Interleukin-6 is associated with tryptophan metabolism and signs of depression in individuals with carbohydrate malabsorption.
depression
inflammation
interferon-gamma
interleukin-6
lactoferrin
tumor necrosis factor-alpha
Journal
EXCLI journal
ISSN: 1611-2156
Titre abrégé: EXCLI J
Pays: Germany
ID NLM: 101299402
Informations de publication
Date de publication:
2020
2020
Historique:
received:
22
09
2020
accepted:
22
10
2020
entrez:
14
12
2020
pubmed:
15
12
2020
medline:
15
12
2020
Statut:
epublish
Résumé
The aim of the present study was to investigate possible associations between interleukin-6 (IL-6), interferon-gamma (INF-γ), tumor necrosis factor-alpha (TNF-α), lactoferrin and lipopolysaccharide binding protein (LBP) with TRP metabolism and signs of depression in a large cohort of outpatients referred for carbohydrate malabsorption testing. Serum concentrations of IL-6, INF-γ, TNF-α, lactoferrin, LBP, tryptophan (TRP), kynurenine (KYN) and kynuric acid were determined in 250 adults referred for lactose and fructose malabsorption testing. All participants filled out the Beck Depression Inventory (BDI). Serum IL-6 levels were positively correlated with the BDI score (p = 0.001, ρ = 0.205) and indicators of TRP metabolism (KYN/TRP ratio, KYN) (P-values < 0.05, ρ = 0.176 and 0.136). Ninety-five individuals with a BDI score > 13 showed significantly higher IL-6 serum levels (1.7 [1.0 - 2.8] vs. 1.1 [0.8 - 1.7] pg/mL, p < 0.001) compared to 115 individuals with a BDI score ≤ 13. LBP showed a positive correlation with the KYN/TRP ratio (p = 0.005, ρ = 0.177). IL-6 and LBP were associated with indicators of TRP metabolism. IL-6 was found to be linked to signs of depression. Individuals with the presence of depressive symptoms showed higher serum IL-6 levels compared to individuals without depressive symptoms.
Identifiants
pubmed: 33312105
doi: 10.17179/excli2020-2940
pii: 2020-2940
pmc: PMC7726491
doi:
Types de publication
Journal Article
Langues
eng
Pagination
1414-1422Informations de copyright
Copyright © 2020 Enko et al.
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