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Mateus ARS, Crisafulli C, Cruz Barros S, Pena A, Sanches Silva A. Development and validation of an analytical method based on QuEChERS followed by UHPLC-ToF-MS for the determination of tropane alkaloids in buckwheat ( Fagopyrum esculentum L.) and buckwheat products. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2024:1-16. [PMID: 38635926 DOI: 10.1080/19440049.2024.2339325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 04/01/2024] [Indexed: 04/20/2024]
Abstract
A method was developed for the determination of tropane alkaloids (TAs), including atropine, scopolamine, anisodamine and homatropine in buckwheat and related products. This work presents an optimised methodology based on QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) extraction procedure followed by ultra-high performance liquid chromatography combined with time-of-flight mass spectrometry for the determination of TAs (atropine, scopolamine, anisodamine and homatropine) in buckwheat samples. The analytical methodology was successfully validated, demonstrating good linearity, low limit of quantification, repeatability (RSDr < 15%), inter-day precision (RSDR < 19%) and recovery (74-113%). Finally, 13 commercial samples of buckwheat were analysed and the results demonstrated that they were in compliance with the current European regulations regarding TAs.
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Affiliation(s)
- Ana Rita Soares Mateus
- National Institute of Agrarian and Veterinary Research (INIAV), I.P., Vila do Conde, Portugal
- Pharmacy Faculty, University of Coimbra, Coimbra, Portugal
- LAQV, REQUIMTE, Food Science and Pharmacology Laboratory, Pharmacy Faculty, University of Coimbra, Coimbra, Portugal
- Animal Science Studies Centre (CECA), ICETA, University of Porto, Porto, Portugal
| | - Carmen Crisafulli
- National Institute of Agrarian and Veterinary Research (INIAV), I.P., Vila do Conde, Portugal
| | - Silvia Cruz Barros
- National Institute of Agrarian and Veterinary Research (INIAV), I.P., Vila do Conde, Portugal
| | - Angelina Pena
- Pharmacy Faculty, University of Coimbra, Coimbra, Portugal
- Animal Science Studies Centre (CECA), ICETA, University of Porto, Porto, Portugal
| | - Ana Sanches Silva
- Pharmacy Faculty, University of Coimbra, Coimbra, Portugal
- Animal Science Studies Centre (CECA), ICETA, University of Porto, Porto, Portugal
- Associate Laboratory for Animal and Veterinary Sciences (Al4AnimalS), Lisbon, Portugal
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Mateus ARS, Crisafulli C, Vilhena M, Barros SC, Pena A, Sanches Silva A. The Bright and Dark Sides of Herbal Infusions: Assessment of Antioxidant Capacity and Determination of Tropane Alkaloids. Toxins (Basel) 2023; 15:toxins15040245. [PMID: 37104183 PMCID: PMC10144634 DOI: 10.3390/toxins15040245] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/10/2023] [Accepted: 03/21/2023] [Indexed: 03/29/2023] Open
Abstract
Herbal infusions are highly popular beverages consumed daily due to their health benefits and antioxidant properties. However, the presence of plant toxins, such as tropane alkaloids, constitutes a recent health concern for herbal infusions. This work presents an optimized and validated methodology based on the QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) extraction procedure followed by Ultra-High Performance Liquid Chromatography combined with Time-of-Flight Mass Spectrometry (UHPLC-ToF-MS) for the determination of tropane alkaloids (atropine, scopolamine, anisodamine, and homatropine) in herbal infusions, in accordance with criteria established by Commission Recommendation EU No. 2015/976. One of the seventeen samples was contaminated with atropine, exceeding the current European regulation regarding tropane alkaloids. In addition, this study evaluated the antioxidant capacity of common herbal infusions available on Portuguese markets, indicating the high antioxidant capacity of yerba mate (Ilex paraguariensis), lemon balm (Melissa officinalis), and peppermint (Mentha x piperita).
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Gallizzi R, Crisafulli C, Aversa T, Salzano G, De Luca F, Valenzise M, Zirilli G. Subclinical hypothyroidism in children: is it always subclinical? Ital J Pediatr 2018; 44:25. [PMID: 29454373 PMCID: PMC5816505 DOI: 10.1186/s13052-018-0462-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 02/07/2018] [Indexed: 12/11/2022] Open
Abstract
Aim of this commentary is to report current knowledges on the main clinical and metabolic abnormalities which might be observed in children with longstanding and untreated subclinical hypothyroidism (SH) and to comment the most recent views about natural evolution of thyroid function in the cases with either idiopathic or Hashimoto’s thyroiditis-related SH. On the basis of these preliminary remarks, the essential guidelines for an appropriate and tailored management of SH children are also proposed.
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Affiliation(s)
- R Gallizzi
- UOC Pediatria, Department of Human Pathology of Adulthood and Childhood, University of Messina, via Consolare Valeria, 98125, Messina, Italy
| | - C Crisafulli
- UOC Pediatria, Department of Human Pathology of Adulthood and Childhood, University of Messina, via Consolare Valeria, 98125, Messina, Italy
| | - T Aversa
- UOC Pediatria, Department of Human Pathology of Adulthood and Childhood, University of Messina, via Consolare Valeria, 98125, Messina, Italy
| | - G Salzano
- UOC Pediatria, Department of Human Pathology of Adulthood and Childhood, University of Messina, via Consolare Valeria, 98125, Messina, Italy
| | - F De Luca
- UOC Pediatria, Department of Human Pathology of Adulthood and Childhood, University of Messina, via Consolare Valeria, 98125, Messina, Italy
| | - M Valenzise
- UOC Pediatria, Department of Human Pathology of Adulthood and Childhood, University of Messina, via Consolare Valeria, 98125, Messina, Italy.
| | - G Zirilli
- UOC Pediatria, Department of Human Pathology of Adulthood and Childhood, University of Messina, via Consolare Valeria, 98125, Messina, Italy
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Fabbri C, Crisafulli C, Gurwitz D, Stingl J, Calati R, Albani D, Forloni G, Calabrò M, Martines R, Kasper S, Zohar J, Juven-Wetzler A, Souery D, Montgomery S, Mendlewicz J, Girolamo GD, Serretti A. Neuronal cell adhesion genes and antidepressant response in three independent samples. Pharmacogenomics J 2015; 15:538-48. [PMID: 25850031 DOI: 10.1038/tpj.2015.15] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 02/03/2015] [Accepted: 02/09/2015] [Indexed: 12/19/2022]
Abstract
Drug-effect phenotypes in human lymphoblastoid cell lines recently allowed to identify CHL1 (cell adhesion molecule with homology to L1CAM), GAP43 (growth-associated protein 43) and ITGB3 (integrin beta 3) as new candidates for involvement in the antidepressant effect. CHL1 and ITGB3 code for adhesion molecules, while GAP43 codes for a neuron-specific cytosolic protein expressed in neuronal growth cones; all the three gene products are involved in synaptic plasticity. Sixteen polymorphisms in these genes were genotyped in two samples (n=369 and 90) with diagnosis of major depressive episode who were treated with antidepressants in a naturalistic setting. Phenotypes were response, remission and treatment-resistant depression. Logistic regression including appropriate covariates was performed. Genes associated with outcomes were investigated in the Sequenced Treatment Alternatives to Relieve Depression (STAR*D) genome-wide study (n=1861) as both individual genes and through a pathway analysis (Reactome and String databases). Gene-based analysis suggested CHL1 rs4003413, GAP43 rs283393 and rs9860828, ITGB3 rs3809865 as the top candidates due to their replication across the largest original sample and the STAR*D cohort. GAP43 molecular pathway was associated with both response and remission in the STAR*D, with ELAVL4 representing the gene with the highest percentage of single nucleotide polymorphisms (SNPs) associated with outcomes. Other promising genes emerging from the pathway analysis were ITGB1 and NRP1. The present study was the first to analyze cell adhesion genes and their molecular pathways in antidepressant response. Genes and biomarkers involved in neuronal adhesion should be considered by further studies aimed to identify predictors of antidepressant response.
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Affiliation(s)
- C Fabbri
- Department of Biomedical and NeuroMotor Sciences, University of Bologna, Bologna, Italy
| | - C Crisafulli
- Department of Biomedical Science and Morphological and Functional Images, University of Messina, Messina, Italy
| | - D Gurwitz
- Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Italy
| | - J Stingl
- Federal Institute for Drugs and Medical Devices, University Bonn Medical School, Bonn, Germany
| | - R Calati
- Faculty Centre for Translational Medicine, University Bonn, Medical Faculty, Bonn, Germany
| | - D Albani
- Laboratory of Biology of Neurodegenerative Disorders, Department of Neuroscience, IRCCS Istituto di Ricerche Farmacologiche 'Mario Negri', Milan, Italy
| | - G Forloni
- Laboratory of Biology of Neurodegenerative Disorders, Department of Neuroscience, IRCCS Istituto di Ricerche Farmacologiche 'Mario Negri', Milan, Italy
| | - M Calabrò
- Department of Biomedical Science and Morphological and Functional Images, University of Messina, Messina, Italy.,Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - R Martines
- Department of Biomedical and NeuroMotor Sciences, University of Bologna, Bologna, Italy.,Laboratory of Biology of Neurodegenerative Disorders, Department of Neuroscience, IRCCS Istituto di Ricerche Farmacologiche 'Mario Negri', Milan, Italy
| | - S Kasper
- Department of Psychiatry and Psychotherapy, Medical University Vienna, Vienna, Austria
| | - J Zohar
- Department of Psychiatry, Sheba Medical Center, Tel Hashomer and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - A Juven-Wetzler
- Department of Psychiatry, Sheba Medical Center, Tel Hashomer and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - D Souery
- Laboratoire de Psychologie Medicale, Universitè Libre de Bruxelles and Psy Pluriel, Centre Européen de Psychologie Medicale, Brussels, Belgium
| | | | - J Mendlewicz
- Université Libre de Bruxelles, Brussels, Belgium
| | - G D Girolamo
- Faculty Centre for Translational Medicine, University Bonn, Medical Faculty, Bonn, Germany
| | - A Serretti
- Department of Biomedical and NeuroMotor Sciences, University of Bologna, Bologna, Italy
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Colonna M, Crisafulli C, Stagno d’Alcontres F, Risitano G. Isolated fracture of the capitate with rotation of the proximal fragment. Case report. ACTA ACUST UNITED AC 2013; 32:189-91. [DOI: 10.1016/j.main.2013.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2012] [Revised: 04/18/2013] [Accepted: 04/18/2013] [Indexed: 10/26/2022]
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Caruso RA, Rigoli L, Parisi A, Fedele F, Bonanno A, Paparo D, Querci A, Crisafulli C, Branca G, Venuti A. Neutrophil-rich Gastric Carcinomas: Light and Electron Microscopic Study of 9 Cases with Particular Reference to Neutrophil Apoptosis. Ultrastruct Pathol 2013; 37:164-70. [DOI: 10.3109/01913123.2013.768746] [Citation(s) in RCA: 6] [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: 12/14/2022]
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Crisafulli C, Drago A, Sidoti A, Serretti A. A genetic dissection of antipsychotic induced movement disorders. Curr Med Chem 2013; 20:312-330. [PMID: 23157623] [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] [Received: 07/06/2012] [Revised: 09/06/2012] [Accepted: 09/27/2012] [Indexed: 06/01/2023]
Abstract
BACKGROUND Antipsychotic medications (APM) are the first line pharmacological treatment for psychotic disorders and other behavioral disorders. Nevertheless, their use causes a number of side effects, including extrapyramidal symptoms (EPS). EPS decrease the efficacy of the antipsychotic treatments by causing poorer compliance to the treatment, stigma and a poorer quality of life for patients. Genetic studies hold the potential to unravel the molecular underpinnings of the EPS induced by APM but results are not conclusive and are far to be used in clinical practice despite decades of research. A more sophisticated selection of the list of genetic mutations explaining the genetic variance of EPS induced by APM could help in the definition of a personalized treatments for patients. Moreover, it would increase the quality of the current treatments with APM. METHODS We reviewed the literature searching for the genetic association studies focused on dystonia, parkinsonism, akathisia and tardive dyskinesia. Moreover, we reviewed the current biological knowledge of the APM induced side effects. Finally, we provide a reasoned list of candidate genes and their genetic variations, with the aim of identifying a list of candidates for APM induced EPS genetic investigations. RESULTS Variations located within PIK3CA (phosphoinositide-3- kinase, catalytic, alpha polypeptide), PLA2G4A (phospholipase A2, group IVA, cytosolic, calcium-dependent), PRKCA (protein kinase C, alpha), PRKACG (Phosphatidylinositol-4,5-bisphosphate 3-kinase 110 kDa catalytic subunit gamma), ERK-1 (extracellular signalregulated kinase 1 (MAPK3)), ERK-2 (extracellular signal-regulated kinase 2 (MAPK1)), GNAS (guanine nucleotide binding protein (G protein), alpha stimulating activity polypeptide 1), PLCB1 (phospholipase C, beta 1 (phosphoinositide-specific)) and ITPR1 (inositol 1,4,5-triphosphate receptor type 1) were found to be relevant for APM induced EPS. Some of the genes are classical candidates for this kind of research, others were never investigated. For each of these genes we provide a list of variations that balances the limitations of multitesting with the advantages of the tagging approach. CONCLUSIONS We undertook a review of the literature about the APM induced EPM to provide some rational genetic candidates to be tested in further genetic investigations.
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Affiliation(s)
- C Crisafulli
- Department of Biomorphology and Biotechnologies, Division of Biology and Genetics, University of Messina, Italy
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Scirè S, Giuffrida S, Crisafulli C, Riccobene P, Pistone A. Liquid phase photo-deposition in the presence of unmodified β-cyclodextrin: A new approach for the preparation of supported Pd catalysts. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2011.11.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [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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Scirè S, Crisafulli C, Giuffrida S, Ventimiglia G, Bongiorno C, Spinella C. Preparation of ceria and titania supported Pt catalysts through liquid phase photo-deposition. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcata.2010.10.003] [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: 11/27/2022]
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Di Paola R, Crisafulli C, Mazzon E, Genovese T, Paterniti I, Bramanti P, Cuzzocrea S. Effect of PD98059, a selective MAPK3/MAPK1 inhibitor, on acute lung injury in mice. Int J Immunopathol Pharmacol 2010; 22:937-50. [PMID: 20074457 DOI: 10.1177/039463200902200409] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The aim of the present study is to evaluate the contribution of mitogen-activated protein kinase 1-3 MAPK3/MAPK1) in a model of acute lung inflammation in mice. Injection of carrageenan into the pleural cavity of mice elicited an acute inflammatory response characterized by: accumulation of fluid containing a large number of neutrophils (PMNs) in the pleural cavity, infiltration of PMNs in lung tissues and subsequent adhesion molecule expression (I-CAM and P-selectin), lipid peroxidation, and increased production of tumour necrosis factor-alpha, (TNF-alpha) and interleukin-1beta (IL-1beta). Furthermore, carrageenan induced lung apoptosis (Bax and Bcl-2 expression) as well as nitrotyrosine formation, NF-kB activation, and pJNK expression, as determined by immunohistochemical analysis of lung tissues and the degree of lung inflammation and tissue injury (histological score). Administration of PD98059, an inhibitor of MAPK3/MAPK1 (10 mg/kg) 1 h after carrageenan caused a reduction in all the parameters of inflammation measured. Thus, based on these findings we propose that inhibitors of the MAPK3/MAPK1 signaling pathways, such as PD98059, may be useful in the treatment of various inflammatory diseases.
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Affiliation(s)
- R Di Paola
- IRCCS Centro Neurolesi Bonino-Pulejo, Messina, Italy
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Caruso RA, Basile G, Crisafulli C, Pizzi G, Finocchiaro G, Fedele F, Paparo D, Parisi A. Granulomatous inflammatory reaction in human gastric adenocarcinomas: a light and electron microscopy study. Ultrastruct Pathol 2009; 33:269-73. [PMID: 19929174 DOI: 10.3109/01913120903348845] [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: 11/13/2022]
Abstract
Granuloma is a focal, compact collection of inflammatory cells in which mononuclear phagocytes predominate. The authors report 9 cases of papillary-tubular gastric adenocarcinomas characterized by mature granulomas associated with recent microhemorrhages. Mature granulomas were composed of foamy, CD68-positive histiocytes with occasional giant cells. Hemosiderin-containing macrophages were present in the tumor stroma, suggesting phagocytosis of erythrocytes. Under electron microscopy, mature (nonepithelioid) granulomas and clusters containing 1 macrophage and 1-3 eosinophils were found. This study provides morphological examples of skewed type II macrophage infiltration in gastric adenocarcinomas that is involved in scavenging activity, particularly erythrophagocytosis, formation of mature (nonepithelioid granulomas), and heterotypic aggregation with eosinophils.
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Affiliation(s)
- R A Caruso
- Dipartimento di Patologia Umana, Policlinico Universitario, Messina, Italy.
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Mazzon E, Esposito E, Di Paola R, Muià C, Crisafulli C, Genovese T, Caminiti R, Meli R, Bramanti P, Cuzzocrea S. Effect of tumour necrosis factor-alpha receptor 1 genetic deletion on carrageenan-induced acute inflammation: a comparison with etanercept. Clin Exp Immunol 2008; 153:136-49. [PMID: 18505433 DOI: 10.1111/j.1365-2249.2008.03669.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
In the present study, we used tumour necrosis factor-alpha receptor 1 knock-out mice (TNF-alphaR1KO) to evaluate an in vivo role of TNF-alphaR1 on the pathogenesis of inflammatory diseases. We used a murine model of carrageenan-induced acute inflammation (pleurisy), a preclinical model of airway inflammation. The data proved that TNF-alphaR1KO were resistant to carrageenan-induced acute inflammation compared with TNF-alpha wild-type mice. TNF-alphaR1KO showed a significant reduction in accumulation of pleural exudate and in the number of inflammatory cells, in lung infiltration of polymorphonuclear leucocytes and lipid peroxidation and showed a decreased production of nitrite/nitrate in pleural exudates. Furthermore, the intensity and degree of the adhesion molecule intercellular adhesion molecule-1 and P-selectin, Fas ligand (FasL), inducible nitric oxide sythase and nitrotyrosine determined by immunohistochemical analysis were reduced markedly in lung tissues from TNF-alphaR1KO at 4 h and 24 h after carrageenan injection. Moreover, TNF-alpha and interleukin-1beta concentrations were reduced in inflamed areas and in pleural exudates from TNF-alphaR1KO. To support the results generated using pleural inflammation, carrageenan-induced paw oedema models were also performed. In order to elucidate whether the observed anti-inflammatory effects were related to the inhibition of TNF-alpha, we also investigated the effect of etanercept, a TNF-alpha soluble receptor construct, on carrageenan-induced pleurisy. The treatment with etanercept (5 mg/kg subcutaneously 2 h before the carrageenan injection) reduces markedly both laboratory and histological signs of carrageenan-induced pleurisy. Our results showed that administration of etanercept resulted in the same outcome as that of deletion of the TNF-alphaR1 receptor, adding a new insight to TNF-alpha as an excellent target by therapeutic applications.
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Affiliation(s)
- E Mazzon
- Department of Clinical and Experimental Medicine and Pharmacology, School of Medicine, University of Messina, Messina, Italy
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Fazzari C, Fedele F, Pizzi G, Crisafulli C, Parisi A, Caruso RA. Krukenberg tumour of the ovary: a case report with light microscopy, immunohistochemistry and electron microscopy study. Anticancer Res 2008; 28:1417-1420. [PMID: 18505089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A rare case of a 46-year-old woman with bilateral Krukenberg tumours is reported. Histologically, oedematous ovarian stroma was infiltrated by signet-ring cells arranged singly, in cords or in nests. Immunoreactivity for cytokeratin-7, carcinoembryonic antigen as well as histochemical positivity for mucins demonstrated the epithelial nature of the tumour. The gastric primary site was suggested by the cytoplasmic immunoreactivity for MUC-5AC and by ultrastructural evidence of gastric differentiation in signet-ring cells such as mucous granules with eccentric dense cores and intracellular microcysts, lined by sparse microvilli. Gastric biopsy, performed after pathological diagnosis, revealed a signet-ring cell carcinoma similar to that in the ovaries, confirming the gastric origin of the Krukenberg tumour. Because none of the individual immunohistochemical markers used for tissue identification is both site specific and site sensitive, electron microscopy in combination with immunohistochemistry is a valuable tool for the pathologist in the diagnosis of the tissue origin of a Krukenberg tumour.
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Affiliation(s)
- C Fazzari
- Dipartimento di Patologia Umana, Policlinico Universitario, Messina, Italy
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Genovese T, Mazzon E, Crisafulli C, Esposito E, Di Paola R, Muià C, Di Bella P, Meli R, Bramanti P, Cuzzocrea S. Combination of dexamethasone and etanercept reduces secondary damage in experimental spinal cord trauma. Neuroscience 2007; 150:168-81. [PMID: 17945432 DOI: 10.1016/j.neuroscience.2007.06.059] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Revised: 06/11/2007] [Accepted: 07/20/2007] [Indexed: 10/23/2022]
Abstract
The aim of our study was to evaluate the therapeutic efficacy of combination therapy with etanercept and dexamethasone (DEX) in vivo in experimental murine model of spinal cord trauma, which was induced by the application of vascular clips (force of 24 g) to the dura via a four-level T5-T8 laminectomy. Spinal cord injury in mice resulted in severe trauma characterized by edema, neutrophil infiltration, and cytokine production followed by recruitment of other inflammatory cells, production of inflammation mediators, tissue damage, apoptosis and disease. Treatment of the mice with etanercept (1.25 mg/kg) and DEX (0.025 mg/kg) when administered as a combination therapy but not as a single treatment significantly reduced the degree of (1) spinal cord inflammation and tissue injury (histological score), (2) infiltration of neutrophils (MPO evaluation), (3) inducible nitric oxide synthase, nitrotyrosine, and cytokines expression (tumor necrosis factor-alpha and interleukin-1 beta), (4) and apoptosis (Terminal deoxynucleotidyltransferase-mediated UTP end labeling staining, Fas-ligand expression and Bax and Bcl-2 expression). In a separate set of experiments we have also clearly demonstrated that the combination therapy significantly ameliorated the recovery of limb function (evaluated by motor recovery score). Taken together, our results clearly demonstrate for the first time that strategies targeting multiple proinflammatory pathways may be more effective than a single effector molecule for the treatment of spinal cord trauma.
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Affiliation(s)
- T Genovese
- Department of Clinical and Experimental Medicine and Pharmacology, School of Medicine, University of Messina, Torre Biologica, Policlinico Universitario Via C. Valeria, Gazzi, 98100 Messina, Italy
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Milone C, Crisafulli C, Ingoglia R, Schipilliti L, Galvagno S. A comparative study on the selective hydrogenation of α,β unsaturated aldehyde and ketone to unsaturated alcohols on Au supported catalysts. Catal Today 2007. [DOI: 10.1016/j.cattod.2007.01.011] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Di Paola R, Mazzon E, Muià C, Crisafulli C, Terrana D, Greco S, Britti D, Santori D, Oteri G, Cordasco G, Cuzzocrea S. Effects of etanercept, a tumour necrosis factor-alpha antagonist, in an experimental model of periodontitis in rats. Br J Pharmacol 2007; 150:286-97. [PMID: 17200677 PMCID: PMC2013896 DOI: 10.1038/sj.bjp.0706979] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND AND PURPOSE Etanercept is a tumour necrosis factor antagonist with anti-inflammatory effects. The aim of our study was to evaluate, for the first time, the therapeutic efficacy of in vivo inhibition of TNF-alpha in an experimental model of periodontitis. EXPERIMENTAL APPROACH Periodontitis was induced in adult male Sprague-Dawley rats by placing a nylon thread ligature around the lower 1st molars. Etanercept was administered at a dose of 5 mg kg-1, s.c., after placement of the ligature. KEY RESULTS Periodontitis in rats resulted in an inflammatory process characterized by oedema, neutrophil infiltration and cytokine production that was followed by the recruitment of other inflammatory cells, production of a range of inflammatory mediators, tissue damage, apoptosis and disease. Treatment of the rats with etanercept (5 mg kg-1, s.c., after placement of the ligature) significantly reduced the degree of (1) periodontitis inflammation and tissue injury (histological score), (2) infiltration of neutrophils (MPO evaluation), (3) iNOS (the expression of nitrotyrosine and cytokines (eg TNF-alpha)) and (4) apoptosis (Bax and Bcl-2 expression). CONCLUSIONS AND IMPLICATIONS Taken together, our results clearly demonstrate that treatment with etanercept reduces the development of inflammation and tissue injury, events associated with periodontitis.
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Affiliation(s)
- R Di Paola
- Department of Clinical and Experimental Medicine and Pharmacology, Torre Biologica, Policlinico Universitario Messina, Italy
- IRCCS Centro Neurolesi ‘Bonino-Pulejo' Messina, Italy
| | - E Mazzon
- Department of Clinical and Experimental Medicine and Pharmacology, Torre Biologica, Policlinico Universitario Messina, Italy
- IRCCS Centro Neurolesi ‘Bonino-Pulejo' Messina, Italy
| | - C Muià
- Department of Clinical and Experimental Medicine and Pharmacology, Torre Biologica, Policlinico Universitario Messina, Italy
| | - C Crisafulli
- Department of Clinical and Experimental Medicine and Pharmacology, Torre Biologica, Policlinico Universitario Messina, Italy
| | - D Terrana
- Department of Clinical and Experimental Medicine and Pharmacology, Torre Biologica, Policlinico Universitario Messina, Italy
| | - S Greco
- Department of Clinical and Experimental Medicine and Pharmacology, Torre Biologica, Policlinico Universitario Messina, Italy
| | - D Britti
- Università della Magna Græcia di Catanzaro (UMG) Catanzaro, Italy
| | - D Santori
- Dipartimento di Scienze Cliniche Veterinarie, Università degli Studi di Teramo viale Crispi, Teramo, Italy
| | - G Oteri
- Istituto Policattedra di Odontostomatologia Universita degli Studi di Messina Messina, Italia
| | - G Cordasco
- Istituto Policattedra di Odontostomatologia Universita degli Studi di Messina Messina, Italia
| | - S Cuzzocrea
- Department of Clinical and Experimental Medicine and Pharmacology, Torre Biologica, Policlinico Universitario Messina, Italy
- IRCCS Centro Neurolesi ‘Bonino-Pulejo' Messina, Italy
- Author for correspondence:
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Caruso RA, Basile F, Fedele F, Zuccalà V, Crisafulli C, Fracassi MG, Quattrocchi E, Venuti A, Fabiano V. Gastric hepatoid adenocarcinoma with autophagy-related necrosis-like tumor cell death: report of a case. Ultrastruct Pathol 2006; 30:301-7. [PMID: 16971355 DOI: 10.1080/01913120600820575] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A case of hepatoid adenocarcinoma of the stomach is presented. The characteristic features of the tumor are summarized on the basis of the authors' experience and the literature. Ultrastructural examination revealed patchy condensations of chromatin throughout the nucleus suggestive of necrosis-like programmed cell death (PCD). These nuclear alterations were associated with the occurrence of vacuoles and lipofuscins, conferring an autophagic phenotype to this PCD. Thus, the case reported here provides an example of autophagic-related necrosis-like PCD. Alternative PCDs are reviewed and their morphologic distinction is discussed.
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Affiliation(s)
- R A Caruso
- Departimento di Patologia Umana, Policlinico Universitario, Messina, Italy.
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20
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Caruso RA, Basile F, Fedele F, Zuccalà V, Crisafulli C, Fracassi MG, Quattrocchi E, Venuti A, Fabiano V. Gastric hepatoid adenocarcinoma with autophagy-related necrosis-like tumor cell death: report of a case. Ultrastruct Pathol 2006. [PMID: 16971355 DOI: 10.1080/01913120600820575.] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/30/2022]
Abstract
A case of hepatoid adenocarcinoma of the stomach is presented. The characteristic features of the tumor are summarized on the basis of the authors' experience and the literature. Ultrastructural examination revealed patchy condensations of chromatin throughout the nucleus suggestive of necrosis-like programmed cell death (PCD). These nuclear alterations were associated with the occurrence of vacuoles and lipofuscins, conferring an autophagic phenotype to this PCD. Thus, the case reported here provides an example of autophagic-related necrosis-like PCD. Alternative PCDs are reviewed and their morphologic distinction is discussed.
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Affiliation(s)
- R A Caruso
- Departimento di Patologia Umana, Policlinico Universitario, Messina, Italy.
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21
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Cuzzocrea S, Crisafulli C, Mazzon E, Esposito E, Muià C, Abdelrahman M, Di Paola R, Thiemermann C. Inhibition of glycogen synthase kinase-3beta attenuates the development of carrageenan-induced lung injury in mice. Br J Pharmacol 2006; 149:687-702. [PMID: 17016509 PMCID: PMC2014652 DOI: 10.1038/sj.bjp.0706902] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [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: 12/13/2022] Open
Abstract
BACKGROUND AND PURPOSE Glycogen synthase kinase-3 (GSK-3) is a ubiquitous serine-threonine protein kinase that participates in a multitude of cellular processes and has recently been implicated in the pathophysiology of a number of diseases. The aim of this study was to investigate the effects of GSK-3beta inhibition in a model of acute inflammation. Here, we have investigated the effects of TDZD-8, a potent and selective GSK-3beta inhibitor, in a mouse model of carrageenan-induced pleurisy. EXPERIMENTAL APPROACH Injection of carrageenan into the pleural cavity of mice elicited an acute inflammatory response characterized by: accumulation of fluid containing a large number of neutrophils (PMNs) in the pleural cavity, infiltration of PMNs in lung tissues and subsequent lipid peroxidation, and increased production of nitrite/nitrate (NOx), prostaglandin E2 (PGE2), tumour necrosis factor-alpha, (TNF-alpha) and interleukin-1beta (IL-1beta). Furthermore, carrageenan induced an upregulation of the adhesion molecules ICAM-1 and P-selectin, iNOS, COX-2 as well as nitrotyrosine as determined by immunohistochemical analysis of lung tissues. KEY RESULTS Administration of TDZD-8 (1, 3 or 10 mg kg(-1), i.p.), 30 min prior to injection of carrageenan, caused a dose-dependent reduction in all the parameters of inflammation measured. CONCLUSIONS AND IMPLICATIONS Thus, based on these findings we propose that inhibitors of the activity of GSK-3beta, such as TDZD-8, may be useful in the treatment of various inflammatory diseases.
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Affiliation(s)
- S Cuzzocrea
- Department of Clinical and Experimental Medicine and Pharmacology, School of Medicine, University of Messina, Messina, Italy.
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22
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Calapai G, Crupi A, Firenzuoli F, Marciano MC, Squadrito F, Inferrera G, Parisi A, Rizzo A, Crisafulli C, Fiore A, Caputi AP. Neuroprotective effects of Ginkgo biloba extract in brain ischemia are mediated by inhibition of nitric oxide synthesis. Life Sci 2000; 67:2673-83. [PMID: 11105983 DOI: 10.1016/s0024-3205(00)00858-4] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
We studied the effects of pre-treatment (15 days) with oral administration of Ginkgo biloba extract (Ph-Gb 37.5-150 mg/kg) on brain malonildialdehyde (MDA), brain edema, brain nitrite and nitrate and delayed neuronal death following transient cerebral ischemia in the Mongolian gerbil. Survival was not modified, however, pre-treatment with Ginkgo biloba significantly and in a dose-dependent way reduced post-ischemic brain MDA levels and post-ischemic brain edema. Delayed neuronal death in the CA1 of the hippocampus was attenuated by the highest dose of the extract. Increase of nitrite and nitrate was observed after cerebral ischemia in the hippocampus and it was dose-dependently reduced in animals pretreated with Ph-Gb, thus suggesting that neuroprotective effects of Ginkgo biloba may be due to an inhibitory action on nitric oxide formation.
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Affiliation(s)
- G Calapai
- Institute of Pharmacology, School of Medicine, Torre Biologica Policlinico Universitario, Messina, Italy.
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Tuccari G, Giuffrè G, Crisafulli C, Barresi G. Immunohistochemical detection of lactoferrin in human astrocytomas and multiforme glioblastomas. Eur J Histochem 2000; 43:317-22. [PMID: 10682270] [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: 02/15/2023] Open
Abstract
The presence of lactoferrin in astrocytomas, anaplastic astrocytomas and multiforme glioblastomas was determined by immunohistochemistry; the staining intensity and the percentage of neoplastic stained cells were graded and statistical analysis was performed by non-parametric methods. A moderate to strong diffuse immunoreactivity for lactoferrin was shown in glial elements of astrocytomas, while the positivity was progressively reduced in anaplastic astrocytomas and in multiforme glioblastomas, some of which were unstained; a highly significant difference was found between scores relative to astrocytomas and glioblastomas. We suggest that the lactoferrin may be produced by neoplastic astrocytes which permits a greater availability of iron for metabolic cellular processes. Alternatively, the cytoplasmic localization of lactoferrin in neoplastic astrocytes may be the consequence of defective or functionally impaired lactoferrin receptors at the cellular surface.
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Affiliation(s)
- G Tuccari
- Dept. of Human Pathology, University of Messina, Italy.
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Tuccari G, Giuffrè G, Crisafulli C, Monici MC, Toscano A, Vita G. Quantitation of argyrophilic nucleolar organizer regions in regenerating muscle fibers in Duchenne and Becker muscular dystrophies and polymyositis. Acta Neuropathol 1999; 97:247-52. [PMID: 10090671 DOI: 10.1007/s004010050981] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
We have investigated the quantity of argyrophilic nucleolar organizer region (AgNOR) proteins in vastus lateralis muscle samples from 13 patients with Duchenne muscular dystrophy (DMD) (6 months-12 years), 9 with Becker muscular dystrophy (BMD) (13 months-36 years), 9 with polymyositis (PM) (8-77 years) and 10 normal subjects (5 months-32 years). AgNORs were visualized on 4-microm-thick cryostat sections and quantified according to the guidelines of the Committee on AgNOR Quantitation; statistical analysis was performed on the mean AgNOR area (NORA) values. The mean NORA values encountered in DMD (4.327+/-0.791 microm2), BMD (3.534+/-0.312 microm2) and PM (3.785+/-0.424 microm2) samples were significantly (P<0.001) higher than those of normal muscle (1.682+/-0.288 microm2); a value of P<0.001 was also obtained when NORA values found in DMD were compared with those of BMD or PM. In addition, when NORA values were exclusively calculated in regenerating myofibers in DMD, BMD and PM, no differences were appreciable. On the other hand, in non-regenerating myofibers, the NORA values showed a significant increase in DMD versus BMD and PM (P<0.001) as well as in each disease group versus controls. Our study documents that muscle diseases, such as DMD, BMD and PM in which regeneration is a constant finding, have a high rDNA transcriptional activity. In particular, our findings suggest that (1) regenerating nuclei behave in the same way in dystrophinopathies or PM; (2) virtually all nuclei, including quiescent-looking ones, are activated to realize an increased intracellular protein synthesis for proliferative and/or functional purposes; and (3) the quantity of AgNOR does not seem related to age of patients at the time of biopsy.
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Affiliation(s)
- G Tuccari
- Department of Human Pathology, Policlinico Universitario, Messina, Italy.
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Tuccari G, Giuffrè G, Crisafulli C, Barresi G. Immunohistochemical demonstration of lactoferrin in human neoplastic tissues. Adv Exp Med Biol 1998; 443:337-40. [PMID: 9781378 DOI: 10.1007/978-1-4757-9068-9_42] [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] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- G Tuccari
- Department of Human Pathology, University of Messina, Italy
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Tuccari G, Crisafulli C, Giuffrè G. p120 immunoexpression in neoplastic tissues. Hum Pathol 1998; 29:1176. [PMID: 9781665 DOI: 10.1016/s0046-8177(98)90441-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cuzzocrea S, Zingarelli B, Sautebin L, Rizzo A, Crisafulli C, Campo GM, Costantino G, Calapai G, Nava F, Di Rosa M, Caputi AP. Multiple organ failure following zymosan-induced peritonitis is mediated by nitric oxide. Shock 1997; 8:268-75. [PMID: 9329128 DOI: 10.1097/00024382-199710000-00006] [Citation(s) in RCA: 53] [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: 02/07/2023]
Abstract
In the present study we tested the hypothesis that nitric oxide may play a role in the pathogenesis of multiple organ failure induced by peritoneal injection of zymosan in the rat. A severe inflammatory response characterized by peritoneal exudation, high plasma and peritoneal levels of nitrate/ nitrite (breakdown products of nitric oxide), prostaglandin E2 and leukocyte infiltration into peritoneal exudate was induced by zymosan administration. This inflammatory process started within 3 h of administration and onset occurred at 18 h, coinciding with damage of lung, small intestine and liver, as assessed by histological examination and by increase of myeloperoxidase activity, indicative of neutrophil infiltration. Furthermore, at 18 h after zymosan-induced peritonitis, expression of inducible nitric oxide synthase enzyme was found mainly in the macrophages of inflamed lungs. Subcutaneously administration of a nonisoform selective nitric oxide synthase inhibitor, NG-nitro-L-arginine methyl ester, reduced formation of peritoneal exudate fluid, blocked plasma and peritoneal nitrate/nitrite accumulation, and attenuated the elevated release of peritoneal prostaglandin E2. In addition, nitric oxide synthase inhibition was effective in preventing the development of organ failure since tissue injury and neutrophil infiltration, by myeloperoxidase evaluation, was reduced in lung, small intestine, and liver. In conclusion, major findings of our study are that nitric oxide exerts a proinflammatory role in the development of multiple organ failure and nitric oxide synthase inhibition is an effective antiinflammatory therapeutic tool, since inhibits not only nitric oxide but also prostaglandin production and cellular infiltration in inflamed organs.
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Affiliation(s)
- S Cuzzocrea
- Institute of Pharmacology, School of Medicine, University of Messina, Italy
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Tuccari G, Vitarelli E, Crisafulli C, Giuffré G. Regarding Schmidt, D., von Hochstetter A.R., "The use of CD31 and collagen IV as vascular markers". Pathol Res Pract 1996; 192:94-5. [PMID: 8685048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Crisafulli C, Maggiore R, Scirè S, Galvagno S, Milone C. Bimetallic RuCu/SiO2 catalysts: Effect of total surface area on the catalytic properties. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/0304-5102(93)87022-z] [Citation(s) in RCA: 14] [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: 10/18/2022]
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Saadeh PB, Crisafulli C, Garofalo M. Needle EMG of the diaphragm. Muscle Nerve 1993; 16:323-5. [PMID: 8446133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Calapai G, Squadrito F, Rizzo A, Crisafulli C, Campo GM, Marciano MC, Mazzaglia G, Scuri R. A new antioxidant drug limits brain damage induced by transient cerebral ischaemia. Drugs Exp Clin Res 1993; 19:159-64. [PMID: 8131711 DOI: pmid/8131711] [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: 02/07/2023]
Abstract
Restoration of blood flow after an ischaemic event generates the formation of oxygen radicals which could augment brain damage. The authors studied the effects of different doses (50, 100, 200 mg/kg/i.p.) of a new antioxidant, IRFI-016, [2(2,3-dihydro-5-acetoxy-4,6,7-trimethylbenzofuranyl) acetic acid] on brain damage in the Mongolian gerbil induced by 5 min of bilateral carotid occlusion (BCO) followed by reperfusion. Post-ischaemic brain malondialdehyde (MDA) levels and locomotor activity at different times and delayed neuronal death of hippocampal CA1 area on the fourth day after occlusion were evaluated. During reperfusion, after BCO, enhancement of brain MDA occurs (37.5%, 62.5% and 100% at 15, 30 and 60 min of reperfusion, respectively). Brain MDA postischaemic increases were reduced at 15 min of reperfusion to 15.4% and 44.4% by IRFI-016, 100 and 200 mg/kg, respectively. After 30 min of reperfusion brain MDA was reduced to 31.25% and 53.13% by IRFI-016 100 and 200 mg/kg, respectively. Hyperactivity and delayed neuronal death of CA1 were significantly reduced in postischaemic gerbils treated with the highest doses of IRFI-016. Results indicate that pretreatment with the antioxidant IRFI-016 improves in a dose-dependent manner brain damage induced by ischaemia and reperfusion in the gerbil.
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Affiliation(s)
- G Calapai
- Institute of Pharmacology, Faculty of Medicine, University of Messina, Italy
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Rizzo A, Crisafulli C, Maiorca A, Tuccari G. [Expression of proliferating cell nuclear antigen (PCNA) and its correlation with Ki-67, TfR, ET, PgR, pTNM in carcinoma of the breast]. Pathologica 1992; 84:65-9. [PMID: 1363759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023] Open
Affiliation(s)
- A Rizzo
- Dipartimento di Patologia Umana, Università, Messina
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35
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Tuccari G, Rizzo A, Crisafulli C, Barresi G. Iron-binding proteins in human colorectal adenomas and carcinomas: an immunocytochemical investigation. Histol Histopathol 1992; 7:543-7. [PMID: 1457975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
By immunocytochemistry, the presence of major iron-binding proteins (lactoferrin, transferrin and ferritin) was investigated in tubular adenomas (12 cases), villous adenomas (7 cases), carcinomas of the large bowel and rectum (39 cases) and lymph nodes involved in carcinomas (8 cases); 5 samples of colonic inflammatory pseudopolyps were also studied. Dysplastic areas of tubular and villous adenomas as well as adenocarcinomas and colloid carcinomas showed a variable cytoplasmic immunoreactivity for all antisera, although no staining was noted in some cases; tubular adenomas without dysplasia and colonic inflammatory pseudopolyps were always unstained. Metastatic elements present in lymph nodes maintained the immunohistochemical staining for iron-binding proteins. An autoctone production of lactoferrin, transferrin and ferritin by tumour cells may be hypothesized in relation to the increased requirement of iron for the turnover of rapidly dividing cells.
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Affiliation(s)
- G Tuccari
- Department of Human Pathology, Policlinico Universitario Pad. D, Messina, Italy
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Tuccari G, Muscarà M, Giuffrè G, Crisafulli C, Barresi G. The application of AgNOR technique on glycol-methacrylate embedded human normal and pathological tissues. Pathologica 1992; 84:317-24. [PMID: 1465316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The Authors have applied the AgNOR technique to a series of normal and pathological human tissues fixed in neutral buffered formalin and methacarnoy and embedded in glycol-methacrylate. The results show the compatibility of the AgNOR technique with this embedding medium as well as the possibility to obtain an adequate visualization of the specific silver precipitates (AgNORs) on a unique focal plane without appreciable nuclear overlap, making thus the valuation of the AgNORs less subjective.
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Affiliation(s)
- G Tuccari
- Dipartimento di Patologia Umana, Policlinico Universitario, Messina
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Calapso P, Vitarelli E, Crisafulli C, Tuccari G. Immunocytochemical detection of megakaryocytes by endothelial markers: a comparative study. Pathologica 1992; 84:215-23. [PMID: 1437309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
By endothelial markers such as FVIII, UEA-I, CD31 and QBEND/10, the Authors have investigated the immunohistochemical pattern of bone marrow megakaryocytes in myelodysplastic (8 cases) and myeloproliferative (35 cases) disorders as well as in control biopsies (8 cases). An evident cytoplasmic positivity with FVIII and UEA-I was encountered in all normal and pathological specimens, whereas the immunolocalization of CD31 was limited to megakaryocytes present in normal bone marrow biopsies or in cases of myelofibrosis. No immunostaining with QBEND/10 was observed in any case, although the most selective staining of endothelial cells of bone marrow vessels was noted with this antibody. The usefulness to utilize endothelial markers in order to identify atypical and immature forms of megakaryocytes as well as micromegakaryocytes, especially in myelofibrosis by the aid of CD31, was also discussed.
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Affiliation(s)
- P Calapso
- Department of Human Pathology, University of Messina, Italy
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Arena F, Faraone V, Crisafulli C, De Gaetano C, Di Vincenzo C, Bartolo V, Di Mauro S. [The immunohistochemical demonstration of intracytoplasmic estradiol in colorectal neoplasms]. Chir Ital 1990; 42:19-26. [PMID: 2076583] [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: 12/30/2022]
Abstract
Intracytoplasmic estradiol content was studied retrospectively using immunohistochemical procedures in tissue samples from subjects suffering from colorectal cancer. The results obtained reveal the presence of intracytoplasmic estradiol in cancer tissue. In precancerous lesions this presence is rarer and inconstant. Estradiol was not detected in the healthy tissue examined. These data suggest that such tumours may depend to some degree on endocrine factors.
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Affiliation(s)
- F Arena
- Istituto di Chirurgia Generale, Università degli Studi di Messina
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Crisafulli C, Galvagno S, Maggiore R, Scir� S, Saeli A. Performance of supported Ru-Cu bimetallic catalysts prepared from nitrate precursors. Catal Letters 1990. [DOI: 10.1007/bf00764055] [Citation(s) in RCA: 18] [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]
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Crisafulli C, Maggiore R, Schembari G, Sciré S, Galvagno S. Influence of the support on the catalytic properties of bimetallic Ru-Cu samples. ACTA ACUST UNITED AC 1989. [DOI: 10.1016/0304-5102(89)80111-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Nicòtina PA, Gentile C, Porto AR, Arena F, Rizzo AG, Crisafulli C, Ferlazzo G. Perspectives for the grading of testicular disorders in childhood. Lectin binding and immunostain patterns in biopsy. J Endocrinol Invest 1989; 12:137-8. [PMID: 2809090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- P A Nicòtina
- Department of Human Pathology, University of Messina, Italy
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Crisafulli C. Examining your black box. Med Group Manage 1982; 29:16-8. [PMID: 10256734] [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: 02/12/2023]
Abstract
Effective management employs the skills of eliciting appropriate behavior and performance from people and successfully interacting with the environment. Formal management training is one tool that can help a medical group manager accomplish this objective. Another tool is a set of personal values which are consistent with the manager's actions. These values are neatly packaged in what the author calls a "black box." It makes for not only a healthy management style, but also a healthy person if the cognitions contained in one's black box are continually examined and weeded. To assist managers in identifying and examining the elements contained in their personal value sets, the author presents a few elements of his own black box.
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