Journal article
Preliminary investigation of a hypertonic saline nasal rinse as a hygienic intervention in dairy workers
Journal of occupational and environmental hygiene, Vol.20(1), pp.14-22
2023
DOI: 10.1080/15459624.2022.2137297
PMCID: PMC10958439
PMID: 36260509
Abstract
Livestock workers experience an increased burden of bioaerosol-induced respiratory disease including a high prevalence of rhinosinusitis. Dairy operations generate bioaerosols spanning the inhalable size fraction (0–100 μm) containing bacterial constituents such as endotoxin. Particles with an aerodynamic diameter between 10 and 100 μm are known to deposit in the nasopharyngeal region and likely affect the upper respiratory tract. We evaluated the effectiveness of a hypertonic saline nasal lavage in reducing inflammatory responses in dairy workers from a high-volume dairy operation. Inhalable personal breathing zone samples and pre-/post-shift nasal lavage samples from each participant over five consecutive days were collected. The treatment group (n = 5) received hypertonic saline while the control group (n = 5) received normotonic saline. Personal breathing zone samples were analyzed for particulate concentrations and endotoxin using gravimetric and enzymatic methods, respectively. Pro- and anti-inflammatory cytokines (i.e., IL-8, IL-10, and TNF-α) were measured from nasal lavage samples using a multiplex assay. Inhalable dust concentrations ranged from 0.15 to 1.9 mg/m3. Concentrations of both pro- and anti-inflammatory cytokines, specifically IL-6, IL-8, and IL-10, were significantly higher in the treatment group compared to the control group (p < 0.02, p < 0.04, and p < 0.01, respectively). Further analysis of IL-10 anti-inflammatory indicates a positive association between hypertonic saline administration and IL-10 production. This pilot study demonstrates that hypertonic saline nasal lavages were successful in upregulating anti-inflammatory cytokines to support larger interventional studies.
Details
- Title: Subtitle
- Preliminary investigation of a hypertonic saline nasal rinse as a hygienic intervention in dairy workers
- Creators
- Grant Erlandson - Colorado State UniversitySheryl Magzamen - Colorado State UniversityJulia L Sharp - Colorado State UniversitySanchayita Mitra - University of Colorado DenverKenneth Jones - University of Oklahoma Health Sciences CenterJill A Poole - University of Nebraska Medical CenterMary Bradford - Colorado State UniversityMatthew Nonnenmann - University of IowaStephen J Reynolds - Colorado State UniversityJoshua W Schaeffer - Colorado State University
- Resource Type
- Journal article
- Publication Details
- Journal of occupational and environmental hygiene, Vol.20(1), pp.14-22
- DOI
- 10.1080/15459624.2022.2137297
- PMID
- 36260509
- PMCID
- PMC10958439
- ISSN
- 1545-9624
- eISSN
- 1545-9632
- Grant note
- name: HICAHS; name: NIOSH U01, award: #1U01OH010840; name: the CDC/NIOSH Mountain and Plains Education and Research Center, award: T42OH009229-07; DOI: 10.13039/100000125, name: NIOSH, award: 1RO1OH012-45; DOI: 10.13039/100000005, name: the Department of Defense, award: PR200793; name: the Cancer Center Support, award: P30CA04634
- Language
- English
- Electronic publication date
- 10/19/2022
- Date published
- 2023
- Academic Unit
- Occupational and Environmental Health; Internal Medicine
- Record Identifier
- 9984306659402771
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