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Donato A, Spadaro D, Giuffrida D, Sabatino G, Di Bella M, Trusso S, Ponterio RC. Monitoring plastic pellet pollution in coastal environments through handheld Raman spectroscopy: Data from the Mediterranean coasts (Southern Italy). Mar Pollut Bull 2024; 202:116312. [PMID: 38579445 DOI: 10.1016/j.marpolbul.2024.116312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 03/27/2024] [Accepted: 03/27/2024] [Indexed: 04/07/2024]
Abstract
This paper examines the distribution and chemical properties of beached plastic pellets along the Ionian and Tyrrhenian coasts of Southern Italy. Three locations have been sampled: Agnone Bagni (SR) and Paradiso (ME) on the Ionian coast of Sicily, Baia del Tono in Milazzo (ME) on the Sicilian Tyrrhenian coast, and Pizzo Calabro (VV) in Calabria on the Tyrrhenian coast. Variations in shape, size, compactness, color, and other physical features, correlated with residence times and transport, has been highlighted. Raman spectroscopy, used in a portable configuration, enabled rapid identification of polymer types, demonstrating its utility for on-site plastic pollutant monitoring. Polyethylene and polypropylene were the predominant polymers. Principal component analysis of the spectra determined the optimal chemometric classification of pellets by composition, avoiding interference or distortion. In conclusion, the study provided preliminary insights into pellet abundance, composition, weathering extent, and distribution across these shorelines, underscoring the importance of regular beach monitoring.
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Affiliation(s)
- Assunta Donato
- Istituto di Geoscienze e Georisorse (IGG), Consiglio Nazionale delle Ricerche, URT Messina, Viale Ferdinando Stagno d'Alcontres, n. 31 -, 98158 Messina, Italy
| | - Donatella Spadaro
- Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, Viale Ferdinando Stagno d'Alcontres, n. 37, - 98158 Messina, Italy
| | - Dario Giuffrida
- Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, Viale Ferdinando Stagno d'Alcontres, n. 37, - 98158 Messina, Italy.
| | - Giuseppe Sabatino
- Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Università degli Studi di Messina, Viale Ferdinando Stagno d'Alcontres, n. 31, - 98158 Messina, Italy; Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Borgo Grotta Gigante, 42/C, - 34010 Sgonico, Italy
| | - Marcella Di Bella
- Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Borgo Grotta Gigante, 42/C, - 34010 Sgonico, Italy
| | - Sebastiano Trusso
- Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, Viale Ferdinando Stagno d'Alcontres, n. 37, - 98158 Messina, Italy
| | - Rosina Celeste Ponterio
- Istituto per i Processi Chimico Fisici, Consiglio Nazionale delle Ricerche, Viale Ferdinando Stagno d'Alcontres, n. 37, - 98158 Messina, Italy
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Abstract
Encephalitis lethargica developed in epidemic from 1919 to 1926 in Europe and throughout the world. From the clinical point of view, the disturbances of consciousness and alertness and the possible outcomes of a postencephalitic Parkinsonism has attracted much attention. For a long time, it was thought that such a disease may still occur sporadically. In this review, the authors examined historical and current pictures of epidemics that may be related to Encephalitis lethargica. The previous Nona and Russian Influenza exhibited frequent neurological symptoms. The Spanish flu, formerly related to Encephalitis lethargica, would appear an epidemic that had its development in a partially overlapping period. The current pandemic linked to COVID-19 sometimes has aspects that can resemble Encephalitis lethargica. Based on historical analysis and the more recent immunological data, it could be suggested that Encephalitis lethargica was an autoimmune encephalitis that arose in a secondary form to the action of a viral agent. It cannot be ruled out that this agent was a coronavirus. From the nosological point of view, the term Encephalitis lethargica should be abolished in designating autoimmune encephalitis pictures that run sporadically.
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Affiliation(s)
- A Di Vito
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Catanzaro, Italy,A Di Vito, Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Viale Europa, Catanzaro 88100, Italy.
| | - A Donato
- Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - J Bria
- Department of Experimental and Clinical Medicine, University Magna Graecia of Catanzaro, Catanzaro, Italy
| | - F Donato
- CeRPS Foundation (Research Center on Psychiatry and Social Sciences), Nocera Inferiore, Italy,Giuda Lab, Department of Mechanical, Energy and Management Engineering, University of Calabria, Arcavacata di Rende, Cosenza
| | - G Donato
- Department of Health Sciences, University Magna Graecia of Catanzaro, Catanzaro, Italy
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Zachariah S, Sullivan A, Donato A. Shingles: a harbinger of chronic HIV infection. J Community Hosp Intern Med Perspect 2021; 11:871-873. [PMID: 34804410 PMCID: PMC8604460 DOI: 10.1080/20009666.2021.1969080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Early diagnosis and treatment are essential to reduce the risk of community transmission and morbidity and mortality of individuals infected with HIV. A 49-year-old woman presented with a painful, vesicular rash on the left side of her neck after being treated with valacyclovir for a separate perianal rash. She admitted recent weight loss and diffuse lymphadenopathy. She reported one family member with HIV but denied intravenous drug use or recently new sexual partners. Serum HIV-1 antibody screen was positive. Herpes zoster reactivation is associated with waning immunity in chronic HIV and should prompt testing. Delays in treatment impacts short-term and long-term prognosis for patients infected with HIV.
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Affiliation(s)
- S Zachariah
- Department of Internal Medicine, Reading Hospital - Tower Health System, West Reading, PA
| | - A Sullivan
- Department of Internal Medicine, Reading Hospital - Tower Health System, West Reading, PA
| | - A Donato
- Department of Internal Medicine, Reading Hospital - Tower Health System, West Reading, PA
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Pais HL, Mansinho A, Branco F, Alvim C, Lobo-Martins S, Fernandes G, Fernandes L, Matos A, Paiva R, Dâmaso S, Brás R, Pinho I, Donato A, Semedo P, Albuquerque J, Ribeiro L. P-65 Locally advanced/metastatic gastric cancer: Real-world data on first-line treatment with oxaliplatin and cisplatin-based doublets. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.147] [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: 10/23/2022] Open
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Gutnisky C, Morado S, Gadze T, Donato A, Alvarez G, Dalvit G, Cetica P. Morphological, biochemical and functional studies to evaluate bovine oocyte vitrification. Theriogenology 2019; 143:18-26. [PMID: 31830686 DOI: 10.1016/j.theriogenology.2019.11.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 04/01/2019] [Revised: 11/26/2019] [Accepted: 11/29/2019] [Indexed: 02/02/2023]
Abstract
The aim of the present study was to evaluate the effect of vitrification on morphological, biochemical and functional parameters of matured bovine oocytes at different recovery times. To this end, matured bovine oocytes were vitrified using the Cryotech® kit (a minimum-volume system) and then incubated in maturation medium for different post-warming durations (0 h, 3 h or 21 h). Morphology, viability and biochemical parameters were assessed at each time point mentioned above and the recovery of the metaphase plate was analyzed at 2 h, 3 h and 4 h post-warming. The vitrification-warming process did not affect the viability or morphology of oocytes at any time point. However, the recovery of the metaphase plate occurred mostly between 3 and 4 h rather than at 2 h after warming (P < 0.05). Both control and vitrified-warmed oocytes showed changes in cytosolic oxidative activity, quantification of active mitochondria, reactive oxygen species (ROS) levels and redox status at the different time points studied (P < 0.05). However, differences between control and vitrified-warmed oocytes were found only in the quantification of active mitochondria and ROS production (P < 0.05). Finally, in vitro fertilization and embryo culture were carried out as functional studies to establish whether vitrification-warming affected oocyte competence, and a significant decrease was found both in the cleavage rate and embryo development (P < 0.05). We concluded that major improvements in oocyte vitrification, at list with Cryotech® kit, are still needed to avoid variations in oocyte metabolism which could contribute to the reduction in the developmental competence of bovine oocytes.
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Affiliation(s)
- C Gutnisky
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal (INITRA), Buenos Aires, Argentina; Unidad Ejecutora de Investigaciones en Producción Animal (INPA, UBA-CONICET), Buenos Aires, Argentina.
| | - S Morado
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal (INITRA), Buenos Aires, Argentina
| | - T Gadze
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal (INITRA), Buenos Aires, Argentina
| | - A Donato
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal (INITRA), Buenos Aires, Argentina
| | - G Alvarez
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal (INITRA), Buenos Aires, Argentina; Unidad Ejecutora de Investigaciones en Producción Animal (INPA, UBA-CONICET), Buenos Aires, Argentina
| | - G Dalvit
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal (INITRA), Buenos Aires, Argentina
| | - P Cetica
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Instituto de Investigación y Tecnología en Reproducción Animal (INITRA), Buenos Aires, Argentina; Unidad Ejecutora de Investigaciones en Producción Animal (INPA, UBA-CONICET), Buenos Aires, Argentina
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Donato A, Siciliano S, Weksler M, Silva D, Carvalho E, Loiola S, Amaral C. Population structure and the conservation status of the rough-toothed dolphins based on the analysis of the mitochondrial control region. Forensic Science International: Genetics Supplement Series 2019. [DOI: 10.1016/j.fsigss.2019.09.103] [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: 10/25/2022]
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Shrestha P, Dhital R, Poudel D, Donato A, Karmacharya P, Craig T. TRENDS IN HOSPITALIZATIONS RELATED TO ANAPHYLAXIS, ANGIOEDEMA AND URTICARIA IN THE UNITED STATES (2001-2014). Ann Allergy Asthma Immunol 2018. [DOI: 10.1016/j.anai.2018.09.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rossi S, Crocetti E, Capocaccia R, Gatta G, Buzzoni C, Giacomin A, Zanetti R, Bisanti L, Tessandori R, Crosignani P, Vercelli M, Mazzoleni G, Piffer S, Zambon P, Serraino D, Ferretti S, Michiara M, Federico M, de Leon MP, Mangone L, Falcini F, Crocetti E, La Rosa F, Vitarelli S, Pannozzo F, Fusco M, Donato A, Traina A, Tumino R, Madeddu A, Contrino M, Budroni M. Estimates of cancer burden in Italy. Tumori 2018; 99:416-24. [DOI: 10.1177/030089161309900318] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aims and background This paper presents updated estimates of the incidence, prevalence and mortality of stomach, colorectal, lung, breast, uterine cervix and prostate cancer and skin melanoma in the Italian population. In particular, point estimates for 2012 and time trends from 1970 to 2015 will be provided. Methods The presented figures were obtained by summing up the regional epidemiological indicator estimates presented in the other papers of this monographic issue, which were derived by applying the MIAMOD statistical back-calculation method to cancer registries survival data and official mortality rates. Results Our findings indicate that breast, colon-rectum and prostate will be the cancer sites with the highest incidence rates in the forthcoming years. The incidence rates still tend to increase for breast, male colorectal cancer and female lung cancer as well as for skin melanoma. By contrast, the incidence of stomach cancer, cervical cancer and male lung cancer, by far the most common tumor sites up to the early 1990s, will continue to decrease. The mortality estimates showed a decreasing trend for all considered cancers with the only exception of lung cancer in women. Conclusion These results point to the need to reinforce prevention activities by developing more effective preventive measures for population groups at risk. There is also a need to support timely and continuous cancer surveillance in the Italian population through cancer registries in order to monitor the spread of the cancer risk and to evaluate the impact of prevention policies and therapeutic advances.
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Affiliation(s)
- Silvia Rossi
- National Center of Epidemiology, Italian National Institute of Health, Rome
| | - Emanuele Crocetti
- Tuscany Cancer Registry, Cancer Prevention and Research Institute (ISPO), Florence
- AIRTUM National Secretary
| | | | - Gemma Gatta
- Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | | | | | - R. Zanetti
- Registro tumori Piemonte, città di Torino
| | | | | | | | - M. Vercelli
- Registro tumori Liguria, Provincia di Genova, UOS Epidemiologia descrittiva, IRCSS AOU SMIST/UNIGE
| | - G. Mazzoleni
- Registro tumori dell'Alto Adige-Tumorregister SüdTirol
| | - S. Piffer
- Registro tumori della Provincia di Trento
| | | | | | | | | | | | | | | | | | - E. Crocetti
- AIRTUM National Secretary, Registro tumori Regione Toscana
| | | | | | | | - M. Fusco
- Registro tumori di popolazione Regione Campania
| | - A. Donato
- Registro tumori della Provincia di Salerno
| | - A. Traina
- Registro tumori della Mammella di Palermo
| | - R. Tumino
- Registro tumori della Provincia di Ragusa
| | | | | | - M. Budroni
- Registro tumori della Provincia di Sassari
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Jalota L, Aryal MR, Mahmood M, Wasser T, Donato A. Interventions to Increase Physician Efficiency and Comfort with an Electronic Health Record System. Methods Inf Med 2018; 54:103-9. [DOI: 10.3414/me14-01-0047] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Accepted: 08/05/2014] [Indexed: 11/09/2022]
Abstract
SummaryObjective: To determine comfort when using the Electronic Health Record (EHR) and increase in documentation efficiency after an educational intervention for physicians to improve their transition to a new EHR.Methods: This study was a single-center randomized, parallel, non-blinded controlled trial of real-time, focused educational interventions by physician peers in addition to usual training in the intervention arm compared with usual training in the control arm. Participants were 44 internal medicine physi cians and residents stratified to groups using a survey of comfort with electronic media during rollout of a system-wide EHR and order entry system. Outcomes were median time to complete a progress note, notes completed after shift, and comfort with EHR at 20 and 40 shifts.Results: In the intervention group, 73 education sessions averaging 14.4 (SD: 7.7) minutes were completed with intervention group participants, who received an average of 3.47 (SD: 2.1) interventions. Intervention group participants decreased their time to complete a progress note more quickly than controls over 30 shifts (p < 0.001) and recorded significantly fewer progress notes after scheduled duty hours (77 versus 292, p < 0.001). Comfort with EHRs increased significantly in both groups from baseline but did not differ significantly by group. Intervention group participants felt that the intervention was more helpful than their standard training (3.47 versus 1.95 on 4-point scale).Conclusion: Physicians teaching physicians during clinical work improved physician efficiency but not comfort with EHRs. More study is needed to determine best methods to assist those most challenged with new EHR rollouts.
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Affiliation(s)
- A. Donato
- Associazione Euratom-ENEA sull/a Fusione Centro Ricerche Frascati, C.P. 65, 00044 Frascati, Rome, Italy
| | - R. Andreani
- Associazione Euratom-ENEA sull/a Fusione Centro Ricerche Frascati, C.P. 65, 00044 Frascati, Rome, Italy
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Renne M, Conforti F, Camastra C, Donato A, Donato G. Macrophage Activation and Patterns of Inflammation in Obese and Non-Obese Women with Breast Carcinoma. EUR J INFLAMM 2014. [DOI: 10.1177/1721727x1401200120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Tumor-associated macrophages (TAMs) with M2 phenotype provide an immunosuppressive microenvironment for tumor growth. In contrast, A great deal of evidence indicates that macrophages in obese patients' adipose tissue undergo a phenotypic change from M2 to Ml polarization accelerating adipose tissue inflammation. Interestingly, obesity is considered a major risk factor for breast cancer. Here, we report a case-control study comparing normal-weight and obese women with breast cancer. Activation states of macrophages and patterns of inflammation associated to breast invasive ductal carcinoma were analyzed by immunohistochemistry. iNOS positive macrophages were counted as a Ml polarized population. Our study demonstrates that classically activated macrophages in obese patients outnumber classically activated macrophages in the breast of non-obese patients with infiltrating ductal carcinoma. However, cancer cell linked factors may strongly antagonize Ml macrophages' positive effects by both stimulating their switching to M2 TAMs and inhibiting their effects.
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Affiliation(s)
- M. Renne
- “Tommaso Campanella” Foundation, Department of Oncologic Surgery, Catanzaro, Italy
| | - F. Conforti
- Chair of Pathology, Department of Health Science, School of Medicine and Surgery, University “Magna Graecia” of Catanzaro, Catanzaro, Italy
| | - C. Camastra
- Chair of Pathology, Department of Health Science, School of Medicine and Surgery, University “Magna Graecia” of Catanzaro, Catanzaro, Italy
| | - A. Donato
- Chair of Pathology, Department of Health Science, School of Medicine and Surgery, University “Magna Graecia” of Catanzaro, Catanzaro, Italy
| | - G. Donato
- Chair of Pathology, Department of Health Science, School of Medicine and Surgery, University “Magna Graecia” of Catanzaro, Catanzaro, Italy
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Bajaj P, Sheerer C, Donato A. Does Presence of Nasal Congestion Influence Patient's Choice of Delivery Interface for Continuous Positive Airway Pressure Therapy? J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Neri G, Arrigo I, Corigliano F, De Luca L, Donato A. Selective Hydrogenation of Cinnamaldehyde on Pt and Pt-Fe Catalysts Supported on Zeolite P. Catal Letters 2011. [DOI: 10.1007/s10562-011-0688-x] [Citation(s) in RCA: 16] [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] [Indexed: 10/17/2022]
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Neri G, Rizzo G, Corigliano F, Arrigo I, Caprì M, De Luca L, Modafferi V, Donato A. A novel Pt/zeolite-based honeycomb catalyst for selective CO oxidation in a H2-rich mixture. Catal Today 2009. [DOI: 10.1016/j.cattod.2009.07.049] [Citation(s) in RCA: 9] [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: 10/20/2022]
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Thapaliya P, Donato A, Curl K. A case-control study examining the role of recent chemotherapy in causing Clostridium difficile infection among cancer patients. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.19563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
19563 Background: Clostridium difficle infection is a major cause of morbidity and mortality in hospitalized patients. The recent use of cancer chemotherapy agents is a frequently cited risk factor but there is a paucity of evidence to this regard. Objective: To determine if an association exists between C. difficile infection requiring hospitalization and recent chemotherapy in patients with cancer. Design: A retrospective case control study. Setting: Community Teaching Hospital Participants: 357 cancer patients admitted with diarrhea or developed diarrhea during their hospital stay that were tested for C. difficile diarrhea via toxin assay over a 2 year period. Outcome Measurements: C. difficile infection using tests for toxin A and or B in stool. Results: Eighty-nine cases had stool positive for C. difficile toxin whereas 267 controls were negative. 30/89 (33%) cases and 90/268 (33%) controls were found to have chemotherapy in the six weeks before collection of stool for toxin assay (Odds Ratio (OR) 1.09, p=1.0 using Pearson Chi square). Factors associated with infection on logistic regression analysis included recent antibiotic usage (OR 1.99, 95% CI 1.01- 3.93),hospitalization in preceding 2 wks with OR 4.1 (95%CI 2.39–7.05) and institutionalization with OR 2.13 (95 % CI 1.03–4.39). Conclusions: C .difficile infection in cancer patients is more likely in recently institutionalized or hospitalized patients who have received recent antibiotics, but not patients with recent chemotherapy. No significant financial relationships to disclose.
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Affiliation(s)
- P. Thapaliya
- The Reading Hospital and Medical Center, West Reading, PA
| | - A. Donato
- The Reading Hospital and Medical Center, West Reading, PA
| | - K. Curl
- The Reading Hospital and Medical Center, West Reading, PA
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Musolino M, Cutrupi C, Donato A, Pietropaolo D, Pietropaolo R. Liquid phase hydrogenation of 2-butyne-1,4-diol and 2-butene-1,4-diol isomers over Pd catalysts: roles of solvent, support and proton on activity and products distribution. ACTA ACUST UNITED AC 2003. [DOI: 10.1016/s1381-1169(02)00547-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [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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De Liguoro M, Amorena M, Naso B, Donato A, Lucisano A. Levels of p,p'-DDE in liver of predatory birds from Calabria, Italy. Bull Environ Contam Toxicol 2002; 68:377-382. [PMID: 11993812 DOI: 10.1007/s001280264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- M De Liguoro
- Institute of Veterinary Pathology and Hygiene, Agripolis, Legnaro, Italy
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Mobilia G, Donato A, Satullo G, Cavallaro L, Buchberger R, Grassi R. Accuracy of low load exercise-induced T wave normalization in predicting the presence of contractile reserve after an anterior myocardial infarction. Prev Cardiol 2002; 3:163-166. [PMID: 11834936 DOI: 10.1111/j.1520-037x.2000.80379.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND METHODS. Exercise-induced T wave normalization occurring at a low (less-than-or-equal50 watt) workload in infarct-related electrocardiographic leads was studied in 30 consecutive patients with a recent transmural anterior acute myocardial infarction. Patients underwent both ergometric stress testing (within 30 days after the infarction) and low dose dobutamine echocardiography. The T wave normalization was considered significant when it occurred in at least two infarct-related leads. A significant contractile reserve was considered present in an infarcted region when 50% or more of the dyskinetic segments functionally improved on exercise during dobutamine infusion. RESULTS. Eighteen patients showed exercise-induced T wave normalization (group 1), and 12 patients did not (group 2). Myocardial contractile reserve in the infarct area was detected in 16 patients of group 1 (88%) and in 3 patients (25%) of group 2 (p=0.004). The overall sensitivity, specificity, and diagnostic accuracy of T wave normalization, as it reflects contractile reserve in the infarct area, were 84%, 82%, and 83%, respectively. CONCLUSION. Low load exercise-induced T wave normalization in infarct-related leads appears to be an accurate marker of residual contractile reserve in the infarct area in patients with recent transmural acute anterior myocardial infarction. (c) 2000 by CHF, Inc.
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Affiliation(s)
- G Mobilia
- Cardiology Department, Hospital of Montebelluna (Treviso), Italy
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Romão Z, Pontes J, Andrade P, Leitão MC, Donato A, Freitas D. [Secondary biliary cirrhosis in a patient with histiocytosis X]. ACTA MEDICA PORT 2002; 15:55-9. [PMID: 12025455] [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: 02/25/2023]
Abstract
Histiocitose X or Histiocytosis of the Langerhans cells represents a complex spectrum of clinical alterations, resulting from infiltration by anomalous histiocytes of various organs, including the skin, bones, lungs, lymphatic ganglia and liver. Liver disease is rare and the mechanism by which lesions appear is unknown. Cholestasis results from phenomena of sclerosant colangitis, which affects the intrahepatic ducts, or from proliferation of histiocytic cells in the periportal areas. Some patients develop biliar cyrrhosis. The authors present the clinical case of a 62-year-old female patient, hospitalized for chronic cholestasis, diabetes and gallstone in the main bile duct. She had metastatic lesions of the hypophysis and bones, the biopsies of which revealed infiltration by histiocytic cells. Endoscopic Retrograde Colangiopancreatography (E.R.C.P.) revealed dilatation of intrahepatic bile ducts and stenosis of left hepatic duct. A histological study of the hepatic biopsy showed chronic cholestasis and areas of fibrosis, without infiltration by histiocytic granulomas, which were observed in the medular biopsy and in the thyroid nodule cytology.
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Affiliation(s)
- Zita Romão
- Serviço de Gastrenterologia, Hospitais da Universidade de Coimbra, Coimbra
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Nunes AC, Amaro P, Maç as F, Cipriano A, Martins I, Rosa A, Pimenta I, Donato A, Freitas D. Fosinopril-induced prolonged cholestatic jaundice and pruritus: first case report. Eur J Gastroenterol Hepatol 2001; 13:279-82. [PMID: 11293449 DOI: 10.1097/00042737-200103000-00011] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
We report a case of fosinopril-induced prolonged cholestatic jaundice and pruritus in a 61-year-old man, with no previous hepatobiliary disease, who presented with asthenia, jaundice and itching 3 weeks after starting fosinopril therapy. Other drugs taken by the patient were not considered probable causes. The diagnostic evaluation showed no biliary obstruction and other possible causes of intra-hepatic cholestasis were excluded. Liver biopsy showed cholestasis without bile duct damage. The disease ran a severe course during the 2 months of hospitalization, with prolonged itching for 6 months, eventually controlled with oral naltrexone. Jaundice subsided after 4 months, with anicteric cholestasis persisting for more than 18 months. Similar occurrences have been reported with other inhibitors of angiotensin-converting enzyme (mostly captopril), but this is the first case of an important adverse reaction to fosinopril.
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Affiliation(s)
- A C Nunes
- Department of Gastroenterology, Coimbra University Hospital, Portugal.
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23
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Sofia C, Portela F, Gregório C, Rosa A, Camacho E, Tomé L, Ferreira M, Andrade P, Cabral P, Romãozinho J, Gouveia H, Leitão M, Pimenta I, Donato A, Freitas D. Endoscopic injection therapy vs. multipolar electrocoagulation vs. laser vs. injection + octreotide vs. injection + omeprazole in the treatment of bleeding peptic ulcers. A prospective randomized study. Hepatogastroenterology 2000; 47:1332-6. [PMID: 11100345] [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: 02/18/2023]
Abstract
BACKGROUND/AIMS A prospective randomized study was performed to assess the effectiveness and safety of 5 different methods of hemostasis in selected patients with high-risk bleeding peptic ulcers. METHODOLOGY Two hundred and eight patients (n = 208; mean age: 61.6 yrs) with endoscopic stigmata of active hemorrhage, non-bleeding vessel or adherent fresh clot were randomized during emergency endoscopy to receive one of the following modalities of endoscopic therapy (with or without pharmacological therapy): I) injection of absolute alcohol (n = 44); II) multipolar electrocoagulation (BICAP; n = 42); III) Nd-YAG laser (n = 40); IV) injection of absolute ethanol + octreotide (n = 42); V) injection of absolute ethanol + omeprazole (n = 40). RESULTS The 5 treatment groups were clinically and endoscopically comparable. The initial hemostatic success was > 90% in every group. No significant differences between groups were found in any of the following parameters assessed during hospitalization: incidence of rebleeding (I = 14.8% vs. II = 19.0% vs. III = 16.6% vs. IV = 18.1% vs. V = 20.0%; P > 0.05 mean = 17.7%); incidence of definitive hemostasis (I = 89.3% vs. II = 85.7% vs. III = 86.6% vs. IV = 84.0% vs. V = 86.6%; P > 0.05; mean = 86.5%); incidence of emergency surgery (I = 8.5% vs. II = 11.9% vs. III = 10.0% vs. IV = 6.8% vs. V = 11.1%; P > 0.05; mean = 9.6%); mortality rate (I = 4.2% vs. II = 4.7% vs. III = 3.3% vs. IV = 13.6% vs. V = 4.4%; P > 0.05; mean = 6.2%). Mean age of deceased patients was significantly higher than living patients (71.2 +/- 13.4 vs. 60.9 +/- 14.4; P < 0.05). Approximately 2/3 of the fatal cases were strongly weakened by coexistent medical diseases. The duration of hospital stay was similar for all groups. The BICAP group required less units of blood transfusion (1.9 +/- 1.8 vs. I = 3.0 +/- 2.6; III = 3.5 +/- 3.6; IV = 2.8 +/- 2.3; V = 3.1 +/- 2.5; P < 0.05), perhaps due to the higher mean value of hemoglobin of these patients at hospital admission, compared to all other groups. No significant complications were reported. CONCLUSIONS This study provides good evidence that injection of absolute ethanol, multipolar electrocoagulation (BICAP) and Nd-YAG laser are equally safe and effective in the endoscopic therapy of acute bleeding peptic ulcers. In contrast, no additional hemostatic benefits arose from the association of pharmacological agents (octreotide or omeprazole) to sclerosis injection.
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Affiliation(s)
- C Sofia
- Department of Gastroenterology, Coimbra University Hospital, Portugal
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24
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Freitas DS, Sofia C, Pontes JM, Gregório C, Cabral JP, Andrade P, Rosa A, Camacho E, Ferreira M, Portela F, Romãozinho JM, Tomé L, Gouveia H, Leitão M, Pimenta I, Donato A. Octreotide in acute bleeding esophageal varices: a prospective randomized study. Hepatogastroenterology 2000; 47:1310-4. [PMID: 11100339] [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: 02/18/2023]
Abstract
BACKGROUND/AIMS To assess the value of octreotide in the control of acute bleeding esophageal varices, in a prospective randomized study. METHODOLOGY One hundred and ninety-seven patients admitted for variceal bleeding confirmed at endoscopy were recruited and divided into two groups: group I (n = 111) with endoscopic stigmata of recent bleeding; and group II (n = 86) with active bleeding at emergency endoscopy. Patients in group I were randomized to receive a continuous infusion of octreotide (n = 58) or emergency sclerotherapy (n = 53). Patients in group II were assigned to sclerotherapy (n = 42) or to sclerotherapy plus octreotide (n = 44). At the end of the period of study (48 hours), patients were submitted to sclerotherapy or band ligation until variceal obliteration was achieved. RESULTS In group I, octreotide was found to be as effective as sclerotherapy regarding hemostasis at 48 hours and on day 7 after the index bleeding episode. Transfusion needs were not significantly different for the two treatment modalities. In group II, the association of octreotide with sclerotherapy was significantly better than sclerotherapy alone either in controlling acute active bleeding (P < 0.001) or in achieving hemostasis at 48 hours (P < 0.01). Transfusion needs were significantly fewer in patients treated with this therapeutic association as compared to sclerotherapy alone. CONCLUSIONS These results suggest that octreotide infusion is effective in the treatment of variceal bleeding. In patients with recent bleeding, octreotide infusion is as effective as emergency sclerotherapy. In active variceal bleeding, it is a valuable adjuvant treatment in association with emergency sclerotherapy.
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Affiliation(s)
- D S Freitas
- Gastroenterology Department, Coimbra University Hospital, Portugal
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25
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Amaro P, Nunes A, Maçôas F, Ministro P, Baranda J, Cipriano A, Martins I, Rosa A, Pimenta I, Donato A, Freitas D. Ticlopidine-induced prolonged cholestasis: a case report. Eur J Gastroenterol Hepatol 1999; 11:673-6. [PMID: 10418941 DOI: 10.1097/00042737-199906000-00015] [Citation(s) in RCA: 19] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
We report a case of ticlopidine-induced prolonged cholestasis in a 60-year-old man with no previous hepatobiliary disease who presented with sudden right upper abdominal pain, jaundice and pruritus three months after starting ticlopidine therapy. Other drugs taken by the patient were not considered probable causes. The diagnostic evaluation showed no biliary obstruction and other possible causes of intra-hepatic cholestasis were excluded. The liver biopsy showed a cholestatic hepatitis with bile duct damage. The disease ran a severe and protracted course, but symptoms and jaundice eventually subsided five months after drug withdrawal. More than a year later, relevant abnormalities of liver function tests consistent with anicteric cholestasis still persist, fulfilling criteria for a minor form of drug-induced prolonged cholestasis. This syndrome has been reported infrequently in relation to several drugs, mainly chlorpromazine, and only once with ticlopidine.
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Affiliation(s)
- P Amaro
- Department of Gastroenterology, Coimbra University Hospital, Portugal
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26
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Romão Z, Pontes J, Lopes H, Vasconcelos H, Portela F, Andrade P, Leitão MC, Donato A, Freitas D. Endosonography in the diagnosis of "blue rubber bleb nevus syndrome": an uncommon cause of gastrointestinal tract bleeding. J Clin Gastroenterol 1999; 28:262-5. [PMID: 10192619 DOI: 10.1097/00004836-199904000-00019] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Blue rubber bleb nevus syndrome is a rare condition characterized by the presence of multiple angiomatic lesions of the skin. These are associated with similar lesions in other organs, namely in the gastrointestinal tract, causing anemia through chronic bleeding. We describe the case of a 72-year-old woman with microcytic anemia. A barium study revealed irregular lacunae in the distal esophagus. A subsequent endoscopy showed blue nodular lesions similar to angiomas of the esophagus and stomach fundus. Endosonography confirmed its angiomatic nature. Exploration of other organs, using magnetic resonance and cranial computed tomography, did not reveal the presence of this type of lesion. In physical examination, two angiomatic lesions were observed on the face and lips, respectively. These were blue in color and compressible, leaving an empty wrinkled sac that rapidly refilled, typical of angiomas.
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Affiliation(s)
- Z Romão
- Department of Gastroenterology, Coimbra University Hospital, Portugal
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27
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Barbaro V, Bartolini P, Bellocci F, Caruso F, Donato A, Gabrielli D, Militello C, Montenero AS, Zecchi P. Electromagnetic interference of digital and analog cellular telephones with implantable cardioverter defibrillators: in vitro and in vivo studies. Pacing Clin Electrophysiol 1999; 22:626-34. [PMID: 10234716 DOI: 10.1111/j.1540-8159.1999.tb00504.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [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] [Indexed: 11/28/2022]
Abstract
The present study examines the potential electromagnetic interference effects induced by cellular telephones on ICDs. We developed ad hoc protocols to conduct both in vitro and in vivo trials on most of the implantable cardioverter defibrillators available on the international market. Trials were conducted with three cellular telephones: two GSM (Global System for Mobile Communication) and one TACS (Total Access Communication System). A human trunk simulator was used to carry out in vitro observations on six ICDs from five manufacturers. In vivo tests were conducted on 13 informed patients with eight different ICD models. During the trials in air, GSM telephones induced interference effects on 4 out of the 6 cardioverter defibrillators tested. Specifically, pulse inhibition, reprogramming, false ventricular fibrillation, and ventricular tachycardia detections occurred, which would have entailed inappropriate therapy delivery had this been activated. Effects were circumscribed to the area closely surrounding the connectors. When the ICD was immersed in saline solution, no effects were observed. Three cases of just ventricular triggering with the interfering signal were observed in vivo.
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Affiliation(s)
- V Barbaro
- Biomedical Engineering Laboratory, Istituto Superiore di Sanità, Rome, Italy
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28
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29
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Salpietro L, Donato A, Baguet F, Mallefet J, Gargano MA, Marino R. Determination by HPLC of adrenalin (E) and of noradrenalin (NE) in certain species of mesopelagic fish in the Strait of Messina. J Biolumin Chemilumin 1998; 13:311-4. [PMID: 9839197 DOI: 10.1002/(sici)1099-1271(1998090)13:5<311::aid-bio494>3.0.co;2-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
The presence of adrenalin (E) and noradrenalin (NE) was found by HPLC both in the photophores and at other tissue levels of numerous species of mesopelagic fish in The Strait of Messina, with the aim of determining the incidence of these catecholamines in photophores, in light transmission and the eventual presence at other tissue levels.
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Affiliation(s)
- L Salpietro
- Department of Animal Biology and Marine Ecology, University of Messina, Italy
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30
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Bastos I, Gomes D, Gregorio C, Baranda J, Gouveia H, Donato A, de Freitas D. An unusual foreign body in the rectum. Hepatogastroenterology 1998; 45:1587-8. [PMID: 9840110] [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: 02/09/2023]
Abstract
This is the report of an unusual foreign body in the rectum which was a complication of the migration of an esophageal Celestin's prosthesis.
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Affiliation(s)
- I Bastos
- Department of Gastroenterology, University Hospital of Coimbra, Portugal
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31
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32
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Souto P, Romãozinho JM, Figueiredo P, Ferreira M, Sousa I, Camacho E, Donato A, Freitas D. Severe acute liver failure as the initial manifestation of haematological malignancy. Eur J Gastroenterol Hepatol 1997; 9:1113-5. [PMID: 9431904 DOI: 10.1097/00042737-199711000-00016] [Citation(s) in RCA: 18] [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: 02/05/2023]
Abstract
Acute liver failure is rarely secondary to lymphoma or leukaemia and it is extremely uncommon as the initial presentation of malignancy. We report a case of a young adult patient with severe acute liver failure referred for liver transplant, in which a Burkitt acute lymphoblastic leukaemia was diagnosed by bone marrow examination. A complete recovery and long remission were obtained with chemotherapy.
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Affiliation(s)
- P Souto
- Department of Gastroenterology, Coimbra University Hospital, Portugal
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33
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34
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Abstract
Lichen planus is a common skin and mucosal disease, with very rare symptomatic oesophageal involvement. We report a case of painful dysphagia due to oesophageal lichen planus in a 60-year-old woman who also had oral, cutaneous and genital lichen planus lesions. Steroid treatment produced considerable improvement of all lesions and a rapid symptomatic remission.
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Affiliation(s)
- P Souto
- Department of Gastroenterology, Coimbra University Hospital, Portugal
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35
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Cruz T, Gaspar R, Donato A, Lopes C. Interaction between polyalkylcyanoacrylate nanoparticles and peritoneal macrophages: MTT metabolism, NBT reduction, and NO production. Pharm Res 1997; 14:73-9. [PMID: 9034224 DOI: 10.1023/a:1012059501947] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE The nature of interactions between macrophages and drug carriers is of primordial importance either in the design of more effective therapeutic strategies for macrophage-associated pathogenesis or in establishing new approaches for pharmacological action avoiding macrophages. METHODS Polyalkylcyanoacrylate nanoparticles (PMCA, PECA, PBCA and PIBCA nanoparticles) were assayed for their toxicity on peritoneal resident and thioglycolate-elicited macrophages. Cellular viability was assessed by MTT tetrazolium salt assay, oxidative burst by NBT reduction and NO production by nitrite evaluation. RESULTS The nanoparticles tested led to cellular morphological modifications and induced toxicity in both types of macrophages in culture. The polyalkylcyanoacrylate nanoparticles uptake by peritoneal macrophages caused an increase in respiratory burst, as assessed by the NBT reduction assay, and induced the release of soluble toxic factors to the culture medium. The association of LPS with the PMCA nanoparticles significantly stimulated the production of nitric oxide (NO) by resident macrophages. In contrast, the association of PBCA nanoparticles with LPS does not increase the nitrite production as compared with LPS alone, which may be due to a different physico-chemical interaction between LPS and the two types of polymers. CONCLUSIONS In cultured mice peritoneal macrophages, nanoparticles of PACA induce the production of oxygen reactive products, which cause changes in the cell metabolism of both resident and elicited macrophages. PMCA nanoparticles in association with LPS significantly increase the expression of the inducible isoform of nitric oxide synthase, leading to the release of large amount of NO, which may be highly cytotoxic to the cultured cells in the presence of peroxide generated from the oxidative burst.
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Affiliation(s)
- T Cruz
- Faculdade de Farmácia and Centro de Neurociências, Universidade de Coimbra, Portugal
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36
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Baranda J, Pontes JM, Portela F, Silveira L, Amaro P, Ministro P, Rosa A, Pimenta I, Andrade P, Bernardes A, Pereira J, Leitão MC, Donato A, de Freitas D. Mesenteric arteriovenous fistula causing portal hypertension and bleeding duodenal varices. Eur J Gastroenterol Hepatol 1996; 8:1223-5. [PMID: 8980945 DOI: 10.1097/00042737-199612000-00017] [Citation(s) in RCA: 13] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
We report a case of portal hypertension associated with a non-traumatic arteriovenous fistula, presenting with bleeding duodenal varices. The patient was admitted for melaena. Emergency endoscopy showed oesophageal varices with no signs of recent bleeding and with no blood in the upper gastrointestinal tract. Arteriography of the coeliac axis and superior mesenteric artery failed to detect any bleeding source. Endoscopy was repeated because of persistent bleeding and revealed active bleeding from varices in the distal duodenum. The patient underwent surgery and a large paraduodenal varicose vein associated with an arteriovenous fistula was found. Resection of the paramural varix and surgical occlusion of the arteriovenous fistula were effective in the control of bleeding. Liver biopsy revealed mild portal fibrosis without cirrhosis. Three years after surgery the patient still has oesophageal varices but has not had recurrent bleeding. There was regression of intraduodenal varices.
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Affiliation(s)
- J Baranda
- Department of Gastroenterology, Coimbra University Hospital, Portugal
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37
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Pontes JM, Leitão MC, Portela F, Andrade P, Lopes H, Vasconcelos H, Romão Z, Pimentel J, Donato A, Freitas D. Gastric ascariasis: a rare cause of upper gastrointestinal bleeding. Endoscopy 1996; 28:792-3. [PMID: 9007448 DOI: 10.1055/s-2007-1005619] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- J M Pontes
- Dept. of Gastroenterology, Coimbra University Hospital, Portugal
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Abstract
The aim of this study was to verify whether there is a public health risk from the interference of analog cellular telephones with pacemakers. We used a human trunk simulator to reproduce an actual implant, and two cellular telephones working with the TACS (Total Access Communication System) standard. Results showed that the electromagnetic field radiated from the analog cellular telephones interfered with a large number of the pacemakers tested (10/25). When the telephone antenna was in close proximity to the pacemaker head, pacemaker desensitizing and sensitizing and pulse inhibition was detected at the moment of an incoming call and throughout ringing. In the worst case of pulse inhibition, the pacemaker skipped three nonconsecutive beats and then resumed its normal pacing, while the desensitizing and sensitizing phenomena persisted as long as the interfering signal was on. Pulse inhibition was also observed when the connection did not succeed. Maximum sensing threshold variation was about 186% (increase) and 62% (decrease) for desensitizing and sensitizing phenomena, respectively. It was also demonstrated that the signal emitted by analog cellular telephones during the crossing of contiguous cells could induce pacemaker pulse inhibition, but under our experimental conditions this event did not seem to pose a risk for the pacemaker patient.
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Affiliation(s)
- V Barbaro
- Laboratorio di Ingegneria Biomedica, Istituto Superiore di Sanità, Roma
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39
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Affiliation(s)
- I Bastos
- Dept. of Gastroenterology, University Hospital of Coimbra, Portugal
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40
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Baranda J, Ministro P, Amaro P, Rosa A, Pimenta I, Donato A, De Freitas D. [Apolipoprotein A1 and biliary lithiasis in hepatic cirrhosis]. ACTA MEDICA PORT 1996; 9:203-6. [PMID: 9005697] [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: 02/03/2023]
Abstract
A prospective study was performed in 67 male patients with cirrhosis, admitted in our Department during one year. Biliary lithiasis was found in 37% of patients. The occurrence of lithiasis was not related to age, weight or severity of liver disease. Seric total bilirubin was higher in lithiasic patients (p < 0.05). Apolipoprotein A1 levels were lower in those ones with lithiasis (p < 0.005). Apolipoprotein A1 was the only factor associated independently with the finding of lithiasis.
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Affiliation(s)
- J Baranda
- Serviço de Gastrenterologia, Hospitais da Universidade de Coimbra (HUC)
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41
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Donato A. Compatibility aspects of the Pb-17Li martensitic steel-H2O system. Fusion Engineering and Design 1996. [DOI: 10.1016/0920-3796(94)00430-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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42
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Abstract
A case of intermittent sinus parasystole in which the parasystolic focus is protected from the dominant sinus rhythm only during the second half of its intrinsic cycle is reported. In addition, a modulating (i.e., electronic) effect is often clearly exerted from the dominant rhythm upon the focus during the protected period. Coexistence of both modulation and intermittency in sinus parasystole, as well as a modulating effect limited to the second part of the parasystolic cycle, have not been previously reported.
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Affiliation(s)
- G Satullo
- Department of Cardiology, Papardo Hospital, Messina, Italy
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43
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Oreto G, Gaita F, Luzza F, Satullo G, Donato A, Calabrò MP, Carerj S, Saporito F, Consolo A, Giannetto M. [Electrocardiogram in pre-excitation]. G Ital Cardiol 1996; 26:303-22. [PMID: 8690186] [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] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- G Oreto
- Cattedra di Cardiologia, Università degli Studi di Messina
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44
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Freitas D, Gouveia H, Sofia C, Cabral JP, Donato A. Endoscopic Nd-YAG laser therapy as palliative treatment for esophageal and cardial cancer. Hepatogastroenterology 1995; 42:633-7. [PMID: 8751226] [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: 02/02/2023]
Abstract
BACKGROUND/AIM Progressive dysphagia is the most important symptom in inoperable cases of carcinoma of the esophagus and cardia. Treatment for the relief of dysphagia is chosen based on the lowest mortality and morbidity. This paper describes alpha consecutive series of patients with esophageal or cardial cancer, without a documented tracheoesophageal fistula, who were referred for palliative laser therapy. Alternative palliative treatments are discussed, as well as factors involved in successful laser treatment. MATERIAL AND METHODS Over a five year period, 104 patients were treated endoscopically with the Nd-YAG laser for symptomatic improvement dysphagia caused by malignant tumors of the esophagus or cardia. RESULTS After the initial laser therapy, good improvement was achieved in 78 patients (75%) and fair improvement in 17 patients (16%). Eighty-three patients with significant improvement were followed until death. In 42 of these 83 patients, the initial laser therapy was the only treatment given; the remaining 41 patients required either additional laser treatment or other palliative therapy. CONCLUSION Laser treatment for palliation in esophageal and cardial cancer is promising. Given the proper circumstances, it may lay the framework for many other important treatment modalities.
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Affiliation(s)
- D Freitas
- Department of Gastroenterology, University Hospital of Coimbra, Portugal
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46
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Barbaro V, Bartolini P, Donato A, Militello C, Altamura G, Ammirati F, Santini M. Do European GSM mobile cellular phones pose a potential risk to pacemaker patients? Pacing Clin Electrophysiol 1995; 18:1218-24. [PMID: 7659575 DOI: 10.1111/j.1540-8159.1995.tb06961.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.3] [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: 01/26/2023]
Abstract
A series of in vivo trials were carried out in order to verify whether the electromagnetic field radiated by GSM (Groupe Systemes Mobiles) mobile cellular phones might affect implanted pacemakers. Two European GSM phones of 2-watt power were tested and trials conducted on 101 pacemaker implanted outpatients attending day hospital for routine check-up, who volunteered for trials. Forty-three pacemaker models from 11 manufacturers were tested in all. When the sensing threshold of the pacemakers was set at a minimum and the antenna of the phone was in direct contact with the patient's chest, interference was detected for 26 implanted pacemakers. Specifically, pulse inhibition in 10 of 101 cases, ventricular triggering in 9 of 46 DDD-VDD pacemakers, and asynchronous pacing in 4 of 52 devices. Pulse inhibition was also observed combined with asynchronous pacing in 1 of 52 cases and with ventricular triggering in 2 of 46 cases. Minimum effect duration was ca. 3 seconds but in 6 cases effects continued as long as the interfering GSM signal was on. No permanent malfunctioning or changes in the programmed parameters were detected. Whenever interference was detected, trials were repeated to determine the maximum sensing threshold at which interference persisted (with the antenna in contact with the skin over the pacemaker). Then maximum distance between antenna and pacemaker at which interference occurred was determined at pacemaker maximum and minimum sensing threshold. Under our experimental conditions electromagnetic interference effects were detected at a maximum distance of 10 cm with the pacemaker programmed at its minimum sensing threshold.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- V Barbaro
- Biomedical Engineering Laboratory, San Filippo Neri Hospital, Rome, Italy
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Satullo G, Donato A, Busà G, Mangano S, Cavallaro L. [The allorhythmic distribution of ectopic ventricular beats. Observations on the electrogenesis and dynamics of concealed ventricular extrasystole]. G Ital Cardiol 1993; 23:887-97. [PMID: 7509762] [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: 01/25/2023]
Abstract
BACKGROUND A regular distribution of ventricular ectopic beats is thought to be a relatively uncommon phenomenon, known as "concealed extrasystole". Several experimental studies suggest that the phenomenon originates from a "protected" ventricular focus. The aim of the present study was to evaluate the 24-hour ECG monitoring incidence of ventricular concealed extrasystole in patients with highly frequent ventricular ectopic beats, looking for signs useful in postulating the electrogenesis of the arrhythmia. METHODS The 24-hour ECGs of 10 patients (pts) with highly frequent ventricular extrasystoles were analysed, searching for significant sequences in the distribution of ectopic beats (i.e., ectopic beats separated by a number of interectopic sinus beats fulfilling one of the formulas of concealed extrasystole). RESULTS Five cases (50%) showed an allorhythmic distribution resulting in a prevalent pattern of concealed bigeminy (2n-1) in 3 cases, and concealed trigeminy (3n-1) in 2 cases. The phenomenon, however, showed a dynamic behaviour, alternating the distributions from patterns of concealed bigeminy to concealed trigeminy or less common patterns, and vice versa. The evidence of the pure ectopic cycle and mathematically related interectopic intervals in 2 cases, the variability of coupling intervals, and the presence of fusion beats in the remaining 3 cases, strongly suggests a parasystolic origin of the phenomenon. CONCLUSIONS The results suggest the following: Concealed extrasystole is a relatively common phenomenon, at least in patients with highly frequent ventricular extrasystoles; the phenomenon, however, is somewhat underestimated due to prevalent quantitative, instead of qualitative, Holter monitoring analyses. Among patients with allorhythmically distributed ventricular extrasystoles, none showed only one pattern of distribution. In fact, each single patient showed two or more patterns throughout the 24-hour recordings. Changes from one pattern to another is governed by several factors, such as sinus heart rate and/or the influence of electrotonic "modulation" upon the ectopic focus. Ventricular extrasystoles with regular allorhythmic distribution show a significantly higher variability of coupling intervals than the others (p = 0.005).
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Affiliation(s)
- G Satullo
- Servizio di Cardiologia con UTIC, USL 41, Ospedale Papardo, Messina
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Cavallaro L, Meo A, Busà G, Coglitore A, Sergi G, Satullo G, Donato A, Calabrò MP, Miceli M. [Arrhythmia in thalassemia major: evaluation of iron chelating therapy by dynamic ECG]. Minerva Cardioangiol 1993; 41:297-301. [PMID: 8233011] [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: 01/29/2023]
Abstract
Arrhythmias and sudden death represent striking features in the natural history of thalassemia major. Antiarrhythmic treatment, however, does not appear to change the clinical course. During recent years the disease's therapeutics approach has undergone a substantial evolution, being more adequate the transfusional regimens as well as more effective the iron chelation therapy through subcutaneous infusion of deferoxamine. The aim of the present study was to determine possible influences exerted by the current treatment upon disease's arrhythmic disorders. Thirty patients of both sexes were enrolled in the study. The age ranged from 9 to 24 years. No congenital or acquired heart diseases were present. Each patient underwent concentrated red cell transfusions (in order to obtain pretransfusional hemoglobin levels of 10-11 g%), and iron-binding therapy through continuous subcutaneous microinjection of deferoxamine 40-50 mg/kg/day (6-8 hours/day, 6 days/week). Patients were divided in 2 groups: the first group (group A) comprising the 16 patients with good therapeutic compliance and regular pharmacological regimen; the second group (Group B) including the remaining poorly compliant 14 patients. The following parameters were analyzed: age, average hemoglobin levels during the last year, total amount of red cell transfusions, ferritin levels, starting age of iron-binding therapy. Moreover, each patient underwent 24-hour ECG Holter monitoring. Age (Group A: 18 +/- 4.6; Group B: 14 +/- 2.7; p < 0.02), total amount of transfusions (Group A: 272 +/- 73; Group B: 211 +/- 44; p < 0.03), and ferritin levels (Group A: 1697 +/- 860; Group B: 2908 +/- 730; p < 0.002) proved to be significantly different in the two groups.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- L Cavallaro
- Servizio di Cardiologia con UTIC, Ospedale Papardo, Messina
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Galvagno S, Milone C, Neri G, Donato A, Pietropaolo R. Hydrogenation of cinnamaldehyde and citral over Ru supported catalysts. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/s0167-2991(08)63316-9] [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: 03/07/2023]
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