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Di Ruscio M, Variola A, Angheben A, Resimini S, Geccherle A, Ruffo G, Barugola G. A Challenging Colectomy for Acute Severe Ulcerative Colitis Complicated by COVID-19. Inflamm Bowel Dis 2020; 26:e120-e122. [PMID: 32626898 PMCID: PMC7529110 DOI: 10.1093/ibd/izaa186] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
We present the case of a patient with acute severe ulcerative colitis and concomitant COVID-19-related pneumonia who required a colectomy after a prolonged and complicated hospitalization during the initial stages of the SARS-CoV-2 pandemic, before the establishment of official procedures.
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Affiliation(s)
- Mirko Di Ruscio
- IBD Unit, Istituto di Ricovero e Cura a Carattere Scientifico Sacro Cuore Don Calabria, Negrar di Valpolicella (Verona), Italy,Address correspondence to: Mirko Di Ruscio, IBD Unit, Istituto di Ricovero e Cura a Carattere Scientifico Sacro Cuore Don Calabria, Via Don A. Sempreboni 5, 37024 Negrar di Valpolicella (Verona), Italy (; )
| | - Angela Variola
- IBD Unit, Istituto di Ricovero e Cura a Carattere Scientifico Sacro Cuore Don Calabria, Negrar di Valpolicella (Verona), Italy
| | - Andrea Angheben
- Department of Infectious Tropical Diseases and Microbiology, Istituto di Ricovero e Cura a Carattere Scientifico Sacro Cuore Don Calabria, Negrar di Valpolicella (Verona), Italy
| | - Silvia Resimini
- Clinical Research Unit, Istituto di Ricovero e Cura a Carattere Scientifico Sacro Cuore Don Calabria, Negrar di Valpolicella (Verona), Italy
| | - Andrea Geccherle
- IBD Unit, Istituto di Ricovero e Cura a Carattere Scientifico Sacro Cuore Don Calabria, Negrar di Valpolicella (Verona), Italy
| | - Giacomo Ruffo
- Department of Surgery, Istituto di Ricovero e Cura a Carattere Scientifico Sacro Cuore Don Calabria, Negrar di Valpolicella (Verona), Italy
| | - Giuliano Barugola
- Department of Surgery, Istituto di Ricovero e Cura a Carattere Scientifico Sacro Cuore Don Calabria, Negrar di Valpolicella (Verona), Italy
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Bianchi F, Flisi S, Careri M, Riboni N, Resimini S, Sala A, Conti V, Mattarozzi M, Taddei S, Spadini C, Basini G, Grolli S, Cabassi CS, Ramoni R. Vertebrate odorant binding proteins as antimicrobial humoral components of innate immunity for pathogenic microorganisms. PLoS One 2019; 14:e0213545. [PMID: 30901336 PMCID: PMC6430387 DOI: 10.1371/journal.pone.0213545] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 02/23/2019] [Indexed: 12/13/2022] Open
Abstract
The bacterium Pseudomonas aeruginosa (PA) and the yeast Candida albicans (CA) are pathogens that cohabit the mucosa of the respiratory tracts of animals and humans. Their virulence is largely determined by chemical communication driven by quorum sensing systems (QS), and the cross perception of their quorum sensing molecules (QSM) can modulate the prevalence of one microorganism over the other. Aiming to investigate whether some of the protein components dissolved in the mucus layering the respiratory mucosa might interfere with virulence and cross-communication of these, and eventually other microorganisms, ligand binding assays were carried out to test the scavenging potential of the bovine and porcine forms of the Lipocalin odorant binding protein (OBP) for several QSMs (farnesol, and acylhomoserine lactones), and for pyocyanin, a toxin produced by PA. In addition, the direct antimicrobial activity of the OBPs was tested by time kill assay (TKA) against CA, PA and other bacteria and yeasts. The positivity of all the ligand binding assays and the antimicrobial activity determined for CA, and for some of the other microorganisms tested, let hypothesize that vertebrate OBPs might behave as humoral components of innate immunity, active against pathogenic bacteria and fungi. In addition, TKAs with mutants of bovine OBP with structural properties different from those of the native form, and with OBP forms tagged with histidines at the amino terminal, provided information about the mechanisms responsible of their antimicrobial activity and suggested possible applications of the OBPs as alternative or co-adjuvants to antibiotic therapeutic treatments.
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Affiliation(s)
- Federica Bianchi
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Sara Flisi
- Department of Veterinary Sciences, University of Parma, Parma, Italy
| | - Maria Careri
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Nicolò Riboni
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Silvia Resimini
- Department of Veterinary Sciences, University of Parma, Parma, Italy
| | - Andrea Sala
- Department of Veterinary Sciences, University of Parma, Parma, Italy
| | - Virna Conti
- Department of Veterinary Sciences, University of Parma, Parma, Italy
| | - Monica Mattarozzi
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Simone Taddei
- Department of Veterinary Sciences, University of Parma, Parma, Italy
| | - Costanza Spadini
- Department of Veterinary Sciences, University of Parma, Parma, Italy
| | - Giuseppina Basini
- Department of Veterinary Sciences, University of Parma, Parma, Italy
| | - Stefano Grolli
- Department of Veterinary Sciences, University of Parma, Parma, Italy
| | | | - Roberto Ramoni
- Department of Veterinary Sciences, University of Parma, Parma, Italy
- * E-mail: (RR); (CSC)
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