PMID- 36405454 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221122 IS - 1809-9777 (Print) IS - 1809-4864 (Electronic) IS - 1809-4864 (Linking) VI - 26 IP - 4 DP - 2022 Oct TI - Role of Probiotics in Patients with Allergic Rhinitis: A Systematic Review of Systematic Reviews. PG - e744-e752 LID - 10.1055/s-0042-1749370 [doi] AB - Introduction Allergic rhinitis (AR) is estimated to affect up to 30% of the world population. With the rise in cases, newer treatment modalities have been explored. Probiotics have shown to reduce symptoms of AR and improve quality of life. A few systematic reviews have been published aiming to assess the role of probiotics in AR. Objectives To consolidate the recent evidence with an overview of systematic reviews by extracting data regarding subjective outcomes (from quality of life questionnaires, the Total Nasal Symptom Score, the Total Ocular Symptom Score, the Daily Total Symptom Score, the incidence of AR, and the Rhinitis Total Symptom Score) and objective outcomes (levels of antigen-specific immunoglobulin E [IgE], total IgE, interleukin 10 [IL-10], interferon gamma [IFNG], eosinophil, and the T helper 1/T helper 2 [Th1/Th2] ratio). Data Synthesis We conducted a literature search on the PubMed, EBSCO CINAHL, EBSCO Dentistry & Oral Sciences Source, and Cochrane Library up to April 14, 2020. The qualitative assessment was performed using the Assessing the Methodological Quality of Systematic Reviews (AMSTAR-2) tool. A total of 419 titles were screened, and 3 systematic reviews met our eligibility criteria. Probiotics in the treatment of AR have been shown to improve quality of life, the total nasal and ocular symptom scores, the daily total symptom scores and Th1/Th2 ratio. No difference was ascertained for rhinitis total symptom score, and the rates of antigen-specific IgE, total IgE, IL-10, INFG and eosinophil. Conclusion The present review showed that there is considerable evidence that probiotics are useful in the treatment of AR. Further randomized trials targeting the limitations of the currently-available evidence can help ascertain the usefulness of probiotics in cases of AR. CI - Fundacao Otorrinolaringologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. ( https://creativecommons.org/licenses/by-nc-nd/4.0/ ). FAU - Iftikhar, Haissan AU - Iftikhar H AUID- ORCID: 0000-0003-3266-4015 AD - Department of Otolaryngology, Rawal Institute of Health Sciences, Islamabad, Pakistan. FAU - Awan, Muhammad Ozair AU - Awan MO AUID- ORCID: 0000-0002-0513-2366 AD - Department of Surgery, Aga Khan University Medical College, Karachi, Pakistan. FAU - Awan, Muhammad Sohail AU - Awan MS AUID- ORCID: 0000-0001-8323-7350 AD - Department of Surgery, Aga Khan University Medical College, Karachi, Pakistan. FAU - Mustafa, Khawaja AU - Mustafa K AUID- ORCID: 0000-0002-9096-1213 AD - Department of Surgery, Aga Khan University Medical College, Karachi, Pakistan. FAU - Das, Jai K AU - Das JK AUID- ORCID: 0000-0002-2966-7162 AD - Division of Women and Child Health, Aga Khan University, Karachi, Pakistan. FAU - Ahmed, Shahzada Khuram AU - Ahmed SK AUID- ORCID: 0000-0002-1726-1261 AD - Department of Otolaryngology, Queen Elizabeth Hospital, Birmingham, United Kingdom. LA - eng PT - Journal Article PT - Review DEP - 20220617 PL - Brazil TA - Int Arch Otorhinolaryngol JT - International archives of otorhinolaryngology JID - 101637652 PMC - PMC9668414 OTO - NOTNLM OT - allergic rhinitis OT - nasal symptom score OT - probiotics OT - quality of life OT - rhinosinusitis COIS- Conflict of Interests The authors have no conflict of interests to declare. EDAT- 2022/11/22 06:00 MHDA- 2022/11/22 06:01 PMCR- 2022/06/01 CRDT- 2022/11/21 03:57 PHST- 2021/10/30 00:00 [received] PHST- 2022/04/17 00:00 [accepted] PHST- 2022/11/21 03:57 [entrez] PHST- 2022/11/22 06:00 [pubmed] PHST- 2022/11/22 06:01 [medline] PHST- 2022/06/01 00:00 [pmc-release] AID - 220714 [pii] AID - 10.1055/s-0042-1749370 [doi] PST - epublish SO - Int Arch Otorhinolaryngol. 2022 Jun 17;26(4):e744-e752. doi: 10.1055/s-0042-1749370. eCollection 2022 Oct.