Faculty, Staff and Student Publications

Publication Date

10-1-2023

Journal

Brain, Behavior, & Immunity

Abstract

Fatigue among patients with head and neck cancer (HNC) has been associated with higher inflammation. Short-chain fatty acids (SCFAs) have been shown to have anti-inflammatory and immunoregulatory effects. Therefore, this study aimed to examine the association between SCFAs and fatigue among patients with HNC undergoing treatment with radiotherapy with or without concurrent chemotherapy. Plasma SCFAs and the Multidimensional Fatigue Inventory-20 were collected prior to and one month after the completion of treatment in 59 HNC patients. The genome-wide gene expression profile was obtained from blood leukocytes prior to treatment. Lower butyrate concentrations were significantly associated with higher fatigue (p = 0.013) independent of time of assessment, controlling for covariates. A similar relationship was observed for iso/valerate (p = 0.025). Comparison of gene expression in individuals with the top and bottom 33% of butyrate or iso/valerate concentrations prior to radiotherapy revealed 1,088 and 881 significantly differentially expressed genes, respectively (raw p < 0.05). The top 10 Gene Ontology terms from the enrichment analyses revealed the involvement of pathways related to cytokines and lipid and fatty acid biosynthesis. These findings suggest that SCFAs may regulate inflammatory and immunometabolic responses and, thereby, reduce inflammatory-related symptoms, such as fatigue.

Keywords

Humans, Prospective Studies, Fatty Acids, Volatile, Butyrates, Head and Neck Neoplasms, Valerates, Fatigue, Short chain fatty acids, fatigue, inflammation, gene expression, radiotherapy, chemotherapy, head and neck cancer

DOI

10.1016/j.bbi.2023.07.025

PMID

37543249

PMCID

PMC10528227

PubMedCentral® Posted Date

10-1-2024

PubMedCentral® Full Text Version

Author MSS

Published Open-Access

yes

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