Baker's yeast beta glucan supplementation was associated with an improved innate immune mRNA expression response after exercise.

Autor: McFarlin BK; Applied Physiology Laboratory, University of North Texas, Denton, TX 76203, United States; University of North Texas, Dept. of Biological Sciences, Denton, TX 76203, United States. Electronic address: Brian.mcfarlin@unt.edu., Bridgeman EA; Applied Physiology Laboratory, University of North Texas, Denton, TX 76203, United States. Electronic address: Elizabeth.tanner@unt.edu., Curtis JH; Applied Physiology Laboratory, University of North Texas, Denton, TX 76203, United States. Electronic address: John.curtis@unt.edu., Vingren JL; Applied Physiology Laboratory, University of North Texas, Denton, TX 76203, United States; University of North Texas, Dept. of Biological Sciences, Denton, TX 76203, United States. Electronic address: Jakob.vingren@unt.edu., Hill DW; Applied Physiology Laboratory, University of North Texas, Denton, TX 76203, United States. Electronic address: David.hill@unt.edu.
Jazyk: angličtina
Zdroj: Methods (San Diego, Calif.) [Methods] 2024 Oct; Vol. 230, pp. 68-79. Date of Electronic Publication: 2024 Aug 02.
DOI: 10.1016/j.ymeth.2024.07.013
Abstrakt: Beta glucans are found in many natural sources, however, only Baker's Yeast Beta Glucan (BYBG) has been well documented to have structure-function effects that are associated with improved innate immune response to stressors (e.g., exercise, infection, etc.). The purpose was to identify a BYBG-associated mRNA expression pattern following exercise. Participants gave IRB-approved consent and were randomized to BYBG (Wellmune®; N=9) or Placebo (maltodextrin; N=10) for 6-weeks prior to performing 90 min of whole-body exercise. Paxgene blood samples were collected prior to exercise (PRE), after exercise (POST), two hours after exercise (2H), and four hours after exercise (4H). Total RNA was isolated and analyzed for the expression of 770 innate immune response mRNA (730 mRNA targets; 40 housekeepers/controls; Nanostring nCounter). The raw data were normalized against housekeeping controls and expressed as Log 2 fold change from PRE for a given condition. Significance was set at p < 0.05 with adjustments for multiple comparisons and false discovery rate. We identified 47 mRNA whose expression was changed after exercise with BYBG and classified them to four functional pathways: 1) Immune Cell Maturation (8 mRNA), 2) Immune Response and Function (5 mRNA), 3) Pattern Recognition Receptors and DAMP or PAMP Detection (25 mRNA), and 4) Detection and Resolution of Tissue Damage (9 mRNA). The identified mRNA whose expression was altered after exercise with BYBG may represent an innate immune response pattern and supports previous conclusions that BYBG improves immune response to a future sterile inflammation or infection.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Research study design, data collection, analysis, and manuscript preparation were generated exclusively by the UNT project team, without input from the funder. We report no conflict of interest associated with the completion of the present work.
(Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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