Clinical efficacy of a topical lactic acid bacterial microbiome in chronic rhinosinusitis: A randomized controlled trial

Anders Mårtensson, Milad Abolhalaj, Malin Lindstedt, Anette Mårtensson, Tobias Olofsson, Alejandra Vasquez, Lennart Greiff, Anders Cervin

Research output: Contribution to journalArticlepeer-review

Abstract

Objective
A locally disturbed commensal microbiome might be an etiological factor in chronic rhinosinusitis (CRS) in general and in CRS without nasal polyps (CRSsNP) in particular. Lactic acid bacteria (LAB) have been suggested to restore commensal microbiomes. A honeybee LAB microbiome consisting of various lactobacilli and bifidobacteria have been found potent against CRS pathogens in vitro. Recently, we examined effects of single nasal administrations of this microbiome in healthy subjects and found it inert. In this study, we examined effects of repeated such administrations in patients with CRSsNP.

Study Design
The study was of a randomized, double-blinded, crossover, and sham-controlled design.

Methods
Twenty patients received 2 weeks' treatment administered using a nasal spray-device. The subjects were monitored with regard to symptoms (SNOT-22 questionnaire, i.e., the primary efficacy variable), changes to their microbiome, and inflammatory products (IL-6, IL-8, TNF-, IL-8,a, and MPO) in nasal lavage fluids.

Results
Neither symptom scores, microbiological explorations, nor levels of inflammatory products in nasal lavage fluids were affected by LAB (c.f. sham).

Conclusion
Two weeks' nasal administration of a honeybee LAB microbiome to patients with CRSsNP is well tolerated but affects neither symptom severity nor the microbiological flora/local inflammatory activity.

Level of Evidence
1b
Original languageEnglish
Pages (from-to)410-416
JournalLaryngoscope Investigative Otolaryngology
Volume2
Issue number6
DOIs
Publication statusPublished - 2017 Dec 26

Subject classification (UKÄ)

  • Otorhinolaryngology

Fingerprint

Dive into the research topics of 'Clinical efficacy of a topical lactic acid bacterial microbiome in chronic rhinosinusitis: A randomized controlled trial'. Together they form a unique fingerprint.

Cite this