The relationship of serum vitamins A, D, E and LL-37 levels with allergic status, tonsillar virus detection and immune response

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The relationship of serum vitamins A, D, E and LL-37 levels with allergic status, tonsillar virus detection and immune response

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Title: The relationship of serum vitamins A, D, E and LL-37 levels with allergic status, tonsillar virus detection and immune response
Author: Elenius, Varpu; Palomares, Oscar; Waris, Matti; Turunen, Riitta; Puhakka, Tuomo; Rückert, Beate; Vuorinen, Tytti; Allander, Tobias; Vahlberg, Tero; Akdis, Mübeccel; Camargo, Carlos A.; Akdis, Cezmi A.; Jartti, Tuomas

Note: Order does not necessarily reflect citation order of authors.

Citation: Elenius, V., O. Palomares, M. Waris, R. Turunen, T. Puhakka, B. Rückert, T. Vuorinen, et al. 2017. “The relationship of serum vitamins A, D, E and LL-37 levels with allergic status, tonsillar virus detection and immune response.” PLoS ONE 12 (2): e0172350. doi:10.1371/journal.pone.0172350. http://dx.doi.org/10.1371/journal.pone.0172350.
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Abstract: Background: Tonsils have an active role in immune defence and inducing and maintaining tolerance to allergens. Vitamins A, D, and E, and antimicrobial peptide LL-37 may have immunomodulatory effects. We studied how their serum levels were associated with allergy status, intratonsillar/nasopharyngeal virus detection and intratonsillar expression of T cell- and innate immune response-specific cytokines, transcription factors and type I/II/III interferons in patients undergoing tonsillectomy. Methods: 110 elective tonsillectomy patients participated. Serum levels of vitamins A, 25(OH)D, and E, LL-37 and allergen-specific IgE as well as nasopharyngeal/intratonsillar respiratory viruses were analyzed. The mRNA expression of IFN-α, IFN-β, IFN-γ, IL-10, IL-13, IL-17, IL-28, IL-29, IL-37, TGF-β, FOXP3, GATA3, RORC2 and Tbet in tonsils were analyzed by quantitative RT-PCR. Results: The median age of the patients was 16 years (range 3–60), 28% of subjects had atopy, and 57% carried ≥1 respiratory virus in nasopharynx. Detection of viruses decreased by age. Higher vitamin A levels showed borderline significance with less viral detection (P = 0.056). Higher 25(OH)D was associated with less allergic rhinitis and atopy (P < 0.05) and higher vitamin E with less self-reported allergy (P < 0.05). In gene expression analyses, 25(OH)D was associated with higher IL-37, vitamin A with higher IFN-γ and vitamin E with less IL-28 (P < 0.05). LL-37 was associated with less FOXP3, RORC2 and IL-17 in tonsils (P < 0.05). Conclusions: Vitamin D and E levels were associated with less allergic disorders. Vitamin A was linked to antiviral and vitamin D with anti-inflammatory activity. LL-37 and was linked to T regulatory cell effects.
Published Version: doi:10.1371/journal.pone.0172350
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5325266/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:32072203
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