81 results on '"Vassallo, V."'
Search Results
2. ARIADNEplus D15.2 - Final report on ARIADNEplus services
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Marberg J. F., Bardi A., Vlachidis A., Meghini C., Binding C., Tudhope D., Sinibaldi F., Ponchio F., Mangiacrapa F., Radman-Livaja I., Callieri M., Potenziani M., Lamé M., Assante M., Pagano P., Hermon S., and Vassallo V.
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Service ,Geospatial Service ,Text Mining ,Data Visualization ,Image Annotation ,NLP - Abstract
This deliverable describes the activities carried out within Work Package 15 (WP15) of the ARIADNEplus project by the different partners and describes the results achieved. The work package consists of several individual tasks and subtasks with the overall goal to develop and provide useful services to archaeologists. This means the work package is by nature heterogeneous with stand-alone tasks and services. Efforts have been made to facilitate collaboration between the individual tasks through joint work package meetings. This has resulted in new cross-task contacts being made, and some sharing of expertise to improve services has been done. A service design template aligning the ARIADNEplus services with the requirements from European Open Science Cloud (EOSC) has been created. In connection with this, the ARIADNEplus AO-CAT ontology has been adapted to the requirements from EOSC Resource Data Model (Task 15.1). The Visual Media Service (Task 15.2.1) has had a new format added, allowing for 2D visualisation of LIDAR data in DEM format. In addition, three other standards have been added: gITF, ThreeJS and IIIF, supporting various functionality in the service. The service has also been adapted to support integration with the ARIADNEplus infrastructure in D4Science. A visual wizard has been defined to guide Visual Media Service users to add hotspots to a 3D scene easily and quickly. This extension, initially implemented in 3DHOP will allow archaeologists to create interactive links from the digital 3D model to the related documentation without writing any source code (Task 15.2.2). Task 15.2.3 reworked the Online 3D Database System for Endangered architectural and archaeological Heritage in the south Eastern MEditerRAnea area (EpHEMERA). EpHEMERA is a service provided by the Cyprus Institute to visualize in 3D archaeological excavations, ancient buildings, and their related documentation. In EpHEMERA, it is possible to visualise, online and through standard web browsers, 3D architectural and archaeological models (classified according to a specific type of risk), query the database system and retrieve metadata attached to each digital object, and extract geometric and morphological information about the Cultural Heritage asset. The visualisation and annotation tool of the TSS project have been ported to the OpenLime library and integrated into the Visual Media Service (Task 15.2.1). An additional layer of SVG annotations have been developed and added to the service. The Annotation service have been used and improved in three different pilot projects. (Task 15.3.2) Various strands of work have been done improving services for text mining and Natural Language Processing (Task 15.4). One of these efforts has been building upon the outcomes of the preceding ARIADNE project. A set of archaeological Named Entity Recognition NLP pipelines were reconfigured and deployed for easier use on the General Architecture for Text Engineering (GATE) cloud. Another effort has been on extracting temporal archaeological information using two different parallel approaches, normalisation and named entity recognition. A Python development platform has been used to unify the various services. A Vocabulary Annotation Tool (Task 15.3.1) was developed using the same platform, as part of Task 15.4. The tool facilitates the locating and tagging of vocabulary terms within free text and outputs suggested subject annotations in a range of formats. The GeoPortal service (Task 15.5) is a new REST service designed to manage complex spatio-temporal documents defined by metadata profiles. It was released as a component of the gCube framework. A prototype using the service was deployed and operated to manage archaeological excavation projects (Task 15.7). Two services for querying the RDF AO-Cat metadata records aggregated by the ARIADNEplus Infrastructure was established (Task 15.6): a full-text index service and a SPARQL endpoint. The full- text index service is based on OpenSearch and supports the needed query functionality of the ARIADNEplus portal. The SPARQL endpoint allows performance of semantic queries on the RDF records within the ARIADNEplus data and knowledge cloud.
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- 2022
3. Erratum: Novel Hybrid Gels Made of High and Low Molecular Weight Hyaluronic Acid Induce Proliferation and Reduce Inflammation in an Osteoarthritis in Vitro Model Based on Human Synoviocytes and Chondrocytes (BioMed Research International (2019) 2019 (4328219) DOI: 10.1155/2019/4328219)
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Stellavato A., Vassallo V., La Gatta A., Pirozzi A. V. A., De Rosa M., Balato G., D'addona A., Tirino V., Ruosi C., Schiraldi C., Stellavato, A., Vassallo, V., La Gatta, A., Pirozzi, A. V. A., De Rosa, M., Balato, G., D'Addona, A., Tirino, V., Ruosi, C., and Schiraldi, C.
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In the article titled "Novel Hybrid Gels Made of High and Low Molecular Weight Hyaluronic Acid Induce Proliferation and Reduce Inflammation in an Osteoarthritis In Vitro Model Based on Human Synoviocytes and Chondrocytes" [1], there was an error in Figure 6. In the part of Figure 6(a), "HCC 24h" is incorrect. The corrected figure is shown below, and is listed as (Figure present).
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- 2020
4. An in vitro study to assess the effect of hyaluronan-based gels on muscle-derived cells: Highlighting a new perspective in regenerative medicine
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Stellavato A., Abate L., Vassallo V., Donniacuo M., Rinaldi B., Schiraldi C., Stellavato, A., Abate, L., Vassallo, V., Donniacuo, M., Rinaldi, B., and Schiraldi, C.
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- 2020
5. In vitro assessment of nutraceutical compounds and novel nutraceutical formulations in a liver-steatosis-based model
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Stellavato A, Pirozzi AVA, de Novellis F, Scognamiglio I, Vassallo V, Giori AM, De Rosa M, Schiraldi C., Stellavato, A, Pirozzi, Ava, de Novellis, F, Scognamiglio, I, Vassallo, V, Giori, Am, De Rosa, M, and Schiraldi, C.
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- 2018
6. A cultural heritage partonomy for the documentation of 3D digital artefacts of Cypriot coroplastic art
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Catalano C.E, Vassallo V., Hermon S., and Spagnuolo M.
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Cypriot coroplastic ,Ayia Irini ,CIDOC-CRMdig ,Salamis ,3D models ,partonomy - Abstract
The goal of this paper is defining a Cultural Heritage Artefact Partonomy (CHAP) concerning coroplastic Cypriot art. In particular, two case studies have been considered: the terracotta statues from the port of Salamis, attributed to the Neo-Cypriote style (ca. 600-500 BC), and the small clay statuettes from the Ayia Irini sanctuary, mostly attributed to the Cypro-Archaic period (700-500 BC). Although their differences in size, style and decorations, the items of this study represent male standing bearded figures, sometimes holding animals, arms or music instruments, and provide interesting examples for the description of human figures and their attributes in ancient times. Moreover, 3D digital models have been created digitising the physical artefacts for archaeological purposes. The objective of this work is framed within the EU GRAVITATE project, which proposes an innovative approach to the study of heritage artefacts, including 3D virtual reconstruction, classification and morphological analysis, steps that are limited by the impossibility to re-unite them physically, either because they are stored in various museums or because physical refitting fails. In this perspective, a controlled vocabulary for the documentation and retrieval of 3D digital fragments and their parts has been developed and proposed here. CHAP is a SKOS vocabulary, aligned and mapped to CIDOC CRM to integrate the description of the relationships between the parts and the overall context of the two archaeological collections. Focussing on both the artefacts and their digital counterparts, CHAP refers also to the CIDOC-CRMdig extension, where possible missing components have been identified and undertaken., Papers and presentations of CIDOC conference will be published in CIDOC ICOM site late January 2019.
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- 2019
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7. Shape analysis techniques for the Ayia Irini case study
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Andreas Scalas, Vassallo V., Mortara M., Spagnuolo M., and Hermon S.
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11. Sustainability ,0202 electrical engineering, electronic engineering, information engineering ,Computing methodologies: Shape analysis ,Shape representations ,020207 software engineering ,02 engineering and technology ,Computing methodologies ,Shape analysis ,Mesh geometry models - Abstract
The typical approach for archaeological analysis is mainly qualitative and, as such, subjective. Even when some measures are reported in the documentation of artefacts, they are often approximate or ambiguous. Conversely, the quantitative approach is based on objective metrics to produce replicable results and, coupled with digital tools, can assist the qualitative analysis in archaological research with no risk of damage. In this paper, we present a geometric-quantitative approach for the analysis of archaeological finds and the preliminary results of an ongoing joint research project of two doctoral students within the frame of the EU GRAVITATE project., Eurographics Workshop on Graphics and Cultural Heritage, Virtual Archaeology, 255, 258, Andreas Scalas, Valentina Vassallo, Michela Mortara, Michela Spagnuolo, and Sorin Hermon, CCS Concepts: Computing methodologies --> Shape analysis; Mesh geometry models; Shape representations
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- 2018
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8. IgG4 Related Syndrome: Another Multiorgan Disease in the Interest Field of Internal Medicine
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Antonino Tuttolomondo, Simonetta, I., Domenico Di Raimondo, Tiziana Di Chiara, Conigliaro, R., Corpora, F., Vassallo, V., Antonio Pinto, Pecoraro, R., Tuttolomondo A, Simonetta I, Di Raimondo D, Di Chiara T, Conigliaro R, Corpora F, Vassallo V, Pinto A., and Pecoraro, R.
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Male ,Systemic disease ,Pathology ,medicine.medical_specialty ,Settore MED/09 - Medicina Interna ,Cholangitis, Sclerosing ,Lymphadenopathy ,Azathioprine ,Retroperitoneal fibrosis ,Sialadenitis ,IgG4, syndrome, Internal Medicine ,Drug Discovery ,Internal Medicine ,medicine ,Humans ,Eosinophilia ,Aged ,Pharmacology ,business.industry ,Retroperitoneal Fibrosis ,Syndrome ,medicine.disease ,Immunoglobulin G ,Pancreatitis ,IgG4-related disease ,Sarcoidosis ,medicine.symptom ,Differential diagnosis ,business ,medicine.drug - Abstract
BACKGROUND: IgG4-related disease is a rare, clinical and pathologic disease entity of unknown etiology. Its main features are increased serum concentrations of IgG4 > 1,35 g/l, lymphocyte and IgG4+plasma-cell infiltration within tissues, fibrosis or sclerosis. The classical presentation of IgG4-RSD is pancreatitis which is combined with the involvement of biliary ducts in 74 percent of patients. Extrapancreatic manifestations include: abdominal or mediastinal lymphadenopathy; the involvement of salivary glands and lacrimal glands, kidneys, lung, retroperitoneum. Since IgG4-related disease is a multiorgan lymphoproliferative syndrome, it requires a careful differential diagnosis from other distinct disorders (sarcoidosis, immune rheumatic diseases, hematologic diseases, malignancies). Another distinctive feature is a fairly fast response to steroids, that represents the first-choice therapy. Immunosuppressant drugs (azathioprine, mycophenolate mofetil, methotrexate) might be chosen as glucocorticoid-sparing medications or to maintain steroid-induced remission (Fig. 1). METHODS: We report the case of a 70-year-old man and we performed a brief review of loiterature. RESULTS: Our patient has a clinical history including bronchial asthma, aortic aneurysm, histologically confirmed retroperitoneal fibrosis causing hydroureteronephrosis, prostatitis, interstitial pulmonary fibrosis, sclerosing chronic pancreatitis (histologically documented), previous chronic cholecystitis (histologically confirmed), previous pericarditis, xeroftalmia, polyclonal hypergammaglobulinemia, eosinophilia. His serum IgG4 levels were significantly increased (5560 mg/dl). In regard to the above mentioned elements a systemic disease characterized by elevated serum levels of IgG4 and IgG4-positive lymphoplasmacytic infiltrative lesions in several tissues, was suspected. Immune-rheumatic diseases and infectious diseases were excluded. Steroid treatment was started achieving a significant swift response. CONCLUSION: Until now IgG4 related disease has been considered rare in the West and exclusive of Japanese and Korean countries, our case report leads us to reflect on the necessity to take into account this disease in patients with multisystemic involvement.
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- 2016
9. 4. Inflammation, Endothelial Dysfunction and Arterial Stiffness as Therapeutic Targets in Cardiovascular Medicine
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Della Corte V, TUTTOLOMONDO, Antonino, PECORARO, Rosaria, DI RAIMONDO, Domenico, Vassallo V, PINTO, Antonio, and Della Corte V, Tuttolomondo A, Pecoraro R, Di Raimondo D, Vassallo V, Pinto A.
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Settore MED/09 - Medicina Interna ,surrogate, arterial stiffness, endothelial dysfunction - Abstract
In the last decades, many factors thought to be associated with the atherosclerotic process and cardiovascular events have been studied, and some of these have been shown to correlate with clinical outcome, such as arterial stiffness, endothelial dysfunction and immunoinflammatory markers. Arterial stiffness is an important surrogate marker that describes the capability of an artery to expand and contract in response to pressure changes. It can be assessed with different techniques, such as the evaluation of PWV and AIx. It is related to central systolic pressure and it is an independent predictor of cardiovascular morbidity and mortality in hypertensive patients, type 2 diabetes, end-stage renal disease and in elderly populations. The endothelium has emerged as the key regulator of vascular homeostasis, in fact, it has not merely a barrier function but also acts as an active signal transducer for circulating influences that modify the vessel wall phenotype. When its function is lost, it predisposes the vasculature to vasoconstriction, leukocyte adherence, platelet activation, thrombosis and atherosclerosis. Non-invasive methods were developed to evaluate endothelial function, such as the assesment of FMD, L-FMC and RHI. Moreover in the last years, a large number of studies have clarified the role of inflammation and the underlying cellular and molecular mechanisms that contribute to atherogenesis. For clinical purposes, the most promising inflammatory biomarker appears to be CRP and a variety of population-based studies have showed that baseline CRP levels predict future cardiovascular events. Each of the markers listed above has its importance from the pathophysiological and clinical point of view, and those can also be good therapeutic targets. However, it must be stressed that assessments of these vascular markers are not mutually exclusive, but rather complementary and those can offer different views of the same pathology. The purpose of this review is to analyze the role of arterial stiffness, endothelial dysfunction and immunoinflammatory markers as surrogate endpoint, assessing the correlations between these markers and evaluating the therapeutic perspectives that these offer.
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- 2016
10. HepG2 and human healthy hepatocyte in vitro culture and co-culture in PCL electrospun platforms
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Fasolino, I, primary, Guarino, V, additional, Marrese, M, additional, Cirillo, V, additional, Vallifuoco, M, additional, Tamma, M L, additional, Vassallo, V, additional, Bracco, A, additional, Calise, F, additional, and Ambrosio, L, additional
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- 2017
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11. Improving the diagnostic accuracy of depression in older persons: the Depression in the Aged Female National Evaluation cluster randomized trial
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Lattanzio F, Di Bari M, Sgadari A, Baccini M, Ercolani S, Rengo F, Senin U, Bernabei R, Marchionni N, Cherubini A, Depression in the Aged Female National Evaluation Study Group: Rozzini R, Cassinadri A, Ricci A, Valenti G, Falzoi C, Grimaldi W, Putzu PF, Porceddu C, Coghe F, Matta M, Manca E, Mereu MR, Viale D, Antonelli Incalzi R, Ciaburri M, Di Palma R, Pagano F, Zamboni V, Borghesi T, Crovetti B, Inzitari M, Masotti G, Mossello E, Sarcone E, Sforza G, Cerqua R, Califano M, Pilotto A, Cascavilla L, Paris F, Salvioli G, Badini I, Foroni M, Sabbatici F, Salsi F, Abate G, Abate M, D'Attilio A, Di Iorio A, Fogliatta M, Zanatta A, Gasparini R, Gasparini G, Pedrazzoli R, Tobaldini C, Biagini C, Bencini F, Caleri V, Cantini C, Cipriani C, Luzzi C, Tonon E, Benedetti C, Ferretti R, Macchiarulo C, ABETE, PASQUALE, Mazzella F, Pollice S, Vassallo V, Di Stefano F, Gulizia G, Mazzarella R., Lattanzio, F, Di Bari, M, Sgadari, A, Baccini, M, Ercolani, S, Rengo, F, Senin, U, Bernabei, R, Marchionni, N, Cherubini, A, Depression in the Aged Female National Evaluation Study Group: Rozzini, R, Cassinadri, A, Ricci, A, Valenti, G, Falzoi, C, Grimaldi, W, Putzu, Pf, Porceddu, C, Coghe, F, Matta, M, Manca, E, Mereu, Mr, Viale, D, Antonelli Incalzi, R, Ciaburri, M, Di Palma, R, Pagano, F, Zamboni, V, Borghesi, T, Crovetti, B, Inzitari, M, Masotti, G, Mossello, E, Sarcone, E, Sforza, G, Cerqua, R, Califano, M, Pilotto, A, Cascavilla, L, Paris, F, Salvioli, G, Badini, I, Foroni, M, Sabbatici, F, Salsi, F, Abate, G, Abate, M, D'Attilio, A, Di Iorio, A, Fogliatta, M, Zanatta, A, Gasparini, R, Gasparini, G, Pedrazzoli, R, Tobaldini, C, Biagini, C, Bencini, F, Caleri, V, Cantini, C, Cipriani, C, Luzzi, C, Tonon, E, Benedetti, C, Ferretti, R, Macchiarulo, C, Abete, Pasquale, Mazzella, F, Pollice, S, Vassallo, V, Di Stefano, F, Gulizia, G, and Mazzarella, R.
- Abstract
Objectives: To evaluate whether a training intervention can improve the ability of geriatricians to recognize depression in older persons. Design: Multicenter, cluster randomized clinical trial. Setting: Fourteen geriatric outpatient clinics in Italy, each representing the unit of randomization. Participants: After training, a total of 1,914 outpatients aged 65 years and older in both arms, not on antidepressant at entry, were blindly evaluated by the clinic geriatrician, in charge of routine clinical management, and by a field researcher, who formally diagnosed depression by the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV), taken as the criterion standard. Intervention: After randomization, geriatricians belonging to the intervention arm were assigned to receive a residential 3-day educational program on depression. Those in the control arm received a generic course on disease management in elderly people. Measurements: Sensitivity and specificity of the diagnosis of depression made by geriatricians, compared with the DSM-IV diagnosis. Results: Sensitivity and specificity were significantly higher in trained than in untrained geriatricians (49 vs 35% and 91 vs 88%, respectively; P=.002 in marginal regression models). Effectiveness of training was confirmed, adjusting for age, sex, and cognitive performance (P=.02). Conclusion: The ability of geriatricians to diagnose depression in older outpatients can be improved with a specific training intervention. Improvement of diagnostic performance might translate into more-appropriate clinical management.
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- 2009
12. Metodologia per la ricostruzione 3D del paesaggio archeologico
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Moro, A. and Vico, L., Vassallo, V.
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Metodologie ,Paesaggio ,3D - Published
- 2007
13. From relief to the 3D Reconstruction: the Methodology
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Moro, A., Vassallo, V., and Vico, L.
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Rilievo_3D ,Modellazione_3D ,Metodologia - Published
- 2007
14. Modern Documentation to Communicate the Cultural heritage: the Via Flaminia Project
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Vico Lopez, L., Moro, A., and Vassallo, V.
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Patrimonio Culturale ,Comunicazione - Published
- 2007
15. The Importance of Relief and the Sources to Interpret and Communicate the Cultural Heritage
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Vassallo, V., Vico, L., and Moro, A.
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Patrimonio Culturale ,Conoscenza ,Comunicazione - Published
- 2006
16. Tracing provenance of lost and found Cypriot Byzantine icons
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Vassallo, V., primary, Kyriacou, N., additional, Hermon, S., additional, and Eliades, I., additional
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- 2013
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17. Decision making support systems for the Archaeological domain: A Natural Language Processing proposal
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di Buono, M. P., primary, Monteleone, M., additional, Ronzino, P., additional, Vassallo, V., additional, and Hermon, S., additional
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- 2013
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18. 3D documentation pipeline of Cultural Heritage artifacts: A cross-disciplinary implementation
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Athanasiou, E., primary, Faka, M., additional, Hermon, S., additional, Vassallo, V., additional, and Yiakoupi, K., additional
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- 2013
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19. Revealing cross-disciplinary information through formal knowledge representation — A proposed Metadata for ancient Cypriot inscriptions
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Vassallo, V., primary, Christophorou, E., additional, Hermon, S., additional, and Niccolucci, F., additional
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- 2013
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20. Publishing cultural heritage content for digital libraries: The case of the collections of the Byzantine Museum and Art Gallery of the Archbishop Makarios III foundation
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Vassallo, V., primary, Athanasiou, E., additional, Hermon, S., additional, and Eliades, I., additional
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- 2013
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21. The convulsive treatment of mental disorder
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Vassallo, V.
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Electroconvulsive therapy ,Mental illness -- Alternative treatment ,Mental illness -- Drug therapy ,Mental illness -- Treatment - Abstract
Among the physical methods of treatment of mental disorder, convulsive methods give the most positive results. They consist in the artificial induct' on of convulsions, very much similar to epileptic seizures, by means of pentamethylcne-tetrazol or electric current. The original working hypothesis (VON MEDUNA) was an alleged biological antagonism between Schizophrenia and Epilepsy, which has been mainly disproved., N/A
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- 1949
22. Glare Sensitivity Related to Use of Contact Lenses
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Miller, D., primary, Wolf, E., additional, Geer, S., additional, and Vassallo, V., additional
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- 1967
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23. Cellulose from Posidonia oceanica Sea Balls (Egagropili) as Substrate to Enhance Streptomyces roseochromogenes Cellulase Biosynthesis
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Odile Francesca Restaino, Sabrina Cuomo, Sergio D’Ambrosio, Valentina Vassallo, Seyedeh Fatemeh Mirpoor, Concetta Valeria L. Giosafatto, Raffaele Porta, Chiara Schiraldi, Restaino, O. F., Cuomo, S., D'Ambrosio, S., Vassallo, V., Mirpoor, S. F., Giosafatto, C. V. L., Porta, R., and Schiraldi, C.
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marine origin plant waste ,Posidonia oceanica egagropili ,Plant Science ,cellulases ,lignocellulose biomasses ,Streptomyces roseochromogenes ,Biochemistry, Genetics and Molecular Biology (miscellaneous) ,cellulose ,Food Science - Abstract
Enhancing Streptomyces cellulase production by supplying lignocellulose biomasses has been poorly investigated so far. In this research the biosynthesis of Streptomyces roseochromogenes ATCC13400 cellulases was increased for the first time by addition of a cellulose fraction (2.5 g·L−1) to the growth medium, isolated from the marine origin Posidonia oceanica sea balls, generally called egagropili.. In shake flasks the cellulase production increased of 4.3 folds, compared to the control, up to 268 U·L−1 in 72 h, with a productivity of 3.7 U·L−1·h−1, while in batch it was further enhanced up to 347 U·L−1 in 45 h with a doubled productivity of 7.7 U·L−1·h−1 A downstream protocol was set up by coupling two ultrafiltration steps on 10 and 3 kDa membranes to recover the enzymes from the supernatant. A pool of three cellulases, having molecular weights between 115 and 47 kDa, was recovered. The optimal conditions for their enzymatic activity were 60 °C and pH 5.0, and they showed CMCase, FPase and β-glucosidase action. In conclusion, S. roseochromogenes might be considered a new cell factory for cellulase biotechnological production that might be enhanced by using the cellulose from egagropili, a well-known marine origin plant waste, as the substrate.
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- 2023
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24. Molecular Fingerprint of Human Pathological Synoviocytes in Response to Extractive Sulfated and Biofermentative Unsulfated Chondroitins
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Valentina Vassallo, Antonietta Stellavato, Rosita Russo, Donatella Cimini, Mariangela Valletta, Alberto Alfano, Paolo Vincenzo Pedone, Angela Chambery, Chiara Schiraldi, Vassallo, V., Stellavato, A., Russo, R., Cimini, D., Valletta, M., Alfano, A., Pedone, P. V., Chambery, A., and Schiraldi, C.
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intracellular proteomic ,Inorganic Chemistry ,extractive chondroitin sulfate ,Organic Chemistry ,General Medicine ,Physical and Theoretical Chemistry ,Molecular Biology ,human primary synoviocyte ,human primary synoviocytes ,Spectroscopy ,Catalysis ,biofermentative unsulfated chondroitin ,Computer Science Applications - Abstract
Pharma-grade extractive chondroitin sulfate (CS) is widely used for osteoarthritis (OA) treatment. Recently, unsulfated biofermentative chondroitin (BC) proved positive effects in OA in vitro model. This study, based on primary pathological human synoviocytes, aimed to analyze, by a multiplex assay, a panel of OA-related biomarkers in response to short-term treatments with bovine (CSb), pig (CSp) and fish (CSf) chondroitins, in comparison to BC. As expected, all samples had anti-inflammatory properties, however CSb, CSf and especially BC affected more cytokines and chemokines. Based on these results and molecular weight similarity, CSf and BC were selected to further explore the synoviocytes’ response. In fact, Western blot analyses showed CSf and BC were comparable, downregulating OA-related biomarkers such as the proteins mTOR, NF-kB, PTX-3 and COMP-2. Proteomic analyses, performed by applying a nano-LC-MS/MS TMT isobaric labelling-based approach, displayed the modulation of both common and distinct molecules to chondroitin treatments. Thus, CSf and BC modulated the biological mediators involved in the inflammation cascade, matrix degradation/remodeling, glycosaminoglycans’ synthesis and cellular homeostasis. This study helps in shedding light on different molecular mechanisms related to OA disease that may be potentially affected not only by animal-source chondroitin sulfate but also by unsulfated biofermentative chondroitin.
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- 2022
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25. Effects of intravenous furosemide plus small-volume hypertonic saline solutions on markers of heart failure
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Alessandra Casuccio, Domenico Di Raimondo, Tiziana Di Chiara, Alba Mogavero, Carlo Maida, Maria Grazia Puleo, Antonino Tuttolomondo, Mario Daidone, Valerio Vassallo, Alessandro Del Cuore, Roberto Fonte, Antonella Ortello, Antonio Pinto, Tuttolomondo A., Maida C., Casuccio A., Di Raimondo D., Fonte R., Vassallo V., Puleo M.G., Di Chiara T., Mogavero A., Del Cuore A., Daidone M., Ortello A., and Pinto A.
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medicine.medical_specialty ,Settore MED/09 - Medicina Interna ,Acute decompensated heart failure ,medicine.medical_treatment ,furosemide, Heart failure, HSS, Biomarkers ,Gastroenterology ,Furosemide ,Internal medicine ,Original Research Articles ,medicine ,Diseases of the circulatory (Cardiovascular) system ,Humans ,Original Research Article ,HSS ,Diuretics ,Saline ,Heart Failure ,Saline Solution, Hypertonic ,Ejection fraction ,Troponin T ,business.industry ,Therapeutic effect ,medicine.disease ,Hypertonic saline ,RC666-701 ,Heart failure ,Cardiology and Cardiovascular Medicine ,business ,Biomarkers ,medicine.drug - Abstract
Aims: We sought to compare the effects of furosemide+hypertonic saline solution (HSS) treatment in patients with acute decompensated heart failure in comparison with furosemide alone and the response in a compensated state after an acute saline load with regard to serum levels of heart failure biomarkers. Methods and results: We enrolled 141 patients with acute decompensated heart failure with reduced ejection fraction admitted to our Internal Medicine ward from March 2017 to November 2019. A total of 73 patients were randomized to treatment with i.v. high-dose furosemide plus HSS, whereas 68 patients were randomized to i.v. high-dose furosemide alone. Patients treated with furosemide plus HSS compared with controls treated with furosemide alone showed a comparable degree of reduction in the serum levels of interleukin (IL)-6, soluble suppression of tumorigenicity 2 (sST2), and N-terminal pro-brain natriuretic peptide (NT-proBNP) in the ‘between-group’ analysis. Nevertheless, patients treated with high-dose furosemide+HSS showed significantly higher absolute delta values of IL-6 (2.3±1.2 vs. 1.7±0.9, P 
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- 2021
26. A case of infective colitis due to Yersinia enterocolitica complicated by microliver abscesses mimicking multiple liver occult metastases: a case report
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Marco Cataldi, Giuseppe Brancatelli, Chiara Pintus, Antonino Tuttolomondo, Valerio Vassallo, Salvatore Miceli, Rosario Luca Norrito, Mario Daidone, Maria Grazia Puleo, Alessandro Del Cuore, Tiziana Di Chiara, G. Pizzo, Antonio Pinto, Norrito R.L., Pintus C., Cataldi M., Del Cuore A., Daidone M., Vassallo V., Puleo M.G., Di Chiara T., Miceli S., Pizzo G.M., Brancatelli G., Tuttolomondo A., and Pinto A.
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0301 basic medicine ,medicine.medical_specialty ,Settore MED/09 - Medicina Interna ,Case report, Infective colitis, Microliver abscesses, Yersinia enterocolitica, Aged, Anti-Bacterial Agents, Bacteremia, Liver Neoplasms, Treatment Outcome, Yersinia Infections, Colitis, Diagnosis, Differential, Female, Humans, Liver Abscess ,Yersinia Infections ,030106 microbiology ,Liver Abscess ,Infective colitis ,Case Report ,Bacteremia ,Infectious and parasitic diseases ,RC109-216 ,Inflammatory bowel disease ,Gastroenterology ,Metastasis ,Diagnosis, Differential ,03 medical and health sciences ,0302 clinical medicine ,Medical microbiology ,Internal medicine ,medicine ,Humans ,030212 general & internal medicine ,Yersinia enterocolitica ,Aged ,Doxycycline ,biology ,business.industry ,Liver Neoplasms ,Microliver abscesses ,medicine.disease ,biology.organism_classification ,Colitis ,Occult ,Anti-Bacterial Agents ,Infectious Diseases ,Treatment Outcome ,Female ,Differential diagnosis ,business ,Cefixime ,medicine.drug - Abstract
Background We report an unusual case of infective colitis by Yersinia enterocolitica complicated by microliver abscesses mimicking multiple liver metastases in a 79 yr old female without any risk factors for bacteriaemia by this pathogen. Case presentation The patient was admitted to the Internal Medicine with Stroke Care ward of University Policlinico “P. Giaccone” in Palermo because of the appearance of diarrhoea. After the antimicrobial treatment for infective colitis, the clinicians observed a persistently increased white blood cells (WBC) count and multiple hepatic lesions; after having excluded any neoplastic disease and inflammatory bowel disease (IBD), blood cultures positive for Y. enterocolitica allowed to establish the final diagnosis was infective micro liver abscesses consequent to infective colitis due to Y. enterocolitica, which were successfully treated with cefixime and doxycycline. Conclusions This case report should make clinicians reflect on how complex the differential diagnosis between microliver abscesses and metastasis could be and the possibility of bacteriaemia by Y. enterocolitica even without iron overload conditions.
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- 2021
27. Relationship between adherence to the Mediterranean Diet, intracerebral hemorrhage, and its location
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Carlo Maida, Mariachiara Velardo, Alessandra Casuccio, Vittoriano Della Corte, Valerio Vassallo, Valentina Arnao, Francesca Corpora, Giovanni Salamone, Antonino Tuttolomondo, Irene Simonetta, Rosaria Pecoraro, Anna Cirrincione, Vincenzo Restivo, Antonio Pinto, Domenico Di Raimondo, and Tuttolomondo A, Di Raimondo D, Casuccio A, Velardo M, Salamone G, Arnao V, Pecoraro R, Della Corte V, Restivo V, Corpora F, Maida C, Simonetta I, Cirrincione A, Vassallo V, Pinto A
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Male ,medicine.medical_specialty ,Time Factors ,Settore MED/09 - Medicina Interna ,Internal capsule ,Mediterranean diet ,Endocrinology, Diabetes and Metabolism ,Medicine (miscellaneous) ,030209 endocrinology & metabolism ,030204 cardiovascular system & hematology ,Diet, Mediterranean ,Risk Assessment ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Internal medicine ,Prevalence ,Humans ,Medicine ,In patient ,cardiovascular diseases ,Stroke ,Aged ,Cerebral Hemorrhage ,Retrospective Studies ,Aged, 80 and over ,Intracerebral hemorrhage ,Nutrition and Dietetics ,Proteinuria ,business.industry ,Retrospective cohort study ,Middle Aged ,Protective Factors ,Prognosis ,medicine.disease ,Italy ,Mediterranean Diet, ICH ,Female ,Diet, Healthy ,medicine.symptom ,Cardiology and Cardiovascular Medicine ,business ,Risk Reduction Behavior ,Dyslipidemia - Abstract
INTRODUCTION: Although some authors evaluated the relationship between adherence to the Mediterranean Diet (MeDi) and both ischemic and hemorrhagic stroke, hemorrhagic stroke alone is not yet examined. AIMS: We conducted a retrospective study to evaluate the relationship between adherence to MeDi and intracerebral hemorrhage (ICH) and different locations of ICH (ganglionic/internal capsule, brainstem/cerebellum, or lobar). METHODS: We analyzed charts and collected data of all consecutive patients with ICH admitted to our Internal Medicine Ward from 2005 to 2014. A scale indicating the degree of adherence to the traditional MeDi Score was constructed. RESULTS: When compared with 100 subjects without ICH, 103 subjects with ICH had significantly higher mean values of LDL (91.1 ± 38.7 mg/dl vs. 79.2 ± 34.4 mg/dl; p = 0.031), triglycerides (118.9 ± 62.9 mg/dl vs. 101.6 ± 47.6 mg/dl; p = 0.026), and proteinuria (32.6 ± 50.0 mg/dl vs. 18.1 ± 39.6 mg/dl; p=0.024) and a significantly lower mean MeDi Score (3.9 ± 1.0 vs. 7.0 ± 1.4; p < 0.0001). In a multiple regression analysis, smoking, diastolic blood pressure (DBP), and the MeDi Score remained significantly associated with ICH. We also observed a significantly lower mean MeDi Score in the lobar location group when compared with the ganglionic/internal capsule group (4.3 ± 1.0 vs. 3.5 ± 0.9; p < 0.0005). DISCUSSION: Our findings regarding the higher prevalence of ICH in patients with lower adherence to MeDi may be related to the fact that patients with lower MeDi Score exhibit a worse cardiovascular risk profile with increased risk factors such as hypertension and dyslipidemia.
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- 2019
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28. World Congress on Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (WCO-IOF-ESCEO 2020): Meet-The-Experts Abstracts
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A. Stellavato, O. F. Restaino, V. Vassallo, R. Finamore, C. Ruosi, C. Schiraldi, Stellavato, A., Restaino, O. F., Vassallo, V., Finamore, R., Ruosi, C., and Schiraldi, C.
- Published
- 2021
29. Unsulfated biotechnological chondroitin by itself as well as in combination with high molecular weight hyaluronan improves the inflammation profile in osteoarthritis in vitro model
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Alessio D'Addona, Anna Virginia Adriana Pirozzi, Valentina Vassallo, Marcella Cammarota, Carlo Ruosi, Chiara Schiraldi, Giovanni Balato, Antonietta Stellavato, Alberto Alfano, Donatella Cimini, Vassallo, V., Stellavato, A., Cimini, D., Pirozzi, A. V. A., Alfano, A., Cammarota, M., Balato, G., D'Addona, A., Ruosi, C., and Schiraldi, C.
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0301 basic medicine ,medicine.medical_treatment ,human synoviocyte ,Inflammation ,Video microscopy ,Osteoarthritis ,Pharmacology ,hybrid cooperative complexes ,Cell morphology ,Biochemistry ,03 medical and health sciences ,chemistry.chemical_compound ,human articular chondrocyte ,0302 clinical medicine ,hybrid cooperative complexe ,medicine ,Extracellular ,Chondroitin ,Molecular Biology ,biotechnological chondroitin ,Research Articles ,human articular chondrocytes ,Chemistry ,Cell Biology ,medicine.disease ,human synoviocytes ,osteoarthritis ,030104 developmental biology ,Cytokine ,inflammation ,030220 oncology & carcinogenesis ,Viscosupplementation ,medicine.symptom ,Research Article - Abstract
Several studies suggest that inflammation has a pivotal role during the progression of osteoarthritis (OA) and cytokines have been identified as the main process mediators. This study aimed to explore the ability to modulate the main OA pro‐inflammatory biomarkers of novel gels (H‐HA/BC) based on high molecular weight hyaluronan (H‐HA) and unsulfated biotechnological chondroitin (BC). For the first time, BC was tested also in combination with H‐HA on human primary cells isolated from pathological knee joints. Specifically, the experiments were performed using an OA in vitro model based on human chondrocytes and synoviocytes. To evaluate the anti‐inflammatory effects of H‐HA/BC in comparison with H‐HA and BC single gels, NF‐kB, COMP‐2, MyD88, MMP‐13 and a wide range of cytokines, known to be specific biomarkers in OA (e.g., IL‐6, IL‐8, and TNF‐α), were evaluated. In addition, cell morphology and proliferation occurring in the presence of either H‐HA/BC or single components were assessed using time‐lapse video microscopy. It was shown that synovial fluids and cells isolated from OA suffering patients, presented a cytokine pattern respondent to an ongoing inflammation status. H‐HA and BC significantly reduced the levels of 23 biomarkers associated with cartilage damage. However, H‐HA/BC decreased significantly 24 biological mediators and downregulated 19 of them more efficiently than the single components. In synoviocytes cultures, cytokine analyses proved that H‐HA/BC gels re‐established an extracellular environment more similar to a healthy condition reducing considerably the concentration of 11 analytes. Instead, H‐HA and BC significantly modulated 7 (5 only with a longer treatment) and 8 biological cytokines, respectively. Our results suggest that H‐HA/BC beyond the viscosupplementation effect typical for HA‐based gels, can improve the inflammation status in joints and thus could be introduced as a valid protective and anti‐inflammatory intraarticular device in the field of Class III medical devices for OA treatments., Unsulfated biotechnological chondroitin by itself and complexed to hyaluronic acid counteract inflammation and improve the viability of human primary cells isolated from pathological osteoarthritis joints. Their potential efficacy, especially when combined in novel gels is supported by the modulation of several key biomarkers.
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- 2021
30. Positive Effects against UV-A Induced Damage and Oxidative Stress on an In Vitro Cell Model Using a Hyaluronic Acid Based Formulation Containing Amino Acids, Vitamins, and Minerals
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Chiara Schiraldi, Valentina Vassallo, Stella Donato, Antonietta Stellavato, Mario De Rosa, Stefania Filosa, Alba Di Pardo, Ilaria Scognamiglio, Gilberto Bellia, Anna Virginia Adriana Pirozzi, Sabrina Reale, Stellavato, A, Pirozzi, A, Donato, S, Scognamiglio, I, Reale, S, Di Pardo, A, Filosa, S, Vassallo, V, Bellia, G, De Rosa, M, and Schiraldi, Chiara
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0301 basic medicine ,Antioxidant ,Article Subject ,medicine.medical_treatment ,Cell ,lcsh:Medicine ,Video microscopy ,oxidative damage ,medicine.disease_cause ,General Biochemistry, Genetics and Molecular Biology ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,dermal fillers ,skin photoaging ,Hyaluronic acid ,medicine ,chemistry.chemical_classification ,General Immunology and Microbiology ,lcsh:R ,ROS ,General Medicine ,In vitro ,UV ,Amino acid ,HaCaT ,030104 developmental biology ,medicine.anatomical_structure ,chemistry ,Biochemistry ,030220 oncology & carcinogenesis ,Oxidative stress ,Research Article - Abstract
Ultraviolet (UV) radiations are responsible for skin photoaging inducing alteration of the molecular and cellular pathways resulting in dryness and reduction of skin elasticity. In this study, we investigated, in vitro, the antiaging and antioxidant effects of hyaluronan formulations based hydrogel. Skinkò E, an intradermic formulation composed of hyaluronic acid (HA), minerals, amino acids, and vitamins, was compared with the sole HA of the same size. For this purpose, HaCaT cells were subjected to UV-A radiations and H2O2 exposure and then treated with growth medium (CTR) combined with M-HA or Skinkò E to evaluate their protective ability against stressful conditions. Cells reparation was evaluated using a scratch in vitro model and Time-Lapse Video Microscopy. A significant protective effect for Skinkò E was shown with respect to M-HA. In addition, Skinkò E increased cell reparation. Therefore, NF-kB, SOD-2, and HO-1 were significantly reduced at the transcriptional and protein level. Interestingly, γ-H2AX and protein damage assay confirmed the protection by hyaluronans tested against oxidative stress. G6pdΔ ES cell line, highly susceptible to oxidative stress, was used as a further cellular model to assess the antioxidant effect of Skinkò E. Western blotting analyses showed that the treatment with this new formulation exerts marked antioxidant action in cells exposed to UV-A and H2O2. Thus, the protective and reparative properties of Skinkò E make it an interesting tool to treat skin aging.
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- 2018
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31. Novel Hybrid Gels Made of High and Low Molecular Weight Hyaluronic Acid Induce Proliferation and Reduce Inflammation in an Osteoarthritis In Vitro Model Based on Human Synoviocytes and Chondrocytes
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Annalisa La Gatta, Chiara Schiraldi, Alessio D'Addona, Virginia Tirino, Anna Virginia Adriana Pirozzi, Carlo Ruosi, Mario De Rosa, Antonietta Stellavato, Giovanni Balato, Valentina Vassallo, Stellavato, A., Vassallo, V., La Gatta, A., Pirozzi, A. V. A., De Rosa, M., Balato, G., D'Addona, A., Tirino, V., Ruosi, C., Schiraldi, C., Stellavato, Antonietta, Vassallo, Valentina, LA GATTA, Annalisa, Virginia Adriana Pirozzi, Anna, DE ROSA, Mario, Balato, Giovanni, D’Addona, Alessio, Tirino, Virginia, Ruosi, Carlo, and Schiraldi, Chiara
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0301 basic medicine ,Article Subject ,Cytokine profile ,lcsh:Medicine ,Video microscopy ,Inflammation ,Osteoarthritis ,Models, Biological ,General Biochemistry, Genetics and Molecular Biology ,In vitro model ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Chondrocytes ,Hyaluronic acid ,medicine ,Synovial fluid ,Humans ,Hyaluronic Acid ,Cell Proliferation ,General Immunology and Microbiology ,Cartilage ,lcsh:R ,General Medicine ,medicine.disease ,Synoviocytes ,Molecular Weight ,030104 developmental biology ,medicine.anatomical_structure ,chemistry ,030220 oncology & carcinogenesis ,Cancer research ,medicine.symptom ,Inflammation Mediators ,Gels ,Research Article - Abstract
High molecular weight hyaluronan (H-HA) has a pivotal role in the maintenance of normal functions of synovial fluid and structure of the articular joint, but it has been shown that its concentration is reduced in patients affected by degenerative cartilage diseases, such as osteoarthritis (OA). The aim of this study was to investigate the anti-inflammatory effects and properties of hybrid cooperative complexes based on high and low molecular weight hyaluronan (HCC) compared to H-HA on human primary cells derived by pathological joints. In addition, the rheological behavior of HCC was evaluated in order to define their potential as viscosupplement gel in degenerated joints. The experiments were performed using an in vitro model of OA based on human chondrocytes and synoviocytes isolated from degenerated joints of patients hospitalized for surgical replacement. In order to assess the anti-inflammatory effects of HCC, we evaluated NF-kB, COMP-2, IL-6, and IL-8 as specific markers at the transcriptional and/or protein level. Moreover, the proliferative properties of HCC were assessed using time lapse video microscopy. We showed that chondrocytes and synoviocytes clearly presented an altered cytokine profile compatible with a severe ongoing inflammation status. H-HA and, above all, HCC significantly reduced levels of the specific biomarkers evaluated and improved cartilage healing. The rheological profile indicated HCC suitability for intra-articular injection in joint diseases. HCC viscoelastic properties and the protective/anti-inflammatory effect on human chondrocytes and synoviocytes suggest the novel HCC-based gels as a valid support for OA management.
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- 2019
32. Chondroitin Sulfate in USA Dietary Supplements in Comparison to Pharma Grade Products: Analytical Fingerprint and Potential Anti-Inflammatory Effect on Human Osteoartritic Chondrocytes and Synoviocytes
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Chiara Schiraldi, Rosario Finamore, Odile Francesca Restaino, Elisabetta Cassese, Antonietta Stellavato, Carlo Ruosi, Valentina Vassallo, Stellavato, A., Restaino, O. F., Vassallo, V., Cassese, E., Finamore, R., Ruosi, C., and Schiraldi, C.
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Inflammation biomarker ,capillary electrophoresis (HPCE) ,Keratan sulfate ,medicine.drug_class ,Pharmaceutical Science ,Pharmacology ,Article ,Anti-inflammatory ,Proinflammatory cytokine ,03 medical and health sciences ,chemistry.chemical_compound ,Pharmacy and materia medica ,0302 clinical medicine ,Glucosamine ,medicine ,Viability assay ,Chondroitin sulfate ,Anion exchange chromatography (HPAE‐PAD) ,030304 developmental biology ,Cartilage oligomeric matrix protein ,0303 health sciences ,biology ,Size exclusion chromatography (SEC‐TDA) ,Human primary cells of pathological joint ,human primary cells of pathological joints ,food supplements (FS) ,pharmaceutical grade CS ,size exclusion chromatography (SEC-TDA) ,In vitro ,inflammation biomarkers ,RS1-441 ,chemistry ,030220 oncology & carcinogenesis ,biology.protein ,anion exchange chromatography (HPAE-PAD) - Abstract
The biological activity of chondroitin sulfate (CS) and glucosamine (GlcN) food supplements (FS), sold in USA against osteoarthritis, might depend on the effective CS and GlcN contents and on the CS structural characteristics. In this paper three USA FS were compared to two pharmaceutical products (Ph). Analyses performed by HPAE-PAD, by HPCE and by SEC-TDA revealed that the CS and GlcN titers were up to −68.8% lower than the contents declared on the labels and that CS of mixed animal origin and variable molecular weights was present together with undesired keratan sulfate. Simulated gastric and intestinal digestions were performed in vitro to evaluate the real CS amount that may reach the gut as biopolymer. Chondrocytes and synoviocytes primary cells derived from human pathological joints were used to assess: cell viability, modulation of the NF-κB, quantification of cartilage oligomeric matrix protein (COMP-2), hyaluronate synthase enzyme (HAS-1), pentraxin (PTX-3) and the secreted IL-6 and IL-8 to assess inflammation. Of the three FS tested only one (US FS1) enhanced chondrocytes viability, while all of them supported synoviocytes growth. Although US FS1 proved to be less effective than Ph as it reduced NF-kB, it could not down-regulate COMP-2, HAS-1 was up-regulated but with a lower efficacy. Inflammatory cytokines were markedly reduced by Ph while a slight decrease was only found for US-FS1.
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- 2021
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33. Endothelial function and pathogenesis of endothelial dysfunction
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Antonino Tuttolomondo, Mario Daidone, Anna Cirrincione, Valerio Vassallo, Antonio Pinto, Tuttolomondo A., Cirrincione A., Vassallo V., Daidone M., and Pinto A.
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Stimuli ,Pathology ,medicine.medical_specialty ,Endothelium ,business.industry ,Immunology ,medicine.disease ,Endothelial ,Pathogenesis ,medicine.anatomical_structure ,Endothelial cell ,Dysfunction ,Pathogenesi ,Immunology and Allergy ,Medicine ,Endothelial dysfunction ,business ,Function (biology) - Abstract
Background: The crucial role of endothelium is due to the ability of endothelial cells to receive and concurrently respond to humoral and hemodynamic stimuli. The mechanisms that mediate these reactions are: the production of endothelium-derived factors and metabolizing enzymes; the expression of binding proteins and adhesive molecules; and the consequential shape changes. In fact, a wide range of anti-atherosclerotic action substances is produced by the endothelial cells with the objective of maintaining the balance between vasoconstriction and vasodilation, and inhibit or stimulate the proliferation and migration of smooth muscle cells, thrombogenesis and fibrinolysis. Smoke, age, hypercholesterolemia, hypertension, hyperglycemia, and a family history of atherosclerotic disease may induce functional and structural changes in the endothelium that imply the progressive loss of its protective role and the development of a proatherosclerotic state called endothelial dysfunction. Methods: The evaluation of the function of endothelial cells is based on the measurement of endothelial cell response to the stimulation by vasoactive substances. The endothelial response can be assessed in the coronary arteries and peripheral circulations. On our opinion, among the techniques, the most advantageous, reproducible, minimally invasive and statistically valid, as shown in many trials, is the Endo-PAT. This technique assesses endothelial function on peripheral arteries evaluating, at the level of the distal phalanx of the index finger, the vascular response to a period of ischemia in the arm induced through occlusion of the brachial artery (for five minutes) and subsequent restoration of blood flow. An additional method that is used to evaluate the state of wellness of large arteries is arterial stiffness. Arterial stiffness can be described as a reduced capability of a vessel to dilate or contract in response to pressure changes; it is defined using two parameters: compliance and distensibility. Result and Conclusion: The present review intends to clarify the mechanisms behind the development of endothelial dysfunction, and aims to show how widely proven is the correlation between endothelial dysfunction (assessed both by Endo-PAT and sphigmoCOR) and cardiovascular diseases, such as atherosclerosis, hypertension, diabetes mellitus, stroke, coronary artery disease and heart failure. Moreover, the assessment of endothelial dysfunction may represent an integral adjuvant test to identify the predisposed patients at risk for future cardiovascular accidents, as we suggest.
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- 2017
34. Endothelial function and arterial stiffness indexes in subjects with acute ischemic stroke: Relationship with TOAST subtype
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Carlo Maida, Alessandra Casuccio, Antonio Pinto, Valerio Vassallo, Rosaria Pecoraro, Irene Simonetta, Antonino Tuttolomondo, Vittoriano Della Corte, Domenico Di Raimondo, Valentina Arnao, and Tuttolomondo A, Casuccio A, Della Corte V, Maida C, Pecoraro R, Di Raimondo D, Vassallo V, Simonetta I, Arnao V, Pinto A.
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Male ,Settore MED/09 - Medicina Interna ,Subtype ,030204 cardiovascular system & hematology ,Brain Ischemia ,0302 clinical medicine ,Risk Factors ,Ischemic ,Odds Ratio ,Medicine ,Endothelial dysfunction ,Acute ischemic stroke ,Pulse wave velocity ,Stroke ,Stiffness ,Subtypes ,TOAST ,Aged, 80 and over ,Middle Aged ,Peripheral ,Cardiology ,Female ,Cardiology and Cardiovascular Medicine ,medicine.medical_specialty ,Manometry ,Hyperemia ,Pulse Wave Analysis ,03 medical and health sciences ,Vascular Stiffness ,Predictive Value of Tests ,medicine.artery ,Internal medicine ,Humans ,cardiovascular diseases ,Radial artery ,Reactive hyperemia ,Aged ,Chi-Square Distribution ,business.industry ,medicine.disease ,Surgery ,body regions ,Logistic Models ,Case-Control Studies ,Multivariate Analysis ,Arterial stiffness ,Stiffne ,Endothelium, Vascular ,business ,030217 neurology & neurosurgery - Abstract
Background and aims Only one study has examined endothelial function in subjects with acute ischemic stroke and no study has yet assessed arterial stiffness and reactive hyperemia peripheral arterial tonometry (RH-PAT) in ischemic stroke and its clinical subtypes. Our study aimed to evaluate arterial stiffness and endothelial dysfunction indexes in patients with acute ischemic stroke and the relationship between endothelial dysfunction indexes and arterial stiffness markers and stroke subtypes according to Trial of Org 10172 in Acute Stroke Treatment (TOAST) Classification. Methods We enrolled 98 patients with a diagnosis of acute ischemic stroke and 105 hospitalized patients without a diagnosis of acute ischemic stroke. Arterial stiffness analysis was conducted by applanation tonometry to record radial artery pressure waveform continuously; augmentation index (Aix) and pulse wave velocity (PWV) were calculated. The reactive hyperemia index (RHI) was assessed by peripheral arterial tonometry. Results In comparison to controls, ischemic stroke subjects had higher mean levels of PWV, Aix, and significantly lower mean RHI values. Compared to subjects with lacunar and cardioembolic stroke, those with Large Artery AtheroSclerosis (LAAS) subtype of stroke had higher median levels of PWV and significantly lower median levels of RHI. On multinomial logistic regression analysis of predictive variables of stroke subtype (lacunar vs. LAAS and lacunar vs. cardioembolic), we observed a negative association between RHI value and LAAS subtype and a negative association of PWV with cardioembolic subtype. Conclusions Our findings underline the relationship between endothelial and arterial stiffness index correlations in patients with acute ischemic stroke, also suggesting the use of a combination of PAT and arterial stiffness indexes to better categorize patients with ischemic stroke.
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- 2017
35. Immune-inflammatory and metabolic effects of high dose furosemide plus hypertonic saline solution (HSS) treatment in cirrhotic subjects with refractory ascites
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Domenico Di Raimondo, Rosaria Pecoraro, Irene Simonetta, Antonio Pinto, Danilo Di Bona, Valerio Vassallo, Eliana Gulotta, Marcello Ciaccio, Antonino Tuttolomondo, Chiara Bellia, Giuseppe Clemente, Carlo Maida, Tuttolomondo, A., Di Raimondo, D., Bellia, C., Clemente, G., Pecoraro, R., Maida, C., Simonetta, I., Vassallo, V., Di Bona, D., Gulotta, E., Ciaccio, M., and Pinto, A.
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Liver Cirrhosis ,Male ,Leptin ,Cirrhosis ,Physiology ,Peptide Hormones ,medicine.medical_treatment ,diuretic ,lcsh:Medicine ,Visfatin ,Pathology and Laboratory Medicine ,Furosemide ,Hypertonic Saline Solution ,TNF-alpha ,IL-1beta ,IL-6 ,ANP ,BNP ,cirrhosis ,refractory ascites ,paracentesis ,Biochemistry ,Gastroenterology ,0302 clinical medicine ,Recurrence ,Immune Physiology ,Medicine and Health Sciences ,Paracentesis ,Diuretics ,lcsh:Science ,Immune Response ,Saline ,Hypertonic ,Innate Immune System ,Multidisciplinary ,medicine.diagnostic_test ,Liver Diseases ,Physics ,refractory ascite ,Ascites ,Classical Mechanics ,Hematology ,Middle Aged ,Body Fluids ,Blood ,Treatment Outcome ,030220 oncology & carcinogenesis ,Physical Sciences ,Hypermetabolism ,Cytokines ,Administration, Intravenous ,Female ,030211 gastroenterology & hepatology ,Anatomy ,Inflammation Mediators ,Research Article ,medicine.drug ,paracentesi ,medicine.medical_specialty ,Inflammatory Diseases ,Immunology ,Gastroenterology and Hepatology ,Blood Plasma ,03 medical and health sciences ,Signs and Symptoms ,Diagnostic Medicine ,Osmotic Pressure ,Internal medicine ,Pressure ,medicine ,Tonicity ,Humans ,Aged ,Inflammation ,Saline Solution, Hypertonic ,business.industry ,lcsh:R ,Biology and Life Sciences ,Molecular Development ,medicine.disease ,Hormones ,Hypertonic saline ,Endocrinology ,Immune System ,lcsh:Q ,Diuretic ,business ,Biomarkers ,Developmental Biology ,cirrhosi - Abstract
Introduction Patients with chronic liver diseases are usually thin as a result of hypermetabolism and malnutrition expressed by reduced levels of leptin and impairment of other adyponectins such as visfatin. Aims We evaluated the metabolic and inflammatory effects of intravenous high-dose furosemide plus hypertonic saline solutions (HSS) compared with repeated paracentesis and a standard oral diuretic schedule, in patients with cirrhosis and refractory ascites. Methods 59 consecutive cirrhotic patients with refractory ascites unresponsive to outpatient treatment. Enrolled subjects were randomized to treatment with intravenous infusion of furosemide (125-250mg⁄bid) plus small volumes of HSS from the first day after admission until 3 days before discharge (Group A, n:38), or repeated paracentesis from the first day after admission until 3 days before discharge (Group B, n: 21). Plasma levels of ANP, BNP, Leptin, visfatin, IL-1β, TNF-a, IL-6 were measured before and after the two type of treatment. Results Subjects in group A were observed to have a significant reduction of serum levels of TNF-α, IL-1β, IL-6, ANP, BNP, and visfatin, thus regarding primary efficacy endpoints, in Group A vs. Group B we observed higher Δ-TNF-α, Δ-IL-1β, Δ-IL-6, Δ-ANP, Δ-BNP, Δ-visfatin, Δ-Leptin at discharge. Discussion Our findings underline the possible inflammatory and metabolic effect of saline overload correction in treatment of cirrhosis complications such as refractory ascites, suggesting a possible role of inflammatory and metabolic-nutritional variables as severity markers in these patients.
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- 2016
36. Submandibular gland myoepithelioma
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A Vassallo, Massimo Mesolella, Luigi Insabato, Domenico Testa, F. Galera, Vieri Galli, Testa, D, Galera, F, Insabato, Luigi, Vassallo, A, Mesolella, Massimo, Galli, V., Testa, Domenico, IN SABATO, L, Vassallo, V, and Mesolella, M
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Male ,Submandibular ,Pathology ,medicine.medical_specialty ,Myoepithelioma ,Benign Myoepithelioma ,Diagnosis, Differential ,surgery ,stomatognathic system ,medicine ,Humans ,Salivary gland ,business.industry ,Myoepithelial cell ,myoepithelioma ,General Medicine ,Anatomy ,Middle Aged ,Submandibular gland ,Parotid gland ,Submandibular Gland Neoplasms ,medicine.anatomical_structure ,Otorhinolaryngology ,Submandibular Gland Neoplasm ,Hard palate ,business - Abstract
Benign myoepithelioma is a very rare form of salivary gland tumor, composed entirely of myoepithelial cells. It accounts for approximately 1% of all salivary gland tumors and is most frequently located in the parotid gland and in the minor salivary glands of the hard palate. We describe herein the ninth reported case of myoepithelioma of the submandibular gland. Benign myoepithelioma must be differentiated from several benign and malignant epithelial and mesenchymal tumors. Immunohistochemical staining can help differentiate between these conditions, but histopathology remains the gold standard for diagnosing this neoplastic process.
- Published
- 2005
37. A probiotic multi-strain mixture combined with hydroxyectoine improves intestinal barrier function by alleviating inflammation in lipopolysaccharide stimulated differentiated Caco-2 cells.
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Dabous A, Stellavato A, Cimini D, Vassallo V, D'Agostino M, and Schiraldi C
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- Humans, Caco-2 Cells, Intestinal Mucosa metabolism, Intestinal Mucosa drug effects, Cytokines metabolism, Cytokines genetics, NF-kappa B metabolism, NF-kappa B genetics, Toll-Like Receptor 4 metabolism, Toll-Like Receptor 4 genetics, Intestinal Barrier Function, Probiotics pharmacology, Lipopolysaccharides, Inflammation drug therapy
- Abstract
Many studies have highlighted the role of probiotics in re-establishing the gut microbiota balance and preventing intestinal barrier dysfunction. In fact, they can also contribute to the upregulation of anti-inflammatory genes and the downregulation of pro-inflammatory genes, which are known to contribute to the development of the inflammatory bowel disease (IBD) syndrome. The present study aims to investigate the effect of the compatible solute hydroxyectoine (HOE), to be used as a cryopreservant but also for its intrinsic biological properties, to obtain a new formula containing three probiotic strains ( Limosilactobacillus fermentum ( L. fermentum ), Levilactobacillus brevis SP-48 ( L. brevis ), and Bifidobacterium lactis HN019 ( B. lactis )), and evaluate the latter for its ability to prevent lipopolysaccharide (LPS)-induced inflammation in an in vitro bi-dimensional model of the intestinal barrier using a Caco-2 cell monolayer. The mRNA expression levels of the inflammatory cytokines (IL-6, IL-1β, and TNF-α) were analyzed by real-time PCR. Changes in the modulation of (TLR-4 and NF- κB ) proteins were assessed by western blotting, and the effect of the HOE/PRO formula on the intestinal epithelial barrier function was also assessed using an immunofluorescence microscope for the tight junction protein zonula occludens-1 (ZO-1). This study found that this novel probiotic formulation containing HOE is capable of decreasing LPS-induced cytokines, as confirmed by the results of RT-PCR and ELISA and preserving the integrity of tight junctions as demonstrated by the relevant expression of ZO-1. HOE/PRO was shown to be effective in reducing the expression of TLR-4 and NF- κB . The latter plays a key role as an inflammation modulator as shown through experiments run with the THP-1/NF- κB reporter gene. Collectively, our data indicate that the HOE/PRO formula is a good candidate for potential preventive and/or therapeutic implementation in IBD.
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- 2024
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38. Re-traumatised: The experience of injustice whilst seeking justice.
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Paulann G, Andrew A, Moira V, and Daniel V
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- Humans, Adult, Psychological Trauma, Social Justice
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- 2024
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39. A comprehensive in vitro characterization of non-crosslinked, diverse tissue-derived collagen-based membranes intended for assisting bone regeneration.
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Barrino F, Vassallo V, Cammarota M, Lepore M, Portaccio M, Schiraldi C, and La Gatta A
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- Animals, Humans, Swine, Porosity, Horses, Cell Proliferation, Rheology, Bone Regeneration drug effects, Collagen chemistry, Collagen metabolism, Membranes, Artificial
- Abstract
Collagen-based membranes are class III-medical devices widely used in dental surgical procedures to favour bone regeneration. Here, we aimed to provide biophysical and biochemical data on this type of devices to support their optimal use and design/manufacturing. To the purpose, four commercial, non-crosslinked collagen-based-membranes, obtained from various sources (equine tendon, pericardium or cortical bone tissues, and porcine skin), were characterized in vitro. The main chemical, biophysical and biochemical properties, that have significant clinical implications, were evaluated. Membranes showed similar chemical features. They greatly differed in morphology as well as in porosity and density and showed a diverse ranking in relation to these latter two parameters. Samples highly hydrated in physiological medium (swelling-ratio values in the 2.5-6.0 range) and, for some membranes, an anisotropic expansion during hydration was, for the first time, highlighted. Rheological analyses revealed great differences in deformability (150-1500kPa G') also alerting about the marked variation in membrane mechanical behaviour upon hydration. Samples proved diverse sensitivity to collagenase, with the cortical-derived membrane showing the highest stability. Biological studies, using human-bone-derived cells, supported sample ability to allow cell proliferation and to prompt bone regeneration, while no relevant differences among membranes were recorded. Prediction of relative performance based on the findings was discussed. Overall, results represent a first wide panel of chemical/biophysical/biochemical data on collagen-based-membranes that 1) enhances our knowledge of these products, 2) aids their optimal use by providing clinicians with scientific basis for selecting products based on the specific clinical situation and 3) represents a valuable reference for optimizing their manufacturing., Competing Interests: The authors have declared that no competing interests exist., (Copyright: © 2024 Barrino et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
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- 2024
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40. Acute Pancreatitis during and after Pregnancy: A Review.
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Maringhini A, Rossi M, Patti R, Maringhini M, and Vassallo V
- Abstract
During pregnancy and in the post-partum period, several diseases may arise or become exacerbated. Acute pancreatitis is an inflammatory disease with an increasing incidence in Western countries. The incidence of acute pancreatitis during pregnancy is not different with respect to the general population, but this incidence increases in the first 2 years after delivery. Biliary sludge and stones are the most frequent aetiologies, followed by hypertriglyceridemia. Taking care of the mother and foetus through a potentially severe disease requires a team consisting of an obstetrician, a gastroenterologist, an anaesthesiologist, and a surgeon. It is necessary to monitor the health of the foetus/child and the mother during pregnancy, childbirth, and puerperium. The management of this care depends on the systemic and local complications, the severity of the acute pancreatitis, and the trimester of pregnancy. Some diagnostic tools and many drugs are not safe for foetuses, while interventional endoscopy and surgery have limitations and can only be used after an accurate evaluation of benefit/risk ratios. Despite these limitations, maternal mortality due to acute pancreatitis is low during pregnancy, mainly thanks to multidisciplinary approaches for these patients. A careful diet to prevent obesity, alcohol abstinence, routine serum triglyceride control, and breastfeeding for at least three months may prevent acute pancreatitis during and after pregnancy.
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- 2024
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41. Highly Concentrated Stabilized Hybrid Complexes of Hyaluronic Acid: Rheological and Biological Assessment of Compatibility with Adipose Tissue and Derived Stromal Cells towards Regenerative Medicine.
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Vassallo V, Di Meo C, Alessio N, La Gatta A, Ferraro GA, Nicoletti GF, and Schiraldi C
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- Humans, Adipose Tissue metabolism, Adipocytes, Cell Differentiation, Stromal Cells, Cells, Cultured, Hyaluronic Acid chemistry, Regenerative Medicine
- Abstract
Cells and extracts derived from adipose tissue are gaining increasing attention not only in plastic surgery and for aesthetic purposes but also in regenerative medicine. The ability of hyaluronan (HA) to support human adipose stromal cell (hASC) viability and differentiation has been investigated. However, the compatibility of adipose tissue with HA-based formulation in terms of biophysical and rheological properties has not been fully addressed, although it is a key feature for tissue integration and in vivo performance. In this study, the biophysical and biochemical properties of highly concentrated (45 mg/mL) high/low-molecular-weight HA hybrid cooperative complex were assessed with a further focus on the potential application in adipose tissue augmentation/regeneration. Specifically, HA hybrid complex rheological behavior was observed in combination with different adipose tissue ratios, and hyaluronidase-catalyzed degradation was compared to that of a high-molecular-weight HA (HHA). Moreover, the HA hybrid complex's ability to induce in vitro hASCs differentiation towards adipose phenotype was evaluated in comparison to HHA, performing Oil Red O staining and analyzing gene/protein expression of PPAR-γ, adiponectin, and leptin. Both treatments supported hASCs differentiation, with the HA hybrid complex showing better results. These outcomes may open new frontiers in regenerative medicine, supporting the injection of highly concentrated hybrid formulations in fat compartments, eventually enhancing residing staminal cell differentiation and improving cell/growth factor persistence towards tissue regeneration districts.
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- 2024
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42. Adult Mesenchymal Stem Cells in Presence of Glycosaminoglycans.
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Vassallo V, Di Meo C, and Schiraldi C
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- Humans, Hydrogels chemistry, Cell Culture Techniques methods, Adult Stem Cells cytology, Adult Stem Cells metabolism, Cell Survival, Tissue Scaffolds chemistry, Cells, Cultured, Animals, Tissue Engineering methods, Cell Proliferation, Biocompatible Materials chemistry, Adult, Glycosaminoglycans metabolism, Mesenchymal Stem Cells cytology, Mesenchymal Stem Cells metabolism, Cell Differentiation
- Abstract
The application of adult mesenchymal stem cells (MSCs) in the field of tissue regeneration is of increasing interest to the scientific community. In particular, scaffolds and/or hydrogel based on glycosaminoglycans (GAGs) play a pivotal role due to their ability to support the in vitro growth and differentiation of MSCs toward a specific phenotype. Here, we describe different possible approaches to develop GAGs-based biomaterials, hydrogel, and polymeric viscous solutions in order to assess/develop a suitable biomimetic environment. To sustain MSCs viability and promote their differentiation for potential therapeutic applications., (© 2024. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature.)
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- 2024
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43. Correction: Vassallo et al. Hyaluronic Acid-Based Injective Medical Devices: In Vitro Characterization of Novel Formulations Containing Biofermentative Unsulfated Chondroitin or Extractive Sulfated One with Cyclodextrins. Pharmaceuticals 2023, 16 , 1429.
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Vassallo V, Di Meo C, Toro G, Alfano A, Iolascon G, and Schiraldi C
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In the original publication [...].
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- 2023
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44. Hyaluronic Acid-Based Injective Medical Devices: In Vitro Characterization of Novel Formulations Containing Biofermentative Unsulfated Chondroitin or Extractive Sulfated One with Cyclodextrins.
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Vassallo V, Di Meo C, Toro G, Alfano A, Iolascon G, and Schiraldi C
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Currently, chondroitin sulfate (CS) and hyaluronic acid (HA) pharma-grade forms are used for osteoarthritis (OA) management, CS as an oral formulations component, and HA as intra-articular injective medical devices. Recently, unsulfated chondroitin, obtained through biofermentative (BC) manufacturing, has been proposed for thermally stabilized injective preparation with HA. This study aimed to highlight the specific properties of two commercial injective medical devices, one based on HA/BC complexes and the other containing HA, extractive CS, and cyclodextrins, in order to provide valuable information for joint disease treatments. Their biophysical and biomechanical features were assayed; in addition, biological tests were performed on human pathological chondrocytes. Rheological measurements displayed similar behavior, with a slightly higher G' for HA/BC, which also proved superior stability to the hyaluronidase attack. Both samples reduced the expression of specific OA-related biomarkers such as NF-kB, interleukin 6 (IL-6), and metalloprotease-13 (MMP-13). Moreover, HA/BC better ensured chondrocyte phenotype maintenance by up-regulating collagen type 2A1 (COLII) and aggrecan (AGN). Notwithstanding, the similarity of biomolecule components, the manufacturing process, raw materials characteristics, and specific concentration resulted in affecting the biomechanical and, more interestingly, the biochemical properties, suggesting potential better performances of HA/BC in joint disease treatment.
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- 2023
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45. Molecular Fingerprint of Human Pathological Synoviocytes in Response to Extractive Sulfated and Biofermentative Unsulfated Chondroitins.
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Vassallo V, Stellavato A, Russo R, Cimini D, Valletta M, Alfano A, Pedone PV, Chambery A, and Schiraldi C
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- Humans, Animals, Cattle, Swine, Chondroitin Sulfates pharmacology, Chondroitin Sulfates metabolism, Sulfates, Proteomics, Tandem Mass Spectrometry, Biomarkers, Synoviocytes metabolism, Osteoarthritis metabolism
- Abstract
Pharma-grade extractive chondroitin sulfate (CS) is widely used for osteoarthritis (OA) treatment. Recently, unsulfated biofermentative chondroitin (BC) proved positive effects in OA in vitro model. This study, based on primary pathological human synoviocytes, aimed to analyze, by a multiplex assay, a panel of OA-related biomarkers in response to short-term treatments with bovine (CS
b ), pig (CSp ) and fish (CSf ) chondroitins, in comparison to BC. As expected, all samples had anti-inflammatory properties, however CSb , CSf and especially BC affected more cytokines and chemokines. Based on these results and molecular weight similarity, CSf and BC were selected to further explore the synoviocytes' response. In fact, Western blot analyses showed CSf and BC were comparable, downregulating OA-related biomarkers such as the proteins mTOR, NF-kB, PTX-3 and COMP-2. Proteomic analyses, performed by applying a nano-LC-MS/MS TMT isobaric labelling-based approach, displayed the modulation of both common and distinct molecules to chondroitin treatments. Thus, CSf and BC modulated the biological mediators involved in the inflammation cascade, matrix degradation/remodeling, glycosaminoglycans' synthesis and cellular homeostasis. This study helps in shedding light on different molecular mechanisms related to OA disease that may be potentially affected not only by animal-source chondroitin sulfate but also by unsulfated biofermentative chondroitin.- Published
- 2022
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46. Evaluation of novel biomaterials for cartilage regeneration based on gelatin methacryloyl interpenetrated with extractive chondroitin sulfate or unsulfated biotechnological chondroitin.
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Vassallo V, Tsianaka A, Alessio N, Grübel J, Cammarota M, Tovar GEM, Southan A, and Schiraldi C
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- Biocompatible Materials metabolism, Biocompatible Materials pharmacology, Cartilage physiology, Hydrogels metabolism, Hydrogels pharmacology, Methacrylates, Tissue Engineering, Chondroitin Sulfates pharmacology, Gelatin metabolism, Gelatin pharmacology
- Abstract
Gelatin is widely proposed as scaffold for cartilage tissue regeneration due to its high similarities to the extracellular matrix. However, poor mechanical properties and high sensitivity to enzymatic degradation encouraged the scientific community to develop strategies to obtain better performing hydrogels. Gelatin networks, specifically gelatin-methacryloyl (GM), have been coupled to hyaluronan or chondroitin sulfate (CS). In this study, we evaluated the biophysical properties of an innovative photocross-linked hydrogel based on GM with the addition of CS or a new unsulfated biotechnological chondroitin (BC). Biophysical, mechanical, and biochemical characterization have been assessed to compare GM hydrogels to the chondroitin containing networks. Moreover, mesenchymal stem cells (MSCs) were seeded on these biomaterials in order to evaluate the differentiation toward the chondrocyte phenotype in 21 days. Rheological characterization showed that both CS and BC increased the stiffness (G' was about 2-fold), providing a stronger rigid matrix, with respect to GM alone. The biological tests confirmed the onset of MSCs differentiation process starting from 14 days of in vitro culture. In particular, the combination GM + BC resulted to be more effective than GM + CS in the up-regulation of key genes such as collagen type 2A1 (COLII), SOX-9, and aggrecan). In addition, the scanning microscope analyses revealed the cellular adhesion on materials and production of extracellular vesicles. Immunofluorescence staining confirmed an increase of COLII in presence of both chondroitins. Finally, the outcomes suggest that BC entangled within cross-linked GM matrix may represent a promising new biomaterial with potential applications in cartilage regeneration., (© 2022 The Authors. Journal of Biomedical Materials Research Part A published by Wiley Periodicals LLC.)
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- 2022
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47. Correction to: In vitro assessment of nutraceutical compounds and novel nutraceutical formulations in a liver-steatosis-based model.
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Stellavato A, Pirozzi AVA, de Novellis F, Scognamiglio I, Vassallo V, Giori AM, De Rosa M, and Schiraldi C
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- 2022
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48. Hyaluronan-Based Gel Promotes Human Dental Pulp Stem Cells Bone Differentiation by Activating YAP/TAZ Pathway.
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La Noce M, Stellavato A, Vassallo V, Cammarota M, Laino L, Desiderio V, Del Vecchio V, Nicoletti GF, Tirino V, Papaccio G, Schiraldi C, and Ferraro GA
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- Biomarkers metabolism, Cell Separation, Cells, Cultured, Gene Expression Regulation drug effects, Humans, Hyaluronan Receptors metabolism, Integrin-Binding Sialoprotein genetics, Integrin-Binding Sialoprotein metabolism, Osteocalcin genetics, Osteocalcin metabolism, Osteogenesis drug effects, Osteogenesis genetics, Osteopontin genetics, Osteopontin metabolism, Stem Cells drug effects, Stem Cells metabolism, Bone and Bones cytology, Cell Differentiation drug effects, Cell Differentiation genetics, Dental Pulp cytology, Hyaluronic Acid pharmacology, Signal Transduction, Stem Cells cytology, Transcriptional Coactivator with PDZ-Binding Motif Proteins metabolism, YAP-Signaling Proteins metabolism
- Abstract
Background: Hyaluronans exist in different forms, accordingly with molecular weight and degree of crosslinking. Here, we tested the capability to induce osteogenic differentiation in hDPSCs (human dental pulp stem cells) of three hyaluronans forms: linear pharmaceutical-grade hyaluronans at high and (HHA) low molecular weight (LHA) and hybrid cooperative complexes (HCC), containing both sizes., Methods: hDPSCs were treated with HHA, LHA, HCC for 7, 14 and 21 days. The effects of hyaluronans on osteogenic differentiation were evaluated by qRT-PCR and WB of osteogenic markers and by Alizarin Red S staining. To identify the involved pathway, CD44 was analyzed by immunofluorescence, and YAP/TAZ expression was measured by qRT-PCR. Moreover, YAP/TAZ inhibitor-1 was used, and the loss of function of YAP/TAZ was evaluated by qRT-PCR, WB and immunofluorescence., Results: We showed that all hyaluronans improves osteogenesis. Among these, HCC is the main inducer of osteogenesis, along with overexpression of bone related markers and upregulating CD44. We also found that this biological process is subordinate to the activation of YAP/TAZ pathway., Conclusions: We found that HA's molecular weight can have a relevant impact on HA performance for bone regeneration, and we unveil a new molecular mechanism by which HA acts on stem cells.
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- 2021
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49. Effects of intravenous furosemide plus small-volume hypertonic saline solutions on markers of heart failure.
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Tuttolomondo A, Maida C, Casuccio A, Di Raimondo D, Fonte R, Vassallo V, Puleo MG, Di Chiara T, Mogavero A, Del Cuore A, Daidone M, Ortello A, and Pinto A
- Subjects
- Biomarkers, Diuretics, Humans, Furosemide therapeutic use, Heart Failure drug therapy, Saline Solution, Hypertonic therapeutic use
- Abstract
Aims: We sought to compare the effects of furosemide + hypertonic saline solution (HSS) treatment in patients with acute decompensated heart failure in comparison with furosemide alone and the response in a compensated state after an acute saline load with regard to serum levels of heart failure biomarkers., Methods and Results: We enrolled 141 patients with acute decompensated heart failure with reduced ejection fraction admitted to our Internal Medicine ward from March 2017 to November 2019. A total of 73 patients were randomized to treatment with i.v. high-dose furosemide plus HSS, whereas 68 patients were randomized to i.v. high-dose furosemide alone. Patients treated with furosemide plus HSS compared with controls treated with furosemide alone showed a comparable degree of reduction in the serum levels of interleukin (IL)-6, soluble suppression of tumorigenicity 2 (sST2), and N-terminal pro-brain natriuretic peptide (NT-proBNP) in the 'between-group' analysis. Nevertheless, patients treated with high-dose furosemide + HSS showed significantly higher absolute delta values of IL-6 (2.3 ± 1.2 vs. 1.7 ± 0.9, P < 0.0005, and 2.0 ± 0.8 vs. 1.85 ± 1.1, P = 0.034), sST2 (41.2 ± 8.6 vs. 27.9 ± 7.6, P < 0.0005, and 37.1 ± 6.6 vs. 28.4 ± 6.7, P < 0.0005), high-sensitivity troponin T (0.03 ± 0.02 vs. 0.02 ± 0.01, P = 0.001, and 0.03 ± 0.02 vs. 0.02 ± 0.01, P = 0.009), NT-proBNP (7237 ± 7931 vs. 3244 ± 4159, P < 0.005, and 5381 ± 4829 vs. 4466 ± 4332, P = 0.004), and galectin-3 (15.7 ± 3.2 ng/mL vs. 11.68 ± 1.9 ng/mL, P < 0.0005, and 16.7 ± 3.9 ng/mL vs. 11.8 ± 2.4 ng/mL, P < 0.0005) than patients treated with furosemide alone. After acute saline load, patients treated with i.v. furosemide + HSS in comparison with subjects treated with furosemide alone showed a significantly lower increase in the serum concentrations of IL-6 (-0.26 ± 0.42 pg/mL vs. -1.43 ± 0.86 pg/mL, P < 0.0005), high-sensitivity troponin T (0 vs. -0.02 ± 0.02 ng/mL, P < 0.0005), sST2 (-8.5 ± 5.9 ng/mL vs. -14.6 ± 6.2 ng/mL, P < 0.0005), galectin-3 (-2.1 ± 1.5 ng/mL vs. -7.1 ± 3.6 ng/mL, P < 0.0005), and NT-proBNP (77 ± 1373 vs. -1706 ± 2259 pg/mL, P < 0.0005)., Conclusions: Our findings concerning a comparable degree of reduction in the serum levels of three cardinal biomarkers indicate that a reduction in serum heart failure markers is not linked to the higher degree of congestion relief with a more rapid achievement of a clinical compensation state. This issue may have possible benefits on clinical practice concerning its therapeutic effects over and beyond the simple amelioration of clinical congestion signs and symptoms. Nevertheless, our findings of higher delta values after treatment with i.v. furosemide plus HSS indicate a possible higher efficacy by means of modulation of the stretching and fibrosis mechanisms., (© 2021 The Authors. ESC Heart Failure published by John Wiley & Sons Ltd on behalf of European Society of Cardiology.)
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- 2021
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50. Hyaluronan and Derivatives: An In Vitro Multilevel Assessment of Their Potential in Viscosupplementation.
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La Gatta A, Stellavato A, Vassallo V, Di Meo C, Toro G, Iolascon G, and Schiraldi C
- Abstract
In this research work, viscosupplements based on linear, derivatized, crosslinked and complexed HA forms were extensively examined, providing data on the hydrodynamic parameters for the water-soluble-HA-fraction, rheology, sensitivity to enzymatic hydrolysis and capacity to modulate specific biomarkers' expression in human pathological chondrocytes and synoviocytes. Soluble HA ranged from 0 to 32 mg/mL and from 150 to 1330 kDa MW. The rheological behavior spanned from purely elastic to viscoelastic, suggesting the diversity of the categories that are suitable for restoring specific/different features of the healthy synovial fluid. The rheological parameters were reduced in a diverse manner upon dilution and hyaluronidases action, indicating different durations of the viscosupplementation effect. Bioactivity was found for all the samples, increasing the expression of different matrix markers (e.g., hyaluronan-synthase); however, the hybrid cooperative complexes performed better in most of the experiments. Hybrid cooperative complexes improved COLII mRNA expression (~12-fold increase vs. CTR), proved the most effective at preserving cell phenotype. In addition, in these models, the HA samples reduced inflammation. IL-6 was down-regulated vs. CTR by linear and chemically modified HA, and especially by hybrid complexes. The results represent the first comprehensive panel of data directly comparing the diverse HA forms for intra-articular injections and provide valuable information for tailoring products' clinical use as well as for designing new, highly performing HA-formulations that can address specific needs.
- Published
- 2021
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