Fructose dose-dependently influences colon barrier function by regulation of some main physical, immune, and biological factors in rats

Copyright © 2024 Elsevier Inc. All rights reserved..

Little is known about the effects of fructose on colonic function. Here, forty-eight 7-week-old male SD rats were randomly divided into four groups and given 0, 7.5%, 12.75%, and 35% fructose in diet for 8 weeks respectively to investigate the regulatory influence of fructose on colonic barrier function. The exact amount of fructose intake was tracked and recorded. We showed that fructose affects colonic barrier function in a dose-dependent manner. High-fructose at a dose of 1.69±0.23 g/kg/day could damage the physical barrier function of the colon by down-regulating expression of tight junction proteins (ZO-1 and occludin) and mucus layer biomarkers (MUC2 and TFF3). High fructose reduced sIgA and the anti-inflammatory cytokine (IL-10), induced abdominal fat accumulation and pro-inflammatory cytokines (IL-6 and IL-8), leading to colon inflammation and immune barrier dysfunction. In addition, high-fructose altered the biological barrier of the colon by decreasing the abundance of Blautia, Ruminococcus, and Lactobacillius, and increasing the abundance of Allobaculum at the genus level, leading to a reduction in short-chain fatty acids (SCFAs), amino acids, and carbohydrates, etc. Low fructose at a dose of 0.31±0.05 g/kg/day showed no adverse effects on the colonic barrier. The ability of fructose to affect the colonic barrier through physical, immune, and biological pathways provides additional insight into the intestinal disorders caused by high-fructose diets.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:126

Enthalten in:

The Journal of nutritional biochemistry - 126(2024) vom: 07. März, Seite 109582

Sprache:

Englisch

Beteiligte Personen:

Gan, Qianyun [VerfasserIn]
Song, Ge [VerfasserIn]
Fang, Wei [VerfasserIn]
Wang, Yong [VerfasserIn]
Qi, Wentao [VerfasserIn]

Links:

Volltext

Themen:

30237-26-4
Barrier function
Biological Factors
Colon
Dose-dependent
Fructose
Journal Article
Microbiota

Anmerkungen:

Date Completed 15.03.2024

Date Revised 15.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.jnutbio.2024.109582

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM367326701