TMJ was used to determine presence of articular sounds and their type (cracks, crunches, clicks) by the use of a stethoscope. Pain localisation was evaluated according to these movements taking into account site, intensity, frequency, and duration. Episodes of headache were recorded according to its intensity (mild, moderate, intense), frequency (daily, weekly, monthly), site (top of the head, occiput, temple, frontal, overorbital region, back of the head) and the duration of the episodes (in minutes, hours or whether constant). RESULTS A substantial number of the 106 patients included in the study showed a malocclusion with prevalence in Angles Class II cases. Bruxism, onychophagy, TMJ pain, headache, mouth opening partial inability, mastication difficulty and articular sound were the most representative symptoms. CONCLUSION The identification and recognition of factors, such as malocclusions and parafunctions, are considered fundamental to early diagnosis of TMJ problems, which is the most useful way to avoid a dysfunctional state of the stomatognathic system.
Collapse
Affiliation(s)
- G Corvo
- Department of Head and Neck, Oral Cavity and Audio-Verbal Communication, II University of Naples, Italy
| | | | | | | |
Collapse
|
26
|
Fera MT, Carbone M, Buda C, Aragona M, Panetta S, Giannone M, La Torre F, Giudice A, Losi E. Correlation between Helicobacter pylori infection and IL-18 mRNA expression in human gastric biopsy specimens. Ann N Y Acad Sci 2002; 963:326-8. [PMID: 12095959 DOI: 10.1111/j.1749-6632.2002.tb04125.x] [Citation(s) in RCA: 10] [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: 11/28/2022]
Abstract
Our data indicate that H. pylori infection is associated with active interleukin-18 production in patients with chronic gastritis. Different cell types appear to be involved in this activity and may play a role in the development of immunopathologic damage.
Collapse
Affiliation(s)
- M T Fera
- Dipartimento di Patologia e Microbiologia Sperimentale, Facoltà di Medicina e Chirurgia, Università di Messina, Messina, Italy.
| | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Giudice A, Gould JA, Freeman KB, Rastan S, Hertzog P, Kola I, Iannello RC. Identification and characterization of alternatively spliced murine Rgs11 isoforms: genomic structure and gene analysis. Cytogenet Genome Res 2002; 94:216-24. [PMID: 11856884 DOI: 10.1159/000048819] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
The RGS proteins comprise a large family of proteins which were recently identified as negative Regulators of G-protein Signaling. They have been shown to act as GTPase Activating Proteins (GAPs) towards the G(alpha) subunits of heterotrimeric G-proteins. In addition to this GAP activity, which has been shown to occur through the RGS domain, RGS proteins are likely to possess other functions due to the existence of other domains in these molecules (De Vries and Farquhar, 1999; Hepler, 1999). Here, we report the molecular characterization of the murine Rgs11 gene. The gene encodes a protein with high homology to human RGS11 (79.9%), containing conserved DEP (Dishevelled/EGL-10/Pleckstrin) and GGL (G protein gamma-like) domains. The gene is comprised of at least 13 exons, spanning 8-9 kb. Spliced transcript variants were identified which are co-expressed with 5A3, a transcript that contains the largest ORF. Expression of mouse Rgs11 was found to be restricted to specific tissues with a unique pattern of expression observed in brain.
Collapse
Affiliation(s)
- A Giudice
- Monash Institute of Reproduction and Development, Monash University, Monash Medical Centre, Clayton, Vic., Australia
| | | | | | | | | | | | | |
Collapse
|
28
|
Giudice M, Marra A, Amodio A, Giudice A. [Unusual case of hypercondensing malignant osteodysplasty: osteopetrosis]. Minerva Stomatol 2001; 50:279-83. [PMID: 11573077] [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: 02/21/2023]
Abstract
Osteopetrosis, known also as Albers-Schonberg disease, is a genetic disorder causing a generalized sclerosis of the bones and the reduction of the marrow. The diagnosis is often secondary to pathologic processes and its usually observed through specific X-ray researches. The principal cause of osteopetrosis is to attribute to a deficit of bone resorption and remodelling. Osteomyelitis is a complication of osteopetrosis. The purpose of this article is based on several point: 1) to know the cause of osteopetrosis, then to classify and check it; 2) to present the case who did not respond to of a patient with osteopetrosis complicated by maxillary and phalanx osteomyelitis common therapies and give an accurate analysis.
Collapse
Affiliation(s)
- M Giudice
- Facoltà di Medicina e Chirurgia, Dipartimento Assistenziale di Patologia della Testa e del Collo, Orale e Maxillo-Facciale, Cattedra di Pedodonzia Chirurgica, II Università degli Studi, Naples, Italy
| | | | | | | |
Collapse
|
29
|
Abstract
Normal somatic cells have a finite number of divisions, a limited capacity to proliferate. Human telomeres, the long DNA TTAGGG repeats at the ends of chromosomes, are considered a molecular clock marker. The gradual and progressive telomere shortening at each replicative cycle is associated, through the activation of pRB and p53 pathways and genomic instability, to the replicative senescence, a non-dividing state and widespread cell death. Activation of telomere maintenance [telomerase; or alternative lengthening of telomeres mechanisms (ALT), or other adaptive responses] can revert this program. Although not completely known, several mechanisms and modulating agents may be able to up and down-regulate telomere length and its maintenance. Chemopreventive therapies for the up-regulation of telomerase activity, able to prolong the life of cell cultures in a phenotypically youthful state, could have important applications in research and medicine. On the contrary the therapeutic down-regulation of telomerase activity may be used in cancer therapy. Telomerase expression per se is not oncogenic, but telomere shortening and maintenance seem to be crucial events in tumor formation. Thus a particular focus has been pointed out relatively to the immortalization of normal or potential pre-cancerous cells. With the extension of life span the probability to get in contact with carcinogens increases, genetic instability, oncogene activation and/or onco-suppressor gene inactivation (i.e. p53, pRB, ras): the cancer transformation can be then induced in predisposed cells, depending on their genetic context, by the activation of telomere maintenance. Pharmacological intervention may be able to modulate the rate of living, by increasing life span of few specific target cells, or decreasing it in proliferating <cancer and pre-cancer cells>. Because of the unknown state of the enormous cell number of the human organism, is it safe to extend the human life span by therapeutic agents?
Collapse
Affiliation(s)
- M Aragona
- Unita Operativa di Oncologia Medica, Universita di Messina, Messina, Italy.
| | | | | | | | | | | | | |
Collapse
|
30
|
Aragona M, Buda CA, Panetta S, Morelli M, Giudice A, Campagna FL, Pontoriero A, Cascinu S, La Torre F. Immunohistochemical telomeric-repeat binding factor-1 expression in gastrointestinal tumors. Oncol Rep 2000; 7:987-90. [PMID: 10948327 DOI: 10.3892/or.7.5.987] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The maintenance of telomere length has been hypothesized to be involved in the early steps of cancerogenesis. A physiologic modulation of telomere maintenance is exerted by TRF1 (telomeric-repeat binding factor-1), which deletion permits telomere elongation. Gastrointestinal neoplastic (n=19) and non-neoplastic tissues (six inflammatory disease and six normal mucosa distant from tumor at least 5 cm) were studied, by immunohistochemistry, for TRF1 expression, by using a polyclonal antibody anti-TRF1. Differentiated and not proliferating epithelial secretory cells (Ki67 and p53 negative cells) were stained by anti-TRF1, which did not stain tumor cells in all cases but one (p<0.0001). p53 was expressed by 26% of tumor cases. Inflammatory gastrointestinal non-tumor tissues showed lower expression of TRF1 in epithelial secreting cells compared to normal tissues (p=0.008). These preliminary data suggest that down-regulation of the TRF1 expression in tumor cells may be involved in cell immortalization as an initial step in gastrointestinal carcinogenesis (before p53 alteration), and may open new perspectives, when confirmed, in gastrointestinal tumor prognosis.
Collapse
Affiliation(s)
- M Aragona
- Unita Operativa di Oncologia Medica, Universita di Messina, 98121 Messina, Italy.
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Fulco RA, Costa C, Germanò MP, Torre EA, Viscomi MG, Salimbeni V, Maisano R, Giudice A, Costa G. Hepatotoxicity of camptothecin derivatives in a primary culture system of rat hepatocytes. J Chemother 2000; 12:345-51. [PMID: 10949985 DOI: 10.1179/joc.2000.12.4.345] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The topoisomerase I inhibitors are a new class of antineoplastic agents currently under clinical development. Among these compounds there are some camptothecin (CPT) derivatives with improved toxicity profiles and antitumor activity: irinotecan (CPT-11) and topotecan (TPT), particularly active against colon, lung and ovarian cancer. The aim of this study was to evaluate the cytotoxicity of CPT, CPT-11, its metabolite SN38 and TPT in a primary culture system of rat hepatocytes. Cytotoxicity was evaluated by measuring the leakage of lactate dehydrogenase (LDH) into the medium and by assessing cell viability in terms of tetrazolium salts (MTT) reduction by mitochondrial dehydrogenase activity. Our results showed that cytotoxicity was limited in the case of short drug exposure. There was a significant and time-dependent increase in LDH leakage and a significant time- and dose-dependent decrease in MTT reduction after 3 h of incubation (p<0.01). In the treatments with doses related to peak plasma levels, CPT-11 was less responsible for the observed in vitro hepatotoxicity than its metabolite SN38; TPT had lower LDH leakage compared to SN38 and CPT-11 but showed significant and early (3 h) decrease in MTT reduction: this may mean a different mechanism of cellular damage. These results demonstrate that CPT derivatives are directly toxic to liver cells in a distinct time- and dose-related response.
Collapse
Affiliation(s)
- R A Fulco
- Sez. Dec. IST-Genova c/o Institute of Oncology, Faculty of Medicine, University of Messina, Italy
| | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Aragona M, Panetta S, Rizzotti P, La Torre I, Giudice A, La Torre F. [Importance of chemoprevention in oncology]. Minerva Med 2000; 91:169-77. [PMID: 11155466] [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: 02/18/2023]
Abstract
The therapeutic approach to cancer is generally limited to the advanced phases of disease. The preventive strategies aim at eliminating or reducing the exposition to known carcinogenes. We act with pharmacological and/or with an accurate dietary education to induce cellular differentiation phenomena, cytostasis and apoptosis. Chemoprevention acts both on the inductive phase (metabolic activation, DNA adducts), as well as on the promotion/proliferation of the long pre-clinical period of latency (antioxidants, anti-inflammatory, retinoids, carotenoids, vitamins and micronutrients, hormones and hormonal inhibitors, polyamine inhibitors, ditholetions, isothiocyanates, telomerase inhibitors, etc). Unanimous agreement has been reached on the preventive role of retinoids in head and neck tumors and of the cervical uterus, of hormonal inhibitors in breast and prostate cancer, and of anti-inflammatory in colorectal cancer. New and more accurate parameters for the evaluation of results and individual applications of chemopreventive strategies are linked to the biological research of high-risk subjects (genetic damage) or increased individual susceptibility. Caution, instead, should be applied in the clinical trial planning. An increased risk in developing and dying of lung tumor in smokers has been shown for the use vitamin A. Many clinical studies have been started in order to establish an efficient chemoprevention in oncology, and with the early diagnostic programs, and the evaluation of genotypic and phenotypic alterations, encouraging results will be reached for the next millennium.
Collapse
Affiliation(s)
- M Aragona
- Unità Operativa di Oncologia Medica, Università degli Studi, Messina.
| | | | | | | | | | | |
Collapse
|
33
|
Iannello RC, Gould JA, Young JC, Giudice A, Medcalf R, Kola I. Methylation-dependent silencing of the testis-specific Pdha-2 basal promoter occurs through selective targeting of an activating transcription factor/cAMP-responsive element-binding site. J Biol Chem 2000; 275:19603-8. [PMID: 10766751 DOI: 10.1074/jbc.m001867200] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.5] [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: 11/06/2022] Open
Abstract
In this study, we demonstrate that methylation-dependent repression of the Pdha-2 core promoter is mediated regionally through a consensus activating transcription factor/cAMP-responsive element-binding site located between nucleotides -54 and -62 upstream of the major transcriptional start site. Targeting of the CpG dinucleotide within this cis-element significantly disrupts the ability of this basal promoter to activate gene expression in vitro and completely abolishes promoter activity in vivo. DNase I footprinting experiments indicated that availability of the nuclear factor(s) binding this element is limiting in sexually immature mouse testis, and as such, these factors may play an important role in the coordinate activation of early spermatogenic gene expression. Interestingly, CpG dinucleotides associated with the hypersensitive region flanking the activating transcription factor/cAMP-responsive element-binding site appear to confer some conformational structure on the promoter since mutations at these specific CpG dinucleotides result in elevated basal levels of transcription. This raises the possibility of a potential bifunctional role for CpG dinucleotides in either methylation-dependent or -independent processes. Our data support the notion that hypomethylation and transcription factor recruitment are necessary events that precede gene activation at the early stages of spermatogenesis.
Collapse
Affiliation(s)
- R C Iannello
- Centre for Functional Genomics and Human Disease, Monash Institute of Reproduction and Development, Monash Medical Centre, 246 Clayton Road, Clayton, Victoria 3168, Australia.
| | | | | | | | | | | |
Collapse
|
34
|
Giudice A, Rizzo M, Rossi RT, Bonaffini O, Buda CA, Pettineo G. Diagnosis and survey of abnormal/atypical squamous cells of undetermined significance and low-grade squamous intraepithelial lesions: a retrospective study. Anticancer Res 2000; 20:1195-9. [PMID: 10810421] [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 new Bethesda System (BS) terminology has opened a series of problems about the Abnormal/Atypical Squamous Cells of Undetermined Significance (ASCUS) and Low-Grade Squamous Intraepithelial Lesion (L-SIL) categories, particularly on their treatment and follow-up. Moreover in these field a non negligible portion of lesions progress to High-Grade Lesion (H-SIL). With the aim of comparing the data, we examined samples observed in our Ambulatories with 6-12 months follow-up. We observed retrospectively 11.197 Pap test from January 1995 to June 1997, mostly first visits. All received a Pap test, colposcopy and gynaecological examination. Biopsy and histological standard examinations were performed when necessary. Alterations classified as mild epithelial abnormalities, of both ASCUS and L-SIL categories, were observed in 146 cases: 78 ASCUS and 68 L-SIL. Of these 48 were CIN 1/mild dysplasia (25 HPV associated) and 20 were HPV lesions, according to BS. All the cases with persistent ASCUS and L-SIL underwent a second control. In these 45 cases we observed 2 new cases of H-SIL and one of L-SIL; so 82.3% and 30.7% of ASCUS and L-SIL regressed to negatives. In the stable group 11.8% and 60.4% were ASCUS and L-SIL. Moreover 5.9% of ASCUS and 4.8% of L-SIL progressed to H-SIL. No cases of invasive cancer were observed. Our data show that ASCUS and L-SIL diagnosis can identify 6% and 4.8% of H-SIL respectively. In addition 17-18% of ASCUS were stable or progressed. These two categories, as already demonstrated in other studies, are mostly at risk.
Collapse
Affiliation(s)
- A Giudice
- IST (Istituto Nazionale per la Ricerca sul Cancro) Genova, Sez. Dec. Messina, Italy
| | | | | | | | | | | |
Collapse
|
35
|
Pastura G, Mesiti M, Saitta M, Romeo D, Settineri N, Maisano R, Petix M, Giudice A. [Lymphedema of the upper extremity in patients operated for carcinoma of the breast: clinical experience with coumarinic extract from Melilotus officinalis]. Clin Ter 1999; 150:403-8. [PMID: 10756659] [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: 02/16/2023]
Abstract
OBJECTIVES The aim of this clinical study was to verify the therapeutic activity of cumarinic extract of Melilotus officinalis (CEMO) in patients with chronic lymphedema of the upper arm caused by lymphadenectomy for breast cancer. Cumarine, in fact, has antiedemic properties due to macrophagic action that stimulates proteolysis in the tissues affected by chronic lymphedema. PATIENTS AND METHODS In an open clinical study we enrolled 24 patients with chronic upper arm lymphedema due to post-lymphadenectomy of the axilla for breast cancer. 21 patients were eligible to receive 400 mg of CEMO containing 8 mg of cumarine in a sole daily administration for 6 months. We measure the circumference of the upper arm at 3 and 6 months from treatment. We evaluated the symptoms and tolerability through a questionnaire given to the patients at every clinical control. RESULTS Of the 21 (87.5%) patients eligible, only 14 (66.6%) were treated with CEMO according to protocol. Of these 11 patients (52.3%) had a reduction of the circumference of the affected arm of 5% with respect to base values. Three patients (14.2%) had no change. In 12 patients (57.1%) symptoms improved. As for tolerability: 3 patients (14.2%) had transitory gastrointestinal side-effects. There was worsening of lymphedema and symptoms in 4 patients (19%) that did not receive CEMO and were followed as controls. Three patients (14.2%) were not evaluable because they were lost to follow-up. CONCLUSIONS Cumarinic extract of Melilotus officinalis (CEMO) was effective in reducing lymphedema in 79% of the pts treated for a period of six months. The median reduction of the upper arm circumference was modest (5% with respect to initial values) but statistically significant (p = 0.048). Treatment with CEMO for lymphedema could be associated to the physiotherapy given to these patients such as manual lymph drainage (MLD).
Collapse
Affiliation(s)
- G Pastura
- IST (Istituto Nazionale per la Ricerca sul Cancro) Genova, Italia
| | | | | | | | | | | | | | | |
Collapse
|
36
|
D'Amore F, Buda CA, Magnano A, Bottari A, Consolo P, Romeo L, Giudice A. [Endoscopic treatment of a gastric phytobezoar using electrohydraulic lithotripsy: a case report]. G Chir 1998; 19:475-7. [PMID: 9882953] [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: 02/09/2023]
Abstract
The Authors report a case of spontaneous large gastric phytobezoar in an unoperated stomach and describe this pathology especially with regards to pathogenesis, diagnosis and endoscopic treatment.
Collapse
Affiliation(s)
- F D'Amore
- Cattedra di Diagnostica e Chirurgia Endoscopica, Università degli Studi di Messina
| | | | | | | | | | | | | |
Collapse
|
37
|
Giudice A, Herbert JM, Maffrand JP, Manara L, Manzoni L, Le Fur G. Prevention of platelet-activating factor-induced gastrointestinal lesions in rats by the new specific antagonist N-(2-dimethylaminoethyl)-N-(3-pyridinylmethyl)[4-(2,4,6-triisopropylphe nyl) thiazol-2yl]amine. Arzneimittelforschung 1996; 46:407-12. [PMID: 8740089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
SR 27417 (CAS 136468-36-5, N-(2-dimethylaminoethyl)-N-(3-pyridinylmethyl)[4-(2,4,6-triisop ropylphenyl) thiazol-2-yl]amine), a highly potent platelet-activating factor (PAF) receptor antagonist, was tested for its ability to prevent macroscopic and histologically assessed gastrointestinal (GI) lesions in rats induced by PAF as compared to the reference compound apafant. Both compounds were orally effective but SR 27417 prevented the gut lesioning effects of PAF at lower doses than apafant. In addition, a dose of apafant (1.5 mg/kg) that showed almost maximal effect when given 30 min before PAF, had lost most of its protective action by 3 h, while SR 27417 at a comparably effective dose (0.5 mg/kg) retained substantial ability to prevent gut lesions in all the GI tract segments investigated, 18 h after administration. These findings suggest that SR 27417 is a potent and long lasting inhibitor of PAF-induced gastrointestinal lesions in rats.
Collapse
|
38
|
Manara L, Badone D, Baroni M, Boccardi G, Cecchi R, Croci T, Giudice A, Guzzi U, Landi M, Le Fur G. Functional identification of rat atypical beta-adrenoceptors by the first beta 3-selective antagonists, aryloxypropanolaminotetralins. Br J Pharmacol 1996; 117:435-442. [PMID: 8821531 PMCID: PMC1909316 DOI: 10.1111/j.1476-5381.1996.tb15209.x] [Citation(s) in RCA: 100] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
1. We have assessed the relative abilities of compounds belonging to the new aryloxypropanolaminotetralin (APAT) class and of the reference beta-adrenoceptor-blocking agent, alprenolol, to antagonize functional responses in vitro and in vivo involving atypical (beta 3) or conventional (beta 1 and beta 2) beta-adrenoceptors. 2. The range of pA2 values for three representative APATs against inhibition of spontaneous motility in the rat isolated colon by the selective beta 3-adrenoceptor agonist, SR 58611A (8.1-8.8), was well above similarly calculated values for non-competitive antagonism of guinea-pig trachea relaxation by salbutamol (beta 2, 6.5-6.9) and the atrial chronotropic response by isoprenaline (beta 1, 6.7-7.3). Alprenolol, however, was substantially more potent in antagonizing atrial (pA2, 8.2) and tracheal (pA2, 8.9) responses than SR 58611A mediated inhibition of colonic motility (pA2, 6.8). 3. Several APAT isomers with different configurations at the chiral carbons, when tested on isolated organs, presented stringent stereochemical requirements for beta 3-selectivity, including high antagonist potency-ratios between active and inactive enantiomers. 4. In vivo, the inhibition of colonic motility and the thermogenic response of brown adipose tissue elicited in rats by the selective beta 3-adrenoceptor agonists SR 58611A and BRL 37344 respectively were substantially diminished by the representative APAT, SR 59230A, at oral doses (< or = 5 mg kg-1) well below those half maximally effective (ID50) for preventing beta 1-(isoprenaline tachycardia > or = 80 mg kg-1) or beta 2-(salbutamol bronchodilatation, 44 mg kg-1) mediated responses. Alprenolol, as expected, was a less potent and nonselective antagonist of the putative beta 3-responses. 5. These findings support APATs as the first potent, orally effective selective antagonists at beta 3-adrenoceptors, and provide final unambiguous evidence that beta 3-adrenoceptors underlie inhibition of colonic motility and brown adipose tissue thermogenesis in rats.
Collapse
Affiliation(s)
- L Manara
- Research Centre Sanofi Midy, Milan, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Croci T, Giudice A, Manara L, Gully D, Le Fur G. Promotion by SR 48692 of gastric emptying and defaecation in rats suggesting a role of endogenous neurotensin. Br J Pharmacol 1995; 115:383-4. [PMID: 7582445 PMCID: PMC1908395 DOI: 10.1111/j.1476-5381.1995.tb16343.x] [Citation(s) in RCA: 8] [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: 01/26/2023] Open
Abstract
We investigated the influence of the nonpeptide neurotensin receptor antagonist, SR 48692, administered orally, on gastric emptying and on acute defaecation. SR 48692 dose-dependently (ED50 approximately 0.7 microgram kg-1) increased gastric emptying of a food suspension, but it had no effect on that of a non-caloric meal. SR 48692 also dose-dependently promoted defaecation and increased faecal water content. We suggest that antagonism of endogenous neurotensin accounts for the gastric emptying and defaecation promoting action of SR 48692.
Collapse
Affiliation(s)
- T Croci
- SANOFI-Midy S.p.A. Research Center, Milan, Italy
| | | | | | | | | |
Collapse
|
40
|
Tralongo P, Di Mari A, Scibilia G, Bosco V, Giudice A, Respini D, Failla G. Prolonged 5-fluorouracil infusion in patients with metastatic colon cancer pretreated with bolus schedule of the same agent. Anticancer Res 1995; 15:635-8. [PMID: 7539242] [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: 01/25/2023]
Abstract
5-Fluorouracil (5FU) is the most important drug in the treatment or gastrointestinal cancer. 5FU can be administered by bolus or continuous infusion. It seems that continuous infusion is capable of producing responses in patients pretreated with bolus of the same drug. To overcome drug resistance in metastatic colon cancer patients, we have administered (via programmable pump) 5FU by prolonged infusion with doses of 250 mg/m2/die for six weeks with a one week rest period. Twenty-one patients with disease progression following bolus 5FU leucovorin were enrolled. The treatment was well tolerated with mucositis (grade I-II) in five patients and hand-foot syndrome in four; these side effects were managed with brief interruption of the infusion. Four partial responses and six stable disease were obtained. Two patients are alive after 14 months. The data of this study suggest that it is possible to overcome acquired 5FU bolus resistance by use of different schedules of the same drug.
Collapse
Affiliation(s)
- P Tralongo
- Ambulatorio Oncologico, LILT, Siracusa, Italy
| | | | | | | | | | | | | |
Collapse
|
41
|
Langlois M, Soulier JL, Rampillon V, Gallais C, Brémont B, Shen S, Yang D, Giudice A, Sureau F. Synthesis of quinazoline-2,4-dione and naphthalimide derivatives as new 5-HT3 receptor antagonists. Eur J Med Chem 1994. [DOI: 10.1016/0223-5234(94)90192-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
42
|
Bachy A, Héaulme M, Giudice A, Michaud JC, Lefevre IA, Souilhac J, Manara L, Emerit MB, Gozlan H, Hamon M. SR 57227A: a potent and selective agonist at central and peripheral 5-HT3 receptors in vitro and in vivo. Eur J Pharmacol 1993; 237:299-309. [PMID: 7689975 DOI: 10.1016/0014-2999(93)90282-m] [Citation(s) in RCA: 63] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
SR 57227A (4-amino-(6-chloro-2-pyridyl)-1 piperidine hydrochloride) is a novel compound with high affinity and selectivity for the 5-HT3 receptor. The compound had affinities (IC50) varying between 2.8 and 250 nM for 5-HT3 receptor binding sites in rat cortical membranes and on whole NG 108-15 cells or their membranes in vitro, assayed under various conditions with [3H]S-zacopride or [3H]granisetron as radioligand. Like reference 5-HT3 receptor agonists, SR 57227A stimulated the uptake of [14C]guanidinium into NG 108-15 cells in the presence of substance P (EC50 = 208 +/- 16 nM) and contracted the isolated guinea-pig ileum (EC50 = 11.2 +/- 1.1 microM), effects that were antagonised by the 5-HT3 receptor antagonist tropisetron. The agonist effect of SR 57227A was also observed in vivo, as the compound elicited the Bezold-Jarisch reflex in anesthetised rats (ED50 = 8.3 micrograms/kg i.v.), an effect that was blocked by tropisetron and R,S-zacopride, but not by methysergide. When injected unilaterally into the mouse striatum, SR 57227A, like 2-methyl-5-HT, elicited contralateral turning behaviour which was antagonised by ondansetron. Furthermore, microiontophoretic application of SR 57227A markedly inhibited the firing rate of rat cortical neurones, an effect antagonised by tropisetron. Finally, in contrast to reference 5-HT3 agonists, SR 57227A bound to 5-HT3 receptors on mouse cortical membranes after systemic administration (ED50 = 0.39 mg/kg i.p. and 0.85 mg/kg p.o.). These results suggest that SR 57227A is a potent agonist at peripheral and central 5-HT3 receptors, both in vitro and in vivo. In view of the dearth of 5-HT3 receptor agonists which are capable of crossing the blood-brain barrier, SR 57227A may be useful in the characterisation of the neuropharmacological effects produced by the stimulation of these receptors.
Collapse
Affiliation(s)
- A Bachy
- Sanofi Recherche, Toulouse, France
| | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Langlois M, Soulier JL, Yang D, Bremont B, Florac C, Rampillon V, Giudice A. Structural analysis of 5-HT3 receptor antagonists: synthesis and pharmacological activity of various aromatic esters or amides derived from tropane and 1,2,6-trisubstituted piperidine. Eur J Med Chem 1993. [DOI: 10.1016/0223-5234(93)90039-h] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
44
|
Langlois M, Soulier J, Brémont B, Shen S, Rampillon V, Giudice A. Derivatives of naphthalimide: new potent conformationally restricted antagonists of 5-HT3 receptors. Bioorg Med Chem Lett 1992. [DOI: 10.1016/s0960-894x(00)80392-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
45
|
Giudice A, Croci T, Bianchetti A, Manara L. Inhibition of rat colonic motility and cardiovascular effects of new gut-specific beta-adrenergic phenylethanolaminotetralines. Life Sci 1989; 44:1411-7. [PMID: 2566103 DOI: 10.1016/0024-3205(89)90399-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have investigated the ability of the new putative beta-adrenergic agonists phenylethanolaminotetralines (PEAT) to inhibit intestinal motility in relation to their cardiovascular effects, in ethylurethane-anesthetized rats. The representative PEAT SR 58375A, SR 58572A and SR 58539B and the reference beta-adrenergic agonists isoproterenol, salbutamol and ritodrine caused dose-related inhibition of proximal colon spontaneous motility: ED50 (microgram/kg, i.v.) 210, 92 and 19; 5.6, 176 and 201, as listed. This inhibition was prevented by the beta-adrenergic antagonist alprenolol, but not by desipramine (which prevented the inhibition of colonic motility by tyramine and enhanced that by norepinephrine). The minimal effective doses (MED) of isoproterenol, salbutamol and ritodrine raising heart rate and/or lowering blood pressure (by 10 to 20%), was substantially lower (about 1/10 to 1/150) than their ED50 for inhibition of colonic motility. The MED raising heart rate of the three PEAT, on the other hand, was about twice (SR 58375A and SR 58572A) to five (SR 58539B) times their ED50 for inhibition of colonic motility. None of the PEAT lowered blood pressure up to the top tested dose. Therefore the PEAT may prove preferable to the currently best tolerated beta-adrenoceptor agonists, because they appear less liable to induce cardiovascular side effects. This supports the prospective therapeutic interest of PEAT for intestinal hypermotility disorders.
Collapse
Affiliation(s)
- A Giudice
- Groupe SANOFI, Research Center MIDY S.p.A. Via Piranesi 38, Milan, Italy
| | | | | | | |
Collapse
|
46
|
Bianchetti A, Dragonetti M, Giudice A, Tarantino A, Ferrarese N, Manara L, Appelmans N, Simon EJ. Relative affinities of the quaternary narcotic antagonist, N-methyl levallorphan (SR 58002), for different types of opioid receptors. Neuropeptides 1985; 5:379-82. [PMID: 2987738 DOI: 10.1016/0143-4179(85)90033-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The relative affinities for different subtypes of opioid receptors (mu, kappa and delta) of the peripheral narcotic antagonist N-methyl levallorphan (SR 58002) have been studied in two in vitro smooth muscle systems (guinea-pig ileum and rabbit vas deferens) and by binding studies (guinea-pig brain and cerebellum membranes) using selective tritiated ligands. All the evidence obtained indicates that SR 58002 is a pure antagonist with relative affinity for mu receptors vs kappa and delta superior to that of the parent tertiary compound, levallorphan.
Collapse
|
47
|
Dragonetti M, Bianchetti A, Sacilotto R, Giudice A, Ferrarese N, Cattaneo C, Manara L. Levallorphan methyl iodide (SR 58002), a potent narcotic antagonist with peripheral selectivity superior to that of other quaternary compounds. Life Sci 1983; 33 Suppl 1:477-80. [PMID: 6664228 DOI: 10.1016/0024-3205(83)90545-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The peripheral selectivity of the newer quaternary narcotic antagonist levallorphan methyl iodide (SR 58002) was found superior in mice to those of the previously available compounds N-allyl levallorphan (CM 32191), N-methyl nalorphine (MNph) and N-methyl naloxone (MNx). SR 58002 and MNph were the most potent (ID50, mg/kg s.c., 3.6 and 3.7) in preventing constipation by s.c. morphine (charcoal meal). Antinociception (hot-plate) of s.c. morphine was completely prevented by MNx, MNph and CM 32191 (ID50, mg/kg s.c., 1.6, 8.6 and 15.2) but only partially antagonized by 30 mg/kg s.c. SR 58002. Constipation elicited centrally by intracerebroventricular (i.c.v.) morphine was prevented by either s.c. MNx or MNph but not by SR 58002 or CM 32191, up to 60 mg/kg.
Collapse
|
48
|
Bianchetti A, Giudice A, Picerno N, Carminati P. Pharmacological actions of levallorphan allyl bromide (CM 32191), a new peripheral narcotic antagonist. Life Sci 1982; 31:2261-4. [PMID: 6186879 DOI: 10.1016/0024-3205(82)90133-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A dissociation of the effects of the newly synthesized quaternary ammonium narcotic antagonist, levallorphan allyl bromide (CM 32191) on morphine-induced analgesia and constipation in the mouse is reported. CM 32191 behaved as a pure morphine antagonist on the "in vitro" preparation of longitudinal muscle of guinea-pig ileum and antagonized dose-dependently the peripherally mediated morphine constipation (ID50:15.6 mg/kg) without significantly affecting morphine analgesia (ID50: greater than 80 mg/kg). Its peripheral selectivity was greater than that of another quaternary ammonium compound, N-methyl naloxone. It is proposed as a useful pharmacological tool to differentiate the peripherally mediated from the centrally mediated effects of opioids.
Collapse
|
49
|
Giudice A. [Solitary ulcer of the rectum]. Chir Ital 1982; 34:262-72. [PMID: 7046972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The Author reports a case of solitary ulcer of the rectum. The most likely pathogenetic hypothesis seems to be linked to hypertonia of the fasciae of the puborectal muscle and the consequent traumatic and ischaemic attacks on the mucosa of the rectal ampulla anterior wall. Diagnosis of solitary ulcer of the rectum is essentially a differential diagnosis versus ulcerated carcinoma and the various inflammatory and infectious ulcerative diseases of the rectum. The rapid evolution of the reported case towards complete cure occurs in only 6% of cases, whereas chronic evolution or the rise of complications is characteristic.
Collapse
|
50
|
Carminati P, Lavezzo A, Manzoni L, Giudice A, Aureggi G, Bianchetti A. [Antiulcer effect of the non-steroidal anti-inflammatory agent, parsalmide, in rats]. Farmaco Prat 1981; 36:58-72. [PMID: 6894284] [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: 01/22/2023]
|