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Santagati M, Scillato M, Muscaridola N, Metoldo V, La Mantia I, Stefani S. Colonization, safety, and tolerability study of the Streptococcus salivarius 24SMBc nasal spray for its application in upper respiratory tract infections. Eur J Clin Microbiol Infect Dis 2015. [PMID: 26205666 DOI: 10.1007/s10096-015-2454-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Streptococcus salivarius, a non-pathogenic species and the predominant colonizer of the oral microbiota, finds a wide application in the prevention of upper respiratory tract infections, also reducing the frequency of their main pathogens. In this pilot study, the primary objective was to evaluate the safety and tolerability of a nasal spray, S. salivarius 24SMBc, as a medical device in a clinical study involving 20 healthy adult subjects. The secondary aim was to determine the ability of colonization assessed by molecular fingerprinting. Twenty healthy adult subjects, aged between 30 and 54 years, without a medical history of recurrent otitis media, were enrolled. All patient characteristics fulfilled the inclusion criteria. All subjects were treated daily for 3 days with the nasal spray containing S. salivarius 24SMBc at a concentration of 5 × 10(9) colony-forming units (CFU)/ml. The persistence of S. salivarius in the nasopharynx was investigated by the antagonism test and random amplified polymorphic DNA polymerase chain reaction (RAPD-PCR). The tolerability and safety were clinically assessed by clinical examinations during treatment. Our results demonstrate the capability of S. salivarius 24SMBc to colonize the rhinopharynx tissues in 95% of subjects and persist in 55% of them after 6 days from the last dose of the formulation, maintaining a concentration of 10(5) CFU/ml. The treatment was well tolerated by all healthy patients and no adverse effects were found. The topical application of streptococcal probiotics is a relatively undeveloped field but is becoming an attractive approach for both prevention and therapy, especially for pediatric age patients. S. salivarius 24SMBc possess characteristics making this strain suitable for use in bacteriotherapy.
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Affiliation(s)
- M Santagati
- LabMMAR, Department of Biomedical and Biotechnological Sciences, Section of Microbiology, University of Catania, Via Androne 81, 95124, Catania, Italy.
| | - M Scillato
- LabMMAR, Department of Biomedical and Biotechnological Sciences, Section of Microbiology, University of Catania, Via Androne 81, 95124, Catania, Italy
| | - N Muscaridola
- LabMMAR, Department of Biomedical and Biotechnological Sciences, Section of Microbiology, University of Catania, Via Androne 81, 95124, Catania, Italy
| | - V Metoldo
- LabMMAR, Department of Biomedical and Biotechnological Sciences, Section of Microbiology, University of Catania, Via Androne 81, 95124, Catania, Italy
| | - I La Mantia
- Department of Medical Sciences, Surgical and Advanced Technologies, GF Ingrassia, University of Catania, Catania, Italy
| | - S Stefani
- LabMMAR, Department of Biomedical and Biotechnological Sciences, Section of Microbiology, University of Catania, Via Androne 81, 95124, Catania, Italy
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Saracino A, Muscaridola N, Cifarelli RA, Stallone G, Grandaliano G, Santarsia G. Multidrug-resistance 1 gene single-nucleotide polymorphisms do not influence long-term graft survival after kidney transplantation. Transplant Proc 2014; 46:2214-9. [PMID: 25242754 DOI: 10.1016/j.transproceed.2014.07.051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND The single-nucleotide polymorphisms (SNPs) of the Multidrug resistance 1 (MDR1) gene have been associated with changes in the pharmacokinetics of cyclosporine (CsA) and tacrolimus (FK506). Our aim was investigate the influence of MDR1 SNPs on long-term graft survival in a population of kidney transplant recipients. METHODS We retrospectively analyzed 154 patients; they were genotyped for the SNPs C1236T, G2677T/A, and C3435T and evaluated for the influence of those 3 SNPs on CsA or FK506 pharmacokinetics and on long-term graft survival. RESULTS Thirty-one patients were wild-type for C1236T, G2677T/A, and C3435T polymorphisms (group A), 76 patients had ≥1 heterozygous mutations (group B), and 47 patients had ≥1 homozygous mutations (group C). CsA-receiving patients in group C needed a significantly higher oral dose than patients in groups B and A (P=.02). No differences in FK506 trough level nor in oral dose taken were observed in FK506-receiving patients. Kaplan-Meier analysis did not show survival differences in the 3 groups, and Cox proportional hazards model confirmed that the MDR1 SNPs did not represent a risk for graft loss. CONCLUSIONS Pretransplantation determination of MDR1 SNPs may be helpful to optimize the starting dose of CsA but can not predict long-term graft survival.
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Affiliation(s)
- A Saracino
- Basilicata Referral Center for Transplantation Hospital of Matera, Matera, Italy.
| | - N Muscaridola
- Nephrology Dialysis and Transplantation Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - R A Cifarelli
- X-Life Metapontum Agrobios, Hospital of Matera, Matera, Italy
| | - G Stallone
- Nephrology Dialysis and Transplantation Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - G Grandaliano
- Nephrology Dialysis and Transplantation Unit, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy
| | - G Santarsia
- Basilicata Referral Center for Transplantation Hospital of Matera, Matera, Italy
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Chiarappa P, Bruno M, D'Amico C, Muscaridola N, Daprile R, Paradiso A, Mangia A. PP86 Sister chromatid exchanges as marker of genomic instability in familial breast cancer patients. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)72149-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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