A High-Sodium Diet Modulates the Immune Response of Food Allergy in a Murine Model

Nutrients

卷:13

Chih-Kang Huang¹  Ching-Feng Huang¹  Shih-Kuan Li¹  Zheying Liu² 

[1] Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Taipei Veterans General Hospital, Taipei City 11217, Taiwan;

[2] Emergency Department, Department of Emergency and Critical Medicine, Wan Fang Hospital, Taipei Medical University, Taipei City 11696, Taiwan;

关键词: food allergy;    ovalbumin;    IgE;    high salt diet;    Th2 response;   

DOI  :  10.3390/nu13113684

来源: DOAJ

【 摘 要 】

Mounting evidence demonstrates that a high-salt diet (HSD) not only affects hemodynamic changes but also disrupts immune homeostasis. The T helper 17 (Th17) and regulatory T cells (Tregs) are susceptible to hypersalinity. However, research on the influence of sodium on Th2-mediated food allergies remains scarce. We aimed to investigate the effect of dietary sodium on the immune response to food allergies. Mice maintained on an HSD (4% NaCl), low-salt diet (LSD; 0.4% NaCl), or control diet (CTRL; 1.0% NaCl) were orally sensitized with ovalbumin (OVA) and a cholera toxin (CT) adjuvant, and then subjected to an intragastric OVA challenge. OVA-specific immunoglobulin G (IgG), IgG1, IgG2a, and IgE antibodies were significantly higher in the HSD group than in the CTRL group (p < 0.001, p < 0.05, p < 0.01, and p < 0.05, respectively). Mice on HSD had significantly higher interleukin (IL)-4 levels than the CTRL group (p < 0.01). The IL-10 levels were significantly lower in the HSD group than in the CTRL group (p < 0.05). The serum levels of interferon-γ (IFN-γ), sodium, and chloride did not differ among the three groups. This study indicates that excessive salt intake promotes Th2 responses in a mouse model of food allergy.

【 授权许可】

Unknown