- 2019-03-01
- European review for medical and pharmacological sciences 23(1 Suppl)
- R De Grandi
- M Bottagisio
- S Di Girolamo
- A Bidossi
- E De Vecchi
- L Drago
Study Design
- Type
- Clinical Trial
- Population
- healthy subjects
- Methods
- Metagenomic identification and quantification of bacterial abundances in healthy subjects by Ion Torrent Personal Machine; nasal swabs sampled one, two and four weeks after seven days of treatment with Rinogermina.
- Duration
- 7 days
- Funding
- Unclear
Objective
Probiotics S. salivarius 24SMBc and S. oralis 89a comprised in the nasal spray Rinogermina are known to exert inhibition of harmful pathogens and ameliorate the outcome of patients with chronic upper airways infections. In this study, for the first time, the effect of this formulation on the modulation of the microflora of healthy subjects was evaluated, with particular interest on pathobionts and pathogens present.Patients and methods
Metagenomic identification and quantification of bacterial abundances in healthy subjects were carried out by means of Ion Torrent Personal Machine. In particular, nasal swabs were sampled one, two and four weeks after seven days of treatment with Rinogermina.Results
The modulation of the abundance of pathobionts and pathogenic species (i.e., Corynebacterium diphtheriae, Haemophilus parainfluenzae, Moraxella catarrhalis, Prevotella denticola, Prevotella melaninogenica, Rothia dentocariosa, Staphylococcus aureus and Streptococcus pseudopneumoniae) was characterized and a significant temporary decrease in their presence was identified.Conclusions
The beneficial effects of S. salivarius 24SMBc and S. oralis 89a nasal intake was assessed but seemed to be restricted in specific temporal windows. Thus it would be interesting to evaluate also this positive impact of longer administration of this probiotic formulation.