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| Content Provider | Springer Nature Link |
|---|---|
| Author | Santagati, M. Scillato, M. Muscaridola, N. Metoldo, V. Mantia, I. Stefani, S. |
| Copyright Year | 2015 |
| 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 × 109 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 105 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. |
| Starting Page | 2075 |
| Ending Page | 2080 |
| Page Count | 6 |
| File Format | |
| ISSN | 09349723 |
| Journal | European Journal of Clinical Microbiology & Infectious Diseases |
| Volume Number | 34 |
| Issue Number | 10 |
| e-ISSN | 14354373 |
| Language | English |
| Publisher | Springer Berlin Heidelberg |
| Publisher Date | 2015-07-24 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Medical Microbiology Internal Medicine |
| Content Type | Text |
| Resource Type | Article |
| Subject | Infectious Diseases Microbiology (medical) |
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