Premium
Dietary exposure to benzoxazinoids enhances bacteria‐induced monokine responses by peripheral blood mononuclear cells
Author(s) -
Damgaard Dres,
Jensen Bettina Margrethe,
Palarasah Yaseelan,
Nielsen Michael Friberg Bruun,
Adhikari Khem Bahadur,
Schnoor Heidi Julius,
JuelBerg Nanna,
Poulsen Lars K.,
Fomsgaard Inge S.,
Nielsen Claus Henrik
Publication year - 2015
Publication title -
molecular nutrition and food research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.495
H-Index - 131
eISSN - 1613-4133
pISSN - 1613-4125
DOI - 10.1002/mnfr.201500151
Subject(s) - peripheral blood mononuclear cell , immunology , cytokine , monokine , lipopolysaccharide , immune system , porphyromonas gingivalis , stimulation , t cell , interleukin , biology , medicine , endocrinology , periodontitis , biochemistry , in vitro
Scope To examine potentially immunomodulating effects of dietary benzoxazinoids (BXs), present in cereal grains. Methods and results Nineteen healthy volunteers were randomly distributed into two groups, who received diets with high or low content of BXs for 3 wk. After a week's wash‐out, the groups switched diets. Peripheral blood mononuclear cells (PBMCs) were stimulated with Porphyromonas gingivalis , Escherichia coli lipopolysaccharide (LPS), or tetanus toxoid (TT). PBMCs from a healthy donor received the same stimuli in presence of serum from each participant receiving BXs. The production of monokines, T‐cell cytokines and T‐helper cell proliferation were assessed. A 3‐wk diet with high BX content enhanced IL‐1β responses against LPS and P. gingivalis , as well as TNF‐α response against P. gingivalis , after 24 h of stimulation. Moreover, IL‐6 was found to be increased after 7 days of stimulation with LPS. No effect was observed on T‐cell cytokines or proliferation. BX levels in serum after a single meal did not modify cytokine responses. Conclusion High dietary intake of BXs enhances bacteria‐induced production of pro‐inflammatory monokines by PBMCs, but not T‐cell responses; presumably due to intrinsic changes within PBMCs, built up over 3 wk of BX‐rich diet, rather than to an immediate effects of BXs contained in serum.